Sliding Wedge Patents (Class 24/115M)
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Patent number: 4782560Abstract: A tassel for joining the ends of a draw cord of the type used for closing of a fabric bag, or optionally for mounting on the end of a pull cord of the type used for operating a lamp. The tassel includes a shell having a downwardly opening cavity with a cord end or ends receiving aperture formed through the top. A plug is demountably carried in the cavity of the shell and cord gripping elements are formed in the shell and on the plug for frictionally holding the cord end or ends in the tassel structure.Type: GrantFiled: June 15, 1987Date of Patent: November 8, 1988Assignee: Karsten Manufacturing CorporationInventor: Gary E. Keller
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Patent number: 4719671Abstract: A strap connector comprises a connector body and a core. The connector body is formed in a hollow, approximately square pole like shape with openings formed in two opposed sides thereof. The core is provided with a groove part which is of a width approximately equal to the sum of diameters of two pieces of strap and a base part which has an end face a little wider than the width of the groove part and is located away from and facing the opening of the groove part at a distance about equal to the diameter of the strap.Type: GrantFiled: May 7, 1987Date of Patent: January 19, 1988Assignee: Canon Kabushiki KaishaInventors: Hitomi Ito, Toshitsugu Furuya
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Patent number: 4718788Abstract: An equalizer socket including a socket body, a plurality of grooved wire receiving wedges removably inserted therein and at least one center wedge having a greater taper in bearing contact with the ropes of the grooved wedges, and constraining means associated with the end of the socket body for the center wedge.Type: GrantFiled: August 5, 1986Date of Patent: January 12, 1988Assignee: ESCO CorporationInventor: Terry L. Briscoe
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Patent number: 4673309Abstract: A method and an apparatus are described for anchoring cables, bundles of parallel or standard wire, or the like, of preferably high-tensile steel wire. At least one end of the cable or the like is introduced into a fixed anchoring socket and sealed with a pourable material. In order for the anchoring apparatus to have improved properties under static stress, and in particular under great dynamic stress, without requiring additional structural safety features, while enabling lower-cost manufacture, it is provided that the bundle be twisted and the bundle or cable opened for some distance from the associated end in such a manner that the wires or strands extend uniformly all the way through the conical inner region of the anchoring socket. Further, a metallic casting material is poured into the anchoring socket between the opened wires or strands, and a direct metal-to-metal joint is established between the metallic casting material and the wires or strands of the cable or bundle.Type: GrantFiled: December 24, 1984Date of Patent: June 16, 1987Inventors: Jorg Schlaich, Rudolf Bergermann
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Patent number: 4667772Abstract: A mountaineering self rescue, no moving part, ascender is used in pairs in conjunction with standard mountaineering equipment, to allow a climber to ascend a safety rope without aid, beyond the belaying of the safety rope. This no moving part ascender is simple, light weight, unaffected by ice, and placed in position with one hand. The first embodiment consists of a U shaped housing, whose vertical sides extend horizontally from a vertical curved back. The interior of the curved back is serrated to increase friction and is placed to partially surround a belayed climbing or safety rope, defining a travel path for this rope. The oppositely spaced apart vertical sides, each have a mirror image longitudinal bias slot. Carabiners, with attached sling ropes, already carried by mountaineers, are snapped into the bias slots of the ascender.Type: GrantFiled: July 25, 1985Date of Patent: May 26, 1987Inventor: Kent R. Kammerer
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Patent number: 4641816Abstract: An apparatus for stretching, loosening, and fixing a wire member includes a grasping member for grasping an end of the wire member, a displacing member for displacing the grasping member so as to stretch/loosen the wire member in the longitudinal direction thereof, a fixing member having a wedge receiving face, and a wedge member disposed axially between the fixing member and the grasping member. The wedge has a wedge face tapering toward the wedge receiving face of the fixing member and is divided circumferentially into a plurality of parts. A pushing member pushes the wedge member toward the wedge receiving face of the fixing member, and a holding member holds the wedge member away from the fixing member when the wire member is stretched/loosened by the displacing member.Type: GrantFiled: June 12, 1985Date of Patent: February 10, 1987Assignee: Harumoto Iron Works Co., Ltd.Inventors: Hiroo Kishida, Hirofumi Takenaka
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Patent number: 4640281Abstract: A tourniquet including a belt and buckle with the buckle being formed of st and second buckle parts with a first end belt being connected to the first buckle part formed in a loop, and a second end thereof being releasably clamped between the first and second buckle parts; a pair of pivot pins of the first buckle part being received in recesses of the second buckle part for assembling these parts and maintaining the same in pivotal relationship to each other, and a cam operative upon relative sliding motion between the first and second buckle parts to automatically pivot the buckle parts to clamp the second belt in therebetween. In another embodiment the clamping effect is created by utilizing the elastic force of the belt which acts against a projecting portion of the first buckle belt to pivot the same to its clamping position.Type: GrantFiled: December 9, 1985Date of Patent: February 3, 1987Assignee: Prameta Prazisionsmetall- und Kunststofferzeugnisse G. Baumann & Co.Inventors: Gerd-Jochen Sturm, Wolfgang Wehking
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Patent number: 4637098Abstract: Disclosed herein is a shim having a quite simple and easily operable shape and is used for a cable clamp composed of a wedge-like member and a sleeve-like member, those members being telescopically assembled to clamp a cable therebetween. Said sleeve-like member is linked with said shim through a simple and low cost means.Type: GrantFiled: December 23, 1985Date of Patent: January 20, 1987Assignee: Okura Electric Industry Co., Ltd.Inventors: Masahiko Okura, Minoru Inayashi
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Patent number: 4628630Abstract: A deep trolling release device releasably connects a fishing line to a downrigger line. A hollow outer member is connectable to the downrigger line. An inner member is slidably received in the outer member. There is a pin on the inner member adjacent the aperture with a free end. The pin normally spans the aperture for holding the fishing line which extends about the pin. A release device adjacent the top of the inner member is capable of being struck by a weight slidably dropped down the downrigger line to displace the inner member downwardly and move the free end of the pin across the aperture to release the fishing line. A recess member has a recess with an internal spline means and a passageway for fishing line exterior to the recess. A wedge member has a tapering portion shaped to wedge within the recess member. The tapering portion has longitudinal grooves extending along opposite sides thereof.Type: GrantFiled: November 4, 1985Date of Patent: December 16, 1986Inventor: Edward A. Bohme
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Patent number: 4615532Abstract: A ball stop is locked to a cable by inserting the cable through an opening in the ball. The ball is then rigidly clamped in place by a wedge which is inserted into the aperture surrounding the cable and threads in the aperture and on the external part of the wedge mate and are screwed together to cam the wedge into frictional engagement with the cable.Type: GrantFiled: September 14, 1984Date of Patent: October 7, 1986Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Cleveland J. Biller, David D. Johnson
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Patent number: 4598443Abstract: A device for providing a clamping joint comprises two elements (1,2) with complementary threads, each having a flange constituting a clamping surface. Clamping takes place upon relative axial displacement of the elements (1,2) which can be brought about by screws (4) arranged axially in bores in a flange (5) on one element. In order to prevent accidental disengagement of the elements, at least one of the threads adjoins at one end to a part (6) which is wedged against an opposing thread flank when the elements (1,2) are rotated in relation to each other over a predetermined end position.Type: GrantFiled: January 23, 1984Date of Patent: July 8, 1986Assignee: SKF Nova ABInventors: Sture Ostling, Bengt Lundgren
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Patent number: 4596486Abstract: A termination for cables of the type having a central bundle of conductors surrounded by strength members includes a rigid sleeve closely surrounding the bundle of conductors beneath the strength members and a rigid housing surrounding the strength members outwardly of the sleeve. The strength members are encapsulated in a hardenable material to define an enlarged lug closely received between said sleeve and housing. The housing and lug have cooperating cam surfaces for compressing the lug between the housing and sleeve when a pulling force is applied to the housing. The outer diameter of the housing is cylindrical and has a diameter approximately the same as the diameter of the cable outer cover.Type: GrantFiled: October 17, 1983Date of Patent: June 24, 1986Assignee: PMI Industries, Inc.Inventor: Otto C. Niederer, Sr.
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Patent number: 4589351Abstract: A shelf apparatus comprising, a plurality of vertical supports, at least one shelf defining holes whereby the shelf may be slidably located on the vertical supports, two wedge clamps adaptable to at least partially fit within each hole whereby the shelf will press the wedge clamp against the vertical support.Type: GrantFiled: October 23, 1984Date of Patent: May 20, 1986Inventor: Norman H. Love
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Patent number: 4572565Abstract: This invention is directed to a stopper for a wire cable or a wire rope. It comprises to channels, two jaws moveable with respect to each other in the two channels and two wedges for moving the jaws. There are no gears for moving the jaws. With the movement of the wedges partially out of the channels the wedges force the jaws toward each other so as to clamp the wire cable or wire rope.Type: GrantFiled: August 9, 1984Date of Patent: February 25, 1986Assignee: Washington Chain & Supply Company, Inc.Inventor: Irving Epstein
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Patent number: 4561154Abstract: A socket-wedge connection for wedge-type rope socket wherein a multi-part wedge is employed having one part collapsible, finding advantageous use, for example, in the lines employed with excavating equipment.Type: GrantFiled: April 26, 1984Date of Patent: December 31, 1985Assignee: ESCO CorporationInventors: Terry L. Briscoe, Robert L. Van Hoomissen
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Patent number: 4542562Abstract: Disclosed herein is a cable clamp having a quite simple and easily operable construction, wherein a wedge-like member and a sleeve-like member are telescopically assembled to clamp a cable therebetween, said two members being adapted to be in an inseparable (or linked) condition at all times.Type: GrantFiled: February 6, 1985Date of Patent: September 24, 1985Inventor: Masahiko Okura
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Patent number: 4527308Abstract: This invention provides a device for closing a flexible container which comprises a body portion having first and second opposed gripping arms extending therefrom. The arms are each adapted to be folded about a fold line relative to the body portion so that the arms, with the body, are capable of at least partially encircling the flexible container for closure thereof. Each of the arms has at least one gripping and engaging means extending inwardly therefrom, and the body has a first gripping and engaging means adapted to fixedly engage the flexible container in one direction and a second gripping and engaging means adapted to fixedly engage the flexible container in a second opposed direction. Means are provided in at least one of the body or arm members for passage of a tie member operatively associated therewith. The device provides a tamperproof closure for a flexible container when used in combination with a tie and deformable sealing element.Type: GrantFiled: October 17, 1983Date of Patent: July 9, 1985Assignee: Les Entreprises Tritton LteeInventors: Victor R. Tritton, Gary E. Tritton, Francis Chevillard
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Patent number: 4509233Abstract: An improved clamp for nonmetallic rope has a plug formed with an annular collar at one end and a plurality of tapered segments formed integrally with the collar and extending outwardly therefrom. The plug has a hollow axial bore defined by a serrated cylindrical surface to increase the gripping effect on a rope telescopically inserted into the bore. The plug is telescopically inserted into the tapered bore of an outer sleeve which compresses the tapered segments of the plug against the rope. The length of the plug is at least ten times greater than the diameter of its bore, which in combination with the annular collar, provides an increased clamping pressure between the serrated surfaces of the tapered segments and the rope throughout the length of the plug.Type: GrantFiled: June 15, 1983Date of Patent: April 9, 1985Assignee: Esmet, Inc.Inventor: Charles R. Shaw
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Patent number: 4486979Abstract: A releasable grip-lock device for flexible elongate connectors such as ropes are used, particularly, in the cattle industry. The device is especially applicable to guillotine-type doors which are raised, maintained in a raised position in rock condition, and subsequently dropped at rather precise times so as to retain cattle in enclosures. The accommodating structure includes the principal of jaws, one of which is spring-loaded, for the purpose of gripping the rope holding the door open, for example, or actuates as a feeder which serves as a detent to keep the jaws open so that a rope will slip therethrough when a door to which the rope is attached or to which the same cooperates is dropped at desired times. A control lever is incorporated for the purpose of requiring a positive situation to urge the jaws from locked to unlocked position.Type: GrantFiled: May 24, 1983Date of Patent: December 11, 1984Inventor: Frank J. Reitemeyer
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Patent number: 4471513Abstract: A seat belt buckle mounting device for use in motor vehicles and the like includes an attachment body that is secured to an anchoring cable and a buckle base plate to which the anchoring body is attached. The attachment body includes longitudinally extending grooves formed on opposite sides thereof and the buckle base plate includes a central aperture for receiving the attachment body and having inwardly extending opposed projections that are designed to enter and forcibly engage the grooved portions of the attachment body to thereby fixedly secure the attachment body to the buckle base plate. The present invention advantageously provides a seat belt buckle mounting device in which the piece parts are both simple to manufacture and assemble when compared to prior devices.Type: GrantFiled: December 8, 1981Date of Patent: September 18, 1984Assignee: NSK-Warner, K.K.Inventor: Kiyoshi Ogawa
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Patent number: 4458389Abstract: A rope widening apparatus for use with tubular interlocking stranded rope comprising a rear tapered portion located on a generally football shaped insert to be placed within the strand groups of said rope, such that a force tending to draw the rope from the narrow to the large part of the taper will cause the strand groups to squeeze around the taper, and means to maintain the insert generally centrally disposed within the strand groups, and means to transfer the pulling force on the rope from the rear tapered portion to a desired object.Type: GrantFiled: April 26, 1982Date of Patent: July 10, 1984Inventor: Stephen F. Guthmann
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Patent number: 4455717Abstract: A device for clamping together two lengths of rope such as a rope formed of braided plastic, the device having a pair of inner core members each having a mating inner surface so that when the members are positioned in engagement or adjacent to each other they provide an elongated core having a generally tapered truncated conical external surface having threads on the external surface. Each of the core members has a recess in the inner surface in the plane of the longitudinal axis so that two portions of a rope may be positioned between mated core members. An outer ring having a tapered opening therethrough is internally threaded so that when the outer ring is screwed onto the abutted core members it forces them together, clamping rope portions therebetween, the grooves formed in the abutting surfaces of the core members preferably have integral pointed spikes which penetrate the fibers of rope portions positioned between the core members to more securely hold the rope portions against slippage.Type: GrantFiled: September 22, 1982Date of Patent: June 26, 1984Inventor: Robert C. Gray
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Patent number: 4384389Abstract: A rope-chaining device is formed consisting of a screw bar screwed into one side of acceptor, and an arcuately-shaped plate is provided rotatably at the end portion of the screw bar within the acceptor. A rope-fixing member is disposed within the acceptor and a wedge having a longitudinal hole defined therein is disposed within the rope-fixing member. A pivot penetrates the long hole so that the rope-fixing member may be pivotally mounted within the acceptor, and upon the wedge a rope is wound to be fastened tightly, an arcuately-shaped plate being pressed to the rope.Type: GrantFiled: January 19, 1981Date of Patent: May 24, 1983Inventor: Soichiro Sato
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Patent number: 4379358Abstract: A cord adjuster comprising a body 31 having a through passage 32 which is divided longitudinally for the accommodation of cord sections capable of being passed therethrough in side-by-side spaced arrangement, and an arresting member 10 supported on the body for displacement between two end positions, said arresting member being provided with clamping areas 21, 22 disposed in the through passage and cooperating with respective associated clamping areas 45, 46 of the body, in order to clamp the cord sections between them in tight clamping engagement in one end position of the arresting member.Type: GrantFiled: July 30, 1981Date of Patent: April 12, 1983Assignee: ITW-ATECO GmbHInventor: Guter Wibrow
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Patent number: 4378040Abstract: A novel and improved traction device comprises a cable-type chain adapted to be mounted on radial tires for emergency use wherein a pair of lateral cables are adapted to extend cicumferentially along opposite sidewalls of the tire. A plurality of cross-members are arranged at spaced intervals transversely of and between lateral cables to which opposite ends of each of the cross members are connected. Each of the cross members is in the form of an elongated flexible member composed of a wire or wire-like material with an outer plastic coating in surrounding relation to the elongated flexible member. At least one sleeve member is slidably disposed in outer surrounding relation to each of the cross members, the sleeve members being composed of a high impact-resistant material in the form of a plurality of extruded tubular sections of limited length disposed in end-to-end relation to one another for extension along the length of each cross member.Type: GrantFiled: June 15, 1981Date of Patent: March 29, 1983Inventor: Verle L. Howell
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Patent number: 4370778Abstract: A novel sausage casing binder made of elements of plastic and a method by which the elements are mounted against the constricted portion of the casing so as to form a clamp ring thereabout, whereafter the elements are joined to stabilize the rigid and entirely closed annular shape of the clamp ring in secure engagement with the constricted portion. For binding the casing in the end which is going to be suspended by the smoking of the sausage a binding element is used which is provided with a suspension member forming an integral part thereof, whereby the use of special suspension members to be laid under the clamp is obviated and a very safe suspension is obtained.Type: GrantFiled: December 1, 1980Date of Patent: February 1, 1983Inventor: Erik Madsen
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Patent number: 4363462Abstract: The formwork for a concrete structural member includes a recoverable formwork part. This recoverable part has an axially elongated sheath which closely encloses a tendon over a relatively long portion of the length of the sheath. A cup-shaped part formed integrally with the sheath is arranged to form at least a portion of a recess in the concrete member. When assembled on the formwork, one end of the sheath is arranged to be located within the concrete when it is poured and the other end is located on the exterior of the formwork. The cup-shaped part is located intermediate the ends of the sheath and just inside the formwork. A member is engageable with the sheath for attaching it to the formwork.Type: GrantFiled: January 21, 1981Date of Patent: December 14, 1982Assignee: Dyckerhoff & Widmann AktiengesellschaftInventors: Johann Wlodkowski, Dieter Jungwirth
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Patent number: 4362288Abstract: A shock absorbing cable anchor for mobile equipment has an open-ended sleeve or housing with a slot along one side thereof through which an electrical cable may be inserted, with both ends of the cable passing through one of the open ends of the sleeve and the cable defining a loop or bight portion projecting out of the other open end of the sleeve. The sleeve is tapered from said one end to the other open end and is larger in width at said other open end. A wedge shaped complementally to the sleeve is inserted through said other open end of the sleeve and presses the cable outwardly against the sleeve sides to prevent the cable from being pulled out of the sleeve. A spring device is connected between the sleeve and an anchor point to resiliently support the sleeve and cable.Type: GrantFiled: June 27, 1980Date of Patent: December 7, 1982Inventor: Herman Allen
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Rope clamping device comprising two toothed clamping elements adapted to be pressed against the rope
Patent number: 4340997Abstract: A rope clamping device having two opposing clamping elements with teeth which are mounted above a bearing surface for varying the distance therebetween to allow a rope to be inserted and removed it is configured so that the distance therebetween is reducible in response to a tensile force applied to the rope to press the clamping elements thereagainst. The clamping elements comprise rollers mounted with their axes of rotation subtending an acute angle therebetween. The rollers are mounted for free rotational movement around their axes and for longitudinal displacement therealong to alter the distance therebetween.Type: GrantFiled: July 9, 1979Date of Patent: July 27, 1982Inventor: Gunther M. Voss -
Patent number: 4336636Abstract: A fastening device is structured so that one half thereof is symmetrical with the other and includes a casing, with a pair of inwardly folded portions, and a pair of symmetrical block-members, each having a bar-member and accommodated within the casing such that one end of each block-member is respectively outwardly biased toward the lateral open ends of the casing. Respective end portions of strings or the like are wound around the respective bar-member and respectively abut the respective folded portions as long as the respective ends of the block-members remain outwardly biased and are not pushed inwardly by a user.Type: GrantFiled: January 30, 1980Date of Patent: June 29, 1982Inventors: Yoshihiko Ishiguro, Keiko Ishiguro, Hiromi Shiotani
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Patent number: 4333649Abstract: A racket string clamp including a plurality of wedges for being inserted into a hole extended through a game ball racket frame and for being wedged between the end portion of a game ball string and the surface of the racket frame defining the hole to secure the end portion of the string to the racket frame, and further including handle means including a plurality of handle members equal in number to the wedges and formed integrally therewith and for maintaining the wedges in a predetermined relationship with respect to each other, the wedges and handle means having inner surfaces providing in combination a passageway for receiving the string, the rearward portions of the handle members being formed integrally to provide a pivot about which the handle members and wedges pivot away from and toward each other in tweezer-like action, upon the handle members and wedges pivoting away from each other, the string is provided access to the passageway and upon the string being received within the passageway the handleType: GrantFiled: October 1, 1980Date of Patent: June 8, 1982Assignee: AMF IncorporatedInventors: George A. Vaughn, Francis J. Fuchs, Jr.
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Patent number: 4313243Abstract: A bight of a cable is wrapped around a sliding wedge thimble which, when one or both of the cable parts is pulled, jams the cable parts between convergent sides of the wedge thimble and opposed convergent sides of a casing. A key, when engaged through registering keyways of the wedge thimble and casing, limits the sliding movement of the wedge thimble so that the latter does not jam the cable parts but, rather, permits the cable to slip lengthwise around it. The key is tapered, and the keyways are so arranged that they serve to unjam the cable when the key is forced through the keyways.Type: GrantFiled: April 12, 1979Date of Patent: February 2, 1982Inventors: Ray R. Childress, Stephen R. Childress
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Patent number: 4205417Abstract: There is disclosed a ferrule which is made of plastic material and is initially molded in one piece as a ferrule blank consisting of a thin-walled circular cylindrical shell or sleeve, a radially inwardly-directed transverse annular flange at the inner end of the sleeve, and a part which initially extends further axially inwardly from the flange, the said part having a plurality of axially extending fingers formed by straight-walled axial slots. The axially outer ends of the fingers are joined at their roots to the outer edge of the above-mentioned annular flange. The radially outer edge of such flange is joined to the axially inner end of the sleeve by a very narrow frangible annular flange. The fingers as initially molded diverge in an axially inwardly direction from their roots. Each of the fingers adjacent its inner end is provided with a peripheral groove which terminates at its inner end in a radially outwardly projecting lip.Type: GrantFiled: September 28, 1977Date of Patent: June 3, 1980Inventor: Glenn H. Mackal
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Patent number: 4156574Abstract: A cord lock including a body containing a passage within which there is received a locking slide adapted to wedge a pair of cords against opposite side walls of the passage, with the slide having a main locking portion with a pair of toothed faces engageable with the cords respectively, and resiliently flexible feeler arms projecting from the slide and engageable with the cords in both the locked and released positions of the slide to attain a self locking action automatically actuating the slide to its locking position upon predetermined movement of the cords, and retaining the slide in locked position until purposely released therefrom. The side walls of the passage and the body desirably have converging portions laterally opposite and coacting with the main locking portion of the slide, and non-converging portions laterally opposite and coacting with the resilient feeler arms.Type: GrantFiled: February 6, 1978Date of Patent: May 29, 1979Inventor: Ogden W. Boden
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Patent number: 4125919Abstract: A cable clamp includes a box-like housing with opposite sidewalls, an open top and opposite end openings. A clamping mechanism within the housing includes a pair of laterally and longitudinally movable, laterally spaced inner clamping blocks with replaceable wear plates on their inner faces defining a cable passage therebetween so that a cable can pass freely longitudinally through the housing. A pair of outer wedging blocks back up the inner blocks and are laterally but not longitudinally movable within the housing. The outer blocks are spaced inwardly from the sidewalls of the housing to define wedging spaces. Longitudinally double-tapered outer faces of the inner blocks mate with complementary inner faces of the outer blocks. The outer faces of the outer blocks are vertically tapered to receive correspondingly tapered wedging surfaces of activating wedges movable vertically within the wedging spaces to drive the outer and inner blocks laterally toward the cable, causing the wear plates to grip it.Type: GrantFiled: March 24, 1977Date of Patent: November 21, 1978Inventor: Eston A. Dumont
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Patent number: 4066368Abstract: An easily installable, high load capacity deadending apparatus for securing the end of lines such as guy cables and the like to anchoring structure is provided which includes a tapered wedge block in conjunction with a helically preformed line tie adapted to grip the line and preferably extend around and engage the remote end of the wedge block for securing the latter against substantial axial movement; a socket casting having a complementally tapered bore is applied over the wedge block and line tie thereround to complete the apparatus and permit connection thereof to an earth anchor or like device so that the socket and block are biased together in mutual gripping interengagement. In practice, as the line experiences increasing tension loads, the wedge block and socket are pulled into tight interengagement which in turn causes a tighter grip of the line and increases the overall holding power of the deadending apparatus.Type: GrantFiled: August 5, 1975Date of Patent: January 3, 1978Assignee: A. B. Chance CompanyInventors: Henry N. Mastalski, James P. Lucas, Edward Dziedzic, David P. Eppinger
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Patent number: 4023242Abstract: A connector for connecting together end-to-end two sets of reinforcing tendons in a concrete structure, particularly at the junction of sections in a post-stressed structure, has respective sets of bores for the sets of tendons providing, for both sets, frusto-conical seats for gripping wedges for the tendons, and also has for one of the sets of tendons means for resiliently urging the wedges into their seats, in order to hold the tendons in place until they are tensioned. The two sets of bores may be in a gripping plate, and the resilient means in a spacing member abutting the plate.Type: GrantFiled: August 19, 1975Date of Patent: May 17, 1977Assignee: Buildinter A.G.Inventor: Eduardo Caro Roqueta
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Patent number: 3982844Abstract: Disclosed is a novel fastener for attaching flexible tape comprising a tri-laterally symmetric retainer and a receiving aperture such that a portion of the flexible tape wrapped around said retainer may be gripped and said aperture, the gripping force increasing when tension is supplied to said tape.Type: GrantFiled: February 3, 1976Date of Patent: September 28, 1976Assignee: Mattel, Inc.Inventors: Nicholas De Anda, Robert Ford Dyer
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Patent number: 3975799Abstract: This invention relates to a so-called live anchorage for use in the prestressing of concrete structures, the stressing element being anchored in a hole having a frusto-conical portion and a cylindrical portion by means of a frusto-conical wedge device, the leading or narrow end of said wedge device being such that it extends into said cylindrical portion.Type: GrantFiled: August 13, 1974Date of Patent: August 24, 1976Assignee: CCL Systems LimitedInventor: Robert Michael Kerr
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Patent number: 3976079Abstract: Devices for releasably securing externally located sutures are disclosed. These devices may be utilized, for example, to maintain a retention suture in place over an abdominal incision. According to a first configuration, the devices have button-like bodies and have slots therethrough for receiving the suture. Means for securing the suture to the device pass into the slot and compress the suture against the body. According to a second construction, a bridge device is utilized wherein the sutures are received in slots on the bridge where they are secured by compression members.Type: GrantFiled: May 6, 1975Date of Patent: August 24, 1976Inventors: Peter B. Samuels, Ernest C. Wood
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Patent number: 3965544Abstract: A device for locking cords or the like against longitudinal movement, and including a slide received within a tapering passage in a body and movable axially relative to the body, with a cord extending along a path between a locking portion of the slide and a side wall of the tapering body passage, and with the cord being gripped by a wedging action when the cord is pulled longitudinally, and also by a spring action attained by yieldingly urging the locking portion laterally toward the side wall of the body independently of the camming action. Preferably, the slide has two such locking portions formed as two arms yieldingly urged laterally away from one another and defining two paths along which a pair of cords or the like extend at opposite sides of the slide, with each cord being gripped by both a wedging action and spring action.Type: GrantFiled: June 11, 1975Date of Patent: June 29, 1976Inventor: Ogden W. Boden
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Patent number: 3960461Abstract: A drop wire and/or cable clamp to provide a predetermined tension in a wire and/or cable between said clamp and a building to which said wire and/or cable is connected at one end and to produce a loose portion between said clamp and a box to which said wire and/or cable is connected at the other end. This clamp comprises a conical member, and a conical sleeve for mounting over the conical member. The clamp will be arranged for axially clamping the wire between the conical member and the conical sleeve and it will be possible to fix the conical member adjacent the box, with the conical sleeve mounted thereover and the wire therebetween. The net result will be to produce a loose portion in the wire or cable which has been installed between the box and the drop wire and/or cable clamp, and at the same time to obtain the portion under tension between the clamp on the building.Type: GrantFiled: April 7, 1975Date of Patent: June 1, 1976Inventor: Isaac Sachs
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Patent number: 3957237Abstract: Generally, each of my chock embodiments has one or more of the following features: a rigid body having a nonsuperficial recessed surface portion or portions on one or more of its working surfaces for saddling a rock formation; a cap portion along the top edge of each working surface of the rigid body; a runner aperture opening solely on the bottom surface of the rigid body; a separate anchor wedged in the runner aperture for securing the runner and reinforcing the rigid body; a runner anchor recessed from the top and/or bottom surfaces of the rigid body; a double loop cable runner; and in the smallest sizes, a rigid body having one or more hooked portions for setting over a constriction of a crack in a rock formation and a second portion protruding from the crack for securing a runner.Type: GrantFiled: May 17, 1974Date of Patent: May 18, 1976Inventor: Gaylord K. Campbell
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Patent number: 3953144Abstract: A cord locking device including a body carrying a movable slide element having two sets of teeth at its opposite sides for releaseably gripping a pair of cords to lock them against movement in a predetermined direction, with each set of teeth including a first tooth which is relatively sharp and therefore capable of readily locally deforming a surface of the cord in a manner maximizing the tendency for automatic self locking displacement of the slide element by the cord upon longitudinal movement thereof, and including a second tooth which is less sharp and acts to take longitudinal forces exerted by the engaged cord in the ultimate locking condition in a manner protecting the sharper tooth against deformation and damage.Type: GrantFiled: October 17, 1974Date of Patent: April 27, 1976Inventor: Ogden W. Boden
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Patent number: RE32847Abstract: A socket-wedge connection for wedge-type rope socket wherein a multi-part wedge is employed having one part collapsible, finding advantageous use, for example, in the lines employed with excavating equipment.Type: GrantFiled: December 8, 1986Date of Patent: January 31, 1989Assignee: ESCO CorporationInventors: Terry L. Briscoe, Robert L. Van Hoomissen