Link Separation Patents (Class 59/11)
  • Patent number: 9889482
    Abstract: An automatic round link chain counting and cutting machine is disclosed, comprising a machine base, a first chain box and a second chain box. The machine base is provided with a control mechanism, a drive mechanism, an anti-seizing mechanism, a chain cutting mechanism, a damping guide mechanism and a detection mechanism. The control mechanism comprises a touch panel, a PLC, a relay and a control button. The drive mechanism comprises a servo motor, a reducer and a drive sprocket. The anti-seizing mechanism comprises a first guide wheel, a first rocker arm and a first secured shaft. The chain cutting mechanism comprises a press head, a press bench and a chain cutting mold. The damping guide mechanism comprises a damping plate, a first steel plate and a second steel plate. The detection mechanism comprises a second guide wheel, a second rocker arm and a second secured shaft.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: February 13, 2018
    Assignee: ZHEJIANG SHUANGNIAO MACHINERY CO., LTD.
    Inventors: Xiaming Yu, Yiping Zhang, Yuchao Qiu
  • Patent number: 8621838
    Abstract: The pneumatically-operated master chain link press tool is a press tool that is configured to press on a master link plate onto master link pins of a drive chain. The press tool includes a cylinder inside of which is a pneumatically-driven piston that is spring-loaded in order for the piston to return to a retracted position after pressing the master link plate onto the master link pins. A distal end of the cylinder includes a master link support jig that is partially exposed via a side opening. The master link support jig includes a master link recess that is configured to support a master link body of a drive chain there against. An opposing distal end of the cylinder includes a compressed air inlet and an air release. The compressed air inlet is configured for attachment and use with a compressed air hose.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: January 7, 2014
    Inventor: George W. Hill
  • Patent number: 8544253
    Abstract: A device (10) for the on-site fitting and extraction of pivot pins of large chain links, which include an alternating sequence of external links and internal links, each internal link including two parallel side pieces pierced at their ends, joined together at the ends by a tubular spacer, and articulated at the ends of the side pieces of the internal links on the pierced ends of the parallel side pieces of two consecutive external links via pivot pins, of the type which includes at least one cylinder (44) which is intended to selectively stress a pivot pin or a side piece of an external link in order to insert the pin or extract the pin, characterized in that it includes a pair of portable cylinder supports (46), supporting two pivoting cylinders (44), synchronized in displacement, and a control device (48) common to both cylinders (44).
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: October 1, 2013
    Inventor: Jean Sevrette
  • Patent number: 8424139
    Abstract: A chain link remover includes a seat having an opening formed between an anvil and a block for receiving a chain, the block includes a screw hole for engaging with a threaded shaft which includes a link ejector rod for engaging with a chain link pin of the chain and for removing the chain link pin from the chain, and a positioner is extended from one plate of a housing and located above the anvil for engaging with the chain and for stably retaining the chain in the opening of the seat. Two hooks are pivotally attached to the housing for engaging with the chain and for stably anchoring the chain to the housing.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: April 23, 2013
    Assignee: Beto Engineering & Marketing Co., Ltd.
    Inventor: Lo Pin Wang
  • Patent number: 8166744
    Abstract: An articulating pin for the links of a bicycle chain, of the type capable to be inserted in aligned holes of an outer link and of the corresponding inner link of the chain, to hinge the links to one another, has a central portion and a distal portion. The distal end is elastically deformable for the insertion through the holes.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: May 1, 2012
    Assignee: Campagnolo S.R.L.
    Inventors: Maurizio Valle, Leopoldo Lazzarin
  • Patent number: 8136338
    Abstract: A device for assembling and disassembling a bicycle chain comprises a main body, an actuating member, a rod member, a pulling member, and an elastic plate. The rod member, the pulling member and the elastic plate are connected to one another to guide a positioning member to be assembled into the assembling holes in a balance manner, so that the device for assembling and disassembling a bicycle chain makes the assembly of the chain more convenient and simple.
    Type: Grant
    Filed: September 12, 2009
    Date of Patent: March 20, 2012
    Assignee: Super B Precision Tools Co., Ltd.
    Inventor: Hung-Chen Huang
  • Patent number: 8117819
    Abstract: A chain repairing tool, which includes a tool body and a PBR block, which is configured for pressing side plates of chain links, for breaking chain links and for riveting chain links as the PBR block is variously oriented within the tool body of the chain repairing tool. Also, a chain repairing tool, having a tool body, a body bolt, which is threadably received by the tool body, and a breaking pin where the body bolt includes a tapered passage, which guides the breaking pin. Also, the breaking pin includes a domed head. Also, a PBR block, which is configured for pressing side plates of chain links, for breaking chain links and for riveting chain links as said PBR block is variously oriented, in conjunction with a chain repairing tool.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: February 21, 2012
    Assignee: Motion Pro, Inc.
    Inventor: Steven Richard Scott
  • Patent number: 7797920
    Abstract: A drive chain includes two end chain components and a connecting plate. Each of the end chain components has a pin hole and a connecting pin. The connecting pin includes a main segment inserted into the pin hole and having a diameter, an anchoring end segment axially spaced apart from the main segment and having a diameter, and a constricted neck extending between the main segment and the anchoring end segment. The connecting plate has two spaced anchoring holes each having a diameter that is originally smaller than the diameter of the main segment and larger than the diameter of the anchoring end segment. The main segment of the connecting pin is force-fitted in a corresponding one of the anchoring holes so that the end chain components are joined to each other. A tool device to assemble or disassemble the drive chain is also disclosed.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: September 21, 2010
    Assignee: AMC Chain Industrial Co., Ltd.
    Inventor: Tzu-Feng Wang
  • Patent number: 7757473
    Abstract: Manufacture method and manufacturing apparatus for power transmission chain according to the invention are adapted to accomplish exact positioning of pin members and link plates. This permits the pin members to be positively press-inserted into pin holes of the link plates and hence, the fabrication of the power transmission chain is facilitated.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: July 20, 2010
    Assignee: Jtekt Corporation
    Inventor: Masaru Fuse
  • Patent number: 7721520
    Abstract: A highly durable and compact chain disconnecting and connecting tool that may be used for a chain at a sprocket part for winding the chain and that can receive an operational load at two places is provided. A first block has an engaged pressure actuating member coupling member. A second block is coupled with the first block turnably by the coupling member and has a cutout on one side and a through hole on another side of the block. The tool is attached to the chain from an opening while positioned engagement with an edge projection of a tap bolt that is screwed with the first block and with the cutout or the through hole.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 25, 2010
    Assignee: Daido Kogyo Co., Ltd.
    Inventors: Akiyoshi Komeya, Susumu Hirasawa
  • Patent number: 7634899
    Abstract: A tool for the quick and easy installation and tensioning of track assemblies on skid steer loaders is arranged to properly and positively align and draw the free ends of the track together and hold the track ends in proper, aligned condition squared relative to each other for installation of the track link members and tensioning adjustment of the track as may be desired for proper operation of the vehicle. Additionally, this tool can be used to dismount the track by removing the pressure from the pivot bolts, allowing the operator to easily remove the bolts and then gently let the ends of the tracks apart.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: December 22, 2009
    Inventor: Arnold A. Otter
  • Publication number: 20090255229
    Abstract: There is provided a highly durable and compact chain disconnecting and connecting tool that may be used for a chain at a sprocket part for winding the chain and that can receive an operational load at two places. A first block has a pressure actuating member screwed therewith and a coupling member fixed thereto. A second block is coupled with the first block turnably by the coupling member and has a closed-end hole on one side and a through hole on another side of the block. The tool is attached to the chain from an opening while positioned and engaging an edge projection of a tap bolt that is screwed with the first block with the closed-end hole or the through hole.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 15, 2009
    Applicant: DAIDO KOGYO CO., LTD.
    Inventors: Akiyoshi Komeya, Susumu Hirasawa
  • Patent number: 7562518
    Abstract: A fluid activated connecting pin removal tool, includes a body defining a first cavity adapted to receive a portion of a work piece and a second cavity positioned substantially perpendicular to and intersecting the first cavity. When a fluid activated cylinder is mounted to the body in a first orientation relative to the second cavity, expansion of the fluid activated cylinder results in a piston extending from the cylinder into the first cavity in which the work piece is positioned to exert a force upon a connecting pin connecting portions of the work piece. When the fluid activated cylinder is mounted to the body in a second orientation relative to the second cavity, the secondary cavity serves as a storage compartment for the fluid activated cylinder.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: July 21, 2009
    Assignee: Barlan Enterprises Inc.
    Inventors: Michael K. Daniels, Herb R. Gehrling
  • Patent number: 7497071
    Abstract: A chain puller includes an elongate housing having a C-shaped channel extending between the first end and the second end of the housing. First and second chain engaging members are provided. Each has a lower portion and an upper portion. The upper portion has a chain engaging face to be inserted between links of a chain. The lower portion of the first chain engaging member is fixedly attached toward the first end of the housing, and the lower portion of the second chain engaging member is slideably engaged within the C-shaped channel toward the second end of the housing. A screw actuator has a nut fixedly attached toward the second end of the housing relative to the second chain engaging member and a screw member engaged within the nut. The first end of the screw member has an engagement face that engages the second chain engaging member. The second end has means for rotating the screw member to cause the engagement face to advance or retract.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: March 3, 2009
    Inventor: Richard Tillberg
  • Patent number: 7430849
    Abstract: A conveyor chain pin remover includes a gear case with an attached handle, an actuating lever, a ratchet mechanism engaged by the actuating lever and first and second aligned passthrough openings. A retaining bar, is attached adjacent a first end to the gear case and has a chain retaining fixture located adjacent a second end. The chain retaining fixture has a barrier portion located orthogonally to the retaining bar and has a central aperture located in the barrier portion. A ram has a pin punch portion located at a first end and a rack portion extending substantially from a second end toward the pin punch portion. The rack portion fits slidably through the first and second aligned passthrough openings with teeth of the rack portion engaging the ratchet mechanism. The pin punch portion fits slidably through the central aperture and is smaller in diameter than pins of a roller chain.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: October 7, 2008
    Assignee: Practical Inventions, LLC
    Inventors: Stephen Coutts, Sanford Fitelson
  • Patent number: 7409817
    Abstract: A bicycle chain splitter comprises a splitter body, an actuating member and a guiding member. The splitter body includes a guiding hole and a through hole that are aligned with each other. Between the guiding hole and the through hole is formed an assembly space for holding the chain. The actuating member is forced to move in the guiding hole of the splitter body. The guiding member is pre-inserted into the through hole of the splitter body and the assembly holes of the chain. The positioning pin is pushed by the actuating member into the assembly holes of the chain under the guidance of the guiding member.
    Type: Grant
    Filed: October 7, 2007
    Date of Patent: August 12, 2008
    Inventor: Hung-Chen Huang
  • Patent number: 7299514
    Abstract: The invention relates to a foldable tool set installed with a chain repair tool. The tool set has a housing and foldaway tools pivoted on the housing. The chain repair tool comprises a main body and an ejector pin screwed on top of the main body. The chain repair tool is pivoted on the tool set and can be folded within the tool set or lifted outward. In addition, an arm is included and one end of it is pivoted on one side of the chain repair tool to control movement of the chain repair tool. The chain repair tool and the arm are folded together in the housing. Accordingly, operation of disassembling and reassembling of chains can be conducted with this tool set without any other required tools.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: November 27, 2007
    Inventor: Shu Te Wu
  • Publication number: 20070193247
    Abstract: A fluid activated connecting pin removal tool, includes a body defining a first cavity adapted to receive a portion of a work piece and a second cavity positioned substantially perpendicular to and intersecting the first cavity. When a fluid activated cylinder is mounted to the body in a first orientation relative to the second cavity, expansion of the fluid activated cylinder results in a piston extending from the cylinder into the first cavity in which the work piece is positioned to exert a force upon a connecting pin connecting portions of the work piece. When the fluid activated cylinder is mounted to the body in a second orientation relative to the second cavity, the secondary cavity serves as a storage compartment for the fluid activated cylinder.
    Type: Application
    Filed: January 23, 2007
    Publication date: August 23, 2007
    Inventors: Michael K. Daniels, Herb R. Gehrling
  • Patent number: 7254935
    Abstract: A ratchet arrangement of a chain splitter comprises a rotating rod integrally formed at a side of the ratchet wrench, and the rotating rod is to be screwed in a threaded hole of a splitter body. The ratchet wrench can reduce the required revolving space and the whole packing of the chain splitter, thus saving the required space when transporting the packed chain splitter.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: August 14, 2007
    Inventor: Hong-Jhen Huang
  • Patent number: 7216472
    Abstract: A guiding shaft structure for a chain connector includes a black shaft and a guiding bolt. The black shaft comprises a passage with a threaded section therein and a first protruding ring, a second protruding ring and a third protruding ring on an outer surface thereof. The guiding bolt comprises an insertion section and a guiding section. The insertion section comprises grooves, a circular flange and a guiding surface. The guiding section comprises a threaded portion. The black shaft and the guiding bolt are secured with each other to form a one piece and to provide a secure connection.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: May 15, 2007
    Inventor: Wen-pin Wang
  • Patent number: 7100353
    Abstract: A portable disassembly tool is provided to disassemble a track link assembly from a machine by removing opposed track links from the track link assembly. The portable disassembly tool includes first and second members that are tightly secured to the track link to be removed by a plurality of fasteners. The second member has clearance holes therein to freely receive the ends of the associated track pin assemblies. A third member having spacer members extending therefrom is disposed adjacent to the second member with the spacer members extending into the respective clearance holes into contact with the ends of the track pin assemblies and secured to the second member by a second plurality of fasteners. By alternately tightening the plurality of fasteners, the track link is pulled from the associated track pin assemblies. During the removal of the track link, binding in any direction is overcome.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: September 5, 2006
    Assignee: Caterpillar Inc.
    Inventor: Roy L. Maguire
  • Patent number: 7082747
    Abstract: A chain connecting pin extracting apparatus comprises a main body; a pin extractor support supported by the main body; and a pin extractor supported by the pin extractor support for movement in a direction of a pin extractor axis defined by the pin extractor. The pin extractor comprises a force receiving component adapted to receive a connecting pin extracting force; a tip adapted to apply the connecting pin extracting force to the connecting pin, wherein the tip is dimensioned to extend into a link pin opening in a first direction along the pin extractor axis; and a residue moving surface disposed between the force receiving component and the tip and facing at least in part in a second direction opposite the first direction.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: August 1, 2006
    Assignee: Shimano, Inc.
    Inventors: Toshinari Oishi, Kenji Kamada
  • Patent number: 6988288
    Abstract: A chain link remover includes a base having an opening formed by an anvil and having a screw hole for threading with a threaded shaft which has a link ejector rod to remove the chain link pin from the chain. A support device is disposed in the base to support the chain in the opening of the base, and to retain the chain between the anvil and the threaded shaft, and thus to allow the chain link pin to be easily disengaged or removed from the chain without holding by the users. The support device includes two pawls to engage with and to support the chain between the anvil and the threaded shaft, with such as resiliences.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: January 24, 2006
    Inventor: Lopin Wang
  • Patent number: 6810654
    Abstract: The invention relates to a chain assembly method for joining a single or multiple link-plate chain having alternating, uncranked outer and inner chain links using prefabricated inner chain links in particular comprising two parallel link plates and parallel hollow pins connecting the latter. This assembly method is to be simplified as compared with production methods used hitherto for link plate chains.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: November 2, 2004
    Assignee: Joh. Winklhofer & Sohne GmbH und Co. KG
    Inventor: Murat Bekiroglu
  • Patent number: 6490853
    Abstract: A method for joining a plate chain link is to be improved, in which at least one plate is connected to at least one bolt by way of a pressing and aligning process. This is achieved by the measures that the bolt is centered in relation to a main chain axis by the simultaneous active application of symmetrical clamping forces to the faces and the least one plate is pushed by a joining lift relative to the bolt into a position symmetrical to the main chain axis. Furthermore, the invention relates to a device for carrying out the method.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: December 10, 2002
    Assignee: Joh. Winklhofer & Söhne GmbH & Co. KG.
    Inventors: Gerhard Winklhofer, Dag Heinrich, Thomas Fink
  • Patent number: 6453657
    Abstract: A portable hydraulic press with two opposing plates connected by bolts can be clamped on a conveyor chain that has interference-fit connecting pins between pairs of rectangular plates forming the chain links to assemble or disassemble the chain. Once the press is clamped in place, a hydraulic cylinder of the press is then actuated to force the connecting pin in or out of the chain. If the pin is being pushed out, it passes through a hole in a back plate of the press in order to disassemble or break the chain.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: September 24, 2002
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventor: Anthony Allan Teravainen
  • Patent number: 6032455
    Abstract: A device to hold roller chain is disclosed for holding roller chain in position for repair, maintenance, and the like. The device includes first and second jaws which are generally parallel. Each jaw has first and second ends, inner and outer faces, and two side faces. Each of the jaws has a primary gripping recess in the inner face near one end to grip the roller chain. Each jaw may also have a secondary gripping recess at the opposite end of the jaw. First and second shank members extend between the jaws and through at least one of the jaws. Each shank member has a cylindrical shank with external threads. The device has two shank channels, with each shank channel extending from the inner to the outer face of one of the jaws. The shanks pass through the shank channels. A pair of nut members engage the threads of the shanks adjacent to the outer faces. A coil spring surrounds each shank between the first and second jaws and biases the jaws away from each other.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: March 7, 2000
    Inventor: Richard Reimann
  • Patent number: 5787701
    Abstract: The invention hereof provides, in a single device, means for accepting and breaking chains of different sizes, from small chains to large, industrial type chains, the device accepting a plurality of drive blocks with outwardly projecting parallel ejection pins of differing sizes and/or spacings to accommodate to chains of different sizes, and accepting a plurality of chain nests of different sizes to receive the pins of a cooperant drive block while holding the chains of a cooperant size thereby permitting the ejection of the roller pins from the chain whereby the chain is "broken" or disassembled.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: August 4, 1998
    Assignee: Patton Tool Co., Inc.
    Inventor: Frank A. Small
  • Patent number: 5752377
    Abstract: The tool functions as a vise and comprises a ratcheted gear train within a housing, first and second longitudinally-opposed, laterally-spaced upwardly-extending fingers of crooks facing each other, the first crook being fixedly secured to the housing, the second crook being tethered to one extremity of a traveling cable driven longitudinally through its connection to the gear train, the first crook being positionable for bearing engagement against a selected section of the chain, the second crook being positionable for bearing against another selected section of the chain, thereby tensioning the portion of the chain not between the crooks and effectively relaxing the portion of the chain between the crooks.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: May 19, 1998
    Assignee: Patton Tool Co., Inc.
    Inventor: Frank A. Small
  • Patent number: 5463862
    Abstract: A breaker for roller chains includes a rigid frame with a chain receiving opening. A clamp member with an open pin receiving bore is mounted to the rigid frame on one side of the opening for adjustment along an axis. A punch block with a central bore is releasably mounted to the rigid frame on an opposite side of the opening. The punch block is located by a positioner with its central bore substantially coaxial with the axis. The punch block and clamp member include chain link engaging surfaces positioned relative to the opening to releasably clamp a roller chain with a pin thereof aligned with the axis and with the link engaging surfaces in clamping engagement with chain side plates adjacent the pin. A punch pin is slidably mounted within the punch block central bore, with a pin driving end movable through the opening and receivable axially within the pin receiving bore of the clamp member.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: November 7, 1995
    Inventor: Theodore E. Reisenauer
  • Patent number: 5222354
    Abstract: A tool for in-place removal and replacement of large roller-type links of heavy duty chains adapted for use in industrial settings. The tool includes a detachable back support, a front support and a drive mechanism. The front support includes a plurality of holding bolts. The drive mechanism is secured to the front support and includes a crossbar and a plurality of drive screws. To remove a side plate of a link, the drive screws are aligned over the ends of the link pins and the back and front supports are secured to each other around the link with the holding bolts. The drive screws then are rotated to force the side plate of the link from the link pins. To reassemble the link, the crossbar is aligned with the side plate and the back and front supports are secured to each other around the link with the holding bolts. Tightening the holding bolts moves the crossbar to apply even pressure against the side plate thereby forcing the side plate into position in the link.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: June 29, 1993
    Inventor: Larry A. Rothstein
  • Patent number: 5214909
    Abstract: A clamp mechanism forces a track chain to seat properly and completely in a holding fixture prior to dis-assembly of the track chain. The clamp mechanism has a hold-down bar, for engaging the track chain, a linkage assembly connected to the hold-down bar, and a fluid powered cylinder for moving the hold-down bar into engagement with the track chain. Track chains being dis-assembled within a track press do not always seat properly in a holding fixture, which can cause damage to the track press tooling or the holding fixtures. The subject clamp mechanism seats the track chain fully into the holding fixture and maintains a force on the track chain during dis-assembly.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: June 1, 1993
    Assignee: Caterpillar Inc.
    Inventors: Richard E. Livesay, Owen R. Thompson
  • Patent number: 5214907
    Abstract: A tool mounting arrangement for a track press includes a bracket assembly for lateral and vertical adjustment of the tool mounting to compensate for variations in the spacing of the track components due to different amounts of wear. The bracket assembly includes a tool mounting plate which is connected to a reaction bar by an adjustment plate and a pair of brackets. A pair of threaded shafts penetrate the brackets and bear against the adjustment plate for moving the tool mounting plate vertically. A threaded rod is connected to the reaction bar and an adjustment wheel on the rod is in engagement with the adjustment plate for moving the tool mounting plate laterally. A pair of spring loaded apparatus maintain a preselected downwardly directed force on the bracket assembly.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: June 1, 1993
    Assignee: Caterpillar Inc.
    Inventors: Richard E. Livesay, Owen R. Thompson
  • Patent number: 5197273
    Abstract: A fluid control system for a track press has first and second main fluid work circuits and a plurality of auxiliary fluid work circuits. The first and second work circuits are substantially similar and each has a pair of dual acting slave cylinders and one single acting master cylinder. The cylinder rod of each master cylinder is connected to the cylinder rods of the respective slave cylinders through a reaction bar. Each of the first and second work circuits has a fluid reservoir and a high flow capacity control valve in direct communication with a respective fluid reservoir and a respective master cylinder. During fast forward and reverse of the slave cylinders, the piston and rod of each master cylinder is advanced or retracted due to the interconnection with the reaction bar. During fast forward, fluid is drawn from the reservoirs at a fast rate to rapidly fill the large slave cylinders. This provides extremely fast cycle times.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: March 30, 1993
    Assignee: Caterpillar Inc.
    Inventors: Richard E. Livesay, Owen R. Thompson
  • Patent number: 5193336
    Abstract: A tool for removing a clip member from a master link in a chain member. The tool comprises a first member pivotally secured to a second member with the first member including a first plier jaw having a structure defining a pair of first arcuate recesses and with the second member including a second plier jaw having a structure defining a pair of second arcuate recesses. A method for removing a clip member from a master link in a chain member comprising providing the tool; providing a chain member comprising a master link with a clip member; and grasping the clip member with the first and second plier jaws of the tool.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: March 16, 1993
    Inventor: John W. King
  • Patent number: 4870739
    Abstract: This invention discloses an apparatus for removing pins from connecting link boat hardware. After connecting links are used to secure anchors or buoyes to chains, the links often become corroded and it is difficult or impossible to remove the connecting link pin on order to release the anchor or buoy. The invention is a portable apparatus which can be attached to a connecting link in a position of alignment with the connecting link pin. A plunger is then activated so as to force the pin out of the connecting link so that the connecting link can be disassembled.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: October 3, 1989
    Inventor: Raymon E. Richards
  • Patent number: 4766720
    Abstract: Conventional apparatus for pressing the track links onto pin and bushings of the track chain during assembly thereof experience difficulty in aligning the links with the pin and bushings because the presses become somewhat loose and out of alignment. The subject apparatus overcomes this problem by providing a self aligning feature in the link locating and driving means. The link locating and driving member is mounted on the pressure plate that is attached to the press rams. A support plate is guided from the pressure plate by guides and resilient members that allow the support plate to shift with respect to the pressure plate with the aid of tapered noses on plungers supported by pressure barrels as the rams move forwardly to press the links onto the pin and bushings held in a fixture. In this manner any misalignment is accounted for by the self-aligning feature of the locating and driving members.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: August 30, 1988
    Assignee: Caterpillar Inc.
    Inventor: Dean W. Martin
  • Patent number: 4531355
    Abstract: A jig is disclosed for assembling a track chain which includes pin adapters and bushing adapters attached detachably to tool bars. Each adapter is provided with an outer cylinder, an inner cylinder received slidably in the outer cylinder, a biasing device held within the outer cylinder for biasing the fore end of said inner cylinder so that it protrudes outwardly from the fore end opening of the outer cylinder, and a stop attached to the outer cylinder for preventing the inner cylinder from protruding excessively out of the outer cylinder. Circular recesses are formed in the inner peripheral surface of the fore end opening of the outer cylinder.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: July 30, 1985
    Assignee: Maruma Jyusharyo Kabushikigaisha
    Inventor: Hirotomo Numakura
  • Patent number: 4441389
    Abstract: A practice of severing a length of chain wherein the chain is supported and an interior link of the chain is severed at the link portion which passes through the central opening of an immediately adjacent link.
    Type: Grant
    Filed: August 4, 1981
    Date of Patent: April 10, 1984
    Assignee: Avon Products Inc.
    Inventors: George W. Graham, Richard P. McCally
  • Patent number: 4365401
    Abstract: A hydraulic rivet tool having a pair of opposing supports on a frame one of which holds an anvil and the other supporting a hydraulic cylinder. A hollow sleeve is extensible from the cylinder and carries a guide to clamp the workpiece. Contained within the sleeve for relative movement therewith is a dual purpose piston carrying a rivet engaging member. A spring is interconnected between the sleeve and the piston to restrict their relative motion until the sleeve guide has clamped the workpiece. Hydraulic fluid under pressure delivered to the cylinder first causes the piston and sleeve to extend from the hydraulic cylinder and causes the sleeve to clamp the workpiece. The piston then, overcoming the spring restricting the relative motion between it and the sleeve, continues its movement to perform work on the rivet.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: December 28, 1982
    Assignee: Owatonna Tool Company
    Inventor: Robert S. Ogren
  • Patent number: 4282707
    Abstract: A tool for removal and reassembly of selective links of a chain includes separate clamping means for holding different types of chains and provides a tapered link engaging surface against which a selected link to be removed can be driven to separate the same from the chain. Indicators are also provided to enable a chain having removable pins to be aligned for the easy removal of the pins and the separation or reassembly of the links thereof.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: August 11, 1981
    Inventor: Robert O. Fox
  • Patent number: 4235073
    Abstract: A chain breaker has an interchangeable turret anvil plate mounted on an upper surface of a lower jaw. The lower jaw has a slotted upper portion which extends partially over the anvil plate. An upper jaw has a reduced lower portion which fits within the slotted upper portion of the lower jaw. A retainer pin extends through the slotted portion and holds the jaws together. Near the pin a retaining portion of the upper jaw extends over the anvil plate and the threaded retainer and prevents accidental dislodgement of the anvil plate and threaded retainer. An outer surface of the retaining portion abuts a chain workpiece. A pin connects two handles on a line with the jaw pivot pin, and pins connect individual handles and the jaws on a line which intersects the first line close to the handle pin. A forcer screw in an outer end of the upper jaw carries a breaker tip at its lower end which is positioned just above a cantilevered portion of the anvil plate.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: November 25, 1980
    Assignee: Incom International Inc.
    Inventor: Wayne R. Tracy
  • Patent number: 4157009
    Abstract: A tool bar assembly for use in track presses which includes a tool bar, tool holders, and bushing and pin tools adapted to be removably secured to said tool holders.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: June 5, 1979
    Assignee: Wolff Manufacturing Company
    Inventor: Harvey W. Janssen
  • Patent number: 4148109
    Abstract: A tool for cleaning slivers and the like from a surface of a workpiece, such as the bushing of a chain drive track. In one form, the tool includes structure defining a manifold having an opening and arranged to be abutted to the workpiece with the opening juxtaposed to the workpiece surface on which slivers and the like may be deposited. Fluid, such as air, under pessure is delivered into the manifold and directed substantially directly against the juxtaposed workpiece surface to entrain the slivers and other foreign matter on the prelubricated surfaces. A suction is applied to the manifold for sucking the excess fluid and the entrained slivers and other material outwardly from the manifold. In another form, the manifold is movable against complementary wall surfaces to define a chamber in which the workpiece is disposed. Movement of the manifold to and from the wall surface may be effected by suitable powered mechanism.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: April 10, 1979
    Assignee: Caterpillar Tractor Co.
    Inventor: Roy D. Morley
  • Patent number: 4007584
    Abstract: An adjustable pitch tool bar assembly for use in track presses employed in the assembly and disassembly of drive chains for ground engaging shoes of track laying tractors. The adjustable pitch tool bar assembly includes a tool bar track for carrying a pair of tool blocks which mount bushing and pin tools and slide on the tool bar track to accommodate different track pitches.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: February 15, 1977
    Inventor: William H. Wolff
  • Patent number: 3939648
    Abstract: A multi-pitch tool bar for receiving bushing and pin tools used in track presses employed in the assembly and disassembly of drive chains for the ground engaging shoes of track laying tractors.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: February 24, 1976
    Assignee: Wolff Manufacturing Company
    Inventor: Laurie J. Cullen