Abstract: A locking mechanism has a threaded housing mounted in one member of a jack/vehicle assembly. The housing has a locking pin which threadably moves through the housing and extends into a socket in the other member off center from the jack swivel point thus locking the jack in position and providing support for the trailer. The locking pin has a taper at its extension end which provides positive locking pin engagement with the socket and compensates for wear. Extension and retraction of the locking pin is performed by screwing the pin into or out of the housing. The locking pin is retained in the housing through the use of retaining pins thus obstructing disassembly of the locking mechanism and possible loss of the locking pin in the field.

Abstract: A hold-down device comprising first and second supports which are secured to an hydraulic shear or the like against vertical movement. First and second shafts are slidably received by the first and second supports and have a hold-down shoe secured to the lower ends thereof. An elongated member is secured and extends between the upper ends of the first and second supports and has a first tubular member slidably mounted thereon. An inclined member has one end secured to the first shaft and its other end secured to the upper end of an upstanding post which is secured to the hold-down shoe. A second tubular member is slidably mounted on the inclined member and is interconnected to the first tubular member by a web. A handle pivotally connects the post and the web so that movement of the handle in one direction causes the hold-down shoe to be lowered and so that pivotal movement of the handle in a direction opposite to the said one direction will cause the hold-down shoe to be raised.

Abstract: The work tray assembly includes a rectangular PVC board from which a first pair of slots, for the insertion of a splice platform, has been perforated. A second pair of slots, orthogonal to the first, is adapted to accommodate an elongated splice housing. A plurality of arcuately-shaped, flexible plastic clips are mounted in the board for the retention of cladded glass fibers. The board also supports at least one pipelike ring for grasping a vial containing chemicals required to strip and clean the cladded glass fibers. A pair of cable clamps positioned on opposite sides of the board at the extremities of a virtual center line drawn through the first pair of slots positions and supports fiber optic cables brought onto the work tray assembly and across the platform in anticipation of a stripping, cleaning and splicing procedure.

Abstract: A support device for checking and repairing a heavy rotatable object such as a large turbine rotor comprises a pair of self-aligning support structures for rotatably supporting both ends of the shaft of the heavy rotatable object. In each self-aligning support structure, a roller support base rotatably supporting the corresponding end of the shaft of the object with a pair of support rollers is mounted on a base frame by means of a hemispherical support mechanism, and moreover a jig for adjusting the horizontal rotating position of the roller support base around the vertical axis of the hemispherical support mechanism is disposed in the periphery of the base frame, so that the occurrence of the thrust force on the heavy rotatable object as well as the support rollers is completely eliminated.

Abstract: A tool for accurately positioning a flat pack multi-lead component to a PCB during soldering of the leads. The tool has a double function in providing both an accurate location for the board and the component while re-flow soldering takes place. It also provides fool-proof orientation of the component. The basis of the tool is four locating pins which locate at the corners of a square flat pack component but each pin is accurately made and positioned to locate the end leads of the two adjacent sides with a small clearance from the moulded body itself. This takes account of variations in the moulded bodies. One corner of the square body is chamfered and one of the pins is similarly shaped to ensure correct orientation.

Abstract: A vise jaw for attachment to a vise jaw support which includes a first plate for attachment to the vise jaw support in place of the standard vise jaw and having a plurality of vertically elongated openings formed therein and a second plate overlying the first plate and having a plurality of pins extending therefrom and engaging the openings in the first plate, a spring carried by the first plate and engaging at least one pin to urge the second plate to a normal uppermost position and a structure carried by the first plate and operable to engage one of the pins in an opening therein to urge the second plate downwardly when a work piece has been fastened in the vise.

Abstract: The present invention relates to a positioner for positioning a work piece such as a sheet or plate having first guide rails extending in the direction of the X-axis and second guide rails extending in the direction of the Y-axis, first and second carriages respectively movably supported on said first and second guide rails, clamp support members respectively supported by the first and second carriages and being movable in the direction perpendicular to the direction of the movement of the carriages, and clamping devices mounted to each clamp support member and adapted to clamp the work piece.

Abstract: A vertically adjustable carrier for a vise comprises a vertical support tube and a mounting which can be secured to a work bench and which comprises two semicylindrical shells which embrace the support tube and which can be clamped together to fix the support tube in any desired vertical position. The shells extend downwardly from the mounting and define a cavity which accommodates a gas spring which abuts on one end on the support tube and on the other end on the bottom of the composed half shells and exerts an upwardly directed force on the support tube to ease its vertical movement.

Abstract: The invention comprises an improved bean bag structure with a pattern of internal cups and fasteners installed on or in the bag to control its shape against the forces of gravity and in the face of external forces applied thereto. The bag is useful for providing comfort and stabilization for medical and dental patients and more generally for any comfort seeking persons.

Abstract: A table mechanism suitable for use in a tomographic system, such as an X-ray computerized tomograph, has a table movable upwardly and downwardly by a parallel link mechanism. The distance of horizontal movement of a cradle on the table can be automatically compensated for, dependent on an angle of angular movement of the parallel link mechanism, while holding the cradle and a gantry, relatively positioned in a constant relation. A side of the parallel link mechanism is covered with a cover mechanism having a relatively small area.

Abstract: A patient treatment table has a base and a table plate upon which a patient may be positioned. A spine having two bars supports at least one part of the table. The bars are so mounted that they may be shifted towards and away from each other beneath the table plate while keeping the table plate unmoved.

Abstract: A tool which may be used to remove staples having a first and second pivotably connected elements having parallel, spaced-apart members, the second of which is at least partially disposed in the first and has a tongue with a removable concave, bevelled tip and is pivotably connected to a lever and a gripping bar which is parallelpipedic with an S-shape having a striated, convex lower end which is spring biased into contact with each other so that when the tongue is inserted under the head of the staple and a pressure exerted on the lever it causes the means for gripping to pivot until its convex end comes into contact with the head of the staple which is pinched against the tongue and removed without being deformed.

Abstract: A vise for clamping a work piece to a workbench. One jaw of the vise is permanently mounted to the work piece and the other is carried by the threaded shaft. A block member is mounted to the workbench spaced from one jaw a distance at least as great as the dimension of the largest work piece to be clamped between the jaws. A transfer mechanism carried by the block member includes a moveable female member adapted to be moved into and out of engagement with the threaded shaft. In the disengaged position, the shaft is freely slideable in the block member to permit rapid positioning of the shaft. In the engaged position, the shaft can be turned to powerfully clamp the work piece between the jaws.

Abstract: A plate positioning apparatus which determines the position of a plate workpiece for a processing machine by an aligning member which moves in the X-axis direction and an aligning member which moves in the Y-axis direction. The Y-axis aligning member is provided with a movable retainer which retracts toward the Y-axis side when it comes in contact with the X-axis side aligning member and comprises a base part and an extension member which is remountable on the base part. The aligning member for the X-axis is provided on its upper surface with at least one aligning bar which contacts the plate workpiece. The aligning members for both directions of X and Y axes are adapted to be guided by the base frame and their moving strokes are controlled by position detecting switches provided in the base frame, the base frame being closed at its upper side by the cover plate. The respective slits along which the aligning members move are covered with respective movable dust-proof belts.

Abstract: A quick-acting clamping device for clamping tools or workpieces in machine tools comprises a piston which is slidable transversely to the clamping direction and which acts on a toggle mechanism which in turn moves a clamping piece. A pressure plate upon which the toggle mechanism acts is displaceable in the clamping direction in a housing which contains the transverse piston. The fluid under pressure which acts on the transverse piston to activate the toggle mechanism also acts directly on the pressure plate to assist in clamping. Because of the assisting force produced by the pressure plate it is possible for the transverse piston to move the members of the toggle mechanism from starting positions in which they lie at large angles to the clamping direction, that is with a big angular displacement from their dead-center position, in which they initially exert only a small force on the clamping piece.

Abstract: A bench includes a rigid frame and a work board pivotable to and away from the frame. The work board can be brought into a rest position and into a plurality of operating positions and can be in at least two operating positions supported by an arm movably supported on the frame. The arm is pivotable with respect to the frame in a horizontal plane. The arm can carry at its free end a clamping device. The structure of the bench increases a range of clamping a work piece on the bench over the length of the work board.

Abstract: The fence post driving assembly is used with a vehicle having a draw bar and a three point lift arm mechanism having two outer lift arms and a safety link. The assembly is used to drive a fence post into the ground and comprises a first pulley member mounted on the draw bar of the vehicle and a second pulley member mounted at a location intermediate the two outer lift arms of the vehicle. The lift arms are movable between upper and lower working positions. A post engagement member directly contacts the top of the fence post to be driven into the ground. A line such as a cable extends from the post engagement member, around the first and second pulley members and then is anchored at the other end thereof at a location near the draw bar. The post engagement member has a lateral supporting structural configuration effective to prevent bending of a fence post when a driving force is exerted downwardly on the top of the fence post.

Abstract: A portable vacuum holding device is provided for holding a planar wood workpiece in an elevated position above the flat surface of a workbench so that the workpiece can be conveniently worked upon. The device comprises a plastic molded thin-walled hollow body having four sidewalls with an inwardly rim extending about the upper ends thereof defining a rectangular top opening and an outwardly rim extending about the lower ends thereof defining a rectangular bottom opening. A plastic molded thin-walled sleeve is positioned within a circular opening provided on one of the sidewalls of the hollow body with its shoulder secured by an adhesive to provide an airtight seal. Flat sponge-rubber gaskets are provided on the top and bottom rims. The end connector of a flexible hose provided on a portable vacuum pump is adapted to fit within the sleeve with an airtight fit.

Abstract: Disclosed is apparatus for polishing the edges of lenses, such as eyeglass lenses. The apparatus includes a lens holder, a motor for rotating the lens holder, a hand screw mechanism for opening and closing the lens holder, a polishing pad, a motor for rotating the polishing pad, a hand pivot mechanism for pivoting the polishing pad towards and away from the lens holder, a container for polishing abrasive, and a hand screw mechanism for translating the the polishing pad axially to bring different portions of the polishing pad into engagement with lenses gripped by the lens holder.

Abstract: A medical bed including a base, a platform comprising several sections, and adjustment apparatus for adjusting the height, the longitudinal and lateral slope of the platform and the position of the platform sections with respect to each other. Also provided is a base having a main beam transverse to the platform which is mounted on the height position adjustment apparatus. The longitudinal slope adjustment apparatus is also mounted on this beam. The lateral slope adjustment apparatus of the platform is mounted on the longitudinal slope adjustment apparatus and the median section of the platform is mounted on the lateral slope adjustment apparatus.