Abstract: In precision machining, a workpiece can be rapidly located with respect to three mutually perpendicular datum planes by positioning it within both a main machine vise and a supplemental machine vise held within the main machine vise, with the supplemental machine vise being one that has an overall length extending beyond the grip of the main machine vise, ground and polished planar side surfaces adapted to be positioned so that one of them is in contact with the substantially planar ground and polished bed surface of the main machine vise, and a ground and polished substantially planar base surface on the supplemental vise, which is adapted to be abutted, usually but not necessarily in a vertical position, against the working interior face of the fixed jaw of the main machine vise.

Abstract: An adjustable, radiolucent table for radioscopic examination of a medical patient lying thereon, the table including a radiolucent top, floor support structure connected at each end to the top of the support structure having apparatus permitting bidirectional movement of the table top enabling accurate movement of a patient thereon with respect to a radioscopic source, particularly for use in discolosis procedures.

Abstract: A device which can be placed in a door frame, set and adjusted to the precise dimensions of the door frame; then removed and placed on the door, providing a means for indicating the amount and location of planing to be done to a door to insure a precise fit when the door is hung.

Abstract: A self adjusting belt tightening tool for use in adjusting belts on various belt driven automotive components and other related applicatons. The self adjusting belt tightening tool comprises a shaft having a handle on one end and a foot on the other end. A freely swinging grap bar is pivotally mounted on the shaft having an adjustable toe on its end. The toe is adjustable to various positions by means of a removable pin.

Abstract: A breakstem rivet installation tool includes an airflow ejector for ejecting broken-off stems through a rear pipe (23) mounted on the tool housing (11). The ejector is provided by the annular gap (28) between the front-end of the rear pipe (23) and the rear-end part (26) of an extension pipe (25) mounted on the reciprocable stem-pulling draw rod (13). In order to adjust the rate of air-flow through the ejector, the rear pipe (23) is axially adjustable to vary the size of the annular gap (28). To this end, the pipe (23) is screw-threaded into the housing, and its position can be locked by a lock nut (62). The range of adjustment of the ejector flow includes complete shutting off the air flow.

Abstract: A monolithic block, preferably singularly constructed of moderately resiliently compressible and flexible resinous material, has a generally horizontal base surface, two angular ends including a left-wedge of about 30.degree. to 40.degree. and a right-wedge of about 10.degree. to 20.degree., and an upper-medial surface terminating at fulcrums alternatively abuttable against an automobile door pane. Selectable employment of an angular end will wedge sufficient space between the transparent fragile pane and the opaque casing of an automobile door to permit insertion of some conventional locksmith's probing tool for unlocking the automobile door, and without appreciable danger of cracking or damaging the fragile door pane.

Abstract: A forwardly opening parallel vice has a housing (1) which can be fixed to a workbench (3) and which carries the stationary clamping jaw (2) and which is provided with a quadrangular guide structure. Displaceable in the guide structure is a hollow slider which is supported with a plurality of guide surfaces (13) on the guide tracks (11) of the guide structure and which carries the movable clamping jaw (14). Of a screw spindle-nut assembly (15-17) which is provided in the slider (12), one part (15, 16) is mounted rotatably and axially immovably in the slider (12) while the other part (17) is fixed to the housing (1). The slider (12) is of square cross-section and the axis (A) of the screw spindle is arranged precisely at the center of the square cross-section.

Abstract: An armboard mounting assembly including an armboard having a proximate and a distal end, an armboard mount, and a joint for pivotably interconnecting the armboard and the armboard mount for enabling rotation of the armboard about a pivot axis. The rotatable armboard and armboard mount have at least one pair of adjacent sections, and the assembly further includes friction members (or alternate grippers) for providing gripping between said adjacent sections, said friction members being responsive to a downward force on the armboard between the pivot axis and the distal end for increasing gripping between the adjacent sections and inhibiting relative rotation about the pivot axis. Depending on the materials used, the armboard mounting assembly is radiologically translucent, NMR (nuclear magnetic resonance)-compatible, or both.

Abstract: A stand to be used when cleaning a muzzle loading rifle or a muzzle loading shotgun. It consists of a large, stable base with an upright member attached to it, and with a barrel receiving mechanism attached to the top of said upright member. The stand will then securely support the gun barrel in a vertical or near vertical position which greatly facilitates the cleaning operation. The stand is also designed to be easily collapsible to a significantly more compact form for storage.

Abstract: A bracket, support system and method are described for temporarily supporting electrical conductor lines on towers so as to enable repairs or modifications to the suspension system for the conductor lines. The bracket comprises a C-shaped tool having two elongated arms carried by a body portion. The tool retained on and supported by the hinged gate on a tower while tensioning means is connected between the bracket and the electrical conductor lines. When the tensioning means is tightened or shortened, the bracket supports the lines so that repairs or modifications to the suspension system can be made.

Abstract: A jack for installing in a mine a plurality of elongate extensible panels adapted to extend vertically in side-by-side relation from the floor to the roof of a passageway in a mine. Each panel comprises a first elongate member consituting a lower member of the panel and a second elongate member constituting an upper member of the panel, each member having a web and flanges at opposite sides of the web, one of the members having a telescoping sliding fit in the other. The upper member of each panel has a head at its upper end and the lower member of each panel has a foot at its lower end.

Abstract: A transportable X-ray apparatus which is adapted to be transported in a transport vehicle mounted external of the transport vehicle. The transport X-ray apparatus comprises includes an elongated vertical mast mounted on a support base, a carriage slidable mounted on the mast, and a radiation assembly which includes a collimator and a tube unit assembly. The radiation assembly is mounted on the carriage and a support assembly is mounted on a transport vehicle so that the transportable X-ray apparatus extends externally of the transport vehicle.

Abstract: For holding a plurality of different, in shape, workpieces, a holding unit comprises a laminated body with a number of thin identical shaped elongate plates which have one ends forming a workpiece supporting surface, a vibrator unit for moving the elongate plates so as to vary the shape of the workpiece supporting surface to create a new one, and a bias mechanism for clamping the laminated body, so the newly created shape of the workpiece supporting surface is maintained.

Abstract: An apparatus for supporting the walls of appliances and the like during foaming. The apparatus includes a support bed for supporting an appliance or the like during foaming and at least a pair of side support panels which are movable between a retracted position and a foaming position in which they are in supporting engagement with corresponding exterior surfaces of a pair of appliance walls. The apparatus also includes a plug assembly having a plurality of plugs which are selectively positionable for connection with a plug carrier for insertion of the selected plug into the interior of the appliance for foaming and the withdrawal of the plug from the appliance after foaming.

Abstract: An apparatus for making and breaking connections between screw threaded tubular members comprises a jaw carrier. A movable jaw support is pivotally mounted to one end of the jaw carrier while a fixed jaw support is mounted on the other end of the jaw carrier. The fixed jaw support and the jaw carrier each carry a jaw. The centers of the jaws subtend an angle of 90.degree.. The movable jaw support is provided with a jaw which can be advanced towards the other jaws to grip a pipe by the action of a cam on a cam engaging roller mounted on the movable jaw support. The fixed jaw support and the movable jaw support can be interchanged to break and make joints as required.

Abstract: A machine for connecting successive rows of coil springs together into a coil spring assembly. The machine, in preferred form, initially picks up a row of coil springs by inserting a pick up finger into the barrel of each coil and moving the springs onto a support platen. In the course of transporting the coils between pick up and the support platen, the pick up fingers change the spacing of the coils. The springs are then compressed against the support platen to a desired height through use of a reciprocable compression bar. Thereafter, and through use of rotatable transfer fingers on a transfer shaft, the springs are removed from under the compression bar, and are moved into clamping dies. Leading rotary transfer fingers on the transfer shaft first pull the row of springs out from under the compression bar, and trailing rotary fingers then push the springs into the downstream one of upper and lower clamping dies.

Abstract: X-ray cassette having a casing, a fixed plate and a moveable plate within the casing, a film receivable between the plates, bias means including a cam riding surface for biasing the moveable plate toward the fixed plate by means of an actuating cam assembly, the biasing means including a pressure applying strap comprising a plurality of leaf spring elements, having variable cross-section and length, i.e., larger and longer as the leaf spring elements extend toward the center of the cassette. A buckler element may be present in the cassette to buckle the film from the plate.

Abstract: A device comprising a plate (1) for holding workpieces (11) when handled on a machine tool, and a magnetic field excitation unit which is made in the form of at least one magnetic core (3) mounted on a base (2). A bottom portion (4) of each of the cores (3) is encompassed by a direct-current coil winding (6) and is thickened so as to form, together with the top portions (5), a step for the plate (1) to rest upon. The top portion (5) is accommodated in the interior of the plate (1) and is magnetically insulated therefrom with the aid of elements (7) made of a nonmagnetic material. The area of contact of the plate (1) with the core (3) does not exceed the cross-sectional area of the plate (1) confined within the perimeter of the step of the core (3), while a distance (.tau.) between the axes of the cores (3) is determined by the following relationship: ##EQU1## where B is the magnetic induction corresponding to the magnetic saturation of the material of the plate (1);h is the thickness of the plate (1);P.sub.

Abstract: An index table comprising a base, a main plate mounted on the base, a drive wheel mounted for rotation on one side of the main plate about a first axis transverse to the main plate, a work plate on the other side of the main plate rotatably mounted about a second transverse axis spaced from the first transverse axis, and a segment wheel mounted on the one side of said main plate and fixed with relation to the work plate. Circumferentially spaced segment drivers are mounted on the drive wheel and are adapted to engage circumferentially spaced slots on the segment wheel to intermittently drive the segment wheel and in turn the work plate. A yoke plate is mounted on the one side of the main plate for movement radially with respect to the drive wheel and the segment wheel. As the drive wheel rotates, each segment driver engages the yoke plate and moves the yoke plate relative to the segment wheel.

Abstract: An apparatus for use by locksmiths in disassembling the core of an interchangeable core cylinder lock. The apparatus holds the core securely and precisely, enabling a punch to extrude the springs, driver pins and spacer rods of the pin chambers into retaining chambers. The extruded contents of the pin chambers can then be examined and accurately returned to their respective pin chambers.