Abstract: A safety key designed specifically for use in connection with concrete wall form panels of the "Steel-Ply" or metal-encased type. The key affords an anchor eyelet or hole for receiving the hook which invariably is provided on one end of a safety belt that is worn by a workman who is obliged to work on the concrete wall form at an extremely high or unsafe level or elevation. The key in one form of the invention embodies a shank and an enlarged head, the shank being received in the opposed notches which are formed in the outermost abutting ribs of the mating and abutting frame members or bars of the marginal reinforcing frames of two adjacent wall form panels, and being removably locked in place by a pair of conventional coacting wedge bolts. The enlarged head on the shank defines the aforementioned anchor eyelet or hole.
Abstract: An improvement is provided in a combination of an axial split-pin tumbler-type lock mechanism and a key therefor, wherein the mechanism includes a lock cylinder and an operating part rotatable therein, the operating part including a cylindrical head and a key guide post having a reduced diameter with respect to the head, the head having tumbler bores extending therethrough and disposed radially outwardly of the post, and wherein the key includes a shank having a socket adapted for receiving the post therein, and bittings on the outer periphery of the shank adapted for endwise engagement with tumblers carried by the bores to free the operating part for rotation, such improvement including means providing a longitudinal blind drive groove in the post and facing one of the tumbler bores substantially in a longitudinal plane therewith, and a drive lug on the shank extending radially inwardly from the wall of the socket and substantially in a longitudinal plane with one of the bittings and adjacent thereto, the lu
Abstract: A high speed rotary knife adapted in operation to rotate adjacent to a perforated plate for severing foodstuff projecting from the plate perforations includes a holder component and a blade held thereby. Improved structure is provided for mounting the blade, which includes means defining a hole in the blade extending transversely with respect to a cutting edge on the blade, and an arbor extending into the hole and fitting loosely in the hole for retaining the blade on the holder component while enabling the blade to rock about a transverse axis for automatically leveling the blade with respect to the plate during assembly with the plate and operation. The arbor may be withdrawn from the hole sufficiently to release the blade for replacement thereof.
Abstract: An improved anchor insert adapted to be embedded in a concrete slab for cooperation with a pick-up unit which includes a locking stem having a pair of lift shoulders extending from opposite sides of the stem, comprises a concrete-excluding hollow cage adapted to be emplaced within a form for a concrete slab for insertion of the locking stem and lift shoulders into the cage after pouring the slab, the cage including a pair of spaced apart shoulders on opposite sides of and spaced from the base of the cage, the shoulders being adapted for interengagement with the lift shoulders and also with a pair of anchor rod sections, and a pair of spaced apart anchor rod sections in such engagement, wherein the locking stem of a pick-up unit may be inserted in the cage and rotated for bringing the lift shoulders into lifting engagement with the cage shoulders, and a lifting force when imparted to the locking stem is transmitted to the anchor rod sections for lifting a slab in which the insert is embedded.
Abstract: A sleeve and terminal holder assembly for an axial split-pin tumbler-type switch lock mechanism, such mechanism including a lock cylinder, and an operating part disposed forwardly within the cylinder and rotatable therein, the operating part including a cylindrical head and a shaft having a reduced diameter extending rearwardly therefrom, the head having longitudinal tumbler bores extending therethrough and disposed radially outwardly of the shaft, the assembly comprising a sleeve adapted to be disposed within the cylinder adjacent to the operating part head and with the shaft extending therethrough, the sleeve having longitudinal tumbler bores therein adapted for alignment with the head bores for receiving split-pin tumblers in aligned bores, a holder for electrical terminals spaced rearwardly from the sleeve, and means joining the sleeve to the holder in an assembly adapted for insertion in the cylinder as a unit.
Abstract: A method of performing canine ear or other implantations in order to correct a faulty ear carriage by erection of the ear, utilizing three basic surgical pieces or implements in the form of (1) an elongated cut-forming shank (trocar) having a sharp distal end which is used to incise the ear so that the shank may be pushed along the general plane of the ear between the outer skin and the inner cartilage to create a duct which crosses over or bridges the weakened area of the cartilage, (2) an open-ended sheath (cannula) which is slidable onto the shank in close fitting relation and is adapted to be pushed into the duct as it is being created by the shank to the end that when the shank is withdrawn from the thus inserted sheath the latter remains within the duct and establishes an open-ended tunnel for reception of an ear-rigidifying implant, and (3) a pusher or thrust member which has a blunt forward end and is used to push the implant into the tunnel and consequently into the duct, and to hold it there while t
Abstract: A game card assembly consisting of a plurality of superposed sheets which define a plurality of windows in vertical, horizontal, and diagonal rows, each window being provided with two laterally slidable shutters which are selectively movable back and forth between retracted substantially non-visible positions and predominately visible positions. The shutters of each window possess different distinguishing characteristics so that when either shutter is in its predominately visible position, its window as a whole is given a distinguishing characteristic. The various rows of windows are arranged in checkerboard fashion in order that vertical, horizontal or diagonal alignment of like shutters may form the basis for the playing of a game of the tic-tac-toe variety.
Abstract: A method resulting from proper use of a press-type mechanism by means of which reflective, mirror-forming layers in the form of coatings or conventional mirrors are transferred in pairs from right-angle master surfaces on prism-like blocks to right-angle mirror blanks, and the latter with the mirror-forming layers thereon are then delivered to the optical system of the shell of a binocular or like viewing instrument where they automatically become cemented in place so that the mirror-forming layers assume an accurate porro relationship. The existence of the cementitious material which is used for the cementing operation compensates for discrepancies in manufacturing tolerances of either the mirror blanks or the binocular shell.
Abstract: A press-type mechanism by means of which reflective, mirror-forming layers in the form of coatings or conventional mirrors are transferred in pairs from right-angle master surfaces on prism-like blocks to right-angle mirror blanks, and the latter with the mirror-forming layers thereon are then delivered to the optical system of the shell of a binocular or like viewing instrument where they automatically become cemented in place so that the mirror-forming layers assume an accurate porro relationship. The existence of the epoxy or other cementitious material which is used for the cementing operation compensates for discrepancies in manufacturing tolerances of either the replicated mirror blanks or the binocular shell.
Abstract: A protective cover is provided for a handle lock. The handle lock includes a handle housing, a closure handle, and a lock mechanism. The housing includes a tubular receptacle extending into a door or other closure, and a lateral flange on the receptacle supporting the housing on the outer surface of the closure. The closure handle has a stem received in the receptacle and a grip on the outer end of the stem, the handle being movable inwardly and outwardly with respect to the housing between an inner locked position wherein the grip is adjacent to the flange, and an outer operating position. The lock mechanism is carried by the handle and is cooperative in the locked position with structure on the housing, for locking the handle to the housing. The protective cover includes a mounting plate having an opening receiving the receptacle therethrough, while the flange secures the plate to the closure, and a casing mounted on the plate and continuously surrounding the flange and the grip in the locked position.
Abstract: A concrete slab or panel poured in its horizontal position is fitted with anchor inserts embedded in the concrete that receive releasable pickup units or devices for connection of the panel to a hoist. Each insert has a tubular member of a relatively short length to which a hollow plastic mold is attached that extends into the panel. The mold for the most part remains in the panel and forms a cavity into which part of the pickup device extends. The pickup device has a trunion plate that is placed across the insert opening in the panel. A housing extends through a hole in the trunnion plate into the insert and defines an internal cavity disposed inwardly of the insert. A bore communicates an end of the housing outside the panel with the housing cavity. An axially movable actuator rod or plunger is disposed in the bore and includes a head disposed in the cavity and formed of contiguous cylindrical and conical portions.
November 14, 1977
Date of Patent:
November 7, 1978
James E. Case, Richard L. Ruppert, Lindley Manning
Abstract: An axial split-pin tumbler-type lock mechanism includes a rotatable operating part and a stationary part, which adjoin at an interfacial plane. Tumblers each including a driver element and a follower element are mounted in bores in the parts, which bores meet in alignment at the interfacial plane, and the tumblers are movable back and forth in the bores. When the joints between the tumbler elements coincide with the interfacial plane upon insertion of a key, the operating part may be rotated by means of the key, to accomplish a desired function.
Abstract: Adjustable shoring apparatus includes upper and lower pairs of horizontally extending spaced apart parallel chords, a plurality of struts extending obliquely from the upper chord pair to the lower chord pair and between the chords in each pair in a continuous longitudinal series of strut pairs of like substantially V-shaped configuration having their apices at the lower chord pair, means connecting the upper and lower ends of the struts respectively to the chords of the upper and lower pairs in a truss-like structure adapted for supporting a load on the chords of the upper pair, a plurality of vertically extending elongated legs each having a vertical series of support pin holes which extend transversely therethrough, the legs having upper portions inserted between the chords in the lower pair and lower portions extending below the structure to provide support therefor, the legs being vertically reciprocally movable relative to the structure for adjusting the combined height thereof, the strut pairs in said s
Abstract: A leg brace assembly is employed in combination with adjustable shoring apparatus, such apparatus including a truss-like structure, a vertically extending leg adapted to support the structure and being vertically reciprocally movable relative to the structure for adjusting the combined height thereof, and means for adjustably connecting the leg to the structure at a selected vertical position relative thereto, the leg brace assembly comprising an elongated leg brace member, means for connecting the leg brace member to the structure for swinging movement of the leg brace member about a transverse axis, and means for detachably connecting the leg brace member to the leg at a point spaced below the structure to thereby brace the leg against the structure, whereby the leg brace member may be disconnected from the leg and swung upwardly about said axis to a position wherein the leg brace member is disposed completely above the bottom surface of the structure.
Abstract: Fastening means are employed in a load-bearing structure, such structure including structural members adjacent to each other at two spaced apart points, the fastening means being of the threaded bolt and nut type serving to connect the structural members together and to transfer load forces between the members at both points, and including a bolt and a nut each having a head and an integral shank including a cylindrical bearing portion, such shanks being inserted through bolt holes in the structural members and the shank bearing portions being in load-bearing engagement with the members at respective points.
Abstract: An axial split-pin tumbler-type lock mechanism includes a rotatable operating part and a stationary part, which adjoin at an interfacial plane. Tumblers each including a driver element and a follower element are mounted in bores in the parts. The bores meet in alignment at the interfacial plane, and the tumblers are movable back and forth in the aligned bores. When the joints between the tumbler elements coincide with the interfacial plane upon insertion of a key, the operating part may be rotated by means of the key, to accomplish a desired function.
Abstract: A pallet pulling device for sliding a palletized load from an inaccessible or remote position in a trailer or the like to a position wherein it is readily accessible to a lift truck as a preliminary to be manipulated as desired by the truck. The device is comprised of a wide face L-shaped hook member which is formed of heavy gauge plate metal stock and has at its front end a lateral or right-angle flange which is designed for cooperation with one of the transverse boards of the load-bearing pallet to which the member is applied. The rear end of the member has welded thereto one end of a short pull chain, the individual links of which may be selectively engaged by a suitable hook for pallet-pulling purposes. Said rear end of the member is rounded on an arc of the order of 180.degree. and, by its taper or arcuate configuration, it either deflects or is deflected from foreign objects which may lie in its path when the pallet to which it is applied is pulled.
Abstract: A system for the edge-lifting of a horizontally disposed concrete slab either for transport or tilt-up operations, and embodying components which, after positioning in the slab form, become embedded in the slab after the wet concrete is poured and has become set or hardened. Such components include a horizontal reinforcing bar which extends through the edge region of the slab at a low level and imparts reaction force to a slab-lifting anchor bolt thereabove through the medium of a hanger clip at the time that the slab is lifted. The anchor bolt is fixedly positioned in the slab form and the hanger clip is hung on the anchor bolt and serves to support the reinforcing rod therebeneath in cradle-like fashion preparatory to a concrete-pouring operation for slab-forming purposes. The hanger clip of the system obviates the necessity of creating an upward offset in the reinforcing rod and hanging the rod directly on the anchor bolt at the point of the offset.