Abstract: A tilt-up wall panel in raised position is braced with panel brace assemblies, and the panel brace assemblies are braced with a pair of knee brace assemblies for each panel brace assembly, to form a tripod-like structure which eliminates the need for the conventional lateral bracing of the panel brace assemblies. The knee brace assemblies are connected to the wall panel, and for that purpose, two knee brace assemblies extending laterally between a pair of spaced apart panel brace assemblies include a connector common to both and which is connected to the wall panel. A preferred connector includes a base plate adapted to be connected to the wall panel, and a pair of swivel means mounted on one side of the base plate and each forming part of one of the latter two knee brace assemblies.

Abstract: An axial split-pin tumbler-type lock mechanism for a handle lock and of the type including a lock cylinder, a forwardly disposed operating part rotatable in the cylinder, a rearwardly disposed stationary sleeve in the cylinder and adjoining the operating part at a transverse interfacial plane, the operating part including a shaft extending axially through the sleeve, the key-operated spring-pressed axially movable split-pin tumblers carried in bores in the operating part and the sleeve and movable into positions alternately serving to secure the operating part and the sleeve against relative rotation and to free the operating part for rotation to operate the lock mechanism, includes a bolt holder integral with the sleeve part and disposed rearwardly thereof, the holder having a bolt race extending transversely therein, and a lock bolt mounted in the race for transverse sliding movement therein between unlocking and locking positions, the bolt having means cooperating with coupling means on the distal end of t

Abstract: Alarm switch mechanism for an axial split-pin tumbler-type lock includes an electrical contact member disposed in the lock cylinder in the movement paths of lock tumbler elements and adapted for making an electrical contact with an element of any of the tumblers which is moved rearwardly or inwardly a predetermined distance, beyond the distance required for lock-opening purposes, means electrically insulating the contact member from the lock mechanism when no tumbler is in the latter position, and means adapted for making electrical connections to the tumbler elements and the contact member, respectively, whereby they may be connected in an alarm signal circuit closed by making said contact.

Abstract: A remotely operable mechanism for disconnecting an elevated pickup unit component of lifting apparatus from a tilt-up concrete wall slab in raised position following a lifting operation, the pickup unit being connected to the slab by fastening means engaging an insert embedded in the slab wall, includes a manipulating pole serving as an operating handle, and a flexible fastener coupling tool having a proximal end removably connected to one end of the pole and a free distal end opposite thereto, the connected pole end being uppermost on the pole in use. The tool has at its distal end a head releasably engageable with the fastening means and operable for disengaging the same from the insert to thereby release the pickup unit for removal from the wall slab. The tool includes a universal joint extending between and flexibly coupling the head and the proximal end of the tool, whereby the tool may be rotated by rotation of the pole while the pole is angularly disposed relative to the axis of rotation of the head.

Abstract: A plate tumbler-type cylinder lock mechanism includes a plurality of longitudinal internal splines therearound adapted for receiving tumbler ends, means providing at least three internal circumferentially extending tumbler movement paths on the barrel and extending between one spline and another spline which is different for each path, a key plug assembly rotatable in the barrel and including a key plug and a plurality of spring-pressed plate tumblers mounted in the plug, the tumblers being mounted for reciprocal transverse movement upon insertion and withdrawal of a bitted key with opposite tumbler ends projecting alternately from opposite sides of the plug, certain tumblers being adapted to be projected outwardly with their ends in respective registering movement paths when a key is inserted, whereby such ends may travel in the movement paths when the plug is rotated, and means adjacent to at least one end of each movement path adapted for engagement with the tumbler end traveling in the path to prevent tra

Abstract: A level control system involving both an apparatus and a method for a rotary feed hopper of the inverted, open-ended, truncated cone-type, wherein heavy paste-like viscous material which is fed into the large open upper end of the feed hopper is delivered or discharged through the small lower end of the hopper. A load meter in connected relation with the motor which drives the hopper senses the power required to drive the hopper and thus indirectly indicates the quantity of the material in the hopper, and consequently, the height or level of the material. When the load on the motor reaches a predetermined maximum the feed of material to the hopper is discontinued thus preventing overflow. When the load on the motor reaches a predetermined minimum the feed of material into the hopper is resumed.

Abstract: A multi-purpose, extruded metal, joist-like, structural member which is designed for use in connection with concrete formwork, the member being generally of I-beam configuration and having associated therewith novel facilities whereby its effective length may beextended in small increments or it may be spliced to adjacent similar members by utilizing either lumber or novel extruded metal extension members of special design.

Abstract: A lock and key combination includes an axial split-pin tumbler-type lock having a lock cylinder and a barrel assembly secured within the cylinder. The barrel assembly includes a forwardly disposed rotatable operating part and a rearwardly disposed stationary part, which carry in longitudinal bores thereof spring-pressed tumblers having separate driver and follower elements, the driver elements of which extend forwardly out of the bores for engagement with the key. The operating part has a planar front face surrounding a forwardly extending key guide post adapted to resist application of lock-picking torque. The key has a shank provided with a socket adapted for receiving the guide post therein.

Abstract: A tool adapted for renovating or conditioning skis by sharpening the bottom and side surfaces thereof and including an elongated body having a pair of spaced apart shaving strips extending in parallelism along its underneath side and a pair of depending shaving blocks near its opposite ends, the blocks being spaced apart a distance slightly greater than the maximum width of any ski to be renovated by proper use of the tool.

Abstract: An inside articulated and collapsible form adapted for use in the formation of a rectangular concrete corewall and having at its corners novel three-way hinge assemblies including main hinge leaves which are movable between right angular positions wherein the four form sides with which they are associated assume extended positions wherein their panel facings conform to the outline of the inside face of the corewall to be formed by pouring wet concrete around the form, and acute angle positions wherein such form sides assume collapsed positions which are inwardly removed from such outline while the hinge leaves constitute rub rails which guide the collapsed form axially along and within the surrounding hardened concrete corewall during removal of the form the formed corewall.

Abstract: An elongated hollow miter box embodying spaced-apart top and bottom walls has its ends bevelled on a 45.degree. bias. A pair of fixed guide edges on the top wall of the box are parallel to the bevelled ends and serve to guide the usual slide shoe of a portable electric saw over the top wall to effect a 45.degree. cut through either end of a wooden molding or other strip which is positioned and held on the bottom wall of the box. Near one end of the box, a transverse cross cut in the top wall cooperates with an auxiliary guide piece which, when placed on the top wall, presents an edge which guides the saw shoe transversely over the top wall and enables a 90.degree. cut to be made in the wooden strip. An opening in the medial region of the top wall affords finger access to the molding or other wooden strip for steadying purposes during making either a 45.degree. or a 90.degree. cut.

Abstract: Method and means for supporting an elevated concrete wall panel form, wherein a bolt member is removably inserted through a first concrete wall panel to extent horizontally therethrough and project axially from opposite sides thereof, whereby a wall of a form for a second concrete wall panel in superposed relation to the first panel may be seated on one projecting end of the bolt member and the bolt member is rendered accessible from its opposite end, and the seated form wall is secured between the first wall panel and a retaining member projecting laterally from said one end of the bolt member, the retaining member being mounted on the bolt member for disposition permitting withdrawal of the bolt member through the first wall panel and from said opposite end of the bolt member after forming a second wall panel.

Abstract: A method of producing a radial arm-type cutter blade for a rotary meat grinder by way of certain particular successive operations involving stamping a blank to provide a plurality of radially and horizontally extending blank arms, bending the leading side marginal portions of the arms upwardly and outwardly along radial lines between the leading and trailing side edges of the arms, and shearing the outer side edge regions of the outwardly and upwardly bent leading side marginal portions of the arms.

Abstract: A unitary concrete form installation of the flying deck type, preadjustable to selected dimensions and adapted to produce a horizontal building floor slab, comprises a deck formwork including a pair of deck supporting stringers, and scaffolding supporting the stringers and consequently the formwork, the scaffolding including spaced supporting posts disposed in quadrilateral relationship beneath the stringers, each post including elevator screw means for varying the effective length of the post, a shore head mounted on the upper end of each post and releasably secured to a stringer, pairs of cross braces of selected length extending between longitudinally and transversely spaced pairs of posts, and means for releasably securing the cross braces to the posts, thereby providing a form installation which may be transported as a single unit from one location to another for producing floor slabs in successive locations without dismantling the installation between locations and which may be dismantled following use.

Abstract: A multi-purpose, extruded metal, joist-like, structural member which is designed for use in connection with concrete formwork, the member being generally of I-beam configuration and having associated therewith novel facilities whereby it may be nailed, bolted, screw-attached, clamped or otherwise secured to various types of support members (either in the form of lumber or structural metal parts) to the end that it assumes a proper operative position within a concrete wall or slab form installation.

Abstract: A composite concrete wall form unit or assembly consisting of three metal-clad panels connected together in edge-to-edge relationship, the medial panel embodying a plywood facing with a rectangular metal-reinforcing or backing frame, such medial panel constituting a prefabricated fill-in panel for making up an odd dimension which exists between two adjacent outer panels. Such outer panels are of a larger size and likewise are prefabricated in such a manner that they possess a common plywood facing which extends across the plywood facing of the smaller medial panel in face-to-face relationship and thus bridges the odd dimension. A special and novel transition bolt is used for connecting each side rail of the reinforcing frame of the medial panel to the adjacent side rail of the adjacent outer panel.

Abstract: A multi-purpose, extruded metal, joist-like structural member which is designed for use in connection with concrete formwork, the member being generally of I-beam configuration and having associated therewith novel facilities whereby it may be clamped to various types of support members either in the form of lengths of channel members or lengths of I-beams to the end that it assumes a proper operative position within a concrete wall or slab form installation.

Abstract: A preformed molded fiberglass reinforced plastic repair sleeve for use on a marine or other submerged concrete pile and a method of applying the same. The sleeve is provided with at least one vertical seam consisting of inside interlocking reentrant bends which together establish an interlocking tongue and groove joint. The joint is maintained effective by self-tapping screws which are in engaged relation with steel closure clips or strips. The sleeve after assembly is centered about the pile undergoing repair and the continuous space which exists between the sleeve and the pile is filled with a suitable grout which, when hardened, encompasses the internal or inside portions of the joint under pressure and prevents unfastening of the seam.

Abstract: A mixing apparatus adapted for use with granular or semi-solid material and embodying a mixer trough within which are disposed two parallel companion shafts each of which has mounted thereon a linearly straight row of flat slanting parallel mixing blades .Iadd.of interrupted-elliptical shape.Iaddend., the two rows of blades functioning when the shafts are rotated in opposite directions to propel the material forwardly while at the same time exerting thereon a slicing action whereby progressively diminishing masses of the material are tossed from side to side and are repeatedly sliced into smaller increments as they progress along the trough.