Abstract: A lifting and positioning apparatus for construction panels such as sheet rock, the apparatus including at least one lifting standard having a base, a fixed strut supported vertically from the base, a movable strut supported from the fixed strut, a guide and latch arrangement for retaining the struts in generally parallel relationship, a handle on the movable strut for elevating same in relation to the fixed strut and the base, and a panel engaging rail supported on the movable strut. The panel engaging rail may be supported at the top of the movable strut, in which case, two of the standards are used to elevate and position a panel against the underside of a ceiling framework. In an alternative embodiment, only one standard is used and includes a cleat-like rail at the bottom of the movable strut to engage the lower edge of a panel to be elevated along a vertical wall framework.

Abstract: A semi-trailer having at its front end at least one landing leg (8) which may be supported in its operative position by a strut (12) which is mounted slidably and pivotally to the chassis by means of a mounting (16) and which leg(s) is(are) raisable by a power unit; the strut(s) (12) may be locked by pin or pins (22) engaging in holes (29, 52) in the strut and the pin(s) latched in at least a partially disengaged position for movement of the strut between the operative position of the leg and an inoperative position, the pin(s) being unlatched to engage in a hole (29, 52) by movement of the strut in the mounting.

Abstract: The invention relates to a child's support assembly comprising a seat and a support stand.The support stand is a base with a large bottom part and a small top part which is hollowed out so as to receive a projecting part of the seat. The connection between the seat and the support stand is a removable one and is made by means of a locking finger controlled by a pedal working against a spring.The invention is applied in the production of articles for child's care.

Abstract: A bath seat for babies which includes a seat having at least one hole formed on a central portion of a curved upper surface thereof and groove portions formed at a central portion of opposite sides of the seat, a first and second catch member disposed within the groove portions, a base member disposed beneath the seat, a plurality of supporting plates connected to the base and including idle-holes formed therein, a plurality of support legs connected to the seat and a first and second supporting rod connected to said supporting legs, adjustably positioned within the idle-holes of the supporting plates and connected to end portions of the first and second catch members, respectively, for adjustment of positioning within the idle-holes of the supporting plates and corresponding positioning of said seat.

Abstract: The disclosure relates to a latch mechanism for controlling reclining movement of a vehicle seat back. A pair of latches are engageable with an articulated slidable link to latch the seat at a desired reclining position. The latches are manually movable to an unlatched condition relative to the link at which time the link is movable therebetween.

Abstract: A collapsible leg structure for one end of a bench, table, work surface, or the like, including a T-shaped brace rod having one end of its stem pivotally connected to the underside of the bench and its other end lockingly engaged with the depending end portion of the legs. A strut, pivotally connected with the stem of the brace rod, is slidably engaged with a track bracket secured to the undersurface of the bench to limit downward movement of the brace rod with respect to the bench. Links connecting the legs to the strut collapse the legs to a folded position under the bench when the brace rod is manually released from the legs and moved toward the underside of the bench.

Abstract: A store display fixture for hanging garments and the like is disclosed hag at least one hangrod affixed to at least one downwardly extending rectangular or round or square tube in telescopic engagement with another rectangular tube. The inner tube includes a compression spring-biased plunger projecting therefrom and through one of a column of openings vertically spaced apart along the outer tube. The end of the plunger is beveled to form both an upward and a downward inclined surface such that the tubes are locked into place against collapse during use but may be extended by merely pulling the downwardly extending tube upward. The tubes are retractable by manually depressing the plunger and allowing the downwardly extending tube to slide into a lower position.

Abstract: A chair locking device engageable with a movable member for retaining same in a selected position relative to a stationary support member. The locking device includes a barrel mounted on the stationary member and a plunger within the barrel having an eccentrically mounted pawl on the engagement end thereof movable into and out of a selected one of a plurality of sockets in the movable member in response to movement of a cam follower on the plunger along a cam surface of the barrel. The pawl is mounted on the plunger so that the pawl rotates into a downward position relative to the plunger axis when fully extended into the selected socket. Movement of the cam follower is effected by a handle in engagement with the cam follower and cooperating portions on the cam and lock structure retain the plunger at an end of its travel until relative movement is positively effected by rotating the handle.

Abstract: A hollow seat post has a seat attached at one end while the opposite end is split defining an aligning pin receiving groove. One portion of the split end is provided with longitudinally spaced pin receiving holes. A coil spring is inserted inside a frame seat post. A small pin extending through the bottom of the frame seat post serves as a stop for the coil spring. A second pin extends through the upper portion of the frame seat post and aligns the seat when the seat post is inserted inside the frame seat post with the second pin in the groove in the seat post. A lever actuated pin is mounted on the frame and is positioned so the pin is in alignment with a hole extending through the frame seat post and can move therein. When the seat post is inserted in the frame seat post and the hole in the frame seat post is aligned with one of the holes in the seat post, the lever actuated pin penetrating both holes holds the seat at the desired level.

Abstract: A locking device having portions engageable with a movable member for retaining same in a selected position relative to a stationary support member. The locking device includes a body member mounted on the stationary member and a plunger within the body member and having one end portion thereof movable into and out of a selected one of a plurality of sockets in the movable member in response to movement of a cam follower on the plunger along a cam surface on the body member. Movement of the cam follower is effected by a handle in engagement with the cam follower and cooperating portions on the cam and lock structure retains the plunger at an end of its travel until relative movement is positively effected.

Abstract: A chair rest member supported upon a back post includes a spring-urged laterally shiftable lever journalled within a housing carried by the rest member. A cutout in the back post includes a plurality of vertically spaced lock recesses selectively engageable by an offset catch on the lever to fixedly retain the rest member at a selected elevation.

Abstract: A first member relatively movable with respect to a second member has a latching mechanism which comprises a pin in a first aperture in the first member in alignment with a second aperture in the second member. The latching mechanism includes spring biasing means for biasing the pin into engagement and lever cam means pivotally connected to an end of the locking pin, and link means against a bearing surface of the first member for retracting the pin against the force of the spring biasing means to disengage the pin from the second aperture. The spring biasing means is contained within a spring housing which is in one embodiment removably mounted on the first member by fasteners such as bolts, and the second embodiment by welding to a guide block mounted on the first member. A control mechanism including a control cable attached to a bell crank which is actuable by means of a shaft manually rotatable by means of a control lever serves to actuate the lever cam means to engage or release the locking pin.

Abstract: A lever-operated latching device for securing in endwise coupled relation a socket portion and mating shank of axially aligned auger sections of an auger mining machine. The latching device is designed to be of minimum radial dimension so as to fit in a hole of limited radial cross section bored by the auger machine, and includes a latch pin that reciprocates in a passage formed in the socket portion between an extended position in latching engagement with the shank and a retracted unlatching position. The pin is biased by a spring toward its extended position and is retractable by a lever that engages a retractor element on the pin and that also acts as limit means that prevents the pin from extending beyond its extended latching position against the force of the spring. Openings are provided to permit removal by the latch pin of debris that could impair operative movement of the latch pin.

Abstract: An adjustable seat-back mechanism for use with a secretarial chair or the like to allow vertical adjustment of the chair's seat back from among a series of discrete vertical locations. The mechanism includes a bracket attached to the seat back, a pivotal lever attached to the bracket and a mounting bar with edge notches that are engageable by the lever to define the discreet vertical locations. The lever is easily operated to allow quick and effortless movement of the seat-back.

Abstract: An apparatus for forming glass containers wherein the glass is expanded to its final shape in a blow mold. A blowhead is brought onto vertical registry with the blow mold cavity. In the conventional Hartford I.S. forming machine, the mechanism for moving the blowhead onto and out of registry with the blow mold is pneumatically operated. The blowhead and the arm that supports the blowhead or blowheads is of considerable mass, and when an operator is required to change blow molds, or in some instances repair mechanisms which are at the blow mold location, it is necessary to maintain the blowhead in its up position. Air lockout systems have been used in the past but have not been foolproof. Accidents may occur. The present invention utilizes a mechanical lockout arrangement which locks the piston rod in its elevated position to avoid any possibility of the blowhead dropping.

Abstract: A chair construction of the type including a base with an upstanding supporting tube and a seat with a depending tube telescopically fitted within the upstanding tube, includes an improved height adjustment mechanism for the seat. A manually operated handle or trigger on the upstanding tube has an inclined planar tab that fits into any one of a plurality of slots defined in the depending tube to provide desired seat elevation. The tubes have a hexagonal cross section with complementary wedge surfaces so that the depending tube is guided by the planar tab into wedging engagement with the upstanding tube.

Abstract: An improved adjustable cross frame member for use in a bed frame having side frame members and another such adjustable cross frame member. Each cross frame member comprises a pair of elongate elements including first and second perpendicular legs. One of the first legs has a plurality of longitudinally spaced position defining apertures corresponding to selectable positions of the cross frame member. The other of the first legs has a protrusion engageable with one of the apertures for retaining the elements against longitudinal movement in both directions when like legs of the elements are positioned in surface-to-surface adjacency. A locking means retains the elements against separation and includes a plurality of longitudinally spaced threaded openings in the first leg of the first element, each opening being associated with a corresponding aperture.

Abstract: An improved adjustable cross frame member for use in a bed frame having side frame members and another such cross frame member. The improved member is comprised of first and second elongate L-shaped elements having mutually perpendicular legs. Both elongate elements are provided with a plurality of longitudinally spaced slots and protruding fingers in one leg thereof, with the spacing between slots and fingers and their sizes being alike for both elongate elements. The fingers of each element are oriented to be inserted into respective slots of the opposite element which are complementary therewith when the elements are initially positioned with like legs in face abutting engagement. The elongate elements are then longitudinally moved relative to each other to position each inserted finger in overlapping engagement with the portion of the opposite element adjacent the slot in which the fingers are initially inserted, and thereby positively hold the elements against separation.