Abstract: A collapsible carrier for a heavy machine, has(a) an upper platform adapted to support the machine,(b) first leg structure pivotally attached to the platform and extending downwardly and forwardly relative to the platform,(c) second leg structure having upper extent located to support the platform and extending downwardly and rearwardly relative to the platform,(d) the first and second leg structures pivotally interconnected below the level of the platform,(e) there being a slide surface associated with the platform and presented to transmit loading to the second leg structure upper extent as that upper extent travels therealong between first and second positions corresponding to raised and lowered positions of the platform and there being stops associated with the platform to limit such travel at the first and second positions,(f) releasable mechanism to lock the second leg structure upper extent to the platform at the first and second positions,(g) and a counterbalance operatively connected with said first

Abstract: A console-housed tray table set including a console cabinet having a solid top wall, solid opposite side walls and a front wall, said front wall having a plurality of slot-like openings therein extending horizontally between said side walls and arranged in vertically stacked spaced relation; and a corresponding plurality of tray tables removably stored one by one within said horizontal slot-like openings.

Abstract: A collapsible carrier for a heavy machine, comprising(a) an upper platform adapted to support the machine,(b) first leg structure pivotally attached to the platform and extending downwardly and forwardly relative to the platform,(c) second leg structure having upper extent located to support the platform and extending downwardly and rearwardly relative to the platform,(d) the first and second leg structures pivotally interconnected below the level of said platform,(e) there being a slide surface associated with the platform and presented to transmit loading to the second leg structure upper extent as said upper extent travels therealong between first and second positions corresponding to raised and lowered positions of the platform, and there being stops associated with the platform to limit such travel at the first and second positions,(f) releasable mechanism to lock the second leg structure upper extent to the platform at the first and second positions,(g) and a counterbalance operatively connected with sa

Abstract: A ratchet-type catch assembly is disclosed for attachment as a slide connection between a scissors frame and an object supported by the frame. While one leg of the scissors frame is fixed to the object in a hinge-type, nonsliding manner and the other in sliding manner, the assembly forms part of the latter, providing a series of locking catches at successively varying angles of the scissors frame, and the discrete graduated heights of the object. The pawl and ratchet stops are oriented to permit vertical elongation of the frame by the application of upward force to the object, while preventing collapse. The catch is opened by release of the pawl, permitting complete collapse of the frame to a flattened configuration.

Abstract: A tray and seat are adjustable vertically with respect to a base on a baby walker. Connecting means extending from the tray to the base is associated with a pawl having teeth meshed with a rack on the bottom surface of the tray. The meshed teeth are shaped so that the tray and seat can be elevated with respect to the base only by applying an upward force on the tray.

Abstract: A trolley for supporting and transporting units of electronic equipment is provided with a front pair of legs and a rear pair of legs, with horizontal members being integrally formed with each pair of legs. A platform is supported upon the horizontal member of the rear legs and upon a mount member rotatably mounted upon the horizontal member of the front pair of legs. Supporting brackets are fixed to each of the rear legs, upon which are attached retaining brackets, with the horizontal member of the front legs being retained within these retaining brackets in rotatable manner. Link members are rotatably coupled to the lower ends of the legs, in such a way that the entire assembly may be folded together into a very compact space. Greatly increased strength and rigidity by comparison with conventional trolleys is ensured.

Abstract: An adjustable height tray table is disclosed having supporting legs which are not permanently secured to the tray, whereby the tray may be removed from the supporting legs and used separately or independently as a serving tray. Adjustment of the height is effected without the use of tools or supplementary fasteners. Indicia are provided on the tray for enabling the user of the tray table to quickly and easily adjust the table to the desired height. Leg assemblies are provided with areas or means which enable the legs to be coordinated with elements of the tray for enabling the desired height to be quickly and easily attained. The tray is provided with locator members which enable the tray to be adjusted to a plurality of selected heights.

Abstract: Modular office furniture adapted for rapid and simple assembly and disassembly. The furniture basically comprises a generally planar top module adapted for use as a desk top or table top or the like and a pedestal module for supporting the top module. Quick-acting snap connecting means are provided for securing the top module onto the pedestal module. The snap connecting means includes a cylindrical locking rod and an associated clip having a resilient mouth into which the rod is adapted to be snap fit. The rod is permanently secured to the pedestal and the clip is permanently secured to the top. A pair of guide rings are provided secured to the locking rod and spaced apart thereon by sufficient distance to permit the clip to fit therebetween when the rod is within the clip mouth but to prevent longitudinal relative movement between the rod and clip. The pedestal unit may be of various configurations, e.g., drawer units, and more than one pedestal unit can be utilized with the top module, if desired.