Abstract: Spaced apart webs extend between upright sidewalls of a block having parallel upper and lower surfaces. A plurality of the blocks are placed in staggered linear courses to form a wall. Projections extending upwardly from the webs of the blocks are secured in the spaces between the webs of the blocks of the successive course. The projections interlock with the sidewalls for lateral alignment of the blocks, and are spaced from the webs for longitudinal adjustment of the blocks. Corner blocks and end blocks are also provided.

Abstract: A base is securable to the lid of a conventional container assembly which also includes a vessel. The base includes an inwardly directed flange which abuts the top panel of the lid and a downwardly directed flange which encircles the skirt of the lid. Upstanding from the base are lugs which provide diametrically opposed shoulders for receiving a leverage tool for the purpose of rotating the lid relative the vessel.

Abstract: A collar, slidably carried upon the barrel of a wand-type spray gun, is normally urged rearward against a stop by a compression spring. Disposed between the stop and the collar is a ring-like member which rocks relative the barrel using the edge of the collar as a fulcrum. The ring-like member abuts a lip extending radially inward from the forward end of a holder tube and prevents expulsion of the spray gun in response to the rearward force from the emission of high pressure fluid from the nozzle of the spray gun. Slight pressure upon the handle readily withdraws the spray gun from the holder and tapered fins carried by the collar. A ramp depending from the lip guides the spray gun into the holder.

Abstract: The disclosure relates to a rectilinear transport means particularly adapted for transporting a rectangular array of individual photographic film elements one at a time into register with the axis of a projector lens or the like or for the purpose of moving or controlling the movement of other objects in a generally rectilinear manner with respect to a generally rectangular array of elements or portions; the disclosure including a simple mechanical rotary actuator and indexing means wherein the rotary actuator continuously rotates in one direction and drives the indexing means back and forth in a generally serpentine path by engaging successively indexing portions spaced in rows generally parallel to each other and whereby the rotary phase direction of the rotary indexing means when it reaches opposite ends of the rows in the rectilinear path causes a reversal of direction in the movement of the indexing means so as to progressively move in one direction and then the other and wherein the disclosure also rela