Abstract: A caster for supporting an object on wheels is provided with a brake that is operable between engageable and disengageable positions. The brake alternatively restricts and permits rotation of the caster wheel relative to a moveable swivel element. The brake includes a brake pad operated by movement of an operating member located externally on the operating components of the caster. A detent system provides detents for alternatively holding the brake in both the engaged and disengaged positions.

Abstract: An art production method involving the use of cast clay-coated paper instead of conventional board stock utilized for setting up mechanicals, etc. suitable for printing and other purposes providing a more readily inked surface as well as one which can be easily corrected by scraping or scratching out undersired inked portions, and where the hard, smooth surface of the cast coated material has sufficient strength and durability to resist peeling or tearing occasioned by the application and removal of adhesive tapes to the surface.

Abstract: A caster brake construction comprising a base, a fork rotatably mounted on the base and having downwardly extending legs, an axle extending between the legs, and a wheel rotatably mounted on the axle. A washer is non-rotatably mounted on the axle exteriorly of one of the legs. A pedal is mounted on the axle exteriorly of the washer and has circumferentially spaced arcuate cam ways. Each cam way is tapered inwardly toward the center thereof and a plurality of circumferentially spaced projections on the washer normally engaging the deepest portions of the cam ways such that when the pedal is rotated in either direction from said normal position, the cam ways force the projections axially inwardly thereby forcing the one leg against the wheel to lock the wheel against rotation, and when the pedal is returned to its original position, the braking force is relieved.

Abstract: A caster swivel lock construction comprising a base, a yoke rotatably mounted on the base for rotation about a vertical axis and having a ring plate and spaced legs extending away from the ring plate, an axle extending between the legs and a wheel rotatably mounted on the axle. The ring plate has one or more radially extending notches therein. A spring loaded plunger assembly is mounted on the base and comprises a body, a plunger movable axially in the body, and a spring associated with the plunger. A foot pad is pivoted to the plunger on the other end and has a cam portion urged by the spring to engage a portion of the body so that the plunger is moved axially inwardly and outwardly by operation of the foot pad. The plunger assembly is removably mounted on the base so that the plunger axis extends radially inwardly toward the ring plate and movement of the foot pad causes the plunger to move radially inwardly and outwardly for engagement and disengagement with a notch.

Abstract: A tow truck of the type having wheels supporting it for movement along a path defined by a subfloor conveyor. There is a vertically movable tow pin at the front of the truck for vertical movement in and out of driving engagement with the conveyor. An accumulation bumper at the front of the truck is movable between a forward normal running position and a rearwardly retracted accumulating position when the bumper engages an object ahead of the truck. A connecting mechanism between the bumper and tow pin includes at least one bell crank member pivoted for rotation on a transverse axis behind the tow pin with a first lever arm projecting upwardly and connected by a link to the bumper, together with a second lever arm projecting forwardly and connected to a vertical lift rod, the upper end of which is operatively connected to the upper portion of the tow pin.

Abstract: Staple depressions formed in a panel by the operation of a pneumatic staple driver are automatically filled with putty from a disposable cartridge. Delivery of the putty from the cartridge is automatically sequenced by the operation of the staple driver trigger. Actuation and release of the staple driver trigger causes a measured quantity of putty to be forced into a putty delivery port. The putty is then pressed into the staple depression.

Abstract: The present invention is an attachment for a hand truck. The attachment comprises two truss members welded to the hand truck and two elongated rail members, each secured to one of the truss members. The rail members each include an elongated slide of an ultra-high molecular weight polymer which provide a low-friction surface for slidably supporting the hand truck on the edge of a stair.

Abstract: A mounting structure for a wheel mounting assembly such as a caster assembly having a mounting plate. Mounting blocks of viscoelastic rubber-like material are mounted on corners of the mounting plate. Each mounting block includes flanges which define a slot in which an edge portion of the mounting plate is received. Brackets attached to a support panel of a cart or the like supported by the caster assembly hold the flanges in compression against the faces of the mounting plate and against the panel so that the panel and the cart or the like are viscoelastically supported in spaced relation to a surface on which a wheel of the assembly runs.

Abstract: A sleeve for a caster, insertable into a cavity or hole in a furniture leg; the sleeve is generally tubular with a closed upper end and an open lower end; the sleeve is slotted longitudinally, forming diametrically opposed legs which are flexible toward and from each other; the legs have upper and lower prongs, the upper ones projecting upwardly and the lower ones projecting downwardly, both biting into the surface of the cavity and aiding in normally retaining the sleeve in the cavity; the upper prongs also releasably retain the caster stem in the sleeve; it also has transverse slots at the closed upper end communicating with the longitudinal slots.