Abstract: A back pack assembly including a plurality of hollow container sections to be stacked vertically and contain ice or another cooling or heating substance located within one of the sections, with at least one other section having its interior in communication with the first to have its contents cooled or heated by said substance.

Abstract: A clip for holding an abrading sheet on an abrading tool, and including a clamping element of sheet form spring material which is received opposite and clamps an end of the sheet against a backing surface of a coacting structure, with the clamping element being mounted to that structure by a connecting link which swings to an overcenter position in the clamping condition of the device, and with the backing surface being disposed at a camming angle producing an automatic take-up action for tightening the sheet on the tool as necessary to maintain it in a properly taut condition.

Abstract: A composite crank mechanism including two interconnected coacting crank elements whose movements are timed by gears in a relation causing the radii of the two elements to be additive, and have a maximum combined effective crank radius in both of two opposite dead center positions, and to have a reduced combined overall radius in intermediate positions.

Abstract: A closure which is releasably retained in closed position relative to a surrounding structure by inflation of a locking bladder, which preferably extends about the periphery of the closure and is partially received in opposed grooves in the closure and the surrounding structure respectively.

Abstract: A mattress supporting foundation unit which is constructed to offer very firm support to a mattress, and which includes a base frame, a horizontal wire mesh spaced above the frame, and support wires for connecting the mesh to and supporting it from and above the frame, with these support wires having portions forming legs which extend upwardly from the base to the mesh and are substantially straight for their entire length between the base and mesh to give the desired rigidity to the overall structure. The support wires desirably also have connector portions which extend laterally between successive legs and are attached to the base and mesh.

Abstract: An ammunition loading bench preferably including a cabinet movably mounted on supporting wheels and having a rigid top plate to which a loading press is connectable, with weights being connected to and hanging downwardly from the top plate to take forces exerted thereagainst, and with the plate and weights being detachable from the cabinet for use separately therefrom to mount a press with the plate resting on a generally horizontal support surface and held downwardly thereagainst by placement of the weights on the upper side of the plate. Desirably, in both uses, a foot pedal is connected to the plate, directly or indirectly, to exert downward force thereagainst resisting upward forces exerted by the press against the portion of the plate to which the press is mounted.

Abstract: A torch having a body carrying valves for controlling the flow of fuel and oxygen, with a conduit structure projecting from the body and carrying a two-section swiveling head assembly mounting a nozzle for swinging movement between different angular settings. The two hinge sections are both made relatively short as compared with the length of the conduit structure, in a relation enabling optimum adjustment of the angularity of a produced flame within a wide range of angles, without excessively displacing the actual position of the flame relative to the body of the torch and a work piece. One of the hinge sections is preferably attached rigidly to the conduit structure, and is made small enough in transverse dimension to enable an outer tubular housing part to be received about and moved axially past that hinge section during assembly, to a location about the mentioned conduit structure.

Abstract: A burner which is capable of burning a very lean mixture of flammable vapors and air, and which preferably also can burn a mixture of varying richness and B.T.U. content, with the burner desirably including a structure forming an upwardly facing recess and an inlet for introducing the vapor-air mixture into a lower portion of that recess in a relation enabling the mixture, when lean, to burn at least partially in the recess in isolation from external air, and when richer to burn at an upper elevation at which external air can mix with the basic vapor-air mixture.

Abstract: A detachable connection in which one of two members has an end telescopically receivable within a mating end of another member and carries a locking part threadedly adjustable transversely of the members into and out of locking reception within an enlarged portion of a slot formed in a sidewall of the outer of the two telescopically interfitting elements. The connection may be utilized for detachably securing different camera stands to a quick change adapter tube secured to the body of a camera.

Abstract: A vapor recovery system in which gasoline vapors or other flammable vapors are withdrawn from the vicinity of a like, and are disposed of by combustion in a burner system, preferably consisting of two burners selectively usable for burning vapor-air mixtures of different B.T.U. contents. The vapors may be temporarily stored by adsorption onto an adsorbing substance, and then be removed from that substance by conducting a flow of air therepast.

Abstract: A portable abrading tool having a shoe which is driven relative to a carrying body by a contained air motor to perform an abrading operation, and in which a flow of air discharged from the motor passes through a conduit structure projecting from an end wall of the tool body, with the body having a flange projecting therefrom beneath the conduit structure and carrying at its underside a seal part slidably engaging the shoe structure to deliver air and abraded particles from a passage in the shoe through the seal part and upwardly through a connected secondary conduit for delivery into the primary stream from the motor, in an aspirator relation inducing the secondary flow by the energy of the primary stream.

Abstract: A pedal actuated drive mechanism including two pedal structures to be actuated by the two feet of a user and preferably mounted to swing about an axis in two opposite directions, with the two pedals acting through a flexible cable or its equivalent to drive a bicycle wheel or other driven rotary unit through two one-way clutches each of which turns in a predetermined driving direction when a corresponding one of the pedals is pressed away from the user. Desirably the two cable lengths actuated by the two pedals respectively are interconnected for movement reversely with respect to one another, so that depression of the one pedal causes reverse movement of the other pedal. The effective power transmission ratio of the drive assembly can be varied by a controlled shifting of the points of connection of the flexible drive cable to the pedal structures to move those points of connection toward or away from the pivotal axes of the pedal structures, and thereby vary the effective lever arms of the pedal structures.

Abstract: A pile handling tool is supported at the upper end ofa tubular guide, and includes a jacking mechanism for advancing a pile longitudinally relative to the guide, and a mast projecting upwardly above the jacking mechanism and carrying an aligning structure for laterally engaging a pile and holding it in properly aligned position with respect to the guide. The mast is desirably mounted for retracting movement from an upwardly projecting active position to a laterally retracted inactive position. The jacking mechanism may be constructed to rotate one of two successive pile sections relative to the other to complete a connection therebetween.

Abstract: A seating unit with a flexible seat back having an upper portion separated into two halves positioned to support a user's back at opposite sides of his spine, and with these halves being mounted for resiliently resisted rearward deflection relative to one another in order to accommodate movement of the user's body, and with a slit or the like being provided at the center of the back between these halves to enable projection of the user's spine rearwardly beyond adjacent portions of the user's back for optimum comfort at all times. The back structure may be connected to a generally horizontal seat element, which may be bifurcated to have two relatively movable forwardly projecting portions. The device may also have an anchoring portion for detachable connection to a cushion of an upholstered seat on which the unit is to be used.

Abstract: A pistol grip including two side panels to be received at opposite sides of the handle of a pistol, and cross straps to extend between the two side panels at the front and back of the handle, with all of these sections including elastomeric material having outer gripping surfaces to be contacted by the hand of a user, and with the cross straps having connector portions which extend to locations at the inner sides of the side panels and which have projections extending laterally outwardly to positions opposite coacting shoulders formed in the side panels in a relation positively locking the cross straps against detachment from the side panels.

Abstract: A threaded nut having a case containing a separately formed essentially helical coil structure which forms an internal thread and is fusion bonded to the case, preferably by electron beam welding. The coil structure desirably has a locking portion which is substantially free of direct attachment to the adjacent portion of the case, with this locking portion and the surrounding portion of the case both being deformed to a condition requiring radially outward displacement thereof upon threaded engagement with a mating screw, to thereby attain a very effective self-locking action preventing unscrewing the nut.

Abstract: A game toy including a board having an upwardly facing support surface on which a spinning top is receivable, along with one or more shiftable parts which are movable to different positions on the support surface by the top as it spins. Preferably, one of the shiftable parts has an opening within which the top is received in a relation controlling movement of that part, while the other shiftable part is desirably disposed about the first part and movable relative thereto.

Abstract: A winch for automatically taking up slack or looseness in a chain or the like and including a reel element having a ratchet mechanism for normally permitting rotation of the reel in only one direction, together with a power operated actuating unit which advances the reel and ratchet mechanism rotatively through successive steps in a take-up direction and is retractable in an opposite direction relative to the reel after each advancement step and in preparation for the next successive advancement. Automatic control means, desirably an automatic valve arrangement, cause such retraction of the power actuated unit in response to its arrival at a predetermined advanced position.

Abstract: An eye make-up device which includes a group of natural or artificial hair filaments connected together and adapted to be applied to the eyelid of a wearer in a position of extension along the edge of the lid to serve as an eyeliner. This group of filaments is preferably attached to a series of eyelashes, which project from the group of filaments to form a composite eyeliner and eyelash unit.