Abstract: A compact glue heater for heating the flow of glue to a labeling machine has two spaced apart metal plates welded together at their edges and a rib running part way along the center of the space to define a U-shaped conduit between the plates. A glue inlet pipe connects to one end of the conduit and an outlet pipe connects to the other. Electric heaters composed of heat resistant insulating sheets with electrically resistive material between them interface with the outside surfaces of the respective conduit forming plates to form a heater and conduit assembly. The heater and conduit assembly is sandwiched between metal plates secured together by spacer blocks at their corners to form a unitary assembly removably supported on the spacer blocks in a cavity in a closed housing in spaced relationship to the walls of the cavity thereby inhibiting heat transfer through the housing.

Abstract: An electric arc welding control unit for controlling welding parameters such as voltage and wire feed rate. Manual potentiometer controls are operated from the outside of the unit to select values for the welding parameters. An override switch inaccessible to the outside of the control unit defeats the exterior controls and actuates second control means comprising interior controls which can be preset to define desirable schedules of welding parameter values. A selector switch is used to select one of the welding schedules. When they are defeated the exterior controls become dummy controls which do not affect the welding schedules.

Abstract: Workpiece clamp assembly adapted to engage a T-slot of a work table to provide horizontal, vertical, or a combination of horizontal and vertical clamping for a workpiece positioned on said work table.

Abstract: In x-ray apparatus where the central ray of an x-ray beam must be made perpendicular to the planes of one or more image receptors, a central ray locator is coupled to the beam output port of an x-ray tube casing and the central ray is indicated when a luminescent spot occurs at the intersection point of cross hairs on a phosphor screen. A laser device then replaces the locator. Its beam simulates the central ray and coincides with it and provides a visual indication of it. The laser beam enables determining if the tube casing is moving in a straight vertical line by observing the movements of the laser beam light spot while it is projected on a plane surface. Procedures are disclosed for establishing the simulated central ray in perpendicularity with receptor planes.

Abstract: A tubing connector for connecting lengths of round or square tubing includes a base block with an integrally molded connecting arm. Additional connecting arms are connected to the base block by screws which extend through a hollow bore in the connecting arm and an aperture in an end face of the connecting arm. The screws are threadably received in the base block.

Abstract: A door spacer adapted for mounting in the space between a sliding door and its top track to prevent vertical motion of the sliding door into the space adjacent its top track member, comprising a base member and first and second legs forming a triangle with an apex which extends vertically into the space between the sliding door and the top track. Means are provided to move the point of attachment of one leg to the base longitudinally along the base to adjust the vertical height of the apex above the base of the door spacer.

Abstract: Baling press adapted to receive dried ordinary bales of hay and to compress them further, particularly to facilitate shipment of the bales.The press comprises a longitudinally extending compression chamber having substantially rigid lateral walls, an upstream end wall comprising a ram longitudinally movable between upstream and downstream extremes of movement, and a downstream end wall comprising an exit gate.The compression chamber is provided with novel bale ejection means comprising a longitudinally extending endless chain loop with first and second runs, the first run being attached to the ram and the second run being attached to a barbed ejection plate which engages and ejects bales in the compression chamber while moving downstream and which disengages matter within the compression chamber when moving upstream.

Abstract: An adjustable focus x-ray tube has its cathode connected to the negative side of a dc power supply which is below ground by half of the total voltage applied to the tube and its anode connected to the positive side of the supply which is above ground by half of the applied voltage. A voltage divider is connected between the negative side or cathode and ground and an intermediate point on the divider is connected to a focusing electrode in the x-ray tube for providing a focusing bias voltage. Since the bias voltage is derived from the cathode-to-ground voltage it will always track or remain proportional to the cathode voltage so the effect of variations in the latter on focusing will be negated.

Abstract: A case loader for placing articles such as beverage packs in cases or cartons includes a supply conveyor for articles and a carton conveyor which merges into the article conveying path and pairs of spaced guide plates or loading plates supported on overhead endless chains arranged along the sides of the conveying path to grip and center the articles on the supply conveyor and to "shoe horn" the articles into the cartons. A case displacement lever pivots in the gap between spaced runs of the case conveyor to raise the leading edge of the case or carton upwardly to lessen the drop distance of the article into the case to minimize damage.

Abstract: An open-bottomed storage battery container, made of paperboard material, for protecting components such as the terminals projecting from the top of the battery case from being pressed when batteries in the containers are stacked. The container has four walls and a flap extending from a horizontal score line on each wall. Two opposed flaps have multiple angular score lines to enable folding them into tapered beams that rest on the top of the battery case. The other two opposed flaps serve as container covers. Said other flaps each have an angular score line defining cover and tongue sections. The tongue sections interface at an angle when the covers are closed and their ends rest on top of the battery case to provide support in addition to that provided by the beams.

Abstract: A cooking retort for soup or the like in which the individual cans are stored in storage rack clusters arranged around a generally horizontal axis. The retort employs a power cylinder to tilt the retort and thus the storage racks to enable inclination of the racks to facilitate the loading and tilting of the racks to facilitate unloading. In addition, a hexagonal pattern of can rack clusters is provided to enhance cooking capacity of cans.

Abstract: A fastener for use in plaster walls, ceilings, and the like to support a lamp or plant, includes a conventional screw of uniform diameter, a spring threaded over the screw, and a toggle with a screw threaded hole of large enough diameter to be threaded over the outer surface of the spring. The screw may be capable of engaging the threads in the toggle plate, although the diameter must be small enough so that the spring may be received between the threads of the lag screw and the threads of the hole in the toggle plate. The screw may be a lag screw, a machine screw thread, etc. The screw shank is full-sized, not reduced to receive the helical spring. The spring serves to connect the screw and the toggle plate by being threaded partially one into the other and has the capability of being bent resiliently so that toggle and screw are parallel to each other for insertion into a blind hole, after which the toggle springs back into position and the assembly is screwed together. The spring may be a plastic tube.

Abstract: Disclosed herein is a coin operated vending machine with an article delivery chute located adjacent the side of the front face of the machine. Bottles and cans stored in vertically oriented storage racks are shifted to the side located delivery chute by a sweep bar connected between spaced chains. The sweep bar is actuated in conjunction with the vend cycle so that it is only operating during vending. Location of the delivery chute adjacent one side of the machine enables use of the face of the machine for advertising display.

Abstract: Apparatus for closing the flaps on a carton in an in-line path includes rotary brushes located on opposite sides of the conveyor path with the bristles extending toward and within the carton conveying path. In one embodiment, the bristles on the brushes sweep the leading carton flap upwardly and rearwardly over the carton top to close the leading flap as the cartons are conveyed past the bristles. The trailing flap brushes engage the trailing carton flap and fold the flap upwardly and forwardly over the carton. The side flaps are folded over the end flaps by folding plows after glue has been applied to the end flaps. The apparatus also includes slitting knives for severing the connections between the edges of downturned carton flaps prior to movement of the cartons to the flap folding station.

Abstract: A light weight chassis or skid for a turbine or engine-generator combination has a relatively narrow central beam section with laterally extending wing portions which are provided with mounting pads for the engine and the generator. The chassis is supported on a supporting surface by three resilient motor mounts, two of which are connected to wing portions and the third is positioned under the center line of the beam portion and under the engine. The three mounts enable securing the chassis to irregular surfaces without twisting the chassis and affecting alignment problems of the engine output shaft and the generator shaft, which misalignment can cause bearing wear and other maintenance problems.

Abstract: A laser for directing a nominally 5 micron wavelength beam at a hemangioma or other variegated lesion. A fiber optic bundle for intercepting radiation reflected from the lesion at an intensity corresponding with the color intensity of the region at which the beam is directed. The output beam from the fiber optic bundle modulates a photodetector stage whose amplified output drives a galvanometer. The galvanometer shaft is coupled to the shaft of a potentiometer which is adjustable to regulate the laser power supply and, hence, the laser output energy level so laser beam energy is reduced when high absorption regions in the lesion are being scanned by the beam and increased as low absorption regions are being scanned.

Abstract: A succession of pads such as disposable diapers, all folded in the same direction originally, are received in an oscillating conveyor which directs alternate pads into separate lanes. The first lane has orbiting paddles for receiving pads folded in their original direction and for inverting them to reverse their fold direction. A conveyor transports the inverted pads to a collection table. The second lane has cooperating conveyor belts for transporting pads, having their folded edges in the original orientation, to the collection table for being stacked on top of a coincidentally arriving inverted pad from the first lane.

Abstract: A strain relief device comprises a bushing for being mounted for rotation in a hole in a support member. The bushing has a flange at one end that prevents it from sliding through the hole and it has an axial internally threaded bore. A collet that has an axial bore, and external thread at one end and a tapered or conical portion contiguous with the thread screws into the bushing thread from the side of the support member opposite from the flange on the bushing. As the threaded end of the collet advances it causes the conical portion to wedge in the hole and be pressed radially inwardly for gripping a cable which has been passed through the collet and bushing.

Abstract: The front wheel assembly of a wheel chair is dimensioned so that it will easily pass through the space between the seat of an automobile and the doorframe thereof. The rear wheel assembly is retractable upwardly under the seat portion to a position which permits the seat portion and the retracted rear wheel assembly to be set upon the automobile seat. The wheel chair and the person seated therein may be easily placed on the automobile seat and removed therefrom while the person remains seated in the wheel chair.