Abstract: Loosely and relatively swingable within an outer three-sided rectangular frame is an inner three-sided rectangular frame, the forward lower cross member of which is connected to the upper rearward cross member of the outer frame by a flexible fabric seat member. The inner frame is loosely connected to the outer frame at their respective lower ends and also intermediate their lower and upper ends by elongated flexible connectors, such as chains, so that the inner frame can swing relatively to the outer frame with a relative rocking motion. The upper ends of the inner and outer frame side members are joined to their respective cross members by wedge-and-groove connections so as to provide separable connections therebetween. An arm rest is adjustably mounted on each side member, which passes through an elongated rectangular opening in the arm rest and locks the arm rest when in its horizontal position of use at an acute angle to its respective inclined outer frame side member.

Abstract: For fluid interchange treatment, a flexible collapsible structure is provided which consists of stacked horizontal partition walls formed from pairs of sheets of non-woven fabric material such as felt heat-joined by plastic coatings on their inner surfaces and disposed in vertically-spaced parallel arrangement and sealed at their sides by accordion-folded sheets of flexible collapsible material. The paired sheets contain ports which are offset relatively to one another in successive sheets. The paired fabric sheets and their plastic-coated inner surfaces are provided with openings to form cells with which the ports communicate, these openings being so arranged that, a multi-columned collapsible structure of parallel cellular formation results, with independent zigzag paths between top and the bottom of each cellular column.

Abstract: An end cap for closing an open end of a pipe. The end cap is formed with a sleeve of plastics material closed at a first end by a wall and having tongues formed integrally with the sleeve on the opposite or second end. These tongues fit in openings in a plastics clamping ring at the second end of the sleeve and engage with a side of the ring to prevent removal of the clamping ring. The clamping ring holds a sealing ring of rubber material around the inside of the sleeve for sealing engagement with the pipe fitted into the sleeve through the second end of the latter.

Abstract: A prefabricated approximately T-shaped blank of flexible sheet material with a pair of screened openings spaced apart from one another in the longitudinal portion of the blank is foldable along spaced parallel folded lines into a flat trap structure composed of outer and inner arch-shaped walls with screened skylights therein, the inner screened skylight having a small exit port therein. The structure thus formed has a floor panel with approximate arch-shaped side wings foldable upward therefrom into end closures for the structure, these wings containing small entrance doors near their fold edges. The screens are cemented to the border areas around their respective openings and these cemented areas covered by pairs of half-I-shaped border flaps integral with the blank and folded therefrom over the cemented areas.

Abstract: A light weight spot welding gun has an aluminum gun body with silver plated sockets for fixed and moveable electrodes. The body has cooling water passages communicating with the sockets. To prevent corrosion and clogging of the passages, the passages are nickel plated.

Abstract: To determine whether or not all of the required holes have been formed in a multiple-hole workpiece, as by a punch press, the workpiece is placed in an inspection arrangement containing a system of multiple mirrors adapted to reflect a laser beam from a laser beam source through the multiple holes in the workpiece to a laser beam sensor which preferably is electrically connected to an acceptance or rejection indicator or actuator or to the press control system. If all of the holes have been properly punched or otherwise formed, the sensor recognizes that fact and permits the next workpiece to be fed to the press and the inspected workpiece to be conveyed onward as accepted.

Abstract: Mounted adjacent and in alignment with the workpiece supporting portion of a workpiece-shape-altering machine, such as the lower die of a stamping press, is a laser beam source, the outgoing beam from which passes through a beam splitter which divides the entering beam. One of the two emergent beams from the beam-splitter is a workpiece position-inspecting beam which passes in a grazing direction across one portion of the top of a workpiece resting upon the lower die for subsequent stamping by the upper die of the press. This beam continues onward to a mirror which reflects it in a grazing direction back across another portion of the top of the workpiece to a workpiece position detector. The other emergent beam from the beam splitter is a workpiece presence-inspecting beam which is obstructed by the workpiece, if present on the lower die, so that it does not reach the workpiece presence detector therebeyond.

Abstract: The shank of an eye fastener forming a fishing line connector is relatively rotatably mounted in one or more circular bearing loops of the bearing portion of a bent wire structure forming a fishing lure connector. From one end of the bearing portion extends an approximately U-shaped or V-shaped lure connection portion which terminates in a keeper bend. From the other end of the bearing portion a closure portion extends across the open end of the U-shaped or V-shaped portion and terminates in a latch bend which releasably interlocks with the keeper bend.

Abstract: To prevent the rupturing, by the expansion of the water upon freezing, of a water-freezing ice-storing reservoir and at the same time release the warmer air after producing the freezing of the water into ice, the interior of the reservoir is surrounded by a duplex wall structure or anti-freeze barrier of highly insulating material, such as the expanded polystyrene plastic known commercially as styrofoam, in the form of slabs spaced inward from the tank wall by compression springs so that the inner body of water within the duplex insulating anti-freeze barrier is frozen by freezing the air entering that body through multiple pipes from the outside atmosphere in winter time while the outer body of water adjacent the tank wall of the reservoir but outside the insulating wall thereof is protected from freezing by the insulating effect of the slabs.

Abstract: A wheel-supported palletizer frame structure has an empty-pallet magazine containing an empty pallet stack from the bottom of which empty pallets are delivered one by one to a hydraulic scissors pallet elevator while the rearward ends of the pallets remaining in the stack are temporarily lifted. The pallet elevator has a table which is raised and then lowered step-by-step by a hydraulic scissors mechanism from successive elevated positions wherein the platform or each tier of bags thereon is lowered in timed relationship with a rotary and reciprocable open-ended bag positioner. Filled bags are fed one-by-one to either of the opposite ends of the bag positioner from a horizontal bag conveyor aligned with the bottom of the bag positioner and coupled thereto for travel back and forth therewith. The bag positioner is rotatable between either of two longitudinal positions aligned with the conveyor and movable into any one of a plurality of lateral positions disposed transverse to said bag conveyor.

Abstract: To bend sheet metal through a wide angle into an acute angle, this bending brake has a foundation carrying a stationary workpiece-clamping structure including multiple J-shaped stationary workpiece-clamping jaw supports disposed in spaced parallel relationship and carrying an elongated stationary workpiece-clamping jaw. The upper portion of each such support terminates in a U-shaped cam thrust abutment engaged by an eccentric movable-jaw-operating cam operatively secured to a common composite cam shaft journaled in multiple movable workpiece-clamping jaw arms with downwardly-curved rearward end portions pivotally mounted at their rearward ends upon pivot bolts carried by the upwardly-curved rearward end portions of the stationary supports.

Abstract: Secured to or formed on the lower side of an elongated narrow base plate or support are multiple pavement grooving members of substantially the same configuration in comparison with one another secured thereto in laterally-spaced parallel relationship. Each grooving member is an elongated narrow body of approximately V-shaped cross-section with upturned forward and rearward ends for ease of pushing or pulling it through a pavement in a plastic state to form multiple parallel grooves therein for enhancing traction of persons or vehicles passing thereover. An approximately truncated V-shaped hollow handle receiver is secured to the upper side of the elongated plate in approximately perpendicular relationship thereto. The handle receiver thus has two outwardly-inclined arms, either or both of which receive the lower end of a handle so that one person or two persons may operate the groover by pulling it in opposite directions across or along the pavement, which may be either a roadway, a sidewalk, or the like.

Abstract: A composite heavy-duty machine element such as a face gear (FIG. 7), a spur or helical gear (FIG. 14), or ball bearing races (FIG. 18), has its working or load bearing portion composed of sintered powdered high-performance alloy while its supporting portion not subjected to concentrated or intense heavy loads is made of a base metal such assintered powdered iron. In FIGS. 1 through 18 the powders of the two portions are inserted separately and successively in the die cavity of a briquetting press and simultaneously compacted to form a composite briquette which is then sintered to bond the separate portions together even though they are of different materials with different physical characteristics.

Abstract: The present invention replaces the film supporting and stripping arrangement in the most widely-used conventional motion picture film printing machine with a film driving sprocket and a combined supporting and stripping drum which drive and fully support both the superimposed negative film and copy film throughout their entire widths and prevents them from moving apart from one another as they pass through the exposure zone wherein the exposure light passes through the two films but not beyond the combined supporting and stripping drum which obstructs the further passage of the light so that it is either reflected or deflected backward from the drum.

Abstract: An elongated mounting plate has shelf-supporting arms extending outward therefrom in spaced parallel relationship from the opposite ends thereof. These arms at their junctions with the bridge portion have notches for the reception of interchangeable vertical ornamental panels, whereas these arms have elongated recessed portions in their upper edges extending back to the upper ends of the notches for the reception of a horizontal shelf panel.

Abstract: For holding while machining the end enlargement or enlargements of an elongated otherwise thin deformable workpiece, such as a jet engine blade, the lower block of a two-part hinged fixture has mechanically-adjustable stops which predetermine the location of the front edge and front end of the thin portion of the workpiece and has three upwardly-inclined support pins upon which the lower surface of the thin portion rests. An upper block hinged to the lower block contains three downwardly-inclined correspondingly located clamping pins which bear upon the upper surface of the thin portion immediately above the lower support pins. Each block contains horizontally-movable forward and rearward hold-fast pins for the workpiece end enlargements.

Abstract: Rising from the opposite ends of an elongated rectangular base structure equipped with casters are two tubular uprights interconnected at their upper ends by a cross bar having opposite overhanging ends and brackets projecting therebeyond. The lower portions of these uprights are detachably bolted to upstanding upwardly convex arcuate braces secured to the opposite ends of the base structure. The cross bar and its end brackets are similarly detachable as a unit from the upper ends of the uprights whereby the truck may be disassembled into a compact space for return to its starting point. The base structure is so constructed as to nest with the base structures of similar trucks, so that when the articles transported from the warehouseto the destination have been delivered by several such trucks, these may be disassembled in the foregoing manner and their base structures stacked one upon the other for compactness of shipment or storage.

Abstract: Energy, from road bed jolts, expended against the wheels and axle or axle housing of either a self-propelled or a trailer vehicle so as to cause the axle to rise and fall is transmitted to a rotatable shaft through a reciprocatory-to-rotary motion transformer including elongated double rack housings containing compression springs engaging relatively-sliding shorter double racks which through their delayed actions due to their inertia and the time required for them to compress their respective springs cause the motion of the racks to lag behind the road-shock induced motions of their respective rack housings, whereupon the thus-compressed springs expand and push their respective racks into the end spaces so opened up within their respective housings, whereupon the thus-tardily moving racks belatedly rotate their respective pinions provided with oppositely-acting unidirectional clutches. The consequent intermittent rotation of the shaft is rendered continuous by a flywheel on the shaft.

Abstract: A horizontal passenger-restraining padded buffer (FIGS. 1 and 2) extends transversely across the front portion of the automobile passenger compartment adjacent to and overlying the cowl. This buffer is mounted on the outer ends of the piston rods of a pair of rearwardly-facing pneumatic cylinders tiltably mounted in spaced parallel relationship on the fire wall of the vehicle. The rearward chambers of the cylinders contain air and the normal retracting positions of the pistons are adjacent the forward ends of the cylinders. Secured to the forward end of each cylinder and communicating with the forward chamber thereof is an explosive gas generator which contains a cartridge chamber for a pistol blank cartridge adapted to be fired by a reciprocable firing pin actuated by an electrical solenoid to the armature of which it is attached.

Abstract: This kickless water-cooled resistance welding cable consists of an elongated elastomeric hose containing two pairs of stranded copper wire conductors or "ropes" of opposite alternating polarities mounted in the four peripheral grooves of an elongated elastomeric separator of cruciform cross-section with a central cooling water passageway therethrough. These grooves are of circular cross-section such that when the separator is twisted longitudinally the groove side walls compress and tightly grip the conductors while these are cooled by water flowing into the grooves through perforations from the passageway. The conductors are connected at their opposite ends to copper terminals, each of which includes a pair of elongated semi-cylindrical copper terminal halves with an insulating strip between them and with two pairs of circumferentially-spaced bosses containing cable conductor sockets arranged in alternating polarity.