Abstract: A paper cutting apparatus for tearing off a sheet of paper of any desired length from a paper roll. The apparatus includes a cutter comprising an elongated, arcuate-shaped plate, which is detachable placed over the paper roll and between the sides of a paper roll holder. The plate includes a notch at each side edge to loosely engage the sides of the holder and a serrated cutting edge along its front edge.

Abstract: An animal food product dispensing apparatus comprising a housing having a food dispenser port and a hopper, or similar storage container for storing food, mounted inside with a feed port through which food is transferred by gravity flow to an articulated chute assembly. The articulated chute assembly has walls for guiding food between the feed port and the dispenser port. A reciprocating driver element coupled to the chute assembly moves portions of the chute assembly up and down with respect to a fixed pivot point adjacent to the feed port between food collection and dispensing positions. A lower support can be used adjacent to the storage container for supporting a lower portion of the storage container and guiding food into the articulated chute assembly. The reciprocation drive comprises a push bar attached between the chute assembly and a cam driven by an electric motor at a predetermined rate.

Abstract: A method of treating a diver's suit constructed of foam core material having a cover material on both sides, including the step of hydrostatically compressing the suit to permanently compress the cells in the foam core material to provide a suit which has very little compression left and which changes little in thermal conductivity and buoyancy with depth.

Abstract: An amusement apparatus in which a player controls positioning of a pick-up device such as a mechanical grabber having moveable claws or pincers over a floor area on which prize objects are placed. The floor area is rotatable and the pick up device is attached to an overhead transport mechanism for moving it back and forth across a portion of the floor area, so that the pick up device can cover the entire prize area during one complete revolution of the floor. Several pick up devices may be provided at spaced positions around the floor area so that more than one player may use the device at the same time. The floor area is preferably circular, and rotates around its center axis with the pick up devices travelling back and forth between the center and outer edge of the floor area. The entire device is enclosed in an outer housing which is at least partially transparent.

Abstract: A backplane structure for a computer includes first and second spaced apart backplane sections each having a series of spaced, vertical connector assemblies for receiving edge connectors of a series of parallel spaced apart circuit boards in a vertical orientation. Spaced bus lines run horizontally across each backplane section for interconnecting appropriate pins of the respective circuit board connectors. One of the backplane sections receives circuit boards of the memory section of a computer, and the other section receives the computer functional unit boards. A third backplane section extends between the first and second sections and has a series of spaced horizontal connector assemblies for receiving connector edges of a series of circuit boards in a horizontal orientation. At least some of the horizontal connector assemblies receive circuit boards of the buffer section of a computer.

Abstract: An air conditioner wherein supply air is first passed through the supply air passages of an air-to-air heat exchanger, then over a first refrigerant-to-air heat exchanger, into the space to be air conditioned, and return air from that space is passed throught the air-to-air heat exchanger, through a second refrigerant-to-air heat exchanger, and discharged to atmosphere, the refrigerant heat exchangers being the condenser and evaporator of a closed refrigeration system driven by a heat pump compressor.

Abstract: An improved method of detecting abnormal cell mass in animals, particularly tumors, wherein a fluorocarbon emulsion and a lysophosphatide or proteinaceous material are administered to animals causing the fluorocarbon to be taken up by the cell mass in hithertofor unobtainable amounts, thus rendering it readily detectable by a variety of physical or chemical methods.

Abstract: An animal cage comprises an outer frame defining the peripheral edges of a box like enclosure, and a series of wall panels for releasably mounting in respective faces of the enclosure to form spaced side, end, and top and bottom walls of the enclosure. Each panel is held in the surrounding frame by spring loaded latch pins adjacent each end of the frame which are urged into corresponding openings in the frame and can be released at either end for swinging the panel open about the opposite end latch pin, or released at both ends for removing the panel from the frame. The frame is releasably securable to one or more additional frames arranged one on top of the other, side to side, or end to end. The internal wall panels may be removed to increase the height, width or length of the enclosure, or left in place to provide an assembly of separate cages for different animals.

Abstract: A collapsible wire cage has opposite side walls, upper and lower walls, and end walls of wire grille construction defining an enclosure. Each end wall is pivoted at one side edge to a respective one of the side walls and has a releasable locking mechanism at its other side edge for releasably securing it to the other side wall. The upper and lower walls are each formed in two panel sections, one of which is pivoted to one of the side walls and the other of which is pivoted to the other side wall. The panel sections are pivotally connected together to allow them to pivot between an expanded position in which they are coplanar and a folded position in which they are pivoted inwardly and flattened against one another to collapse the cage. A releasable locking mechanism is provided on each of the collapsible walls to retain them in their expanded, coplanar position. In an alternative, the side walls may be collapsible with the end walls pivotally secured to the upper and lower walls.

Abstract: Human-human hybrid cell lines that synthesize and secrete monoclonal antibodies against antigenic determinants on cancer cells, generated by fusing a human lymphoblastoid B cell line to human lymphocytes, and therapeutic and diagnostic uses of the monoclonal antibodies in both cancer treatment and research is disclosed.

Abstract: A bi-directional databusing system is used in a computer that superposes vector and scalar operations. The computer consists of a main memory, a plurality of pipelined functional units, and a buffer for staging scalar and vector data objects between the main memory and the functional units. The busing system supports two-way data transfer during each of a succession of bus transfer cycles in which data is transferred to the buffer during one phase of a cycle, and from the buffer during a second cycle phase. The busing system includes three sets of bi-directional memory databuses, one for transferring scalar data objects between the main memory and buffer unit, and the other two for transferring vector data objects between the main memory and the buffer.

Abstract: A device for supporting the hinged cover of a barbecue brazier partially open in any one of a plurality of selected positions comprises an elongated planar support member having a plurality of upwardly orientated cover hooks along its length for selectively engaging the rim of the partially opened cover, and a downwardly facing mounting member or hook adjacent one of its ends for mounting the support member vertically on the rim of the brazier. A handle member is permanently or removably attached to the support member for handling the support member when it has become hot through use. The handle member in one embodiment is secured to the support member by means of a screw threaded projection on the handle member which engages a screw threaded bore in the support member.

Abstract: A solenoid device for treatment of body tissue such as bones or other regions with pulsed signals comprises a flexible flat belt for encircling a body part or cast surrounding a body part containing tissue to be treated. The belt has a plurality of parallel conductors extending along its length and has its opposite ends offset by one or more conductor spacings. The resultant aligned conductor ends are connected together to form at least one continuous coil, with the resultant unconnected outer conductor ends at opposite sides of the belt comprising inputs across which a suitable electrical signal can be connected. An adjustment device or buckle is mounted on the belt to allow the diameter of the belt to be adjusted. The buckle traps a doubled over portion of the belt circumference which is adjustable in length to change the diameter of the device to closely fit the underlying body part or cast.