Abstract: A quench roll (20) for a glass sheet tempering system of the roller conveyor type includes a helical support (44) with a construction that does not mark conveyed glass sheets but which is nevertheless capable of withstanding breaking of glass sheets without being cut so as to require repair. The helical support (44) is wrapped about a shaft (42) of the roll (20) and includes a core (46) as well as a nonmetallic outer covering (50). The outer covering (50) is preferably a synthetic organic polymer such as silicone rubber or Teflon and, for best results, the covering has an outer sleeve (50a) of ceramic fibers. The core (46) is preferably metallic and made of wire strands (52) that facilitate wrapping thereof in the helical configuration. Spring end connections (54) disclosed prevent unwinding of the helical support (44) during glass sheet conveyance.

Abstract: The disposable filter device of the invention is particularly suited for testing for the amounts of tars and nicotine in cigarettes and comprises a housing having two components (2,4) one of which has a cylindrical portion (8) and the other of which has an annular flange (48) whereby the two members can be telescoped together with a filter disc (6) therebetween for collecting the tars and nicotine. The member with the cylindrical portion is formed of a relatively soft resilient substantially non-hygroscopic polymer and the member with the annular flange is formed of a relatively hard substantially non-hygroscopic polymer. The resiliency of the member with the cylindrical portion in combination with the relative hardnesses of the members and the particular shapes of the telescoped portions (12,48) enables the two members to be removably secured together with an excellent seal therebetween.

Abstract: A wheel and engine support system comprising a vehicle body-mounted differential and swing-type live axles connected to the driving wheels, a dead axle in the form of a rack consisting of two cross members spaced fore and aft of the differential and two longitudinally extending wheel-bearing support members rigidly interconnecting the cross members inboard of the wheels, a universal pivot joint connecting one of the dead axle cross members to the vehicle body; and an engine supporting frame articulated to the vehicle body and a pair of links interconnecting the body and the engine supporting frame.

Abstract: A trash can hauler including a pair of longitudinally extending, skeletal trash can supports interconnected by U-shaped beam members. The supports include lower beams to support the bottom of a trash can. The supports include front, rear and upper beams adjacent the sides of the trash can to prevent lateral tipping thereof. The front and rear beams of the supports have telescopic connections to the upper and lower beams. A front beam member connected to the front beams has a pair of ground-engageable wheels rotatably secured thereto and a rear beam member connected to the rear beams has a ground-engageable portion. In one embodiment the connections between the supports and the front and rear beam members as well as the connections between the front and rear beams and the upper and lower beams are adjustable to enable positioning of the supports relative to the front and rear beam members to support any given size trash can.

Abstract: A unitary tubular axle (12) is formed to include an end (18) having a support section (22) of a completely solid cross section located between a generally vertical kingpin bore (24) and a tubular intermediate portion (16) of the axle. Both ends (18) of the tube are formed with such an end construction to provide a unitary front axle for both wheels. Forming proceeds by initially reducing the size of the outer tube diameter at an end thereof while maintaining roundness. Axial forging of the tube end preferably by a closed die having a semispherical closed end then provides an axle end having a solid cross section and a distal semispherical shape. Subsequent axial forging of the solid tube end by another closed die then provides upper and lower projections (26, 28) in which upwardly and downwardly facing holes are then forged to increase the width thereof while leaving a web between inner ends of the holes.

Abstract: Sheet glass is heated during conveyance within a furnace housing having a fixed roof and vertically movable side doors that define side slots through which ends of conveyor rolls project outwardly to be supported and frictionally driven by continuous drive loops slidably driven over external support surfaces that extend alongside the side slots. A vacuum holder of the apparatus is positioned within the furnace housing above the conveyor and has a downwardly facing surface with spaced openings in which a vacuum is drawn to receive a glass sheet from the conveyor and support the sheet above the conveyor. The holder surface is disclosed as being both planar and curved and as having a porous cover of ceramic fibers so as to distribute the vacuum and prevent marring of the glass as it is supported. A greater vacuum is drawn to initially support the glass and a lesser vacuum is subsequently drawn to prevent glass deformation at the spaced openings.

Abstract: A glass sheet bending system (10) disclosed includes a horizontal roller conveyor (16) having a roll operator for operating a plurality of conveyor rolls (18) adjacent an associated bending apparatus (22) to control conveyance thereon independent of conveyance on the other rolls of the conveyor. In one embodiment, the roll operator comprises a roll shifter (24) for shifting the rolls (18) along the direction of conveyance during continued rotational driving. In another embodiment, the roll operator comprises a positioning drive (140), that drives the conveyor rolls (18) adjacent the bending apparatus (22) independently of the other rolls of the conveyor. Both embodiments reduce the rate of glass sheet conveyance as the holder receives each glass sheet to reduce sliding at a surface (62) of the holder.

Abstract: A seat pad support (12) disclosed includes at least one strip (22,24) of generally flexible tape which is preferably of the pressure sensitive type extending laterally between elongated supports preferably embodied by wire torsion bar springs (16) that cooperatively support a foam pad on a seat frame (14), whereby the tape connection of the springs facilitates storage, handling, and assembly. In the preferred construction, two end strips (22,24) of the tape respectively connect end torsion bars (28,30) of the springs (16). Each end tape strip (22,24) is folded and bonded to itself and preferably includes recesses (46) associated with the torsion bars (28,30) connected thereby so as to facilitate connection of the springs to the frame.

Abstract: A conveyor drive system including an improved control circuit for a glass manufacturing apparatus transports a glass sheet through a glass processing station. The conveyor drive system includes first and second conveyor drives disposed on opposed lateral sides of the station. Each of the conveyor drives includes first and second pulleys and a continuous drive loop trained thereover. The glass plate is supported on a plurality of elongated rollers that extend between the conveyor drives and have their opposed ends supported on and in frictional engagement with the continuous drive loops. A drive motor applies drive torque to the first pulleys, and a pair of counter-poised drive motors apply a counter-torque to the second pulleys. The control circuit for controlling the energization of the first drive motor and the pair of counter-poised drive motors includes a feedback circuit which provides degenerative speed feedback for stabilizing the motion of the conveyor drive system.

Abstract: A kit for assembling a geodesic structure is disclosed as including a plurality of polygonal panels (12) preferably of triangular shapes so as to be assembled to define a sphere (10). Each panel is of a unitary construction molded from plastic and includes a first set of male lugs (20) and a second set of female lugs (22) projecting from its sides (14). The female lugs (22) are arranged in pairs and spaced along the length of the associated panel side so as to receive a male lug (20) on one side of another panel in order to provide a connection (16) therebetween. Outer ends on both the male and female lugs include connection surfaces (24, 26) that snap into engagement with each other as the male lug (20) of each connection (16) is inserted between the associated female lugs (22) in order to secure the panel sides (14) and thereby prevent relative movement between the panels lengthwise and transversely with respect to the length of each side.

Abstract: An improved method and apparatus (12) for deep bending glass sheets disclosed provides minimal sliding of the glass sheet with respect to a curved bending mold (44) utilized, insures accurate positioning of the glass sheet on the mold for bending to the desired shape, and permits relatively abrupt end bends to be performed. A heated glass sheet (G) is initially supported against a downwardly facing surface (26) of a holder (24) above the curved bending mold (44) which has an upwardly concave shape. An upward gas flow (49) from a gas supply unit (48) at a central portion (50) of the glass sheet (G) is supplied and continued as opposite extremities (52) of the glass sheet are released and dropped downwardly onto the mold. Thereafter, termination of the upward gas flow (49) from the gas supply unit (48) releases the central portion (50) of the glass sheet (G) for bending on the mold (44). After the bending, a mold is moved to a quench unit (22) for tempering of the bent glass sheet.

Abstract: Apparatus for conveying bulk material at a controlled rate includes a pressure vessel from which material may be fed downwardly into a container under the influence of pressure applied to the pressure vessel. Located below the container is a receptacle or delivery tube into which bulk material may be fed. The container has a transverse partition with at least one orifice member therein and means are provided for balancing the pressure at a position below the partition with a position above the material located on the partition.

Abstract: A loader (10) for a grinding machine includes a loading member (30) with at least one resilient finger (32) thereon for gripping a workpiece (14) to be ground by movement of the loading member in a loading direction as a resiliently biased workpiece positioner (34) initially counteracts force applied to the workpiece by finger deflection. Continued movement of the loading member (30) after the gripping first moves the workpiece positioner to a nonblocking position and thereafter moves the workpiece to an associated grinding machine. Preferably, a pair of the fingers (32) and a rigid locator (44) cooperate to position and grip a joint race (14) of an annular shape with ball grooves to be ground. A pair of spring biased blocking members (34) preferably embody the workpiece positioner and are pivotally mounted in alignment with a hopper (16) in which workpieces to be ground are stocked.

Abstract: A destination sign for buses is provided with means for adding a route number to the display device independently of the destination name displayed on the sign. The destination sign is of the electronic type in which a long destination name is displayed by showing two or more word units in time sequence on the same display device (10). The word units are stored in memory (18); a destination name selector (14) and logic means (16) addresses the desired combination of word units in sequence. A route number selector (24) generates a route number signal independently of the destination name selector. The memory and the route number selector are selectively coupled by switching means (20) to a character generator (22) which controls the energization of the display device according to the characters to be displayed in the destination message.

Abstract: In accordance with the invention the glycosylated hemoglobin in a blood sample is electrophoretically separated from the other constituents by including dextran sulphate in the electrophoresis buffer, or by mixing a solution of the dextran sulphate with the blood sample prior to the electrophoresis, such that the blood is in contact with dextran sulphate during the electrophoresis. The presence of the dextran sulphate results in a clear and well defined electrophoretic separation of the glycosylated hemoglobin from the non-glycosylated hemoglobin, thereby enabling accurate glycosylated hemoglobin determination.

Abstract: A solid state relay is disclosed which is failsafe in the sense that it is prevented from failing in a closed circuit condition. The relay comprises a main switch adapted to be connected in series with a load and voltage source and responsive to relay opening and closing signals. A secondary switch is connected in parallel with the load and is switched a sense opposite that of the main switch by the relay opening and closing signals. If the main switch fails to open, the secondary switch is closed and the load is short circuited by it. Additionally, a fuse in series with the main switch is blown by the current through the secondary switch to latch the relay in the open circuit condition. Self-checking circuits are provided to latch the relay an open circuit condition if there is any circuit failure.

Abstract: An auxiliary panel (12) for a bedding unit (10) is disclosed as including a peripheral wire (24) on the load supporting surface of the unit and a plurality of torsion bar springs (30 or 42) extending between opposite portions of the peripheral wire so as to resiliently provide increased firmness. Distal end torsion bars of each torsion bar spring are connected to the peripheral wire to provide the cooperation therebetween during use. Different embodiments of the panel incorporate sinuous wire type springs (30) and formed wire type springs (42) extending both longitudinally between opposite longitudinal portions (26) of the peripheral wire as well as laterally between opposite lateral portions (28) of the peripheral wire.