Abstract: A pilot assembly includes a base having a cylindrical side wall which holds an electrode subassembly and glass preforms in place for fusing the glass to secure the electrode subassembly to the base. Prior to fusing, a spark electrode is assembled by inserting it into a metal clip receptacle held in a ceramic insulator body forming a part of the electrode subassembly. A pilot tip and orifice subassembly are secured to the base. Fusion of the glass and brazing of the metal including the high tension clip to bring it to spring temper for connection to a plugged wire are accomplished in a single step of heating. The pilot tip includes a locator member which holds the spark electrode in place during fusing and establishes the spark gap. It is removed after fusing.

Abstract: A control circuit for a fuel supply and ignition control system controls the operation of pilot and main valves of the system and of a motor which controls the positioning of a vent stack damper plate to normally close the vent stack and to open the vent stack at the start of each ignition cycle. At the start of each ignition cycle, a start relay is operated to energize the pilot valve and a spark generator for a trial for ignition interval defined by the excursion time of the damper plate as it is driven to the open position. When the pilot fuel is ignited, a flame sensing circuit operates a flame relay which completes a holding path for the pilot valve and when the damper plate reaches the fully open position, limit switches connect the main valve to the holding path and deenergize the drive motor and the start relay.

Abstract: A concrete vibrator machine movable longitudinally of a roadway, or the like, with a vibrator unit movable back and forth transversely of the roadway, with the vibrator mechanism thereof disposed in the concrete to be vibrated, and with the vibrator mechanism being raisable and lowerable relative to the concrete to be vibrated.

Abstract: The bottom wall of a refuse receptacle contains a bin which opens therethrough into the interior of the receptacle to receive a roll of separably-connected bag-type liners. The bin opening is closed by a removable cover which seats flush with the receptacle bottom wall and has a slot through which the liners are dispensed into the interior of the receptacle. The cover also has tabs along two opposite sides which frictionally catch beneath the bottom wall of the receptacle to removably receive the cover in place.

Abstract: A sealing ring is disclosed which is formed of an elastomeric material wherein the cross section thereof has a plurality of substantially flat surfaces, and wherein the inner and outer diameter surfaces, which are the sealing surfaces thereof, are molded surfaces. The remaining surfaces are machined or cut surfaces. The preferred number of surfaces or faces in cross section is 8, and this has been found to give the best results, although other numbers of surfaces may also be used. Since the ring itself is not a molded ring, but has only the inner and outer surfaces thereof which are molded, there is also disclosed a novel method of making such a ring, as well as a novel apparatus for use in a carrying out the method of making the ring, wherein a molded elastomeric sleeve is provided and wherein inclined surfaces are cut therein in such a way that when the ring is severed from the sleeve it will have the desired number of flat surfaces.

Abstract: An anchor tile hanger for anchoring refractory brick to the roof of a furnace structure is comprised of a pair of vertically spaced apart plates having aligned cutouts in the upper edges which cutouts are adapted to engage the lower horizontal portion of a suspended I-beam. Attached to each of the ends of the vertically aligned plates are a pair of U-shaped rods each having a bight portion turned inwardly and facing one other which are adapted to engage and anchor the refractory tile or brick. The cutouts in the vertical disposed plates include overhang portions for positioning the tile hanger about the lower horizontal portions of the I-beam and clearance areas which facilitate assembly and insection of the tile hanger about the lower horizontal portion of the I-beam.

Abstract: A fluid distribution apparatus embodying a reel having a multi-hose flexible conduit mounted thereon and connected thereto for feeding working fluid through one hose and drawing a vacuum through the other hose.

Abstract: A dishwashing machine includes a plurality of sections through which a soiled article to be washed is transported. A dishwashing machine includes a detergent pre-wash section, a detergent-wash section, a chemical power rinse and final clear water rinse section.

Abstract: An extrusion die for forming a multi-passage, elongated tubular member having transverse passageways formed between adjacent longitudinally extending passageways during the extrusion of the tubular member.

Abstract: A tire building apparatus having two end drums disposed on respective opposite sides of an intermediate drum, with the intermediate drum embodying a perforated sleeve for supporting the portion of a tire carcass to be disposed between the beads of a completed tire and for permitting air to flow therethrough into direct contact with the aforementioned tire carcass for pneumatically expanding the latter, and with the end drums carrying bead lock clamping members and ply turn-up bags that are movable inwardly toward the longitudinal center of the apparatus during the aforementioned expanding of the tire carcass, the bags being of dual-compartment construction, having inner compartments for effecting ply turn-up operations at air pressures greater than the air pressure for expanding and supporting the tire carcass, and outer compartments for effecting additional sidewall-applying operations at internal air pressure less than the pressures in the inner compartments, and with the components of the intermediate drum

Abstract: A retractable bead setter assembly of the present invention for use with a tire building machine is comprised of a tire bead placing and end ply turn-up bag pusher means having a plurality of first segment elements movable radially therein and a plurality of alternately spaced second segment elements movable both radially and axially. The bead portion of the bead and filler material is positioned adjacent to the first segment elements and firmly gripped between the first and second segment element. The tire bead placing and end ply turn-up bag pusher means is axially moved inwardly to an inward bead set position perpendicular to the axis of rotation of the tire building machine and the clamp lock means is expanded radially to lock the tire carcass material to the bead.

Abstract: A fuel supply and ignition control system for controlling the operation of pilot and main valves in an intermittent pilot type system. At the start of an ignition cycle, the pilot valve is operated to supply fuel to a pilot outlet for ignition by sparks generated by a spark generating circuit. When the pilot fuel is ignited, the pilot flame bridges the spark gap, and a flame sensing network, which is connected in circuit with the spark electrodes, generates a flame signal which is applied to an enabling circuit which responsively effects operation of the main valve. The enabling circuit includes a controllable switching device which in one embodiment, is maintained disabled in the absence of a flame signal and is enabled to cause a flame relay to operate and energize the main valve when a flame signal is provided.

Abstract: A tracheotomy tube of the type embodying inner and outer cannulas, with the inner cannula being removable from and insertable into the outer cannula and having a flange projecting outwardly therefrom in position to be disposed in a recess in the outer cannula for holding the cannulas against rotation relative to each other, and with the outer cannula embodying a collar rotatable into and out of overlying relation to the recess for selectively securing the flange in the recess and permitting withdrawal therefrom, respectively.

Abstract: An ignition system for use with a source of dc (or full-wave-rectified) power without the need for an inverter includes a flame sensing relay and a checking relay interlocked to achieve lockout if the proper starting sequence or timing are not met or if a flame-out occurs during operation. The checking relay is energized in response to a call-for-heat signal to isolate the flame detection circuitry from its source and commence a trial-for-ignition period in the flame detection circuitry which includes a timing circuit. The timing circuit actuates the flame-sensing relay during the trial-for-ignition period. The flame sensing relay energizes the fuel valve and a spark generator to ignite the fuel. If a flame is detected during the trial-for-ignition period by a flame probe, the timing circuit is disabled and operation continues until the call for heat is terminated as long as the flame is sensed. Another circuit senses flame at the spark gap and disables the spark gap generator after a flame is established.

Abstract: Control apparatus for a tape recorder includes a Central Processor Unit (CPU) and a Control Panel having data entry switches, mode selection switches, speed selection switches, a multiposition function select switch and other controls and a display, all of which communicate with the CPU. The system enables the operator to enter commands to be executed by the CPU in controlling the tape transport as predetermined footage locations on the tape (such as Beginning of Data or End of Data) or at a predetermined value of parameters, such as tape pack diameters of the reel being emptied or filled (Beginning of Tape or End of Tape).

Abstract: Control apparatus for a tape recorder includes a Central Processor Unit (CPU) and a Control Panel having data entry switches, mode selection switches, speed selection switches, a multiposition function select switch and other controls and a display, all of which communicate with the CPU. The system enables the operator to enter commands to be executed by the CPU in controlling the tape transport at predetermined footage locations on the tape (such as Beginning of Data or End of Data) or at a predetermined value of parameters, such as tape pack diameters of the reel being emptied or filled (Beginning of Tape or End of Tape). The operator may enter data to set or change such locations or other parameter; and he may change commands in the CPU via the data entry switches. The operator may retrieve data or command signals from the CPU and view them on a display. A footage indicator is stored and continually updated in the CPU, and it may be changed to any desired footage setting by the operator.

Abstract: A multi-stage pump embodying an inner housing of modular construction and embodying a plurality of axially aligned casing rings having impellers rotatably mounted therein, the casing rings being removably mounted relative to each other and, together with the impellers disposed therein, each comprising a respective stage for the pump, with an outer housing mounted around the inner housing, in spaced, surrounding relation thereto to thereby afford an annular space between the inner and outer housings, with end sections being releasably secured to opposite ends of the outer housing in position to clamp the modules of the inner housing together, and with a passageway through the pump being afforded by the casing rings, the impellers, a radial opening through one end of the inner housing, the space between the inner and outer housings, a radial opening through the outer housing and a connector in communication with the last mentioned opening.

Abstract: A heat exchanger embodying an elongated tubular member having a passageway for working fluid extending longitudinally therethrough, and having external fins projecting outwardly from the tubular member in position of define passageways extending transversely thereacross, and the method of making the same.

Abstract: An inflatable seal for use in an adjustable dockboard unit for sealing the unit against the flow of air therethrough into and/or out of the building in which the dockboard is being used.