Abstract: A rotary cutting blade assembly for removing rubber tread material from a pneumatic tire carcass prior to texturizing and finishing the tire carcass for retreading includes a cutting wheel rotatably mounted on an arbor. The cutting wheel includes a plurality of pockets adapted to receive and mount a plurality of cutting blades, which blades present an angular cutting edge which engages the tread material on the tire carcass substantially parallel to the carcass to slice and to remove the tread material from the carcass.

Abstract: A tire building apparatus having two end drums disposed on respective opposite sides of an intermediate drum, with the intermediate drum embodying an expandable sleeve for pneumatically expanding and supporting the portion of a tire carcass to be disposed between the beads of a completed tire, 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 sleeve, 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 and end drums being readily removable and replaceable for changing the size of the tire to be produced by the appara

Abstract: A protector device for preventing the passage of elongated members such as silverware, and the like, into a drain outlet, the device having a baffle member mounted within an annular member for the passage of liquid therebetween and with the annular member adapted to be disposed around the drain outlet in axially outwardly spaced relation thereto for the passage of liquid radially inwardly past the annular member into the drain outlet.

Abstract: A carburetor for use with internal combustion engines, wherein a jet spray of fuel is directed into the intake manifold of the engine, and the amount of fuel so sprayed under pressure is controlled by the movement of a diaphragm actuated in response to the volume of air entering the carburetor housing, so that the air-fuel mixture always will be in such proportions that all of the fuel will be burned, thereby substantially eliminating the exhaust of unused fuel to the atmosphere and the resulting air pollution, as well as increasing the engine's operating efficiency, and improving the economy.

Abstract: Power drive apparatus is adapted for mounting beneath the forward or lower row of a telescopic seating system. The drive apparatus includes a frame which is adapted to be connected to the forward row of the seating system and extend beneath it. A reversible electric motor is mounted centrally of the frame with its axis transverse of the direction of travel of the unit. First and second rollers (as distinguished from wheels or endless track) are mounted to the frame for rotation about respective horizontal forward and rear axes extending transverse of the direction of movement of the rows between the use and storage positions. Each roller has an exterior covering of compressible, resilient material, preferably synthetic rubber. The rollers are preferably located in front of and behind the motor respectively to provide a four-wheel-drive effect. The apparatus fits beneath the deck of the lowest row in the seating system and can easily be retrofitted to an existing system.

Abstract: A guidance system for guiding a plurality of unmanned vehicles along a traffic layout includes a plurality of code devices which divide the traffic layout into a plurality of zones and identify each zone by a unique identifying code. Each vehicle includes control circuits having code sensors which sense the identifying code as the vehicle enters a zone and provide data to a present memory which stores present address data representing the identity of the zone in which the vehicle is now traveling. A past memory, which receives data from the present memory, stores past address data representing the identity of the zone in which the vehicle was previously traveling. The control circuits further include a time slot generator which provides timing signals defining a plurality of time slots each of which is assigned to a different zone.

Abstract: An adjustable width plow having at least three aligned sections with adjacent ends of the sections joined for relative motion about horizontal axes includes a forward furrow wheel mounted to the forward end of the front plow section for caster movement, a rear furrow wheel mounted to the rear end of the rear plow section for caster movement, a first or forward pair of land wheels supporting the plow adjacent the rear end of the forward section, and a second or rear pair of land wheels supporting the plow adjacent the rear end of the intermediate plow section. A steering mechanism controls the forward land wheels in turns in response to the turning of the tractor pulling the plow, and this steering mechanism also adjusts the forward land wheels for proper steering and toeing as the width of the furrow cut by the plows is adjusted. The rear land wheels are not steered in response to the turning of the tractor, but they are adjusted for proper steering and toeing when the plow units are adjusted.

Abstract: The apparatus includes a pull-type frame carried by support wheels. The frame is vertically adjustable relative to the support wheels. A first gang of discs is mounted in a forward position on the frame. The discs are widely spaced relative to each other to leave alternate strips of tilled and untilled soil. The strips of untilled soil are of substantial width, approximately equal to the width of the tilled strips. The support wheels are preferably located behind the first gang of discs in the strips of untilled soil. A second gang of discs is mounted on the frame behind the first gang. Disc blades on the second gang are located to work in the untilled strips left by the first gang; and these discs are oriented to displace soil in a lateral direction opposite to that in which the first gang displaces soil. Under high speed operation, the soil dug by each disc is thrown over the adjacent strip to fill the row formed by the adjacent disc in the forward direction.

Abstract: A structure for a hexagonal building has a novel steel frame including a connection which joins tension ring members, columns and roof trusses together with threaded fasteners. The upper ends of the rafters are joined by a tension ring. The bottom of each column is secured to a base by means of an adjustable base plate. Rafters spanning between the tension ring and compression ring are located between adjacent trusses. The frame is adapted to receive prefabricated sandwich-type panels for both roof and walls.

Abstract: The apparatus receives wooden pallets horizontally with the pallets moving in a direction parallel to the stringers and forms a vertical stack by depositing a partial stack of pallets on each new pallet and lifting all of the pallets to receive a new one. The apparatus is adjustable for pallet sizes over a wide range.

Abstract: An electronic thermostat includes digital electronic apparatus for simulating heat anticipation so that in operation, the temperature of the room being heated or cooled does not exhibit excessive overshoot. A sensor generates a signal representative of temperature in the room. In a preferred embodiment, the system compares the temperature signal with a composite set point signal. The composite set point signal is generated by a data processor to effect the following system characteristics: (1) when the temperature signal remains constant and is equal to the set point, the system can cycle approximately six times an hour with a fifty percent duty cycle; (2) a relatively small change in temperature or set point will modify the duty cycle substantially; and (3) if the temperature and set point signals differ by more than a predetermined amount, the system will lock on or off, depending on which is greater.

Abstract: A control arrangement for a fuel ignition system having pilot and main valves in which the energization of the operate windings of the pilot and main valves, which are connected in series, is controlled by a silicon controlled rectifier. The SCR is enabled at the start of each ignition cycle by trigger pulses provided by a pulse generating circuit and when enabled, the SCR provides a shunt circuit path around the main valve winding permitting the pilot valve winding to be energized at its operating level effecting pilot valve operation and preventing the main valve from operating. When a pilot flame is provided, a capacitor of a flame sensing network is charged by flame rectified current, generating an inhibit signal for the pulse generating circuit which causes the SCR to be cut off, interrupting the shunt path to allow the main valve winding to be energized, effecting main valve operation.

Abstract: An adapter circuit for retrofitting an oil burner control system with a flue damper includes a source of energy in circuit with the thermostat for energizing the damper motor in response to a call for heat to open the damper. A first relay in the adapter circuit includes a pair of contacts for simulating the operation of the thermostat contacts. When the damper is open, this relay is energized, and its contacts close, simulating the operation of the thermostat after the damper is opened, to energize the burner control circuit, thereby energizing the burner motor and ignition. A second relay in the adapter circuit senses whether the burner motor is energized; and when the burner motor is de-energized, this relay initiates a time delay after which the adapter circuit closes the damper.

Abstract: An ink supply cartridge, for use with an insignia applying device having a chassis, a movable insignia element mounted within the chassis and a support member mounted to the chassis and the movable insignia element and pivotally movable into and out of the path of travel of the movable insignia element, includes a housing containing an ink supply portion and having an ink applying member and a retainer member for attaching the ink supply cartridge to the support member. The ink supply portion is adapted to receive an ink reservoir member which is adjustable to control the flow of ink to the ink applying member and the insignia element as desired. The attached ink supply cartridge is positioned to be engageable with the insignia element to ink the insignia element when the element is within the housing in the at rest position.

Abstract: A motor overheating protection circuit includes an enabling circuit which responds to a trigger signal provided by a reset circuit upon application of power to the protection circuit to enable a motor drive circuit to effect energization of the motor. A temperature sensing circuit provides a control signal indicative of the temperature of the motor, and should the control signal exceed the set point of a threshold detecting circuit of the enabling circuit, indicative of overheating of the motor, the enabling circuit inhibits the motor drive circuit deenergizing the motor. Once the motor has been deenergized as the result of an overheating condition, the reset circuit maintains the enabling circuit locked out until the protection circuit is deactivated and then reactivated.

Abstract: A switch mechanism includes a fixed contact bar on which two or more contacts may be mounted. A movable contact is associated with each of the fixed contacts. Two independent toggle mechanisms are provided, each responsive to a different pressure-responsive displacement actuator for selectively actuating one or more of the movable contacts. In one embodiment having two normally open and one normally closed set of contacts, one toggle mechanism is connected by a sliding yoke to the movable contacts of one normally open set and the normally closed set, and the other toggle mechanism is connected by a second, independent sliding yoke to the movable contacts of the other normally open set and the normally closed set. Hence the normally closed contacts (which may be used to de-energize a compressor motor) are opened if either pressure limit is exceeded, but only the normally open set is disclosed which is associated with the tripped toggle mechanism. This may be used to indicate an alarm.

Abstract: A spring assembly is carried by a mounting casting. The mounting casting includes a receptacle which is adapted to mount to a horizontal frame member by means of a vertical bolt which, when tightened, adjusts the elevation of the spring assembly by rotating the mounting casting about the frame member due to a shim effect achieved by the slight off-parallel alignment of the receptacle and the axes of the springs. This raises the spring assembly to take its weight off the draw bar and makes it easier to telescope the draw bar. A spring casting includes upper dogs for mounting an actuating lever which is rotatable between a latching and an unlatched position by vertical motion. A latch member on the draw bar is locked between the spring casting and the lever, but is released when the lever is lowered to permit the draw bar to be extended to the rear for alignment with a trailer hitch. Other improvements permit the use of coil springs without grinding the ends flat.

Abstract: An improved panel wall system is disclosed with means for interconnecting the panels in any desired angular relationship while providing a sight barrier through the joint. As many of the panels may be connected as are desired; and they may be placed in any desired configuration. Each panel includes an insert assembly to provide its exterior face; and these may be removed and changed, if desired. A full line of shelving and cabinets may be assembled to the panels with a limited number of interchangeable components. The cabinets include a flipper door which will not rack when opened or closed, and which slides beneath the top of the cabinet in the open position, yet has its edges flush with the top and bottom of the cabinet in the closed position.