Abstract: The present invention provides a hermetic refrigeration compressor installation comprising an outer housing containing a refrigeration compressor, a plurality of indentations in the outer housing, a plurality of resilient grommets each having a grommet tip received within a respective one of the indentations, and a bonding between the grommets and the indentations for securing the grommets therein. Further provided is a base separate from the refrigeration compressor and outer housing, and projections on the base for mounting the grommets securely thereon. The method of the present invention comprises forming a plurality of indentations in the outer housing, providing a plurality of resilient grommets each having a grommet tip, adhesively securing each one of the grommet tips in a respective one of the indentations, and connecting the grommets securely to thebase.

Abstract: A gas power burner system is provided for a commercial-size food preparation oven and generally comprises a gas power burner connected in series by a gas supply line to a mechanical modulating valve and an electrical on-off valve. The electrical on-off valve initiates or terminates gas flow to the mechanical modulating valve and the gas power burner. A temperature sensing device disposed within the oven and operably connected to the mechanical modulating valve senses temperature fluctuations and causes the mechanical modulating valve to selectively vary the gas flow rate to maintain the desired temperature within the food preparation oven.

Abstract: A safety device for an implement powered by a four-stroke cycle internal combustion engine having a deadman control for reducing the time required to stop the engine when the deadman control is released is disclosed and includes a switch operable upon release of the deadman control to disable the engine ignition system and an arrangement for opening an engine valve at a time other than its normal opening time in the engine cycle. In one preferred embodiment an engine exhaust valve is opened about maximum at 25 degrees prior to top deadcenter position of the engine piston during its compression stroke.

Abstract: 4-Fluorobenzophenone derivatives of 4,4'-difluorobenzophenone are produced by effecting a halogen-fluorine exchanging reaction between the corresponding 4-halogenobenzophenone derivatives or 4,4'-dihalogenobenzophenone and an alkali fluoride.The reaction is carried out by heating in an organic solvent. After distilling off the solvent from the reaction product mixture, the end product is isolated by extracting with a solvent. Alternatively the end product is isolated by distillation.

Abstract: The present invention relates to a speed control and indication system for a mechanical press. In order to enable the press to operate at its full running speed on the first cycle thereof after actuation of the clutch, the flywheel is driven at a speed higher than the set running speed so that as the mechanical inertia of the drive mechanism will cause the press to slow down to its set running speed. The control circuit modifies the speed control voltage after actuation of the clutch so that the press continues to run at the set speed even after the mechanical inertia is overcome. The signal from the tachometer to the speed meter is modified before actuation of the clutch so that it provides a reading at the set running speed of the press even though the flywheel is running at a higher speed. After the clutch is actuated, the true tachometer voltage is fed to the speed meter so that it continues to indicate the true running speed of the press.

Abstract: A double action mechanical press, especially for performing a blanking operation and a forming operation on each cycle thereof, having a first slide and a second slide, wherein the slides have separate strokes. The slides are reciprocated by means of a crankshaft and connecting rod assembly comprising a single crankshaft and a plurality of connecting rods wherein the throws of the crankshaft can be differently dimensioned and angularly offset relative to each other so as to provide different stroke lengths for the slides and to cause one slide to lead the other. A guide bushing assembly is connected to one of the press slides, and a blanking punch is received in the guide bushing for reciprocating movement relative to the bushing along the same direction of reciprocating movement as the slides. A preloaded antifriction bearing is positioned between the punch and bushing assembly, and serves to maintain the proper clearance between the punch and the corresponding cutting edge on the lower die half.

Abstract: A heat duct support assembly for an impingement oven having a plurality of horizontally oriented heat ducts therein, which are connected to a plenum to direct hot air from the plenum against food being conveyed through the oven. The assembly comprises two studs projecting from each of the oven opposite sides and an elongated bracket horizontally positioned between the oven opposite sides for supporting the remote ends of the heat ducts. The bracket is supported by a pair of bracket supports connected to its ends and which are adjacent to the opposite sides of the oven. The bracket supports have slots in their bottom and top edges that engage the studs in order to support the bracket between the oven opposite sides. The opposite ends of the heat ducts are supported by flanges peripherally disposed about openings in the plenum and over which the heat ducts are fitted.

Abstract: A pile driving device of the drop hammer variety is disclosed and includes a crane supportable housing containing a hydraulic drive motor and a cam member for executing generally circular motion within the housing in response to operation of the drive motor and a ram depending from the housing of a substantial mass and having a bearing plate selectively engageable by the cam with cam motion sequentially raising the ram and disengaging the bearing plate to allow the ram to free fall and impact a pile. Also depending from the housing is a vertical guide arrangement for limiting ram motion to generally vertical reciprocating motion limited at one end by the pile being driven and at the upper extreme by the uppermost position of the cam member. The drop hammer assembly may further include a sleeve which is removably attachable to a pile upper end and which extends upwardly therefrom to provide a sleeve portion in which the ram may reciprocate.

Abstract: A central processor for an electronic organ in the form of a single, forty pin integrated circuit chip employing multiplexed technology and trinary and tri-level inputs to obtain maximum usage from each pin. The solo manual keys, chord keys, rhythm pattern switches and other control functions are multiplexed externally of the chip, fed into the chip as a time division multiplexed four bit byte over four pins, and demultiplexed internally of the chip. The solo manual information is multiplexed internally of the chip to form a single serial data stream, is combined with solo fill note data generated within the chip and then brought out over a single pin for external demultiplexing. The twelve tones of a musical octave are brought into the chip over twelve pins together with various static control signals, are decoded by tri-level decoders internally of the chip, and then utilized to generate the tones of the chords, also internally of the chip.

Abstract: A method for assembling a handle to a cooking vessel, such as a pot or pan, wherein the use of conventional rivets having heads protruding from the inner surface of the cooking vessel is avoided. Studs are welded to the outer surface of the receptacle portion of the cooking vessel, and in the preferred embodiment, the openings in the handle are dimensioned much larger than the diameters of the studs so that the openings can clear the diverging studs. Step washers are then utilized to space the handle and studs so that a tight assembly results when the ends of the studs are expanded against the washers.

Abstract: The method and device for the formation of a fuel-air mixture upstream of the mixture-forming nozzles of an internal combustion engine. The combustible fuel is vaporized and introduced into a combustion chamber through a fuel vapor passage and nozzles, and an air pump connected to the fuel vapor passage introduces pressurized air therein at a selected time in the engine cycle. This results in the discharge of pressurized air together with vaporized fuel through the nozzle into the combustion chamber to form a zone of fuel-air mixture enveloped by a jacket of air during the compression stroke of the engine and protect the nozzles and fuel passages against the hot combustion gases. Air without fuel is then discharged into the combustion chamber during combustion of the vaporized fuel. An auxiliary air chamber connected to the main chamber of the air pump through a valve that is opened and closed at selected times during the cycle of the engine serves to increase the mass of gas delivered by the pump.

Abstract: The invention relates to a small, efficient hermetic compressor for refrigeration wherein reduction in size and minimization of parts is emphasized. The motor compressor unit is mounted within a sealed outer housing and comprises a cast crankcase, which is connected to the stator of the electrical motor by means of only three connecting screws that extend through the stator and are threadedly received in sockets in the downwardly depending legs of the crankcase. The crankshaft is pressed into the motor rotor and is journaled within the crankcase for rotation about a vertical axis. The crankcase includes a slot extending into the cylinder so that the connecting rod can be inserted laterally into the cylinder at the same time that it is slipped over the end of the crankshaft, and the wrist pin is then inserted through the same slot, through the piston and connecting rod, and is held in place by a spring clip.

Abstract: The invention relates to a small, efficient hermetic compressor for refrigeration wherein reduction in size and minimization of parts is emphasized. The motor compressor unit is mounted within a sealed outer housing and comprises a cast crankcase, which is connected to the stator of the electrical motor by means of only three connecting screws that extend through the stator and are threadedly received in sockets in the downwardly depending legs of the crankcase. The crankshaft is pressed into the motor rotor and is journaled within the crankcase for rotation about a vertical axis. The crankcase includes a slot extending into the cylinder so that the connecting rod can be inserted laterally into the cylinder at the same time that it is slipped over the end of the crankshaft, and the wrist pin is then inserted through the same slot, through the piston and connecting rod, and is held in place by a spring clip.

Abstract: An electronic keyboard musical instrument comprising a multiplexed keyboard and a programmable microcomputer interfaced between the keyboard and a system of capture tone generators. The loading circuitry for the microcomputer, which is interposed between it and the keyboard multiplexer output, monitors the serial data stream and transmits only key change information to the microcomputer. If a keydown signal appears in a time slot where that time slot was previously empty, a multiple bit binary word identifying that time slot and indicating that it is a keydown condition is transmitted to the microcomputer. Similarly, if a keydown pulse disappears from a time slot when a pulse was previously present, a similar code is transmitted to the microcomputer indicating that the key is no longer depressed. The microcomputer controls the assignment and deassignment of tone generators for the accompaniment, solo and pedal manuals based on the key change information transmitted to it.

Abstract: The laminated stator core for an engine ignition system includes in addition to that ignition system an arrangement for charging the storage battery of an internal combustion engine powered device during engine operation with a charging coil surrounding one leg of the ignition stator core and a rectifier coupling to the charging coil for conveying a varying unidirectional current to the battery. The ignition system may be of the type having a three legged E-shaped laminated stator core and a flywheel supported permanent magnet with charging coils being positioned on each of the outer E legs with diodes in series with each charging coil and means connecting the two coil-diode series circuits in parallel with one another and to the battery for providing a pair of sequential primary charging current pulses to the battery during each revolution of the flywheel. A fourth laminated stator core leg supporting a charging coil may be employed in some circumstances.

Abstract: A blind capture system for organs and other electronically actuated musical instruments enabling the setting of control switches, such as voicing tabs or keys of the keyboard, to be stored for reactivation upon command. The system includes a programmable, random access memory capable of storing data representative of the composite states of the switches and includes a plurality of storage frames in which data corresponding to a plurality of separate combinations of actuated switches can be stored. The switches are scanned by a multiplexer to produce a time division multiplexed serial data stream, which is then loaded into the memory during the store mode in such a manner that the data will be entered into the proper storage frame. The data is read out of the memory as a serial data stream, which is demultiplexed to produce a parallel format signal which is connected to the control inputs for the system controlled by the switches over a bidirectional data bus.

Abstract: An apparatus for dissolving pulp and producing a paper pulp suspension for use in papermaking. The apparatus comprises a container having a stirring rotor therein and, in the area of the lower wall of the container, an outlet chamber to which is connected a dilution water inlet pipe and an outlet pipe. A plate connected to the stirring elements defines the upper extremity of an outlet space and has a plurality of radial ribs connected thereto and extending downwardly into the outlet chamber. As the plate is rotated, the ribs cause mixing of the suspension which flows downwardly into the outlet chamber together with the dilution water to thereby produce a suspension having a lower consistency than the suspension within the container itself. In order to prevent dilution of the suspension within the main area of the container, a retaining wall is provided on the lower surface of the plate at a position radially outward of the axis of rotation.