Abstract: A method of scaling data between memories of different horizontal sizes by calculating an increment expressed as an integer and a fraction relating the horizontal memory sizes, multiplying the fraction by the dynamic range of a fraction portion counter, and successively adding the integer portion in an integer portion counter and the fraction portion in the fraction portion counter, with a carry to the integer portion counter when the fraction portion counter overflows. The corresponding points in the memories are selected based upon the total count in the integer portion counter.

Abstract: A circuit breaker drawout arrangement includes a drive mechanism for moving a circuit breaker along a pair of rails between a Connect and a Disconnect position by means of a drive tool. A torque limited clutch permits a lower maximum torque when moving the breaker to the Connect position and a greater maximum torque when moving from the Connect position to the Disconnect position. In one embodiment the clutch is formed by a pair of oppositely orientated unidirectional roller clutches in the drive nut and in another by a ball and detent arrangement in the drive nut.

Abstract: A wire protection device and system that can operate in combination with non-metallic and metallic enclosures to help prevent damage to branch wiring during drywall installation. In some instances, the device serves to prevent the branch wires from being dislodged from the enclosure. The wire protection device may also be made to fit into a wire clamping system that is molded integrally with non-metallic enclosure.

Abstract: An automatic cooking vessel includes a container having a water level tube coupled to the lower portion thereof and extending upwardly and outwardly therefrom. A high water level and a low water level sensors are coupled to the interiors of respective portions of the water level tube. The water level tube provides a substantially straight, unobstructed entry to the container for ease of cleaning. Two heating units are positioned in the container above the entry point of the water level tube. Two temperature sensors are coupled to respective thermostats for controlling respective energy flow devices for supplying energy to the respective heating units. The energy flow devices are coupled in series so that for temperatures below a first temperature both heating units are operated and as the temperature approaches a second temperature, equal to the boiling point of water, only one of the heating units operates. Both electric and gas versions of the cooking vessel are shown.

Abstract: A racking mechanism for a fused circuit breaker includes a drive assembly that is removable as a unit from the breaker and fuse truck. A modular assembly includes a drive unit having a drive shaft and a travelling nut and yoke for rotating a pair of levering arms for moving the breaker among a plurality of positions in a cubicle. All interlocks are included on the modular drive assembly. An indicator is cam operated by the travelling nut and includes a face having indicia that identifies the direction of rotation of the drive shaft.

Abstract: A high pressure, fluid level sensor and seal includes a body supporting a removable end cap and housing a trunnion bearing comprising a pivot disk that is pivotable about a pivot axis formed by a pair of pivot pins that are secured to the base of the end cap. The pivot disk is connected to a control arm that freely passes through the end cap. The pivot disk is also connected to a displacer arm that engages a float or displacer in communication with fluid in a high pressure tank. A compression spring acting between the control arm and the end cap biases the pivot disk against the pivot pins. The control arm engages an operating mechanism in a controller that includes a relay. The body is secured in the wall of a high pressure tank. A high pressure seal is formed by a spacer that forms a slip fit with an annular recess on the pivot disk and which engages the end cap and O-rings. The O-rings couple the spacer to the pivot disk and couple the spacer to the end cap.

Abstract: A diazo copy machine comprises a roll of diazo sensitized copy paper cradled between a pair of drive rollers above an exposure apparatus. The copy machine is activated by insertion of an original tracing sheet whereupon the copy paper and original are automatically fed in superimposed relation into the entrance of the exposure apparatus, with the leading edge of the copy paper being advanced by a programmable amount relative to the leading edge of the original. Upon exiting the exposure apparatus the superimposed sheets are directed to an automatic sheet separating apparatus which deflects and feeds the copy paper along a downward path to a developer and carries the original along an exit path out of the front of the copy machine. In the event that the two superimposed sheets both inadvertently enter the downward path, a fail-safe mode of operation is initiated for redirecting both sheets along the exit path.

Abstract: A loudspeaker includes a radially slotted ceramic permanent magnet for reducing distortion. Other constructions include slotted top and bottom plates and radially slotted bucking magnets, in combination with slotted magnet loudspeakers. The slotted bucking magnets may be retrofitted to conventional loudspeakers.

Abstract: A method and apparatus of developing a stabilized power firing event signal for a cylinder in a wasted spark ignition system having pairs of complementarily connected cylinders, each with a spark plug connected to an opposite end of an independent ignition coil. The first and second firing event signals are developed for each spark plug upon firing of the ignition coil. The first and second signals are combined with like polarity in a summation circuit for eliminating common mode signal portions. The combined signal, which is now stabilized and accurately indicates spark duration, is used for capturing secondary ignition data and may be visually displayed for analysis.

Abstract: A drop compensated pressure regulator includes a spring casing, housing a regulator spring and a relief spring, a lower casing and a diaphragm sandwiched between the two casings. The lower casing has inlet and outlet ports. A one piece cam stem and relief seat is mounted for movement with the diaphragm and includes a cam surface that engages a movable disk holder. The disk holder is movable in a straight line within an orifice tube that supports a valve seat. A cylindrical lower spring seat is coupled by an O ring to the inner wall of the spring casing to dampen vibrations. The cam stem has built in stops to retain it within the orifice tube.

Abstract: A miniature rotatable work wheel includes a cutting blade that is integrally formed with a drive hub and axle and mounted for rotatable movement at the end of a casing member. The casing member is a multi lumen tube. A single monofilament drive line is looped around the drive hub and extends through separate lumens of the multi lumened tube to a source of drive power. The drive hub has sharp corners and creates a positive drive connection with the monofilament drive line at the cutting blade. The hub also has a cupped cross section for inhibiting the monofilament drive line from riding off the hub. A drag load is applied to the payout end of the monofilament drive line close to the drive hub. The miniature powered surgical tool may be used with a catheter to incise occlusions in blood vessels for performing enhanced balloon angioplasties. It may also be used by a surgeon as a power scalpel. A milling type abrasive work wheel is disclosed as is an axially rotatable work wheel and a low friction drive system.

Abstract: A brake assembly for a rotatable wheel in which the rim of the wheel has an integrally formed lip extending from the side thereof and forming a trough. A Kevlar.TM. aramid fiber jacketed cable, positioned in the trough, encircles the lip in the direction of rotation of the wheel. The cable is affixed to the frame at one end and to an operating lever at the other end. Moving the lever tensions the cable and applies a frictional load to the trough to brake the wheel. In a second embodiment, a pair of opposed lips, one on either side of the rim, increases the braking effect.

Abstract: A method of manufacturing a composite camshaft having a shaft positioned within appropriately aligned and fixtured annular cam and bearing elements, each having interior protrusions that increase in size toward the tube axis. The shaft and elements are supported in a mold and a flowable, hardenable material is injected to fill the space between the tube and the elements for securing the elements to the shaft. The protrusions enhance the grip of the plastic with shrinkage. The shaft and the cam elements have nesting configurations that form a continuous space therebetween such that the hardened material compressionally resists torsional forces between the shaft and cam elements. Injection molding is performed without substantially stressing the freely supported shaft and without applying undue strain to the elements by providing undercut portions in the mold surrounding part of the exterior surface of the elements with high pressure plastic during injection.

Abstract: A drive system between a master cylinder, a form roller and a distributor roller in a moisture system of a printing, duplicating or like machine. The surface of the master cylinder has a longitudinal gap within which master clamping hardware are disposed. The drive system includes a first gear train, including a lost motion mechanism, between the master cylinder and the form roller for rotating the form roller only during an interval of a revolution of the master cylinder when the surface of the form roller is juxtaposed in the gap of the master cylinder. A second gear train independent of the first gear train is disposed between the form roller and the distributor roller for rotating the distributor roller continuously at the same surface speed as the form roller.

Abstract: A power supply incorporating a fault detection circuit controlling a circuit breaker is described. The power supply is isolated from relatively large applied DC voltages. This isolation is provided by a coupling capacitor in each of the line leads. The tripping energy for the circuit breaker can be provided either directly from the full wave rectifier output, or directly from the line lead or leads. In the case of the former, a reservoir capacitor may be used for storage of charge for tripping of the circuit breaker.

Abstract: A method of operating a high speed, error-free data transmission system in a noisy medium comprises compressing data determined to be compressible, forward error correcting the data and interleaving the data in a bit matrix memory to enhance the forward error correction. Digital information packets are formulated including a header bearing a packet number, the total packet byte count, any packet number resend request, the data byte count of the actual data and a CRC. The digital information packet is loaded onto a transmitter carousel having a fixed number of sectors. The receiver receives the data, requests resend of any packet (by number) that is defective, error corrects if necessary and sequentially loads the packet onto a receiver carousel. Packets or sequential packet groups are removed from the carousel, selectively decompressed and the data words extracted and sent to the output.

Abstract: A copy sheet feeding system for use in a printing, copying, duplicating and like machine includes a conveyor board for moving copy sheets thereover in seriatim fashion. A vacuum chamber extends lengthwise of the conveyor board, with openings extending longitudinally of the conveyor board and communicating with the vacuum chamber. An access mechanism is movable relative to the vacuum chamber and openings to effectivly expose the openings progressively in the direction of movement of the copy sheets. This effectively provides a moving vacuum device which moves with the copy sheets as the sheets move over the conveyor board.

Abstract: A separable flange retainment system includes a first boss on the flange and a mating second boss on a valve body. The boss on the valve body has a threaded aperture for reception of a suitable fastener. A generally U shaped retainer device having an orifice in its bight portion straddles the bosses and is secured in position by the fastener. The retainer device precludes lateral and rotational movement between the flange and the body.

Abstract: A valve assembly includes a bonnet that is captivated in a valve body stem mount by means of a threaded bonnet nut. A pair of opposed pry holes are formed in the bonnet at a point above the top of the fully seated bonnet nut. Loosening of the bonnet nut enables a bonnet that is stuck in the body stem mount to be pried loose with a pry bar inserted in one or both of the pry holes and levered against the top of the bonnet nut. The bonnet holes also provide a visual indication of movement of the bonnet and whether there is pressure in the valve body.