Abstract: A thermomagnetic layer on a slave tape has a Curie temperature above which it loses, and below which it stores, an image. Such layer is heated above the Curie temperature just before such layer records an image. To compensate for image stretching in such layer by the heat, the lines in a raster scan on the mirror-master tape are lengthened relative to such lines on a master tape during an image transfer between the tapes. To accomplish this, a rotary member holding the mirror-master tape has a larger diameter than, and rotates at the same angular speed as, a rotary member holding the master tape. To inhibit the slave tape separation from the heater by water vaporization in the thermomagnetic layer, (1) the heater heats such layer while the slave tape moves in a direction opposite to its movement during the image transfer or (2) a microwave oven heats such layer.

Abstract: Master and slave tapes respectively move on a pinch roller from a first supply reel to a first take-up reel in a first cassette and on a capstan from a second supply reel to a second take-up reel in a second cassette. The pinch roller locked in a first position abuts the capstan to transfer to the slave tape the image on the master tape. After such transfer, a signal sensing the slave tape end causes the pinch roller to be unlocked and to be moved to a second position displaced from the first position. In this position, the second cassette is replaceable by another cassette for an image transfer from the master tape. The rotations of the supply reel produce eccentricities which vary tape tension. These tension variations are compensated at positions before the pinch roller and the capstan by springs guiding the tapes and by damping members attached to the springs. The damping members are pre-stressed to provide damped compliances in accordance with the tension variations.

Abstract: First and second complementary input voltages control current flow through first and second switches (e.g. semiconductor devices) each respectively connected in first and second control circuits with a first constant current source. When the input voltages change, current starts to increase through one control circuit to produce increases in the voltage drop across an impedance (e.g. resistor) in such circuit. When a particular voltage difference is produced between the impedance voltage and an adjustable biasing voltage, a third switch (e.g. semiconductor device) closes to produce a first resultant voltage. The resultant delay in the third switch closure is dependent upon the adjustable magnitude of the biasing voltage. As the voltage increases across the impedance in the one control circuit, the voltage decreases across an impedance in the other control circuit, causing a second resultant voltage to be produced at a fourth switch (e.g. semiconductor device).

Abstract: A head records a track (e.g. a servo track) in a memory member outside of a clean room without using reference indices. In each of a plurality of cyclical movements (e.g. revolutions), signals (e.g. servo signals) are recorded in the track in an individual number of frames. Thereafter the distance of the unrecorded portion of the track is determined. In the next cyclical movement, the head records signals in an individual number of frames contiguous to the frames previously recorded, in a track distance dependent upon such individual number relative to the number of frames still unrecorded and upon the distance determined for the unrecorded track portion. In a last cyclical movement, the head records a single frame in a particular spatial relationship with the first and last frames. In a specific embodiment, 2.sup.N-K frames may be recorded in the K cyclical movement. Additional signals may thereafter be recorded by the head in tracks in a single cyclical movement.

Abstract: A nozzle has a runner for passing fluid through the nozzle. The fluid is heated as it passes through the runner. The temperature of the fluid may be regulated. The fluid flows from the runner into a well formed in a nozzle well insert which is disposed on the nozzle. A gate is disposed in the nozzle well insert in communication with the well. A tip having a raised portion and a reduced portion, each extending in a helical pattern, is disposed in the runner with the raised portion abutting the surface of the runner. The outlet end of the tip is disposed relative to the well in the nozzle well insert so that the fluid in the reduced portion of the tip flows in a swirling motion through the well to wipe the surface of the well and remove the fluid previously in the well. The surfaces of the raised and reduced portions of the tip may be coated with a material to prevent such surfaces from becoming deformed by the fluid flowing through the tip and the gate into the mold. In this way, a fluid of one color (e.g.

Abstract: A master tape movable in a closed loop including a pinch roller transfers a mirror image to a slave tape movable in a closed loop including a capstan. A thermomagnetic layer on the slave tape has a Curie temperature above which magnetic information is destroyed and below which magnetic information can be recorded on such layer. The thermomagnetic layer is heated above the Curie temperature, thereby becoming lengthened by thermal expansion just before the slave tape reaches the capstan. A downstream portion of a peripheral surface, preferably defining a cylindrical segment, on a first guide receives a pressurized fluid for sensing the tape tension in accordance with the tape width, distance from the cylinder axis and fluid pressure. An upstream portion of the guide peripheral surface receives a vacuum adjustable to regulate tape tension in response to variations in the pressurized fluid pressure.

Abstract: Distressed forms or sheets folded at progressive lengths are lifted from a first platform, processed as by a printer and then stacked on a second platform on the other side of the printer from the first platform. The platform is disposed on tubular supports and is constrained on such supports to become lowered in position by the weight of the distressed forms being stacked on it. A guide extends from the printer to direct the forms downwardly into a compartment which is defined by the platform and by walls extending from the tubular supports in spaced relationship to each other. A tray is disposed on the compartment on the platform and is configured to direct the sheets downwardly so that the forward ends of the forms will be stacked properly on the platform against the forward wall. An endless belt is disposed in the compartment at the forward end of the compartment and is provided with teeth at its outer periphery.

Abstract: A retrofit foundation system for bolting a sill plate to a foundation including, an upper piece member having a first upper portion for lying against the sill plate for bolting to the side of the sill plate and having a second portion extending outwardly from the side of the sill plate along the top of the foundation and extending past a side wall of the foundation. A lower piece member has a first lower portion for lying against the side of the foundation for bolting to the side of the foundation and has a second portion extending outwardly from the side of the foundation at the top of the foundation and with the outwardly extending portions of the upper piece member and the lower piece member lying adjacent to each other along a plane substantially parallel to the top of the foundation. The outwardly extending portions of the upper and lower piece members are attached together to transfer any external forces from the sill plate to the foundation.

Abstract: A calling station sends to a called station a call request package including the address of the called station and the information digitizing rate of the calling station. The packet may also include the address of the calling station. The called station selects the lower of the information digitizing rates of the calling and called stations or the information digitizing rates of both stations if such rates are the same. The called station sends to the calling station a call request response package including the selected information digitizing rate. The call request response packet may include the addresses of the calling and called stations. The calling station selects the lower of the information digitizing rates of the calling and called stations or the information digitizing rates of both stations if both rates are the same. The information digitizing rates of the calling and called stations may be the voice digitizing rates of both stations.

Abstract: An input electrical pulse as from an input mechanism is rectified and converted to a direct voltage, which may be regulated in magnitude. The regulated direct voltage may be introduced to a timing circuit which produces a signal after an adjustable and pre-selected delay. This signal causes a circuit to produce a triggering signal. The circuit is biased by a capacitor charged by the direct voltage so that it produces the triggering signal only after the timing circuit has provided the pre-selected delay. The triggering signal closes a switch (e.g. makes a transistor conductive) which provides a low impedance to a firing device such as a squib. The direct voltage then activates the firing device and the firing device actuates an output mechanism. The input mechanism may be coupled to a housing at one position in the housing. When actuated, the input mechanism introduces the input pulse to the circuitry described above, such circuitry being disposed in the housing.

Abstract: A respirator mask, including a unitary body member formed of a flexible rubberlike material and having an inner surface to fit and seal upon the face of a user. The body member including at least one opening to receive a filter cartridge and including an internally extending flange portion forming the circumference of the opening. A filter cartridge formed of a substantially rigid material and including an inner grooved portion having a shape substantially complementary to the internally extending flange portion of the body member and with the flange portion for reception within the grooved portion of the cartridge to provide for the cartridge being locked within the opening in the body portion. The internally extending flange portion of the body member and the grooved portion of the cartridge forming a seal to prevent any passage of air from the outside to the inside of the mask, except through the filter cartridge.

Abstract: A member is disposed against a motor vehicle wheel at a position near the center of a bore for receiving the wheel axle. The member may be a collet expansible radially against the annular wall defining the central bore. Alternatively, a ring may be moved into concentric relationship with the central bore and then disposed against the back side of the wheel. Clamping members are then moved, preferably axially and rotationally, against the wheel front side at a position near the wheel periphery. A snubber ring is thereafter moved against the wheel back side, preferably at a position corresponding radially to the positions of the clamping members against the wheel. Each member at the wheel periphery may be moved by introducing hydraulic fluid into an individual one of a plurality of cylinders to move a piston coupled to such member.

Abstract: Analog signals representing individual digital values (+3, +1, -1, -3) of data pass through a telephone line to a receiver. These signals may first be provided in a pseudo random sequence. A linear echo canceller and a first adder at the receiver simultaneously eliminate, to some extent, echo signals resulting from second analog signals transmitted through the telephone line by the receiver. A non-linear echo canceller and a second adder further significantly reduce the echo signals and specifically reduce non-linear components in the echo signals. Adjustable signal delays achieve optimal performance of the linear and non-linear echo cancellers. In one inventive embodiment, each echo canceller includes a memory which stores, for each terminal in such echo canceller, data representing (a) the pseudo random sequence and (b) coefficients for adjusting the signals in such sequence. Such data for each terminal in such echo canceller is recorded in the memory for introduction to the next terminal in the memory.

Abstract: A pancake-configured housing holds first and second printed circuit boards. The first board includes electronic circuitry providing an adjustable timing delay and a first switch manually operated from a position external to the housing. The second board includes a pyrotechnic device and electronic circuitry for firing the device after the adjustable time delay. The second board also includes second switches with arms actuatable to convert such switches from first to second operative states. In the first state, the second switches short circuit the device and an energy storage member (e.g. a capacitor) on the second board and provide an open circuit to the circuitry on the first board. In the second state, the second switches provide a charging of the capacitor, the initiation of the timing through the circuitry in the first board with the first switch closed and the device firing by the capacitor energy after the adjustable delay.

Abstract: An enclosure has stationary walls and a ram dividing the enclosure into first and second sections and movable in a particular direction to enlarge the first section and reduce the second section. A device (e.g. a projectile) is disposed in the second section for expulsion by the ram from the enclosure. Exothermic material, preferably on a hollow stationary support within the first section, is combustible to produce solids not deleterious to the enclosure walls and gases expansible to move the ram in the particular direction. Such material may include an oxidizer (e.g. perchlorate, preferably ammonium perchlorate), a binder-reducing agent, preferably organic (e.g. hydroxy-terminated or carboxy-terminated polybutadiene), an additive (e.g. powdered aluminum) to increase the combustion energy, an additive (e.g. iron oxide) to increase the combustion rate and an additive (e.g. potassium perchlorate) to modify the burning rate slope. Their relative weights may be: NH.sub.4 ClO.sub.4 -74.2, polybutadiene-15.3, Al-1.

Abstract: A member made from a suitable material such as a polyurethane epoxy designed to withstand impact against an object is provided as a support member. For example, the member may constitute an insert disposed on or in the heel of a shoe but a wide variety of other applications are possible. A suitable member such as a piezoelectric member is disposed on the support member to produce a signal when the support member is impacted against the object or when the impact is released. This signal is amplified by an amplifier which is powered by a suitable source such as a battery. The amplified signals are introduced to a light emitting member such as a light emitting diode which provides an illuminated indication of the impact of the support member against the object. A member such as a resistance may be disposed in the circuit with the battery and the amplifier to limit the current flow through the amplifier during the times that the piezoelectric member is energized.