Abstract: A CW FM TR radar receiver responsive to a local tone modulation source and a return signal having a carrier frequency modulated by the tone is particularly adapted to handle a return signal containing different returns derived from multiple targets and/or via multipath. An FM demodulator responds to the return signal to derive a demodulated signal containing the tone frequency. The demodulated tone frequency signal is averaged over a time interval of many cycles of the tone. The phases of the average tone frequency component and the tone of the local modulation source are compared to enable an indication of the range and velocity of a dominant target contributing to the return signal to be derived.

Abstract: An apparatus for controlling the transmission of multiple level priority interrupt signals to a central processing unit. A number of storage elements are responsive to the interrupt signals on an individual basis. A last-in first-out memory having an output connected to the processing unit stores storing the interrupt signals in order of descending priorities. A comparator circuit compares the priority of a new interrupt signal in the storage element with the highest priority interrupt signal currently in the memory. If the new interrupt signal is of the same or a higher priority, an interrupt request signal is sent to the processing unit. Subsequently, the processing unit returns an acknowledge signal which is operative to load the new interrupt signal into the memory, thereby providing the new interrupt signal as an output therefrom. The acknowledge signal also resets the storage element associated with the new interrupt signal.

Abstract: A hide-puller includes a pair of transversely spaced, endless, flexible members which define a continuous, vertical path having a forward descending reach and a rearward ascending reach. A horizontal reaction member is secured to, carried by and spans the flexible members and is advanced therewith along the continuous path. A carcass to be stripped of hide is suspended, head-end down, from an overhead support forwardly of and adjacent the descending reach and a stationary anchor member is disposed intermediate of the reaches for securing a loosened, tail-end-adjacent flap of the hide, whereby the reaction member engages and imparts a downward, hide-pulling motion to the hide intermediate of the anchor and the carcass as the reaction member advances in the downward reach.

Abstract: An apparatus is disclosed for use with an EDM machine for controlling the motion of the tool relative to a workpiece. In one embodiment, during the ON time, low power pulses are applied across the machining gap immediately prior to machining pulses. A gap voltage signal produced in response to the low power pulses is used exclusively as an input to control the tool feed mechanism. In another embodiment, the gap voltage signal produced by a low power pulse is combined with a gap current signal produced by a machining pulse to generate control signals which are used to produce command signals for the tool feed mechanism. Further, these control signals may be used to drive a meter which provides a visual indication of the general condition of the machining gap.

Abstract: A synergistic stabilizer composition comprising an organotin borate and an organic thiol is provided. Polyvinyl chloride resin containing the synergistic stabilizer composition exhibits improved resistance to early discoloration during processing.

Abstract: A method and apparatus are disclosed for controlling the initiation of cutting motions for cutting multiple start threads on a rotating workpiece held in a spindle of a numerically controlled machine. The numerical control contains an interpolator circuit responsive to a spindle feedback circuit connected to the spindle for generating a marker pulse and a predetermined number of spindle pulses for every revolution of the spindle. The apparatus provides input signals representing a particular threading start number relative to the total number of threading starts. Next, a control signal is generated which represents a number of spindle pulses as a function of the ratio of the particular threading start number to the total number of threading starts. Upon detecting an occurrence of a marker pulse which would normally initiate a threading motion, the apparatus is operative to inhibit a number of spindle pulses corresponding to the control signal.

Abstract: A unique index mechanism for positioning an indexable machine tool member wherein a first toothed coupling is fixed to a machine tool base member, and a second relatively movable, toothed coupling having a uniformly spaced number of teeth unequal to the first uniformly spaced coupling teeth is located concentric to the first coupling on the machine tool base. The indexable machine tool member is carried by the second movable coupling, and a third toothed coupling with teeth disposed toward the first and second couplings is rotatably mounted to the machine tool in such fashion that the third coupling may be powered into and out of meshing engagement with the first and second couplings.The second coupling which carries the indexable machine tool member may be indexed to discrete angular increments corresponding to the angular difference in the tooth spacing of the respective first and second couplings.

Abstract: An apparatus is disclosed for controlling a magnetic clamp on a machine tool having a machine slide driven by a feed motor in response to a motor power source. Current supplied to the feed motor by the motor power source is monitored by a magnetic coil control circuit. The coil control circuit is operative to regulate the supply of current to the magnetic clamp as a function of the current supplied to the feed motor. A machine slide control circuit is disclosed for inhibiting the motion of the machine slide as a function of the current supplied to the feed motor.

Abstract: Ultraviolet light absorbers and stabilizers, particularly for monolefin polymers, are provided from metal complexes of trivalent phosphorus compounds of the formulaeMe (L).sub.n (A).sub.m (L').sub.owhere Me is preferably nickel but can be manganese, iron, copper, molybdenum or tungsten, L is P(X)(Y)(Z) where any one or all of X, Y and Z can be O hydrocarbyl, ##STR1## where R.sub.31 and R.sub.32 are hydrocarbyl or hydrogen, S hydrocarbyl, hydrocarbyl, 2 or 3 of X, Y and Z can form one or more heterocyclic rings with P, A is an anion such as halogen, e.g. Cl, Br, I or F, NO.sub.3, C104, R.sub.33 COO- where R.sub.33 is hydrocarbyl, any hydrocarbyl group can have 1 or 2 halogen substituents, m is 0 or a small whole number, e.g. 1,2,3,4, L' is CO, NO, CN, halogen, o is zero or a small whole number, e.g. 1,2,3,4, n is 1 or another small whole number, e.g. 2,3,4, o+m+n is not greater than the highest coordination number of the metal.

Abstract: A hoist mechanism is activated to elevate a trolley hanger from a lowered position to a predetermined position adjacent and above a conveyor rail after which the hanger is stabilized and the rail-engaging wheel of the trolley hanger is positioned in vertical alignment with the rail. The rail engaging wheel is then landed on the rail, the stabilizing force is removed and the hoist mechanism descends to a lowered position.

Abstract: A method and apparatus are disclosed for modifying command signals representing predetermined positions of a machine element relative a workpiece as a function of measurable unprogrammed changes in the relative position therebetween. The machine element is responsive to a servomechanism circuit which in turn responds to a control device producing the command signals to command motion of the machine element to programmed points relative to the workpiece. The servomechanism circuit produces interrupt signals for transferring the command signals thereto. A measuring circuit is responsive to the unprogrammed change in relative position between the machine element and the workpiece and is operative to produce feedback signals representing the direction and magnitude of the change in relative position. A first circuit is responsive to the measuring circuit for producing a first signal representing a current unprogrammed change in relative position with reference to a predetermined point.

Abstract: A machine tool including a hard brittle tool having a cutting edge and a means for heating the tool adjacent the cutting edge.

Abstract: Apparatus is described for the controlled mixing of liquids in a predetermined ratio and is especially suitable for the dispensing of predetermined ratios of polyol and polyisocyanate liquids in the liquid injection molding of polyurethane articles. The ratio control is achieved by a master-slave velocity relationship between at least two metering pumps of the plunger or piston type which are velocity coupled and inject on a common programmed velocity profile that is fed into the pump control that is the master system. Each pump control system has a velocity feedback control loop (a closed loop system) and one signal into the slave automatic control system (typically the polyol system) is obtained in a suitable ratio from the feedback master automatic control system (typically the poly isocyanate system).

Abstract: A press mechanism that is powered by hydraulic, electrical and/or pneumatic means is provided with an improved ratchet and pawl machine which acts as a fail-safe device should any of the power means fail to lock the press parts in place. The fail-safe device includes a ratchet in the form of a circular or arcuate segment mounted with its circular center substantially coaxial with one of the turning parts of the mechanism or press, a pawl having a single tooth and a circular arcuate peripheral part that acts as a journal bearing and which in turn is supported by a pawl bearing which in turn is secured to a stationary part of the mechanism and has an arcuate journal which receives and supports the pawl therein. Tremendous load carrying capacity is thus achieved because of the large bearing area provided by the pawl bearing and the positioning of the respective ratchet and pawl teeth to employ a surface rather than point contact.

Abstract: A machine tool having relatively rotatable elements joined by a toothed coupling.

Abstract: A high-Q load circuit is matched to a drive circuit with an L-type filter network including series and shunt reactances which are both either inductive or capacitive. While a first of the reactances is effectively removed from the network, the value of the second of the reactances is varied until the impedance magnitude of the load and network, as seen from the drive circuit, reaches a predetermined magnitude, and a predetermined relationship exists for the polarity of the phase of the voltage and current supplied by the drive circuit to the network. When the impedance magnitude seen by looking from the drive circuit into the network reaches the predetermined magnitude and the correct phase polarity exists, the first reactance is reconnected into the network and then varied until a predetermined relationship exists between the phase angle between the voltage and current applied by the drive circuit to the network.

Abstract: A scanner having an instantaneous narrow field of view determines spectral and positional information of a point source of optical radiation in a relatively wide field of view. A first optical path includes the scanning means, a dispersion means, and a first detector means so that different wavelengths of the source are convoluted to impinge on the first detector means at different times during a scan of the field of view. A second optical path includes the scanning means, the second detector means, and a narrow bandpass filter for enabling approximately monochromatic energy of the source to impinge on a second detector means displaced from the first detector means. Thereby, a predetermined wavelength is imaged on the second detector means at a time during a scan that differs from the time when that wavelength is imaged on the first detector means, even though the source angular position in the field of view is substantially the same for both of the optical paths.

Abstract: A machine that receives freshly printed matter, and moves the printed matter on a belt along the machine so that the printed matter passes through an irradiation chamber where it is irradiated with ultraviolet light. The printed matter continues to move along the belt and is thereby removed from the irradiation chamber and delivered to the output end of the machine. The irradiation chamber is so constructed so as to control the intensity of the ultraviolet radiation that is delivered to the printed matter. Air moving means are also provided by which to control the maximum temperatures induced in the printed matter as it passes through the irradiation chamber. Another air moving means is employed to control the temperature of a radiator assembly employed within the irradiation chamber. A third air moving means is provided to evacuate the irradiation chamber and associated components of hot and contaminated air and to exhaust this air to the outside.

Abstract: This disclosure is of an article exchange mechanism of the type suited for use in exchange of tools or workpieces in a machine tool. The mechanism is asymmetrical in the sense that each of the positions between which articles are exchanged may be at a different distance from the origin of coordinate axes extending through these positions.

Abstract: A tool storage mechanism comprising two independent chains drivingly secured about respective driving and driven pulley sets, wherein a plurality of tool storage pockets are carried on the links of said chains, and further wherein the chains are carried on a common pivotable plate, which is switchable between two preset angular positions about the pivot. When the pivotable plate is moved to position number 1, tool storage pockets on a first chain may be presented serially to a predetermined pickup point, wherein a tool changer can load or unload tools with the tool storage pocket. When the pivotable plate is positioned at position number 2, the second chain is switched to such position that its tool storage pockets may be presented serially with the tool pickup point.