Abstract: A grinding machine in which the grinding cycle is controlled by a stepping motor which receives pulses from a linear feed-controlled generator and which is operative to give an adjustable diamond clearance.

Abstract: An apparatus is provided for moving a machine element along a straight line path in a plane defined by two orthogonal axes of motion. A switching device is provided for producing an input signal representing the slope of the straight line path which is defined by the tangent of the angle formed between the path and a first axis of motion. In accordance with mechanisms known in the prior art, first output pulses are generated for moving the machine element along the first axis of motion at an arbitrary velocity. The invention provides a counter circuit having a modulus as a function of the component of slope along the first axis of motion. Further in response to the input signal and each of the first output pulses, the counter circuit increments a number of times represented by the component of slope along the second axis of motion.

Abstract: A manually operated four bar linkage on a conveying device permits manual removal of preforms or other workpieces when they have not been ejected from the device at the desired unloading station. The linkage device has a cam track located adjacent to the return path of an endless type conveyor. The cam track is manually brought into conjunction with the couplings or collets which have accidentally retained a preform to force the coupling mechanism to move to a release position thus enabling manual removal of the preform. Preferably a bar or similar knock-out device is located downstream of the point where the cam track engages the coupling to ensure that all such preforms or other workpieces are removed.

Abstract: A multiprocessor system is disclosed for controlling a cycle of operation of a machine. The cycle of operation of the machine is governed by a first set of devices and is monitored by a second set of devices. The multiprocessor system includes a logic processor unit containing a first program of logic instructions defining the cycle of operation of the machine. A bus and associated circuits are connected between the logic processor and the devices on the machine. The logic processor is responsive to the second set of devices and makes logic decisions in a continuous and cyclic manner to control the operation of the first devices thereby causing the cycle of operation of the machine to conform with the first program. The multiprocessor system further includes one or more independent data processors which are connected to the bus and operate asynchronously with the logic processor. The data processors respond to output signals from the logic processor which select preprogrammed sets of arithmetic instructions.

Abstract: A wedge arrangement for removably affixing a work tool or work tool holder to a base member on mining, road working or earth moving machinery, and the like, and being particularly useful in the mining, road planing and earth digging areas. The arrangement is such that the removable member may be readily replaced and wear and tear on the base member greatly reduced to the extent that such base member will not be destroyed or otherwise rendered useless; such base member may be a part which is permanently secured to the basic machine or it may in fact be the machine itself or some integral part thereof. The base member is preferably provided with a slot of a size sufficient to receive both the removable member and a wedge element; such member and element may be placed within the slot from above thereof, lateral entry of the removable member and wedge element into the slot often being unnecessary.

Abstract: A relatively large field of view is scanned to derive an indication of a point source, optical energy emitter being in the field of view, without recognizing relatively large, non-point emitters in the field of view. Each detector in an array of linearly, arranged point source detectors generates an output current in response to the energy irradiating it. The detectors have slightly displaced, narrow fields of view which are scanned so that the field of view of each detector traces a relatively narrow, substantially straight line path across the large field of view. The paths traced by a pair of detectors are substantially parallel and close enough to each other to enable the images of large targets to be indicated as undulations having approximately the same wave shape at substantially the same time positions at the outputs of the pair of detectors.

Abstract: A method and apparatus for dressing adjacent faces on a grinding wheel. A single point dressing nib and a rotary dressing wheel are mounted to a common slide oriented with its slide axis parallel to a first face on the grinding wheel. As the slide is actuated, the nib is drawn across the first face of the grinding wheel, dressing the entire face. After the single point nib traverses the first face of the grinding wheel, the rotary dressing wheel is activated and brought into engagement with a second face on the grinding wheel, adjacent to the first face. A cam is provided on the base which carries the slide, so that a tracing stylus will follow the shape of the cam and transmit the cam profile to the dressing nib as it traverses its path.

Abstract: A production, automated method of hot forging finished articles from powder metal preforms, and an apparatus for carrying out the method, wherein the preforms are passed through an induction heating device, whereby they are heated to at least forging temperature. Thereafter, the heated preforms are passed to a pair of dies whereby they are forged into finished articles, after which they are cooled. The entire process may, if required, be conducted in a non-oxidizing atmosphere. The apparatus includes an induction heating means, a forging means, a cooling station, feeding or conveying means to introduce the preforms into the induction heating means, and conveying means to move the preforms from the heating means to the forging means and from the forging means to the cooling station. The entire operation is automatic, including the feeding of the preforms through the apparatus, the control of temperature, and the lubrication and preheating of the dies.

Abstract: An apparatus for adjusting the regulating wheel pivot in a centerless grinder machine when used for thrufeed grinding, comprising a means for tilting the axis of the regulating wheel to provide a thrufeed vector feed, and further comprising a means for elevating the tilt axis to accommodate a range of workpiece diameters without redressing the shape of the regulating wheel.

Abstract: An apparatus utilizes fluid pressure measurements to sense sufficient chucking stock for a chuck with work gripping surfaces. A flexible seal cooperates with a workpiece at a location proximal to the chuck jaws to restrict flow of a pressurized fluid. Flow resistance varies at this location with the presence or absence of sufficient chucking stock. A pressure switch senses the resulting fluid backpressure which varies with the resistance of the flow path and generates a signal indicative of the presence or absence of sufficient chucking stock which is used to control functions of a machine tool.

Abstract: Compositions effective for protecting the skin from dermatologic irritation are formed by incorporating a protective agent which is an organic compound containing two or more polar groups, e.g. carboxyl group, which are separated by at least 15 atoms the majority of which are carbon atoms and preferably containing a cyclic moiety of at least 5 atoms, e.g. the dimer of linoleic acid, in a pharmaceutically acceptable base.

Abstract: A method and apparatus are disclosed for automatically realigning a machine element to a predetermined position after an interruption of power to a drive mechanism coupled to the machine element. After the termination of power, the apparatus measures a displacement of the machine element during a predetermined period of time; and this displacement is stored in a nonvolatile memory. When power is restored to the drive mechanism, the apparatus is operative to automatically move the machine element back through a distance equal to the stored displacement. Consequently, the machine element realigns to the position it had before the power interruption.

Abstract: A mixing and dispensing apparatus for liquids that react chemically with each other from plural independent sources mixes same, and then cleans itself by injecting a terminal portion thereof into a mold. The mixing and dispensing means is intended to be incorporated into a system that provides measured quantities of the respective liquids, has control valving external of the mixing and dispensing means of the invention, and can recirculate the respective liquids except during actual mixing and dispensing. The mixing and dispensing apparatus has porting and passageways in its housing to permit recirculation and has a plunger which can be adjusted in its stroke to cover or uncover a certain amount of the mixing ports through which the respective liquids flow into the mixing chamber thence into the mold cavity.

Abstract: An injection molding machine has an improved lock and block system wherein the lock recess on the ram is defined between the parallel faces of a pair of spaced apart rings. The lock recess is established at a preselected position by sliding various ones of the rings longitudinally forward or rearward on the compression ram to coincide with a preselected advance position of the compression ram (blocking ram) on which is mounted the movable platen. The rings may be spaced apart by a magnetic spacer which is positioned where it will not be struck by moving parts of the machine. At least one jackhole or toolhole is provided in the side of the ring so that it can be separated from adjacent machine elements during set up operations.

Abstract: A radio receiver squelch circuit responds to an IF carrier modulated by any of AM voice, AM pulse, CW, interrupted CW, or angle modulated signals. After the IF carrier is amplitude normalized it is supplied to a network for deriving a D.C. voltage having an amplitude indicative of the signal to noise level of the normalized IF. The signal to noise level indicating circuit includes a detector for deriving a waveform that is a replica of the envelope of the normalized IF. In response to the envelope amplitude being above a predetermined threshold level, indicative of the presence of a signal, a capacitor is discharged by a constant current source. In response to the envelope being below the predetermined level for an initial predetermined time, the capacitor is charged by a constant current source. In response to the envelope amplitude being below the predetermined level for in excess of the initial predetermined time, the capacitor is charged by a much smaller current.

Abstract: Novel organotin borates having a tin-halogen bond are provided the phase which are useful as bacteriocides.

Abstract: This patent application discloses a mechanism for indicating the shut height in a mechanical press mechanism. It measures the absolute shut height though the press is shown having a variable stroke mechanism.

Abstract: A machine tool having an electrical means for producing a non-cylindrical surface of revolution.

Abstract: The stepping conveyor comprises a walking beam which carries a plurality of trolley pushers or impellers adapted to advance, in one direction and in step by step fashion, a succession of trolleys that are movable along an overhead trolley rail; the walking beam incorporating structural improvements that minimize the cost of manufacture, of installation, and operation, and ensure a high degree of stability and resistance to wear in the walking beam system.

Abstract: A method and apparatus for obtaining full tooth width induction hardening of gear teeth. The method comprises attaching gear teeth shaped non-magnetic material templates to the opposite sides of the gears in close proximity to but spaced from the sides of the gear teeth. The gear teeth are then progressively induction hardened by passing a current intensifier between the aligned teeth of the templates and the gears while maintaining current flow to the intensifier for the full width of travel of the intensifier between the gear teeth. In the preferred embodiment the faces and roots of the templates are slightly undersize relative to the faces and roots of the gear teeth and the tops of the teeth of the template are slightly oversize and extend beyond the tips of the teeth of the gear.