Abstract: An angular feed centerless grinder having a frusto-conical grinding wheel adapted to simultaneously grind a workpiece diameter and adjacent shoulder by feeding the wheel relative to the workpiece at an angle to the center line of the workpiece, i.e. at the juncture of the work diameter and shoulder. A generally cylindrical regulating wheel is adapted to support and drive the workpiece in a conventional manner. The grinding wheel and regulating wheel are adapted to move relative to the workpiece along their respective line of centers between the wheels and the workpiece, thus establishing an obtuse angle between the feed vectors of the regulating and grinding wheels in the one plane, while an obtuse angle is likewise established between the feed vectors in a second, perpendicular plane.

Abstract: A coupling includes an outer cup-shaped member that acts as a support for other parts and is both revolvably and slidably supported on a conveyor that moves the coupling between work stations. In the normal installation, the coupling would move between workpiece loading and unloading stations. Slide motion relative to the conveyor is used to engage and disengage a workpiece. The outer cup-shaped member acts as a shield against ambient conditions which may include heating, coating or the like. The coupling preferably involves an internal chuck feature having an expandable resilient detent member preferably in the form of a metallic stretchable annular member known as a garter spring. The coupling and conveyor are suited for use in handling soft or easily marked materials such as plastic.

Abstract: A circular scanning lens system comprises a Petzval lens device having an optical axis on which are located first and second spaced lenses. A Rantsch derotator is positioned between the lenses and has an optical axis coincident with the axis of the Petzval lens, about which elements of the derotator are turned. The scanning lens system is adapted to be used with a raster scan system to remove the tendency of the raster scan system to rotate an image as the image is deflected in a straight line across a focal plane.

Abstract: Grinding machine with a provision for setting up grinding cycle parameters and then locking them in the selected condition so that they are not accessible to the normal operator. The control is provided with lamps to indicate machine events and event failure.

Abstract: A method of inhibiting or reducing the irritation of skin resulting from allergic contact dermatitis, caused by contact with natural or synthetic allergenic agents, e.g. poison ivy, and dinitrochlorobenzene, respectively, is described. The method comprises applying to the skin an irritating reducing effective amount of a protective agent which is an organic compound having at least two polar groups, e.g. carboxyl groups, separated by a chain of at least 15 atoms the majority of which are carbon atoms and optionally containing a cyclic moiety of at least 5 atoms, prior to contact of the skin with the allergenic agent. The protective agent may be combined in a pharmacologically acceptable base for application to the skin.

Abstract: An apparatus in a machine tool controls the flow of coolant in accordance to tool contact with a workpiece. The preferred embodiment measures and stores a torque value exerted upon a spindle motor under no-load conditions and compares this value to an operating torque value upon the same spindle motor. When the tool contacts a workpiece and the operating torque exceeds the stored no-load torque value by a predetermined amount, a solenoid operated valve is opened and coolant is permitted to the area of tool engagement with the workpiece.

Abstract: A multimodal cycle for a grinding machine is modified as the function of the grinding force and the mode of operation. The grinding force is monitored by measuring the electrical load value upon the grinding wheel motor during operating conditions and biasing this value by a stored value representative of the nongrinding idle load. The idle load bias is updated with each grinding cycle and the grinding force signal is used to control a variety of machine operations. If the grinding force signal exceeds a predetermined threshold during an early portion of the grinding cycle, the wheelhead advancement is terminated; while the same situation in a later portion of the cycle permits continued wheelhead advancement but at a reduced rate. The grinding force signal is also used to count parts and detect part absence. It is further used to regulate rough and finished spark-outs as well as a peak load limit for the grinding cycle.

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 groups, 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 nozzle shut-off valve for an injection molding machine has a plunger mounted to reciprocate in a bore so as to block the passageway of the plastic through the nozzle, a single-acting pneumatic piston and cylinder to reciprocate the plunger, to block said passageway, and a pilot passage connecting the underside of the plunger to a location upstream of the intersection of the bore and the passageway for plastic through the nozzle.

Abstract: An angled cam bar is slidable across a pair of base-carried supports so that the cam bar attitude varies in its travel, and a pivot point on the cam bar thereby traces out a locus of curvature, while a dressing stylus depending from the pivot point likewise traces out the locus of curvature on a grinding wheel. The supports are biased to a first position so as to generate a first portion of the locus of curvature, and means as provided to move one of the supports at one end of the first locus portion so as to generate a second portion of the locus of curvature as the bar continues traversal.

Abstract: A remotely operable manipulator orients an end-effector mounted to one end of a plurality of serially connected drive shafts. The manipulator has two sets of concentric shafts with individual shafts within each set independently rotatable about an axis common to the set. The common axes of the two sets are obliquely oriented with respect to each other; and a third shaft, rotatable about a third axis, is angularly oriented and connected to the most remote set of shafts. The preferred embodiment has the axes of the two sets and the third shaft intersecting at a single point and permits orientation of the third axis normal to any point upon the spherical surface of a spherical sector generated by the combined movement of the plurality of shafts.

Abstract: Grinding machine for a workpiece having a reference surface that cannot be used for mounting the workpiece for grinding and, yet, must be located near the abrasive wheel to permit accurate grinding of surfaces relative to the reference surface; the machine includes a chuck adapted to mate with a locating surface in a workhead and to mate with a similar locating surface in a mounting means, the mounting means including a clamp for engaging the reference surface on the workpiece and holding it in a fixed predetermined relationship to the locating surface on the chuck.

Abstract: The hair is protected from damage by chemical agents, e.g. in bleaching, by either pretreatment with, or concurrent use of a protective agent and the damaging chemical. The protective agents disclosed are organic compounds containing two or more polar groups, e.g. carboxyl groups, 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.

Abstract: Clock and binary NRZ signals are derived from a data track of a magnetic tape. The data track includes a pattern having a substantially constant wave length of magnetic flux variations along its length. The variations are in the form of a carrier wave having only three predetermined envelope levels. One of the levels is provided for clock pulses and the other two levels are provided for the magnitudes of the binary NRZ signals. A replica of the variations is transduced by a head into an electrical signal. First and second signals are derived in response to the electric signal to respectively indicate the carrier wave having amplitudes above first and second values of the levels. The first level is greater than the level of one of the binary signals, while the second level is greater than the first level and the level of the clock pulses.

Abstract: A completely self-contained portable apparatus that is easily carried scrubs contamination from a sealed container and charges the scrubbed container with inert gas. A housing for the apparatus carries a reservoir for the gas, a service line for supplying gas from the reservoir to the container, valves, and pneumatic logic for controlling the valves. One of the valves selectively supplies gas from the reservoir to the line or vents the line in response to a pneumatic signal derived by the logic means which is powered by gas in the reservoir. The logic means sequentially derives a preselected number of the pneumatic signals so that contamination in the container is scrubbed by the sequential flow of the gas into and out of the container through the line.

Abstract: A machine control system including a programmable machine function controller comprised of a logic processor and a data processor. The logic processor is responsive to first devices on a machine, e.g. limit switches and push buttons, for controlling second devices on the machine, e.g. motor starters and solenoids, in accordance with a program representing a desired machine operation. The data processor operates asynchronously with the logic processor but responds thereto for selecting programs of arithmetic instructions relating to the machine operation. The system includes a panel of push buttons, lights and read-outs located remotely from the controller. Signals are transmitted between the controller and the panel using asynchronously operating receiver/transmitters which multiplex and transfer the signals on a serial basis. The machine includes at least one movable member in mechanical communication with a driving mechanism.

Abstract: The scale rail of a weighing mechanism is interposed in axial alignment with the spaced adjacent ends of an elevated fixed trolley rail, and means are provided for advancing a wheeled trolley onto the scale rail after which the initial trolley-advancing means is physically disengaged from the trolley thereby permitting it to stop on the scale rail where it remains until the trolley is next engaged by second trolley advancing means which advance it along and off of the scale rail onto an adjacent section of the trolley rail. Means are provided for selectively disposing the second trolley advancing means in operative or in inoperative relationship relative to a trolley.

Abstract: A polyvinyl chloride resin stabilizer is provided having a high concentration of tin, in the range from about 10% to about 42% by weight, and a high concentration of sulfur, within the range from about 8% to about 42% sulfur, comprising at least one monoorganotin or diorganotin mercapto alkanol carboxylic ester (or mercapto alkyl carboxylate), mono or poly sulfide and preferably mixed monoorganotin and diorganotin mercaptoalkyl carboxylic acid ester sulfides, especially having 4 to 50% of the diorganotin compound. Polyvinyl chloride resin compositions are also provided, containing these compounds.

Abstract: A grinding machine wheel guard hood adjusting apparatus, wherein a wheel guard hood is swingably attached to a wheel guard at one end so that the opposite end of the hood may be swung into close proximity with a grinding wheel circumference. A pivot joint is provided on the wheel guard, having its axis parallel to the hood swing axis, and a housing is affixed to the first pivot joint. A screw is rotatably carried in the housing and a stepping motor is carried on the housing to drive the screw in rotatable directions. A second pivot joint, having its axis parallel to the first pivot joint axis is provided on the swingable hood at a point away from the swing axis, and a nut is affixed to the second pivot joint.

Abstract: U.V. stabilizer compositions comprising a nickel organophosphate and a benzophenone and polymer compositions of increased resistance to deterioration containing same are provided.