A clutch throw-out device has a thrust bearing and a pressure plate. A radially extending flange on one of the bearing rings of the thrust bearing is coupled to the pressure plate, to inhibit relative rotation therebetween. The coupling includes projections on one of the flange or pressure plate extending into corresponding recesses of the other member at the coupling. The recesses are adequately large to permit radial movement, and elastic damping means are provided at least between the recesse...

A pull-out guide for drawers or the like, where the drawer has two external sides, for use in a fixed structure having two internal sides includes support rails which may be placed on each of the fixed structure sides for supporting the drawer, guide rails disposed on the external sides of the drawer, and a plurality of rollers. Each of the rollers is supported between a corresponding guide and support rail for taking up vertical forces. Each support rail has a track and each of the guide rails ...

An arc blow-out switch is formed of a plurality of extinguishing units arranged in tandem, each including a movable compression cylinder and a stationary compression piston arranged in the compression cylinder. Axially aligned insulating cylinders surround each extinguishing unit. The arc blow-out switch further has a rod arrangement disposed within the insulating cylinders and connected to the compression cylinders for moving the latter as a unit to effect circuit making and circuit breaking op...

An improved template for use in a glass break-out apparatus having a major marginal edge substantially corresponding to the scored pattern inscribed on a glass blank and formed with discrete extensions protruding outwardly of the major marginal edge at the corners of the template for facilitating a smooth break-out of the finished piece with resultant straight and even peripheral edges.

A device for cutting out non-essential loads in a generator and battery-fed electric plant includes a voltage detecting unit connected across the terminals of the battery. The detecting unit may be a relay. Whenever the voltage at the terminals falls below a predetermined level, the detecting unit effects the disconnection of the non-essential load or loads from the terminals of the battery and generator, while allowing the essential load or loads. The detecting unit preferably includes a differ...

This device consists primarily of a pipe which telescopingly receives a rod having a foot guard attached at one end. The device includes a plate welding to the pipe which bolts to the truck body, and the opposite end of the pipe is welded to a plate which abuts with the lower portion of the front fender of the truck. A rubber gasket on the assembly, serves as friction means, against the rod so as to prevent it from sliding outwards of the vehicle, when it is in motion.

A gas current blow-out switch has an electrically conducting compression cylinder, a stationary hollow power contact pin supported in the cylinder and a piston surrounding the pin and slidably received in the cylinder for compressing an arc-extinguishing gas therein. A nozzle is affixed to the cylinder for bounding one end thereof. A movable hollow power contact pin is supported coaxially with the stationary contact pin to assume open and closed positions. The switch has an electrically conducti...

A molding machine for use with quick setting and cold setting sticky mold material, a mixture of sand and self-setting adhesive, is provided with a device to clean out the machine during each cycle and after the blow operation is completed. The sand and adhesive is mixed with the catalyst to a condition so that it will set up in a matter of seconds, e.g. ten to sixty seconds, and as it is mixed, a predetermined quantity is immediately deposited in a magazine. The magazine is closed by a valve an...

There has been provided, in a computer system, a control unit having authority over a plurality of subordinate units with differing response times. The control unit addresses and issues command instructions to selected ones of the subordinate units then waits for an acknowledgement of completion from the addressed units before going to the next step in its routine. To prevent the control unit from being hung-up in the event of a failure of response from the subordinate unit, time-out means are p...

An out-of-step relay for an alternating potential electric power transmission line is disclosed wherein the decision to trip is determined by the rate of change of the phase relationship of the voltages at the remote and local ends of the transmission line as well as by the magnitude of the phase difference of the remote and local voltages. More particularly, there is described a pair of AND networks which provide two timing signals proportional to the phase difference of the voltages and a pair...