This invention relates to a vehicle propulsion system which generates a force on the vehicle frame in the direction of travel. The propulsive force is obtained from the interaction between two magnets; wherein one magnet transmitting the propulsive force is fixed to the vehicle frame, and the other is free to reciprocate toward or away from the fixed one depending on presence or absence of magnetic interacting field. The reaction to the propulsive force is almost totally absorbed in accelerating...

A composite sheet product, suitable for porcelain enameling, having an aluminous metal cladding layer on an aluminum base core alloy containing about 2 to 3% copper, up to about 0.4% manganese, and about 0.2 to 0.6% magnesium.

A collating apparatus for assembling a magazine from a plurality of signatures has a conveyor movable successively through a plurality of signature feeding stations and includes equipment for sensing and counting malfunctions of each feeding station. The counter is periodically reset after a predetermined number of machine cycles; if the number of malfunctions exceeds a preset stored limit before the counter is reset, the machine is stopped automatically. A rejection station following the last s...

Combination upper and lower rails are supported in spaced and parallel relationship upon pylons or the like. The individual vehicles are provided with upper and lower wheel bogeys. The vehicle moves in one direction by engagement of the lower wheel bogeys on the upper side of the rails and in the other direction by engagement of the upper wheel bogeys on the under side portion of the rails. This means that vehicles can move in either direction without danger of collision and without the necessit...

Hazardous materials such as askarels, chlorinated hydrocarbons or other ecologically undesirable liquids are disposed of by gelling the liquid within a combustible package and subsequently shipping the package to a qualified disposal site, such as an incinerator, which can incinerate halogenated hydrocarbons in an ecologically sound manner.

An elevator system including an elevator car, counterweight, hoisting ropes interconnecting the elevator car and counterweight, and a drive for moving the car and counterweight in guided paths. A compensation system is provided which includes at least one metallic strip disposed between the elevator car and counterweight.

A security system for monitoring predetermined alarm conditions at multiple locations. Security units are provided at each monitored location with each unit including an emergency d.c. power source for providing power during a.c. power line failure. In the event of an alarm condition, an amplitude modulated radio frequency carrier signal having a modulation frequency indicating the location of an alarm condition is superimposed on an a.c. power line for detection at a remote monitoring location....

An essentially vertical heat-transfer means in a cooling tower has associated therewith nozzles for spraying water on the exterior surfaces thereof. The nozzles are arranged at a plurality of levels and the nozzles at each level are controlled by a separate valve. Control means are provided so that the water nozzles can be brought into use in upward ascending sequence as the heat load on the system is increased, and vice versa. When the topmost part of the heat transfer means functions by air-co...

A sprinkler system having a pressurized sprinkler conduit which is separated from a water supply by a normally closed valve, and a fire alarm system having a circuit which is connected with this valve and opens the same in response to the detection of a fire by the circuit, is operated by detecting the absence of electrical energization of the fire alarm circuit, and thereupon operating the sprinkler system as a function of pressure losses in the sprinkler conduit rather than as a result of the ...

An unloader system is described which comprises a pallet having a plurality of grooves on its upper surface, a fork movable in the vertical direction and adapted to be received in the grooves of said pallet, a frame structure, and a truck movable along said frame structure and having a vertically movable loading platform on which said pallet can be placed, said component parts being operatively combined in such manner that one or more stacks of piled sheet bodies or other goods which are loaded ...