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General Signal Corporation Patents
Assignee:
General Signal Corporation
Address:
Stamford, CT
No. of patents:
730
Patents:


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Patent Number Title Of Patent Date Issued
3967864 Fluid brake control system July 6, 1976
A fluid brake control system is disclosed having an improved emergency application and stability control device for use in association with a brake control pipe, emergency and auxiliary fluid reservoirs, a first quick action chamber, a brake cylinder, and emergency and service control
3966542 Multi-stage bleaching of pulp using successively lower power levels June 29, 1976
A process for bleaching pulp in tank comprises several steps. A pulp slurry and an oxidizing agent are supplied to a first tank compartment. The mixture of pulp slurry and oxidizing agent is agitated at a first power level that corresponds to an approximate minimum power level for a maxi
3966271 Fluid brake control system June 29, 1976
A fluid brake control system is disclosed for having an improved brake cylinder release control device for use in association with a brake control pipe, a fluid reservoir, and a service valve. The control device has a housing containing a differential abutment subject to actuation from
3966270 Fluid brake control system June 29, 1976
A fluid brake control system is disclosed having a brake application and release control device for governing fluid pressure in a brake cylinder. The control device comprises a housing containing a differential abutment subject to actuation from a normal position by differences in pressu
3966269 Fluid brake control system June 29, 1976
A fluid brake control system is disclosed having an improved quick service and accelerated release control device having valves operable when rendered effective to locally reduce the brake pipe pressure to accelerate a brake application signal through a train and at other times to apply
3964566 System for providing auxiliary power June 22, 1976
A system for providing auxiliary power comprises a primary circuit including a primary pump, an output line for providing primary power, and a return line. An auxiliary circuit includes an auxiliary pump, an output line for providing the auxiliary power and a return line. The auxiliary
3962606 Sensor for a ground fault circuit interrupter June 8, 1976
A ground fault current detection and disconnect device. A differential current sensing transformer is employed together with a second transformer having one winding in series with the neutral conductor and another winding serving as an auto-transformer with a part thereof coupled across
3959788 Ionization-type fire detector May 25, 1976
An ionization-type fire detector having a pair of ionized chambers, one of which is arranged so that products of combustion can flow therethrough while the other is substantially isolated from the products of combustion. As a result, when combustion products are present, the electrical
3959763 Four terminal varistor May 25, 1976
A four terminal varistor is shown as a device for providing fail-safe circuit protection under certain conditions. The failure of any lead connected to the four terminal varistor will shut down the protected load so that the load cannot operate under unsafe conditions. By its nature, a
3958782 Shunt enhancement logic circuit May 25, 1976
A signaling circuit adapted to be used with railroad tracks or the like for ensuring fail-safe performance in respect to the operation of a control device, such as a track relay, which must function in a fail-safe manner, typically to become deenergized after a set period and to release
3955370 Hydraulic slack adjuster and brake circuits therefor May 11, 1976
The disclosure concerns a hydraulic slack adjuster useful in the brake circuits of railway as well as road vehicles, and improved brake circuits and apparatus particularly suited to the needs of railway rapid transit service. One type of circuit incorporates the slack adjuster in com
3955125 Fail-safe active timing circuit May 4, 1976
A fail-safe timing circuit which includes a variable passive timing element and an active timer or timing device so as to control a device, for example, a fail-safe or B-relay such as is used in railroad signaling.
3955113 Brush holder with means for limiting travel of brush spring May 4, 1976
The invention comprises a motor brush holder assembly including a brush holder member and a brush member which is free for reciprocal longitudinal motion in said brush holder. The assembly includes captured brush spring means for urging longitudinal motion of the brush in one direction.
3955050 System for audibly recognizing an aurally unclassifiable signal May 4, 1976
This invention relates to a system for audibly recognizing a received signal aurally unclassifiable because of its improper (not clearly bearable) time duration and/or the frequency band occupied thereby. The received signal may be a carrier wave, modulated in amplitude and phase in
3954304 Emergency and handbrake control system May 4, 1976
A combined emergency and handbrake system employs a friction brake actuator having a spring motor in addition to a hydraulic service motor. The spring motor is restrained from operation by a second hydraulic motor which is normally maintained at operating pressure. By venting the second
3953331 Stabilization of waste material April 27, 1976
A process and apparatus for stabilizing waste material, preferably of the type that has been subjected to an initial treatment process, is disclosed and includes a main reaction tank into which the waste material is pumped after having been mixed with a suitable oxidizing agent. In the m
3951568 Pump check valve control apparatus April 20, 1976
A pump check valve control apparatus includes a pump for delivering a fluid to a system. A valve between the pump and the system controls the delivery of the fluid to the system. A valve actuator, signalled by an actuator control, begins to open the valve when the pressure on the pump si
3951364 Track circuit April 20, 1976
There is described a track circuit for use with a track section which may or may not include a switch. The system detects the presence of a railroad vehicle within the track section as it constitutes a shunt across the track. The track section is divided into a plurality of segments with
3947911 Tilting floor cleaner April 6, 1976
A rug scrubbing machine for cleaning variable depth sculptured rugs and the like which features an arrangement permitting selective tilting of the frame carrying the scrubbing brushes. Variation in the tilting angle is achieved by pivotally mounting the front wheel, with means for select
3946642 Hydraulic brake actuating and locking device March 30, 1976
A hydraulic brake actuating and locking device is provided for applying brakes of a vehicle comprising an elongated brake cylinder having a tubular push rod axially operable therein for actuating the brakes and a hydraulically controlled locking device disposed within the tubular push
3944286 Brake system including means for ensuring parking brake release March 16, 1976
A brake system for a wheeled carrier having manually operable apparatus for actuating and locking parking brakes at the wheels, the system including automatically operable apparatus for ensuring release of the manually operable parking brakes when it is desired to move the vehicle.
3943955 Stabilization of waste material March 16, 1976
A process and apparatus for stabilizing waste material, preferably of the type that has been subjected to an initial treatment process, is disclosed and includes a main reaction tank into which the waste material is pumped after having been mixed with a suitable oxidizing agent. In the m
3940946 Universal joint March 2, 1976
A universal joint includes a drive member and a driven member. One of the members includes a curved polyhedron and the other of the members includes a socket for receiving the curved polyhedron with an interference fit. The improvement comprises the curved polyhedron having at least two
3938141 Snap-on housing adapted for panel mounting of transducer February 10, 1976
A housing for a horn or like electro-acoustic element is provided, including a cover which will snap on the horn or the like by the application of slight pressure; however, removal of such cover from the horn requires significantly greater effort. Accordingly, a firm and long-lasting
3937430 Method and apparatus for controlling the speed of a vehicle February 10, 1976
Apparatus is provided for controlling the speed of a vehicle, especially vehicles of a railway train, wherein acceleration-imparting mechanisms associated with the wheels are adjusted on an individual basis by comparison of tangential speed and desired speed by the use of sensors to
3935707 Hydraulic control system February 3, 1976
A hydraulic control system includes a generating circuit for providing power to a work function. A driving apparatus operates the generating circuit. A control circuit is connected to the generating circuit and the driving apparatus for permitting delivery of power to the work function
3935706 Hydraulic control system February 3, 1976
A hydraulic control system includes a generating circuit for providing power to a work function. A driving apparatus operates the generating circuit. A control circuit is connected to the generating circuit and the driving apparatus for permitting delivery of power to the work function
3934125 Automatic vehicle operation system January 20, 1976
An automatic vehicle operation system which responds to a plurality of speed commands and a plurality of stopping commands. The vehicle is controlled to travel at one of a plurality of speeds in response to one of a plurality of speed commands. The vehicle can also be controlled to stop
3933083 Variable displacement cylindrical pump January 20, 1976
A variable displacement cylindrical pump is provided having a sectional housing and a cam plate having trunnions and trunnion bearings. A first generally annular pump housing section is provided having oppositely disposed recesses formed in its inner periphery that have semi-circular
3931549 Control circuit for electromagnetic transducer January 6, 1976
An electronic circuit including a transistor which is biased to conduction is provided to initiate actuation of an electromagnetic transducer. The transducer has first and second coils one of which actuates the sounder. A potential is induced in the other coil and this induced potential
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