Wagner Electric

About: Wagner Electric is a based out in . It is known for research contribution in the topics: Brake & Brake shoe. The organization has 199 authors who have published 425 publications receiving 3311 citations. The organization is also known as: Wagner Electric Corporation.

Polyphase reaction synchronous motors

Abstract: THE reaction synchronous motor in its present form (salient-pole rotor without field coils) is one of the oldest types of electric motors, antedating the induction motor by many years. At first it was used only in connection with instruments, such as the oscillograph etc.; later its simplicity and exactness in keeping in step made it the standard driving motor for rectifying devices such as are used for charging low-voltage batteries, supplying high-tension unidirectional current for x-ray and electric precipitation apparatus etc., where the power may amount to several h. p. It is, however, safe to say that the limit of output of the present type is practically reached; its low weight efficiency and poor performance are inadmissible in motors of larger output and seem to justify the general opinion that the reaction motor is inherently inferior to the other types of a-c. motors.

Brake control mechanism

Abstract: My invention relates to the control of the brakes of a motor vehicle and more particularly to improvements in the holding means for preventing the release of the brakes from applied position. One of the objects of my invention is to provide the holding means for preventing release of the brakes...

Control valve and system

Abstract: A CONTROL VALVE IS PROVIDED IN A HORIZONTALLY SPLIT BRAKE SYSTEM HAVING SEPARATE FLUID PRESSURE SUPPLIES WHEREIN AT LEAST ONE BRAKE OF THE FRONT AND REAR BRAKE SETS IS CONNECTED IN EACH SYSTEM, AND SAID CONTROL VALVE INCLUDES SEPARATE SPRING-LOADED PROPORTIONING PISTONS GENERALLY OPERABLE IN SAID SYSTEMS IN RESPONSE TO A PREDETERMINED VALUE OF THE FLUID PRESSURES SUPPLIED THERETO FROM SAID FLUID PRESSURE SUPPLIES TO THEREAFTER PROPORTION THE FLUID PRESSURES APPLIED TO THE REAR BRAKES. UPON THE FAILURE OF ONE SYSTEM, THE PROPORTIONING PISTON OF THE OTHER OR OPERATING SYSTEM IS OPERABLE NOT ONLY AGAINST ITS SPRING LOAD BUT ALSO AGAINST THE SPRING LOAD OF THE PROPORTIONING PISTON IN THE FAILED ONE SYSTEM TO INCREASE THE PREDETERMINED VALUE OF THE SUPPLIED FLUID PRESSURE AT WHICH THE PROPORTIONING ACTUATION THEREOF IS EFFECTED.

Reactively decoupled dual channel keying circuit for wide-band frequency modulated keyable control circuit

Abstract: A keyable control circuit, has sensing coils located in the vicinity of a plurality of locations where lock control is desired. At least one swept high-frequency oscillator, which is connected to each sensing coil, generates an rf signal, rapidly swept over a wide frequency band. When an external keying circuit, containing more than one resonant circuit, each correctly tuned to a predetermined keying frequency, is inductively coupled to a sensing coil, each resonant circuit absorbs rf energy as the oscillator frequency is swept past its resonant frequency. Electrical interaction between the resonant circuits is accomplished by reactive cancellation. Energy absorption in the external keying circuit induces corresponding reductions in rf energy in the sensing coil as the oscillator frequency is swept past the keying frequencies. Tuned detectors within the keyable control circuit produce a control signal when energy reduction is sensed at each of the predetermined keying frequencies. If correct absorption fails to occur at any one or more of the predetermined frequencies, the control signal is withheld. A time-gating system enables selective direction of the control signal to one or more using locations while excluding others. This function finds convenient application in automotive use where it is frequently desired to enable simultaneous unlocking of one or more doors while excluding unlocking of the deck lid. A dead-oscillator detector averts attempted actuation of the unlocking function by the coupling of untuned energy-absorbing material, such as iron, to a sensing coil.