US1751374A - Control apparatus - Google Patents

Control apparatus Download PDF

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Publication number
US1751374A
US1751374A US140667A US14066726A US1751374A US 1751374 A US1751374 A US 1751374A US 140667 A US140667 A US 140667A US 14066726 A US14066726 A US 14066726A US 1751374 A US1751374 A US 1751374A
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United States
Prior art keywords
cathode
switch
anode
control apparatus
circuit
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Expired - Lifetime
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US140667A
Inventor
Waltemath Adolf
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General Electric Co
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General Electric Co
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Publication date
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Publication of US1751374A publication Critical patent/US1751374A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/18—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for introducing delay in the operation of the relay

Definitions

  • the figure shows a switch 1 comprising a movable contact 2 which is biased to its closed position and is provided with an operating coil 3 supplied with current through suitable means shown as supply leads 4.
  • An electron discharge device 5 comprising an anode 6 and a cathode 7 is provided for producing a predetermined time delay between operation of the switch 1 and a switch 8 which is connected in a circuit 9 and is provided with a movable contact 10 and an operating coil 11. It will be observed that the anode 6 and cathode 7 are connected through the operating coil 11 to a source of current 12 and that heating current is supplied to the cathode 7 from a source 13 through an adjustable control device 14 and the switch 1.
  • the cathode heating circuit of the device 5 is interrupted.
  • the time interval between deenergization of the coil 3 and closure of the switch 8 is dependent on such factors as the structure and composition of the cathode and the voltages of the sources 12 and 13. It will be apparent that the cathode 7 may be an oxide cathode or any other type of cathode suitable for producin the desired time delay between operation 0 the switches 1 and 8, upon closure of the switch 1.
  • a switch 15 connected in the anode circuit of the device 5 is arranged to be operated by the coil 3 which also operates the switch 1. Under these conditions, the switch 8 is instantaneously decnergized upon energization of the circuit 4 and is energized at a predetermined time after deenergization of this circuit. The switch 8 is thus closed instantaneously and opened with a predetermined time delay.
  • an electron discharge device comprising a cathode and an anode, means connected between said cathode and anode for changing the connections of one of said circuits,aswitch operable upon energization and deeenergization of another of said circuits to open and close the heating circuit of said cathode, and means arranged to interrupt the connection between said cathode and anode only when said switch is opened.

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Description

March 18, 1930. Y WALTEMATH 1,751,374
CONTROL APPARATUS Filed Oct. 9, 1926 Inventor: Adolf A/altema'th,
His Attormey Patented Mar. 18, 1930 UNITED STATES PATENT OFFICE ADOLF WALTEMATH, OF OBEBSCEONEWEIDE, GERMANY, ASSIGNOR TO GENERAL ELEC- TRIO COMPANY, A CORPORATION OF NEW YORK CONTROL APPARATUS Application filed October 9, 1926, Serial No. 140,667, and in Germany September 3, 1925.
duce a predetermined time delay between different switching operations.
It is known that a certain time interval 1s 10 required for the plate or anode current of an electron discharge device to reach a predetermined value after current is first su plied to the cathode heating circuit of the evice. The duration of this time interval is dependcut on several factors such as the cathode construction, the materials of which the cathode so from the following description when considered in connection with the accompanying drawings and its scope will be pointed out in Y the appended claims.
Referring to the drawing, the single figure thereof shows a control apparatus wherein my invention has been embodied.
The figure shows a switch 1 comprising a movable contact 2 which is biased to its closed position and is provided with an operating coil 3 supplied with current through suitable means shown as supply leads 4. An electron discharge device 5 comprising an anode 6 and a cathode 7 is provided for producing a predetermined time delay between operation of the switch 1 and a switch 8 which is connected in a circuit 9 and is provided with a movable contact 10 and an operating coil 11. It will be observed that the anode 6 and cathode 7 are connected through the operating coil 11 to a source of current 12 and that heating current is supplied to the cathode 7 from a source 13 through an adjustable control device 14 and the switch 1.
With these connections, current is transmitted through the operating coil 11 and the 'switch 8 is maintained in its open position so long as the operating coil 3 is deenergized. Upon energization of the coil 3, however, the cathode heating circuit of the device 5 is interrupted. The time interval between deenergization of the coil 3 and closure of the switch 8 is dependent on such factors as the structure and composition of the cathode and the voltages of the sources 12 and 13. It will be apparent that the cathode 7 may be an oxide cathode or any other type of cathode suitable for producin the desired time delay between operation 0 the switches 1 and 8, upon closure of the switch 1.
A switch 15 connected in the anode circuit of the device 5 is arranged to be operated by the coil 3 which also operates the switch 1. Under these conditions, the switch 8 is instantaneously decnergized upon energization of the circuit 4 and is energized at a predetermined time after deenergization of this circuit. The switch 8 is thus closed instantaneously and opened with a predetermined time delay.
The embodiments of the invention illustrated and described herein have been selected for the purpose of clearly setting forth the principles involved. It will be apparent, however, that the invention is susceptible of being modified to meet the different conditions encountered in its use and I therefore aim to cover by the appended claims all modifications within the true spirit and scope of my invention.
What I claim as new and desire to secure by Letters Patent of the United States, is,-
1. The combination of a plurality of circuits, an electron discharge device comprising a cathode and an anode, means connected between said cathode and anode for changing the connections of one of said circuits,aswitch operable upon energization and deeenergization of another of said circuits to open and close the heating circuit of said cathode, and means arranged to interrupt the connection between said cathode and anode only when said switch is opened.
2. The combination of an electrical circuit, an electron dischar e device provided with anode and cathode eating circuits, electroresponsive means connected in said anode circuit for controlling the connectionsof said electrical circuit, and means associated with said anode and cathode heating circuits for instantaneously deenergizing said electroresponsive means and for ener izing said electroresponsive means only a er a predetermined interval of time.
In witness whereof, I have hereunto set my hand this 17th day of September, 1926.
ADOLF WALTEMATH.
US140667A 1925-09-03 1926-10-09 Control apparatus Expired - Lifetime US1751374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1751374X 1925-09-03

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US1751374A true US1751374A (en) 1930-03-18

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US140667A Expired - Lifetime US1751374A (en) 1925-09-03 1926-10-09 Control apparatus

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534299A (en) * 1945-07-09 1950-12-19 Alfonso J Ruiz Electronic timer
US2539208A (en) * 1948-04-01 1951-01-23 Westinghouse Electric Corp Flame control device
US2611011A (en) * 1949-02-26 1952-09-16 Honeywell Regulator Co Electrical timing apparatus
US2662155A (en) * 1951-04-20 1953-12-08 James C Heintz & Company Inc Electronic relay control
US2944104A (en) * 1957-07-29 1960-07-05 Jr Leo E Neagle Teletypewriter remote cutoef system
US3178607A (en) * 1960-07-18 1965-04-13 Elox Corp Michigan Edm time delay bias
US3503403A (en) * 1967-04-27 1970-03-31 Medical Electronics Corp Power supply

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534299A (en) * 1945-07-09 1950-12-19 Alfonso J Ruiz Electronic timer
US2539208A (en) * 1948-04-01 1951-01-23 Westinghouse Electric Corp Flame control device
US2611011A (en) * 1949-02-26 1952-09-16 Honeywell Regulator Co Electrical timing apparatus
US2662155A (en) * 1951-04-20 1953-12-08 James C Heintz & Company Inc Electronic relay control
US2944104A (en) * 1957-07-29 1960-07-05 Jr Leo E Neagle Teletypewriter remote cutoef system
US3178607A (en) * 1960-07-18 1965-04-13 Elox Corp Michigan Edm time delay bias
US3503403A (en) * 1967-04-27 1970-03-31 Medical Electronics Corp Power supply

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