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GB1196115A - Improvements in or relating to Rotary Electrical Switching Devices - Google Patents

Improvements in or relating to Rotary Electrical Switching Devices

Info

Publication number
GB1196115A
GB1196115A GB4073566A GB4073566A GB1196115A GB 1196115 A GB1196115 A GB 1196115A GB 4073566 A GB4073566 A GB 4073566A GB 4073566 A GB4073566 A GB 4073566A GB 1196115 A GB1196115 A GB 1196115A
Authority
GB
United Kingdom
Prior art keywords
switch
contact
operated
short
pulse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4073566A
Inventor
Gordon Francis Hodges
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB4073566A priority Critical patent/GB1196115A/en
Priority to DE19671665381 priority patent/DE1665381A1/en
Publication of GB1196115A publication Critical patent/GB1196115A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

1,196,115. Mechanical switches without quick-action. PLESSEY CO. Ltd. 8 Sept., 1967 [12 Sept., 1966], No. 40735/66. Heading H1N. On rotation of a transparent cap 10, through a shaft 8, gears (7) and a motor 6, a cam 11 thereon sequentially depresses projecting pins 3 of switches mounted in a fixed insulating annular body 2 so that the pins 3 will project from the inner surface 4 thereof. Such operation of a switch causes a resistor to be switched into a bridge circuit and if its value is too large it is switched out and the rest lower valve resistor in sequence is tried when the next pin 3 is operated. For resistances that are too large, a pulse is delivered to a solenoid 9 which attracts a lever 14 hinged on a member 13 on cap 10, so as to bring said lever 14 into the plane of pins 3, and during rotation of cap 10 lever 14 depresses the pins 3 projecting from the inner surface 4 to sequentially release the switches. A wiper contact 16 on cap 10 sweeps long and short contacts 17, 18 and a continuous contact 19, short contacts 18 being connected to a pulse generator and contact 19 to a magnetic tape recorder. When a switch is operated its long contact is connected through circuitry to its short contact and thus to the pulse generator. When a switch is released, the connection between the long contact and pulse generator is broken. As the contacts are wiped, one pulse is recorded for each switch. If a switch is operated and released before the next switch operated, a short pulse is recorded since it is applied via the short contact for a short while. If the switch is not released before the next one is operated, a long pulse is recorded since it is applied via the long contact for a longer while. At the end of a sequence, the solenoid is operated to reset all the switches. The operational positions of the switches may be recorded in binary code.
GB4073566A 1966-09-12 1966-09-12 Improvements in or relating to Rotary Electrical Switching Devices Expired GB1196115A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4073566A GB1196115A (en) 1966-09-12 1966-09-12 Improvements in or relating to Rotary Electrical Switching Devices
DE19671665381 DE1665381A1 (en) 1966-09-12 1967-09-08 Electric rotary switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4073566A GB1196115A (en) 1966-09-12 1966-09-12 Improvements in or relating to Rotary Electrical Switching Devices

Publications (1)

Publication Number Publication Date
GB1196115A true GB1196115A (en) 1970-06-24

Family

ID=10416359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4073566A Expired GB1196115A (en) 1966-09-12 1966-09-12 Improvements in or relating to Rotary Electrical Switching Devices

Country Status (2)

Country Link
DE (1) DE1665381A1 (en)
GB (1) GB1196115A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072115A1 (en) * 1981-08-03 1983-02-16 General Motors Corporation Remote control unit
US4481585A (en) * 1981-08-03 1984-11-06 General Motors Corporation System for selectively controlling motor vehicle electrical loads

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072115A1 (en) * 1981-08-03 1983-02-16 General Motors Corporation Remote control unit
US4481585A (en) * 1981-08-03 1984-11-06 General Motors Corporation System for selectively controlling motor vehicle electrical loads

Also Published As

Publication number Publication date
DE1665381A1 (en) 1971-09-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees