GB978803A - Improvements in or relating to locks - Google Patents

Improvements in or relating to locks

Info

Publication number
GB978803A
GB978803A GB3228060A GB3228060A GB978803A GB 978803 A GB978803 A GB 978803A GB 3228060 A GB3228060 A GB 3228060A GB 3228060 A GB3228060 A GB 3228060A GB 978803 A GB978803 A GB 978803A
Authority
GB
United Kingdom
Prior art keywords
operated
alarm
lock
circuit
switches
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
GB3228060A
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.)
MELTON GARAGE AND ENGINEERING
Original Assignee
MELTON GARAGE AND ENGINEERING
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 MELTON GARAGE AND ENGINEERING filed Critical MELTON GARAGE AND ENGINEERING
Priority to GB3228060A priority Critical patent/GB978803A/en
Publication of GB978803A publication Critical patent/GB978803A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00674—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

978,803. Electrically-operated locks. MELTON GARAGE & ENGINEERING CO. Ltd., and A.T.V. JOHNSON. Oct. 26, 1961 [Sept. 20, 1960], No.32280/60. Heading E2A. In association with an electro-magnetically operated lock, a combination switching system comprises at least two settable switches and a push button controlling the release of the lock, and means whereby in the event of an incorrect setting of the switches the gear is rendered inoperative or/and an alarm operated when the push-button is operated. Fig. 1 illustrates a circuit in which in the event of two switches 13, 17 being set to anv other than the positions 16<SP>1</SP>, 21<SP>1</SP>, respectively, upon operation of push buton 10, current through a relay coil 29, breaks the circuit 2<SP>1</SP>, to the lock and makes a circuit 32 to an alarm 38, and the current then remains on to the alarm 38 after the release of button 10. Several alternative circuits are shown.
GB3228060A 1960-09-20 1960-09-20 Improvements in or relating to locks Expired GB978803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3228060A GB978803A (en) 1960-09-20 1960-09-20 Improvements in or relating to locks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3228060A GB978803A (en) 1960-09-20 1960-09-20 Improvements in or relating to locks

Publications (1)

Publication Number Publication Date
GB978803A true GB978803A (en) 1964-12-23

Family

ID=10336157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3228060A Expired GB978803A (en) 1960-09-20 1960-09-20 Improvements in or relating to locks

Country Status (1)

Country Link
GB (1) GB978803A (en)

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