GB630450A - Improvements in and relating to electric switching devices for making up into resilient alarm mats - Google Patents

Improvements in and relating to electric switching devices for making up into resilient alarm mats

Info

Publication number
GB630450A
GB630450A GB827647A GB827647A GB630450A GB 630450 A GB630450 A GB 630450A GB 827647 A GB827647 A GB 827647A GB 827647 A GB827647 A GB 827647A GB 630450 A GB630450 A GB 630450A
Authority
GB
United Kingdom
Prior art keywords
strips
resilient
switching devices
relating
making
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
GB827647A
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.)
FRANK JOSEPH BECKER
JOHN LESLIE HAWKES
Original Assignee
FRANK JOSEPH BECKER
JOHN LESLIE HAWKES
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 FRANK JOSEPH BECKER, JOHN LESLIE HAWKES filed Critical FRANK JOSEPH BECKER
Priority to GB827647A priority Critical patent/GB630450A/en
Publication of GB630450A publication Critical patent/GB630450A/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
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches

Landscapes

  • Push-Button Switches (AREA)

Abstract

630,450. Retractive switches. HAWKES, J. L., and BECKER, F. J. March 26, 1947, No. 8276. [Class 38(v)] [Also in Group XXXVIII] A mat comprises a thin insulating envelope 4, 17 containing switching devices 5 which close an alarm circuit when trodden upon. Each switch 5 has a lower metal strip 6 and an upper spring strip 7 separated at intervals by non-resilient insulators 8 and held together by rubber sleeves 11, 12. Rivet contacts 9 are carried by one or both. of the strips 6, 7. Rigid wires 13, 14 connected to one end of the lower and upper strips respectively are connected to the alarm circuit and also space the switches in the envelope, the other ends of the strips being connected by wires 15, 16. Instead of the insulators 8, the strips 6, 7 may be separated by common insulating strips parallel to the width of the mat.
GB827647A 1947-03-26 1947-03-26 Improvements in and relating to electric switching devices for making up into resilient alarm mats Expired GB630450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB827647A GB630450A (en) 1947-03-26 1947-03-26 Improvements in and relating to electric switching devices for making up into resilient alarm mats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB827647A GB630450A (en) 1947-03-26 1947-03-26 Improvements in and relating to electric switching devices for making up into resilient alarm mats

Publications (1)

Publication Number Publication Date
GB630450A true GB630450A (en) 1949-10-13

Family

ID=9849388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB827647A Expired GB630450A (en) 1947-03-26 1947-03-26 Improvements in and relating to electric switching devices for making up into resilient alarm mats

Country Status (1)

Country Link
GB (1) GB630450A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5629675A (en) * 1992-12-16 1997-05-13 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Vehicle intruder detection system
GB2328318A (en) * 1997-08-14 1999-02-17 Draftex Ind Ltd Force-responsive sensor
US6281455B1 (en) 1997-08-14 2001-08-28 Draftex Industries Limited Force-responsive detectors and systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5629675A (en) * 1992-12-16 1997-05-13 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Vehicle intruder detection system
GB2328318A (en) * 1997-08-14 1999-02-17 Draftex Ind Ltd Force-responsive sensor
US6281455B1 (en) 1997-08-14 2001-08-28 Draftex Industries Limited Force-responsive detectors and systems
GB2328318B (en) * 1997-08-14 2001-12-19 Draftex Ind Ltd Force-responsive detectors and systems

Similar Documents

Publication Publication Date Title
GB1455521A (en) Pushbutton keyboard system
GB908953A (en) Improvements in electric switching floor mats
GB885161A (en) Improvements in snap acting device
GB630450A (en) Improvements in and relating to electric switching devices for making up into resilient alarm mats
GB629300A (en) Improvements in electrical snap acting switches
GB576345A (en) Gas-blast circuit breaker with resistance
GB721690A (en) Improvements relating to electric changeover switches
GB626194A (en) Improvements in and connected with electric switch fuses
GB1161017A (en) Improvements in or relating to electric switches
GB669293A (en) An electric contact maker or switch suitable for use on public service vehicles
GB626573A (en) An improved electric switch
GB875203A (en) Push button electric switch
GB596458A (en) Improvements in electric switches for flexible conductors
GB562631A (en) Improvements in or relating to electric switches having resilient movable contacts
GB634051A (en) Improvements in snap action electric switches
GB741924A (en) Improvements in dolly-operated electric switches
GB466938A (en) Improvements in and relating to devices for making electrical contact when subjected to pressure
GB645766A (en) Improvements in or relating to combined electric switch and fuse devices
GB669079A (en) Improvements in or relating to electric switches having sequentially operated contacts
GB737836A (en) Improvements in and relating to electric time switches
CH356511A (en) Electrical switching device with an overload protection switch
GB546435A (en) Improvements connected with electrical switch-gear and contact arrangements therefor
GB815431A (en) Improvements in electric disconnecting switches
GB866470A (en) Improvements in or relating to electric snap switches
GB824030A (en) Improvements in or relating to electric tumbler switches