GB432567A - An improved retractive electric switching device - Google Patents

An improved retractive electric switching device

Info

Publication number
GB432567A
GB432567A GB305234A GB305234A GB432567A GB 432567 A GB432567 A GB 432567A GB 305234 A GB305234 A GB 305234A GB 305234 A GB305234 A GB 305234A GB 432567 A GB432567 A GB 432567A
Authority
GB
United Kingdom
Prior art keywords
switching device
retractive
strips
electric switching
rubber sheet
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
GB305234A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB305234A priority Critical patent/GB432567A/en
Publication of GB432567A publication Critical patent/GB432567A/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

  • Switches Operated By Changes In Physical Conditions (AREA)
  • Push-Button Switches (AREA)

Abstract

432,567. Retractive switches. OSBORN, A. E., 27, Dallow Road, Luton, Bedfordshire. Jan. 30, 1934, No. 3052. [Class 38 (v)] A retractive switching device suitable for placing under a mat to give an alarm on being trodden on, comprises two conducting strips 1, 2 placed on opposite sides of a rubber sheet 3 through which the strips are threaded at intervals such as at 1<a>. At such points the strips are exposed to each other but held apart by the rubber sheet so that on pressure being applied contact is made.
GB305234A 1934-01-30 1934-01-30 An improved retractive electric switching device Expired GB432567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB305234A GB432567A (en) 1934-01-30 1934-01-30 An improved retractive electric switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB305234A GB432567A (en) 1934-01-30 1934-01-30 An improved retractive electric switching device

Publications (1)

Publication Number Publication Date
GB432567A true GB432567A (en) 1935-07-30

Family

ID=9751054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB305234A Expired GB432567A (en) 1934-01-30 1934-01-30 An improved retractive electric switching device

Country Status (1)

Country Link
GB (1) GB432567A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017252B (en) * 1954-07-09 1957-10-10 Franz Clouth Rheinische Gummiw Contact mat
DE1060455B (en) * 1957-07-27 1959-07-02 Franz Clouth Rheinische Gummiw Elastic contactor
US2939925A (en) * 1957-01-11 1960-06-07 Graviner Manufacturing Co Electric switches
US3230325A (en) * 1961-10-06 1966-01-18 William C Parkinson Pressure responsive switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017252B (en) * 1954-07-09 1957-10-10 Franz Clouth Rheinische Gummiw Contact mat
US2939925A (en) * 1957-01-11 1960-06-07 Graviner Manufacturing Co Electric switches
DE1060455B (en) * 1957-07-27 1959-07-02 Franz Clouth Rheinische Gummiw Elastic contactor
US3230325A (en) * 1961-10-06 1966-01-18 William C Parkinson Pressure responsive switch

Similar Documents

Publication Publication Date Title
GB432567A (en) An improved retractive electric switching device
GB470008A (en) Improvements in electric signalling or impulse transmitting mechanism
GB402446A (en) Improvements in or relating to automatic burglar alarms
GB247777A (en) Improvements in electrical contact devices
CA362064A (en) Electrical contact device
CA313679A (en) Resilient electrical contact device
FR826835A (en) Adjustable pressure elastic electrical contact device
CA313573A (en) Electrical contact device
GB428930A (en) Improvements in, or relating to, electrical switches of the snap-action type
GB304165A (en) Improvements in means for converting mechanical, acoustic, or the like impulses intoelectrical impulses
GB507010A (en) Improvements in or relating to lighting fittings
CA231101A (en) Electrical switching device
GB260618A (en)
CA237989A (en) Switch contact device
CA383173A (en) Electrical switching device
CA336160A (en) Electrical switching device
CA301286A (en) Electrical contact system
CA357214A (en) Electrical control device
CA399927A (en) Electrical switching device
GB616693A (en) Improvements in or relating to automatic switches
CA362950A (en) Electric circuit control device
CA344154A (en) Electrical contact system
CA219418A (en) Non-arcing commutating switch device
CA239546A (en) Space current device
CA317571A (en) Electrode housing for electric signs