GB392936A - Improvements in or relating to burglar alarms and other automatic signalling devices - Google Patents

Improvements in or relating to burglar alarms and other automatic signalling devices

Info

Publication number
GB392936A
GB392936A GB3265231A GB3265231A GB392936A GB 392936 A GB392936 A GB 392936A GB 3265231 A GB3265231 A GB 3265231A GB 3265231 A GB3265231 A GB 3265231A GB 392936 A GB392936 A GB 392936A
Authority
GB
United Kingdom
Prior art keywords
mat
class
rubber
layer
studs
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
GB3265231A
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 GB3265231A priority Critical patent/GB392936A/en
Publication of GB392936A publication Critical patent/GB392936A/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

  • Laminated Bodies (AREA)

Abstract

392,936. Retractive switches. PEARSON, J., 31, Clifford Street, and BAINTON, W., 54, Rusholme Road, both in Chorltonon-Medlock, Manchester. Nov. 25, 1931, No. 32652. [Class 38 (v).] In automatic alarms for protecting buildings and motor vehicles of the kind in which a person by stepping on a mat a closes an electric circuit f operating signals i, j, the mat comprises an outer covering of carpet or rubber k and two layers b, e of metal gauze separated by a layer of cellular rubber d, studs or spikes c being spaced over the area of the mat to form points' of contact between the metal layers when the mat is depressed. The studs may be formed on both metal layers. Fig. 4 shows a loose contact piece l resting on the lower metal layer and engaging an aperture in the rubber layer d. The mat may be used to protect a motor vehicle by completing the horn circuit and breaking the ignition circuit ; for this purpose it may be depressed by the movement of the clutch pedal. Reference has been directed by the Comptroller to Specifications 3842/83, [Class 38, Electricity, Regulating &c.], 14742/10, [Class 38 (v), Electric switches &c.], and 342,157.
GB3265231A 1931-11-25 1931-11-25 Improvements in or relating to burglar alarms and other automatic signalling devices Expired GB392936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3265231A GB392936A (en) 1931-11-25 1931-11-25 Improvements in or relating to burglar alarms and other automatic signalling devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3265231A GB392936A (en) 1931-11-25 1931-11-25 Improvements in or relating to burglar alarms and other automatic signalling devices

Publications (1)

Publication Number Publication Date
GB392936A true GB392936A (en) 1933-05-25

Family

ID=10341958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3265231A Expired GB392936A (en) 1931-11-25 1931-11-25 Improvements in or relating to burglar alarms and other automatic signalling devices

Country Status (1)

Country Link
GB (1) GB392936A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625621A (en) * 1950-02-11 1953-01-13 Stanley Works Electric mat switch
US2780693A (en) * 1953-08-10 1957-02-05 Huron Specialty Company Pressure switch
US2783327A (en) * 1955-01-17 1957-02-26 John A Luckey Molded metal-backed electrical mat switch and method of making the same
US3704352A (en) * 1971-11-17 1972-11-28 John G Fontaine Composite seat and switch
GB2128031A (en) * 1982-09-30 1984-04-18 Minnesota Mining & Mfg Pressure sensitive switchmats
GB2134714A (en) * 1982-12-30 1984-08-15 Petri Ag Signal transmitter switch
US4554424A (en) * 1983-05-27 1985-11-19 Minnesota Mining And Manufacturing Co. Electrical switch
GB2321136A (en) * 1996-12-04 1998-07-15 Hodgkinson & Corby Limited Inflatable cellular support cushion or mattress detector
GB2346737A (en) * 1999-02-09 2000-08-16 Jordan Advertising Limited Switch for use in an advertising appliance

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625621A (en) * 1950-02-11 1953-01-13 Stanley Works Electric mat switch
US2780693A (en) * 1953-08-10 1957-02-05 Huron Specialty Company Pressure switch
US2783327A (en) * 1955-01-17 1957-02-26 John A Luckey Molded metal-backed electrical mat switch and method of making the same
US3704352A (en) * 1971-11-17 1972-11-28 John G Fontaine Composite seat and switch
GB2128031A (en) * 1982-09-30 1984-04-18 Minnesota Mining & Mfg Pressure sensitive switchmats
EP0109159A1 (en) * 1982-09-30 1984-05-23 Minnesota Mining And Manufacturing Company Pressure sensitive switchmats
GB2134714A (en) * 1982-12-30 1984-08-15 Petri Ag Signal transmitter switch
US4554424A (en) * 1983-05-27 1985-11-19 Minnesota Mining And Manufacturing Co. Electrical switch
GB2321136A (en) * 1996-12-04 1998-07-15 Hodgkinson & Corby Limited Inflatable cellular support cushion or mattress detector
GB2321136B (en) * 1996-12-04 2000-10-11 Hodgkinson & Corby Limited Inflatable cellular support cushion or mattress detector
GB2346737A (en) * 1999-02-09 2000-08-16 Jordan Advertising Limited Switch for use in an advertising appliance

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