GB532908A - Improvements in electrical switches to prevent the unauthorised use of motor vehicles - Google Patents

Improvements in electrical switches to prevent the unauthorised use of motor vehicles

Info

Publication number
GB532908A
GB532908A GB2657139A GB2657139A GB532908A GB 532908 A GB532908 A GB 532908A GB 2657139 A GB2657139 A GB 2657139A GB 2657139 A GB2657139 A GB 2657139A GB 532908 A GB532908 A GB 532908A
Authority
GB
United Kingdom
Prior art keywords
plate
depression
buttons
bar
switch
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
GB2657139A
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.)
SIDNEY BAYNES
Original Assignee
SIDNEY BAYNES
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 SIDNEY BAYNES filed Critical SIDNEY BAYNES
Priority to GB2657139A priority Critical patent/GB532908A/en
Publication of GB532908A publication Critical patent/GB532908A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/10—Switch operated by setting members according to a single predetermined combination out of several possible settings

Landscapes

  • Push-Button Switches (AREA)

Abstract

532,908. Secret combination switches. WHITTLE, H., and BAYNES, S. Sept. 25, 1939, No. 26571. [Class 38 (v)] In a secret combination switch having a circle of depressible buttons 1 on a dial, depression of, say, 'four selected buttons in the correct order will rotate step by step a plate 11 to operate the switch; depression of any other button will rotate another plate 9 which will release the plate 11 causing this to return to its original position. The switch itself consists of a bar 6 pivoted at 18 and controlled by a dead-centre spring 17. It is moved into the "off" position by depression of a central push button 2 having a cam at its end which engages the side of the bar. To move it back into the " on position, the four selected buttons are depressed. They are relatively long and have wedge shaped ends which bear against projections 12 on the plate 11 rotating this step by step against a spring till a stop 13 engages the bar 6 and pushes this back across the dead-centre position. Return of the plate 11 is prevented by a ratchet mechanism 14 arranged between the plate 11 and the other plate 9. The other buttons are relatively short and depression of any one of them rotates a plate 9 in a similar way. This movement disengages the pawl of the ratchet from the teeth and the plate 11 returns to its normal position. Specification 458,688, [Group XXXI], is referred to.
GB2657139A 1939-09-25 1939-09-25 Improvements in electrical switches to prevent the unauthorised use of motor vehicles Expired GB532908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2657139A GB532908A (en) 1939-09-25 1939-09-25 Improvements in electrical switches to prevent the unauthorised use of motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2657139A GB532908A (en) 1939-09-25 1939-09-25 Improvements in electrical switches to prevent the unauthorised use of motor vehicles

Publications (1)

Publication Number Publication Date
GB532908A true GB532908A (en) 1941-02-03

Family

ID=10245732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2657139A Expired GB532908A (en) 1939-09-25 1939-09-25 Improvements in electrical switches to prevent the unauthorised use of motor vehicles

Country Status (1)

Country Link
GB (1) GB532908A (en)

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