GB641135A - Improvements in indexing mechanism for rotary electric switches - Google Patents

Improvements in indexing mechanism for rotary electric switches

Info

Publication number
GB641135A
GB641135A GB1655648A GB1655648A GB641135A GB 641135 A GB641135 A GB 641135A GB 1655648 A GB1655648 A GB 1655648A GB 1655648 A GB1655648 A GB 1655648A GB 641135 A GB641135 A GB 641135A
Authority
GB
United Kingdom
Prior art keywords
detent
star
wheel
spring
tooth
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
GB1655648A
Inventor
Gordon Herbert Francis Walton
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.)
DIAMOND H SWITCHES Ltd
Original Assignee
DIAMOND H SWITCHES Ltd
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 DIAMOND H SWITCHES Ltd filed Critical DIAMOND H SWITCHES Ltd
Priority to GB1655648A priority Critical patent/GB641135A/en
Priority to FR980625D priority patent/FR980625A/en
Publication of GB641135A publication Critical patent/GB641135A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

641,135. Snap-action switches. DIAMOND H. SWITCHES, Ltd. June 19, 1948, No. 16556. [Class 38(v)] Indexing mechanism for a rotary, manually - operated, switch, comprises a spring-loaded detent i engaging between the teeth of a star-wheel a mounted on the operating shaft b, one or more of the star-wheel teeth having means for forcing the detent i outwardly more than normal when moving from the corresponding switch position. As shown, a disc p having a longer tooth r masks a tooth of the star-wheel whereby the detent i must be further deflected against its spring f and the increased resistance to rotation causes a slight delay in the switch operation at that position. This is desirable when switching from one 50-cycle circuit to another of opposite polarity since, if the switching time is less than 1/100 sec., the presence of arcing would produce a short-circuit. The resistance may be further increased by a leafspring u which is compressed by the detent i when the latter is engaged by the tip of the tooth r. To ensure correct positioning of the shaft b, a spring-loaded arm j having a flat surface o engages the tips of two adjacent star-wheel teeth.
GB1655648A 1948-06-19 1948-06-19 Improvements in indexing mechanism for rotary electric switches Expired GB641135A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1655648A GB641135A (en) 1948-06-19 1948-06-19 Improvements in indexing mechanism for rotary electric switches
FR980625D FR980625A (en) 1948-06-19 1949-02-11 Advanced divider mechanism for rotary switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1655648A GB641135A (en) 1948-06-19 1948-06-19 Improvements in indexing mechanism for rotary electric switches

Publications (1)

Publication Number Publication Date
GB641135A true GB641135A (en) 1950-08-02

Family

ID=10079435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1655648A Expired GB641135A (en) 1948-06-19 1948-06-19 Improvements in indexing mechanism for rotary electric switches

Country Status (2)

Country Link
FR (1) FR980625A (en)
GB (1) GB641135A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784280A (en) * 1953-01-30 1957-03-05 Shepard Co Lewis Control handle for circuit selector
US2794103A (en) * 1953-03-04 1957-05-28 Vapor Heating Corp Temperature selector switch
US3226999A (en) * 1963-01-28 1966-01-04 Cts Corp Indexing-detent mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784280A (en) * 1953-01-30 1957-03-05 Shepard Co Lewis Control handle for circuit selector
US2794103A (en) * 1953-03-04 1957-05-28 Vapor Heating Corp Temperature selector switch
US3226999A (en) * 1963-01-28 1966-01-04 Cts Corp Indexing-detent mechanism

Also Published As

Publication number Publication date
FR980625A (en) 1951-05-16

Similar Documents

Publication Publication Date Title
GB641135A (en) Improvements in indexing mechanism for rotary electric switches
GB1284976A (en) Hazard warning switch
GB618226A (en) Improvements in and relating to electric snap-action switches
US2242517A (en) Automatic electric time switch
GB645595A (en) Improvements in delay-action retractive electric switches
GB676937A (en) Three-position electric switch
GB658602A (en) Improvements in operating mechanism for quick make and break electric switches
GB537356A (en) Improvements relating to contacts for electric circuit breakers
GB672740A (en) Improvements in and relating to rotary cam actuated electrical switches
GB534961A (en) Improvements in or relating to electric motor controllers and snap-action electric switches for use therein
GB1272458A (en) A time switch
US972999A (en) Electric reversing-switch.
GB496483A (en) Portable electric drills and and the like
GB664257A (en) Electrical switch and variable resistor for miniature electrical apparatus
GB674790A (en) Improvements in or relating to double pole electric snap switches
GB589483A (en) Improvements in push-button devices for use in controlling electric circuits
GB363175A (en) Improvements in or relating to quick action electric switches
GB530660A (en) Improvements in and relating to multi-way electric switches
GB202815A (en) Improvements in or relating to electric switches
GB538292A (en) Improvements in and relating to electric switches adapted for controlling a plurality of circuits
GB672384A (en) Improvements in electro-magnetically-trippable relays
GB695850A (en) Improvements in and relating to electric refrigerator controls
GB380416A (en) Apparatus for indicating the direction of travel by means of electro-magnetically actuated direction indicators, in particular for motor vehicles
GB632715A (en) Improvements in and relating to double-throw electric switches
GB610490A (en) Improvements in or relating to electric switches, particularly for use on alternating current circuits