GB645595A - Improvements in delay-action retractive electric switches - Google Patents

Improvements in delay-action retractive electric switches

Info

Publication number
GB645595A
GB645595A GB27939/48A GB2793948A GB645595A GB 645595 A GB645595 A GB 645595A GB 27939/48 A GB27939/48 A GB 27939/48A GB 2793948 A GB2793948 A GB 2793948A GB 645595 A GB645595 A GB 645595A
Authority
GB
United Kingdom
Prior art keywords
contacts
delay
retractive
clockwork
lever
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
GB27939/48A
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 GB27939/48A priority Critical patent/GB645595A/en
Priority to US123195A priority patent/US2636089A/en
Priority to DEM203A priority patent/DE814184C/en
Priority to FR998278D priority patent/FR998278A/en
Publication of GB645595A publication Critical patent/GB645595A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H7/00—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
    • H01H7/08—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with timing by mechanical speed-control devices

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

645,595. Retractive switches ; momentary contact switches. MIDGLEY, A. H. Oct. 27, 1948, Nos. 27939 and 31501. [Class 38(v)] A time-delay retractive switch particularly for use with traffic indicators, has supplementary contacts which are periodically opened and closed during the period of delay in which the main contacts are closed. The switch is of the type having a central "off " position and the movement of an operating handle (not shown) to one side or the other of the central position closes a circuit between a moving contact member d and either of two blade spring contact-members e or f. At the same time the movement of the handle winds up a clockwork mechanism, (not shown) which, when the handle is released, runs down and after a predetermined interval, restores the contact-member d to its central "off" position. Connected to the first wheel of the clockwork train by a sleeve is a toothed wheel k<SP>3</SP>, the teeth of which co-operate with a pin o' on a pivoted lever o. The free end of lever o carries an insulated projection o<SP>2</SP> which acts on an extension of a spring contact arm m having contacts m<SP>1</SP> which co-operate with fixed contacts m<SP>2</SP>. Thus as the clockwork train runs down, the arm m is oscillated by the lever o causing the periodic opening and closing of the contacts m<SP>1</SP>, m<SP>2</SP>. In Figs. 1-5 (not shown) a supplementary switch is shown with a single set of contacts operated from the second wheel of the clockwork train and giving only half the number of flashes. In Fig. 7 (not shown) a modified arrangement of fixed and movable contacts d-f is illustrated.
GB27939/48A 1948-10-27 1948-10-27 Improvements in delay-action retractive electric switches Expired GB645595A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB27939/48A GB645595A (en) 1948-10-27 1948-10-27 Improvements in delay-action retractive electric switches
US123195A US2636089A (en) 1948-10-27 1949-10-24 Electric switch
DEM203A DE814184C (en) 1948-10-27 1949-10-26 Electric switch
FR998278D FR998278A (en) 1948-10-27 1949-10-27 Electric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27939/48A GB645595A (en) 1948-10-27 1948-10-27 Improvements in delay-action retractive electric switches

Publications (1)

Publication Number Publication Date
GB645595A true GB645595A (en) 1950-11-01

Family

ID=10267706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27939/48A Expired GB645595A (en) 1948-10-27 1948-10-27 Improvements in delay-action retractive electric switches

Country Status (4)

Country Link
US (1) US2636089A (en)
DE (1) DE814184C (en)
FR (1) FR998278A (en)
GB (1) GB645595A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089608B (en) * 1956-10-04 1960-09-22 Schleicher Relaisbau K G Gear drive with a central arrangement of the drive shaft

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924312C (en) * 1952-05-20 1955-02-28 Attilio Lillo Time switch, especially for direction indicators
DE951616C (en) * 1954-01-19 1956-10-31 Scintilla Ag Switch for direction indicators on motor vehicles
DE929294C (en) * 1954-03-18 1955-07-11 Karl Potthast Direction indicator switch for vehicles
US2874238A (en) * 1956-09-14 1959-02-17 Tecalemit Ltd Variable time switches
DE1130895B (en) * 1958-12-04 1962-06-07 Heliowatt Werke Elek Zitaets A Timer for the optional automatic switching on and off of two circuits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1151848A (en) * 1915-08-31 Slocum Avram & Slocum Inc Automatic time-switch.
US1672791A (en) * 1925-09-04 1928-06-05 Thimblethorpe Wilfre Sylvester Electrical switch
DE463932C (en) * 1926-03-03 1928-08-04 Cligno Signal Sa Du Electric switch for direction indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089608B (en) * 1956-10-04 1960-09-22 Schleicher Relaisbau K G Gear drive with a central arrangement of the drive shaft

Also Published As

Publication number Publication date
FR998278A (en) 1952-01-16
DE814184C (en) 1951-09-20
US2636089A (en) 1953-04-21

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