GB853438A - Time control switches - Google Patents

Time control switches

Info

Publication number
GB853438A
GB853438A GB1220756A GB1220756A GB853438A GB 853438 A GB853438 A GB 853438A GB 1220756 A GB1220756 A GB 1220756A GB 1220756 A GB1220756 A GB 1220756A GB 853438 A GB853438 A GB 853438A
Authority
GB
United Kingdom
Prior art keywords
cam
pendulums
april
motor
switches
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
GB1220756A
Inventor
William Herbert Smith
Leonard Arthur Pollard
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.)
Trianco Ltd
Original Assignee
Trianco 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 Trianco Ltd filed Critical Trianco Ltd
Priority to GB1220756A priority Critical patent/GB853438A/en
Publication of GB853438A publication Critical patent/GB853438A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F3/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
    • G04F3/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with electric driving mechanisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

853,438. Interrupters. TRIANCO Ltd. April 17, 1957 [April 20, 1956], No. 12207/56. Class 38 (5). A cam 3 rotatable by, for example, a synchronous motor, has three recesses 5 in its periphery which, by means of cam followers 10, release pendulums 7, 8 alternately, the pendulums carrying pins 9 which engage the ends of resilient operating levers 11 of micro-switches 12. Operation of the latter occurs after the pendulums have passed their lowermost position and the switches restore when the pendulums swing outwardly with the cam follower at rest on the cam periphery. The cam may be interchangeable for varying the timing and gearing may be provided between it and the motor for the same purpose. The Specification refers also to intermittent operation of the motor under control of a fan supplying forced air to a boiler.
GB1220756A 1956-04-20 1956-04-20 Time control switches Expired GB853438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1220756A GB853438A (en) 1956-04-20 1956-04-20 Time control switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1220756A GB853438A (en) 1956-04-20 1956-04-20 Time control switches

Publications (1)

Publication Number Publication Date
GB853438A true GB853438A (en) 1960-11-09

Family

ID=10000297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1220756A Expired GB853438A (en) 1956-04-20 1956-04-20 Time control switches

Country Status (1)

Country Link
GB (1) GB853438A (en)

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