GB516349A - Improvements in, and connected with, switch control mechanism, particularly suitable for electric cookers - Google Patents

Improvements in, and connected with, switch control mechanism, particularly suitable for electric cookers

Info

Publication number
GB516349A
GB516349A GB1820538A GB1820538A GB516349A GB 516349 A GB516349 A GB 516349A GB 1820538 A GB1820538 A GB 1820538A GB 1820538 A GB1820538 A GB 1820538A GB 516349 A GB516349 A GB 516349A
Authority
GB
United Kingdom
Prior art keywords
drums
particularly suitable
control mechanism
switch control
driven
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
GB1820538A
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.)
JA Crabtree and Co Ltd
Original Assignee
JA Crabtree and Co 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 JA Crabtree and Co Ltd filed Critical JA Crabtree and Co Ltd
Priority to GB1820538A priority Critical patent/GB516349A/en
Publication of GB516349A publication Critical patent/GB516349A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/10—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches
    • G05B19/102—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches for input of programme steps, i.e. setting up sequence
    • G05B19/104—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches for input of programme steps, i.e. setting up sequence characterised by physical layout of switches; switches co-operating with display; use of switches in a special way

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Baking, Grill, Roasting (AREA)
  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)

Abstract

516,349. Mechanical make- and-break switches. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HARRISON, B. G. June 20, 1938, No. 18205. [Class 38 (v)] The heat to electric cooker, &c., is varied in infinitely small stages by switches comprising motor-driven drums having a conducting portion a' separated from a lower insulating portion by an inclined line h, the drums being adjustable vertically and being engaged by two fixed contacts i, j. The Figure shows three such drums slidable on a spindle b driven by a synchronous motor e which may also drive a clock f. The vertical position of each drum is determined by a cam c, movable by a handle d, and this determines the ratio of "make" to " break " in the circuit to the heater which includes the two contacts i, j.
GB1820538A 1938-06-20 1938-06-20 Improvements in, and connected with, switch control mechanism, particularly suitable for electric cookers Expired GB516349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1820538A GB516349A (en) 1938-06-20 1938-06-20 Improvements in, and connected with, switch control mechanism, particularly suitable for electric cookers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1820538A GB516349A (en) 1938-06-20 1938-06-20 Improvements in, and connected with, switch control mechanism, particularly suitable for electric cookers

Publications (1)

Publication Number Publication Date
GB516349A true GB516349A (en) 1940-01-01

Family

ID=10108452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1820538A Expired GB516349A (en) 1938-06-20 1938-06-20 Improvements in, and connected with, switch control mechanism, particularly suitable for electric cookers

Country Status (1)

Country Link
GB (1) GB516349A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505808A (en) * 1945-04-18 1950-05-02 Ohio Crankshaft Co Power unit sequence control
US2599171A (en) * 1949-06-24 1952-06-03 Wiegand Co Edwin L Electric heating switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505808A (en) * 1945-04-18 1950-05-02 Ohio Crankshaft Co Power unit sequence control
US2599171A (en) * 1949-06-24 1952-06-03 Wiegand Co Edwin L Electric heating switch

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