GB1196104A - Timing Mechanisms particularly for Controlling Electric Switches - Google Patents

Timing Mechanisms particularly for Controlling Electric Switches

Info

Publication number
GB1196104A
GB1196104A GB602768A GB602768A GB1196104A GB 1196104 A GB1196104 A GB 1196104A GB 602768 A GB602768 A GB 602768A GB 602768 A GB602768 A GB 602768A GB 1196104 A GB1196104 A GB 1196104A
Authority
GB
United Kingdom
Prior art keywords
carriage
shaft
motor
electric heating
electric
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
GB602768A
Inventor
David Gibbons Smith
Helmut Ludwig Hagenbuch
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.)
Moffats Ltd
Original Assignee
Moffats 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 Moffats Ltd filed Critical Moffats Ltd
Priority to GB602768A priority Critical patent/GB1196104A/en
Publication of GB1196104A publication Critical patent/GB1196104A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H01H43/103—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after one preselected time interval
    • H01H43/104—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after one preselected time interval by mechanical coupling device
    • 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

  • Constitution Of High-Frequency Heating (AREA)

Abstract

1,196,104. Electric switches &c. MOFFATS Ltd. 6 Feb., 1969 [7 Feb., 1968], No. 6027/68. Heading H1N. A tuning mechanism, particularly for controlling electric switches, comprises a carriage 35, slidably mounted on a shaft 25, and movable along the latter against the bias of a spring 30 by a threaded shaft 23, engaged in a notch 37 in a flange 33 on the carriage 35 and coupled at one end to an electric driving motor 16, and its other end passing through a slot 24 in a wall 12 of a base 10 supporting the mechanism, the shafts 23, 25 being parallel when the carriage 35 is driven, and the shaft 23 being disengageable by movement of said other end thereof in the slot 24 against the action of a spring 40. The illustrated apparatus is for the control of the electric heating of an oven to clean it by pyrolysis. The closing of a switch (not shown) to initiate the electric heating starts the motor 16 to drive the carriage 35, and when a tab 45 on the latter engages the actuating element 44 to open a switch 43 the electric heating is terminated and the motor 16 is stopped. The threaded rod 23 may then be lifted out of the notch 37 by rotating a bell-crank 51 to allow the carriage 35 to be reset to its starting position by the spring 30. During the electric heating operation the motor 16 also drives via gearing a shaft 20 carrying a cam 58 controlling a changeover switch 56 whereby two heating elements of differing outputs are energized alternately.
GB602768A 1968-02-07 1968-02-07 Timing Mechanisms particularly for Controlling Electric Switches Expired GB1196104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB602768A GB1196104A (en) 1968-02-07 1968-02-07 Timing Mechanisms particularly for Controlling Electric Switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB602768A GB1196104A (en) 1968-02-07 1968-02-07 Timing Mechanisms particularly for Controlling Electric Switches

Publications (1)

Publication Number Publication Date
GB1196104A true GB1196104A (en) 1970-06-24

Family

ID=9807082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB602768A Expired GB1196104A (en) 1968-02-07 1968-02-07 Timing Mechanisms particularly for Controlling Electric Switches

Country Status (1)

Country Link
GB (1) GB1196104A (en)

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed