GB599250A - Improvements in delay action control devices incorporating electric switches - Google Patents

Improvements in delay action control devices incorporating electric switches

Info

Publication number
GB599250A
GB599250A GB1506243A GB1506243A GB599250A GB 599250 A GB599250 A GB 599250A GB 1506243 A GB1506243 A GB 1506243A GB 1506243 A GB1506243 A GB 1506243A GB 599250 A GB599250 A GB 599250A
Authority
GB
United Kingdom
Prior art keywords
shaft
magnet
disc
stop
energisation
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
GB1506243A
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US557036A priority Critical patent/US2450323A/en
Publication of GB599250A publication Critical patent/GB599250A/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
    • H01H43/12—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 a single cycle of operation
    • H01H43/125—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 a single cycle of operation using a cam
    • H01H43/127—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 a single cycle of operation using a cam with provision for adjustment of the intervals by means carried by the cam

Landscapes

  • Replacement Of Web Rolls (AREA)

Abstract

599,250. Electromagnetic switches. WILLIAMSON, S. Sept. 14, 1943, No. 15062. [Class 38(v)] [Also in Group XX] In an arrangement which may be used to stop the action of a cinematograph camera shortly after a gun has ceased firing or for controlling the operation of a guillotine for separating photographic prints shortly after the web of paper has reached a certain point the de-energisation of a magnet 7 causes a circuit 11, 12 to be opened after a delay determined by a wheel 14 which has been clutched to a driving mechanism by the de-energisation. In the form shown, closure of a master switch 6 energises the magnet 7 which attracts its armature 8 to close at 11, 12 the circuit to a motor 1 driving a shaft 4 and to withdraw the disc 14 so that a slot 16 is free from the shaft 4 and a spring 15 rotates the disc to a starting position in which a stop 17 engages an adjustable stop 18. On opening the switch 6, the magnet 7 is deenergised and the periphery of the disc brought into engagement with the rotating shaft 4. Then after a time interval the notch 16 reaches the shaft, the armature tilts still further and the contacts 11, 12 open.
GB1506243A 1943-09-14 1943-09-14 Improvements in delay action control devices incorporating electric switches Expired GB599250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US557036A US2450323A (en) 1943-09-14 1944-10-03 Delay action control switch

Publications (1)

Publication Number Publication Date
GB599250A true GB599250A (en) 1948-03-09

Family

ID=1731219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1506243A Expired GB599250A (en) 1943-09-14 1943-09-14 Improvements in delay action control devices incorporating electric switches

Country Status (1)

Country Link
GB (1) GB599250A (en)

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