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GB1466083A - Cam-actuated timer switch - Google Patents

Cam-actuated timer switch

Info

Publication number
GB1466083A
GB1466083A GB1431874A GB1431874A GB1466083A GB 1466083 A GB1466083 A GB 1466083A GB 1431874 A GB1431874 A GB 1431874A GB 1431874 A GB1431874 A GB 1431874A GB 1466083 A GB1466083 A GB 1466083A
Authority
GB
United Kingdom
Prior art keywords
cam
contact
enclosure
blades
output shaft
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
GB1431874A
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.)
MALLORY TIMERS Ltd
Original Assignee
MALLORY TIMERS 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 MALLORY TIMERS Ltd filed Critical MALLORY TIMERS Ltd
Publication of GB1466083A publication Critical patent/GB1466083A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • 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
    • 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

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Electromechanical Clocks (AREA)

Abstract

1466083 Time switches MALLORY TIMERS Ltd 1 April 1974 [30 March 1973] 14318/74 Heading H1N A timer comprises a synchronous motor 10 with an output shaft 38, a cam member 40 carried on said output shaft 38, switching means comprising contact-carrying blades 70 responsive to said cam 40 and an enclosure 30 substantially enveloping said cam 40 and said blades 70, which enclosure is substantially a parallelepiped having a ratio of thickness to perimeter of from 1/40 to 1/20, said thickness being taken substantially parallel to said output shaft 38 and said perimeter being measured around the outside of said enclosure in a plane perpendicular to said output shaft 38. As shown a second cam 50 is carried on a shaft 49 parallel to shaft 38 to actuate a shorter set of contact blades 72 situated on the opposite side of centre line A-B. Each cam member 40, 50 two cam tracks 42, 44 and 52, 54, operating its associated contacts on the Arzberger principle, and respective gears 48, 57 form ribs separating the cam tracks. The long and short contact sets may be mutually interchanged (Fig. 5, not shown). A simpler arrangement has only one cam member (32, Figs. 2 and 3, not shown) with two tracks acting on two contact blades which may be mounted on alternative sides of the enclosure. Contact-spacing sliders, such as 84, having lugs (88, 90, Fig. 6, not shown) extending between the contact blades, may be freely translatable along guides (86) on the inside of the housing 58.
GB1431874A 1973-03-30 1974-04-01 Cam-actuated timer switch Expired GB1466083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00346313A US3814874A (en) 1973-03-30 1973-03-30 Cam-actuated timer switch

Publications (1)

Publication Number Publication Date
GB1466083A true GB1466083A (en) 1977-03-02

Family

ID=23358835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1431874A Expired GB1466083A (en) 1973-03-30 1974-04-01 Cam-actuated timer switch

Country Status (10)

Country Link
US (1) US3814874A (en)
JP (1) JPS5052573A (en)
AU (1) AU6718274A (en)
BR (1) BR7402508D0 (en)
CA (1) CA1001700A (en)
DE (1) DE2415375A1 (en)
ES (2) ES424790A1 (en)
FR (1) FR2223818B1 (en)
GB (1) GB1466083A (en)
IT (1) IT1009409B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001528A (en) * 1975-03-21 1977-01-04 P. R. Mallory & Co., Inc. Timing mechanism
JPS5381381U (en) * 1976-12-08 1978-07-06
US4130746A (en) * 1977-04-11 1978-12-19 Whirlpool Corporation Snap-action cam for timer switch
US4123915A (en) * 1977-05-16 1978-11-07 Amf Incorporated Defrost timer having selectable defrost time
US4297547A (en) * 1978-12-14 1981-10-27 Emhart Industries, Inc. Miniature timing mechanism
CA1176673A (en) * 1981-06-01 1984-10-23 Donald S. Cushing Electromechanical timer with improved short interval accuracy
US4525608A (en) * 1982-12-03 1985-06-25 General Electric Company Timer mechanism with improved interval accuracy
US4493955A (en) * 1983-04-18 1985-01-15 Colman Oem, Inc. Control mechanism for an electric motor assembly
DE8711023U1 (en) * 1987-08-13 1987-09-24 Grässlin KG, 7742 St Georgen Spacer for an electrical contact spring set
US5834718A (en) * 1997-03-03 1998-11-10 Emerson Electric Co. Appliance timer having a switching mechanism for high-current carrying circuit blades and associated method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877317A (en) * 1957-02-05 1959-03-10 Gen Electric Switching mechanism for timer
US3319198A (en) * 1965-06-21 1967-05-09 Johnson Matthey & Mallory Ltd Miniature telephone interrupter switch
GB1126414A (en) * 1966-03-10 1968-09-05 Horstmann Gear Co Ltd Improvements in or relating to electric circuit controllers incorporating time-switches
JPS5143935Y2 (en) * 1971-03-02 1976-10-25
US3727015A (en) * 1971-04-12 1973-04-10 Mallory & Co Inc P R Cam operated program timer assembly with replaceable leaf spring contact structure
JPS5223807Y2 (en) * 1971-04-30 1977-05-31

Also Published As

Publication number Publication date
ES424790A1 (en) 1976-09-01
JPS5052573A (en) 1975-05-10
AU6718274A (en) 1975-10-02
CA1001700A (en) 1976-12-14
US3814874A (en) 1974-06-04
ES446884A1 (en) 1977-06-01
DE2415375A1 (en) 1974-10-24
FR2223818B1 (en) 1977-09-30
IT1009409B (en) 1976-12-10
BR7402508D0 (en) 1974-11-19
FR2223818A1 (en) 1974-10-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee