GB1377582A - Variable speed steppwise power feed device - Google Patents

Variable speed steppwise power feed device

Info

Publication number
GB1377582A
GB1377582A GB80072A GB80072A GB1377582A GB 1377582 A GB1377582 A GB 1377582A GB 80072 A GB80072 A GB 80072A GB 80072 A GB80072 A GB 80072A GB 1377582 A GB1377582 A GB 1377582A
Authority
GB
United Kingdom
Prior art keywords
wheel
ratchet
cam
pawl
pin
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
GB80072A
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.)
Thales Avionics SAS
Original Assignee
Crouzet SA
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
Priority to FR7101879A priority Critical patent/FR2132494B1/fr
Application filed by Crouzet SA filed Critical Crouzet SA
Publication of GB1377582A publication Critical patent/GB1377582A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00Time 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
    • H01H43/10Time 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
    • H01H43/101Driving mechanisms
    • H01H43/102Driving mechanisms using a pawl and ratchet wheel mechanism
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00Time 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
    • H01H43/02Details
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/15Intermittent grip type mechanical movement
    • Y10T74/1503Rotary to intermittent unidirectional motion
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/1987Rotary bodies
    • Y10T74/19879Geneva

Abstract

1377582 Variable-ratio ratchet gear CROUZET 7 Jan 1972 [19 Jan 1971] 800/72 Heading F2D A variable step ratchet drive, e.g. of a process cam 4 in a programmer for an automatic washing machine, comprises an output ratchet wheel 5 secured to the cam 4, and stepped by a pawl 8, spring-loaded on to the ratchet 5 and oscillated by an eccentric 8c on an input shaft 9, the number of steps imparted to the ratchet being controlled by a cam 6, which allows engagement between the pawl 8 and ratchet 5 only when a gap 6a registers with the tail of the pawl, the cam 6 being driven by a star-wheel 1, which, under control of the process cam 4, is caused to assume three different radial positions with respect to a pin-wheel 2 driven at onefourth the speed of the input 9, and carrying two sets of four pairs of pins 2a, 2b at different radii and staggered 45 degrees apart. With the arm 3b on the cam step N1 (as shown) the star-wheel 1 is clear of the pin-wheel 2 and stationary, the pawl 8 being allowed continuous engagement with the ratchet-wheel 5 which is thereby stepped four steps for each revolution of the pin-wheel 2, and hence each four revolutions of the eccentric shaft 9. On the cam step N2, the eight-toothed star-wheel 1 engages the outer four pairs of pins 2a and thus makes one complete revolution for each revolution of the pin-wheel 2, during which the ratchet 5 is advanced one step. On the cam step N3 the star-wheel 1 engages both sets of pins 2a, 2b, thus making two revolutions and producing two ratchet steps for each revolution of the pinwheel 2.
GB80072A 1971-01-19 1972-01-07 Variable speed steppwise power feed device Expired GB1377582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7101879A FR2132494B1 (en) 1971-01-19 1971-01-19

Publications (1)

Publication Number Publication Date
GB1377582A true GB1377582A (en) 1974-12-18

Family

ID=9070606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB80072A Expired GB1377582A (en) 1971-01-19 1972-01-07 Variable speed steppwise power feed device

Country Status (5)

Country Link
US (1) US3760644A (en)
DE (1) DE2200012C3 (en)
FR (1) FR2132494B1 (en)
GB (1) GB1377582A (en)
IT (1) IT944600B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES426521A2 (en) * 1974-05-21 1977-06-16 Copreci Ind Sci Stepping mechanism for actuating a programming control for a machine
DE2806258C2 (en) * 1978-02-15 1987-01-22 Eaton Gmbh, 7778 Markdorf, De
FR2630557B1 (en) * 1988-04-25 1992-02-14 Crouzet Sa PROGRAMMER FOR ELECTRODOMESTIC MACHINES
US7577298B2 (en) * 2003-06-20 2009-08-18 Siemens Medical Solutions Usa, Inc. Method and system for response image feature collection and candidate summit, surface, and core estimation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2106042A (en) * 1932-03-08 1938-01-18 Gen Electric Coin controlled time switch
US2128858A (en) * 1935-01-25 1938-08-30 Gen Electric Coin time switch
US2680164A (en) * 1952-03-19 1954-06-01 Gen Electric Contact speed control in springdriven step type switches
DE916740C (en) * 1952-12-20 1954-08-16 Peltzer & Ehlers Gear for converting continuous rotation into those with pauses
US3648529A (en) * 1970-01-29 1972-03-14 Mallory & Co Inc P R Intermittent motion transmission

Also Published As

Publication number Publication date
US3760644A (en) 1973-09-25
DE2200012B2 (en) 1973-02-08
DE2200012C3 (en) 1975-02-20
FR2132494A1 (en) 1972-11-24
FR2132494B1 (en) 1973-12-28
IT944600B (en) 1973-04-20
DE2200012A1 (en) 1972-08-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee