GB1305439A - - Google Patents

Info

Publication number
GB1305439A
GB1305439A GB1908870A GB1908870A GB1305439A GB 1305439 A GB1305439 A GB 1305439A GB 1908870 A GB1908870 A GB 1908870A GB 1908870 A GB1908870 A GB 1908870A GB 1305439 A GB1305439 A GB 1305439A
Authority
GB
United Kingdom
Prior art keywords
cam
rings
drum
shaft
gear
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
GB1908870A
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 filed Critical
Publication of GB1305439A publication Critical patent/GB1305439A/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
    • H01H43/121—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 drum
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2102—Adjustable
    • Y10T74/2105—Memory devices

Abstract

1305439 Cams W E GILSON 21 April 1970 [9 May 1969] 19088/70 Heading F2K [Also in Division H1] A rotary cam drum 12 of a programme controller comprises a plurality of coaxially arranged cam rings 20 each of which has a radially extending flange 20B from which material has been removed to form a recess 22, and an axially extending central boss 20A which serves to space apart the cam surfaces 22, 20B of adjacent cam rings, the cam rings 20 being removably secured together to allow a programme to be altered by replacing a ring or rings by substitutes. As shown, the cam rings have inwardly projecting arms 20C by which they are keyed to a drum 18 rotatably mounted on a shaft 32 which is releasably secured at one end only to a wall 28, release of the shaft and cam drum 12 being effected by unscrewing the shaft 32 by means of handle 56. The cams are retained on the drum between end plates 52, 54, 52 being releasable by bolts 50. The drum 18 carries a gear 48 driven via an idler gear 44 from the output gear of an electric motor. The cam rings 20 may be a friction fit on drum 18 and have angular divisions on the bosses 20A and radial flanges 20B to aid in removing material to form recesses 22. Each cam surface 20B, 22 cooperates with a cam follower actuating a push button switch. In Fig. 5 not shown, each cam ring has internal teeth which mesh with the elongated teeth of a gear shaft on which the rings are suspended, the cam followers bearing on the upper surfaces of the cam rings to retain them in position on the gear shaft. This arrangement ensures that even though the cam surfaces may differ in length somewhat the programme is not impaired.
GB1908870A 1969-05-09 1970-04-21 Expired GB1305439A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82341169A 1969-05-09 1969-05-09

Publications (1)

Publication Number Publication Date
GB1305439A true GB1305439A (en) 1973-01-31

Family

ID=25238697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1908870A Expired GB1305439A (en) 1969-05-09 1970-04-21

Country Status (4)

Country Link
US (1) US3580105A (en)
DE (2) DE2022631A1 (en)
FR (1) FR2047517A5 (en)
GB (1) GB1305439A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004497A (en) * 1974-05-22 1977-01-25 Scholin Industries, Inc. Automatic systems programmer
DE2528652C3 (en) * 1975-06-27 1982-03-04 Johann Vollenbroich Elektro- Und Apparatebau Kg, 4358 Haltern Rear derailleur
DE19810176B4 (en) * 1998-03-10 2008-01-03 Valeo Klimasysteme Gmbh Camshaft gearbox with drive shaft

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1940598A (en) * 1932-05-28 1933-12-19 Fidelity Machine Co Trick wheel for knitting machines
US2643533A (en) * 1949-10-25 1953-06-30 Hemphill Co Pattern mechanism
DE1287726B (en) * 1960-06-08 1969-01-23
US3177310A (en) * 1962-03-26 1965-04-06 Hurletron Inc Switch programming device
US3481219A (en) * 1968-04-22 1969-12-02 Leesona Corp Breakaway cam

Also Published As

Publication number Publication date
US3580105A (en) 1971-05-25
FR2047517A5 (en) 1971-03-12
DE7017343U (en) 1971-12-30
DE2022631A1 (en) 1970-12-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees