GB1205328A - Improvements in or relating to rotational speed detection devices - Google Patents

Improvements in or relating to rotational speed detection devices

Info

Publication number
GB1205328A
GB1205328A GB6696/68A GB669668A GB1205328A GB 1205328 A GB1205328 A GB 1205328A GB 6696/68 A GB6696/68 A GB 6696/68A GB 669668 A GB669668 A GB 669668A GB 1205328 A GB1205328 A GB 1205328A
Authority
GB
United Kingdom
Prior art keywords
shaft
drum
lever
magnet
speed
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
GB6696/68A
Inventor
Kaname Doi
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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
Priority to FR139379A priority Critical patent/FR1555961A/fr
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to GB6696/68A priority patent/GB1205328A/en
Priority to US705053A priority patent/US3527905A/en
Publication of GB1205328A publication Critical patent/GB1205328A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
    • H01H3/56—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using electromagnetic clutch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/06—Switches operated by change of speed
    • H01H35/10—Centrifugal switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/06—Switches operated by change of speed
    • H01H35/12—Switches operated by change of speed operated by reversal of direction of movement

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

1,205,328. Inductive-drag switches. SUMITOMO ELECTRIC INDUSTRIES Ltd. 10 Feb., 1968, No. 6696/68. Heading H1N. A speed responsive switch has a magnet 36 on the driving shaft 5 and a conducting non- magnetizable drum 7 between the magnet 36 and a ferromagnetic cylinder 3 mounted in the housing 2. The drum 7 has end pieces 6, 6<SP>1</SP> mounted on bearings 8, 8<SP>1</SP> on the shaft 5 and an actuating member 35<SP>1</SP> attracted to end piece 6<SP>1</SP> projects through slots 12<SP>1</SP>, 13<SP>1</SP> which limit the rotational movement of the drum 7. The ends 12, 13 of the member 35 are engaged by a spring biased lever 15 so that if the drum 5 is rotated in either direction one of the ends will rotate the lever 15, anticlockwise as shown in Fig. 8B, to operate a contact device 19. The distances between the lever pivot 14 and ends 12, 13 in relation to the axis of the shaft 5 can be fixed to provide contact operation at the same shaft speed in both directions or at different speeds. The operating speed can be adjusted by coarse and fine screws 28, 27 acting on lever biasing tension spring 25 or by rotation of a hanger 33 to which an opposing tension spring 32 is coupled. The contact unit 19 may also be adjusted on its mounting bracket 44. The shaft 5 rotates in oil impregnated bearings 4, 41 in casing parts 2, 1, the latter having a dust tight cover 16. The contact unit 19 has changeover contacts.
GB6696/68A 1968-02-09 1968-02-10 Improvements in or relating to rotational speed detection devices Expired GB1205328A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR139379A FR1555961A (en) 1968-02-09 1968-02-09
GB6696/68A GB1205328A (en) 1968-02-09 1968-02-10 Improvements in or relating to rotational speed detection devices
US705053A US3527905A (en) 1968-02-09 1968-02-13 Induction switch with adjustment means for independently selecting the clockwise and counterclockwise angular velocities of actuation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR139379 1968-02-09
GB6696/68A GB1205328A (en) 1968-02-09 1968-02-10 Improvements in or relating to rotational speed detection devices
US70505368A 1968-02-13 1968-02-13

Publications (1)

Publication Number Publication Date
GB1205328A true GB1205328A (en) 1970-09-16

Family

ID=27244785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6696/68A Expired GB1205328A (en) 1968-02-09 1968-02-10 Improvements in or relating to rotational speed detection devices

Country Status (3)

Country Link
US (1) US3527905A (en)
FR (1) FR1555961A (en)
GB (1) GB1205328A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2313761A1 (en) * 1975-06-05 1976-12-31 Gen Electric Canada SPEED SENSITIVE SWITCHING DEVICE

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470012A (en) * 1982-09-29 1984-09-04 Coleco Industries, Inc. Apparatus for generating rate signals
US4502870A (en) * 1983-03-21 1985-03-05 Combustion Engineering, Inc. Method and apparatus for controlling tumbling hammer rapper for electrostatic precipitator
US4499409A (en) * 1984-01-31 1985-02-12 Clark Equipment Company Plugging defeat system for electric motors
KR102054115B1 (en) * 2019-08-09 2019-12-09 조시온 Airway intubation assembly for check of patient breathing
IT202000008038A1 (en) * 2020-04-16 2021-10-16 Label Spa DEVELOPMENT AND METHOD TO DETECT THE DIRECTION OF ROTATION OF A ROTATING SHAFT

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880288A (en) * 1955-05-09 1959-03-31 Gaylord Prod Inc Speedometer switch
FR1160963A (en) * 1956-11-29 1958-08-18 Electrical circuit breaking device
US3021402A (en) * 1959-11-30 1962-02-13 Warre Robert W La Speed responsive switch
US3091680A (en) * 1960-10-28 1963-05-28 Cook Electric Co Ice detector
US3180163A (en) * 1962-10-15 1965-04-27 Inta Roto Machine Company Inc Variable speed transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2313761A1 (en) * 1975-06-05 1976-12-31 Gen Electric Canada SPEED SENSITIVE SWITCHING DEVICE

Also Published As

Publication number Publication date
FR1555961A (en) 1969-01-31
US3527905A (en) 1970-09-08

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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