GB737669A - Improvements in or relating to clutch mechanisms - Google Patents

Improvements in or relating to clutch mechanisms

Info

Publication number
GB737669A
GB737669A GB2164752A GB2164752A GB737669A GB 737669 A GB737669 A GB 737669A GB 2164752 A GB2164752 A GB 2164752A GB 2164752 A GB2164752 A GB 2164752A GB 737669 A GB737669 A GB 737669A
Authority
GB
United Kingdom
Prior art keywords
lever
spring
projection
driven member
race
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
GB2164752A
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.)
INSTAPRINT CAMERA Co Ltd
Original Assignee
INSTAPRINT CAMERA Co 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 INSTAPRINT CAMERA Co Ltd filed Critical INSTAPRINT CAMERA Co Ltd
Priority to GB2164752A priority Critical patent/GB737669A/en
Publication of GB737669A publication Critical patent/GB737669A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/02—Friction clutches disengaged by the contact of a part mounted on the clutch with a stationarily-mounted member
    • F16D13/025—Friction clutches disengaged by the contact of a part mounted on the clutch with a stationarily-mounted member with a helical band or equivalent member with two or more turns embracing a drum or the like

Abstract

737,669. Friction clutches. INSTAPRINT CAMERA CO., Ltd., and PEACOCK, W. F. Aug. 28, 1953 [Aug. 28, 1952], No. 21647/52. Class 80 (2). A clutch between the driving motor and the cylindrical shutter 19 of a photographic timerecording camera for use in timing races comprises a helical coil spring 4 embracing cylindrical parts of the driving and driven members, one end 5 of the spring being anchored to the driven member by a screw 6 while the other end has an out-turned projection 7 co-operating with the inturned end 8 of one arm of a lever 22, the other arm of which forms the armature of an electromagnet 25. The magnet 25 is energized automatically by closing of a switch at the start of a race, so as to move the end 8 of the lever, away from the projection 7 and allow the spring 4 to contract, while after the end of the race the lever is moved in the opposite direction, to allow the end 8 of the lever to engage the projection 7 and thus expand the spring 4, by manual pressure on a spring- loaded plunger 27 co-operating with a projection 26 on the lever 22, the latter being then retained frictionally by a blade spring 30. A disc 31 secured to the driven member has a peripheral recess 33 terminating in a radial slot 34, so that the end 8 of the lever cannot be moved inwardly until it is in register with the recess 33, the driven member being finally locked against rotation when the end 8 enters the slot 34.
GB2164752A 1952-08-28 1952-08-28 Improvements in or relating to clutch mechanisms Expired GB737669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2164752A GB737669A (en) 1952-08-28 1952-08-28 Improvements in or relating to clutch mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2164752A GB737669A (en) 1952-08-28 1952-08-28 Improvements in or relating to clutch mechanisms

Publications (1)

Publication Number Publication Date
GB737669A true GB737669A (en) 1955-09-28

Family

ID=10166448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2164752A Expired GB737669A (en) 1952-08-28 1952-08-28 Improvements in or relating to clutch mechanisms

Country Status (1)

Country Link
GB (1) GB737669A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896756A (en) * 1956-10-10 1959-07-28 Zeiss Ikon Dresden Veb Coupling arrangement especially for use in cinematographic devices or the like
US3034624A (en) * 1959-07-13 1962-05-15 Gen Electric Actuating device for spring clutch mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896756A (en) * 1956-10-10 1959-07-28 Zeiss Ikon Dresden Veb Coupling arrangement especially for use in cinematographic devices or the like
US3034624A (en) * 1959-07-13 1962-05-15 Gen Electric Actuating device for spring clutch mechanism

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