GB350138A - Improved free-wheel coupling - Google Patents

Improved free-wheel coupling

Info

Publication number
GB350138A
GB350138A GB1194230A GB1194230A GB350138A GB 350138 A GB350138 A GB 350138A GB 1194230 A GB1194230 A GB 1194230A GB 1194230 A GB1194230 A GB 1194230A GB 350138 A GB350138 A GB 350138A
Authority
GB
United Kingdom
Prior art keywords
pawl
flywheel
driven
driving shaft
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
GB1194230A
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.)
GEORGE FREDERICK CLARK
HAROLD HERBERT VERNON STANLEY
Parlophone Records Ltd
Original Assignee
GEORGE FREDERICK CLARK
HAROLD HERBERT VERNON STANLEY
Gramophone 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 GEORGE FREDERICK CLARK, HAROLD HERBERT VERNON STANLEY, Gramophone Co Ltd filed Critical GEORGE FREDERICK CLARK
Priority to GB1194230A priority Critical patent/GB350138A/en
Publication of GB350138A publication Critical patent/GB350138A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/43—Driving mechanisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gear Transmission (AREA)

Abstract

350,138. Kinematograph apparatus. GRAMOPHONE CO., Ltd. and STANLEY, H. H. V., 79, North Hyde Road, both in Hayes, and CLARK, G. F., 39, Brandville Road, West Drayton, both in Middlesex. April 15, 1930, No. 11942. [Class 97 (i).] The film-winding spool is driven through a freewheel clutch 14, 19 of special construction, allowing overrunning in both directions when the drive ceases and in some cases also a bidirectional drive. The clutch comprises a two-armed pivoted pawl 17 moved into or out of engagement with a driven ratchet ring 19 by the limited relative movement,. under the influence of inertia, of a flywheel 14 freely mounted on the driving shaft 1. The pawl is pivoted on the flywheel and deceleration thereof relative to the driver causes the tail 15 of the pawl to contact with a projection 12 on a boss 11 fixed to the driving shaft 1, to engage the pawl. The pawl is biassed towards the disengaged position, by a spring 16 anchored to an arm 13 on the boss 11 and there may be a stop pin 22 on the flywheel to ensure a slight tension of the spring when in the disengaged position. Duplicate opposite pawls may be provided for a bidirectional drive. There may also be a friction drag tending to cause the flywheel to lay behind the driving shaft. The clutch which is driven by a shaft 1 is mounted in bearings 2, 4 on the side of the casing of the film spool, to theshaft 7 of which, the driven shaft 3 is connected by worm gearing 5.
GB1194230A 1930-04-15 1930-04-15 Improved free-wheel coupling Expired GB350138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1194230A GB350138A (en) 1930-04-15 1930-04-15 Improved free-wheel coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1194230A GB350138A (en) 1930-04-15 1930-04-15 Improved free-wheel coupling

Publications (1)

Publication Number Publication Date
GB350138A true GB350138A (en) 1931-06-11

Family

ID=9995468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1194230A Expired GB350138A (en) 1930-04-15 1930-04-15 Improved free-wheel coupling

Country Status (1)

Country Link
GB (1) GB350138A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012054984A1 (en) * 2010-10-27 2012-05-03 James Kwok Torque reversal and clutch gear coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012054984A1 (en) * 2010-10-27 2012-05-03 James Kwok Torque reversal and clutch gear coupling

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