GB464093A - Improvements in and relating to driving arrangements for cinematograph apparatus - Google Patents

Improvements in and relating to driving arrangements for cinematograph apparatus

Info

Publication number
GB464093A
GB464093A GB34877/36A GB3487736A GB464093A GB 464093 A GB464093 A GB 464093A GB 34877/36 A GB34877/36 A GB 34877/36A GB 3487736 A GB3487736 A GB 3487736A GB 464093 A GB464093 A GB 464093A
Authority
GB
United Kingdom
Prior art keywords
motor
disc
knob
bush
spindle
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
GB34877/36A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB464093A publication Critical patent/GB464093A/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
    • G03B19/00—Cameras
    • G03B19/18—Motion-picture cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Toys (AREA)

Abstract

464,093. Kinematograph apparatus. SIEMENS & HALSKE AKT.-GES. Dec. 18, 1936, No. 34877. Convention date, Dec. 19, 1935. [Class 97 (i)] Means enabling a motor-driven apparatus to be driven by hand is coupled to the driving mechanism in such manner that it becomes automatically disengaged when the motor is in operation ; the disengagement may be effected by a centrifugal governor controlling the motor speed. As shown, a bush 4 fixed to the spindle 2 of a motor 1 carries weighted spring blades 6 which are also secured to a bush 5 slidable on the spindle but not rotatable thereon. A helical spring 13 between the bushes opposes the outward movement of the weights 7. A disc 8 with a conical edge is secured to the bush 5, and, when the motor is inoperative, engages a conical disc 12 on a spindle carrying a knob 11. Hand operation of the mechanism is then possible by rotation of the knob 11, but, when the motor is operative, the disc 8 is drawn out of engagement with the disc 12, and rotation of the knob 11 by the motor is avoided. A brake member on the end of a screw 9 rotatable by a knob 10 may engage the disc 8 to limit the motor speed. The discs 8, 12 may be of materials having high coefficients of friction ; one of them may be of metal and be flanged at its edge.
GB34877/36A 1935-12-19 1936-12-18 Improvements in and relating to driving arrangements for cinematograph apparatus Expired GB464093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE464093X 1935-12-19

Publications (1)

Publication Number Publication Date
GB464093A true GB464093A (en) 1937-04-12

Family

ID=6540215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34877/36A Expired GB464093A (en) 1935-12-19 1936-12-18 Improvements in and relating to driving arrangements for cinematograph apparatus

Country Status (1)

Country Link
GB (1) GB464093A (en)

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