GB795907A - A shutter device for cinematographic projectors - Google Patents

A shutter device for cinematographic projectors

Info

Publication number
GB795907A
GB795907A GB12823/56A GB1282356A GB795907A GB 795907 A GB795907 A GB 795907A GB 12823/56 A GB12823/56 A GB 12823/56A GB 1282356 A GB1282356 A GB 1282356A GB 795907 A GB795907 A GB 795907A
Authority
GB
United Kingdom
Prior art keywords
movements
april
pulley
produces
feed
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
GB12823/56A
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.)
EMEL ETS
Original Assignee
EMEL ETS
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 EMEL ETS filed Critical EMEL ETS
Publication of GB795907A publication Critical patent/GB795907A/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane

Landscapes

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

Abstract

795,907. Kinematograph apparatus. ETABLISSEMENTS EMEL. April 26, 1956 [April 28, 1955], No. 12823/56. Class 97(1) A projector shutter is formed integrally with the cams which provide the feed and disengaging movements of the claw. In the form shown the metal shutter disc 1 is combined with a moulded plastic member which carries the cam 4 which produces the feed movements and a face cam track 6, having its centre on the axis of rotation, which produces the disengaging movements. The plastic material is moulded through holes 13', 13<SP>2</SP> and also forms a pulley 8. The whole has a central bore 12 for the spindle and is secured thereon by a screw and washer accommodated in the recess shown in the face of the pulley. The plastic material is preferably superpolyamide.
GB12823/56A 1955-04-28 1956-04-26 A shutter device for cinematographic projectors Expired GB795907A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR795907X 1955-04-28

Publications (1)

Publication Number Publication Date
GB795907A true GB795907A (en) 1958-06-04

Family

ID=9234875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12823/56A Expired GB795907A (en) 1955-04-28 1956-04-26 A shutter device for cinematographic projectors

Country Status (1)

Country Link
GB (1) GB795907A (en)

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