GB229243A - - Google Patents

Info

Publication number
GB229243A
GB229243A GB14436/24A GB1443624A GB229243A GB 229243 A GB229243 A GB 229243A GB 14436/24 A GB14436/24 A GB 14436/24A GB 1443624 A GB1443624 A GB 1443624A GB 229243 A GB229243 A GB 229243A
Authority
GB
United Kingdom
Prior art keywords
film
slide
guide
chamber
springs
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
GB14436/24A
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.)
ERNEMANN - WERKE AG
Original Assignee
ERNEMANN - WERKE 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 ERNEMANN - WERKE AG filed Critical ERNEMANN - WERKE AG
Publication of GB229243A publication Critical patent/GB229243A/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
    • G03B1/00—Film strip handling
    • G03B1/18—Moving film strip by means which act on the film between the ends thereof
    • G03B1/20—Acting means
    • G03B1/22—Claws or pins engaging holes in the film

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Advancing Webs (AREA)

Abstract

229,243. Ernemann-Werke Akt.-Ges. Feb. 15,1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Optical-projection apparatus. - Apparatus for projecting individual pictures on film bands has the film storage chamber b, the film guide c, the guide for the film-feeding slide h, and the film re-winding chamber d all bent out of a single sheet of metal e. In the construction described the slide h carries two film-gripping teeth which are mounted on the free ends of flat spring i, and have their lower edges at right angles to the path of the film and their upper edges bevelled off. The slide is depressed by a knob t against tension of springs k which press it against the film guide c and retract it after the film guide has been fed. Teeth mounted on the ends of flat springs q secured to a plate o having a window p, retain the film during the return of slide h. A steel tongue l attached to the lower end of slide h conveys the film into chamber d. The stroke of slide, h can be altered by means of an adjustable stop n.
GB14436/24A 1924-02-15 1924-06-14 Expired GB229243A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE229243T 1924-02-15

Publications (1)

Publication Number Publication Date
GB229243A true GB229243A (en) 1925-03-26

Family

ID=31893558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14436/24A Expired GB229243A (en) 1924-02-15 1924-06-14

Country Status (1)

Country Link
GB (1) GB229243A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587123A (en) * 1948-06-29 1952-02-26 Dunning Color Corp Film advancing mechanism in slide film projectors
US3124039A (en) * 1964-03-10 anderson
US3751160A (en) * 1968-03-25 1973-08-07 Reibel R General arrangement for projector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124039A (en) * 1964-03-10 anderson
US2587123A (en) * 1948-06-29 1952-02-26 Dunning Color Corp Film advancing mechanism in slide film projectors
US3751160A (en) * 1968-03-25 1973-08-07 Reibel R General arrangement for projector

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