GB961002A - Improvements in slide projectors - Google Patents

Improvements in slide projectors

Info

Publication number
GB961002A
GB961002A GB1128563A GB1128563A GB961002A GB 961002 A GB961002 A GB 961002A GB 1128563 A GB1128563 A GB 1128563A GB 1128563 A GB1128563 A GB 1128563A GB 961002 A GB961002 A GB 961002A
Authority
GB
United Kingdom
Prior art keywords
wheel
contact
driving
slide
braun
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
GB1128563A
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.)
Carl Braun KG
Willy Braun
Original Assignee
Carl Braun KG
Willy Braun
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 Carl Braun KG, Willy Braun filed Critical Carl Braun KG
Publication of GB961002A publication Critical patent/GB961002A/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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • 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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/02—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor
    • G03B23/04—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor with linear movement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

961,002. Slide projectors. C. BRAUN, and W. BRAUN, [trading as CARL BRAUN CAMERAWERK]. March 21, 1963 [Jan. 4, 1963], No. 11285/63. Heading G2J. A slide projector has a magazine 3 movable in one direction by an electric motor 2 when a rotary transmission member 14 mounted on carrier 15 is moved into direct frictional contact with driving wheel 16 or in the opposite direction when the driving contact is made through an intermediate roller 28. Solenoid 18 is energises momentarily so that armature 19 operates through rod 20 and lever 21 to rotate carrier 15 about pivot 17 against the tension of spring 37 to allow sheel 14 to contact driving wheel 16. Alternatively, for reverse drive, solenoid 35 is used with armature 34, rod 33 and lever 32 pivoted at 22 to rotate carrier arm 29 anti-clockwise through spring 31 and move intermediate roller 28 pivotally mounted at 39 into contact with wheels 14 and 16. Levers 21, 32 engage in turn, and are retained by, catch 25 so that driving contact for reverse or forward motions is maintained. Wheel 14 then drives, through gear train 10, 11, 12, 13, the gear wheel 9 on which as eccentrically mounted push rod 7 pivoted at 8 and driving plunger 6 which in turn drives the slide plunger, not shown. Cam 38 on wheel 9 engages a toothed rack to advance or reverse magazine 3 according to the direction of rotation. After one revolution of wheel 9, end 41 of plunger 6 engages arm 26 and moves catch 25 to free lever 21 or 32 and so interrupt the driving contact of wheel 16. Fan 36 is driven by motor 2. Slide 3 may be moved manually by means of control knob 4.
GB1128563A 1963-01-04 1963-03-21 Improvements in slide projectors Expired GB961002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1963B0070218 DE1247690B (en) 1963-01-04 1963-01-04 Drive for a slide projector

Publications (1)

Publication Number Publication Date
GB961002A true GB961002A (en) 1964-06-17

Family

ID=6976589

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1128563A Expired GB961002A (en) 1963-01-04 1963-03-21 Improvements in slide projectors

Country Status (2)

Country Link
DE (1) DE1247690B (en)
GB (1) GB961002A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104216B (en) * 1959-12-05 1961-04-06 Zeiss Ikon Ag Device for step-by-step advancement of a slide magazine
DE1124259B (en) * 1960-09-23 1962-02-22 Leitz Ernst Gmbh Automatic picture changing device for projectors

Also Published As

Publication number Publication date
DE1247690B (en) 1967-08-17

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