GB961002A - Improvements in slide projectors - Google Patents
Improvements in slide projectorsInfo
- 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
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.
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)
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 |
-
1963
- 1963-01-04 DE DE1963B0070218 patent/DE1247690B/en active Pending
- 1963-03-21 GB GB1128563A patent/GB961002A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1247690B (en) | 1967-08-17 |
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