GB190706846A - Improvements in or relating to Magic Lanterns and similar Projecting Apparatus particularly applicable for Advertising and like purposes. - Google Patents
Improvements in or relating to Magic Lanterns and similar Projecting Apparatus particularly applicable for Advertising and like purposes.Info
- Publication number
- GB190706846A GB190706846A GB190706846DA GB190706846A GB 190706846 A GB190706846 A GB 190706846A GB 190706846D A GB190706846D A GB 190706846DA GB 190706846 A GB190706846 A GB 190706846A
- Authority
- GB
- United Kingdom
- Prior art keywords
- advertising
- purposes
- wheel
- chains
- relating
- 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
Landscapes
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
6846. Grassmann, J. C. March 21. Optical projection apparatus.-In automatic projection apparatus for advertising and like purposes, the plate holders, Fig. 2, are freely suspended from two lateral endless chains f. The chains are intermittently moved over guide-rollers by means of a wheel k having teeth upon part of its periphery and gearing with a wheel k<1> upon one of the guiderollers. As each holder is brought in front of the condenser, it is pressed against a frame g by means of a spring h. Each of the cross-rods carrying the holders serves as a hinge bolt for the two parts q, n of a bolder, which are closed by means of a catch s against the action of a spring o. The wheel k is driven through ratchet gear. The chains may be arranged to pass up and down over a number of rollers placed closely together.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190706846T | 1907-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190706846A true GB190706846A (en) | 1908-03-21 |
Family
ID=32548259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190706846D Expired GB190706846A (en) | 1907-03-21 | 1907-03-21 | Improvements in or relating to Magic Lanterns and similar Projecting Apparatus particularly applicable for Advertising and like purposes. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190706846A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2605674A (en) * | 1946-09-24 | 1952-08-05 | Bouma Wikke | Toy motion-picture projector |
US4257694A (en) * | 1978-02-03 | 1981-03-24 | Soding Tv Gmbh & Co. Bild & Ton International | Projection system |
-
1907
- 1907-03-21 GB GB190706846D patent/GB190706846A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2605674A (en) * | 1946-09-24 | 1952-08-05 | Bouma Wikke | Toy motion-picture projector |
US4257694A (en) * | 1978-02-03 | 1981-03-24 | Soding Tv Gmbh & Co. Bild & Ton International | Projection system |
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