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
Application number
Inventor
Jacob Christian Grassmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190706846A publication Critical patent/GB190706846A/en
Expired legal-status Critical Current

Links

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.
GB190706846D 1907-03-21 1907-03-21 Improvements in or relating to Magic Lanterns and similar Projecting Apparatus particularly applicable for Advertising and like purposes. Expired GB190706846A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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