GB189723495A - An Improved Automatic Slide Carrier for Optical Lanterns. - Google Patents

An Improved Automatic Slide Carrier for Optical Lanterns.

Info

Publication number
GB189723495A
GB189723495A GB189723495DA GB189723495A GB 189723495 A GB189723495 A GB 189723495A GB 189723495D A GB189723495D A GB 189723495DA GB 189723495 A GB189723495 A GB 189723495A
Authority
GB
United Kingdom
Prior art keywords
slide
lanterns
slide carrier
improved automatic
automatic slide
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
Lewis Ernest Hopkins
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 GB189723495A publication Critical patent/GB189723495A/en
Expired legal-status Critical Current

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  • Optical Elements Other Than Lenses (AREA)

Abstract

23,495. Hopkins, L. E. Oct. 12. Magic - lanterns.-Relates to the slide-carriers. The slides are fed into a shoot 8, 9, 10, pressing back a spring bar 12, until free to be moved forward into contact with the last slide inserted, which is being exhibited by the light passing through the apertures 3. The slide which has just been displayed is pressed against a cushioned stop 7 ; when this slide is withdrawn, the spring bar 12 is thrown forwards by the spring 5, or by the finger pressing on the extension 15, and the new slide is brought before the condenser ; another can then be inserted, and so on for the whole series.
GB189723495D 1897-10-12 1897-10-12 An Improved Automatic Slide Carrier for Optical Lanterns. Expired GB189723495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189723495T 1897-10-12

Publications (1)

Publication Number Publication Date
GB189723495A true GB189723495A (en) 1898-08-27

Family

ID=32137315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189723495D Expired GB189723495A (en) 1897-10-12 1897-10-12 An Improved Automatic Slide Carrier for Optical Lanterns.

Country Status (1)

Country Link
GB (1) GB189723495A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973689A (en) * 1957-10-23 1961-03-07 Ralph E Bailey Apparatus for projecting slides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973689A (en) * 1957-10-23 1961-03-07 Ralph E Bailey Apparatus for projecting slides

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