GB496873A - Improvements in or relating to optical projection apparatus - Google Patents

Improvements in or relating to optical projection apparatus

Info

Publication number
GB496873A
GB496873A GB964437A GB964437A GB496873A GB 496873 A GB496873 A GB 496873A GB 964437 A GB964437 A GB 964437A GB 964437 A GB964437 A GB 964437A GB 496873 A GB496873 A GB 496873A
Authority
GB
United Kingdom
Prior art keywords
web
relating
printing wheel
projection apparatus
optical projection
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
GB964437A
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.)
TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Trans Lux Daylight Picture Screen Corp
Original Assignee
TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Trans Lux Daylight Picture Screen Corp
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 TRANS-LUX DAYLIGHT PICTURE SCREEN Corp, Trans Lux Daylight Picture Screen Corp filed Critical TRANS-LUX DAYLIGHT PICTURE SCREEN Corp
Priority to GB964437A priority Critical patent/GB496873A/en
Publication of GB496873A publication Critical patent/GB496873A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/134—Projectors combined with typing apparatus or with printing apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

496,873. Typewriters &c. STEVENS, A. H. (Trans-Lux Daylight Picture Screen Corporation) April 5, 1937, No. 9644. [Class 100 (iv)] [Also in Group XX] Line-spacing mechanism.-In apparatus for projecting on to a screen an image of information printed on a paper web W, a printing wheel 17, is moved towards and across the web to print successive lines of information, and the web is fed upwardly through the projection field by feed rollers 25 each time a pawl holding the supply spool is momentarily liberated upon the return of the printing wheel to its initial position.
GB964437A 1937-04-05 1937-04-05 Improvements in or relating to optical projection apparatus Expired GB496873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB964437A GB496873A (en) 1937-04-05 1937-04-05 Improvements in or relating to optical projection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB964437A GB496873A (en) 1937-04-05 1937-04-05 Improvements in or relating to optical projection apparatus

Publications (1)

Publication Number Publication Date
GB496873A true GB496873A (en) 1938-12-05

Family

ID=9875976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB964437A Expired GB496873A (en) 1937-04-05 1937-04-05 Improvements in or relating to optical projection apparatus

Country Status (1)

Country Link
GB (1) GB496873A (en)

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