GB190627529A - An Improved Manufacture of Half Tone or like Printing Blocks - Google Patents

An Improved Manufacture of Half Tone or like Printing Blocks

Info

Publication number
GB190627529A
GB190627529A GB190627529DA GB190627529A GB 190627529 A GB190627529 A GB 190627529A GB 190627529D A GB190627529D A GB 190627529DA GB 190627529 A GB190627529 A GB 190627529A
Authority
GB
United Kingdom
Prior art keywords
plate
etched
face
ready
percha
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
William Bell
Harry Bryce Bell
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 GB190627529A publication Critical patent/GB190627529A/en
Expired legal-status Critical Current

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  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

27,529. Bell, W., and Bell, H. B. Dec. 3. Underlays and make-ready arrangements.-Halftone printing-blocks are constructed in such a manner that overlays or make-ready appliances are rendered practically unnecessary. In one method the face and back of the plate have the print burnt in, that on the back being a reverse of that on the face. The back is deeply etched and the plate is subjected to pressure beneath a sheet of lead, leather, gutta-percha, &c. The plate is pressed either when hot or cold. The face of the plate is thus rendered partly in relief and it is then etched ready for printing. By another method, a second plate is deeply etched and coated with an adhesive mixture consisting of Stockholm tar, resin, and gutta-percha. The half-tone plate, with the print burnt in, is then placed face upwards upon the etched plate and subjected to pressure as before. The two plates adhere together and the upper face is then etched. A sheet of bichromated gelatin which has been printed and developed may be used instead of the etched metal plate.
GB190627529D 1906-12-03 1906-12-03 An Improved Manufacture of Half Tone or like Printing Blocks Expired GB190627529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190627529T 1906-12-03

Publications (1)

Publication Number Publication Date
GB190627529A true GB190627529A (en) 1907-09-05

Family

ID=32257601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190627529D Expired GB190627529A (en) 1906-12-03 1906-12-03 An Improved Manufacture of Half Tone or like Printing Blocks

Country Status (1)

Country Link
GB (1) GB190627529A (en)

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