GB683132A - Improvements in and relating to hectographic duplicators - Google Patents
Improvements in and relating to hectographic duplicatorsInfo
- Publication number
- GB683132A GB683132A GB25119/49A GB2511949A GB683132A GB 683132 A GB683132 A GB 683132A GB 25119/49 A GB25119/49 A GB 25119/49A GB 2511949 A GB2511949 A GB 2511949A GB 683132 A GB683132 A GB 683132A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- original
- slot
- roller
- axle
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
- B41L11/00—Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
683,132. Copying documents; printing surfaces. FLACH, W. Sept. 30, 1949 [Oct. 1, 1948], No. 25119/49. Class 100 (ii). In a hectographic duplicating apparatus in which the drum accommodates simultaneously a plurality of mirror script originals, at least one of the originals has both ends connected to means disposed inside the drum by which it can be displaced from inside the drum for part printing such as a single line or a series of lines therefrom. The drum 1 has an original 3 with its total text, such as main headings, lying on the outside of the drum and secured by a spring actuated clamping ledge 4, and a second original 8 with a part 13 of its text, such as single lines, on the outside of the drum, the original 8 being secured at each end to a roller 14, 15 and passing over a bridge block 10 freely fitting into a slot 9 at a suitable distance on the drum from the clamp 4. Guides 16 are provided either side of the block 10 which is tapered as shown and, if the whole drum is required for a single original, can be turned so that it completely fills the slot 9. Each roller 14, 15 comprises a roller 17 with slot 24 in which the end of original 8 is secured by small spring pressed pins 22 on an axle 20, a slot 21 being provided for positioning the end, and the axle 20 being then turned by a knob 26 till the pins 22 abut the edge of the slot 24, a stop 27 being provided at this position of the axle 20. The rollers 14, 15 are operated from driving wheels (not shown), extending beyond the periphery of the drum which engage gear wheels 18 so that either roller can be turned to move the original 8 across the slot 9 to present a fresh surface 13 between each copying operation. Several bridges 10 may be provided over the circumference of the drum, each having rollers 14, 15 for an original 8. In place of the clamping ledge 4, the original 3 may be clamped by a roller 17 similarly to the original 8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE683132X | 1948-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB683132A true GB683132A (en) | 1952-11-26 |
Family
ID=6597312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25119/49A Expired GB683132A (en) | 1948-10-01 | 1949-09-30 | Improvements in and relating to hectographic duplicators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB683132A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5355795A (en) * | 1993-08-26 | 1994-10-18 | Presstek, Inc. | Automatic plate-loading cylinder for use with plate-imaging systems |
US5657692A (en) * | 1995-05-04 | 1997-08-19 | Presstek, Inc. | Removable supply and uptake assemblies for lithographic plate material |
-
1949
- 1949-09-30 GB GB25119/49A patent/GB683132A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5355795A (en) * | 1993-08-26 | 1994-10-18 | Presstek, Inc. | Automatic plate-loading cylinder for use with plate-imaging systems |
US5657692A (en) * | 1995-05-04 | 1997-08-19 | Presstek, Inc. | Removable supply and uptake assemblies for lithographic plate material |
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