GB472869A - Improvements in and relating to duplicating machines - Google Patents
Improvements in and relating to duplicating machinesInfo
- Publication number
- GB472869A GB472869A GB26648/36A GB2664836A GB472869A GB 472869 A GB472869 A GB 472869A GB 26648/36 A GB26648/36 A GB 26648/36A GB 2664836 A GB2664836 A GB 2664836A GB 472869 A GB472869 A GB 472869A
- Authority
- GB
- United Kingdom
- Prior art keywords
- machine
- pump
- roller
- pipe
- operating
- 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
- B41L11/08—Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies with rotary cylinders carrying the masters
Landscapes
- Fixing For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
<PICT:0472869/III/1> <PICT:0472869/III/2> In a mirror-script duplicating-machine, the sheets are damped by means of a roller 235, Fig. 7, running in contact with a felt block 262 in a receptacle 251 which is supplied with an adjustable volume of liquid by means of a pump 277, Fig. 20. The receptacle is suspended from a supply-pipe 254 and is pressed by springs 258. The block 262 abuts on another block 261 and is engaged by a pressure-bar 264 which is adjustable to control the flow. The roller 235 is geared to the drum 54 of the machine. The pump is arranged in a tank 271 and is connected by pipes 282, 255 to the pipe 254, the pipe 282 being provided with an overflow chamber 283. The piston 275 of the pump works in a cylinder 274 provided with a ball-valve 280, and formed with apertures 279. The piston is operated by a spring 277 and is raised by means of a bell-crank 286, 288 co-operating with a cam 69 on the drum-shaft 53 of the machine. The volume delivered at each stroke is adjusted by means p of an eccentric strap 293 co-operating with an extension of the arm 286. The eccentric is secured to a shaft 291 provided with a knob which can be pulled outwards and turned to adjust the eccentric, a pin on the knob co-operating with one of a number of apertures 296 to retain the parts in adjusted position. To change the blocks 261, 262 after the machine has been standing, the pump is operated manually by means of a slide 298 having a roller 302 engaging the arm 288.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US472869XA | 1935-10-14 | 1935-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB472869A true GB472869A (en) | 1937-10-01 |
Family
ID=21948108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26648/36A Expired GB472869A (en) | 1935-10-14 | 1936-10-01 | Improvements in and relating to duplicating machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB472869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1128445B (en) * | 1957-09-10 | 1962-04-26 | Rena Bueromasch Fabrik G M B H | Rotary Multiplier |
-
1936
- 1936-10-01 GB GB26648/36A patent/GB472869A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1128445B (en) * | 1957-09-10 | 1962-04-26 | Rena Bueromasch Fabrik G M B H | Rotary Multiplier |
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