GB829002A - Improvements in and relating to thermo-copying machines - Google Patents
Improvements in and relating to thermo-copying machinesInfo
- Publication number
- GB829002A GB829002A GB36715/55A GB3671555A GB829002A GB 829002 A GB829002 A GB 829002A GB 36715/55 A GB36715/55 A GB 36715/55A GB 3671555 A GB3671555 A GB 3671555A GB 829002 A GB829002 A GB 829002A
- Authority
- GB
- United Kingdom
- Prior art keywords
- belt
- motor
- clevis
- spring
- microswitch
- 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
-
- 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
- G03B27/00—Photographic printing apparatus
- G03B27/02—Exposure apparatus for contact printing
- G03B27/14—Details
- G03B27/30—Details adapted to be combined with processing apparatus
- G03B27/306—Heat development
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Fixing For Electrophotography (AREA)
Abstract
829,002. Belt drives. MINNESOTA MINING & MANUFACTURING CO. Dec. 21, 1955 [March 28, 1955], No. 36715/55. Class 80 (1). [Also in Group XX] The belt 10 is maintained in its path around the rollers 11, 12, 13, 15 by mounting the roller 15 in a clevis 18 which is pivotable on the pin 22, and attaching one side of the clevis to a spring 25 and a cord 26 of a constant torque motor 27. The motor is controlled by a microswitch 29 at one side of the belt, and when the motor is not energized the spring tilts the clevis against the stop 28 and the belt is caused to move sideways against the tilt until the edge of the belt operates the microswitch 29. This energizes the motor to tilt the clevis in the opposite direction against the action of the spring 25 until it reaches the stop 28<SP>1</SP>, and the motor remains energized until the belt moves away from the microswitch 29, when the sequence is repeated. Thus, the belt is given a side-to-side weaving motion. Further microswitches (not shown) are provided on each side of the belt to stop the machine should the belt get out of control. Tension in the belt is maintained by the spring 23. Specifications 673,244 and 829,001 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US829002XA | 1955-03-28 | 1955-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB829002A true GB829002A (en) | 1960-02-24 |
Family
ID=22174173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36715/55A Expired GB829002A (en) | 1955-03-28 | 1955-12-21 | Improvements in and relating to thermo-copying machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB829002A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3301797A1 (en) * | 1982-01-18 | 1983-07-28 | Ricoh Co., Ltd., Tokyo | RIBBON CORRECTION SYSTEM |
| DE3408496A1 (en) * | 1983-03-11 | 1984-10-11 | Toyo Machinery Co., Ltd., Osaka | FEED AND CONTROL DEVICE FOR A MOVING TRAIN |
-
1955
- 1955-12-21 GB GB36715/55A patent/GB829002A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3301797A1 (en) * | 1982-01-18 | 1983-07-28 | Ricoh Co., Ltd., Tokyo | RIBBON CORRECTION SYSTEM |
| DE3408496A1 (en) * | 1983-03-11 | 1984-10-11 | Toyo Machinery Co., Ltd., Osaka | FEED AND CONTROL DEVICE FOR A MOVING TRAIN |
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