GB696329A - Improvements in or relating to rotary duplicating machines - Google Patents
Improvements in or relating to rotary duplicating machinesInfo
- Publication number
- GB696329A GB696329A GB14226/51A GB1422651A GB696329A GB 696329 A GB696329 A GB 696329A GB 14226/51 A GB14226/51 A GB 14226/51A GB 1422651 A GB1422651 A GB 1422651A GB 696329 A GB696329 A GB 696329A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ritzerfeld
- supplied
- voltage
- motor
- variable resistor
- 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
- B41L5/00—Autographic registers or like manifolding apparatus using movable strips or webs
- B41L5/04—Autographic registers or like manifolding apparatus using movable strips or webs with mechanisms for feeding webs or for arranging web feed; with web storage arrangements
- B41L5/06—Autographic registers or like manifolding apparatus using movable strips or webs with mechanisms for feeding webs or for arranging web feed; with web storage arrangements by means of rollers, wheels, or chains, e.g. with pins transversely
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
696,329. Control of D.C. motors. RITZERFELD, W. and RITZERFELD, G. June 15, 1951 [Jan. 22, 1951], No. 14226/51. Class 38 (iii) [Also in Group XVI] The speed of a D.C. motor 29 driving a printing roller (see Group XVI) is progressively varied by a variable resistor, the adjusting arm of which is driven from the roller through reduction worm gearing. The field current of the motor is supplied from an A.C. source through a selenium rectifier 31, a smoothing condenser being provided. The armature current is supplied through a thyratron valve 32 which passes a part of each positive half-cycle determined by the phase relations of the voltage in the triggering grid 34. The phase relationship of this voltage is governed by the variable resistor 33 alteration of which causes the leading current in the condenser C to have a greater or lesser effect.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE696329X | 1951-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB696329A true GB696329A (en) | 1953-08-26 |
Family
ID=6607676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14226/51A Expired GB696329A (en) | 1951-01-22 | 1951-06-15 | Improvements in or relating to rotary duplicating machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB696329A (en) |
-
1951
- 1951-06-15 GB GB14226/51A patent/GB696329A/en not_active Expired
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