GB412493A - Improvements in or relating to line-space ratchet wheel clutches for typewriters andsimilar machines - Google Patents
Improvements in or relating to line-space ratchet wheel clutches for typewriters andsimilar machinesInfo
- Publication number
- GB412493A GB412493A GB34060/33A GB3406033A GB412493A GB 412493 A GB412493 A GB 412493A GB 34060/33 A GB34060/33 A GB 34060/33A GB 3406033 A GB3406033 A GB 3406033A GB 412493 A GB412493 A GB 412493A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platen
- discs
- projections
- pressed
- line
- 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
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangementsĀ of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/24—Detents, brakes, or couplings for feed rollers or platens
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Handling Of Sheets (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
Abstract
412,493. Typewriters &c. AKT.-GES. VORM. SEIDEL & NAUMANN, 19, Hamburgerstrasse, Dresden, Germany. Dec. 4, 1933, No. 34060. Convention date, Dec. 8, 1932. [Class 100 (iv).] Platen-roller couplings.-A coupling for the line-space wheel and platen of a typewriter or like machine, comprises a laminated clutch compressed by clamping-levers actuated by a spring-pressed rockable member. A sleeve 4, Fig. 1 and 3, which acts as the mounting axle of the platen, is screwed by means of a flange 5 to the end wall 2 of the platen 1. Mounted slidably in the sleeve 4 is a bush 23 into which is screwed a spindle 6 carrying a knob 7. A pivoted pressure-member 10, mounted on a pin 8 in the bush 23, passes through slots 22, 9 in the bush 23 and sleeve 4 respectively, and is pressed outwards by a weak spring 11. Coupling-discs 13 are engaged to the sleeve 4 by projections 13<a>, and discs 14 are engaged to the line-space wheel 16 by projections 14<a>. The discs are pressed together by means of two levers, each comprising arms 17, 18, 19. In each lever the arm 18 passes through the slot 22 and the arm 19 is provided with two laterally displaced projections 20, 21. The pressure of the member 10 causes the levers to rock about the projections 20 so that the projections 21-compress the discs 13, 14, thereby clutching the line-space wheel to the platen. When the knob 7 is pressed inwards, shoulders 23<a> on the bush 23, together with the elastic action of the discs, rock the lever inwards, the platen being cut away at 24 to permit this movement. The shaft 6 is held in the inner de-clutched position by means of a doublearmed spring-pressed lever 26, 28 engaging an annular groove 27 in the shaft 6. Specification 217,233, [Class 100 (iv)], is referred to.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE412493X | 1932-12-08 | ||
DE764973X | 1932-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB412493A true GB412493A (en) | 1934-06-28 |
Family
ID=25905875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34060/33A Expired GB412493A (en) | 1932-12-08 | 1933-12-04 | Improvements in or relating to line-space ratchet wheel clutches for typewriters andsimilar machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB412493A (en) |
-
1933
- 1933-12-04 GB GB34060/33A patent/GB412493A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1388766A (en) | Arrangement of two fluid pressure operable clutches | |
GB1362500A (en) | Transmissions | |
US1869085A (en) | Fluid pressure control device | |
GB674506A (en) | Inertia operated control device | |
GB412493A (en) | Improvements in or relating to line-space ratchet wheel clutches for typewriters andsimilar machines | |
GB531046A (en) | Improvements in or relating to clutch operating mechanism | |
GB380999A (en) | Couplings, more particularly for use with feed mechanism for machine tools | |
GB217233A (en) | Clutching device for the cylinder of a typewriting or like machine | |
US2117520A (en) | Operating mechanism for clutches | |
GB693225A (en) | Improvements in or relating to clutches | |
GB145840A (en) | Improvements in or relating to platen-release devices for typewriters | |
GB525647A (en) | Improvements in or relating to control apparatus for a clutch | |
GB1028017A (en) | Improvements in and relating to clutches | |
GB751416A (en) | Improvements in or relating to cutting machines | |
GB427649A (en) | Improvements in friction clutches | |
GB544973A (en) | Improvements in and relating to machines for making wired box parts | |
GB615765A (en) | Double clutch | |
GB241409A (en) | Improvements in or relating to friction clutches | |
GB632309A (en) | Readily disconnectible clutch for transmitting rotary movement | |
GB500625A (en) | An improved friction clutch | |
GB679247A (en) | Improvements in a device for uncoupling a shaft | |
GB601903A (en) | Improvements relating to friction clutch discs | |
GB464887A (en) | Improvements in or relating to carriage returning mechanism for typewriters | |
GB524853A (en) | Plate clutches | |
GB173484A (en) | Improvements relating to the coupling of the line space ratchet wheel of a typewriting machine |