GB788487A - Improvements in carriage retarding mechanism for typewriters or like machines - Google Patents
Improvements in carriage retarding mechanism for typewriters or like machinesInfo
- Publication number
- GB788487A GB788487A GB4132/56A GB413256A GB788487A GB 788487 A GB788487 A GB 788487A GB 4132/56 A GB4132/56 A GB 4132/56A GB 413256 A GB413256 A GB 413256A GB 788487 A GB788487 A GB 788487A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carriage
- block
- typewriters
- engagement
- exhaust passage
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
-
- 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
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/04—Sound-deadening or shock-absorbing devices or measures therein
- B41J19/10—Dash-pots
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/76—Dynamic electron-multiplier tubes, e.g. Farnsworth multiplier tube, multipactor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
- Actuator (AREA)
Abstract
788,487. Typewriters &c. ROYAL McBEE CORPORATION. Feb. 9. 1956 [March 4, 1955], No. 4132/56. Class 100(4) A typewriter carriage retarding device comprises a dash pot 7 on a carriage rail 2 and a resilient block 28 on the typewriter frame 1, the dash pot having an extending stem 17 with an exhaust passage 24 communicating with a cross-shaped recess 30 which forms a valve connection with the block 28 such that the restrictive effect of the engagement of the block 28 over the recess 30 is dependent upon the speed of the carriage at the engagement. After impact the restriction of the exhaust passage is progressively decreased. The device may be used at the end of a carriage return movement or in short and long tabulating runs so that the carriage is properly positioned for typing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US492220A US2808144A (en) | 1955-03-04 | 1955-03-04 | Carriage retarding mechanism for typewriters or like machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB788487A true GB788487A (en) | 1958-01-02 |
Family
ID=27534450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4132/56A Expired GB788487A (en) | 1955-03-04 | 1956-02-09 | Improvements in carriage retarding mechanism for typewriters or like machines |
Country Status (6)
Country | Link |
---|---|
US (1) | US2808144A (en) |
CH (1) | CH332160A (en) |
DE (1) | DE1044115B (en) |
FR (1) | FR1146849A (en) |
GB (1) | GB788487A (en) |
NL (1) | NL88968C (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3291909A (en) * | 1962-10-25 | 1966-12-13 | Scm Corp | Drum printer |
US3915280A (en) * | 1966-09-21 | 1975-10-28 | Frederick P Willcox | Printer format controls |
US3739899A (en) * | 1970-08-03 | 1973-06-19 | Ibm | Carriage indexing mechanism |
US3750795A (en) * | 1970-11-02 | 1973-08-07 | Burroughs Corp | Constant force spring carrier return mechanism |
JPS5311883B2 (en) * | 1973-05-14 | 1978-04-25 | ||
US3944029A (en) * | 1974-11-22 | 1976-03-16 | Centronics Data Computer Corporation | Damper for printing and the like |
DE2610771C3 (en) * | 1976-03-15 | 1979-10-11 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Drive device for writing carriages in inkjet writing devices |
US4359289A (en) * | 1979-11-20 | 1982-11-16 | Printronix, Inc. | Counterbalanced bidirectional shuttle drive having linear motor |
TW571940U (en) | 2003-06-03 | 2004-01-11 | Benq Corp | Officejet |
US9802431B2 (en) * | 2016-01-13 | 2017-10-31 | Océ Holding B.V. | Impact damping device for print-head assembly and printing apparatus incorporating same |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1233532A (en) * | 1915-02-06 | 1917-07-17 | Elmer B Wilbur | Feeding mechanism for type-writing machines. |
DE414741C (en) * | 1922-12-10 | 1925-06-08 | Fred P Gorin | Accounting machine with tab facility |
US1757134A (en) * | 1928-07-23 | 1930-05-06 | Burroughs Adding Machine Co | Accounting machine |
US1992940A (en) * | 1931-10-23 | 1935-03-05 | Underwood Elliott Fisher Co | Shock absorbing mechanism for typewriters |
US2283565A (en) * | 1940-04-30 | 1942-05-19 | Royal Typewriter Co Inc | Typewriting machine |
-
0
- NL NL88968D patent/NL88968C/xx active
-
1955
- 1955-03-04 US US492220A patent/US2808144A/en not_active Expired - Lifetime
-
1956
- 1956-02-09 GB GB4132/56A patent/GB788487A/en not_active Expired
- 1956-02-21 DE DER18351A patent/DE1044115B/en active Pending
- 1956-02-27 FR FR1146849D patent/FR1146849A/en not_active Expired
- 1956-03-02 CH CH332160D patent/CH332160A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR1146849A (en) | 1957-11-15 |
CH332160A (en) | 1958-08-31 |
NL88968C (en) | |
DE1044115B (en) | 1958-11-20 |
US2808144A (en) | 1957-10-01 |
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