GB1142936A - Escapement for the stepping motion of the carriage of a typewriter - Google Patents
Escapement for the stepping motion of the carriage of a typewriterInfo
- Publication number
- GB1142936A GB1142936A GB1730366A GB1730366A GB1142936A GB 1142936 A GB1142936 A GB 1142936A GB 1730366 A GB1730366 A GB 1730366A GB 1730366 A GB1730366 A GB 1730366A GB 1142936 A GB1142936 A GB 1142936A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pawl
- projection
- letter
- ratchet wheel
- release
- 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
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/34—Escapement-feed character-spacing mechanisms
- B41J19/40—Escapements having a single pawl or like detent
-
- 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
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/34—Escapement-feed character-spacing mechanisms
- B41J19/58—Differential or variable-spacing arrangements
Landscapes
- Common Mechanisms (AREA)
- Transmission Devices (AREA)
Abstract
1,142,936. Typewriters. OLYMPIA WERKE A.G. 20 April, 1966 [23 April, 1965], No. 17303/66. Heading B6F. Escapement mechanism.-A single pawl escapement mechanism which may be fitted to existing typewriters with fast and loose pawls mounted on a rocker; comprises a pawl. 5 pivoted at 6<SP>1</SP> on a lever 6 and biased by a spring 7 so it can pivot away from and slide in a tripping (leftward) direction relative to a ratchet wheel 4; and an actuator 10-operated by a release 12-having a projection 10<SP>1</SP> for engaging the upper surface of the end 511 of the pawl 5. The projection 10<SP>1</SP> and the end 5<SP>11</SP> have abutting surfaces so that should the release held in 12 be downward position the rotation of the ratchet wheel 4 in letter-space direction is limited to a partial e.g. half a letter-space, see Fig. 3, not shown. For a normal letter the pawl 5 is pivoted counter-clockwise by the actuator 10 which returns under spring action 11 when the release 12 returns to normal position. The tooth 5<SP>1</SP> of the pawl 5 engages the next tooth of the ratchet wheel 4 which moves the pawl to the right until arrested by the adjustable buffer 9. Silent-carriage-return mechanism.-A friction spring 13 disengages the pawl 5 by engagement with projection 5111 during carriage-return movement effected manually or by power.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO0010816 | 1965-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1142936A true GB1142936A (en) | 1969-02-12 |
Family
ID=7352110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1730366A Expired GB1142936A (en) | 1965-04-23 | 1966-04-20 | Escapement for the stepping motion of the carriage of a typewriter |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH452563A (en) |
DE (1) | DE1436697A1 (en) |
GB (1) | GB1142936A (en) |
NL (1) | NL6605447A (en) |
SE (1) | SE324791B (en) |
-
1965
- 1965-04-23 DE DE19651436697 patent/DE1436697A1/en active Pending
-
1966
- 1966-02-09 CH CH182266A patent/CH452563A/en unknown
- 1966-04-20 GB GB1730366A patent/GB1142936A/en not_active Expired
- 1966-04-22 NL NL6605447A patent/NL6605447A/xx unknown
- 1966-04-22 SE SE5513/66A patent/SE324791B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SE324791B (en) | 1970-06-15 |
DE1436697A1 (en) | 1969-07-24 |
CH452563A (en) | 1968-03-15 |
NL6605447A (en) | 1966-10-24 |
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