US2838155A - Arrangement for operating type-bars - Google Patents

Arrangement for operating type-bars Download PDF

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Publication number
US2838155A
US2838155A US362029A US36202953A US2838155A US 2838155 A US2838155 A US 2838155A US 362029 A US362029 A US 362029A US 36202953 A US36202953 A US 36202953A US 2838155 A US2838155 A US 2838155A
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US
United States
Prior art keywords
bar
type
key
pivot
bars
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 - Lifetime
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US362029A
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English (en)
Inventor
Segui Jean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STENOTYPE GRANDJEAN
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STENOTYPE GRANDJEAN
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by STENOTYPE GRANDJEAN filed Critical STENOTYPE GRANDJEAN
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Publication of US2838155A publication Critical patent/US2838155A/en
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    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/26—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for stenographic writing

Definitions

  • This invention relates to improvements to typewriters and more particularly to shorthand typewriters, its object being to produce an arrangement for operating the typebars by effecting a permanent contact between the key-bar and the corresponding type-bar, the bearing of the said key-bar against an elastic stop, and the automatic taking up of the possible play of the key-bar and the type-bar on their respective pivots, which are parallel. in this way one of the causes of the noise due to the touch of the type-bars is eliminated and the wear and tear of the parts concerned lessened.
  • the key-bar comprises a bearing surface. substantially radial, constantly resting on which is a corresponding cam-shaped surface of the type-bar, in such a way that an oscillation of the key-oar about its pivot induces a corresponding oscillation of the type-bar about its pivot and its touch on the platen.
  • a single spring pin mounted on a pivot parallel to those of the hey-bar and the type-bar, acts by each of its ends on one of the radial surfaces of one of these organs in such a Way as to push the type-bar against the key-bar and to push the latter against its elastic stop.
  • the machine comprises a frame 1 on which is mounted, pivoting about the pivot 2, a key-bar 3, and about a pivot d, the type-bar 5; it includes in addition, through the instrumentality of the arms 6, an elastic stop '7, and, in the bearings 8, the trunnions 9 of the platen w.
  • the key-bar comprises at its end near the pivot 2 and opposite to that of the keys ill. a radial surface 12 constantly in contact with the corresponding cam-shaped surface 13 of the type-bar 5.
  • a single pivot 17 fixed to the frame may serve for all the spring pins of all the key-bars of the machine, thus considerably facilitating the mounting.
  • a typewriting or shorthand typewriting machine comprising a platen, at least one key-bar rotatable about a pivot, and at least one type-bar rotatable about a pivot and adapted for cooperation with the said key-bar, in which the two said pivots are parallel to one another and to the platen, the hey-bar comprisin a bearing surface extending substantially in a plane passing through the axes of said two pivots, and the type-bar comprising a corresponding surface constantly resting upon the hearing surface of the key-bar, an oscillation or the hey-oar about its pivot inducing thereby a corresponding oscillation of the type-bar about its pivot, and causing said type-bar to touch said platen, said typewriting machine further comprising an elastic stop for the key-bar and a hairpin spring mounted on a pivot pin parallel to the pivots of said type-bar and key-bar and disposed between these pivots but at a lower level, the ends of said hairpin spring bearing freely against registering surfaces of said key-bar and type-bar

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  • Printers Characterized By Their Purpose (AREA)
US362029A 1952-08-12 1953-06-16 Arrangement for operating type-bars Expired - Lifetime US2838155A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2838155X 1952-08-12

Publications (1)

Publication Number Publication Date
US2838155A true US2838155A (en) 1958-06-10

Family

ID=9689191

Family Applications (1)

Application Number Title Priority Date Filing Date
US362029A Expired - Lifetime US2838155A (en) 1952-08-12 1953-06-16 Arrangement for operating type-bars

Country Status (2)

Country Link
US (1) US2838155A (fr)
FR (1) FR1061417A (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US450324A (en) * 1891-04-14 George w
US452825A (en) * 1891-05-26 Walter j
US860643A (en) * 1906-11-13 1907-07-23 Thomas L Dennis Type-writing machine.
US1011924A (en) * 1911-12-19 Union Typewriter Co Type-writing machine.
US2140869A (en) * 1937-02-04 1938-12-20 Robert T Wright Clutch
US2545375A (en) * 1946-08-15 1951-03-13 Nunn George William Type lever arrangement for stenographic machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US450324A (en) * 1891-04-14 George w
US452825A (en) * 1891-05-26 Walter j
US1011924A (en) * 1911-12-19 Union Typewriter Co Type-writing machine.
US860643A (en) * 1906-11-13 1907-07-23 Thomas L Dennis Type-writing machine.
US2140869A (en) * 1937-02-04 1938-12-20 Robert T Wright Clutch
US2545375A (en) * 1946-08-15 1951-03-13 Nunn George William Type lever arrangement for stenographic machines

Also Published As

Publication number Publication date
FR1061417A (fr) 1954-04-12

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