US2082370A - Shorthand writing machine - Google Patents

Shorthand writing machine Download PDF

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Publication number
US2082370A
US2082370A US43263A US4326335A US2082370A US 2082370 A US2082370 A US 2082370A US 43263 A US43263 A US 43263A US 4326335 A US4326335 A US 4326335A US 2082370 A US2082370 A US 2082370A
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United States
Prior art keywords
keys
key
bars
pressure
printing
Prior art date
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Expired - Lifetime
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US43263A
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English (en)
Inventor
Vonck Gerhard Hendrik Clement
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Individual
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Individual
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Publication of US2082370A publication Critical patent/US2082370A/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

  • the invention relates to a writing machine, nore especially a shorthand writing machine by means of which one or a plurality of characters (letters, figures or the'like) may be simultaneously printed on a paper strip running over a printing roll.
  • the machines of this kind hitherto known have various drawbacks which may be ascribed partly to an injudicious transmission between the keys 1g of the keyboard and the types that are printed on the paper strip and partly by an injudicious arrangement of the keys, the types and the transmission members with regard to each other.
  • the present invention has for its purpose to provide a machine meeting all the requirements mentioned above and also a few additional ones; it has a very compact and simple construction and will enable the operator to work at a high rate of speed.
  • the machine moreover has the advantage that the keyboard with the keys and the key levers may be readily constructed as a single unit of a very compact form and may be taken out of the machine as such and used in other machines of the same or a diiierent kind.
  • the machine according to the invention is characterized in that the printing types are mounted facing the printing roll in a sequence, difierent from the one corresponding to the arrangement of the keys in the diiferent horizontal rows on the keyboard and that the sequence of the types is altered with respect to the arrangement of the keys on the keyboard by the insertion of transmission members of such shape and construction, that each one of the printing types 'will' take the most desirable position with regard to the printing roll.
  • FIG. l is a schematic illustration of the device for moving the types.
  • Fig. 2 represents an embodiment of a special arrangement of the types and keys.
  • Fig. 3 represents a method for pressing down several types by means of a single key.
  • Fig. 4 represents a keyboard.
  • Fig. 1 which very schematically represents only one key indicated by I, 2 is the paper roll which is rotatably mounted on a shaft 3.
  • the type bar 5 is held away from the roll 2 by meansof a spring I or the like.
  • the type bar 5 is moved by pressing down-the key I placed on the key lever 8, by means of a lever system constructed in a special manner according to the invention.
  • the key levers 8 are mounted together in openings of two interconnected parallel plates 9 and ID, in which openings saidkey: levers are able to move up and down.
  • the lever B' is held in the raised position by means of a spiral spring H.
  • the lower-part of the lever B is provided with parallel guide members, consisting of two transversal arms I! and i3 mounted about the lever 8 face It provided on a rotatable cam I I, which is mounted about a shaft it.
  • the cam I! is provided with a projection is, which projection is connected by means of a draw-bar 2
  • a given arrangement of the keys on the keyboard will not. always correspond to the sequence of the types facing the printing roll.
  • This problem might be solved by giving a special shape to the type bars 5 and the draw bars 20, but this will always aflect'the lightness of the'touch and render dismounting and repairs more difiicult.
  • the present invention avoids this drawback by giving to the transversal arms I2 and IS a shape corresponding to the location of the keys and thetypes.
  • An embodiment of this construction is illustrated in Fig. 2.
  • and 22 are two keys one for the letter A and one for the letter J.
  • transversal arms will be given a'special form for each individual case, in such a way that-in all cases the keys will obtain the most desirable and emcacious place on the keyboard, whereas on the other hand each type will always retain its proper position with regard to the printing roll and to the-other types.
  • Fig. 4 represents a keyboard which is eminent- 1y suitable for machines of the kind described above.
  • some of the keys are provided with letters on behalf of which the sequence of the types is altered with regard to their arrangement on the keyboard.
  • the sequence of the keys V and T is the reverse of that of the types corresponding to said keys and facing the printing roll; The same is the case with the keys H andJ and T and I".
  • cam II for the O is operatedbythekeyIlandthetransversai-srm with the pressure bar 4
  • an extra key 42 which by means of a forked transverse] arm 42 and pressure bars 44 and 45 co-operates with the cams 38 and 31 respectively.
  • pressure cams e. g. 3i and 32 or 31 and 38 need not be mounted on the same shaft, but that all or some of the pressure cams may be mounted on different shafts either separately or in groups.
  • the entire keyboard with all the keys, transversal arms and pressure bars may be taken out of the machine as a single unit, owing to the detachable connection between the pressure bars and the cams with the pressure surfaces.
  • the keyboard with the parts pertaining thereto may then be placed at once into any other suitable machine.
  • a shorthand typewriting machine for selectively printing either a single character or, simultaneouly, a plurality of characters, comprising 'a printing roll, a paper strip guided over said roll, a keyboard having horizontal rows of keys thereon, and a plurality of printing type bars disposed facing said printing roll and interconnected with corresponding ones ofsaid keys, the sequence of the type bars facing the printing roll being diflerent from the sequence of the keys in the horizontal rows, whereby a plurality of characters may be simultaneouly printed in a sequence dif- ⁇ grent from that in which they appear on the keyard.
  • a shorthand typewriting machine for selectively printing either a single character or, simultaneously, a plurality of characters, comprising a printing roll, a paper strip guided over said roll,
  • a keyboard having horizontal rows of keys thereon, a plurality of printing type bars disposed facing said printing roll and interconnected with corresponding ones of said keys, the sequence of the type bars facing the printing roll being different from the sequence of the keys in the horizontal rows, and transmission members between the keys and the type bars, the said members comprising key levers carrying said keys, pressure bars, at least one transverse arm for each key lever, transmitting the motion of said key levers to said pressure bars, and pressure cams actuated by said pressure bars and connected to the type bars, the length and shape of the transverse arms being dependent of the position along the printing roll of the type bars relating to the transmission members.
  • a shorthand typewriting machine for selectively printing either a single'character or, simultaneously, a plurality of characters, comprising a printing roll, a paper strip guided over said roll, a keyboard having horizontal rows of keys thereon. a plurality of'printing type bars disposed fscing said printing roll and interconnected with corresponding ones of said keys, the sequence of the type, bars facing the printing roll being different from the sequence of the keys in the horiscntal rows; and transmission members between the keys and the type bars, the said members comprising key levers carrying said keys, pressure bars, at least one transversearm for each key lever transmitting the motion of said key levers to said pressure bars, and pressure cams actustedby said pressure .bars and connected to the type bars, the length and shape of the transverse.
  • the transverse arms of at least one key lever carrying 'a plurality of pressure bars, said pressure bars cooperating each with aseparate pressure cam, at least one of said pressure cams simultaneously cooperating with another key lever;

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  • Input From Keyboards Or The Like (AREA)
US43263A 1934-10-03 1935-10-02 Shorthand writing machine Expired - Lifetime US2082370A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL2082370X 1934-10-03
NL449595X 1934-10-03
NL795104X 1934-10-03

Publications (1)

Publication Number Publication Date
US2082370A true US2082370A (en) 1937-06-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
US43263A Expired - Lifetime US2082370A (en) 1934-10-03 1935-10-02 Shorthand writing machine

Country Status (4)

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US (1) US2082370A (enMihai)
BE (1) BE411338A (enMihai)
FR (1) FR795104A (enMihai)
NL (1) NL39058C (enMihai)

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Publication number Publication date
FR795104A (fr) 1936-03-04
NL39058C (enMihai)
BE411338A (enMihai)

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