US1356652A - Typewriting-machine - Google Patents

Typewriting-machine Download PDF

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Publication number
US1356652A
US1356652A US265028A US26502818A US1356652A US 1356652 A US1356652 A US 1356652A US 265028 A US265028 A US 265028A US 26502818 A US26502818 A US 26502818A US 1356652 A US1356652 A US 1356652A
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United States
Prior art keywords
plate
type
machine
bar
lever
Prior art date
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Expired - Lifetime
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US265028A
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English (en)
Inventor
Olivetti Camillo
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Individual
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Individual
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Publication of US1356652A publication Critical patent/US1356652A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J7/00Type-selecting or type-actuating mechanisms
    • B41J7/02Type-lever actuating mechanisms

Definitions

  • the present invention is applicable' to every kind of keyboard machine, as for example to the typewriter in which a type-bar bears one or more characters, the
  • Figure I is a side view of the lever system which transmits movement from the key to the type-bar and from the said typebar .to the 'escapement, one of the central bars of the machine being shown by way of example.
  • Fig. II is, a back view of the lever system which transmits. the movement of the typebar plate to the type-bar, and the movement raised is shown by Way of example.
  • a lateral type-bar at the moment of being Fig. III ' is a section of the rod which transmits the movement of the type-bar.
  • Fig. IV- is a view of a plat. for holding the small springs which oppose the working movements of the type-bars; these springs Specification of Letters Patent. P t t t, 2 1 2 I Application filed December 2, 1918. Serial No. 265,028.
  • Figs. and VI are diagrammatic views of two analogous forms of mechanism.
  • Fig. VII is a side view of the form which can also be given to the first lever which is actuated by the key. 7
  • Fig'VIII is'a detail of one of the parts which transmit movement from the lever to the escapement.
  • 1 represents the key which i struck -by the finger of the operator.
  • the stem 2 of the key is guided in the opening 3 formed in the plate 4 placed in front of the machine and fixed to the frame, and is connected by the pivot 5 to the key lever 6 which has the form shown in the drawing.
  • This lever pivots on a pin 7 which, in practice, consists of steel wire fixed in a groove cut in a small block 8, and isguided in its movement by a lot made in the said block 8.
  • the block 8 is connected to a plate 9 fixed to the frame of the machine.
  • Fig. I the plate9 is represented in section with four rows of blocks 8 in the usual position for a standard keyboard.
  • the plate 9 has elongated holes which give passage to the stems 2.
  • the pivots l0 and 12 may be cylindrical but preferably they are spherical.
  • Thepivot 12 may be held by pring ressure in the branches of a spring fork 1 which is provided at its extremity with a screw fixed tothe rod.11. This spring fork is generally employed in typewriters and is not considered as part of my invention.
  • the sub-lever 13 is pivoted upon a wire 14 fixed in a recess in the plate 15 which has the section shown in the drawings.
  • This plate has practically the shape of an, arc of a circle, (see Fig. II) and is provided with radial-slots corresponding to each typebar of the machine.
  • the movement of the lever 13 is transmitted to the type-bar 21 by a link 19 which is pivoted at 18 and 20 to said lever and type bar respectively.
  • the type bar 21 made of steelplate, pivots on the wire 22, rises, and strikes, with its typl -head 24 against the printing point 0 of the plate 29.
  • the link 19 may be constituted by two small plates l9and 19 (Fig. III) of spring material, which clam between them two spherical pivots 18 an 20.
  • the ends of the pivot 18 are riveted to the two small plates, while the other pivot 20 is riveted only to the plate 19', the other end of pivot 20 being held by means of a small stem, which is en aged in a hole in the other. small plate.
  • the stem of the pivot 20 can be forced out of the hole in which it normally is held and the plates can be spread apart.
  • the type-bar 21 normally rests adjacent its type-head 24 upon a pad or cushion 58 as in the ordinary typewriters.
  • The, type-head 24 is bent at an angle equal to that formed by the type-bar, with the vertical.
  • the type-bars are enlarged (Fig. I) and as in the Underwood machine, they are guided in slots cut in a cast iron plate or type-bag; segment 28 fixed to the frame of the machine. In asuitable recess in this segment is fixed the tempered steel wire 22 on which the type-bars turn.
  • the extremity 25 of the type-bar is hooked so that it can be made to clasp the wire 22- without removing the wire.
  • the parts described are so constructed and disposed as to cause all the key levers 6' and the respective rods 11 to move practically in vertical planes which are parallel 'to' the median vertical plane which through the printing point O.
  • the sub-lever 13 may be madein different shapes,but the shape shown in the drawingsis themost convenient, preserving from dust the part guided in the slot of the plate 15y
  • the pivot 12 is on a projection 16 on the said lever 13 and this projection is bent allel tothe said vertical median plane of order that its end, which carries the pivot 12, may lie in a vertical plane and keep prac* tically this position during the action too.
  • the lower part of the sub-lever 13 has a slot 30 in which the pivot wire 14 can enter; this slot is analogous to the slots of the lever 6' and the type-bar.21, so that 'the levers 6 and ⁇ 13 and the typebar 21 may be assembled and dismounted without removing the wires 7,1422 upon which they turn.
  • the plate '35 may be more or less moved, parallel to itself.
  • the plate 35 is provided at its ends with two projections 37 on which are pivoted two curved arms 38 carriedby a rock shaftsupported at its ends by two pivots 4O fixed'to the framemf the machine.
  • a small bar 41 which is fslidable endwise through an opening 42 in the frame of the machine.
  • a washer 43 To the screwthreaded end of the bar 41' are applied a washer 43, and two nuts 44-45.
  • the plate 35 may be more or less removed from the plate 15 in order to vary the length and consequently the tension of all the springs.
  • each type-bar bears toward its lower end a curved projection 23 which in its movement strikes against a plate 46 bent into-the form of an arc, the center of which is the. printing point C), said plate extending through the entire angle in which are disposed the type-bars, so that each type-bar in .its movement strikes against a part of the are shaped plate 46.
  • This plate 46 has a shape similar to the plate which in the Underwood typewriters acts as universal bar and has a similar duty, viz., to impart a backward movement to the type-bar,to maintain the same in its place during the movement, and' at the same time to transmit the movement to the escapement and to the ribbon, but is guided in its movement in a different way.
  • the plate 46 is reinforced both by a plate 47 which is attached thereto at its ends, and by means of cross-plates 48 having openings inwhich are engaged two pivots 49 carried by two curved arms 50. These arms 50 are fixed to .a rockshaft 31 whose ends move on two pivots 53 carried by two projections 52 fixed to the segment 28 which is fixed to the frame of the machine.
  • Rigidly connected 1 to the system of the plates 464748 is another plate 54 of suitable length provided at its end with a hole which serves as a bearing for a pivot 55- fixed to an arm .56 mechanicallyconnected to the little shaft 57 which transmits the movement of the type-bars to the escapement and to the ribbon elevating mechanism.
  • a spring not represented in drawings, operating on the shaft 51 or on the arm 56 returns the parts-to normal position.
  • the end of the plate 54 may be shaped-as a fork to receive the pivot 55 as shown in Fig. VIILsuch arrangement facilitating the assembling of the machine.
  • the type-bar is pushed bythe sub-lever 13 by means of the rod 11. I Instead of being pushed the type-bar may be pulled as, illustrated in the diagrammatic Fig. VI without any substantial change in the system of the movement.
  • the lever 6 may be formed in different shapes, among which is to be noted the shape illustrated in Fig. VII without any substantial change in the system of the movement.
  • I claim- 1 In a typewriting machine, the combination of a set of key levers; a set of typebars; and a connection between each 'key lever and the corresponding type-bar comprising a sub-lever pivoted at one of its ends to the machine and connected intermediate of its ends with means for operating it, said meansco'mprising a rod engaging said sublever and connected to the keylever, said 7 in front of the supporting plate; a connecting no part of the present.
  • connection also comprising a link pivoted at one end to the end of the sub-lever and at its other endto the type-bar, said link moving also in a vertical plane parallel to the median vertical plane of the machine, substantially as described.
  • a typewriter the combination with. the machine frame, the sub-levers and their actuating devices, and the type-bars connected with the sub-levers; of a'supporting plate with which the sub-levers are pivotally associated an adjustable plate located in front of the supporting plate; aeconnecting spring between the adjustable plate and each sub-lever; and means for adjusting the second-named plateto regulate the tension of said springs comprising a rock shaft having a pair oflateral arms fixed to it, said arms being pivoted attheir free ends to the adjustable plate, and a laterally-projecting guide member on said plate slidably and adjustably engaged with the adjacent portion of the frame to insure a bodily parallel movement of the plateduring adjustment.

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  • Accessory Devices And Overall Control Thereof (AREA)
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US265028A 1919-01-09 1918-12-02 Typewriting-machine Expired - Lifetime US1356652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT499203X 1919-01-09

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US1356652A true US1356652A (en) 1920-10-26

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US265028A Expired - Lifetime US1356652A (en) 1919-01-09 1918-12-02 Typewriting-machine

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US (1) US1356652A (en(2012))
DE (3) DE269999C (en(2012))
FR (2) FR459878A (en(2012))
GB (2) GB191313339A (en(2012))

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Publication number Priority date Publication date Assignee Title
US5442124A (en) * 1989-06-30 1995-08-15 Firmenich Sa Process for the preparation of novel aromatic compounds
IS3597A7 (is) * 1990-06-22 1991-01-17 Jonatan Hf. Vél til að hreinsa úr framparti hausbein, hrygg, tálkn og líffæri
DE69111557T2 (de) * 1990-10-22 1996-01-18 Firmenich & Cie (2E,4Z,7Z)-Äthyldekatrienoat sowie seine Verwendung als Duft- und Aromastoff.
US5554069A (en) * 1995-06-01 1996-09-10 The Laitram Corporation Apparatus and method for subdividing a fish into a loin-containing portion and a viscera-containing portion

Also Published As

Publication number Publication date
FR499203A (fr) 1920-02-04
GB191313339A (en) 1914-04-30
DE269999C (en(2012)) 1914-02-07
GB149403A (en) 1920-08-09
DE366615C (de) 1923-01-08
FR459878A (fr) 1913-11-18
DE323245C (de) 1920-07-19

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