US2581227A - Device for actuating riders of tabulators for typewriters - Google Patents

Device for actuating riders of tabulators for typewriters Download PDF

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Publication number
US2581227A
US2581227A US106174A US10617449A US2581227A US 2581227 A US2581227 A US 2581227A US 106174 A US106174 A US 106174A US 10617449 A US10617449 A US 10617449A US 2581227 A US2581227 A US 2581227A
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United States
Prior art keywords
riders
stop
rail
rider
service
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
Application number
US106174A
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English (en)
Inventor
Ascoli Enzo
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.)
Paillard SA
Original Assignee
Paillard SA
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Filing date
Publication date
Application filed by Paillard SA filed Critical Paillard SA
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Publication of US2581227A publication Critical patent/US2581227A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41J21/00—Column, tabular or like printing arrangements; Means for centralising short lines
    • B41J21/04—Mechanisms for setting or restoring tabulation stops

Definitions

  • a mechanical device also" enables desired riders to be placed'in'to the position of service and the withdrawal thereof.
  • the operating key of the movable stop produces not only the placing in the position of service of this stop, but also the release of the carriage, so that the latter, actuated by its advancing spring, is moved automatically up to a longitudinal position defined by the stop coming into contact with the first rider placed into the operative position.
  • the release of the operating key produces, under the action of return springs, the return of the movable stop into the inoperative position and the re-establishment of the mechanical connection connecting the carriage to the escapement so that the carriage remains immovable in the said position.
  • the individual placing in position of the riders, and also their individual withdrawal, are generally obtained by operating an operating member in one direction or the other, or by operating two separate operating members.
  • the operating member or members generally actuate two movable stops (the one for placing in position, the other for withdrawal) located approximatelyin the vertical plane perpendicular to the axis of the platen and passing through the movable stop of the tabulator. It thus follows that these three stops should be so arranged relatively to the riders that all three are capable of co-operating with one and the same rider. 7
  • the withdrawal of all the riders located in the-position of service is effected by means of relatively complicated mechanisms whichgenerally consist of a supplementary rail doubling the rail-support of the riders and movable parallel to itself for simultaneously repelling, up to a withdrawn position, all the riders placed in position.
  • Some manufacturers have provided a withdrawing stop provided with two inclined planeswhich can be brought into the path of the riders and which, co-operating with'those placed in the position of service when the carriage is moved from left to right and from right to left, repels them into the withdrawn position.
  • the present invention has for its subject a device for the mechanical placing in position and withdrawal of the riders of a tabulator of typewriters, calculating machines and other machines Y of this type, which is provided with a support for the riders and with riders oscillating on a com-' mon axis and with means producing angular relative movements between the support and the riders and allowing of effecting the placing in individual position of each rider, the individual withdrawal of the riders and the simultaneous withdrawal of all the riders placed in position.
  • This device tends to remedy the disadvantages referred to by the fact that it has a single operating member. capable of being brought into four positions, a normal position, a position for placing the riders individually in position, a position for individual withdrawal of the riders and a position for the simultaneous withdrawal of the riders placed in position.
  • Figs. 1 and 2 are respectively a side view and a rear view of a typewriter provided with the device, some parts of the machine being omitted so as to enable the device to be seen.
  • Fig. 3 is a view in section On the line III-III of Fig. 2 and to a larger scale of the elements of the device.
  • Figs. 4 to 9 illustrate the elements of the device in the various relative positions which they 00- cupy during the various operations of the members of the tabulator.
  • the typewriter shown in Figs. land 2 is provided with a framework I covered with a covering 2 and a carriage 3 provided with a platen 4 sliding along the framework I.
  • This machine is provided with a tabulator provided with a movable stop 5 mounted on the framework and located in the central plane m of the machine. This stop is connected by transmission members to a key T for controlling its position.
  • the tabulator is also provided with a rail-support 6 so mounted be tween the lateral walls 1 of the carriage as to be capable of being moved angularly. For this pur-, pose the rail is carried by two pointed screws 8.
  • the rail-support is subjected to the action of a spring (not shown) tending to hold it in the angular position shown in Figs. 1 and 3.
  • the rail it carries equidistant riders ll) of which the number and pitch correspond with the length of the stroke of the carriage and with the pitch of typing.
  • the riders are mounted on a shaft H and are held in one or the other of their positions of withdrawal or of service by a spring (not shown). (See 'forthis purpose for example Swiss Patent No. 254,550.)
  • the rail-support carries an operating member 12 secured rigidly to one of its ends and enabling 3 the rail to be brought into four different stable positions illustrated in Figs. 3, 4, 6 and 8 orthe accompanying drawings.
  • Fig. 3 The position I illustrated by Fig. 3 is the nor-. mal or service position. In this Fig. 3, the riders are shown in their withdrawn. position, in which they cannot come into contact with the movable stop 5.
  • the device is also provided with two stationary stops i3 and M secured to the framework, one [3 forming a stop for placing the riders it in the position of service, while" the other M constitutes a stop for placing the riders in the" withdrawn position.
  • the two stops 13-, M are located in the plane m.
  • the device shown in the drawing is also pro-. vided with a bar, l6 parallel to the rail. 6 and so arrangedas to be out of the range or the riders ID for all the angular positions of rail 6 illustrated in Figs. 3 to 7'.
  • a tabulating mechanism comprising a frame, a carriage slidable on the frame, a key controlled movable stop mounted on the frame, a rail support rockably mounted on the carriage and urged to a first angular position and carrying an operating member for rocking movements from said first position, a plurality of. riders carried by the rail support and movable therewith during angular motions thereof and capable of angular motions relative thereto, means rigid.

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  • Character Spaces And Line Spaces In Printers (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
US106174A 1949-04-25 1949-07-22 Device for actuating riders of tabulators for typewriters Expired - Lifetime US2581227A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2581227X 1949-04-25
CH661729X 1949-04-25
CH1003419X 1949-04-25

Publications (1)

Publication Number Publication Date
US2581227A true US2581227A (en) 1952-01-01

Family

ID=27178520

Family Applications (1)

Application Number Title Priority Date Filing Date
US106174A Expired - Lifetime US2581227A (en) 1949-04-25 1949-07-22 Device for actuating riders of tabulators for typewriters

Country Status (2)

Country Link
US (1) US2581227A (fr)
CH (1) CH276434A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429415A (en) * 1967-10-17 1969-02-25 Ricoh Kk Tab programming control system by means of codes
US4687353A (en) * 1967-01-16 1987-08-18 International Business Machines Corporation Automatic format, mode control and code conversion for data processing and printing apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1082033A (en) * 1912-09-16 1913-12-23 Underwood Typewriter Co Type-writing machine.
CH202563A (de) * 1934-11-19 1939-01-31 Langenegger Adolf Einrichtung zum mechanischen Setzen und Löschen der Tabulator-Reiter an Schreib-, Rechen- und ähnlichen Maschinen.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1082033A (en) * 1912-09-16 1913-12-23 Underwood Typewriter Co Type-writing machine.
CH202563A (de) * 1934-11-19 1939-01-31 Langenegger Adolf Einrichtung zum mechanischen Setzen und Löschen der Tabulator-Reiter an Schreib-, Rechen- und ähnlichen Maschinen.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687353A (en) * 1967-01-16 1987-08-18 International Business Machines Corporation Automatic format, mode control and code conversion for data processing and printing apparatus
US3429415A (en) * 1967-10-17 1969-02-25 Ricoh Kk Tab programming control system by means of codes

Also Published As

Publication number Publication date
CH276434A (fr) 1951-07-15

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