US3327831A - Assisted control device for an operation in a typewriter - Google Patents

Assisted control device for an operation in a typewriter Download PDF

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Publication number
US3327831A
US3327831A US492426A US49242665A US3327831A US 3327831 A US3327831 A US 3327831A US 492426 A US492426 A US 492426A US 49242665 A US49242665 A US 49242665A US 3327831 A US3327831 A US 3327831A
Authority
US
United States
Prior art keywords
lever
nose
typewriter
piece
key
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
US492426A
Other languages
English (en)
Inventor
Gagnebin Gustave
Costa Georges
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
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.)
Filing date
Publication date
Priority claimed from CH502765A external-priority patent/CH414695A/fr
Application filed by Paillard SA filed Critical Paillard SA
Application granted granted Critical
Publication of US3327831A publication Critical patent/US3327831A/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
    • B41J23/00—Power drives for actions or mechanisms
    • B41J23/02—Mechanical power drives
    • B41J23/04—Mechanical power drives with driven mechanism arranged to be clutched to continuously- operating power source
    • B41J23/06—Mechanical power drives with driven mechanism arranged to be clutched to continuously- operating power source by snatch rolls

Definitions

  • a pawl, or a cam mounted on a lever enters into contact with the continuously rotating control shaft.
  • the lever effects a certain travel until the disengagement of the pawl or of the cam from the control shaft.
  • a lock holds the lever so as to prevent it from returning to its position of rest.
  • the disengagement of the lock is brought about by one of the stops of the tabulating rail fixed to the carriage after movement of the latter out of the tabulating travel.
  • This device which is already complicated, is generally completed by a locking device for the keys of the keyboard, in order to avoid any false operation by the user which might bring about the blocking of the typewriter.
  • the present invention has for object the production of a simplified control device, reliable in operation.
  • the assisted control device for an operation in a typewriter including a continuously rotating control shaft and a control lever carrying a mechanism controlled by a key temporarily to connect said shaft and said control lever so as to bring the latter from a rest position to a working position
  • the typewriter including a continuously rotating control shaft and a control lever carrying a mechanism controlled by a key temporarily to connect said shaft and said control lever so as to bring the latter from a rest position to a working position
  • it includes a mechanism controlled by said key to maintain the said control lever in the working position so long as the key remains lowered.
  • This device includes a key 1 carried by an element 2 and a lever 3 interconnected by a pivot 4.
  • the lever 3 is guided laterally in a slot 5 of a support 6 integral with the frame of the typewriter. It pivots at 7 and is recalled to the rest position against a stop, not shown, by a spring 8.
  • the element 2 is guided at one of its ends by a pin 9 integral with the frame. Its other end drives, by a pin 10, a lever 11 rotating about a pivot 12 fixed on a support 13 integral with the frame of the typewriter.
  • the tabulating or control lever is constituted by two arms 14 and 15 situated in two different planes and rigidly connected by a rod 16.
  • pawls 17, 18 and 19 pivoting on axes 20 and 21 and recalled by springs 22, 23 and 24. In the position of rest, the pawl 17 abuts against a pin 25.
  • the locking lever 26 has a nose-piece 30 cooperating with a nose-piece 31 provided by the arm 14.
  • the arm 15 is connected, at one of its ends, to a lever 32 which, by means known and not shown, controls the disengagement of the carriage, the escapement and the tabulating stop, as well as the throwing into gear of a tabulating brake.
  • a control shaft 33 rotating continuously and having grooves therein is adapted to cooperate with a nose-piece 34 of the pawl 17, which may be held in the rest position by a nose-piece 35 of the pawl 19, The pawl 17 may be disengaged from this rest position by the pawl 18, these two pawls cooperating to this end through nose-pieces 36 and 37.
  • the pawl 19 is itself held out of the position in which it holds the pawl 17 by a stop 38 cooperating with the pawl 18, which is controlled by a stop 39 provided by the lever 11.
  • the mechanism operates in the following manner:
  • the lever 3 By pressing on the key 1, the lever 3 is made to pivot about 7, which moves the link 28 in the direction of the arrow A and, through means of the spring 29, the lever 26 is also moved in this direction.
  • the nose-piece 30 bears on the nose-piece 31 of the arm 14.
  • the element 2 drives the lever 11 in the direction of the arrow B and transmits, through the stop 39, its movement to the pawl 18, then, through the stop 38, to the pawl 19.
  • the nose-piece 35 disengages the pawl 17 which, under the influence of the spring 22, is suddenly engaged through its nose-piece 34 in one of the grooves of the shaft 33.
  • the tabulating arm 14 is then driven through the angle 3 and the pawl 17 disengages itself from the groove to resume its rest position, locked by the nose-piece 35, under the influence of the spring 23 which is stronger than the spring 22 and by means of the nose-pieces 36 and 37.
  • Nose-piece 30 assumes at this time a locked position under catch or nose-piece 31 and thus holds arm 14 in working position.
  • Arm 15, which is integral with arm 14, transmits its movement to the lever 32 which, by means known and not shown, controls the different operations mentioned above.
  • lever 3 pivots under the action of spring '8 and moves locking lever 26 by means of link 28. Nose-piece 30 is then separated from nosepiece 31, which enables arm 14 to return to its rest position under the action of a spring, not shown.
  • an assisted control device comprising a. continuously rotating control shaft, and at least one control lever, coupling means connecting said control lever to said control shaft in order to bring said lever from a rest position into a working position, a key actuating said coupling means and a locking mechanism actuated by said key to lock said control lever in its working position so long as the key remains lowered,
  • said locking mechanism including a locking lever having a nose-piece, a connecting link secured to said locking lever and said key lever, a spring attached to said locking and key levers, said control lever having a nose-piece, said nose-piece of the locking lever being adapted to cooperate with said nose-piece of said conrtol lever when it is in its locked position,

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Clamps And Clips (AREA)
  • Handling Of Sheets (AREA)
US492426A 1965-04-09 1965-10-04 Assisted control device for an operation in a typewriter Expired - Lifetime US3327831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH502765A CH414695A (fr) 1965-04-09 1965-04-09 Dispositif de commande assistée d'une opération dans une machine à écrire

Publications (1)

Publication Number Publication Date
US3327831A true US3327831A (en) 1967-06-27

Family

ID=4286680

Family Applications (1)

Application Number Title Priority Date Filing Date
US492426A Expired - Lifetime US3327831A (en) 1965-04-09 1965-10-04 Assisted control device for an operation in a typewriter

Country Status (6)

Country Link
US (1) US3327831A (enrdf_load_stackoverflow)
AT (1) AT258975B (enrdf_load_stackoverflow)
DE (1) DE6604517U (enrdf_load_stackoverflow)
ES (1) ES322959A1 (enrdf_load_stackoverflow)
GB (1) GB1137152A (enrdf_load_stackoverflow)
SE (1) SE307590B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400799A (en) * 1966-04-30 1968-09-10 Grundig Emv High speed type action

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2407195A (en) * 1944-02-17 1946-09-03 Ibm Typewriting machine
US2558413A (en) * 1948-12-30 1951-06-26 Underwood Corp Carriage rebound checking device
US2647611A (en) * 1950-12-12 1953-08-04 Underwood Corp Carriage control at tabulation rebounding
US3034629A (en) * 1958-11-05 1962-05-15 Grundig G M B H Shifting arrangement for typewriters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2407195A (en) * 1944-02-17 1946-09-03 Ibm Typewriting machine
US2558413A (en) * 1948-12-30 1951-06-26 Underwood Corp Carriage rebound checking device
US2647611A (en) * 1950-12-12 1953-08-04 Underwood Corp Carriage control at tabulation rebounding
US3034629A (en) * 1958-11-05 1962-05-15 Grundig G M B H Shifting arrangement for typewriters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400799A (en) * 1966-04-30 1968-09-10 Grundig Emv High speed type action

Also Published As

Publication number Publication date
ES322959A1 (es) 1966-11-16
DE6604517U (de) 1970-01-22
SE307590B (enrdf_load_stackoverflow) 1969-01-13
AT258975B (de) 1967-12-27
GB1137152A (en) 1968-12-18

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