US1987523A - Margin-regulating stop - Google Patents

Margin-regulating stop Download PDF

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Publication number
US1987523A
US1987523A US703701A US70370133A US1987523A US 1987523 A US1987523 A US 1987523A US 703701 A US703701 A US 703701A US 70370133 A US70370133 A US 70370133A US 1987523 A US1987523 A US 1987523A
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US
United States
Prior art keywords
margin
stop
teeth
stops
spring
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
US703701A
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English (en)
Inventor
Benxing Hugo
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.)
AG Vorm Seidel & Naumann
Seidel & Naumann AG
Original Assignee
Seidel & Naumann AG
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
Application filed by Seidel & Naumann AG filed Critical Seidel & Naumann AG
Application granted granted Critical
Publication of US1987523A publication Critical patent/US1987523A/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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/50—Side-stop mechanisms

Definitions

  • the invention relates to a device for limiting the commencement and the end of the line in connection with typewriters, calculating machines and the like, ⁇ in which margin-regulating stops co-operate with a ilxed stop, are guided on a common bar or each on a separate bar, and possess pawls movable by the ends of the carriage, the said pawls co-operating with teeth or notches in the guide bar.
  • each of the movable margin stops is acted upon by a force which, after the pawl of the stop has been lifted from the teeth in the guide bar, moves it automatically up to the appertaining stationary stop.
  • the lifting of the pawls of the margin stops from 'the teeth of the guide bar takes place preferably by means of an oscillatory actuating bar, provided separately for each margin stop and extending over the entire range of the margin stops.
  • each margin stop is acted upon by a working spring which, through the medium of a gear wheel, the teeth of which engage with the teeth of a guidebar preferably bearing at the same time the teeth for the pawls 0f the margin stops, is tensioned when the movable stop is moved away from the ilxed stop.
  • the fixed axisof each of these gear wheels is surrounded by a drum-like casing, in which a spiral spring is so arranged that the same is tensioned as the margin stop moves away from the xed 5 stop. It would also be possible to employ springcontrolled cords or connecting rods or any other force with the same results.
  • these stops are, in accordance with the invention, made to be shiftable at the marginregulating members in the direction of movement 15 of the latter, 'and are adjustable by means of pressure screws.
  • a form of embodiment of the invention is illustrated in the drawing, in which the guide bar for the margin-regulating stops is mounted on the movable carriage, while the fixedv stop cooperating with the margin-regulating ⁇ stops is located at the middle of the rear wall of the frame of the machine.
  • Fig. 1 is a rear view of the guide bar and the margin-regulating stops.
  • Fig. 2 is a part plan view of the arrangement according to Fig. 1, and
  • Fig. 3 is an elevational view of the same.
  • margin-regulating members 2 and .2 On a guide bar 1 there are provided so as to be capable of sliding'thereon margin-regulating members 2 and .2. These members are exactly identical in reverse form. The following description refers to the margin regulating member 2 in Fig. 1 at the left. The corresponding parts of the right hand member 2' are furnished with the same reference characters having, however, an index. y
  • the margin-regulating'member 2 is U-shaped in cross-section (Fig. 3).4
  • the arms possess at 4) their ends small edges 2a bent off at right angles, so that the guide bar-1 is encompassed by the member 2 on all four sides. Beyond this the arms also possess at right angles to the direcpressure spring- 'l ensures engagement between the teeth 5 and 6 in the stationary position.
  • a stop 13 Becured to the member 2 is a stop 13, which may be displaced in grooves 14, 15 parallel to the direction of movement of the member 2 and is held by means 'of pressure screws 16.
  • the stops 13 and 13' in cooperation with a fixed stop 11, which is arranged at the middle of the rear wail of the machine and normally projects into the path of the said first stops, limit the path of operation of the paper-carriage.
  • a yoke 18 or 18' For the pawls 4 and 4' of each of the two members 2 and 2' there is provided in each case a yoke 18 or 18'. These yokes each .possess a bent operating lever 19 or 19'. The yokes themselves are mounted to rock on the side walls 20, 21, which also act as bearings for the platen, and are each acted upon by a spring' 22 or 22 tending to lift the yokes 18 or 18' from the pawls 4 or 4'.
  • each member 2 there is also provid-1d a bearing 8 or 8' for the shaft 9 of a gear wheel 10 carrying a spring casing 11 having a spiral spring 25.
  • the one end of the spring is anchored to the fixed shaft 9 and the other end to the casing 11, and the winding means for the spring is so chosen that the latter is tensioned when the stop 13 or 13' moves away from the fixed stop 17.
  • the teeth of the wheel 10 co-operate with the teeth 12 of the guide bar 1.
  • a device for limiting the beginning and the end of a line on typewriters, calculating machines and similar machines comprising in combination, a shiftable rail provided with teeth, an abutment secured in fixed relation adjacent the rail, margin stops slidably mounted on said rail, s. ratchet carried by each stop and adapted to engage the teeth on the rail, means'releasing the ratchet, a spring adapted to automatically return the stop for engagement with the fixed abutment after the rachet has been released from the teeth.
  • a device for limiting the beginning and the end of a line on twpewriters, calculating machines and similar machines comprising in combination, a shiftable rail provided with teeth, an abutment secured in xed relation adjacent the rail, margin stops slidably mounted on said rail, a ratchet carried by each stop and adapted to engage the teeth on the rail. means releasing the ratchet.
  • a spring adapted to automatically return the stop for engagement with the xed abutment after the ratchet has been released from the teeth of the rail, a gear, one end of the spring having connection with the gear, the other end of said spring being connected to a fixed support, means on the rail engaging the gear for causing the gear to be revolved and for causing winding of the spring when the rail is shifted.
  • a device for limiting the beginning and the end of a line on typewriters, calculating machines and similar machines comprising in combination, a shiftable rail provided with teeth, an abutment secured in fixed relation adjacent the rail, margin l stops slidably mounted on said rail, a ratchet carried by each stop and adapted to engage the teeth on the rail, means releasing the ratchet, an adjustable abutment projecting laterally from each stop, a spring adapted automatically to return the stop so that the adjustable abutment will engage i the fixed abutment after the ratchet has been released from the teeth of the rail, and means for causing the spring to be wound when the rail is Y

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)
  • Knitting Machines (AREA)
US703701A 1933-01-03 1933-12-23 Margin-regulating stop Expired - Lifetime US1987523A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE411772X 1933-01-03
DE1987523X 1933-01-03

Publications (1)

Publication Number Publication Date
US1987523A true US1987523A (en) 1935-01-08

Family

ID=27623656

Family Applications (1)

Application Number Title Priority Date Filing Date
US703701A Expired - Lifetime US1987523A (en) 1933-01-03 1933-12-23 Margin-regulating stop

Country Status (3)

Country Link
US (1) US1987523A (xx)
BE (1) BE400423A (xx)
GB (1) GB411772A (xx)

Also Published As

Publication number Publication date
BE400423A (xx)
GB411772A (en) 1934-06-14

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