US2858003A - Listing business machines and the like - Google Patents

Listing business machines and the like Download PDF

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Publication number
US2858003A
US2858003A US571916A US57191656A US2858003A US 2858003 A US2858003 A US 2858003A US 571916 A US571916 A US 571916A US 57191656 A US57191656 A US 57191656A US 2858003 A US2858003 A US 2858003A
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US
United States
Prior art keywords
platen
sheet
listing
front feed
feed mechanism
Prior art date
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Expired - Lifetime
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US571916A
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English (en)
Inventor
Bogert Thure Bernhard
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.)
ADDO AB
Original Assignee
ADDO AB
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Filing date
Publication date
Application filed by ADDO AB filed Critical ADDO AB
Application granted granted Critical
Publication of US2858003A publication Critical patent/US2858003A/en
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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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/48—Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts
    • B41J11/54—Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts in which one paper or set is fed towards printing position from the front of the apparatus

Definitions

  • This invention relates to listing business machines and the like.
  • An object of the invention is to provide an improved listing business machine or the like comprising frame end walls, a platen mounted in said walls and having a printing position at a front face thereof, a front feed mechanism for a sheet to be typed located above the printing position and movable between a listing position and a front feed position, and sheet pressing roller means located beneath the printing position and movable between a position in which they hold the sheet pressed against the platen, and a position in which they are at a distance from said platen and permit free insertion of the sheet between them and the platen.
  • a primary object of the invention is to provide a machine of this character in which the parts under the platen take a minimum of space, so as to allow maximum space under the platen for control means associated with program means. This object is attained by novel pressing roller suspension means located above the platen.
  • the business machine according to the invention is L characterized by a device connected to said front feed mechanism for moving, when said front feed mechanism is moved between its listing position and front feed position, said sheet pressing roller means between their corresponding positions in a path substantially parallel to or making a small angle with the connecting line between the printing position of the platen and the axis thereof.
  • An important advantage of such an arrangement is that, when the pressure rollers are moved against the platen, the paper sheets are swept around the platen in such a manner that the paper sheets are pulled even against the platen.
  • the device according to the invention can readily be operated, maintains the sheet safely in listing position and requires but little space beneath the platen.
  • the drawing shows a side view of part of the carriage of a bookkeepingmachine which is laterally reciprocable on a machine frame 1.
  • a machine frame 1 Of the means for mounting the carriage on the machine frame 1, there are shown merely by way of example balls 2 rolling in grooves provided in a rail 3 secured to the frame 1 and a rail 4 secured to the carriage.
  • the carriage has two end walls'5 one of which is visible in the drawing. Mounted for rotation in these end walls is the shaft 6 of a platen 7.
  • the platen 7 On the side facing the operator, or the front side, the platen 7 has a printingposition 8 in which types (not shown) by means of a ribbon (not shown) print on paper sheets placed in position around the platen.
  • a journal sheet with associated carbon paper sheets can be moved from the rear around the platen 7 so as to be moved downwardly along a guide plate 9 between rear journal pressing rollers 10 and the platen 7 down below and up. in front of the platen past the printing position 8 and between the platen and upper journal pressing rollers 11.
  • a customary front feed mechanism comprising two side plates 13 pivotally mounted on semi-round pivots 12 on the carriage end walls 5 and having a rear guide plate 14 and a transparent front guide plate 15 between which plates the account sheet can be fed past the printing position 8 between sheet pressing rollers 16 and the platen 7 and upwardly and rearwardly along a sheet guide plate 17 extending beneath and rearwardly of the platen.
  • the shafts 18 of the sheet pressing rollers 16 are movable towards and away from the guide plate 17 in U- shaped bearing elements 19 thereon, and the shafts are acted upon by leaf springs 20 secured to the guide plate and tending to hold the shafts in bearing engagement with the guide plate.
  • the guide plate 17 and rollers 16 are movable between a front feed position shown by continuous lines and a listing position shown by dash and dot lines, in a manner to be described in the following.
  • Adjacent its rear end the guide plate 17 for this purpose is pivotally and movably suspended on a shaft 21 extending between the carriage end walls 5 by means of a pair of U-shaped bearing elements 22 secured to the guide plate, and in addition said guide plate is hingedly connected with one arm of two two-armed levers 24 with the aid of pins 25 secured in lugs on the side margins of the guide plate.
  • Said two-armed levers 24 are mounted each on one carriage end wall 5 by means of a pivot 23.
  • the other arm of each lever 24 has a pin 27 engaging.
  • each arm 29 has an abutment pin 31 and a stud 32 to which one end of a pull spring 33 is anchored.
  • each pull spring 33 is anchored to a stud 34 on one end of a link 35 whose other end is hingedly connected with the respective side plate 13 of the front feed mechanism by means of a pin 36.
  • Each link 35 is guided on a pin 37 on the respective carriage end wall 5, said pin engaging in a longitudinal slot 38 in the link.
  • the front feed mechanism 13-15 can be pivoted between the front feed position shown by continuous lines in which each link 35as is shown by full lineshas the rear end of its slot 38 bearing against the pin 37, and a listing position shown by dash and dot lines in which a projection 39 on the rear end of each link 35 engages, as is shown by dash and dot lines, with a lug 40 on an arm 42 which is manually operable by means of a key-41.
  • The-two arms 42 are non-rotatively secured to the shaft 21 which is rotatively mounted in the carriage end walls 5, and a pull spring expanded between a pin 43 on the arm 42 and a pin 44 on the carriage and wall 5 tends to hold the arm applied against an abutment pin 46 in position to engage with the projection 39 of the link 35.
  • each link 35 follows the link and turns around the pin 30 in that the spring 33 retains the abutment pin 31 on arm 29 applied against the lug 47 of the link 35.
  • the associated lever 24 is swung counterclockwise around the pivot 23 by the pin 27 of the lever and the recess 28 of the arm engaging with eaeh other, the lever moving the front endof the guide plate 17 substantially horizontally rearwardly and the rear end of the guide plate obliquely rearwardly and upwardly while the sheet pressing rollers 16 are applied against the platen 7.
  • rollers 16 After the rollers 16 have been applied against the platen 7 they prevent the levers 24 and the arms from partaking in the latter part of the rearward movement of the links 35, whereby the lug 47 of the links is moved away from the pin 31 of the arms 29 under compression of the springs 33, the force of which hold the projections 39 of the links 35 safely engaged with the lugs 40 of the key arms 42 andpress the rollers 16 with the desired pressure against the platen 7 for safely retaining the inserted account sheet against the journal sheet and intermediate carbon paper sheets passed around the platen 7.
  • the described mechanism moves the sheet pressing rollers 16 towards and away from the platen 7 in a path indicated by a dash and dot line 48 for the axes of the rollers, said path making a small angle with the broken connecting line 49'be'tween the printing position 8 of the platen and the axis thereof. With somewhat other dimensions of the mechanism said path could be made wholly parallel with said connecting line 49.
  • a carriage frame end walls on said carriage, a platen mounted with its axis horizontal in said walls and having a printing position at a front face thereof, a front feed mechanism for a sheet to be typed located above the printing position and movable between a listing position and a front feed position, suspension means, pivots pivotally mounting said suspension means on said walls above the level of the axis of said platen, depending arms on said suspension means, pressure roller means supported by said depending arms beneath the printing position and the level of the axis of said platen, and connection means connecting said suspension means with said front feed mechanism for swinging said suspension means about said pivots as a result of the movement of said front feed mechanism between its listing position and its front feed position, said depending arms of said suspension means moving said pressureroller means during such swinging movement of said suspension means between a position, in which said pressure roller means hold the sheet pressed against said platen, and a position, in which said pressure roller means are at a distance from said platen, in a path substantially parallel to the connecting
  • a carriage frame end walls on said carriage, a platen mounted with its axis horizontal in said end walls and having a printing position at a front face thereof, a front feed mechanism for a sheet to be typed located above the printing position on said platen and movable between a listing position and a front feed position, sheet guide means extending beneath and rearwardly of said platen, supporting means displaceably and pivotally mounting the rear part of said sheet guide means on said end walls, suspension means, pivots pivotally mounting said suspension means on said end walls above the level of the axis of said platen, depending arms on said suspension means connected with the front part of said sheet guide means for assisting said supporting means in mounting said sheet guide means on said end Walls, pressure roller means mounted on the front part of said sheet guide means beneath the printing position and the level of the axis of said platen, and connection means connecting said suspension means with said front feed mechanism for swinging said suspension means about said pivots as a result of the movement of said front feed mechanism between its listing position and its front feed
  • a carriage frame end walls on said carriage, a platen mounted with its axis horizontal in said end walls and having a printing position at a front face thereof, a front feed mechanism for a sheet to be typed located above the printing position on said platen and movable between a listing position and a front feed position, sheet guide means extending beneath and rearwardly of said platen, supporting means displaceably and pivotally mounting the rear part of said sheet guide means on said end walls, suspension means, pivots pivotally mounting said suspension means on said end walls above the level of the axis of said platen, de-
  • a locking means mounted on said end walls 'and releasably engaging said link means, when said front feed mechanism is in its listing position, to hold said front feed mechanism in its listing position and relieve said front feed mechanism from the reaction of said spring means, said spring means being in a tensioned condition to retain said pressure roller means in the position in which they hold the sheet pressed against said platen.
  • first abutment means on said link means and second abutment means on said lever system said first abutment means being arranged to engage said second abutment means when said front feed mechanism is in its front feed position to take up the force of said spring means so that this force is not transmitted to said pressure roller means.

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  • Handling Of Sheets (AREA)
  • Handling Of Cut Paper (AREA)
US571916A 1955-03-25 1956-03-16 Listing business machines and the like Expired - Lifetime US2858003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE340844X 1955-03-25

Publications (1)

Publication Number Publication Date
US2858003A true US2858003A (en) 1958-10-28

Family

ID=20308371

Family Applications (1)

Application Number Title Priority Date Filing Date
US571916A Expired - Lifetime US2858003A (en) 1955-03-25 1956-03-16 Listing business machines and the like

Country Status (3)

Country Link
US (1) US2858003A (de)
CH (1) CH340844A (de)
DE (1) DE1087143B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978087A (en) * 1957-12-10 1961-04-04 Royal Mcbee Corp Apparatus for processing form cards
US2998905A (en) * 1961-09-05 Double strip tally roll feed

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425172A (en) * 1945-09-08 1947-08-05 Monroe Calculating Machine Front feed paper guiding means for writing machines

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1875917A (en) * 1929-08-27 1932-09-06 Operating means for front feed platens
US1874823A (en) * 1931-07-22 1932-08-30 Underwood Elliott Fisher Co Typewriting machine
AT141256B (de) * 1933-01-27 1935-04-10 Ncr Co Vorrichtung zum selbsttätigen Ausschwenken des Papierwalzentragrahmens bei Schreib-, Rechen- und Buchhaltungsmaschinen.
DE679613C (de) * 1937-09-10 1939-08-10 Triumph Werke Nuernberg Ag Vorrichtung zum Vorstecken von Kontenblaettern an Schreibmaschinen
US2407433A (en) * 1944-12-13 1946-09-10 Underwood Corp Typewriting machine
US2536524A (en) * 1946-06-27 1951-01-02 Underwood Corp Front-feed device
DE921992C (de) * 1952-02-23 1955-01-07 Exacta Bueromaschinen G M B H Vorsteckvorrichtung fuer schreibende Geschaeftsmaschinen, insbesondere Schreib- und Rechenmaschinen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425172A (en) * 1945-09-08 1947-08-05 Monroe Calculating Machine Front feed paper guiding means for writing machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998905A (en) * 1961-09-05 Double strip tally roll feed
US2978087A (en) * 1957-12-10 1961-04-04 Royal Mcbee Corp Apparatus for processing form cards

Also Published As

Publication number Publication date
DE1087143B (de) 1960-08-18
CH340844A (de) 1959-09-15

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