US2558277A - Manifolding attachment for typewriters - Google Patents

Manifolding attachment for typewriters Download PDF

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Publication number
US2558277A
US2558277A US82569A US8256949A US2558277A US 2558277 A US2558277 A US 2558277A US 82569 A US82569 A US 82569A US 8256949 A US8256949 A US 8256949A US 2558277 A US2558277 A US 2558277A
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Prior art keywords
paper
platen
writer
paper webs
type
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Expired - Lifetime
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US82569A
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English (en)
Inventor
Sprinchorn Bertil Folke
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Egry Register Co
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Egry Register Co
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    • 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
    • B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper

Definitions

  • the principal object of the invention is to provide a type-writer attachment permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets, said paperwebs having carbon paper sheets interleaved with them and being provided with means, e. g. folding and/or tearing lines, perforations or the like arranged in determined positions in relation to the points where the paper webs are to be divided into paper sheets.
  • Another object of the present invention is to provide such an attachment functioning completely automatically and permitting, after the paper webs have been introduced into the attachment in the proper manner, the typing of paper sheet after paper sheet, without it being necessary for the typist to make any manipulations other than those customary on usual typing.
  • Fig. 1 shows a side view of a type-writer having an attachment according to the invention.
  • Fig. 2 on a larger scale shows the attachment as seen from behind, certain parts being shown in section for a better'understanding.
  • Fig. 3 shows a section on line IIIIII in Fig. 2.
  • Fig. 4 corresponds to Fig. 3, but shows the parts of the attachment in another position of operation.
  • Figs. 5 and 6 show detail sections on lines VV and VIVI respectively in Fig. 2.
  • Fig. 7 shows a section corresponding to Fig. 3 through the lower part of a modified attachment according to the invention.
  • Fig. 8 shows a part of a paper web to be used in connexion with the attachment according to Fig. 7.
  • Fig. 9 shows a section corresponding to Fig. 7 through another modification of the attachment according to the invention.
  • Fig. 10 shows a part of a paper web to be used in connexion with the attachment according to Fig. 9.
  • the attachment shown in Figs. 1 to 6 has a paper guide 3 (Fig. 1) participating in the movements of the carriage 2 of a type-writer I.
  • This paper guide 3 has an upright frame substantially formed of two frame gables 4, a transverse rods l8 serve as guides for a wall 5 arranged at the bottom and in front and a transverse stay 6 arranged at the rear and the top, said stay connecting like the transverse wall 5 the two frame gables with each other.
  • the paper guide 3 may be clamped to the type-writer carriage 2 by means of a pair of clamping screws 1 (one of which is shown in Fig.
  • the paper guide 3 displaceably rests on a foot comprising a rail 9 parallel to the direction of motion of the carriage, a pair of standards 10 (one of which is shown in Fig.
  • the paper guide 3 When the type-writer carriage 2 is reciprocated, e. g. on typing on the type-writer l, the paper guide 3 will thus participate in the movements of the carriage 2, the wheels l6 rolling on the stationary rail 9.
  • a pair of approximately vertical rods i8 (Figs. 2 to 4) are fixed to the inner sides of the two frame gables 4 by means of brackets ll.
  • These vertically adjustable roller I9 mounted on a shaft 20 forming a part of a sliding device which is displaceable along the rods 18.
  • this sliding device comprises a pair of lateral members 2
  • of the sliding device are furthermore connected by means of a bar 24 so that said device may obtain suflicient stability.
  • each of the lower legs 22 of the lateral members ll of the slidin device there is fixed one end of a wire 25, chain, band or the like (Figs. 2 to 4) which from the respective le 22 passes over a wheel 23 mounted on the respective paper guide gable 4 adjacent the upper end of the respective rod [8, from which wheel 26 the wire 25 or the like runs downwards to a winding drum 21 to which the other end of the wire or the like is fixed.
  • the two winding drums 21 are non-rotatably mounted on a common shaft 28 which is rotatably mounted in the two paper guide gables 4.
  • a small pinion 29 meshing with a big gear 30 is non-rotatably fixed on the shaft 28.
  • the gear 35 is non-rotatably connected with a sleeve 3
  • One end of the sleeve 3i is passed onto, and welded or otherwise fixed to, the hub 33 of the gear 30, in which hub there is inserted a pin 34 on which one end of a helical spring 35 located in the clearance between the sleeve 3
  • a sleeve 36 which is non-rotatably fixed to the shaft 32 and in which a pin 31 is inserted, to which the other end of the helical spring 35 is fixed.
  • the shaft 32 extends through the frame gable 4 adjacent the gear 30 and carries outside said frame a hand wheel 38 by means of which the shaft 32 may be rotated by hand, clockwise with respect to Figs. 3 to for loading the spring 35.
  • a ratchet wheel 39 (see also Fig.
  • a lever 43 is attached to the pawl 45.
  • This lever 43 projects through a slot provided in the front wall 5 of the paper guide 3 so that it is possible conveniently to lift the pawl out of engagement with the ratchet wheel while holding the hand wheel 38, whereafter the latter may be slowly rotated counterclockwise with respect to Figs. 3 to 5 for decreasing the tension of the spring 35.
  • the described spring mechanism thus holds the roller l9 lifted with the lateral members 2
  • the paper guide 3 at the rear has a paper web guide (Figs. 1 to 4) generally designated 44 and'having the form of a plate with a portion extending rearwardly from the paper guide.
  • the rear end 45 of said portion is fiat and obliquely inclined downwardly in a backward direction from the paper guide.
  • a recess extending from the top edge of the portion 47 down towards the lowest point of the curved portion 46 (see Figs. 3 and 4).
  • the width of said recess corresponds to the broadest paper to be typed in the type-writer.
  • a blade 48 which extends between the frame gable 4 and of which the relatively sharp lower edge is situated approximately at a level with the point where the vertical plate portion 41 merges into and curved portion 45 of the paper web guide 44 (Figs. 3 and 4).
  • a forwardly directed bearin lug 49 is mounted at the top of the portion 41 and in these bearing lugs there is rotatably mounted a shaft 50.
  • This shaft carries a flap 5] having approximately the same extension as the recess of the portion 41 and conforming approximately to the form of said portion and the part of the curved portion 45 situated adjacent said firstmentioned portion (see Figs. 3 and 4).
  • flap 5i two leaf springs 52 are fixed which extend upwardly and obliquely backwards from the shaft 58 through an assumed plane passing through the blade 48 and tangentin the roller I9 at the rear.
  • the attachment shown in Figs. 1 to 6 is intended for use in connection with paper webs folded alternatingly in opposite directions into a pile along folding and preferably also tearing lines along which the paper webs may be divided into paper sheets.
  • a pile of a paper web supply is deposited on the base H of the typewriter I at a distance from the paper guide 3, as is shown in Fig. l at 53.
  • the ends of the paper webs 54 lying at the top of the pile 53 are passed through guide members 55 arranged at the portion 45 of the paper web guide 44.
  • the guide members consist of bent end flaps of the plate portion 45, but one or both of the guide members may also be formed as separate parts which are displaceable on the plate portion 45 to fit paper webs of different width.
  • the paper webs may be fed by rotation of the platen, the paper webs being straightened between the blade 48 and the roller 49, so that the leaf springs 52 swing the flap 5i backwards towards the blade 48, whereby the paper webs are pressed against the front of the blade under a small pressure. Due to the resilient properties of the paper webs they will, on feeding, follow the curve of the curved portion 46 of the paper web guide 44 and run in a soft curve under the lower relatively sharp edge of the blade 48 without being caught thereon.
  • the paper webs easily bend along a folding and/or tearing line, and the portion of the paper webs following immediately upon such a line will consequently not follow the curved portion 45 of the paper web guide, when the folding and/or tearing line slides along the last part of the portion 46 towards the blade 48,
  • the releasing means is constituted by the following mechanism.
  • a pair of arms 51 which are bent approximately in a semicircle and extend backwards, are pivotally mounted at their one ends to the bearing lugs 49 by means of pins 58.
  • the arms 57 extend in an arch over the blade #58 and are connected behind the blade by means of a release bar 59 extending between the rear ends of the arms.
  • the arms 5'! are connected by means of a transverse bar 66 at a distance from the bearing pins 58.
  • the above described release mechanism functions as follows.
  • the roller I9 will be lowered upon further rotation of the platen, the sleeve 3! beginnin to turn counterclockwise with respect to Figs. 3 and 4.
  • the pin 66 mounted between the flanges 63 of the sleeve 3i presses the link 61' downwardly, so that the link swings the arcuate arm 5'!
  • the carbon paper sheets 66 are in the known manner attached with their one ends to strips 61 passed onto two holder pins 68 provided on a sliding device 69. To retain the carbon paper holding strips 61 safely on the pins 68 and prevent the paper webs 54 from standing out from the slide 66 a retaining rail 16 is detachably fixed to the ends of the pins 68, after the paper webs and the carbon paper sheets have been arranged in their proper relative positions.
  • the slide 69 comprises a rail, the ends of which have each three lugs H, the two outer ones of which are'bent upwardly and engage in front of (Figs. 3, 4), and the intermediate one (Fig. 2) behind, and oblique flange 12 directed towards the back of the platen 56 and provided on the respective adjacent frame gable so that the slide 69 may be moved towards and away from the platen approximately through a paper sheet length, i. e.
  • the slide 69 is suspended in the one ends of a pair of wires I3, chains, bands or the like which from the slide pass over a pair of wheels 16 rotatably mounted on the same shaft 26 as the roller l9 and having substantially the same effective diameter as this roller. From the wheels 18 the wires pass down to winding drums 15, to which their other ends are attached.
  • Said drums 75 are non-rotatably mounted on a shaft 16 which is rotatably mounted in the frame gables 4 and may be rotated by hand by means of a hand wheel (I attached to one end of the shaft outside the adjacent frame gable.
  • the shaft 16 is retained in adjusted position by a ratchet wheel 18 fixed to the shaft and by a latch plunger 19 (Fig. 6) cooperating therewith.
  • Said plunger is displaceable towards and away from the ratchet wheel in a sleeve 86 fixed to the front wall 5.
  • tending to press the plunger into engagement with the ratchet wheel '13 is inserted in said sleeve 86.
  • the described attachment functions in the following manner. After the paper webs 54 have been passed through the attachment over the roller l9 up to the platen 56 and the carbon paper sheets 66 have been fixed to the slide 69 between the paper web-s in the manner indicated, the hand wheel i1 is rotated by hand so that, when the roller [6 is in its uppermost position, the lower ends of the carbon paper sheets do not reach altogether to the engagement point between the platen 56 and the rear pressing rollers 62 of the type-writer (see Fig. 3) serving the purpose of pressing the paper sheet against the platen.
  • the paper webs 54 are then led past the lower ends of the carbon paper sheets 66 and are introduced between the platen 56 and the pressing rollers 62, whereupon the platen is rotated to feed the paper webs 56 which slide freely in relation to the carbon paper sheets 66 without causing the latter to participate in their movement, since the sprin '35 is suffi'ciently strong to hold the roller is lifted in the upper end position against the action of the force necessary to feed the paper webs.
  • carbon paper sheets 55 thus participate in the -movement of the webs up to the typing position of the type-writer, whereupon the typing of a sheetof each paper web can be started. Since the paper webs 56 and the carbon paper sheets Stare fed line for line during the typing, the release bar as is lowered in the manner described from vFig...3 position to Fig. 4 position. While being retained to the blade'li, the paper webs 54 arestraightened between the blade and the roller 19 during the further feed of the paper webs past theplaten 55, the springs 52 being bent somewhat forwardly. th'eFig.
  • the prings 52 are permitted to go back a small distance so that the folding and/or tearing line which was before engaging the lower a drums l5 retained by the latch plunger is hold 7 the wheels M and thus the roller it in lowered position and lower the latter some more upon continued feeding of the paper webs E i and the carbon paper sheets E past the platen 55.
  • the typist need only release'the platen 53 in the usualmanner, i. e. move aside the pressing rollers 82 in the known manner, so that the paper webs E4 and the carbon paper sheets 66 mayzfreely be'pulled back by the spring glilifting the slide it to 2d and thus the roller is and the to'the upper end position shown in Fig. 3, in which the carbon paper sheets E36 have left the engagement position between the platen lie-and the pressing rollers 82, while the paper webs't's l are stillinserted between the platen and the pressing rollers.
  • the typist causes the pressing rollers 32 again to press the paper webs as against the plateniefiand rotates the platen 56,
  • the :carbon paper sheets 56 always occupy the same :position in relation to the different paper sheets, whereby only certain parts of the carbon papersheets are used for obtaining thecopies.
  • the .still unused portions of the carbon paper sheets, situated between the used portions thereof, maybe moved into position of use by rotation iof the hand wheel ll, so that the upper end position of-the slide 59 and thus of the carbon paper .sheets .is changed, the position of the carbon paper sheets relative to eachpaper sheetof the .paper webs 54 being also'changed. In this man- :ner thewhole surface of the carbon paper sheet may be utilized.
  • FIG. '7 An example of such a modification is shown in Fig. '7.
  • the attachment shown therein is intended for use together with paper webs of the known kind'shown in Fig. 8, in which each sheet 83 includedin the web is provided with a pair of perforations 84 at a distance from the folding and tearing line separating the sheet from the adjacent one.
  • Fig. 7 completely agrees with that described in connection with Figs. 1 to 6 except for the means for retaining .the paper webs to'the paper guide.
  • a plane plate 35 extends, which has an obliquely rearwardly and downwardly directed extension 85 serving as a paper guide.
  • theplate 85 there are provided two holes 87, in which a pair of pins 83 mounted on a transverse rod 89 may engage, after having penetrated 'apair of perforations 84 provided in the paper Webs guided between the plate 85, 86 and a transverse rod 221 as well as the rod 89, so "that the paper webs are retained to the paper guide jframe.
  • the rod 89 is fixed to a pair of arcuate arms 9i mounted at 92 on the frame gables Band subjected to the action of a draw spring 93 tending to swing the pins 88 into contact with the paper webs, so that said pins 88 lock the paper webs to the frame as soon as a pair ofperforations 84 go past them during the feeding motion of the paper webs.
  • the levers 9! arranged each at a frame gable 5 are connected inter se by means of a rod 94 operable in the manner described in connection with Figs. 1 to 6 by means of the link El so that, on the lowering of the roller 19 (not shown in Fig. 'I), the levers SI areswung clockwise, withdrawing the pinsBB from the holes 83 of the plate 85 and from the perforations lid of the paper webs, so that the latter are released from the paper guide frame.
  • FIG. 9 Another modification of the means temporarily retaining the paper webs to the paper guide frame is illustrated in Fig. 9.
  • the attachment shown therein is intended for use together with paper webs of the known kind shown in Fig. 10, in which the paper webs at one edge have a line of equally spaced perforations 96 parallel with the longitudinal edge of the paper webs, the latter being separable into equally large paper sheets 9? having at one edge the same number of perforations 96.
  • the attachment shown in Fig. 9 fully agrees with the attachment according to Fig. 1 to 6 except for the retaining means proper.
  • a pair of rearwardly directed lugs 5a in which there is mounted a shaft 98 carrying a toothed wheel 99.
  • This wheel 99 is adapted to engage with the perforations 96 of the paper webs when said perforations are led past the toothed wheel by a paper guide plate I iii! extending between the lugs 5a of the two frame gables 5.
  • the paper webs When being pulled upwardly along the guide plate I at, the paper webs cause the toothed wheel 99 to rotate on account of their engagement with the teeth of the wheel.
  • the toothed wheel 99 is assumed to be provided with twice as many teeth as the numberof perforations St in one of the sheets 9'! of the paper webs, so that the toothed wheel 95 is consequently rotated through half a revolution for each paper sheet 9? of the paper webs passing the toothed wheel.
  • the toothed wheel 99 In order to be able to retain the paper webs to the paper guide frame after each feed of the paper webs through a paper sheet length, the toothed wheel 99 is therefore provided with a ratchet wheel NJ!
  • the paper guide may be constructed otherwise than shown. It may comprise e. g. an arm or frame pivotally mounted at its one end, while its other end, to which the carbon paper sheets are fixed,
  • W 10 maybe swung towards and away from the platen.
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets and having carbon paper sheets interleaved with them, comprising a paper guide frame so mounted as to participate in the movements of the type-writer carriage, retaining means for temporarily retaining the paper webs in relation to said frame approximately when a paper sheet arrives at the type-writer platen, releasing means for releasing the paper webs from said retaining means during the feed of a paper sheet past the type-writer platen, a member which is supported by the frame and over which the paper webs pass to the type-writer platen, said member being movable towards and away from the type-writer platen, flexible elongated means which are passed over said movable member and one end of which is fixed to said frame, the other end thereof carrying the carbon paper sheets, and means operable in response to movement of said movable member towards the type- Writer platen during the feed of a paper sheet past the type-writer platen for operating said releasing means for releasing
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets and having carbon paper sheets interleaved with them, comprising a paper guide frame so mounted as to participate in the movements of the type-writer carriage, retaining means for temporarily retaining the paper webs in relation to said frame approximately when a paper sheet arrives at the type-writer platen, releasing means for releasing the paper webs from said retaining means during the feed of a paper sheet past the type-writer platen, a member which is reciprocatable in a straight path on the said frame towards and away from the typewriter platen and over which the paper webs pass to the type-writer platen, flexible elongated means which are passed over said movable member and one end of which is fixed to said frame, the other end thereof carrying the carbon paper sheets, and means operable in response to movement of said movable member towards the typewriter platen during the feed of a paper sheet past the type-writer platen for operating said releasing means for releasing the paper
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets and having carbon paper sheets interleaved with them, comprising a paper guide frame so mounted as to participate in the movements of the type-writer carriage, retaining means for temporarily retaining the paper webs in relation to said frame approximately when a paper sheet arrives at the type-writer platen, releasing means for releasing the paper webs from said retaining means during the feed of a paper sheet past the type-writer platen, a member which is supported by the frame and over which the paper webs pass to the type-writer platen, said member being movable towards and away from the type-writer platen, flexible elongated means which are passed over said movable member and one end of which is fixed to said frame, the other end thereof carrying the carbon,
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets, said paper webs having carbon paper sheets interleaved with them and being I provided with means occupying determined positions in relation to the points where the paper webs are to be divided into paper sheets, comprising a paper guide so mounted as to participate in the movements of the type-writer carriage, a movable member on said paper guide, which is movable in a path, one end: of which is situated closer to the type-writer platen than the other one, said paper webs being passed over said movable member to the type-writer platen from a paper web supply, flexible elongated means which are passed over said movable member and one end of which is fixed to said paper guide, the other end thereof carrying the carbon paper sheets, retaining means on said guide cooperating with said means on the paper webs to automatically retain the'paper webs, during their feed to the type-writer platen, once for each paper sheet length to said paper guide between said member and the
  • a type-writer attachment for permitting-the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets, said paper webs having carbon paper sheets interleaved with them and being provided with folding lines arranged at a distance from each other of a paper sheet length, comprising a frame so mounted as to participate in the movements of the type-writer carriage, a movable member on said frame, which is movable in a path, one end of which is situated closer to the type-writer platen than the other one, said paper webs being passed over said movable member to the type-writer platen from a paper web supply, flexible elongated means which are passed over said member and one end of which is fixed to said frame, the other end thereof carrying the carbon paper sheets, a blade edge on said frame between said member and the paper web supply, a paper web guide mounted on said frame to lead the paper webs in a curvepast said blade edge so that the paper webs engage with said blade edge when a folding line on the paper Webs reaches said
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets, said paper webs having carbon paper sheets interleaved with them and being provided with folding lines arranged at a distance from each other of a paper sheet length, comprising a frame so mounted as to participate in the movements of the type-writer carriage,
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets, said paper webs having carbon paper sheets interleaved with them and being provided with perforations occupying determined positions in relation to the points where the paper webs are to be divided into paper sheets, comprising a paper guide-so mounted as to participate in the movements of the type-writer carriage, a movable member on said paper guide, which is movable in a path, one end of which is situated closer to the type-writer platen than the other one, said paper Webs being passed over said movable member to the type-writer platen from a paper web supply, flexible elongated means which are passed over said member and one end of which is fixed to said guide, the other end thereof carrying the carbon paper sheets, retaining pins On said guide cooperating with said perforations of the paper webs to automatically retain the paper webs, during their feed to the platen, once for each paper sheet length to said paper guide between said member and the
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets, said paper webs having carbon paper sheets interleaved with them and be ing provided with a line of equally spaced perforations'along one side edge, comprising a paper guide so mounted as to participate in the move ments of the type-writer carriage, a movable member on said paper guide, which is movable in a path, one end of which is situated closer to the type-writer platen than the other one, said paper webs being passed over said movable mem-- her to the type-writer platen from a paper web supply, flexible elongated means which are passed over said member and one end of which is fixed to said guide, the other end thereof carrying the carbon paper sheets, a toothed wheel adapted to engage with said line of perforations in the paper webs and mounted on said guide between said member and the paper web supply, locking means on said guide for automatically retaining said toothed wheel one for each successive rotation of
  • a type-writer attachment for permitting the 1 typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets and having carbon paper sheets interleaved with them, comprising a paper guide so mounted as to participate in the movements of the type-writer carriage, retaining means on said guide for temporarily retaining the paper Webs in relation to said guide approximately when a paper sheet arrives at the type-writer platen, re-
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets and having carbon paper sheets interleaved with them, comprising a paper guide so mounted as to participate in the movements of the type-writer carriage, retaining means on said guide for temporarily retaining the paper webs in relation to said guide approximately when a paper sheet arrives at the typewriter platen, releasing means for releasing the paper webs from said retaining means during the movement of a paper sheet past the type-writer platen, a member which is reciprocatable in a straight path on the said guide towards and away from the type-writer platen and over which the paper webs pass to the type-writer platen from said retaining means, said member being movable towards and away from the type-writer platen, flexible elongated means which are passed over said movable member and one end of which is fixed to said guide, the other end thereof carrying the carbon paper sheets, and means operable in response to movement of said movable member in relation to the type-writer plate
  • a type-writer attachment for permitting the typing and obtaining of copies on a plurality of superimposed paper webs adapted to be divided into paper sheets and having carbon paper sheets interleaved with them, comprising a paper guide so mounted as to participate in the movements of the type-writer carriage, retaining means on said guide for temporarily retaining the paper webs in relation to said guide approximately when a paper sheet arrives at the type-writer platen, releasing means for releasing the paper webs from said retaining means during the movement of a paper sheet past the type-writer platen, a member supported by said guide and over which the paper webs pass to the type-writer platen from said retaining means, said member being movable towards and away from the type-writer platen, flexible elongated means which are passed over said movable member and one end of which is fixed to said guide, the other end thereof carrying the carbon paper sheets, means operable in response to movement of said movable member in relation to the type-writer platen for operating said releasing means for releasing the paper webs from said retaining means and

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  • Discharge By Other Means (AREA)
  • Handling Of Sheets (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
US82569A 1947-03-29 1949-03-21 Manifolding attachment for typewriters Expired - Lifetime US2558277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE275174X 1947-03-29

Publications (1)

Publication Number Publication Date
US2558277A true US2558277A (en) 1951-06-26

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Application Number Title Priority Date Filing Date
US82569A Expired - Lifetime US2558277A (en) 1947-03-29 1949-03-21 Manifolding attachment for typewriters

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US (1) US2558277A (pt)
CH (1) CH275174A (pt)
DE (1) DE856155C (pt)
GB (1) GB657108A (pt)
NL (1) NL77672C (pt)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1995087A (en) * 1933-07-26 1935-03-19 United Autographic Register Co Typewriter attachment
US2000641A (en) * 1934-07-30 1935-05-07 United Autographic Register Co Typewriter attachment
US2026845A (en) * 1935-01-03 1936-01-07 Egry Register Co Typewriter attachment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1995087A (en) * 1933-07-26 1935-03-19 United Autographic Register Co Typewriter attachment
US2000641A (en) * 1934-07-30 1935-05-07 United Autographic Register Co Typewriter attachment
US2026845A (en) * 1935-01-03 1936-01-07 Egry Register Co Typewriter attachment

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Publication number Publication date
NL77672C (pt) 1954-11-15
DE856155C (de) 1952-11-20
CH275174A (fr) 1951-05-15
GB657108A (en) 1951-09-12

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