US2558277A

US2558277A - Manifolding attachment for typewriters

Info

Publication number: US2558277A
Application number: US82569A
Authority: US
Inventors: Sprinchorn Bertil Folke
Original assignee: Egry Register Co
Current assignee: Egry Register Co
Priority date: 1947-03-29
Filing date: 1949-03-21
Publication date: 1951-06-26
Anticipated expiration: 1968-06-26
Also published as: NL77672C; GB657108A; DE856155C; CH275174A

Description

June 26, 1951 B; F. SPRINCHORN 3,

MANIFOLDING ATTACHMENT FOR TYPEWRITERS I Filed March 21, 1949 s'sheets-sheet 1 June 26, 1951 B. F. SPRINCHORN 8,

MANIFOLDING ATTACHMENT F OR TYPEWRITERS Filed March 21, 1949 5 Sheets-Sheet 2 June 26,- 1951 B. F. SPRINCHORN MANIFOLDING ATTACHMENT FOR TYPEWRITERS 5 Sheets-Sheet 3 Filed March 21, 1949 June 26, 1951 B. F. SPRINCHORN MANIFOLDING ATTACHMENT FOR TYPEWRITERS 5 Sheets-Sheet 4 Filed March 21; 1949 June 26, 1951 B. F. SPRINCHORN Q 2,558,277

MANIFOLDING ATTACHMENT FOR TYPEWRITERS 1 Filed March 21, 1949 5 Sheets-Sheet 5 58 W L I77am v (32,007 J n/M46,- 1

Patented June 26, 1951 MANIFOLDING ATTACHMENT FOR TYPEWRITERS Bertil Folke Sprinchorn,

signor to The Egry Register Company, Dayton,

Ohio

Malmo, Sweden, as-

Application March 21, 1949, Serial No. 82,569

In Sweden March 29, 1947 a 11 Claims. (Cl. 197-126) This invention relates to a type-writer attachment.

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.

Further objects and advantages of the invention will appear from the following description of three embodiments of the invention illustrated in the acocmpanying drawings as examples only.

In the drawings:

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. 1) which are inserted each in a threaded hole in an arm 8 projecting from the frame 3, so that the screws may be pressed each against a gable of the typewriter carriage 2. However, it is obvious that thepaper guide 3 may be fixed to the carriage 2 also in any other manner. 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. 1) which support the rail 9 and the lower ends of which rest on the base ll supporting the type-writer I, by means of a pair of rubber washers l2,,a pair of arms I3 extending forwardly from the standards, a rod l4 connecting said arms, and a pair of clamping screws i=5 arranged in the same manner as the abovementioned clamping screws 1 for clamping the paper guide foot to the type-writer. It is obvious, however, that the rail 9 displaceably supporting the paper guide may be held in the proper position relative to the type-writer also in a manvner other than that shown. The paper guide 3 rests on the rail 9 by means of a pair of rollers l6 mounted on the front wall 5 (Figs. 2 to 4).

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. Except forthe shaft 20 this sliding device comprises a pair of lateral members 2| extending each along a rod I 8 and having a lower horizontal leg 22 with a guiding hole provided therein, in which the respective rod l8 slidably fits, and an upper horizontal leg 23 which is shorter than the lower leg 22 and has an approximately semi-circular depression in its end, in which depression the respective rod I8 is slidable. The lateral members 2| of the sliding device are furthermore connected by means of a bar 24 so that said device may obtain suflicient stability.

At 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| surrounding with clearance a shaft 32 rotatably mounted in the tWo paper guide gables 4, and is rotatably mounted on said shaft 32. 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| and the shaft 32, is fixed. The other end of the sleeve 3! is rotatably mounted on 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. 5) is non-rotatably fixed to the shaft 32 inside the frame gable 4 situated between the hand wheel 38 and the gear 35 and, together with a pawl 45 cooperating with the ratchet wheel, prevents the spring from turning the shaft 32 in the opposite direction after the typist has let go the hand wheel 38. On loadin the spring 35 the sliding device 29 to 24 with the roller I9 is lifted until it bears against the upper brackets 11 for the rods 18. The pawl 49 is pivotally mounted on an axle fixed to the adjacent frame gable 4 and acted upon by a torsion spring 42 tending to swing the pawl into engagement with the ratchet wheel 39 (Fig. 5). To be able to de crease the tension of the spring 35, when desired, 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| of the sliding device in engagement with the upper brackets I1 for the rods l8 and allows a lowering of the sliding device and thus of the roller [9 down to the lower brackets 11 for the rods l8 against the action of the spring 35, which is so dimensioned that the force necessary for lowering the sliding device and thus of the roller I9 is substantially constant over the whole path of motion of the sliding device.

Near its lower end 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. end portion 45 of the paper web g'uide there is To thisv connected a portion extending first downwards and then upwards in a soft curve, which lastmentioned portion merges into a vertically upwardly directed portion 41 of the plate, which extends between and is fixed to the two frame gables 4. In the portion 41 of the plate there is provided 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. Behind the recess of the plate portion 41 there is arranged 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). On each side of the recess 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). On the 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. Such 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. In the present case, 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. From the guide members 55 the paper webs 54 are led in a soft curve down below the lower edge of the blade 48 and upwards between the blade and the flap 5i behind the leaf springs 52 and in front of the transverse stay 6 up around the roller 19 and down to the platen 56 of the typewriter I.

After the end of the paper webs 54 has been caught by the platen 56, 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. However, 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,

but will detach itself from the portion 46 and vice 26 to 24 supporting the roller I9 are:un-

wound from the winding drums 27 when the roller and the sliding device is lowered. In doing so, said drums rotate and, through the gears '29 and 30, cause the sleeve 3| and the end of the spring 35 attached to the sleeve to rotate in relation to the shaft 32 which is retained by the ratchet wheel 69 and the pawl 66 and 'on which the other end of the spring is attached.

To enable further feed of the paper webs 54 an automatically operating releasing means should be provided. In the embodiment according to Figs. 1 to 6 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. Furthermore, the arms 5'! are connected by means of a transverse bar 66 at a distance from the bearing pins 58. One end of an upwardly extending link 6! is pivotally mounted on the bar 66, the other upper end of which link is held in contact with the sleeve 6[ by a torsion spring 62 wound around the bar 66. The upper end of the link 6| bears against the sleeve 3! between a pair of flanges 63 nonrotatably fixed to the sleeve, and has a recess 64 which a pin 65 extending between the flanges 63 is adapted to engage with.

The above described release mechanism functions as follows. When, during the feed of the paper webs by rotation of the platen 56, a folding and/or tearing line has reached the lower edge of the blade 48 and has been caught thereon, 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. Thereby 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'! downwardly, the release bar 59 being lowered towards the paper webs 54 hanging between the lower edge of the blade 48 and the upper end of the paper web guide portion 45, whereby said a bar 56 presses the paper webs downwardly into contact with the softly curved portion 46 of the paper web guide, as appears from Fig. 4. Thereby the blade 68 looses its catch on the paper webs 54 so that the folding and/or tearing line, which was before caught thereon, may freely move upwards in front of the blade. When the roller I9 is again lifted, the release bar 59 will be returned to its inactive position shown in Fig. 3by the link 7 6| since the spring 35 rotates the sleeve 3| clockwebs 54, two carbon papers sheets 66 being .in-

terleaved with them, as appears especially clear- 1y from Figs. 3 and 4. 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 distance between two successive folding and/or tearing lines on the paper webs 54 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. A spring 8| tending to press the plunger into engagement with the ratchet wheel '13 is inserted in said sleeve 86.

The described attachment, shown in Figs. 1 to 6, 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. When,

I on feeding the paper webs, a folding and/or tearing line reaches the lower edge of the blade 48 the paper webs 54 will, however, be retained to the blade and thus to the paper guide frame so thata further feeding of the ends of the paper webs 54 by. rotation of the platen 56 forces the roller H to be lowered against the action .of the wheels "springsfipwhereby also the wheels" supporting the suspension wires'iS of theslide 69 are lowered,

which entails that the'slide 6e slides downwardly :along the guiding flanges 12, so that the lower ends of the carbon paper sheets 66 are caught between .the platen 53 and the pressing rollers 82. On further feeding of the paper webs 54, the

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. a position, so that the folding and/or tearing line retained by the blade 48 is released therefrom, 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.

When the described typed paper sheet is ready (theparts occupying'then the position shown in Fig. 4) 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.

Then the typist causes the pressing rollers 32 again to press the paper webs as against the plateniefiand rotates the platen 56,

for feeding the paperwebs'past the platen until thenext folding and/ortearing line is caught on the lower edge of the blade '68 as previously described. The feeding of the paper webs 54 is continued for a short distance untilthe folding and/ or tearing line between the paper. sheettyped and the next paper sheet of the paper webs has been moved altogether past the platen 56, whereupon the paper sh et typed is torn off. Thereafter the typist immediately proceeds with the typing-of the next paper sheet, the course 0 operation described above beingrrepe'ated It appears from the foregoing that'the described attachment .functions completely automatically and that/the typist-need only type the.

paper sheets successively and perform the described manipulations with the lever :of the machine to release the platenand feed the paper webs by rotation of the platen. On the other hand the typist does not at all need to operate When the release bar 59 reaches 8 .Tany-par't'ofithe :described type -.writer attachment .for permitting'the typing andobtaining of copies .on paper webs as distinguished from-what has hitherto been the case in known attachments of .a similar kind.

.During the typing of the successive paper sheets 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.

The above described means for retaining the paper webs to, and'releasing them from, the paper guide 3 may be replaced by altogether other means having the desired function, without departing from the scope of the invention.

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.

The attachment shown in 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. Between the frame gables '5 of the attachment a plane plate 35 extends, which has an obliquely rearwardly and downwardly directed extension 85 serving as a paper guide. In 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. Like the arms 51 in the embodiment according toFigs. 1 to 6 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.

and pressedforwardly to the position shown by -means ofifull lines in;Fig. '7, when the paper webs are straightened out between the holder pins88 and the type-writer platen (not shown), and spring backwards to the position shown in Fig. 7 by means of dash and dot lines when the paper webs are released from the pins 88, said springs moving the paper webs a small distance so that the perforations 84 with which the pins 88 were engaged are not registering any more with the holes 8? in the plate 85, whereby the springs 88 cannot be engaged with them any longer.

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. At the bottom of the frame gables there are provided 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.

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. In the present case 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. 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! having two diametrically opposed notches for engagement with a latch pawl Hi2 mounted on the lug 5a. A draw spring I03 tends to hold the latch pawl an in contact with the ratchet wheel Iiii. Consequently the toothed wheel 95 will be prevented from rotating after each rotation through half a revolution, so that the paper webs will be retained to the paper guide frame after each feed through a paper sheet length. To release the paper webs there is used in the present case, too, the link described in connection with Figs. 1 to 6 and so connected with the latch pawl l 92 as to swing it away from the ratchet wheel Elli, when the roller 89 (not shown in Fig. 9) is lowered.

In the attachment according to Fig. 9 there are also used leaf springs 95 fixed to the guide plate if!!! for moving the paper webs, after their release, through a small distance, the toothed wheel 99 being rotated thereby, so that the latch pawl I92 when being lowered towards the ratchet wheel it! cannot any longer be engaged with the same notch as it was engaged with before the lifting or release of the paper webs.

At last it should also be pointed out that 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.

What I claim and desire to secure by Letters Patent is:

1. 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 the paper webs from said frame.

2. 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 webs from said frame.

3. 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, 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 webs from said frame, and resilient means urging said member to its position most remote from the typewriter platen.

4. 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 paper web supply approximately when a paper sheet arrives at the platen, and releasing means operable by said member during its movement for automatically releasing the paper webs from said retaining means during the movement of a paper sheet pastthe platen.

5. 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 blade edge, and releasing means operable by said member during its movement for automatically releasing the paper webs from said blade edge during the movement of a paper sheet past the platen.

6. 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,

12 movable, member on said frame, which is movable inapath, 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 thecarbon 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 curve past said blade edge so that the paper webs engage with said blade edge when a folding line on the paper'webs reaches said blade edge, a rod extending transverse in relation to the paper webs on said frame adjacent said blade edge, and a mechanism operating in response to movement of said movable member in relation to said frame for moving said rod so'that' it operates the paper'webs within the range of said curve for cancelling the engagement between said blade edge and the folding line on the paper webs caught by said blade edge.

'7. 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 paper web supply approximately when a paper sheet arrives at the platen, and releasing means operable by said member during its movement for automatically releasing the paper webs from said retaining pins during the movement of a paper sheet past the platen.

8, 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 said toothed wheel through a certain angle during the feed of the paper webs to the platen approximately when a paper sheet arrives at the platen, and releasing means operable by said member during its movement for automatically releasing said toothed wheel from said locking means during the movement of a paper sheet past the platen.

9. 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-

leasing 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, and 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 thus from said guide. 7

10. 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 platen for operating said releasing means for releasing the paper webs from said retaining means and thus from said guide.

11. 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 thus from said guide, and resilient means urging said member to its position most remote from the typewriter platen.

BERTIL FOLKE SPRINCHORN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,995,087 Barker Mar. 19, 1935 2,000,641 Jensen May 7, 1935 2,026,845 Pfeifier Jan. 7, 1936.