US1237319A - Type-writing machine. - Google Patents

Description

B. P. FORTIN.

TYPE WRITING MACHINE.

APPLICATION mu) JANMIZ. 1916.

Patented Aug. 21, 1917.

2 SHEETS-SHEET l.

B. P. FORTIN.

TYPE WRITING MACHINE.

APPLICATION FILED JAN. 12. are.

Patented Aug. 21, 1917.

2 $HEETSSHEET 2 INVENTOR 57% WITNESSES $7M 6mm J M ATTO NEY.

lid

UNITED STATES TENT OFF BENJAMIN IP. FORTIN, F

HARTFORD, CONNECTICUT, ASSIGNOB TO UNDERWOOD TYPE- WRITEB COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPE-WRITING rmomnn.

Specification of Letters Patent.

Patented Aug. 2B, 1917.

Application fiIed January 12, 1916. Serial No. 71,606.

writig machines for writing upon a num ber of superposed webs or continuous sheets, especially those which are intended to be torn off in sections from the body of the web, as, for example, when the webs comprise a series of printed forms, each adapted to be removed when the typewriting thereon is completed. In such work it is desirable to employ ink ribbons or carbon sheets interleaved with the webs for making the duplicate copies. A machine of this eneral character is shown and described in the patent to Wernery & Smith, No. 1,132,055, dated March 16, 1915, In that machine, after a section of web, to compose a printed sheet, has been written, the platen is shifted away from the usual feed rollers to release the web and the interleaved carbon sheets; whereupon, by means of a carbon sheet holder, the carbon sheets are drawn back along the web into position thereon for the printing of the next web section; the web itself being drawn forward a measured distance for removal of the printed section thereof, and the next imprinted section thereof being positioned, with the carbon sheets therein, for the printing operation. The same carbon sheets are thus used over and -over in the same; web form.

In certain machines of this general class,

the devices for holding the carbon sheets are light, flexible strips of metal, or fingers, to each of which a sheet of carbon is attached, and which are stepped, or set up, one above the other, to allow space for'the plies or folds of the web between the same, andto permit of easy return movement of the carbon sheets over the web in replacing the carbon sheets.- In certain of such machines those holding strips or fingers are provided at their free or distal ends with cutters for severing from one another the plies of the web, in the section or length thereof next to be written upon, as the carbon sheet holders are moved back along the web. It is desirable to have the holding strips of thin and light material; yet, if thus rendered sufliciently flexible, they may be bent or drawn onto the web, in such a manner as to bind and tear the Web when moved along the web in replacing the carbon sheets; that is to say, unless provision to the contrary is made. An object of the present invention is to provide means for maintaining the proper position and spacing of such flexible holding clips, to prevent binding and injury to the web when the carbon sheets are re-seton the web, or when the plies of the web are .cut apart as described. In the preferred embodiment of this feature vided at or near their free or distal ends with depending or projecting beads or lugs which bear upon fixed supports, or which may bear upon the adjacent clips or fingers, thus preventing movement of the'clips into the web, and maintaining the clips spaced at proper distance apart, when the clips are moved backward over the web.

In some of the machines of this class, the carbon sheetholding devices are detachably secured as a unit to a cinriage,- so as to be interchangeable thereon; "the purpose being to enable the operator to remove such holder with the web and carbon, sheets in place thereon, .and to substitute another such holder with a web of different forms, and with carbon sheets already interleaved therewith; thus avoiding the delay which would be caused on every such change, by removing the carbon sheets from one web and placing them in another web. A feature of the present invention is an improved means of locking the interchangeable holders to the carriage, and of releasing the same from the carriage when desired. In the preferred form of the invention this look consists of a blade pivoted on the carriage and adapted of the invention, the holding clips are proto be swung into and out of a retaining means of which the proper throw of the holders in re-positioning the carbon sheets on the, web, after a form sheet thereof has rails; and the'stop is'preferably adjustable along such rail, and is locked to the same, or released therefrom, by a simple and novel form of vise or gripping device for this purpose.

Another feature of the invention relates to the means whereby the table, on which the carriage for the carbon sheet holder moves, is attached to the platen carriage, to have lettenfeed and return movement therewith, but is nevertheless so cushioned that the platen carriage does not receive mjurious shocks from this relatively heavy table when the two arethrown a distance together. This attachment has also the advantage that fine fitting of parts is obviated. Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure l is a perspective view of the invention as applied to'an Underwood typewriting machine.

Fig. 2 is a cross sectional view'of the locking device for the web-holding finger at the rear of the table.

Fig. 3 is a view in lon 'tudinal cross section through the device y which the table is connected to the platen carriage.

Fig. 4: isa side elevation, partly in side elevation, and partly in cross section.

Fig. 5 is a perspective view 'of one of the interchangeable plates or carbon sheet holders.

Fig. 6 is a perspective view of the carriage for the carbonsheet holders, the looking devices for securing the holder to the carriage being also shown.

Fig. 7 justable stop for the. carbon sheet holder carriage.

Fig. 8 is a perspective view of one of the adjustable lateral gages or'guides for the web, located on the holder of Fi 5.

Fig. 9 is a perspective view 0 the ga e or guide on the paper shelf'for alining the web before the same is cut.

Referring to the drawings, the platen 10 has an axle 11 which is journaled'in a frame having end ieces-or arms 12 fast to a rockshaft 13 heshaft 13 is journaled in the end plates 1 10f the platen carriage. The frame for which the shaft '13 serves as a is a perspective view of the adpivot, is normally held in Fig. 1 position, with the platen down against the usual feed rolls 15 and 16. It is swung from its normal or printing position, as shown in the patent to Wernery and Smith, No. 1,132,055, by means of an arm or handle 17, which latter is also fast to the shaft 13. For locking the platen frame in printing position, the handle 17 carries a pin 18 adapted to be engaged by a hook 19 pivotally mounted on a bracket 20 on the left-hand end plate 1 1 of the platen carriage. A spring 21 engages the hook and the bracket to hold the hook in platen locking position, and to return the hook. to such position when free to do so. The nose of the hook is shaped at 22 to permit the pin 18 to cam it. backward until the pin can pass under the nose, thereby making the locking operation automatic when the platen frame is swung down to normal position. A tooth 23 on the hook may serve to determine the return throw, and normal position of the platen, in conjunction with a pin or stop 24 on the righthand end carriage piece 14, against which She arm 12 strikes when the platen is thrown own.

To effect the line-space feed or rotation of the platen, there are provided the usual hand wheel 25 and ratchet wheel 26, both fast to a short shaft 27 mounted to rotate in the left-hand end piece 14 of the carriage. In printing position, the shaft 27 is concentric with the platen shaft 11. The ratchet '26 is actuated by a pawl 28 on a slide 29 which may beoperated, in Underwood typewriting machines, by a line-space lever '(not shown). A spring pawl 28*, holds the ratchet wheel and platen against accidental displacement. The driving connection between the shaft 27, whose axis does not shift, and the platen axle 11, which swings from one to another position, consists of gears 30, 31 and 32. The gear 30 is fastto the shaft 27; the gear 31 is fast to the platen shaft 11, and 18 of the same size and number of teeth as gear 30; and the gear 32 is loose on the shaft 13 around which the platen swings, and has a face of sufficient width simultaneously to mesh with gears 30 and 31. A driving connection between the shaft 27 and the platen is thus maintained.

In the patent to Wernery & Smith, above referred to, it is shown that in the o eration of removing a printed length oft e web,

and in readjusting the web for printing the next length, the platen is swung up from printing position to a position away from the feed rolls, so that the web no longer wraps around the platen, butmay be moved freely in substantially a straight line from th'e'back to the front of the machine. When the platen is in this position, the carbon sheets between .the plies or folds of the section of the web to be removed, are drawn back into the length or section of web next to be printed; and, after removal of a length of the web, the platen is returned to its normal position'against the feed rolls.

The web is preferably in a single piece, fan-folded longitudinally, to provide for several copies when carbon sheets are interleaved with the folds. It may also be in crosswise fan-folded condition before being fed into the machine to permit of compact ness and convenience in handling, or it may be fed from a roll. It is fed into the machine over a bar 33 at the rear. of a table 34, shown as formed of tubing. The rear bar 33 is connected with a front bar 35 by side bars 36 and intermediate bars 37. The front bar 35, (see Fig. 3), is hollow, and through it passes a rod 38 carried by cars 39 on brackets 40 on the platen carriage. Screws -11 secure the table against longitudinal displacement on the'rod 38. Springs -12, between the ends of the bar 35 and the cars 39, hold the bar 35 so that the table 3% may have letter feed and return movement with the platen carriage, but nevertheless yield somewhat to act as cushions or shock absorbers for the table when the latter is thrown a distance with the platen, as for instance in tabulating. The length of the rod 38 is such as to permit some movement thereof relatively to the ears 39, to allow for this cushioning action, without disconnection of the rod 38 from the ears 39. The springs 42 also obviate the necessity of nicety of fitting of the bar 35 to the platen carriage. From the side rails 36 depend arms &3 carrying rolls 4A which ride. and support the table on a rail 45, carried by a framework 46, secured to, or forming part of the main frame of the machine.

The web 18 led across the table and over the front end thereof behind the platen, whence it is passed'down between the platen and the pressure rolls 16 and 15, and thence up across the printing line at the type T, and onto a paper shelf 48 forming part of the swinging platen frame carried by the arms 12. To the shelf 18 is secured a gage in the form of a bar 49, having adjustably mounted thereon a gage piece 50. The latter is a bent metal strip having openings through which the bar as passes, and having an offset portion against which the web can be drawn in measuring the length of the sheet to be cut from the web at the cutter 51. The cutter is shown as a blade fast to a sleeve 52 which is loose on the shaft 13. A finger piece 53, also fa'st to the sleeve 52, is used to swing the cutteragainst the web when a measured length of the latter is to be removed. A spring 54: holds the cutter in normal position away from the web, and returns the cutter to that position when the finger piece 53 is released. When the platen is thrown up to release the web, and the web is drawn forward to the gage piece 50, preliminary to cutting, the hold of the several parts on the web is released, with the consequence that the web in front of the platen may be rocked or turned from true position, and may be cut other-than squarely, or perpendicularly to the side edges of the web, unless care is used in alining the leading edge at the gage, or unless some device is employed for assisting in positioning the web. F or this latter purpose there is secured to the under side of a brace or cross piece 55, on the swinging frame, a guide 56 which is brought up and over the top of the paper shelf, and presents at the front of the latter a blade or guiding portion 57 (see Figs. 4: and 9) for the side edge of the web. The guide 56 has a hole through it to receiveany one of several screws 58, positioned at intervals along the brace 55, according to the width of web employed; and a thumb nut 59 threads onto the screws for d'etachably securing the guide in selected position. Eats 60 on the guide, by engagement with the edge of the brace, prevent the guide from being tipped out of correct position, and aid in the proper setting of the guide.

It has been stated that the web is folded longitudinally so that a plurality of copies may be made at a time by the use of carbon sheets. These carbon sheets, as above stated. are drawn back from the written portion of the web, into the length thereof next to be written, at the timethe web is released, and before it is out. For permitting forward line-space feed of the carbon with the web, and for withdrawing the carbon sheets from the written to the next unwritten section of the web, there is provided a carriage to which the rear ends of the carbon sheets are attached. This carriage, (see Figs. 1 and 6) consists of a rectangular plate 61, cut away at 62 for lightness, and having at each corner an car 63 on which is mounted a grooved roller 64. The rollers 64 ride on rails 65 which are attached by screws to the tops of the side bars 36 of the table. The carbon sheets are not directly attached to the main body of the carriage 61, but are attached to interchangeable plates 66, (see Fig. 5), near each side of which is a dowel 6? which, when the plate 66 is properly placed on the carriage 61, registers with, and passes through, a hole 68 in the carriage plate 61. The dowels 67'are grooved at 69 below the plate 61, to receive blades 70 which carry finger pieces 71 by means of which the blades may be swung on pivot pins 72, on the plate 61, into and out of interlocking engagement with the grooves 69 in the dowels, thereby serving as means for locking the plate 66 to the plate 61.

On the plate 66 at each side of the carriage is a stepped block 74. Fingers or clips to each of which one carbon sheet may be attached, are secured to the steps 76 of the blocks 74 by thumb screws 77 which also hold clamps 78 between which and the fingers 75 the rear edges of the carbon sheets are held. The fingers 75 are staggered; alternate fingers being secured to the same side of the carriage, so that the fingers may lie in the oppositely directed fan-folds of the web. The steps 76 space the several folds of the web so that the fingers which hold the carbon sheets may not bind the web. The web, therefore, as soon as it reaches the carriage 61 becomes interleaved with the carbon sheets, the rear edges of which are held and the front edges of which are free, except that they are clamped between the folds of the web at the platen by the pressure rolls l5 and 16. Release of this pressure, on lifting the platen, permits retraction of the carriage, with the carbon sheets, relatively to the web; and a handle 79 on the plate 66 serves as a means for throwing back the carriage 61. The handle 79 alsp serves as a means for lifting the plate 66 from the carriage 61 when the locking blades 70 are thrown out, so that one plate 66 with the web and carbons already in place thereon, may be substituted for another, thereby avoiding the delay of removing and replacing carbon sheets on the webs where a quick change from one web form to another is desired.

One of the rails 65 has scale or gage markings 80 thereon so that the backward throw of the carriage 61 may be accurately determined in accordance with the length of the form on the web, thus assuring proper positioning of the carbon sheets as the successive form sheets or lengths are removed. For example, if the form on the web be eight inches in length, the holder carriage should be returned to the graduation marked 8", in which event there will be no chance of cutting off part of the carbon sheets with the length of web about to be-removed. For stopping the carriage at the proper position on each return throw of the same, there is provided a stop 81, (see Figs. 1 and 7). The Fig; 7 form of this stop consists of a yoke 82 adapted to be set over the rail which bears the scale 80, and to he slid along the same to any desired position thereon. One part 83 of the yoke is grooved at 84 toreceive the inside rail edge. The outside edge of the rail engages a groove 85 in a shoe 85 on a plunger 86, which passes through the yoke to the outside thereof, and the end of which is adapted to be engaged by a cam 87 on a finger lever 88, pivoted at 89 to an extension 90 of the yoke. By throwing the finger piece 88 one way or the other, the plunger 86 is forced in, to grip the rail and lock the stop in place, or is released to permit readjustment of the position of the stop. The Fig. 1 form of the stop resembles the Fig. 7 form, except that instead of the plunger and cam lever, a screw 91 is threaded through one side of the yoke and may be turned inward by a handle 92 to bear upon a clamp piece or shoe 93 similarin its action to the shoe 85 on the plunger 86. A lug 73 on the carriage cooperates with the stop 81 to arrest the carriage.

In filling in forms in a fan-fold machine, the entries are sometimes long and sometimes short. If there are very man'y short entries, only one portion of the carbon sheet becomes used, and that is used so much that the sheet becomes worn out at that spot while the main portion of the sheet remalns practically unused and is wasted. The portion of the carbon which is to be used in writing the successive forms may be accurately predetermined without repeated attention on the part of the operator at every operation; and this is done by first setting the carbon sheet stop 81. Moreover, the initial position of the carbon may be shifted from an eighth to a sixth of an inch by slight readjustment of said stop 81, thereby bringing the lines of use of the carbons between the former lines of use, thus doubling the life of the carbons. All danger of the lower portions of the carbons being accidentally torn off with the written forms is eliminated, since the operator merely has to shift the carbons back as far as they will go.

Further substantial advantages are gained by providing a machine not only with interchangeable carbon-carrying plates 66, but also with the said stop 81, since different carbon-carrying plates may carry different lengths of carbons according to the work in hand; and the operator needs only to readjust the stop 81 for each substitution of carriers, and thereafter simply shift the carbons back as far as they will go and pay no attention to the length of the carbons or attempt to measure with his eye at each stroke the extent or backward shifting of the carbons. The scale 80 is an advantage, because where the operator has different lengths of carbons on different carriers, it is only necessary for him when substituting one set of carbons for another to shift the stop 81 to the corresponding position as indicated on the scale; and in each case he may also make a slight displacement of the stop as may become desirable to shift the lines of use in the same section of the carbon.

Side gages or guides for the web, in its passage across the table, are provided. One

set of these is carried by the carbon holding plate 66, and comprises L shaped members 9 1, the upri hts 95 of which form the web guiding sur aces. These L shaped members are carried by and are preferably integral with strips or plates 96, slotted at 97 for the passage therethrough of thumb screws 98, which are threaded into the backs of the stepped blocks 74. The screws 98 have shoulders 99 so that, by turning the screws in or out, the plates 96 may be clamped in set position, or may be released to be slid on the blocks 74 to any setting according to the width of the web. Flanges 100 on the blocks support the lower edges of the plates 96 to maintain the guide pieces 95 in vertical position. The plates 96 also have 0&- sets 101 at their ends which by engagement with the sides of the blocks 74:,prevent the plates 96 from being thrown inward against the screws 98 in such manner as to injure the latter.

Another set of lateral guides or gages for the web is found on a bar 102 rigidly supported by arms 103 from the rear, bar 33 of the table. These guides comprise upright plates 10f]: and 105, each fast to a sleeve 106 slidable along the bar 102, (see Fig. 2) The bar 102, which is shown as a tube, is perforated at 107 at intervals therealong to receive locking pins 108 which are shiftable in and out of the sleeves 106, and which, by projecting into the bar 102, hold the guides in place. Leaf springs 109- embrace the sleeves 106, and each hasone end fixedly secured to the sleeve by a screw 110. The springs are slotted circumferentially thereof at 111 for the passage therethrough of headed screws 112 carried by the sleeves. The heads of the screws 112 hold the underlying ends of the springs to the sleeves, but not tightly enou h to prevent free movement of the free on s of the springs circumferentially of the sleeve within the limits delined by the slots 111. The pins 108 also pass through circumferential slots in the springs, and are grooved or shouldered to receive or engage the springs, so that when the pin is pulled out, the spring is drawn with it, within the limit defined by the slot 111 and screw 112; so that when the pin 108 is released, it is drawn inward by the sprin and by the latter is held in place in the se ected hole 107.

The left-hand guide 105 has formed in conjunction therewith, a clamp which can i be turned down against the web to hold the web from slipping or being displaced when the carbons are being interleaved, or whenever the web is released from the platen and is not held by hand. This clamp consists of a finger 113 horizontally offset from the guide 105. The left-hand sleeve 106 is not onlyslidable along the bar 102, but may be turned thereon to bring the finger 113 to the web. The front of the bar 102,-at the lefthand side of the table, is also perforated at points 114, so that when the finger 113 is swung to web-engaging position it may be locked in such position by entry of the pin 108 in whichever of the holes 114 accords to the set position of the guide along the bar.

It has been stated that the web is preferably in a single piece, fan-folded for amultiplicity of copies. Along the side edges or folds, such webs are ordinarily perforated to facilitate separation of one copy from another of the written and separated form sheets or lengths. It has been proposed to effect this separation mechanically in the machine, and for this pur ose the free or distal ends of the clips or ngers 75, which hold the carbon sheets, have been provided with cutters 115 in the form of beads or pins which are rearwardly and inwardly inclined, and which cross the perforated edges or folds of the web. As the carriage 61is thrown backward for the writing of a new form, these cutters sever the web to separate the overlying folds thereof in'the section or length next to be written. The fingers 75 are light and flexible, and it is desirable that in their movement along the web, they do not catch and tear the Web by being drawn in on the latter. To prevent such binding and tearing of the web, each finger 75, instead of terminating at its distal end just beyond the edge of the web on that side of the table, is so lengthened that its distal end overlies that step 76 which is op- 'posite the step 76 to. which the finger is attached by the screw 77; and at such free or distal end, each finger 75 has on its lower surface, a head or spacing piece 116 which is adapted to engage the upper surface of the underlying step 76. The fingers are thus held at the correct distance apart, and also'against being drawn into the web when moved backward over the web.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, 1 claim:

1. In a typewriting machine, a platen, a table over which a web may be guided to the platen, a carriage movable on said table toward and from the platen, means on said carriage for the attachment thereto of transfer material to be used in conjunction with said web, means for shifting said carriage away from the platen to move the transfer material along the web to successive placements thereon, a graduated element on the table, and means to cooperate with said graduated element for redetermining the proper "movement to be given said carriage in so placing the transfer material.

2. In a typewriting machine, a platen, a table over which a web may be guided to the platen, a carriage movable on said table toward and from the platen, means on said carriage for the attachment thereto of transfer material to be used in conjunction with said web, means for shifting said carriage away from the platen to move the transfer material along the web to successive placements thereon, a rail on which the carriage has its line-space and return movement on said table, graduations on said rail for determining the proper return movement to'be given the carriage in replacing the transfer material on the web, and a stop shiftable along said graduated rail and lockable in selected position thereon to arrest the carriage on the return throw of the latter. 7

3. In a typewriting machine, the combi nation of a platen, a table over which a web may be guided to the laten, and means for regulating the wear 0 transfer material inserted between plies of the web, including a carriage movable on said table toward and from the platen, means on said carriage for the attachment thereto of transfer material to be used in conjunction with said web, means for shifting said carriage away from the platen to move the transfer material along the web to successive placements thereon, a rail onwhich the carriage has its line-space and return movement on said table, and a stop shiftable along said rail and lockable in selected positions thereon to arrest the carriage on the return throw of-the latter. v 4. In a typewriting machine, a platen, a platen carriage, means for effecting letterfeed and return movement ofthe platen carriage, a table over which work-pieces may be fed to the, platen, brackets on the platen carriage, a rod loosely supported in eyes in said brackets, a sleeve fast to said table and to said rod, and springs holding said sleeve and rod in normally fixed positionwith respect to said brackets, but yielding to cushion the table when the latter is thrown with the platen carriage.

5. In a typewriting machine, a platen, means for feeding a fan-folded web' to the platen, means for releasing the web from the platen, a table over which the web is fed to the platen, a carriage movable on said table toward and away from the platen, clips or fingers on said carriage for the attachment thereto of sheets of transfer material to be thereby held interleaved with the folds of the web 'so as to receive a line-space feed with the Web, means for'shifting the carriage away from the platen to move the transfer material back along the web to an other placement thereon when the web is released after a length thereof has been written, 'ineans on said clips or fingers for cutting or separating, one from another, for a distance therealong, the folds of the web when the carriage receives such return movement, and'means for preventing bindijig of said clips or fingers on the web as saidtable toward and away from the platen,

clips or fingers on said carriage for the attachment thereto of sheets of transfer material to be thereby held interleaved with o the folds of the. web so as to receive a linespace feed with the web, means for shifting the carriage away from the platen to move the transfer material back along the web to another placement thereon when the web is released after a length thereof has been written, means on said clips or fingers for cutting or separating, one from another, for a distance therealong, the folds of the web when the carriage receives such return movement, and separating devices carried by said clips or fingers for holding the same apart when said carriage receives its return movement along the web.

7. In a typewriting machine, a platen, means for feeding a fan-folded web to the platen, means for releasing the web from the platen, a; table over which the web is fed to the platen, a carriage movable on said table toward and away from the platen, flexible clips or fingers stepped from one another on said carriage for the attachment thereto of sheets of transfer material to be thereby held interleaved with the folds of the web so as to receive a line-space feed with the Web, means for shifting the carriage away from the platen to move the transfer material back along the web to another placement thereon when the web is released after a length thereof has been written, means on said clips or fingers for cutting, or separating, one from another, for a distance therealong, the folds of the web when the carriage receives such return movement, and lugs carried by said clips or fingers for holding the same from movement toward the web when said carriage receives its return movement along the web.

8. In a typewriting machine, a platen, means for feeding a an-folded web to the platen, means for releasing the web from the platen, a table over which the web is fed to the platen, a carriage movable on said table toward and away from the platen, flexible clips or fingers stepped from one another on said carriage for the attachment thereto of sheets of transfer material to be hereby held interleaved with the folds of the web soas to receive a line-space feed with the web, means. for shifting the carriage away from the platen to movethe transfer material back along the web to another placement thereon when the web is released after a length thereof has been written, and means for preventing binding of said clips or fingers on the web as the same are moved along the web on such return movement.

9. In a typewriting machine, a platen, means forfeeding a fan-folded web to the platen, means for releasing the web from the platen, a table over which the web is fed to the platen, a carriage movable on said table toward and away from the platen, flexible clips or fingers stepped from one another on said carriage for the attachment thereto of sheets of transfer material to be thereby held interleaved with the folds of the web so as to receive a line-space feed with the web, means for shifting the carriage away from the platen to move the transfer material back along the web to another placement thereon when the web is released after a length thereof has been written, and separating devices carried by said clips or fingers for holding the same from movement toward the web when said carriage receives its return movement along the web. e

10. In a typewriting machine, a platen, means for feeding a fan-folded web to the platen, means for releasing the web from the platen, a table over which the web is fed to the platen, a carriage movable on said table toward and away from thenlaten, flexible clips or fingers stepped from one another on said carriage for the attachment thereto of sheets of transfer material to be thereby held interleaved with the folds of the web so as to receive a line-space feed with the web, said clips or fingers being fixed at one end and free at the other end thereof, and extending in oppositely directed groups, into the oppositely directed fan-folds of the web, means for shifting the carriage away from the platen to move the transfer material back along the web to another placement thereon when the web is released after a length thereof has been written, means on said clips or fingers for cutting, or separating, one from another, for a distance therealong, the folds of the web when the carriage receives such return movement, and means carried by the free ends of the clips or fingers for supporting the same above the fixed ends of the adjacent fingers to maintain the spacing of the fingers when the carriage receives its return movement.

11. The combination with a platen, of means for feeding a work-piece in a plurality of plies to the laten, means for holding transfer material etween the plies of the work-piece as the latter is fed to the platen and for shifting the transfer material backward along the work-piece to successive placements thereon, a carriage on which said holder is detachably mounted to permit of interchangeability of such holders, with the work-piece and transfer material thereon, and a latch for locking the holder to the carriage.

12. The combination with a platen, of means for feeding a work-piece in a plurality of plies to the platen, means for holding transfer material between the plies of the work-piece as the latter is fed to the platen and for shifting the transfer material backward along the work-piece to successive placements thereon, a carriage on which said holder is detachably mounted to permit of interchangeability of such holders, with the work-piece and transfer material thereon, and means movable while the holder is in place on the carriage for locking the holder to the carriage and releasing the same therefrom.

13. The combination with a platen, of means for feeding a work-piece in a plurality of plies to the platen, means for holding transfer material between the plies of the work-piece as the latter is fed to the platen and for shifting the transfer material backward along the work-piece to successive placements thereon, a carriage on which said holder is detachably mounted to permit of interchangeability of such holders, with the work-piece and transfer material thereon, and a pivoted finger on the carriage for locking the holder thereto. 4

14-. The combination with a platen, of means for feeding a workpiece in a plurality of plies to the platen, means for holding transfer material between the plies of the work-piece as the latter is fed to the platen and for shifting the transfer material backward along the work-piece to successive placements thereon, a carriage on which said holder is detachably mounted to permit of interchangeability of such holders, with the work-piece and transfer material thereon, a dowel on one of said detachably connected elements interlocking with holes in the other of said detachably connected elements, and a movable finger on the element having said holes therein for engaging said dowel to lock and unlock said elements.

15. The combination with a platen, of means for feeding a work-piece in a plurality of plies to the platen, a table over which the work-piece is fed to the platen, a carriage movable on said table toward and away from the platen, a detachable holder on said carriage for holding transfer material between the plies of the work-piece as the latter is fed to the platen and for shifting the transfer material backward along the work-piece to successive placements thereon, and guides on said holder for the side edges of the work-piece.

16. The combination with a platen, of means for feeding a workpiece in a plurality of plies to the platen, a table over which the work-piece is fed to the platen, a carriage movable on said table toward and away from the platen, a detachable holder on said carriage for holding transfer material between the plies of the work-piece as the latter is fed to the platen and for shifting the transfer material backward along the work-piece to successive placements thereon, and guides on said holder for the side edges of the work-piece, said guides being adjustable to accommodate work-pieces of different widths.

17. The combination with a platen, of means for feeding a work-piece in a plurality of plies to the platen, a table over which the work-piece is fed to the platen, a carriage movable on said table toward and away from the platen, a detachable holderon said carriage for holding transfer material between the plies of the work-piece as the latter is fed to the platen and for shifting the transfer material backward along the work-piece to successive placements thereon, guides on said holder for the side edges of the work-piece, and guides on the receiving end of the table for the side edges of the work-piece.

18. In a typewriting machine, the combination of a platen, a web guide, and means for regulating the wear of transfer-material inserted between plies of the web, including a carriage movable toward and from the platen, means on said carriage for the at tachment thereto of transfer material to be used in conjunction with said web, means for shifting said carriage away from the platen to move the transfer material along the web to successive placements thereon, and a stop shiftable to selected positions to arrest the transfer material carriage on the return throw of the latter.

19. In a typewriting machine, the combination of a platen, means whereby a web may be guided to the platen, and means for regulating the Wear of transfer material inserted between plies of the webs, including a carrier movable to accommodate the movement of the interleaved transfer material to the platen, means on said carrier for the attachment thereto of superposed sheets of transfer material to be used in conjunction with said web, means for moving said carrier relatively to the platen to move the transfer material along the web to successive placements thereon, and shiftable means to cooperate with said carrier to vary the place of wear upon the transfer material by variably predetermining the initial position of said carrier.

BENJAMIN P. FORTIN.

Witnesses:

LANA M. FORTIN, W. M. BYORKMAN.

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