US1825148A - Typewriting machine - Google Patents

Description

Sept. 29, 1931.

F. A. HART TYPEWRITING MACHIIINE 1926 5 Sheets-Sheet 1 .F'iled Oct. 22

INVENTOR A TTORNEY FREDERICK A. HART BY 1 WITNESS ES $4M; w

Sept. 29, 1931. F. A. HART TYPEWRITING MACHINE 1926 5 Sheets-Sheet 2 Filed 001; 22

INVENTOR FREDERICK A. HART WITNESSES ATTORNEY Sept. 29, 1931. F. A. HART TYPEWRITING MACHINE 5 Shets-Sheet s Filed Oct. 22

||||l|I lllllllll I I l I INVENTOR FREDERICK A HART ATTORNEY WI TNESSE Sept. 29, 1931. HART TYPEWRITING MACHINE Filed Oct. 22, 1926 5 Sheets-Sheet 4 R m m m FREDERICK A .HART BY WITN ESSES Z w'fiwm A TTORNE Y Sept. 29, 1931. F. A. HART TYPEWRITING MACHINE Filed Oct. 22

5 Sheets-Sheet 5.

IN VENTOR FREDERICK A.HA RT A TT ORNE Y Patented Sept. 29, 1931 UNITED STATES PATENT OFFICE FREDERICK A. HART, NEW BRITAIN, CONNECTICUT, ASSIGNOR TO REMINGTON WRITER COMPANY, OF ILION, NEW YORK, A. CORPORATION OF NEW YORK TYIPEWRITING MACHINE Application filedflctober 22, 1926. Serial No. 143,382.

My invention relates to typewriting or like machines, and more particularly to so-' called billing mechanism therefor.

The machine in which the features of the 5 present invention are embodied has some of the same general objects in view as the conconstructions disclosed in each of the following applications and patents: Frederick A. Hart, filed July 3, 1926, Ser. No. 120,403 (now Patent 1,650,351) S. L. Walsoe & J. P Hill, filed July 8,1926, Ser. No. 121,134 (now Patent 1,650,673) S. L. Walsoe, filed Sept. 2, 1926, Ser. No. 133,228 (now Patent 1,663,- 362) C. E. Burns, filed July 13, 1926, Ser. No. 122,239 (now Patent 1,647,854). The present invention is intended primarily to improve the construction disclosed in the said patent of Walsoe, 1,663,362, and includes Various-features which are combined with those disclosed in said patent. The present invention also includes features that are equally applicable to the construction disclosed in the patents mentioned above,

- showing the parts in full lines as they are with a view to improving them.

More specifically stated, the objects of the present invention are as follows:

(1st) To convert the so-called two-sheet biller of the Walsoe atent 1,663,362 into a so-called three-sheet iller, by providing a 30 third set of paper feed rollers and means for effectively controlling them for the purposes for which they are employed.

(2nd) By providin simple and effective adjusting means by w ich the positively applied paper feed rollers may exert more or less force at each application thereof.

(3rd) To provide means for automatically locking the paper feed .rollers which coact with the register sheet in ineffective position. 7 v

(4th) To provide means for temporarily limiting the movement of the positively applied paper feed rollers away from the platen in a;.rposition intermediate the full extent of releasing movement thereof.

(5th) To provide means whereby the movementof a finger piece in one direction is effective tomove two sets of feed rollers away from the platen and a movement of the finger piece in the opposite direction is effective to apply one set only of said feed rollers to the platen.

(6th) To provide means for supporting the ledger sheet in a manner which will more readily facilitate the introduction of a comparativel% thin bill or statement sheet.

(7th) 0 provide detenting means for preventing an accidental displacement from the extreme releasing position of the paper feed rollers which automatically control the line indicator, etc.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts, and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the difierentviews:

Figure 1 is an enlarged, detail, fragmentary, side elevation of a portion of the machine with parts broken away, the view normally disposed when the machine is in condition for writing.

Figure 2 is a like view of some of the parts disclosed in Fig. 1, but showing such parts as they appear when the machine is conditioned to receive rearwardly introduced work sheets inserted from in front of the platen.

Figure 2* is a detail, fragmentary, side elevation showing a part of the ribbon vibrator supporting and actuating mechanism.

Figure 3 corresponds in part to the showing in Fig. 2 exceptthat the forward feed rollers are shown released from the platen while the automatically controlled deflector, line indicator and ribbon vibrator have not been disturbed from the position they nor- 1 mally occupy.

Figure 4 is a full size, fragmentary, top plan view of a portion of the machine with the parts shown in normal position.

Figure 5 is an enlarged, detail, fragmentary, top plan view showing the left-hand end of the front feed-roller spindlathe associated guide therefor and the spring detent which coacts therewith.

\ Figure 6 is a fragmentary, vertical, transverse sectional view of the carriage, taken on the line 6 6 of Fig. 1 and looking in the direction of the arrows at said line. T, Figure 7 is an enlarged, detail, fragmentary, perspective view of the improved means for adjustably connecting one end of the wire line-indicator to its supporting arm.

Figure 8 is a fragmentary, detail, perspective view of the center of secondary feed rollers and the associated means for mountingand controlling said rollers Figure 9 is a detail, perspective view of the double deflector together with the parts carried thereby and some of the parts associated therewith.

Figure 10 is an enlarged, detail, transverse sectional view showing a portion of the double deflector and manner in which it coacts with various work sheets.

Figure 11 is a detail, fragmentary, perspective view, showing the parts by w ich one of the guides for the forward feed rollers is adjustably supported.

Figure 12 is an enlarged, detail transverse sectional view showing the means for ad justably supporting the double deflector in normal position; the section being taken on the line 12-12 of Fig. 4 and looking in the direction of the arrows at said line.

Figure 13 is an enlarged, detail, fragmentary sectional view of the left-hand end of the spindle for supporting the top feed rollers, together with the associated bearing for this end of said spindle; the section being taken on the line 13-13 of Fig. 1 and looking in the direction of the arrows at said line.

Figure 14 is an enlarged, detail, transverse sectional view of the same, taken on the line 1414 of'Fig. 13 and looking in the direction of the arrows at said line.

The machine in which the features of the present invention are shown embodied is a Remington bookkeeping machine, model N0. 23, equipped with automatic carriage return mechanism such as disclosed in my Patent No. 1,567,590, dated Dec. 29, 1925. However, I have shown only so much of said machine, modified to include the toggle controlled paper feed mechanism, etc., of the Walsoe patent hereinbeforereferred to, as is necessary to illustrate my invention in its inclusion therein. It should be understood, however, that the invention is not restricted to embodiment in said machine but is of 'ggperal application wherever found availa e.

As in the machines of the said patents and applications hereinbefore referred to the present machine is capable of a wide i range of uses in connection with various where two or more work sheets are to be correlated in the machine and printed at a single operation. However, I do not deem itnecessary to describe specifically the many different forms of billing operations in which the machine may be used. It is sufiicient for an understanding of the present invention to specifically describe one mode of billing that may be successfullyl out with the aid of the present mac ine, and perhaps briefly refer to some of the various other methods in connection with which the machine may be employed.

One method of using the machine, which will be specifically referred to, is its employment for simultaneously, or at one writing, making out a statement, making corresponding. entries on the ledger sheet carrying the account, and on a record or register sheet which receives the various entries written on all of the individual statement and ledger sheets. In the example referred to the register sheet and its accompanying carbon sheet remain in the machine. Means are provided to enable the ledger sheet and its accompanying carbon sheet to be quickly introduced and properly positioned to re ceive the requisite entries without disturbing the previously introduced register sheet and companion carbon sheet. Means also are provided for then quickly entering a statement sheet into the machine in front of the platen and accurately positioning it in proper correlation with the previously introduced ledger sheet and the printing line. The entries may then be made on the statement sheet and these will be transferred through the interposed carbon sheets to the ledger and register sheets. If desired, additional entries may be made on the ledger sheet which are not to ap car on the statement or register sheet. T e statement and ledger sheets are then rapidly withdrawn from the machine without disturbing the register sheet and its companion carbonsheet and another ledger sheet and statement sheet may then be quickly introduced, as before, and so on.

A line spacing operation effected by the return of the carriage after writing a statement and making the corresponding entry on the ledger and register sheets, advances the register sheet in position to receive a manifold copy of the next entry on the register sheet. I

With the foregoing general explanation of the purpose and operation, I will proceed to describe the invention as it is embodied, in the present instance, in said hereinbefore mentioned Remington machine.

The frame of the machine includes the usual top plate 1 supporting fixed guide rails 2. The carriage or truck comprises front and rear guide or cross bars 3, united by carried loo end bars 4 and 5. The guide rails 2 and cross bars 3 are oppositely grooved to receive crossed anti-friction rollers 6, by which the carriage is supported. in the usual manner to travel from sideto side of the machine over the top plate 1. c

A cylindrical platen 7 is mounted in the usual manner in a platen frame comprising the rigidly connected end plates 8 and 9; the platen frame being connected to the carriage by the usual shift links 10 and 11. In the present instance, however, I contemplate writing only with upper case characters and the platen is, therefore, preferably Held in the upper case position. This may be readily done by screwing up the lowermost case-shift limiting screw-stops 12, thereby holding the platen shaft, or the buffer springs 13 which surround it, against the upper-case limiting stops 14. This brings the printing line on the platen to a position where the uppermost types 15 on the usual type bars 16 will register therewith.

A ribbon vibrator 17 is mounted to slide up and down in the usual manner on a type bar center guide 18 secured-to the type bar segment 19. The vibrator is actuated at each printing operation by the usual mechanism (see Fig. 2), which includes an arm 20. Said arm is pivoted at 21 on a shiftable carrier or support 22 mountedon parallel links 23. A contractile spring 24 tends tolift the shiftable support 22, and causes an anti-frictionroller 25-carried thereby to bear upward against the lower edge of a bar 26. This bar is secured to the carriage and extends substantially throughout the length .thereof; In the usual Remington machines the purpose of this construction is to cause the ribbon vibrator to be shifted up and down with the platen in the case shiftingmovements of the latter. In the present construction there is nosuch case shifting movements of the platen but the construction, nevertheless, lends itself to the accomplishment of another result which will hereinafter appear.

As in the construction disclosed in said Walsoe patent, it is desirable when introducing a work sheet backwardly into the machine tolower the ribbon vibrator from its-normal, Fig. 1, position. This is in order to enable the front paper deflector to be more conveniently moved to effective position, as shown in Fig. 2. In the present construction I 'haveemployed the same means that are disclosed in said Walsoe I patent for effecting this result. Thus, as

in the prior construction, a bracket arm 27 extends forward from the shiftable support 22 and carries an anti-friction roller 28 at the upper end thereof. A rock shaft 29 extends throughout the length of the carriage and ismounted at its ends in bearing openings in the end plates 8 and 9 of the platen frame. This roclg shaft29 carries a plate 30 Y which extends substantially throughout the len h thereofand is bent down at its forwar edge to form a flange 31 which coacts with the anti-friction roller 28. When the rock shaft 29, and the plate 30 carried thereby, are shifted by means to be hereinafter described, from the Fig.1

to the. Fig. 2 position, the shiftable sup ort 22 will belowered against the power 0 its spring 24 effecting a corresponding lowering of the ribbon vibrator 17.

Coming now to the means for controlling and guiding the work sheets it will be observed in the first place that there are no paper feed rollers employed beneath the platen, such rollers as are employed being flectors conform to the curvature of the platen or are substantially concentric therewith and extend substantially throughout the length of the platen. As thus constructed there are two separate channels provided, one of which is the open channel 36 between the two deflectors and which is bounded at its ends by separating members 134 and 35, either or both of which may constitute side guides or gages for cooperation with a work sheet or sheets introduced into the channel 36. The other separated channel 37 is provided between the under surface of the platen and the upper deflector 32. The forward edge of the deflector 33 terminates in advance of the forward edge of the deflector 32, and has a slight downward curve in cross section. The deflector 33 is continued up at the rear to form an upwardly and rearwardly extending paper table 38 which terminates at a considerable height above the platen. On the other hand, theslight pivotal movement thereon. A light wire spring 41 is connected by screws42 and 43 to a cross bar 44 of the platen frame, the spring being anchored at one end on the against the bottom of the deflector 33and causes the forward edge portion of the dd screw 42 and coiled around the stem of the 1 flector 32 normally. to. be lightly pressed against the platen, or against the mterposed work sheet. In this manner the sheets introduced from the rear of the platen through the channel 37 willbeheld snugly against the platen, and the sheets introduced into the channel 36 will be prevented from entering the channel 37 By moving the upper end of the paper table forward, the forward end portions of the deflectors may be moved downward a limited distance, thus carrying the forward contact edge of the deflector 32 away from the platen, as provided for in the construction disclosed in the hereinbefore mentioned Hart Patent 1,650,351. Unless this contact of the deflector 32 with the platen is nicely regulated and controlled, there is apt to be an undue binding of said deflector on the platen, or

on the re ister sheet, during the forward turning of the platen.

I have provided adjustable means for determining the normal position of the double deflector on its pivot 40, and also for determining the limit of pivotal movement that said double deflector may receive away from normal position, which will now be described.

Referring more particularly to Figs. 1, 9 and 12, it 'will be seen that a cross bar or supporting rod 46 is connected at its ends to the end plates 8 and 9 of the platen frame, and is fixed thereto against turning movement. One or more sleeves 47 are mounted a on this rod, two being shown in the present instance. Each sleeve is tapped transversely throughout its diameter in two lines at right angles to each other, so as to provide a plurality of tapped openings 48. ,In the most convenient one of. these openings is received a set screw 49 that is adapted to hear at its inner end against the supporting rod 46. Fixed to each sleeve 47 is a snail-cam 50, the curved contact edge of which is adapted to form a bearing against which the back of the paper table 38 is pressed by the spring 41, thus determining thenormal position of the double deflector on its pivot and pre-.

. adjusted.

In order to limit the pivotal motion of the double deflector in the opposite direction, I provide one or more additional adjustable snail-cams or stop devices 51 to contact with the bottom of the deflector 33, as indicated in Figs. 1 and 6. The carriage of the Remington machine, as manufactured, has on its cross bar 44 a series of faced lugs 52 each of these screws is supported one of the cams 51. By slightly loosening each of the screws 53, the associated cam or stop 51 may receive a turning adjustment around the stem of its screw to bring the curved contact edge of the cam or stop closer to or further from the bottom of the deflector 33, and thus regulate the extent of releasing motion of the double deflector. When the cams 51 are adjusted to the proper position, a tightening of the'serews 53 will hold the cams with a binding action in such position.

The above described means for adjusting the double deflector are not claimed herein but are claimed in a division of this case filed Dec, 1, 1927, Sr. No. 236,984.

It is intended at times to introduce rearwardly through the channel 36, first one comparatively heavy ledger sheet L (see Fig. 10), and then a comparatively thin or troduced ledger sheet and the deflector 33.

This difficulty is more pronounced when the statement sheet is relatively thin, or made from very light stock. In order to overcome this disadvantage I have provided, by the present invention, work sheet supporting means in the channel 36 for supporting the ledger sheet in an unobstructing position in said channel, where it will not interfere with the ready insertion and free passage through the channel of another work sheet, such as the statement sheet, as clearly indicated in Fig. 10. Such means in the present instance comprises a plurality of worksupporting members or ribs 54 carried by and projecting upward from the contact face of the deflector 33, in the channel 36. As shown, there are two of these supporting members or ribs 54, having a parallel arrangement and extending fore-and-aft of the machine through the channel 36 and terminating at 55 near the top of the paper table 38. The thickness of each rib 54 is preferably such that, within its field of operation in the channel 36, it occupies preferably about one-third of the space between the two deflectors 32 and 33. The ribs may be located at appropriate points longitudinally of the platen, and be properly spaced apart, in order to leave an intervening space lll between them. Throu h this intervening space a work sheet S %Fig. 10) may pass free from obstruction through the channel 36, while another work sheet L is supported on the upper contact faces of the ribs 54. I prefer to mount the ribs so that they may be adjusted to different positions longitudinally :of the platen, .in order that various widths of sheet S maybe introduced between said ribs in the channel 36. Any suitable means may be employed for this purpose. ln the present instance, I provide three parallel series of openings 56 in the deflector 33 and paper table 38 for each of the ribs. The different series of openings for each rib are spaced apart longitudinally of the platen about three-quarters of an inch, A series of screws 57 pass through a series of openings 56 and are received at their threaded ends in tapped openings in a companion rib, to detachably secure each rib in any one of the three positions to which it may be adjusted along, the channel 36. It has been found in practice that the means described efl'ectively overcome the difliculties pointed out above in successively introducmg two work sheets in the channel 36.

' n order to facilitate the backward introduction of the work sheets into the mouth of the channel 36 from in front of the platen,

there is provided a guide, shield, or paper deflector 58 that is movable on the carriage from a substantially horizontally disposed ineflective position, shown in full lines in Fig. 1, to a downwardly and rearwardly inclined effective position, shown in Fig. 2, and vice versa, as disclosed in certain of said hereinbefore mentioned patents. In order to receive these movements the deflector is constructed and mounted, in the present instance, in the specific manner disclosed in said Walsoe Patent 1,663,362.

Thus, the sheet metal deflector 58, which extends substantially throughout the length of the platen, is bent under along one-edge portion to form a looped or doubled portion 59, which extends throughout its length on the side thereof opposite its contact face forming an enclosed channel within the looped portion. In the open ends of the channel formed by the looped portion of the deflector are received oppositely directed ears or bent ends 60, which project inwardly from parallel sheet metal supporting arms 61 and 62 and are riveted to the deflector 58. These supporting arms 61 and 62 are pivotally mounted respectively on forward cured to the end plates 8 and 9 respectively has a sliding, as well as a pivotal movement y projecting arms 8 and 9' se-' on said pin. A coiled expansion s ring 64 surrounds said pin and tends t orce the arm 62 and the parts connected therewith to the left, for purposes which will presently appear. The arm 61 is supported on the shouldered bearing portion of a headed pivot screw 65, as shown in Fig. 6,, for pivotal movement and. also for axial movement alon said pivot screw. The threaded end 0 this screw is received in a tapped opening in the end of a shouldered pin 66 secured to and ,projecting inward from the end plate 8 of the platen frame.

Loosely supported on this same pin 66, in

termediate a shoulder thereon and the end of the shouldered portion of the screw 65, is a hub 67 to which is riveted an actuating arm 68. The hub .67 and connected actuating arm 68 are therefore free to turn on the supporting pin 66 but are held a ainst axial movement thereon. An inwardly projecting pin'69 is secured to the arm 68 and has a reduced portion 70 at the end thereof. This reduced end tits in an opening in the supporting arm 61 of the deflector 58. This connection between the arms 61 and 68 causes them to turn together and is normally maintained by the force exerted by the spring 64. The construction is such, however, that the deflector 58 may be shifted to the right on its pivotal supports 63 and 65 against the force of the spring 64. At this time the connection between the arms 61 and 68 will be broken and the deflector 58 is free to drop forward and downward until arrested by the top plate 1, as shown in dotted lines in Fig. 1. The main purose of thus disconnecting the deflector 58 rom its actuating arm 61 and the means by which the latter is controlled, and moving the deflector to the dotted line Fig. 1 posi tion, is to giveaccess to the ribbon vibrator 17 'for. threading the ribbon l7 therethrough.

' The arm 68 constitutes one arm of a bell crank lever, the other arm of which is indicated b the reference numeral 71. The arm 71 carries an outwardly projecting connecting pin 72 that is received and works in a slotted cam 73 in an actuating arm 74. Said arm 74 is provided with a hub 75 (see Fig. 6) by which it is secured to the hereinafter mentioned rock shaft 29. The character of the slotted cam and the construction and the arran ement of the parts are such that a forward ivotal movement of the. arm 74 from the Fig. 1 to the Fig. 2 osition, causes a pivotal movement of the deflector58 in the opposite direction, or rearwardl from its normally ineffective position. his brings the deflector 58 to the efl'ective position, shown in Fig. 2, where it overlaps and virtually forms a continuation of the deflector 33. In this movement of the deflector 58 it passes from a position where it is out of fill the path of the type bars to a position where it is in the paththereof, and crosses the printing line where .it is effective in directing work' sheets introduced rearward from in front of the platen downward into the open channel 36. From thence the sheets in question pass around and beneath the platen to the rear thereof.

The actuating arm 74 is provided with a finger piece 76 at the upper end thereof, whereby said arm and the parts controlled thereby may be actuated at will. The arm 74; also stands in cooperative relationship with means for controlling the shifting movement of certain of the feed rollers, to

be automatically controlled thereby, as will hereinafter clearly appear. 7

The actuating arm 74; constitutes one of two supporting arms for a wire line-indicator 77. Said indicator extends longitu dinally throughout the length of the platen and is adjustably connected to the arm 74 by novel means of the present invention which will now be described.

The arm 74 is formed with a lug 78 that extends in a plane at right angles tothe plane of said arm, as indicated in Fig. 7. This lug constitutes one jaw of a clamp a plate 79 constituting the other jaw of said clamp. A pair of headed screws 80 have their stems extending freely through openings in the clamping jaws 78 and 7 9 and engage tapped openings in a plate 81 in the rear of the plate 79. One end of the wire line indicator 7'? passes between the clamping jaws '38 and 79 intermediate the screws 80, and may be adjusted up and down between the contact faces of said jaws. 18y tightening the screws 80, the clamping jaw 79 will be drawn towards the jaw 78 and firmly clamped and hold the wire 77 in its adjusted position on the arm '74. One distinct advantage of this form of adjusting means is that it enables the assembler to grasp, with a pair of pliers, the projecting end of the wire 77, shown in Fig. 7, and draw the wire taut throughout its length. By then bendin the wire over a corner of the jaw 78, as s own, the wire will be prevented from relaxing from its taut condition while it is being adjusted up or down at this end of the arm 74, and while the screws 80 are being tightened to firmly hold the wire in its adjusted position.

ll also prefer to provide a stop 79" ofi-set from the plate 79 and which coacts with a stop pin 82 (Fig. 1) that projects inward from the 'endplate 8 of the platen frame, and thus limits the rearward movement of the arm'74 and the parts controlled thereby. This method of limiting the movement of the parts is superior tothe provision of a stop to coact with the platen for this purpose, since in the present construction the stops do not interfere with a register sheet,

eanne for example, reaching to or extending beyond the ends of the platen.

The opposite end of the line indicating wire may be secured to a vertically adjustable slotted plate 83 (see Fig. 3) held by screws 84 on a second supporting arm 85, as disclosed in said Walsoe patent. The arm 85 is secured to the rock shaft 29 near the right-hand end thereof. A coiled contractile spring 86 is connected at one end to the arm 74: and at its opposite end to a pin 87 extending inward from the end plate 8. This spring tends to return the arm 7% and the parts connected therewith to the normal, Fig. 1, position Where the arm is arrested by the cooperation of the stops 79* and 82.

The novel features above described for adjustably mounting the lineindicating wire 77 and for arresting its movement towards the platen etc., are not claimed herein but are claimed in a division of this application filed Dec. 13th,'l927,'Sr. No. 239,706 (now Patent No- 1,752,484)

The paper feeding mechanism embodied in the present construction includes a plue rality of aligned paper feed rollers 88, arranged to coact with the top of the platen and with work sheets introduced from the rear of the platen through the channel 87. Said feed rollers 88 coact with said sheets after the latter have passed above and beyond the printing line. The paper feed rollers 88, as shown in the present instance, are

constructed and mounted in the same gen- 7 eral manner as in said hereinbefore mentioned Hart Patent 1,650,851, except for changes in mounting the spindle on which said feed rollers'turn, as will-presently appear. v for longitudinal adjustment along a supporting rod or spindle 89,supported atits ends by forwardly extending arms 90 that are pivoted on the supporting rod 48, hereinbefore referred to, which is secured at its ends to the platen frame. Springs 91 exert their force against the arms 90 and thus cause the feed. rollers 88 to bear against the platen, or certain only of the work sheets thereon.

By swinging the bail 89 upward and rearward the said feed rollers are released.

I provide each of the arms 90 with an inwardly projecting bearing member 92, shown in detail in Figs. 13 and i l, in which the ends of the spindle 89 are loosely seated, as shown, the diameter of the bore of each bearing being greater than the diameter of the spindle. This is in order that there may be an equalization of pressure exerted from the individually acting springs.9l on opposite ends of the roller supporting spindle 89. Although it is desirable to thus loosely support the spindle 89 at opposite ends so that said spindle may assume varying angular relations relatively to the axis of the Thus, the feed rollers are mounted L IRS) platen as well as a parallel relation thereto, it also is desirable to prevent or limit the turnin movement of the spindle in its bearings. his is preferred because, among other reasons, Imount side edge paper gages on the spindle 89, as will presently appear, and any material turning of the spindle which would displace said gages from ef-. fective position should be prevented. Therefore, ll provide each end portion of the spindle with a cross pin 93 projecting from opposite sides of the spindle into slots 94 extending longitudinally of the companion bearing'member 92 and through the walls thereof. The diameter of each pin is preferably slightly less than the width of the slot 941 in which it is received. This construction aifords a slight relative pivotal movement between the arms 90 so that there may be an equalization of pressure of the springs 91 on the feed rollers 88 at the op-' posite ends ef the spindle 99. The extent of this slight relative movement between the arms 90 is determined by the extent of lost motion of the'pins 93 in their respective slots 94. When shifting the feed rollers 88 away from the platen the arms 90 will shift in unison when the slight extent of lost motion of the pins 93 in their slots 94 is taken up. Each bearing member 92 may be secured to its companion arm 90 by any suitable "means. In the present instance each bearing member has a threaded extension or stud 95 which passes through an opening in the companion arm 90 and engages a nut 96 on the opposite side thereof.

The above described means for mounting the spindle 89 are not claimed herein but are claimed in my divisional application Sr. No. 236,984 hcreinbefore referred to.

In the present construction I have provided means for automatically locking the feed rollers 88 in ineffective positionwhen they are thrown off. Referring moreparticularly to Fig. 1, it will be. seen that the left-hand arm 90 carries an outwardly pro jecting headed pin 97. The stem of this pin passes through a curvedslot 98 in a locking member or latch 99, pivoted on a headed pivot screw 100' threaded into a tapped opening in the end plate 8. The curvature of the slot 98, when the latch is in the full-line position, is substantially concentric with the axis of the rod 46 on which the arms 90 turn. Extending at an angle to'the slot 98 at the upper end thereof is a locking notch 101 that provides a locking shoulder 102. A leaf spring 103 is secured at one end by. a screw 104 to the end, plate 8, whereas the free end of said spring extends beneath a shoulder 105 on the latch 99. The force of this spring" is exerted to' shift the latch from the full to the dotted line position when the left-hand arm 90 is shifted to the dotted line position to release vthe feed rollers 88. The effect of this move- The automatically operating latching means described above leaves both hands ofthe operator free to adjust the register sheet and its accompanying carbon sheet when the feed rollers 88 are released.

In the present construction I have provided twoindependent side edge gages 107 and 108 which are mounted on the supporting od or spindle 89, as shown in Figs. 1, 4 and 6. Each gage is fixed on an independent hub or carrier 109, tapped to receive a set screw 110 by which it is held in any position to which it may be adjusted along the spindle 89 on which it is mounted. The gage 107 projects rearward from the supporting spindle for cooperation with the left-hand side edge of a work sheet introduced into the channel 37 from the'rear of the platen, whereas the gage'108 extends forward from the spindle Where it coacts with the lefthand side edge of a work sheet introduced from in front of the platen in the channel 36. The spindle 89 being fixed against appreciable turning movement in the arms 90, will hold the gages from unduly turning around the axis of said spindle, when the gages are held in place by the set screws 110. Nevertheless, the gages swing'with the spindle when the latter is turned with the arms 90 around the axis of the supporting rod 46 to releasing position, It will be understood that by making the gages 107 and 108 relatively adjustable they may be adjusted one with reference to the other, as well as affording an adjustment of both of them to various points along the spindle whilea given space between them is maintained. Moreover, it will be seen that each gage is-reversible on the supporting spindle, sothat the gages may be arranged with their hubs extending toward each other, as shown, or one extending outward to the left, or both extending inward to the right, or where the gages are to be brought in close relationship the hubs may extend away from each other, giving the closest possible arrangement of the plate-like gages 107,

my said divisional application Sr. No. 236,984.

Aside from the side edge paper gages described above, it should be understood that suitable paper end stops, such, for example, as certain of the end stops described in said hereinbefore mentioned patent to Burns #4: 1,647,854, may be employed. However, since a specific description of such end stops is unnecessary to arrive at an understanding of the present invention, further detail retcrence thereto will be omitted.

1n the present machine 1 have included certain features of the paper feed roller controlling means disclosed in said Vfalsoe application, as well as the means by which the paper deflector 58, line indicator 77 and ribhon vibrator 17 are automatically controlled thereby. Tn some instances l have modified such mechanism, and in other instances 1 have combined therewith new features for converting the machine into a so-called three-sheet biller, as will now be described.

A plurality of aligned paper feed rollers 111, preferably two in number and in the nature of margin feed rollers, are mounted for adjustment along a supporting rod, carrier, bar or spindle 112. Any suitable means may be employed to retain said rollers in their adjusted position along the spindle 112, such for example, as the means di closed in the said Waisoe Hill patent. The spindle 112 is reduced at its ends where it is provided with circumferential grooves 113 (Fig. 5), in each of which is received parallel guide members 111 of a supporting arm or guide. The left-hand supporting arm 115 at its front end is secured by a screw 116 to the carriage. The rear end portion of said arm is adjustably connected to the upper end of a supporting linlr 117, the lower end of which is supported on the inwardly projecting pin 66 on the platen frame. rom an inspection of Fig. 2 it will be seen that one side of this pin is cut away at 66 to provide'a clearance for that part of the arm 74.- in which the cam slot 73 is formed. The means of my present invention by which an. up and down adjustment of the arm 115 on the link 117 is effected, is best shown in Fig. 11, althou h any suitable means may be employed tor effecting this adjustment. Fromthis figure it will be understood that an eccentric 118 is loosely seated in an openin, 119 in the link 117. This eccentric has a exagonal head 120 by which it may be turned. An eccentrically arranged opening 121 through the eccentric receives the,stem of a headed binding screw 122. The threaded end of this screw engages m a tapped opening 122 in the supporting arm 115. When the screws 122 and 116 are loosened, the eccentric 118 may be turned, thus effecting a slight up or down ad ustment of the rear end of the supporting and guide arm 115 around tde point of its connection 116 with the carriage. By tightening the screws 116 and 122 the arm may be held fixed in its adjusted osition. The effect and purpose of this ad ustment of the arm 115 will be hereinafter made clear. A second corresponding supporting and guide arm 123 is provided for the opposite end of the spindle 112. Said arm 123 is connected at its forward end by a screw with the carriage, and 'is adjustably connected at the rear end to a link 1241 in the manner previously described in connection with the arm 115. The lower end of this link 1241 is supported on the inwardlyprojecting pin 63, as shown in 6, and constitutes an abutment for the outer end of the spring 54'. to bear against. The arm 123 supports and guides the spindle 112 in the same manner as the arm 115, for rectilinear bodily movement fore and aft of the m..- chine above the printing line, to move the feed rollers 111 in a like manner from the efiective, Fig. 1, position, to the ineffective, Fig. 2, position, and vice versa.

In order to control the ahove described movements of the feed rollers 111 there isprovided a rock shaft 125 mounted its ends'in bearing openings in the arms 115 and 123. Two parallel crank arms 126 and 12? have their hubs 128 and 129, re spectively, secured to the rock shat 125 to cause said arms to rock with the shaft from the Fig. 1 to the 2 position, and vice versa. extending projection 130 that terminates in a linger piece 131 by which the roclt shaft 125 and the parts connected therewith may be controlled. Each of the arms 126 and 127 is in the nature of toggle arm or member, the arm 126 being pivoted 132 to the forward end of its companion toggle link or member 133. The rear end of the toggle link 133 is apertured to receive the spindle 112. A collar 134 (Fig. is detachably secured on said spindle at one side of the link 133, whereas the spindle carries a washer 135 on opposite side of said link, interposed be tween the link and the, arm 115. The other toggle arm 127 is connected in a like manner with a tog 1e link 136, which in turn is connected with the spindle 112 in the same manner as the link 133, and the same reference numerals are employed to designate the corresponding parts of such connections. Laterally projecting pins 137 and 138 (see Ti 8) are carried by the toggle members 12 and 136 respectively, and to these pins are connected the opposite ends of a contractile spring 139. The construction and arrangement of the arts are such that when they are dispose as indicated in Fig. 1,.the spring 139 exerts substantially a dead-center pull against the sub- The arm 126 has an upwardly M stantially dead-centered toggle-members and is ineffective to withdraw the paper feed rollers 111 from contact with the platen or .a work sheet thereon. 'When, however, a forward pressure is exerted by the operator on the finger piece 131 to break the toggles said spring 139 exerts its force effectively and tends to complete the Withdrawal of the feed rollers 111 to ineffective position, indicated in Fig. 2. On the other hand, when the operator moves the finger piece back from the Fig.2 position, to the position indicated in Fig. 1, this results in straightening the toggles at both ends of the spindle 112 and applying the feed rollers 111 with a positively exerted force against the platen, or a work sheet thereon. The toggle 126 and 133 is limited in this movement by the stop lug 140 which projects from the arm 115 into the path of the toggle arm 126. The toggle arm 127 also is limited in its movement by a corresponding stop lug projecting inward from the supporting arm 123.

1 have referred to moving the toggle members to a substantially straight line position when applying the. feed rollers 111. In practice it is preferable when thus moving said feed rollers to arrest the toggle members after they have passed slightly over the straight line or dead-centered position, so as to hold the feed rollers 111 applied and prevent the reaction of the/parts from accidentally releasing said feed rollers. They will thus be retained applied indefinitely, or until such time as the operator manually effects a preliminary breaking of the toggle from the Fig. 1 position, and enables the spring 139 to exert a force which tends to complete the movement of the feed rollers to ineffective position;

In accordance with my present invention 1 provide an additional, or secondary set of paper feed rollers, preferably two in number, and auxiliary means for control ling said feed rollers, so that they may be employed in conjunction with what may be termed the primary feed rollers disclosed in said Walsoe application to act as a so-called three-sheet biller. This mechanism. will now be described. I

As shown in the present instance, a set of two aligned auxiliary or secondary feed rollers 141 are mounted on a spindle 142 carried by a sheet metal yoke or supplemental carrier 143. The vertically disposed end arms 144 and 145 of this yoke are apertured at 148 (see Fig. 8) to provide bearing openings in which the spindle or main carrier thereon.

112 is received and'on which spindle the yoke is carried for bodily movement therewith and for independent pivotal movement This construction is such that when the primary feed rollers 111 are in the effective (Fig. 1) position, a shifting of the yoke 143 from the dotted to the fullline positionin said figure will carry the secondary feed rollers 141 into contact with the platen, or with, say, a statement sheet on the platen introduced rearwardly into the channel 36 from the front of the platen. lVhile, as indicated above, the feed rollers 141 move bodily towards and away from the platen with the supporting rod or spindle 112, they are out of axial alignment with the rollers 111 and it is the pivotal movement of the feed rollers 141 around said supporting spindle or main carrier which determines whether the feed rollers 141 are effective or ineffective, even though the spindle 112 be in the advanced Fig. 1 position. The means by which the pivotal position of the feed rollers 141 around the spindle 112 is determined are as follows:

Referring more particularly to Fig. 8, it will be seen that an off-set ear 147 is provided onthe upright arm 144 of the yoke or carrier 143. A headed pivot pin 148 connects said ear to a link-like controlling or locking member 149. An upwardly extending arm 150 on the member 149 terminates in a finger piece 151, by which said member and the parts controlled thereby may be manipulated in a manner which will presently appear. The forward end of the member 149 has a slot therein having a portion 152 thereof at one elevation and a portion 153 at a higher elevation. The formation of the slot is such that a locking shoulder 154 is provided intermediate the two portions 152 and 153 of the slot. A headed pin 155 extends through said slot and is carried, in the present instance, on a crank arm 156 fixed on the rock shaft 125. A.

laterally projecting pin 157 on the member the relation shown in Fig. 8. The manner in which the feed rollers 141' and the controlling means therefor function, will now be described.

Assume that a register sheet E (Fig. 10) and its accompanying carbon sheet (not shown) have been introduced through the channel 37 and properly positioned with the leading edges thereof beneath their feed rollers 88, and that the remaining parts are in the Fig. 2 position. The operator then introduces a ledger sheet L from the front of the platen into the channel 36 and .accurately positions said sheet. An actuation of the finger piece 131 in a direction opposite to that indicated by the finger thereon Fig. 2.

in Fig. 2, results in straightening the toggles to the 1 position and positively applying the feed rollers 111 against the platen and against the margins of the previously introduced ledger sheet. At this time the finger piece 1.51 and the parts controlled thereby are in the dotted-line, Fig. 1, position, with the feed rollers 1411 in the released position. This is due to the fact at this time thelockin shoulder 154- engages the pin 155 and holds the yoke 1413 against the force of the spring 158, as indicated in dotted lines in Fig. 1. The statement sheet S with an accompanying carbon sheet (the latter not being shown) may then be introduced from the front of the platen into the channel 36, and between the feed rollers 1 51 and the platen, or the ledger sheet thereon. After the statement sheet and the accompanying carbon sheet have been properly adjusted, the finger piece 151 is shifted by the operator from the dotted to the full-line Fig. 1 position. This results in first moving the torward end of the link or member 149 up disengaging the locking shoulder 15 1 from the pin 155. The spring 158 is then effective to swing the yoke 1 13 and feed rollers 1 11 from the dotted to the full-line Fig. 1 position, thereby applying said feed rollers to the previously adjusted statement sheet 5. The machine is then conditioned to proceed with the writing, and the matter written will be produced -on the statement sheet and through the carbon sheets on the ledger and register sheets.

After the statement is written as de-- scribed, the operator shifts the finger piece 131 to the Fig. 2 position, thereby releasing the feed rollers 111 and 1 11 and permitting ready withdrawal of the statement sheet, the accompanying carbon sheet and the ledger sheet, and conditioning the machine for new sheets to replace those withdrawn. lit will be seen that the act of shifting the parts as last described, with the aid of the finger piece 131, resulted in automatically dropping the front end of the link from the position where the locking shoulder 15 1 is released from the pin 155 (see full lines in Fig. 1), to the position where said shoulder is positioned to engage said pin, as shown in The efi'ect of this was to automatically condition or look the feed rollers 141 so that they will not be applied to the platen or a work sheet thereon when the next, or any subsequent, actuation of the finger piece 131 is effected to apply the feed rollers 111 to the ledger sheet. In fact the feed rollers 1&1 are thus automatically conditioned or locked out of effective position indefinitely, or until they are again applied by an independent actuation of the finger piece 151 in the manner hereinbefore described. This occurs after a new ledger sheet has been inresales serted, positioned, and clamped in position by its feed rollers 111, and arter a new statement sheet and accompanying carbon sheet have been introduced and positioned in place. After each writing of a statement and'ledger sheet as-described, the automatically operating locking means for the feed rollers 1 11 will function during the act of shifting the finger piece 131 from the F i g. 1 to the Fig. 2 position, and can only be released by an independent actuation of the finger piece 151.

l have shown and described the locking link or member 1&9 as supported on a pin 155 carried by a crank arm 156 on the rock shaft 125, simply because the provision of the crank arm constitutes a convenient place to support the in 155. The locking link is moved fore-ano-aft of the machine by reason of its connection with the spindle 112, so that there is no necessity for the provision of a movable pin 15.), and it may therefore be mounted on any convenient part of the carriage, and the devices will function in the manner described.

By providing the feed rollers 1451 and the controlling means therefor, 1 convert the so-called two-sheet biller described in the hereinbefore mentioned Walsoe application into a so-called three-sheet biller.

It will be understood, moreover, that the .spindle 112 and the rock shaft 125 are detachable from the machine with little dilhculty, and that the feed rollers 141 and the means for controlling them may be readil attached to or detached from the rock shait 125 and the spindle 112. Therefore, these devices are in the nature of an attachment which may be applied or omitted at will, de-

pending on the use to which the machine is to be put, as a two-sheet or three-sheet biller. It will be understood, moreover, that in applying the attachment to the machine disclosed in the VValsoe patent, it is unnecessary to modify the structural features existing in said machine.

llt has been hereinbeii'ore pointed out that by the adjusting means disclosed in Fig. 11 for the guide arms 115 and 123, the positively applied feed rollers 111 will be pressed with more or less force each time they are applied, depending on said adjustment. It is believed that this will be readily understood since said feed rollers are applied above the printing line, and the adjustment of the guide arms is transverse to the line of rectilinear movement of said feed rollers 111 intoefiective position and slightly changes such path of movement relatively to the inclined contact face of the platen. Therefore, the downward adjustment of the guide arms will bring the feed rollers 111 nearer to the platen, so that they will be applied with greater force when the actuating toggles are straightened. On the other hand, an upward adjustment of the guide arms carries the feed rollers 111 further from theplaten, so thatthey will be positively applied with less force when the toggles are straightened. 1

Thus far 1 havedescribed the means for moving the feed rollers 111 into and out of contact with the platen without reference to the automatic control by such means of the line-indicator 77, the paper deflector 58 and the ribbon vibrator 17. The arrangement by which such automatic control is effected is to extend the actuating arm 7 4 into the path of the bodily movable spindle 112. Thus, it will'be seen that said actuating arm etxendsup between the supporting arm 115 and the toggle link 133. As the parts move from the Fig. l, to the Fig. 2 position, the washer 135 on the left-hand end of the spindle 112 willcoact (after a preliminary extent of lost motion) with the actuating arm 74:.

till

This will result in automatically shifting the line indicator 77 to ineffective position, in shifting the deflector 53 to effective position and in lowering the ribbon vibrator 17 out of the path of the said deflector, all as represented in Fig. 2. Such movements of the parts in question will have been. effected by the time the stop projection 159 on the lever 74 reaches the coacting stop 140, as shown in Fig. 2, and arrests further movement of the parts.

It will be seen that while the parts referred to above are automatically actuated during the withdrawal of the feed rollers 111 from efiective position, nevertheless by an r actuation of the finger piece 76, the line indicator 77, deflector 58 and the ribbon vibrator 17 may be moved independently of the feed rollers 111 from the ldig. 1 to the Fig.

2 positions, and while said feed rollers remain applied to thepla ten.

Atdiflerent times, depending on conditions of use of the machine, it is required that the deflector 58, line indicator 77, and ribbon vibrator 17 be automatically moved to their respective positions when the feed rollers 111 and 141 are moved bodily back and forth between the Fig. 1 and the Fig. 2 positions, and that said deflector, line indicator and ribbon vibrator be independently controlled by the finger piece 76, as explained above. But it is also essential at times that said feed rollers be released without moving the line indicator from its effective position, as indicated in Fig. 3. This is necessary when for example the line indicator is to be wholly relied upon toelfect proper adjustments in a line feed direction, of the sheets (such as the ledger sheet L and statement sheet S) introduced rearwardly in the channel 36. To attain these ends the provision of lost motion between the leftrollers 141, may each be separately adjusted.

with reference to the line indicator 77.

in order that the feed rollers 111 and 141 may be automatically held in, and not be accidentally moved forward beyond the Fig. 3 position by the spring 139, which tends to move said rollers to the fully released, Fig. 2 position, I provide a detent means which will now be described:

In the present instance I have provided a simple form of detenting means comprising a comparatively heavy leaf-spring 160 which is bifurcated at its forward end, as-

indicated at 161, to straddle the rock shaft 125. This spring is slotted at 162 to receive the stem of a headed clampingscrew 163, received at its threaded end in the supporting arm 115. In this manner the spring may be mounted on said arm 115 for foreand-aft adjustment. A tightening of the screw will bind the spring in its adjusted position at the anchored end thereof. The rear free end portion of the spring is bent, as clearly shown in Fig. 5, to provide an inclined detent face 164 with which the lefthand end of the spindle 112 coacts, as shown in dotted lines in the above mentioned figure, when the parts attain the Fig. 3 position. It will be understood that the power of the spring 160 is such as to overcome the tendency of the spring 139 to move the feed rollers to the Fig. 2 position. Therefore, the operator may break the toggles from the straight-line Fig. 1 position, and the parts may be arrested in the intermediate Fig. 3 position, unless it is desired to move them to the Fig. 2 position, where the feed rollers are arrested at the limit of their releasing movement, after the deflector 58, line indicator 77 and vibrator 17 have been shifted. Tn this event it is merely necessary for the operator to exert a slight pressure on the finger piece 131 after the detent face 164s is reached, which will result in deflecting the of this face is such that" it will coact with the left-hand end of the spindle 112, on the opposite side thereof from that with which the parts are in the position shown in Fig.

2.. The purpose of this detent face 165 is to i the detent face 161 coacts, when said spindle has completed its releasing movement, and

- say, of the side edge gage 107.

assure the maintenance of the parts in the Fig. 2 position, or prevent them under the reaction of the spring 86, or otherwise, from being accidentally displaced from said Fig. 2 position. This detent face 165 therefore prevents an accidental movement of the deflector 58, line indicator 77 and the ribbon vibrator 17 from the positions which they occupy in Fig. 2 to, say, the Fig. 1 position. Should the deflector 58 thus accidentally move from the Fig. 2 to the Fig. 1 position, it would interpose itself in the path of the type bars and prevent the operator from operating the machine to produce writing. Moreover, the line indicator would be moved to ineffective position and the ribbon Vibrator would be lowered. It will, of course, be understood that resistance offered by the detent face 165 may be readily overcome by actuating the finger piece 131 to move it and the parts controlled thereby from the Fig. 2 to the Fig. 1 position.

The means that enable the spring 160 to be adjusted as described, allows the detent faces 16% and 165 to be properly set to coact with the spindle 112 in the different positions specified.

One example of the use of the present machine, such as has. been hereinbefore referred to, is asfollows:

A register sheet, which is to take the accumulation of the various be written, and a corresponding carbon sheet (having its effective face next to the register sheet) are first introduced together from the rear of the platen through the channel 37, being positioned widthwise with the aid, At this time the parts may be disposed as indicated in Fig. 2. The leading ends of the register and its carbon sheet are then introduced beneath the paper feed rollers 88 and the sheets are adjusted to proper position in a line feed direction, if necessary, with the aid of the line indicator 77. This may be readily accomplished by moving the finger piece 131 rearward until the line indicator is in indicating position, which is attained before the feed rollers 111 are moved all of the way to inefiective position, and when the parts have attained the Fig. 8 position. After initially positioning the register sheet in the manner indicated, no further attention need be paid to it in the successive introduction, writing and withdrawal of the different statement and ledger sheets. The

register and associate carbon sheet having been initially positioned as indicated, a ledger sheet carrying the account of the statement to be written is introduced from in front of the platen through the channel 36, the parts being first positioned, as indicated in Fig. 2, to facilitate the introduction of the ledger sheet. The led er sheet thus introduced may be proper y positioned statements to memes widthwise of the machine and the register sheet, with the aid of the side edge gage 108. With the parts shifted to the Fig. 3 position, the line indicator may be employed to locate the ledger sheet in a line space direction. The finger piece 131 is then actuated to straighten the toggles, as shown in Fig. 1, and apply the feed rollers 111 to the adjusted ledger sheet, leaving the feedrollers 141 released, as shown in dotted lines. The finger piece 76 may then be actuated to condition the machine to receive the statement sheet. Pressure is maintained on the key 76 until a statement sheet is introduced rearwardly into the channel 36. When thus positioned the finger piece 7 6 is released and the statement sheet adjusted with reference to the now efiective line indi eator 77. The finger piece 151 is now actuate-d to release the feed rollers 141 from control of the locking means therefor and enable them to bear on the statement sheet and hold it in its adjusted position. The operator may now proceed to write the statement and simultaneously produce a manifold copy thereof in requisite positions on the ledger and register sheets. The finger piece 131 is then shifted to the Fig. 2 position and new ledger and statement sheets are introduced, as before. In shifting the parts to the Fig. 2 position the locking link 1 19 is automatically locked on the pin 155, so that when the feed rollers 111 are next pressed against a newly introduced ledgersheet the rollers 1 11 will be held in ineffective position and cannot be moved from such position until the finger piece 151 is actuated to release the locking link 1 19 from its cooperating pin 155. This does not occur until a new statement sheet has been introduced and adjusted, as previously pointed out.

When using the machine for writing comparatively short bill sheets, where entries are always begun at a given point on each sheet, end stops, such for example as disclosed in the hereinbefore mentioned Burns patent, may be employed instead of at all times relying on the line indicator to position the ledger sheet and the bill, statement or invoice sheet. In such event the operation Will be much the same as described above, except that it is unnecessary to manipulate the mechanism as described to bring, by a separate operation, the line indicator into use with the ledger and bill sheets. It will be understood that after writing each statement the carriage is automatically returned and the platen automatically line spaced, thereby spacing the platen to bring the register sheet in proper position to receive a manifold copy of the next statement written on the machine.

In substantially the same manner as that indicated above, the machine may be emtime the sheet described above as a register 7 sheet would constitute a manifold record of the checks written and may constitute a pay roll sheet. In this event, however, no ledger sheet will be employed. The feed rollers l ll will be employed to coact with the checks, and the finger piece 151 would not be manipulated, leaving the feed rollers 141 ineffective.

Generally speaking, the sheet described above as a register sheet, and which remains in themachine when the other sheets are removed and new ones inserted, may constitute a register sheet, a proof sheet, a sales sheet, a distributing sheet, or a pay roll sheet, depending on the use of the machine for diiferent purposes.

In some instances the line indicator may be employed to position, in a line feed direction, each sheet introduced from in front of the laten into the channel 36 when it is'not f dasible or desirable, for one reason or another, to employ end stops. In such an event-the machine may be manipulated as hereinbefore described.

By the present invention I have provided a construction which has proved rapid of operation, highly efficient and reliable in use, which is compact and comparatively simple in construction and can be manufactured at comparatively small cost and be readily embodied in existing Remington machines without modifying, or materially modifying, the existing structural features of said machines.

Various changes may be made in the con- I struction and certain parts thereof may be employed without others, without departing from my invention as it is defined in the accompanying claims.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a platen, a'set of margin paper feed rollers, controlling means for applying said feed rollers against the platen with a positive pressure, a second set of margin paper feed rollers spring-pressed against the platen, and means rendered effective by said controlling means for restraining the spring pressed rollers against the action of their spring means and away from .the platen while the first mentioned set of rollers are being positively applied.

- feed rollers, controlling means for applying said feed rollers against the platen with a positive pressure, a second set of margin paper feed rollers spring-pressed against the platen, means rendered effective-by said controlling means for restraining the springpressed rollers against the action of their spring means and away from the platen while the first mentioned set of rollers are being positively applied, and means for freeing said second set ofrollers from said restraining means. v

3. In a typewriting machine and billing mechanism therefor, the combination of a platen, a set of margin paper feed rollers, means for controlling the movement of said feed rollers into and out of contact with the platen, a second set of paper feed rollers restricted to a field of operation intermediate said margin feed rollers, independent means operable at will for moving said second set of feed rollers into contact with the platen after the first mentioned set of feed'rollers has been applied, and means controlled by the movement of said first set of rollers away from the platen for automatically rendering and maintaining indefinitely the second set of feed rollers'ineifective on the laten so that when the feed rollers of the rst set are again applied to the platen the rollers of tive.

4. In a typewriting machine and billing the second set remain inefi'ecmechanism therefor, the combination of a able hand controlled means for effecting an' application of the feed rollers of one set to the platen independently of the feed rollers of the other set, and automatically operating means for releasing the feed rollers of one set from the platen when the feed rollers of the other set are released.

5. In a typewriting machine and billing mechanism therefor, the combination of a platen, a set of margin paper feed rollers,

means including a finger piece for. controlling the movement of said feed rollers into and out of cont-act with the platen, a second set of paper feed rollers restricted to afield of operation intermediate said margin feed rollers, means including a sec-' ond finger piece by which the feed rollers of the second set are independently controlled in their movement into contact with the platen after the rollers of the first set are in contact with the platen, and automatically operating means by which rollers of the second set are moved out of contact with the platen when the feed rollers of the .first set are withdrawn from the platen.

6. In a typewriting machine and'billing mechanism therefor, the combination of a platen, two sets of paper feed rollers, the

rollers of one set being margin feed rollers and the rollers of the other set being restricted to a field of operation intermediate the margin feed rollers, a finger piece, means controlled thereby for controlling the movement of both sets of feed rollers towards and away from the platen, a separate finger piece, means controlled thereby for inde pendently controlling the movement of the feed rollers of one set into contact with the platen so that the rollers of one set may be independently applied to the platen after the rollers of the other set are applied, and a-uton'iatically operating means for rendering one set of feed rollers ineffective when the rollers of the other are withdrawn from the platen.

7. i a typewriting machine, the combina." tion of a platen, a set :i' margin paper feed rollers, means for applying said .d rollers against the platen with a positive pressure, a second set of margin paper feed rollers spring-pressed against the platen, means for restraining the spring-pressed rollers against the action of their spring means and away from the platen while the feed rollers of the first mentioned setare being positively applied, and means for automatically bringing said second set of feed rollers under control of said restraining means when the feed rollers of the first mentioned set are moved away from the platen.

8. In a typewriting machine, the combination of a platen, a set of paper feed rollers coacting with the platen above the printing line and movable into and out of contact with the platen, a second set of paper feed rollers coacting with the platen above the printing line and connected to move with the first mentioned set of rollers towards and away from the platen and also movable into and out of contact with the platen independently of the first mentioned set of feed rollers, and means for independently and positively locking said second set of feed rollers out of contact with the platen.

' 9. In a typewriting machine, the combination of a platen, a set of paper feed rollers coacting with the platen above the printing line and movable into and out of contact with the platen, a second set of paper feed rollers coacting with the platen above the printing line and connected to move with the first mentioned set of rollers towards and away from the platen and also movable into and out of contact with the platen independently of the first mentioned set, of feed rollers, and automatically operating means for independently locking said second set of feed rollers out of contact with the platen and including manually controlled means for releasing said locking means.

10. In a typewriting machine, the combination of a platen, a set of paper feed rollers 'coacting with the platen above the printing line and movable into and out of contact with the platen, a second set of paper feed rollers coacting with'the platen above the printing line and movable into and out of contact with the platen independently of the first mentioned set of feed rollers, and means for locking said second set of feed rollers out 01"- contact with the platen, said locking means comprising a spring-pressed pivoted link having a loc notch therein to e g'age a pin shiftable with eed rollers and also havwhich said link may be said second set o mg a linger PRC" shifted in. opp ngpr ie to :tree the loc 211d pin 11. ty'; o x conioination of a p 1 pr! my paper teed rol ierewitn, ond set 0 r ecd rollers co 12. in a typewriting machine, the com o bination of a platen, a set of primary paper feed rollers cooperative therewith, second set of secondary paper feed rollers cooperative with the platen, means for operatively connecting the two sets of feed rollers to move together towards and away from the platen, means for applying the set of pri-- mary feed rollers to the platen, independently actuated means for controlling the application of the secondary feed rollers to 'l the platen, and automatically operating means controlled by the release of the primary feed rollers for releasing said secondary feed rollers and for thereafter maintaining them ineflective of application to the platen except by an operation of the independently actuated controlling means therefor.

13. In a typewriting machine and billing mechanism therefor, the combination of a platen, two sets of paper feed rollers cooperative therewith, the rollers of one set being margin feed rollers and the rollers of the other set being restricted to a field of operation intermediate the margin feed rollers, independently actuated means for controlling the application of the feed rollers of the two sets to the platen, and automatically operating means for releasing one set of feed rollers from the platen when the feed rollers of the other set are released.

14. In a typewriting machine and billing mechanism therefor, the combination of a platen, a set of primary margin paper feed rollers cooperative therewith, means including a finger piece for controlling the application of said feed rollers to the platen, a second set of secondary paper feed rollers cooperative with the platen and restricted to a field of operation intermediate said Hill margin feed rollers, means including an independently actuated finger piece for controlling the application of said secondary feed rollers to the platen, and automatically operating means for releasing said secondary feed rollers from the platen when said primary feed rollers are released.

15. In a typewriting machine, the combination of a platen, a set of primary feed rollers cooperative therewith, a shiftable spindle on which said feed rollers are carried and by a bodily movement of which said feed rollers are applied to the platen, means for shifting said spindle bodily, a set of secondary paper feed rollers carried by said spindle out of axial alignment with said primary feed rollers, and independently actuated means cooperative with said secondary feed rollers to control the shifting thereof on said spindle and thus control the application of the secondary feed rollers to the platen.

16. In a typewriting machine, the combination of a platen, a set of primary feed rollers cooperative therewith, a shiftable spindle on which said feed rollers are car-,

ried and by a bodily movement of which said feed rollers are applied to the platen, means for shifting said spindle bodily, a set of secondary paper feed rollers carried by said spindle out of axial alignment with said primary feed rollers, independently actuated means cooperative with said secondary feed rollers to control the shifting thereof on said spindle and thus control the application of the secondary feed rollers to the platen, and automatically operatin means by which the release of the primary feed rollers is effective to release the secondary feed rollers but the application of the primary feed rollers to the platen is ineffective to apply the secondary feed rollers to the platen.

17. In a typewriting machine, the combination of a platen, a set of primary feed rollers cooperative therewith, a shiftable spindle on which said feed rollers are carried and by a bodily movement of which said feed rollers are applied to the platen,

means, for shifting said spindle bodily, a

carrier pivoted on said spindle, a set of secondary paper feed rollers carried by said carrier out of axial alignment with the primary feed rollers, and independent means for controlling the pivotal movement of said carrier on the spindle to control the application of the secondary feed rollers to the platen.

V 18. In a typewriting machine, the combination of a platen, a set of primary feed rollers cooperative therewith, a shiftable spindle on which said feed rollers are carried and by a bodily movement of which said feed rollers are applied to the platen, means for shifting said spindle. bodily, a carrier pivoted on said spindle, a set of secondary paper feed rollers carried by said carrier out of axial alignment with the primary feed rollers, a finger piece for controlling the pivotal movement of said carrier to control the application'of the secondary feed rollers to the platen, and means autocarrier pivoted on said spindle, a set of secondary paper feed rollers carried by said carrier out of axial alignment with the primary feed rollers, a link connected to said carrier, automatically operating latching means cooperative with said link when the primary feed rollers are released, and a finger piece on said link for releasing it from its latching means and controlling the application of the secondary feed rollers to the platen.

20. In a typewriting machine andbilling mechanism therefor, the combination of a platen, a spindle shiftable towards and away from the platen, a set of paper feed rollers carried thereby and shiftable into and out of contact with the platen by said shifting movement of the spindle, a second set of paper feed rollers carried by said spindle, and means operable independently of the operation of said spindle for rendering said second set of. feed rollers effective to coact with the platen to feed a work sheet or sheets.

21. In a typewriting machine, the combination of a platen, a spindle shiftablc towards and away from the platen, a set of paper feed rollers carried thereby and shiftable into and out of contact with the platen by said shifting movement Oflllle spindle, a second set of paper feed rollers carried by said spindle, means operable independently of said spindle for rendering said second set of feed rollers effective to coact with the platen and for locking them in ineffective relation, and automatically operating means forrendering said locking means effective when the spindle is moved away from the platen.

22. In a typewriting machine, the combination of a platen, two sets of paper feed rollers, a finger piece, means controlled thereby for moving both sets of feed rollers ,towards and away from the platen and for

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