US1256702A - Type-writing machine. - Google Patents

Description

F. LAFFAY. TYPE WRITING MACHINE.

Patented Feb. 19

4 SHEETS-SI'IEET I.

APPLICATION FILED OCT. 22, I914.

WITNESSES-JV" ATTDRNEY F. LAFFAY.

TYP-E WRlTlNG MACHINE.

1 APPLICATION FILED OCT. 22, I934. 1,256,792 Patented Feb.19,1918.

' 4 SHEETS-SHEET 2.

$|NVENTUR= v Inn-15555;

, F. LAFFAYL TYPE wmrmc MACHINE.

APPLICATION-FILED OCT. 22. 19M.

Patented Feb. 19, 1918,

4 SHEETS-SHEET 3- INVENTUR:

, ATTDHNEY WITNESSESQ F. LAFFAY. TYPE WRITING MACHINE. APPLICATION man OCT. 22. 1914.

Patented Feb. 19,1918.

4 SHEETSSHEET 4.

INVENTEJR= ATTURNEYW Premier typewriting machine,

. To all whom it may concern:

REMINGTON TYPEWBITER COMPANY, OF ILION,

NEW YORK.

NEW YORK, A COEPQRAFMON 0F TYPE-WRITING MACHINE.

. Application filed Qctober 22, 191%. serial No. 886304;.

Be it known that I, FERNAND LAFFAY, a citizen of the Republic of France, now serving in the French Army, last residing at London, England, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification. I

My present invention relates to paper feeding mechanism for typewriting machines and its general object is to provide new and improved mechanism of the character specified and by means of which novel results may be obtained.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, combinations of devices and arrangements of arts hereinafter described and particular y pointed out in the claims.

In the accompanying drawings which illustrate the preferred form of my invention applied to a No. 10 front-strike Smith Figure 1 is a fragmentary front elevation of the platen and platen carrier of said machine embodying my invention.

Figs. 2, 3 and 4 are perspective detail views of certain parts of my improvements.

Fig. 5 is a fragmentary front elevation of my improvements.

Fig. 6 is a front elevation of certain of the parts shown in Fig; 5 but in different relationships. f I

Fig. 7 is a side elevation viewed from the left of the upper part of the machine with my invention applied thereto.

Fig. 8 is a fragmentary end view viewed from the right-hand side and showing some of the parts in different relationships from Fig. 7.

ig. 9 is a sectional view of the parts as they appear in Fig. 8, the section being taken on the plane indicated by the dotted line a!-a2 in Fig.5 and looking in the direction of the arrow at said line.

10 is an enlarged sectional view taken on a plane indicatedby the dotted line 31-11 of Fig. 1 and looking in the direction of the arrow at said line.

Figs. 11 and 1 2 are respectively fragmentary front and side elevations, the latter partly in section, showing the parts after the first step of an operation.

Fig. 13 is a fragmentary view corresponding to Fig. 11 but showing a succeeding stage of the operation.

Fig. 14 is a view correspondin 11 but showing the final stage of tion.

to Fig. e opera- Referring first to Figs. 1, 7 and 12, 1 indicates stationary standards rising from the top plate (not shown) to which standards is fixed an inclined grooved track-way 2 which cooperates through anti-friction balls 3 with the rear or slide bar 4 of a carriage truck. Said truck further comprises end bars 5 rigid with the slide bar 4 and providing open bearings for the axle 6 of a rotary platen 7 which is mounted in a platen frame comprisin end ars 8 and connecting cross bars 9 an 10. aid platen frame together with the platen is adapted to be rocked on the truck and is readily detachable therefrom, the frame and truck together constituting a traveling platen carriage which is controlled by a motor and escapement devices of the ordinary construction (not herein shown). Cooperative with. the platen at its under side are paper feeding devices 0 the usual construction comprising a main feed roller 11 and a supplementary roller 12, the feed rollers being mounted on a frame 13 which is loosely pivoted on the bar 10. Guide fingers 14 are fixed to the frame bar 9 to guide the paper downward at the rear of the platen. At the front side of the platen is a combined paper scale and guide bar or plate 15 which extends the full length of the platen and is mounted on arms 16 Specification of Letters Patent. Patented Feb, 19,119fig.

cated at 15*. Front paper guidin fingers on a ro .18 an- 17 are slidably mounted said fingers being ranged above the platen,

' carr1ers'22, said carriers being platen and advance the relationship therewith by pressed by springs 19 toward the platen and their lower ends overlying the scale late 15. Said rod 18 is supported at its en s on arms 20 which are pivotally mounted on the end bars 8 and normally maintained in fixed locking devices (not shown). In Fig. 1 1t will be observed that the feed rollers 11, 12 do not extend throughout the full length of the platen. Outside of said. feed rollers are provided marginal rolls 21 which are mounted on pivotally supported on the frame rod 10. Springs 23 coiled around the rod 10 coiiperate with the carriers to press the marginal rolls 21 constantly' toward the platen. These marginal rolls are not releasable by the regular releasing devices which are provided for the middle or intermediate feed rollers 11 and 12. Said releasing devices comprise a rock shaft 24 bearing at its ends in the bars 8 and'provided at its left-hand end with a releasing arm or lever 25. Fixed to said rock shaft are forwardly projecting fingers or lugs '26 which cooperate with the ledge or lip 13 on the frame 13 to move said frame downward when the release lever 25 is pulled forward as shown in Fig. 12, overcoming a leaf spring 27 which is confined between the frame 13 and the rod 10 and constantly tends to press said frame upward and maintain the rollers 11 and 12 III cooperative engagement with the platen. This releasing operation by the lever 25 also acts to throw off the scale plate 15 which acts on the lower ends of the paper fingers 17 to release said paper fingers.

The usual line spacing devices are preferably provided comprising a line spacing ratchet wheel 28 (Fig. 1) operatively connected to the right-hand end of the platen, said devices being operative to turn the paper step-by-step.

My present invention is more especially concerned with supplementary paper feeding or controlling devices or means next to be described for feeding the paper continuously to predetermined extents as distinguished from the ordinary step-by-step feed or advance communicated by the usual line spacing devices. Apair of posts, supports or round track-ways 29 secured at their lower ends to the slide bar 4 by screws 30 are inclined upward and rearward in the general plane of said slide bar, said posts beingv spaced apart as appears from Figs-1 and 5 and connected at their tops by a cross bar or rod 31 which lends stiffness and rigidity to the construction. The support a chute, clamping device or supplementary paper feeding device comprising two plates 32 and 33 which are separated or spaced apart by strips 34 arranged between the plates near their ends, screws 35 passing mouth 37 to the slot.

posts slidably' through said strips. and securing the plates and strips together, a narrow slot-way or opening 36 being two plates. At its up er end the front plate 32 is curled or bent f drward while the rear plate 33 is bent backward at its upper end as clearly shown in Figs. 8, 9 and 10 thus providing a comparatively wide or fiaring A cross bar or plate 38 is arranged behind the plate 33 and the two are suitably fastened together. The plate 38 is provided at its ends with tubular bearings 39 which fit over and bear on the posts 29, the construction roviding for an easy sliding movement of the chute as a whole up and down on the posts or trackways 29. Upward movement of the chuteis limited by stop collars 40 adjustably set on the posts near their tops and with which the upper ends of the tubular bearings 39 contact. The paper is adapted to be fed downward into the slot-way 36' through the chute and in order to control its passage through the chute, devices are provided comprising spring fingers 41 secured by screws 42 to,the back of the plate 38, said springs being bent into abow-shape and their lower end portions being curved or rounded and tending constantly, through the inherent pressure of the springsthemselves, to enter the slotway 36 through slotsor openings 43 cut 43 said curved ends are in register. Passing through the slots the curved ends contact with the inner face of the plate 32, as in Fig. 7, to clamp the paper lightly against said plate or to such an extent as to prevent downward movement of the paper accidentally or through its own weight. Consequently when the spring fingers are in operative contact with the paper in the chute the paper will be compelled to participate in any movement which may be communicated to the chute without any change taking place in the relationship between the paper and the chute. In order to throw off the spring fingers 41 and clear the passage or slot-way 36, and at the same time free the paper which may be within the chute, a transverse rock shaft 44 is arranged within the bow of the springs, said rock shaft bearing in brackets 45 secured to the plate 38 and being provided at its right-hand end junction between the flats 44 and the roundthus provided between the.

In the under plate 33 and with which slots 44 of the A 'ed sides of the shaft will engage with the springs and act as a cam, forcing the springs downward out of the slots 43 to the Fig. 9 position where the springs are entirely outside the slot-way 36, leaving the latter open and unobstructed throu hout its length so that paper may readily e inserted and advanced through the chute. Turning movements of the rock shaft .44 are limited by step devices comprising a. lateral stop pin 45 on the right-hand bracket 45, which pin coiiperates with the sides of a notch 44 cut in a flan e or collar 44 fixed to the rock shaft 44 ust outside said bracket (Fig. 8).

The chute is controlled in its up and down movements by a train of devices comprising a lever 47 pivoted at 48 to a block or collar 49 adjustably fixed to the left-hand post 29 (Figs. 1, 5, 7 and 10). The right-hand arm of this lever inclines downward and inward and terminates in a straight extension which normally is horizontaL' This straight portion coiiperates with a roller 50 arranged behind the cross bar 38 at about the middle of its length. The roller is pivoted on a screw 51 which also assists to secure in place on the plate 38 a downwardly extending strip 52 terminating in an angular stop portion 53 which is adapted to cotiperate with the top of the slide bar 4 to limlt downward movements of the chute. A securing screw 54' at the lower end of the strip 52 insures its rigidity on the plate 38. The screws 51 and 54 also secure in place a guide bar or strap 55 which is bent outward behind the roller 50 and provides a space 56 in which the inner straight portion of the lever 47 is loosely confined. The upper end of said straight portion engages with the under side of the roller and gives an anti-friction connection with the chute and one which permits straight or right line movements of the chute while the lever 47 is moved pivotally. The free end of the left-hand or shorter arm of the lever 47 is pivotally connected at 57 with the upper forked end of a vertically disposed extensible link 58, the lower end whereof is pivotally connected at 59 with a horizontally disposed arm or lever 60, the construction and mounting whereof, together with that of the associate parts, is best shown in Figs. 2 to 7. The left-hand end of the arm 60 is curved and shaped to provide a finger piece 61 while its righthand end is pivoted on a pivot screw 62 which is supported on a bracket or plate 63 fixed by screws 64 to the slide bar 4. The tendency of the chute due to gravity is to run down its guide ways until arrested by the stop 53, this movement raising the arm 60 to the Flg. 14 position. In order to hold the chute raised in the Fig. 1 and Fig. 5 position, devices are provided which coiiperate with the arm 60 to hold it down as shown in erally from ing preferably automatically controlled from the carriage release key 25 and comprising a hook 65 which is pivoted at 66 to the inner face of the left-hand end bar 5. A lateral pin 67 on said hook 65 underlies a flat spring 68 secured by screws 69 to the upper face of the end bar 5, the spring acting to maintain the hook in operative position. A link 70 is pivotally connected at 71 to the hook 65, said link being provided with a slot '72 having an open mouth 73, the slot engaging with a screw pin 74 projecting latthe release lever 25. The open mouth of the slot provides for readily detaching the link from the release lever and the slot provides for a lost motion connection between the link and the release lever. Said connection permits a releasing movement of said lever to throw ofi the feed rolls 11 and 12 without operatively aifecting the link 7 O, the pin 74 on said lever traversing the slot toward its forward end during such releasing movement but not moving far enough to engage operatively with the forward end of the slot. However, when the releasing lever is pulled forward to its full extent it not only acts to release the paper controlling devices which coiiperate with the platen but also contacts with the end of the slot 72 and pulls forward the link 7 0, causing the latter to pull the hook 65 forward to release the arm 60 and permit the chute to drop downward of its own weight.

Means are provided for regulating and controlling the extent of downward movement of the chute when the hook 65 releases the lever 60, said means as best appears in Figs. 1-3, 5, 6, 12-14 comprising a lever member 75 pivoted on the screw 62 forward of the lever 60. To said lever 75 is pivoted at 76 an arm 77 having a forwardly off-set portion 7 7 at its left or free end, the off-set portion being provided with a slot 78 which is adapted to coiiperate with a ,detent lug or nose 79 projecting forward from the inner end of a lateral pin the hook 65. When the hook is inoperative, however, the nose 79 is in rear of the slot 78 and does not engage therewith. The arm 77 has pivoted to it at 81 an upstanding arm 82 having a rearwardly bent top portion which carries an adjustable stop screw 83 that overlies a notch 60 cut in the lever 60 and operates to limit upward movement of said lever in respect to the arm 77. The arm 82 is provided with screw pin 85 projecting forward from an extension 7 5 0n the arm 75. Said screw 85 and slot 84 give a lost motion connection between the arms 75 and 7 7 A pin 86 projecting from the rear of the arm 75 is adapted to cotiperate with a notch 87 cut in the lower edge of the arm 60 to enable the lever 60 to a slot 84 which is engaged by a v 80 on the inner face of pick up the arm or lever 75 during chute restoring movements of the parts. Normally the arm 77 tends to drop dovs on its pivot 76 as a center until arrested by the engagement of the top of the slot 84 with the screw 85. Means are provided for changing this relative normal' relationship between the arms 77 and 75, said means comprising a .cam arm 88 pivoted at 89 to a downward extension 7 5 on the arm 75, said arm 88 being provided at its upper end with a'curved or cam edge 90. A stop pin 91 on the extension 75 limits movement of the arm 88.toward the right and when said arm is in contact with said in the arm 77 may swing downward until it is arrested by the slot 84 and screw 85. On swinging the arm 88 toward the left, however, be done by a finger piece 92 fixed to thearm and projecting forward therefrom, the cam 90 contacting with the under face of the arm 77 will swing said arm upward on its pivot 76 and hold it raised with relation to the arm 7 5. As a result of swinging the arm 77 upward by this movement, the slot 78 is set above and out of register with the nose 79, as in Fig. 6. The purpose of this operation will be hereinafter explained.

When the cam 90 is swung to its rightward position the parts will normally be related as in Fig. 5 and if at this tlme the release lever 25 be pulled'forward or operated to a sufiicient extent the hook 65 will swing forward on its pivot 66, releasing the lever 60 and causing the nose 7 9 to enter the slot 78 in the arm 77. As a result of this operation the lever 60 will be free to swing upa ward on its pivot 62 until arrested by the lines 32, 33

' screws 94: (Figs. 1 and 5). The

engagement of the notch 60 with the screw stop 83, this screw stop being fixed at this time by reason of the engagementvof the detent or nose 79 with the slot 78. The upward movement of the lever 60 results in a corresponding upward movement of the link 58, permitting the lever 47 to swing freely on its pivot and the chute or paper controlling device to slide downward on the guide ways 29 until arrested by the engagement of the notch 60 with the stop 83 at which time the parts will be in the relationship shown in Figs. 11 and 12. The 'new position of the chute is indicated by dotted in Fig. 1. Assuming that there is a work sheet (indicated in Fig. 1 by the reference letter 2) in the chute at this time and clamped or controlled by the spring fingers 41,.the paper as a result of this downward drop of the chute will be advanced downward over a guide plate 'or apron 93 fixed to the slide bar 4 between the posts 29 by parts are so adjusted and regulated that proportioned,

is sufliclent to advance the this movement paper until the first line thereon is in posiwhich may conveniently tion for receiving the writing. If now the lever 25 be released it will return to normal position, permitting the parts that control it to return also to normal position, the hook and connected parts being restored b the spring 68. As a result the detent 79 wil disengage from the slot 78 permitting the arm 77 to be raised slightly by reason of the upward pull due to gravity on the lever 60 actlng through the screw stop 83. This movement of the arm 77 will continue until the bottom of the slot 84 engages with the pin 85, thus picking up the lever which will be revented from swinging upward by the hoo tion. quick enough to engage said lever 75. The parts will now be in the position shown in Fig. 13. From an inspection of this figure it will be observed that the slot 78 has been carried up so far that it is out of register with the detent 79. One or more lines may now be written on the sheet 39 and if more than one line is written the sheet may be advanced between the lines by operating the usual line space lever, causin the platen to turn and feed the paper t rough cooperation of the pressure rolls 11 and 12 with said platen. The writing having been finished the operator pulls forward on the release lever 25, throwing ofi the pressure rollers and causing the hook 65 to disengage from the lever 75. The detent 79 being out of register with the slot 78 will pass under the arm 77 so that the parts are entirely free and the chute may drop down of its own wclght until arrested by the stop 53, its new position being indicated by dotted lines 32", 33" in Fig. 1. When the chute is thus arrested the operating arts will be in the position illustrated in ig. '14, this movement causing a continuous advance of the work sheet p far enough to bring it to the point where it may be severed by means of theserrated edge 15*. In some classes of work it is necessary, prior to restoring the chute operatlng parts to normal positlon, to'throw ofl the s ring fingers 41, thus freeing the paper within the chute from itscontrol. .To return or reset the mechanism the operator depresses the finger piece 61, causing a restoration of the operating parts from the F 1g. 14 to the," Fig. 5 positlon and lifting the chute from its lowermost to its upper or normal position. movement of the through the slot 8 the arm 75 and the arts the lever 60 acting and pin 86 will pick up parts supported thereby and restore them to the normal position, the hook 65 snapping over the lever 60 and arm 75 when they have been moved downward far enough. The parts will now be set ready for a repetition of the operations above outlined.

It will be observed that when operated as 65 which returns to normal posl- A During the return described, the novel mechanism permits two successive advance movements of the chute and the work sheet p before the chute reaches its downward limit of movement. In other words, the movement of the chute from uppermost to lowermost position is divided, into two stages or steps between which the writing of the sheet controlled by the chute takes place. If it be desired to advance the work sheet continuously by a single movement of the chute from its uppermost to-its lowermost position, this may be done by setting the cam member 88 in the Fig. 6 osition. This setting of the cam member li ts the arm 7 7 so that the slot 78 is set out of register with the detent 79. As a consequence if the lever be operated to free the arms 60 and 75 from the control of the hook 65 the arts will move uninterruptedly from the Fig. 5 to the Fig. 14 position, causing a corresponding advance movement of the sheet controlled by the chute.

The said sheet :0 is comparatively narrow and in some classes of work a wider record sheet 12 (Fig. 1) is employed in addition, this record sheet being controlled at its marginal portions by the rolls 21 and the outside paper fingers 17. A carbon may be interleaved between the sheets p and p or if preferred the back of, the outer sheet 71 may be carbonized so that the print on the outside or bill sheet p may be duplicated on the underlying record sheet. It will be understood that this record sheet 79 is not controlled by the chute and will only be advanced throu h turning movements of the platen which ta e place independently of the chute just as feed movements of the chute are independent of the platen. As a consequence, entries on the record sheet will be condensed. While the novel mechanism above, described is primarily designed for use in connection with bill sheets or receipt forms and record or day sheets, such as are used in the post ofice systems of foreign countries, Hungary, for example, it will be understood that the principles of the invention will readily lend themselves to employment in connection with other characters of typewritten work.

It will be observed that by my present invention there is provided a supplementary paper feed device, paper holder, which is adapted to feed the paper over the platen first to one extent, and subsequently to a further extent, the first feeding movement feeding the paper, work sheet or blank into positlon to receive the first line of writing, and the subsequent feeding to said further extent advancing the completed blank out of the machine; that means are provided "for causing the chute or paper holder ess, said means comprising in the present chute, paper carrier or' to feed paper over the v platen, while it and the carriage are motioninstance a finger piece or key that is mounted independently of the chute or paper holder'but is connected to transmit motion thereto; that the chute, holder or carrier maintains constant relationship with the work sheet or blankduring the supplementary paper feeding operation; that thisconstant relationship is maintained in the present instance by releasable means which holds the paper in fixed relationship with the aperfeed device or holder, said releasa le means comprisin a pair of clamps and a finger. piece efi'ectlve to release said clamps; that the chute or paper carrier is in the pres ent instance gravity-acting and is adapted to drop a plurality of times whereby the paper 1s fed over the platen successively a plurality of extents; that associated with the gravity-acting paper carrier or device is hand controlled latch mechanism for releasing said paper carrier, this latch mechanism being un er the control of a finger piece, in *the present instance the finger piece 25; and that the hand controlled latch mechanism is ada' ted to release the paper carrier successive y a plurality of times for advancing thev paper at desired intervals a pluralityof predetermined extents.

Various changes may be made without dearting from my invention.

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

- 1. In a typewriting machine, the combination of a platen, a paper feeding device separated from the platen, and means for automatically controlling said device to advance the aper step by step over the platen while the Bitter is stationary. 2. In a typewriting machine, the combination of a platen, a movable paper chute, means on said chute for holding the paper, and means automatically operating on said chute to advance it and the paper step by ste 9 In a typewriting machine, the combination of a carriage, a platen, a paper advancing device movably mounted on the carriage, and means for bodily moving said device toward the platen to advance aper over. and around the platen while sai carriage and said platen are motionless, said means comprising a paper holder and a key or finger piece mounted independently of said holder.

4. In a typewriting machine, the combination of a carriage, a platen, a chute mounted on the carriage, and means for causing the chute to feed paper over the platen while the carriage and platen are motionless, said means comprising a key or finger piece mounted independently of said chute.

5. In a typewriting machine, the combination of a platen, a paper clamping device arranged to move bodily toward and from the platen independently thereof, means for controlling movements of said clamping device to feed paper over the platen, and means for rendering the clamping device inoperative.

6. In a typewriting machine, the combination of a rotary platen, a clamp carrying paper and arranged to slide toward and from the platen, means for controlling the sliding movements of said clamp whereby the paper it carries may be fed over the platen, and means on the clamp for rendering it inoperative on the work sheet which it carries.

7. In a front-strike typewriting machine, the combination of a rotary platen, a chute arranged to slide up and down at the rear of the platen, means for controlling the sliding movements of said chute, and means on the chute for causing the work sheet carried thereby to be fed when the chute is moved downward.

8. In a typewriting machine, the combination of a carriage, a platen, a track-way on the carriage, av paper clamping device slidable on said track-way, and means operating independently of movements of said carriage and platen for controlling the sliding movements of said clamping device.

9. In a typewriting machine, the combination of a carriage. a platen a track-way on the carriage, a chute on the track-way, and means for controlling the chute to feed paper over the platen.

10. In a typewriting machine, the combination of a carriage, a platen, a track-way on 'the carriage, a chute on the track-way, a lever having lost motion connection with said chute, a second lever, a link connecting said second lever with the first named lever, and devices for controlling said second lever.

11. In a typewriting machine, the combination of a carraige, a rotary platen, feeding devices cooperative therewith, releasing devices for said feeding devices, a supplementary, paper feeding device movably mounted on said carriage and controlling a work sheet independently of said platen, and means connected with said releasing devices for automatically operating said supplementary paper feeding device, said supplementary paper feeding device comprising a holder which maintains constant relationship with said work sheet during a supplementary paper feeding operation.

12. In a typewriting machine, the combination of a carriage, a rotary platen, feeding devices cooperative therewith to feed 'a work sheet, releasing devices for said feeding devices, a supplementary paper feeding device movably mounted on said carriage and,controlling a second work sheet independently of said platen, and means connected with said releasing devices for automatically operating said supplementary nation of a platen, a

memos paper feeding device, the first named feed ing devices cooperating with the platen to advance both work sheets independently of said supplementary device, said supplementary paper feeding device comprising a holder which maintains constant relationship with said work sheet during a supplementary paper feeding operation.

13. In a typewriting machine, the combination of a platen,paper feeding devices cooperative therewith, releasing devices for said paper feeding devices, a device for feeding paper independently of the platen, and means for automatically controlling said independent device through said paper releasing device's, said independent device comprismg a holder which maintains constant relationship with said work sheet during a supplementary paper feeding operation.

14. In a typewriting machine, the combination of a carriage, a platen, feeding devices cooperative with the platen, devices for said feeding devices, a trackway on the carriage, a chute on the trackway, and means for controlling the chute to feed paper over the platen, said last named devices being automatically controlled by said paper releasing devices.

15. In a typewriting machine, the combination of a platen, paper feeding devices, releasing devices for said paper feeding devices, a paper feeding chute movable independently of the platen, and operative connections between said chute and said releasing devices.

16. In a typewriting machine, the combination of a platen, paper feeding devices, releasing devices for said paper feeding devices, a paper feeding chute movable independently of the platen, hand controlled devices for moving said chute up and down, and operative connections between said hand controlled devices and said paper releasing devices.

17. In a typewriting machine, the combipaper feeding chute independent of the platen, paper feeding devices cooperative with the platen, releasing devices includin and means for varying the extent of movereleasinga hand operated lever,

ment of said chute, said varying means being controlled by said lever.

18. In a typewriting machine, the combination of a platen, a paper feeding chute,

vmeans for permitting predetermined extents of movements of said chute to feed paper over the platen independently of turning movements of said platen, and means for varying the feeding movements of said chute.

19. In a typewriting machine, the combination of a platen, a device movable to feed paper over the laten independently thereof, and releasab e means for holding the paper in fixed relationship to said paper feeding device, said means compris-' ing a pair of clamps and a finger piece effective to release said clamps.

20. In a typewriting machine, the combination of a platen, a device movable to feed paper over the platen independently thereof, and releasable means for holding the paper in fixed relationship to said paper feeding device, said releasable means comprising a clamping spring, and a hand controlled cam device for rendering said spring inoperative.

21. In a typewriting machine, the combination of a platen, a device movable to feed paper over the platen independently thereof, and means for controlling the movements of said device, said means comprising a lever, a second hand actuated lever, a link connecting said two levers, and a hook for retaining said actuated lever in normal position.

22. In a typewriting machine, the combination of a platen, a device movable to feed paper over the platen independently thereof, and mea us for controlling the movements of said device, said means comprising a hand actuated member, a detent for .retaining said member in normal position, and means for rendering said detent inefiective.

23. In a typewriting machine, the combination of a platen, releasable paper feeding mechanism cooperative with the platen, a device movable to feed paper over the platen inde endently thereof, and means for controlllng the movements of said device, said means comprisin a hand actuated member, a detent for retaining said member in normal position, and means connected with sald mechanism for throwing said detent out of use.

24. In a typewriting machine, the combination of a platen, a paper feeding chute, and devices for operating the same comprising a pivoted arm, a pivoted detent or hook cooperative with said arm, a second arm mounted on said first-arm, and supplementary detent devices cooperative with said second arm. Y

25. In a typewriting machine, the combination of a platen, a paper feedingchute, and devices for operating the same comprising a pivoted arm, a pivoted detent or hook cooperative with said arm, a second arm mounted on said first arm, supplementary detent devices cooperative with said second arm, a feed roller cooperative with the platen, a release lever for said feed roller, and connections between said release lever and said hook.

feeding chute, and devices for operating the same comprising a pivoted arm, a pivoted detent or hook cooperative with said arm, a second arm mounted on said first arm, supplementary detent devices cooperative with said second arm, a feed roller cooperative with the platen, a release arm for said feed roller,

and connections between said release arm and said hook, said supplementary detent devices'being thrown out of efiective re1a I tionshipafter a prior releasing operation of said hook during the course of WhlCh prior operation said supplementary devices.

, mounted on said first arm, said supplementary devices comprising a locking nose on said hook which cooperates with a slot in said second arm.

28. In a typewriting machine, the combination of a platen, a paper feeding chute,

and devices for operating the same compris-.

ing a pivoted arm, a pivoted detent or hook cooperative with said arm, a second arm mounted on said first arm, said supplementary devices comprising a locking nose on said hook which cooperates with a slot in said second arm, and a cam arm on said first recited arm for setting said slot out of register with said locking nose.

29. In a typewriting machine, the combination of a carriage, a rotary platen, a main feed roller, releasing devices therefor, marginal feed rollers independent of said releasing devices, a paper controlling device movably mounted on said carriage for feeding a narrow sheet betweenthe platen and the main feed roller when the latter is released, and mechanism connected to said releasing devices for controlling said movable device. V

30. In a ty'pewriting machine, the'combination of a platen and a paper-carrier adapted to drop a plurality of times, where by the paper is fed over the platen succescarrier, and hand-controlled latch mecha-' nism for releasing said paper-carrier successively a plurality of times for advancing.

the paper at desired intervals a plurality of predetermined extents.

33. In a typewriting machine, the combination of a platen, a paper carrier, hand operated devices afiording successive drops of said carrier, and stops controlled by said devices for determining the extentof said drops.

In a typewriting machine, the eombination of a platen,

. said carrier against movement due to gravity, stops normally ineffective, and means controlled by hand to unlatch said latch and render said stops effective to determine the extent of movement of said carrier when released.

35. In a typewriting machine, the combinatlon of a platen, a paper carrier, a nor-' mally efi'ectivelatch, means for unlatching said latch, and stop devices normally-ineffective, said stop devices becoming automatically operative to hold said carrier against movement between the operations of unlatching said latch and restoring it to its operating position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FERNAND LAFFAY. .Witnesses:

DE WITT C. PooLE, Jr., HELEN R. Tom).

Images