US1105184A - Type-writing machine. - Google Patents

Description

C. B. OOROORAN. TYPE WRITING MACHINE. APPLICATION FILED AUG.14, 1912.

PatentdJuly 28, 1914;

N d: B

INVEN {Md (2 Q E? m 'ATTORN 1mm, a citizen of i r for .lfsci in the county of Of: the Work-sheet fouling" in point. As urneuns commune n. \eoiufeonen, or new orrrcs.

some, n. ri, esszsrton T0 tmnnnwoon TYPE- 'WBI EER CQMPANY, 01? ETEVJ YORK, N. Y., CQRPORATION OE BELAW'ARE .rrsnwnrrrns emeritus; I

- Specification oij Letters Fetent. im utation nee ziugust ii,

- Patented duly 2s, rem. 15312. Serial No. iiiifliid.

{TO-(ZZZ whom it may cam m;

Be it knownthst 1, Consumers Conco- ,he United, States, residing inthe borough of New York, have gleeful improvements in 'llype-lVritmg Machines, otiwhich the following is a speclficu; ,.This invention relates to the papercontrolling devices of typewriting machines, and its rincipel object is to provide means lituting the insertion and gaging OI the work sheet or sheets.

" When introducing Work-sheets reemverdly 3 at the front side with lower edge foremost of the platen of a front-strike writing machine, *some-diiliculty has been encountered because of the usuztl 'srrun ement of the ribbon vibrutorin :t'ront of t e platen and almo sten contact therewith. There is liability upon the ribbon vibra ion-end to some extent the same is true; of [the usual center les'rglwhich is jurranged just below the print- I I for overcoming this 'diiiiculty, :1 have arranged a paper-guiding chute et de-fiector. e.t the front of. the platen, rigidly placed to one side of the machine so torus-to be entirely to one side of both the i type guide and the ribbon'vibrator; sothst,

by sunning the carriage over, say to the ex- 'treme limit ofits leftward trevel, the worksheet, may be conveniently introduced between the guiding chute and the platen, and run backwerdly around the un er side of the platen, and then gripped by the feed rolls returned to the right, to begin t said chute may permit the carriage to be set for or'deVicen-Whereupon the corriu 'e may be he line of writing. In this way, all liability of fouling of the work-sheet upon the ribbon guide or thetype guide, is avoided. I E

For the purpose of the invention, there may be used e'carnoge of superfwidth in proportion to the width of the work sheetor, in other words, a machine having an extin-wide carriage may be employed for Writing upon a, sheet of ordinary size. This will enough to the left to permit the introduction in this way of a sheet of common size. The devices worksheet he only as wide as the sheet; and be of a length substantially equal: to the lengthof the ordinury'printing need to Bronx, city of New York, New York and State of inyented certain new and.

guide for the type- I field on the platen. A wide carriage machine f 11153 be readily employed for introducing 1 on writing upon worksheets of ordinary width, whenever it is desired to introduce the sheets at the front of the platen; and,

i also be employed for writing in the ordinary ,1 way upon extra-wide sheets introduced in j the usual manner at the rear of the platen.

Under the arrangement of a wide cerria e referred to in this application, wherein t e "front introductory chute is arranged completely at one side of the printing center for use only when the carriage is at one extreme end of its travel, the )laten is shown as having a. surpluslongitu final portion in addition to that portion thereof comprising the printing field adapted to move into and out of the pa er-introducing part of said front chute. 'lhat surplus rtion, while an extension of said printing ield and serviceable therewith in providing the Wide printing field of the platen for employment in conjunction with the usual rear paper-feed mechanism, plays no part in the operative association between the front introductory chute and the printing field and feed de- VIGES thGIQfOI', and doesnot in the carriageshifting movements at any time enter the paper-guiding path of said front chute. Hence the printing curries work-sheets received from the front introductory chute, may be distinguished as the front feed printing field of the platen, in contradistinction to the Wide field of the entire platen, for use with the rear feeding devices. Said de'fiector'or chute, in its fixed position, in which it is spaced apart from the platen, is always capable of coiiperating with guiding devices mounted on the carriage itself and extending around the under side of the platen to the front thereof; said guidmg platen, but being releasable, so that they may be dropped to a position to coiiperat-e with said chute. These guiding devices may comprise the usual rolls which run upon the under surface of the platen, and a. guiding plate or apron which curves around the under side of the platen, both said rolls and apron being mounted so as to be capable of being dropped downwardly from the platen in order to be brought into silinement or operative register with the chute or deflector. I ,Breferubly the releasing of the pressure field of the platen which devices being normally close to the whenever required, the same carriage can rolls and platen apron are effected automatically by moving the paper carriage to the extreme of its run; a cam upon the machine frame being engaged by a roll-releasing pin upon the carriage; and the apron being then brought to position to cooperate with said chute.

Above the platen is provided a gaging tablet upon which the leading edge of the work sheet may be gaged after its bottom edge has been inserted around the platen as aforesaid; and while the sheet is held to the gage, the bottom pressure rolls may be restored to the platen so as to hold the sheet and permit the latter to be advanced indepcndently of the gage. Pressure rolls are also arranged to run upon the platen between the platen and said gage tablet, and the latter is preferably cut away to afford a clearance for the roll structures. The gage tablet is adjustable along the platen and isalso movable by means of a finger-piece upwardly away from the platen (together with the top rolls) and to permit the introduction of a work sheet between the platen and said rolls and tablet.

Other features and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective plan of an Underwood widecarriagc front-strike writing machine provided with the present improvements, and showing the parts ready for the insertion of sheets at the front of the platen. Fig. 2 is a sectional side elevation, showing the top pressure rolls and the top gage plate swung away from the platen to permit the work sheet to be carried back over the platen. At this figure, the lower pressure rolls are shown in working positions, Fig. 3 is a front elevation of a portion of the pressureroll mechanism, showing particularly the guides and supports for the paper-guiding apron which curves around under the platen.

Fig. 4 is a view similar to Fig. 2, but showme; the top feeding rolls and paper-gaglng table or tablet in normal positions; the bottom pressure rolls being, however, released,

together with the paper-guiding apron, for the insertion of work sheets at the front of the platen. Fig. 5 is a front elevation, showing details of construction of mounting of the top pressure rolls and paper gage plate. Fig. 6 shows a fragmentary front view of a cam fixed on the typewriter framework in the path ofa projection which is mounted on a rotary rod on the typewriter carriage, whereby the cam, by reason of the travel of the carriage in letter fecding direction, may rotate the rod for the purpose of releasing the bottom pressure rolls and the bottom paper guiding apronwhen the carriage reaches position for cooperation with the sloping paper-guiding plate fixed on the framework in front of the platen, as

The syst m of pressure rolls running upon the under side of the platen to carry the work sheet around the same may be of the usual construction, comprising rear rolls 10 mounted on shaft 11, and front rolls 12 mounted on shaft 13; shaft 11 being carried on arms 14, and shaft 13 being carried on arms 15; all of said arms journaled 0n tie-rod 6. Upon said rod 6 are also mounted leaf springs 16, 17 to engage respectively the arms 14, 15, whereby the rolls 10, 12 are pressed against the platen. The pressure rolls may be released in the usual manner by means of a key 18 pivoted at 19 on the platen frame and connected by a link 20 to an arm 21 on rock shaft 22, which is j ournaled on the platen frame and extends along the platen between arms 23 formed on said roll-carrying arms 14, 1,5; the arms 23 normally occupying recesses 24. lVhen said rock shaft 22 is rotated, the arms 23 are forced apart, as at Fig. 4, thus pulling down '1 the arms 14, 15, together with the rolls 10, 12, and leaving a clearance between said rolls and the platen 1 for the introduction and adjustment of the work sheets. Owing to the cylindrical shape of the shaft 22, the arms 23 are mechanically locked apart in their released positions at Fig. 4.

One of the objects of the invention being to facilitate the introduction of the work sheets at the front of the platen, the guiding apron 25, which curves around the under side of the platen in conformity therewith, is arranged to drop, especially at its front edge, whenever the pressure rolls 10, 12 arereleased, as at Fig. 4, so as to leave an openingof substantial size between the platen. and the front edge of said guiding apron for the introduction of sheets. This guiding apron may be unattached at either of its front and rear edges; but it may have at each end a guiding yoke 26 to set down loosely over the rod 6, and at its front and rear edges it may rest on small rolls 27 on the shafts 11, 13; this guiding plate being recessed at its front and rear edges at 28 to accommodate the pressure rolls, Fig. 3. By means of books 29 at the ends of this paper apron catching under arms 15, said apron is drawn down at its front edge to the Fig. 4 position when the pressure rolls are released, 'so that it registers with or falls slightly be- I low a long sloping introductory guide plate 30 fixed upon the machine frame preferably at the left hand side of the usual type her system 31, Fig. 1.

When the carriage is olmwn to the left, as at Fig. l, and the parts are in their released ositions in Pip. 42, it is a. simple matter to rep in a work sheet bottom edge foremost, es indiceted by the arrow at l, the plate 3il'coiipemting with the platen to fozm a nerrowlttg throat to receive the sheet; anal the apron 55: cooperating with the under side of the platen to form a' continuation of said throat to end opwasrclly as as may he desired; the lower edge of the paper shelf being preferehly curved back at 32 to prevent the risedge of the Work sheet from catching thereon. The introductory guiding plate may project from. a bracket 33 fixed by means of screws to the framework.

In operation, the carriage is movecl to the left as for as it will go, thereby bringing into use the introductory guide plate or chute 30 at the front of the platen. During this movement of the carriage, pin or log 34 projecting from the rolhreleesing; shalt 22, Fig. 6', engage a. fozeol cam 35 and ride up along the some, Fig. '2', thereby rocking the shalt 2% and releasing the rolls and dropping the paper apron to the Fig. position; seiol cam losing preferably mounted upon an arm 86 extending from bracket ehcl having a screw 3? to bear upon the framework 88 of the typewriter to adjust the cam 35 to the proper position. The operator then inserts the Work sheet 01' sheets, bottom foremost, shown by the arrow at between the plate 30 and the pslten l, and then baclcwsi'dly between the platen end the apron 25, then upwardly along the paper shell. 5. Then the operator adjusts the top edge of the work sheet 39 to a top gage l0 and sicle l provnle. upon o tablet 4-2 arranged above the platen, so that the work sheet is adjusted eclgewise in both directions. Without disturbing this acljustmeht the operator may run the coii'isge 7 heel: to relehsc the pin 3% from the com 35, so that the springs l8, 17 may restore the 1.31essuro rolls 10, 12 and secure the WOl'lC sheet 39 Where adjusted; whereby the operator has snocecdecl in bringing the sheet mechanically to o precletemi'linecl position with reference to the printing point on the platen.

The lug 3 it will he" umlerstoocl, is set so that it does not, While riding along the cam 35, rotate the a'cleee p; shaft 22 to the mechzmicel lochii'zg' position lhel'eo'l', soon F 4, but falls short of doing so, (Fig. 7) so that a more setorn movement of he cmriage 7 to the right will permit the springs 16, 17 to restore the presents rolls and goldlog plate The operate? now depresses a lever 43in thr w up the pzessure rolls guide the sheet bechwerclly ll- (to other with the top gage tehleAQ) to clear tie platen, so that the top edge of the Work sheet 39 may he thrust backwarllly shove the platen and below the rolls 44,- as seen at Fig. 2'; the Work sheet being hold fast against the plates by the rolls 10, 12. The operator then restores the finger lever 43 to bring rolls down upon the Work sheet to press it against the platen; whereupon the Writing of the work sheet line by line may peoceei in the usual manner. The finger lever 43 is fixed upon 2. rock shaft e5 mounted in hearings or brackets 16 fixed upon the platen frame emls 3. l. Along the under side of the rock shaft 25 extends 3,1011. gituclina-l groove 47, Fig. 5, into which cylindrical keys 'S are pressed by springs 49, to hold: the rock shaft yleldingly in normal position.

The to rolls 4A are mounted means of arms upon brackets 51 which have arms 52, 53 perforated to fit on the rock shaft 45; the brackets being held in proper relation to said rock shaft by keys 54 and spl'ings 55; each bracket being releasable by pressing downwardly on extension 56 formed on the arm yielding and the tension of each spring may he regulated by means of a thumb screw 57 threaded through an ear 58 providecl uponthe bracket 5]. and hearing" down on the arm 50. The plate or tablet 42 is cut owey between its enols at 59- for the prlnciosl s'to make room for the rolls 4 we screws '5, so that said rolls may hear down upon a Work-sheet that has previously been "adjustecl to the plate in the manner already Each roll bracket 51 1s adjusts explained. able along the rock shaft 45 independently the other.

The plate or tablet 42 is supported at or new its ends by a pair of brackets 60 which are similar to the bracket 51, and are held to the rock shaft 15 by springs and similar to the springs 55 and keys 5%. Each bracket has on to which an em: '31 is :uljustahly connected by a pivot Gal. The gage tablet 2:2 is connected to the ears e1 by screws 62 passing through slots in the tablet a'ncl threaded into the ears 61, thereby permitting up filial down adjustment 0-5: the tablet relative to the brackets 60. The tab let is also ahgulerly adjustable with the eai's 81 about the pivots 64; and the joint is made light to hold firmly the papertahlet in any position to which it may be adjusted on said pivot. The paper table is therefore independently adjustable in normal position to give it the right re lationship to the platen; and it preferably may he swung up around the rock shaft 45 independently of the rolls l4; while it may at any time, by depressing the arm 43, be swung up to the Fig. 2 position together The arms 50 are portioh of the length of the plate, so

1&0

with the rolls 44. Moreover, the bracket 60,

together with the gaging tablet, may be adjusted along said rock shaft 45 to permit work to be done at different parts of the sheet being always under the control of the 0 rolls 44, so that they are properly fed line by line astheplaten rotates. When the record sheet 39 is employed, the work sheets or statements 39 do not need to be .introducedbetween the rolls 44 and the platen 1, but instead may ride up over the top of the gage 40. However, it is obvious that the rolls 44 may be swung up while the bottom rolls 1O 12 are in workin ositions as at Fig.2, so that the bottom rolls may hold the record sheet 39, while the top rolls 44 are released to admit the statement 39.

The work sheet 39 may,-of-course, consist of several blanks with interposed carbons.

Variations maybe resorted to within the scope of the invention, and portions of the improvements may be used without others. Having thus described my invention, I claim: Y

1. The combination of a revoluble platen, pressure rolls running upon the under side of the same, means to release said pressure rolls, a paper-guiding apron curving around the underside of the platen and connected to be dropped when said rolls are released, and a separate sloping stationary deflector or guide forward of the platen and permanently spaced apartfrom the platen in'position to cooperate with said apron, when the latter is dropped, to guide the bottom edges of sheets downwardly and backwardly under the platen.

2 The combination of a revoluble platen, pressure rolls running upon the under side of the same, means to releasesaid pressure rolls, a paper-guiding apron curving around the under side of the platen and connected to be dropped when said rolls arereleased, and a separate stationary sloping deflector or guide forward of theplaten and permanently'spadednpart from the platen in position tdcoiiperate' with said apron, when the latter is' dropped, to guide the bottom edges of sheetsldruvnwardly and backwardly under the platen; said sloping deflector or shell mounted upon the fixed frame of the machine, and said platen mounted upon a carriage.

3. The combination of a revoluble platen, pressure rolls running upon the under side of the same, means to release said pressure rolls, a paper-guiding apron curving around the under side of the platen and connected to is dropped, to guide the bottom edges. of

sheets downwardly and backwardly under I the platen, said sloping deflector or shelf mounted upon the fixed frame of the machine, and said platen mounted upon a carriageg said deflector being mounted at one side of the printing point, so that it may 00- operate with said apron when thecarriageis shifted to one extreme of its run,

4. The combination of a revoluble platen,

pressure rolls running upon the under Side of the same, means to relase said pressure rolls, a paper-guiding apron curving around the under side of the platen and connected to be dropped when said rolls are released, and a separate sloping deflector or guide forward or" the p ten and normally ineflec-'- tive but in position to cooperatewith said apron, when the latter is dropped,'to guide the bottom edges of sheets downwardly and backwardly under the platen, said sloping deflector or shelf mounted upon the fixed frame of the machine, and Said platen mounted upon a carriage; said deflvtor'b'eing mounted at one sideof the printing point, so that it may cooperate with. said apron when the carriage is shifted to one extreme of its run; said roll-releasing means including a art automatically brought into conjunction'with a fixed part on the frame when the carriage is .so shifted for operation thereby.

5. In a typewriting machine, the combination with a carriage, of a revoluble platen mounted on said carriage, feed rolls to run upon the platen, yielding means upon said carriage normally pressing said rolls against the platen, a finger-piece upon said carriage to release said rolls, means upon the framework of the machine to release said rolls when the platen has been carried beyond the printing field, whereby when the carriage is in the printing field the fingar-piece may be manipulated at any time to release the sheets, and whereby when the carriage has traveled beyond the printing field the work-sheet may be pulled out and another substituted without manipulating said fingenpiece, and a guide mounted upon the frame work of the machine to cooperate with the platen when the Carriage has traveled to roll-releasing position, for cooperalion with said platen to guide sheets introduced bottom end foremost down around the fron s de o the platen- 6. The combination of a revoluble platen, pressure rolls running thereon, a carriage for said platen, means dependent upon the movement of the carriage for automatically releasing said rolls, paper-guiding means extending around said platen and connectedto be released together with said rolls, and a fixed loping deflector or guide so mountedand permanently spaced from the platen that it can cooperate with said paper-guiding means whenever the carriage is moved to position to release said rolls.

'7. The combination of a carriag a revoluble' platen, pressure rolls running on the platen, a fixed cam, roll-releasing means'on the carriage and including a part to engage said fixed cam, paper-guiding means upon the under side of said platen, and a slopingdefieetor or chute upon the machine frame so mounted and permanently spaced from the plate that it can cooperate with said paper'guiding means whenever the carriage is moved to roll-releasing position.

8. The combination of a revoluble platen, a paper-gaging tablet in proximity to the platen above the printing point and pro vided with means movable into and out of position to gage the top. edge of a work.- sheet, means in front of and under the platen for guiding a sheet bottom foremost downwardly and backwardly around the platen, preparatory to gaging the top edge of said sheeton said tablet, and pressure rolls to run on the platen below the printing point, movable away from the platen to permit the insertion and gaging of the sheet,

and returnable to the platen while the sheet is held against the 9. The combination of a revoluble platen a paper-gaging; tablet in proximity to the platen above the printing point and providedwith means to gage the top edge of a worksheet, means in front of and. under the platen for guiding a sheet bottom foremost downwardly and backwardly around the vlaten )1'6 )arator to a 'in the to) ed "e l a l Y 2: a: 23

of said sheet on said tablet, pressure rolls to run on the platen below tie printing point, movable away from the platen to permit the insertion and engagement of the sheet, and returnable to the platen while the sheet is held against the paper-gaging tablet, a carriage upon which said platen is mounted, and means dependent upon the movement of said carriage for automatically controlling said pressure rolls.

10. The combination of a revoluble platen, a paper-gaging tablet in prozrimity to the platen'above the printing point and pro vided with means to gage the top edge or": a work-sheet, means in front of and under the platen for guiding a sheet bottom foremost downwardly and backwardly around the platen, preparatory to gaging" the top edge of said sheet on sand tablet, pressure rolls to run on the platen below the printing point, movable arm from the platen to permit the insertion an engagement of the sheet, and

returnable to the platen while the sheet is held against the paper-gaging tablet, a carriage upon which said platen is mounted, and means dependent upon the movement of said carriage for controlling-said pressure "yo rolls; said paper-guiding means including a guide or chute mounted upon the machine frame in position to cooperate with a menu ber mount-ed upon the carriage in proximity to the platen when the carriage is moved 'to roll-releasing position,

11. The combination of a revolulole platen, a paper-gaging tablet-in proximity to the platen above the printing point, means in 5 front of and under the platen for guiding a so sheet bottomv foremost downwardly and backwardly around the platen, preparatory to gaging the top edge or" said sheet on said tablet, pressure rolls to run on the platen below the printing point, movable awayee the platen while thosheet is held against the gage, a carriage upon which said platen is mounted, and means dependent upon the so movement of said carriage for controlling said pressure rolls; said 'aperguiding; means including a guide or oiute mounted upon the machine frame in position to co-' operate with a member mounted upon the es carriage in proximity to the platen when the carriage is moved to roll-releasing position; said ge-plate mounted for movement away from the platen, to permit the leading edge of the work sheet to be passed bac'kzoo wardly between the tablet and the platen. h

12. The combination with a revoluble platen, of a platen frame, a reel shaft mounted on the platen frame and extendinglos along the platen, apapengaging tablet mounted on said rock-shaft, a key com eeteol' to said rook-shaft to swing said tablet away from the platen, and means to hold said rocloshalit in normal position. v

13. The combination with a revolulole platen, of a platen frame, a rock-shaft mounted on the platen frame and extending along; the platen, a papengaging tablet mounted on said rock shaft, a key connected to said rock-shaft to swing said tablet away from the platen, means to hold said reelsshat't in normal position, and a sheet -gniding pressure roll also mounted on said reclshait to be swung with said tablet,

l t. The combination with a revoluhle platen, of a paper-gaging tablet mounted above the platen, and pressure rolls be tween the tablet and the platen.

15, The combination with a revoluble platen, of a paper-gaging tablet mounted above the platen, and pressure rolls between the tablet and the platen; said tablet cut its ' away for clearance for the pressure rolls.

to, The combination with a platen, of a ee paper-gaging tablet adjustably pivoted onsaid ears and firmly held thereby in adjusted positions, a fingerpiece to rock said shaft together with said tablet away from the platen, and means to ho d Said rockshflft 111 normal position.

17. The combination with a platen, of a rock-shaft extending therealong and having a longitudinal groove, brackets h g spring-pressed keys engagin Said gro and rotatable upon said roc shaft inde= pendently thereof, ears on said brackets, a paper-gaging tablet adjustably pivoted on said ears and firmly held thereby in adjusted positions, a finger-piece to rock said shaft together with said tablet away from the platen, means to hold said rock-shaft in normal position, and roll-carrying arms also mounted on said rock-shaft to be swung away from and back to the platen together with said gaging tablet.

18. The combination with a platen, of a rock-shaft extending therealong and having a longitudinal groove, brackets having spring-pressed keys engaging said groove and rotatable upon said rock-shaft independently thereof, ears on said brackets, a paper-ga ing tablet adjustably pivoted on said ears and firmly held thereby in adjusted positions, a finger-piece to rock said shaft together with said tablet away from the platen, and means to hold said rock-shaft in normal position; said tablpt adjustable along said rock-shaft. N

19. The combination with a lplaten, of a rock-shaft extendingtherealong and having a longitudinal groove, brackets having spring-pressed keys engaging said groove and rotatable upon said rock-shaft independently thereof, ears on said brackets, a paper-gaging tablet adjustably pivoted on said ears and firmly held thereby in adjusted positions, a finger-piece to rock said shaft together with said tablet away from the platen, means to hold said rock-shaft in normal pt)- sition, and roll-carrying arms also mounted on said rock-shaft to be swung away from and back to the platen together with said gaging tablet; sai d tablet and said roll-carrying arms adjustable along said rock shaft.

20. The combination with a rotatable platen and a platen frame, of a rock shaft journalcd on the ends of said frame, pressure rolls carried by said shaft, and a paper gaging tablet on said shaft.

21. The combination with a rotatable platen and a platen frame, of a shaft located over the platen and supported on the ends of said frame,pressure rolls carried by said shaft and bearing against the platen, and a paper-gaging tablet mounted on said shaft.

22. The combination with arotatable platen and a platen frame, of a rock shaft mounted on the frame above the platen, pressure rolls carried by the rock shaft and bearing against the platen, and a paper gaging tablet supported on said shaft and located above the pressure rolls.

23. The combination with a rotatable platen and a platen frame, of a shaft located over the platen and parallel therewith, and a paper-gaging tablet mounted on said shaft with its paper-supporting face substantially in a plane tangent to the platen.

24. The combination with a rotatable platen and a platen frame, of a shaft located over the platen and parallel therewith, a paper-gaging tablet mounted on said shaft with its paper-supporting face substantially in a plane tangent to the platen, prcssurel rolls carried by said shaft and located behind said plane, and means to rock the shaft and carry said rolls away from the platen. 25. The combination with a revoluble platen having a guiding apron normally in operative position relatively thereto, of an introductory deflector permanently stationed in position in advance of the forward surface of said platen to guide work-sheets to said" apron, and means for moving said apron away from said platen in position to receive work-sheets from said deflector.

26. The combination with a rcvoluble platen having pressure rolls normally in contact therewith, iii an introductory deflector permanently stationed in position in advance of the forward surface of said platen to guide work-sheetsto said pressure rolls, and means for moving said press-ore rolls away from-said platen in position to receive worksheets from said deflector.

27. The combination with a rcvoluble platen having a guiding apron and pressure rolls normally in operative position rela lively tl'iereto, of an introductory deflector permanently stationed in position in advance of the forward surface of said platen to guide work-sheets to said apron and pres sure rolls, and means for moving said apron and pressure rolls together from said platen in position to receive work-sheets from said deflector.

28. The combination with a revoluble platen having a guiding apron normally in operative position relatively thereto, of an introductory deflector permanently stationed in position in advance of the forward surface of said platen to guide work-shoots to said apron, means for moving said apron away from said platen in position to receive work-sheets from said deflector, and a carriage for said platen, said deflector being mounted at one side of the printing point so 20 platen,

50 with the length platen having pressure rolls normally in contact therewith, of an introductory deflector permanently stationed in position in advance of the forward surface of said platen to guide worksheets to said pressure rolls,

means for moving said pressure rolls away from said platen in position to receive worksheets from said deflector, and a carriage for said platen, said deflector being mounted at one side of the printing point so that it may cooperate with said rolls when the carriage is shifted to one extreme of its run.

30. In a front-strike typewriting machine having a framework, the combination of a revoluble platen, a carriage for said paper-guiding means extending around the under side of the platen to the front thereof, and an introductory chute mounted upon the framework of the machine in front of the platen, and displaced wholly to one side of the printing point in position to be of use when the carriage is at only one extreme portion of its travel; said platen having a certain length of printing field which agrees with the length of said chute, to register and cooperate therewith,

and said carriage being movable to carry all of said length of printing field far to one side of the printing center, to bring said length of printing field and chute into proper relationship, so that a sheet introduced by means of the chute may entirely cover said length of printing field.

31. In a front-strike typewriting machine having a framework, the combination of a revoluble platen, a carriage for said platen,

paper-gui ing means extendin around the under side of the platen to the. front thereof,

and an introductory chute mounted upon the framework of the machine in front-of the platen and displaced wholly to one side of the printing point in position to be of use when the carriage is at only one extreme portion of its travel; said platen having a certain lungth of )rinting field which agrees f said chute, to register and cooperatetherewith, and said carriage being movable to carry all of said length of printing field far to one side of the printing center, to bring said length of printing field 5S and chute into proper relationship, so that a sheet introduced by means of the chute may entirely cover said length of printing field, said paper-guidlng means being releasable, and said chute being in position to coco operate with said paper-guiding means only when the latter is released.

82. In a front-strike typewriting machine of, and an introductory chute mounted upon the framework of the machine in front of the platen, said platen having a front feed printing field adapted in the extreme movement of the carriage in one direction to enter the path of said introductory chute and receive the work-sheet therefrom.

33. The combination with a revoluble platen, a carriage therefor, anda releasable paper guide extending around the under side.

of the platen to the front portion thereof, of

a chute mounted upon the machine frame in front of the carriage in position to cooperate with said paper guide only when the latteris released. 34:. The combination with platen, of a platen frame, a tablet having side and top gages to square and limit the work-sheet, movable means supporting said tablet normally in operative position with respect to the platen, and a key connected with said movable means to swing said tablet out of said operative position.

35: The combination with a revoluble platen, of a platen frame, a tablet having side and top. gages to square and limit the work-sheet, movable means supporting said tablet normally in operative position with 36. The combination with a revoluble platen, of a platen frame, a tablet having side and top gages to square and limit the work-sheet, movable means supportin said tablet normally in operative position with respect to the platen, a keyconnected with said movable means to swing said tablet out of said operative position, means to hold said movable means with the tablet: in normal position, and a sheet-guiding pressure roll also mounted on said movable means to be swung with said tablet.

37. The combination With a rotatable platen and a platen frame, of a shaIt located over the platen and parallel therewith, and a paper tablet having side and top gages to square and limit the work-sheets, mounted on said shaft with its work-sheet supporting face substantially ina plane tangential to the platen.

' CORNELIUS B. CORCORAN.

Witnesses 'irrus H. IRONS, J. F. BRorHY.

a revoluble i

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