US862536A - Type-writing machine. - Google Patents

Description

' PATENTED AUG. 6, 1907.

4 SHEETSBHEET.1.

A. Tu BROWN. TYPE WRITING MACHINE. APPLIUA'I'IOF FILED NOV. 11,1904.

1 P m H a w I11 2 w w PATENTED AUG. 6, 1907.

A. T. BROWN. TYPE WRITING MACHINE.

APPLICATION FILED HOV. 11.1904.

4 SHEETSSHEET 2.

fzzvezzzar:

310. 86.2536. PATENTED AUG. 6, 1907. A; T. BROWN. TYPE WRITING MACHINE.

APPLIUATIOH FILED n0v.11.19o4.

4 SHEETS-SHEET 3- No 862,536. PATENTED AUG. 6, 1907. A T. BROWN. TYPE WRITING MACHINE.

APPLICATION FILED NOV. 11, 1904.

4 SHEETS-SHEET 4.

Y. is a top plan view. of a typewriting machine embodying I Fig. 3 is a detail view in end elevation as seen from the ules; and Fig. 12 is a left-hand endelevation showing parted to the platen itself.

.vented certain pew and usefdl Improvements in Type-u has for its object -to provide an limproved line-space mor was as it f ms 1 Pa t, oi v t e 3 ALEXANDERT; BRoIWN, o SYRACUSE, NEW YORK.

TYPE-WRITING MACHINE.

naseasse.

. Specification q i'Letters Patent...

Fatented-hug. 6', 1967.

To all-whom it may concern: 4 Be it known that I ALEXAN DER TI Bitown, a citizen ofthe United States, and a residentof Syracuse, in thecounty of Onondaga and Stateof'New York, 'haveim Writing. Machines, of which the following isa specifii n a r My invention relates totypewriting machines and.

mechanism for such machines. P v 7 My invention is'moreespecially "for usein typewriting machines employinga flatplaten, suchas sorts.

- My invention consists in certain-features ofconstrucr tion and combinations and arrangements of parts which will be fully set forth-herein and particularly pointed outin th claims. I In the accompanying drawings, in which like numerals indicate like parts'in the several views, Figure 1 my invention. Fig. 2.is a front elevation of the'sameL' left of Fig. 2. I Fig. 4 is affront elevation, partlyin sec lieu, of a portion of my mechanisms Fig. 5 is an eleva-. tion showing the 'right hand end ofthe machine. Fig. 6 is an isometric detail view of the line space ratchet and associated parts. Fig. 7 is aview of the right-hand feed pinion and the. pawl -and ratchet me'chanismjassociated therewith, looking from the left, parts. of the framework of the machine being shown in section Figs. 8, -9, 10 and 1'1 are detail views of the line-space feed-mechanism looking towards the left, the parts be ing shown indifferent positions in the different figthe line space frame and the printing mechanismtilted up to expose the surface of the platen.

In the particular embodiment of my invention illustrated in the drawings, the printing mechanism is sup. ported by a carriage whichis adapted to move from left to right for letter spacing across a supplemental carriage or line-space frame, which in turn is adapted to be of the features of my invention are also applicable to machines in which the linespace movement is im- In the present instance, the platen frame 1 is supported onposts 2 and the flat top of said platen frame is covered with asheet or sheets 3 of rubber or othersuit able material aspen which the paper 'to be written upon is laid. A rode is mounted on the platen frame and'has pivoted thereto a paper clamp 5 which need not be presentinvention. As shown in I; the supplement'al carriage or linelsp'ace frame has the general formof a rectangle, and. comprises two end pieces 6 and I 10-formed on the upwardly extendingbranch'es 11 and 12'oftheend bars 6 and7 respectively, and secured in said enlargements by pins 13 passing through said en largements and said. rod. A.V- shaped.rail'14l(Fig-. 5)

is carried by or formed upon the-bar 9, andthe carriage 1 5 isprovided with grooved rollers 16 which run on said rail, The-rollers 16areprevented from becoming dis engaged from the rail 14 by lugs 17 which project from the carriage underthe rail. These lugs, as shown in 12, may be plates or metal fastened to theframework. of the carriage by screws 18. .The back end of the carriage is supported by a roller 19 engaging the top. of the rod 8; and alug 20, bestshownin Fig. 12, prpjecting from the framework of the carriage, extends under said roditojprevent said roller 19 from becoming displaced. The carriage is provided with handles 21 and 22 secured to the framework-thereof, whereby said carriage .may'be moved by the hand of the operator. The car rings and the printing mechanism carried thereby need not be more particularly-described as the precise construction thereof is immaterial so-far as the present invention 'is concerned. The platen, carriage and printingmechanism shown in the drawings form the subject-matter of other applications co-pending herewith. Two rails or tracks 23 and 24 are secured to or formed upon the left and right-hand e'dgesof the platen frame respectively and are depressed below the level of the printing surface. Two rollers25 and 26 (Fig. 2]) jonrnaled on the frame piece 6 travel on the rail 23, and

two roller-s27 and 28 journaled on the frame piece 7 travelon the. rail 24. The rail 23 and the r0llers25 land 26 which run thereon are flat but the rail 24 is grooved and the rollers 27 and .28, which engage the same, are formed to fit in said grooved track to guide the line space frame. Rack bars 29 and 30 are secured to the platen frame along the left and right hand edges thereof respectively, by screws 31.. The rack bars-29;

and 30 preferably have their upper surfaces flush with the snrface' of the platen, and their teeth formed on their under sides. Said teeth are engaged bypinions 32 and 33 (Figal and 4) fixed to short, shafts 34' and 35 respectively, jqurnaled in bearings 36-- and 37 formed in the end bars 6 and7 respectively of the line space frame. The rollers. 25 and 27 are journaled on the mit sides of the elongated bearings 36 and 37, respectively. Gears 38 and 39 are fixed to the outer ends of the shafts gear whselsand through said shafts. A. shaft 41 jour- '105} 34; and35 by pins 40 passing through the hubs of saith naled a't one end inia bearinge2 fomedg'in-the end piece 6 and at the other end in a bearing 43 formed in the end piece 7, has rigidly secured at its ends pinions 44 and 45 engaging the gear wheels. 38 and 39 respec tively. The pinions 44 and 45 are rigidly fixed-on the ,shaft'41 by pins 46 passing through the hubs of said lpinions and through said shaft. It will'be perceived that the gears 38 and 39 and the pinions 44 and 45 constitute a train of gearing adapted to cause the feed pinions 32 and 33 to turn in unison and thus to assure a parallel motion to the line spaceframe across the platen.

. It will be observed by reference to Figs. 1 and 4, ,for-

example, that the tracks 23vand-24 project further beyond the edge of the platen than the rack bars 29 and 3 30 and that the pinions 32 and 33 run in a sort of groove 7 from which they cannot escape.- The tracks and rack 3 bars may extend some distance back of the platen as shown and the grooves referred to are terminated at their rear ends byend walls 47 (Figs. 5'and 12). The

forwardtravel of the line space frame may be limited in any suitable manner, as, for example, by a plate 48 (Fig.1) fastened to the front edge of the platen frame by screws 49 and extending into the path of the roller 26. The rollers 26 and 28 are journaled on shouldered screws 50, Fig. 12, threaded into the frame pieces 6and' 7 respectively and secured by lock nuts 51. It Will,

of course, be understood that the rollers 25, 26, 27 and 28 are designed-merely tolessen' the friction and that if preferred, said rollers might be dispensed with and the line space frame be made to slide on the traeks23'and 24.

In order to impart a stepfby-step feed to the line space carriage, I have provided a pawl and ratchet wheel. A pawl 54 (Fig. 6) adapted to engage said ratchet wheel, is pivoted on a shouldered and headed mechanism for operating the train of gearing which includes the feed pinions 32 and 33. To this end a ratchet wheel 52 is fixed to the gear39, by pins 53 (Fig; '4) passing through said gear wheel andsaid ratchet screw 55 threaded. into a pawl carrying arm 56 journaledon the outside of the sleeve 37 inside ofwhieh the shaft 35 is journaled. As shown in Fig; 4, thepawl arm 56 projects from a sleeve 57which is journaledon the sleeve 37 and extends within the ratchet wheel 52, thus. forming a. bearing for said ratchet wheel. A plate 58 (Fig. 6) isjournaled on the sleeve 57 between the ratchet wheel 52 and the arm 56, and said plate 58 is formed with-a shoulder 59 adapted to be engaged by a shoulder 60 formed on one side of the pawl 54 to limit the motion of said pawl The form of the shoulders 59 and 60 is such as to jamb the pawl 54 against the ratchet wheel and thus prevent overthrow of said-ratchet Wheel. A link 61 (Figs. 8 and 11) is pivoted. to the plate 58 at 62 and said link is p'rovided'with a'handle 63- by manipulation of which the position of the plate 58 may be adjusted. Three notches 64, 65 and 66, are

pawl 54 when the pin 67 is engaged by one or another of the netches64, 65'and 66 are-shown respectively in Figs. 8, 9 and 10.- The pawl 54 is pressed into engagement with the ratchet wheel 52 by' a spring 68 fixed to the arm 56 bye screw 69 and engaging a pin. 70 projecting from said pawl 54., The handle foroperating .of the operator.

seaase the pawl-carrying arm 56 is a yoke-bar 71 (Fig. 2) v ig idly secured to arms 72-and 73 by screws 74. 4 The arms 72 and 73 and the bar 71 constitute a yoke-shaped frame pivoted to the line space frame-on headed ser'ews75 and76 threaded into portions of said line space frame.

As shown inthe present case, said screws are threaded into the ends of the bar 8-above described, and the handle bar 71 thus extends entirely across the ina chine so that it may bereadily grasped-byeither hand The arm 73 is extended downward from its pivot 76 and is connected with the arm 56 by a link 77 pivoted to the arm 73 at 78 and tothe arm 56' at79 (Figs; 6 and'7). Motion of the arm 73 islimitedin both directions by shoulders 80 and 81 of said arm (Fig. 9) engaging a lug-82 projecting from the enlaIgement 10 of the upwardly e rtending portion'12 of the end piece 7. The arm 72 has projecting therefrom an arm 83, and a coiled spring 84 is connected at one end to said arm 83 and at theother end to a pin .85 projecting from the end vpiece 6.. 1 The spring'84 holds the yoke-frame in its normal position; A detentroller is journaled in the end of an arm 87 pivoted to the line space frame'. In the present instance, the arm 87 is provided with a-li'ub 88 which is pivoted on the shaft 41'(Fig. 4). An arm'89 rises from said hub 88 and is formed with a handle or thumb-piece 90. A--spri ng 91 (Figs. 8 and 11 is secured to said arm 89 by screws 92; and said spring engages the head of the screw 76."

which is elongated for the" purpose. :The spring 91 normally presses the 'detent roller 86 into engagement with the ratchet wheel 52 with which said detent roller coiiperates'in the usual manner. 1 The detent rollercan be moved out -of engagement with said 7 ratchet wheel by pressing tn the handlej 90. The

hub 88 is also pr'ovided with a baekwardly extending arm 93 extending into the path of a tail 94 'which projects forwardly from the pawl 54.. The construction is such that when the parts arein their normalgposi tion, shown iii'Figs. 5, 6 and'7, the arm 93 raises the pawl 54 slightly away from the'ratehet wheel'i'52 but:

when said-pawl is operated by the handlebar 71, it

:moves out of engagementwith the said arm 93 and into engagement; with the ratchet wheel immediately at the 7 beginning of its operation. When it is desired. to move the line space frame fora considerable distance forward or to move the-frame backward, both the'dete'nt roller 86 and the pawl 54 may beentirely disengaged from the ratchet wheel 52 by pressing the thumb piece back to the position shown in Fig. 11. Furthermore,

the carriage may be grasped by thehand of the operator and forced either backward orT-forward, -in which case the roller 86 will be vibrated back and forth by the teeth of the ratchet wheel 52, and during such vibration the" arm 93, engaging the'projection 94, will-move the pawl 54 in such a manner that as each tooth of the ratchet approaches said pawl, the pawl will be raised in time to let the tooth escape past the pawl. It will thus be seen that the line space frame can bejmoved in either of three different ways; it can be moved down the page step-by-step by operating the handle bar 71, or it can be moved easily by pressing on the thumb piece 90 and thus freeing the ratchet wheel from its pawl and deten't'; or the carriage can be moved by th( exertion of sufficient force without manipulating said thumb piece. The strength of the spring 91"is suflii,

cient to force the roller 86 firmly into the space between two of the teeth of the ratchet wheel and to thus keep the line space frame always in proper register.

It will be observed that in moving the line space carriage step-by-step down the page, the handle bar 71 is pulled in the direction in which it is desired that the carriage shall move, which thus tends to reduce the friction of the parts; and that any overthrow ofthe carriage, when it is drawn by said handle bar 71, is positively prevented by the engagement of the shoulder 60 of the pawl 54 with the shoulder 59 of the plate 58.

The line-space frame is sufficiently guided in its 01'- dinary movement up and down the page by the grooved rail 24. ln case any unusual force be applied to said nected to the platen frame. form a convenient means for manipulating the carfrom or along said. track; in other words, to provide a frame in a right or left hand direction, the pinions 32 and 33 will encounter the web portion 95 of the platen frame, and lugs 96 (Fig. 2), projecting from the framepieces 6 and 7 near their forward ends,'-will encounter the edges of the rack bars 29 and 30, and any displacement of the line space frame would'thus be prevented.-

It will be observed that the forward rollers 26 and 28 do not run under the rack bars The forward part of the 'line space frame is thus left free .to be lifted from its printing position and to be tilted back into the position shown in Fig. 12, in order to expose the paper for the purpose of making erasures or for alnyother purpose. Lugs,97, Figs. 2 and 12, projet inwardly from the upright portions 11 and 12 of the end pieces 6 and i ed, any rotation of said pinions being prevented by the detent 86. It will be seen that the frame can be tilted back in this manner at any point in its travel up and down the platen, and that when the frame is returned to the horizontal, it will resume the exact position over the platen that it had before it was tilted. The arrangement is such that at every point inits travel the line space frame is in effect pivotally con- The handles 21' and 22 riage for this purpose.

It will be observed that the tracks 23 and 24 and the rack bars extend some distance back of the platen, so

that when it is .desired to adjust the paper on the platen, the line space frame may be rolled toward the back of the machine and be tilted back into the position shown in Fig. 12. The paper clamp 5 may then be raised from the platen and the paper changed.

I i It is new, sofar as I am aware, to provide a typewriter frame .with means wherebyit may travel along a'track of any description and may also be tilted about the track itself without danger of becoming displaced connection between a frame and a rail or a track, which connection affords a motionof translation along said track andalsoconstitutes in effect atrue pivotal conface thereof.

nection w1th.saidtrack affording a pivotal motion about said track in the same general direction as the motion of translation. ,It is also new, so far as I am aware, to have the feed pinions engage the rack bars on the underside thereof. This arrangement has many advantages which will be readily apparent to those .skilled in the art. his much easier to keep the racks clean when arranged in this manner and said racks are also out of the way so that there is no danger of the operators hand or clothing coming into contact with them.

' It will be observed that in the ordinary use of the present machine the operator has no occasion to separate the parts thereof. In order to reach the paper to make corrections it is only necessary to grasp one of the handles 21 or 22 and tilt the frame back until it rests-0n the lugs 97. In order to -change the paper the frame is moved to the back of the platen, tilted back out of the Way and the operator has both hands free to arrange the paper and the paper clamp on the platen.

In the particular form of platen here illustrated, it is intendedthat the 'book shallrest beneath the platen and that two leaves shall be drawn up through a slot under the paper clamp 5 and that one leaf shall extend to the left and the. other to the right of said clamp.-

This being the case, in writing on either page the carriage 15 would be always at either the left-hand or the right-hand side of said paper. clamp. As the books on which these machines are used are frequently large,'

such platens are in practice of considerable width from right to left and in this connection the long line-space handle bar 71, extending entirely across the machine, is especially convenient; but I do not intend my claims on thisfeature to belimited to such a machine. So far as I am aware, it is new in any style of typewriting machine-to provide a handle bar of such character extending across the machine in this manner. There are also features of construction in the pawl and ratchet mechanism, the novelty of which isnot confined to machines of this type but which I believe to be new in typewriting machines generally.

Various changes in the details of construction and arrangement may be made without departing from the gist of my several improvements.

The mechanism for affording motion of the carriage 15 transversely of .the machine, some of which is shown in the present case, is more fully disclosed and is claimed in my pending application Serial No. 232,301 filed of even date herewith. The platenframe 1 and "the parts immediately associated therewith, as well as the paper clamp 5, are more fully set forth and are claimed in my pending application Serial No. 232,302,- filed of even date herewith. I The ribbon mechanism, parts of which are shown in the drawings, is more fully disclosed and is claimed in my pending application Serial No. 239,642, filed January 4th, 1905.

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

1. The'comblnation of a fiat platen, a line-space frame adapted to travel across said platemand rails for said linespace frame fixedly connected to saldplaten below the sur- 2. The combination of a flat platen having rails extending along opposite edges thereof and below the surface thereof, and a carriage having rollers engaging said rails.

on theirnnder sides below the surface ofthe'platen acar-.

engaging beneath said racks. I ,8. The combination; with a frame and a carriage, of

iine-space frame and fixedly connected to said platen,

one or 'more racks. fixedly connected to said platen, and

one or'more pinions carried bysaid line-space frame and engaging said racks.

4. The combination of a platen, rails fixedly connected to said platen, a line-space frame supported by and'adapted to travel on said rails across said platen, racks. fixedly-connected to said platen, and pinions carried by said line spaceframeand engaging said racks and held by said rails in engagement with said racks.

1 5. The combination of a carriage; pinions carried by said carriage; racks'engaged by said pinions; means for causing said pinions to turn together to afford a motion of translation of said carriage along said racks; and rails supporting said carriage and arranged to prevent said pinions from becoming disengaged from said racks. 6. The combination with a fiat platen, of rack bars extendingalong opposite edges thereof and having rack teeth riage having pinions engaging saidirack teeth; and means for causing said pinions to turntogethenh 7. The combination ofa flat platen; racks projecting beyond the op'pos'ite edges of. said platen; rails beneath saidracks but out of the vertical planes thereof; and a -carriage adapted to travelon saidrails and havingpinions 'riage across said-frame, said means also constituting a pivotal connection between said carriage and frame whereby said carriage may be tilted about a pivotal'axis'at right angles to theiineof its motion of translation across said frame, at any point in its travel across said frame.

. 9. The combination with -a flat piaten,' racks extending along oppositeedges of said platen, and rails below said v racks but out of the' vertical planes thereof, of a carriage engaging said rails and having pinions engaging said tacks beneath. the same, the construction being such that said carriage is supportedby said railsand may l e-tilted about said pinions.

10. The combination of-two parallel. tracks; and a frame I having-a'pivotai connection with said'tracks, said p'ivotai connection also affording a motionof translation ofisaid frame alon'gsaid tracks and cooperating directly with said frame and with said tracks.

11. The combination of'.-a'platen; a line spa'ce frame:

adapted to travel across sald'platen tracks for said lin'e space framefixedly connected to said platen and a connection coliperati'ngdirectiy with said iine space frame.

and said tracks and adapted to afford a motion of translation of said iinespace frame along said tracks, and also a P v tal motion in the same general direction as said motion' f transiationi 12. In I typewriting. machine, the combination of a rela tively stationary frame, a carriage,'-means for moving said carriage across said .!rame, said means including pinlons H engaging racks. carried: by 'said frame, .said racksyandpinlons being; adapted to serveas a pivotal connectiodbe tween said carriage and frame. 13. 'In a typewriting machine, the combina'tionof a rela 'tiv'ely statibnaryframehaving racks; a carriage having pinlons engaging said racks to cause all parts of said'can riage .to move equal amounts-across said frame; and means for holding said-pinions in mesh with said rac ks whereby said harrlage may be tilted about said pinions. V ,.14.' in a typewrlting machine, -the-combination of arelatively'stationary frame a carriage adapted to move across 7 0 said carriage, said pinion engaging the under side of a rack,

said frame; a'pinion" and a roller co axiaily mounted-on bar carried by said frame and said roller engaging .the upper side of a r'ail also carried by said frame.

15. Ina typewritlng' machine, the combination of a relatively stationary frame ;a rack bar carried by said-frame;

' a rail beneath said rack liar but projecting beyond the.

same; a carriage having-a pinion between said tacit bar and rail and, engaging the former and carriage supporting means engaging said rail.

16. ,In a typewritlnz machine, the combination of a flat same platen; rack bars projecting beyond two of .the edges of said platen and directed away from the'printing face thereof, rails beneath said rack bars; a carriage having of line an'ism,. said handle having the form of a'yoke-shaped frame extending across the machine-and moving when operated in the direction ofmotion of said linespace frame.

18. in a typewriting machine, the combination-of a line space frame-a pivotedyoke frame extending ac'rossthe machine "and a line space mechanism operatively connected to said yoke frame at one end thereof, said yoke frame moving when operated in the direction of motion 01 said line space frame. 1 I v a 19. The combination of a, platen j a line-space frame;

pa'wl and ratchet .mechaiiisih' for'lmovingf sa'idiine-s'p'ace .--frame'.across saidplatenf, and. a -'yoke-shaped frame for operating said pawl and: ratchetnrnechanisnn said yokeshaped frame moving when operated in the direction of" rnotionof ,said' line space frame;

20. In a typewriting machine, ,the combination with line-space mechanism,of a handle bar for'said mechanism,

extending "across the machine and movable fore and aft of the machine.

21. in a typewriting machine, the combination of a platen; a line-space frame; mechanism for moving: said line-space frame acrosssaid. platen; "and-a linespace handle bar on. said frame extending across the'm'achine and moving when operated in the-direction of mo'tion'of said line space'frame; I

' 22. The combination of a platen, a line-space carriage, a pivoted arm, apawl mounted on said pivoted arm ande'ngaging a ratchet to actuateisai dcarriage; an operating lever; and a link pivoted tosaidoperating lever and to said pawl carrying arm.

23. 'The combination of a line-space ratchet.wheel; an

{operating pawl for said rat chetiwh eel carried by'a pivoted arm; an adjustable memberfor arresting said pawl; said pawl arm and said adjustable member being pivoted coaxially wlth'said ratchetwheel; and a handle pivoted to' said adjustable, member.

, 24.- 'The combination with a line-space, ratchet wheel of an operatingpawl for said wheel an arm pivoted co .axially with sa'id ratchet wlieel 'and'carrying' said pawl;

an arresting member for said pawl pivoted on the'same axis as said pawl arm and ratchet wheel a handle pivoted to said arresting member and means 'coiiperating with said handle for retaining said arresting-member in adjusted position.

-25. The combination of a fiat platen having a rack; a

line-space frame having a pinion engaging said rack; a v

pawl'for said ratchet wheel; alspring pressed detent carratchet, wheel for controlling said pinion; an: operating rled' by saidframe' -and engaging'sa'id ratche't;' and an.

ice

arm connected to said detent and adapted to move said pawl out of engagement with said ratchet.

26. The combination of a flat platenhaving a rack .fa line -space frame having a pinion engaging said-rack; a ratchet wheel for controiling said pinion; a pawl for operating said ratchetwheel an arrestingmeinberfor, said pawl pivoted co-axially with said ratchet wheel; a

iink'pivoted to said'arresting member .for'adjnstlng the and meansfor holding said link in the different positions to which it may be adjusted;

27. The combination of a line space ratchet wheel; an.

operating paw'l for said ratchet wheel carried by a pawl arm pivoted co-axially with said ratchet wheel; mar-resting member for said pawl also pivoted co-aLxialiy-with said ratchet wheel and adapted to 1am said pawl-against said ratchetwheel to prevent overthrow of. the"latter; a;

notched link connected with said arresting: member; l a fixed; abutment cooperating with the notches 'offlsaid'.

link'to-hoid'said arresting member in different adjusted positions; r

' 2 8. Thecombination of a flat platen, a carriage adapted to travel across said platen, means for controlling the motion of said carriage across said platen, said 'neans" pinions;. and a' shaft having pinions engaging said gears wheifeby said first-mentioned pinions are constrained to -31. The combination 'o'if'a flat-platen;

being adapted to'afi'ord a continuous motion. of said car.- riage across saidplaten for any distance; a-handle for I imparting a, step-by-step motion of saidcarriagejacross said'carriage is moved step-hy-stept Y 29. The combination-of racks; a linespa'ce frame having pinions engaging said racks; gears connected to said said platen, and m eans for preventing overthrow when turn in unison. p

30. The comhinationof a flat platen 'rack bars connected to opposite edges of said-platen and having rack teeth on thennder side thereof: a'line space frame having pinions engaging saidrack bars beneath the same-;'

g'ears'conn'ected to said pinions; and a shaft extending across said platen and'having pinions engaging said gears. rack bars con-- nect'e'd to the opposite;edge s of said platen and having ,rackteeth on the nnder side's-thereof; a line space frame 'having pinio'ns engaging said rack-teeth; gears connected nected to the opposite edges of said platen and having, ,rack teeth on the un'der'sides thereof; a line space frame having pinions engaging said rack teeth; gears connected to said pinions; a shaft extending across said piaten and having pinions engaging said gears; a ratchet wheel connected to one ofsaid pinions, a pawl cooperating with said ratchet wheel;- anda handle for controlling said pawl, said handle having the form of a yoke bar extending across the machine. v

Signed at the borough of Manhattan,' city of New York, in the county of New York, and State of NewYork, this 9th dayof'November A. D. 1904.

ALEXANDER I T. BROWN; Witnesses:

E. M. WELLS, I

M. F. HANMOEBER.

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