US1051925A - Type-writing machine. - Google Patents

Description

H. H. STEELE. TYPE WRITIN MAHINE. APPLIGATION FILED Aree, 1910.

3 SHEETS-SHEET l;

enETTmRNEY- Patented Feb. 4, 1913.

H. H. STEELE. TYPE WRITING MACHINE. df1PPLIGATION FILED Amm, 1910.

3 SHEETS-SHEET 2.

WITNEEEl-:Ee 514s '55 NVENTUR.

14E TTDRINEY lPatented Feb. 4, 1913.

H. H. STEELE.

` TYPE` WRITING MACHINE.

APPLICATION FILED Amm, 1910.

3 SHEETS-SHEET 3.

` d'5 ATTURNEY Patented Feb. A4, 1913.

narran stradine earner oratori.

HERBERT H. STEELE, GF MARCELLUS, NEW YORK. ASSIGNOR TO THE MONARCH TYPE WRITER COMPANY. OF SYRACUSE, NEW YORK. .A CORPORATION 0F NEW' YORK.

TYPE-WRITING MACHINE,

Specification of Letters Patent.

Patented Feb. 4,1913.

Application ler April 9. 1910. Serial No. 554,354.

To all Ir/iom may concern Be it known that I, Hnnnn'r H. STEELE, citizen of the United States, and resident of .\larcellus, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Typell'riting Machines. of which the following vand associated paper feed devices are em-l ployedsuch for example as soire sorts of adding machines.

The principal object of my invention is to improve the means for releasing the paper from its feed devices. rlhis I do at least in part by moving the platen away from the feed rolls as distinguished from moving the feed rolls away from the platen. In the present instance and preferably. both devices are moved. that is to say. the feed rolls are moved away from the platen and the platen `is also moved so as to leave a wider gap between the platen and feed rolls than it is convenient to produce b v moving the feed rolls alone. The moving of both thc feed rolls and the platen in oppositc directions from their normal positions. is of especial advantage in instances where a considerable bulk of paper has to be inserted in a machine. y

)ly invention also includes other features contributor)v to the main features above indicated.

My invention consists in means controlled by a finger piece or similar device for moving the platen awa)v from the feed rolls. and also of means for moving both the feed rolls and the platen each away from the other.

My invention also consists in various features of construction and combinations and arrangements of parts all of which will be fully set forth herein and particularly pointed out in the claims.

In the accompanying drawings there is shown enough of the upper part of a typewriting machine to illustrate t-he application of my invention thereto. Of these drawings Figure l is about natural size, Figs. Q and 3 are on an enlarged scale, and the ren'iaining figures are on a still l larger scale. Figs. l, 2 and 3 illustrate one form of' the invention and Figs. i to 7 inclusive illustrate another and preferred form.

v Fig. l is a front elevation partly in sec-l tion. Fig. 2 is a side elevation partly in section. Fig. B is a fore and aft vertical sectional view. Fig. Li is an end elevation partly in section. Fig. 5 is a fragmentary elevation as seen from the left. Fig. 6 is an end elevation with the parts in the released position. Fig. 7 is a front view in vertical section of the left-hand end bracket of the platen frame and with some of the associated parts. Fig. 8 is a View similar to Fig. -i but showing a certain lever of a different form from that shown in said Fig. 4. My invention is applicable or adaptable generally to those typewriting machines and other similar machines in which the printing is done on a roller platen and in which there are employed cooperating paper feed devices that are .normally pressed against the platen. The invention is here shown applied t-o a Monarch typewriter. This machine comprises the usual front strike typewriter hars and the printing keys and other devices for operating said are not shown. The machine also comprises corner posts l which support a. top plate 2 from which rise standards 3 supporting stationary carriage rails at on which the main or hack-bar 5 of the carriage is supported by means of rollers 6. The carriage or platen frame also comprises end brackets T and S which support theV roller plat-en i0. The platen is provided with a shaft l] which is journaled' in two sleeves 1'2 that pass through the end brackets 'a' and S of the platen frame'. As ordinarily constructed heretofore these sleeves. or sleeves corresponding thereto. have been inserted in round holes in the brackets and secured in position by set screws so as to give rigid bearings for the shaft. In the present instancephowever, these sleeves pass through slots i3 in the brackets T and 8, said slots being of the same width in a front and back' direction the sleeves. but being elongated in an up and down directionso as to admit4 of the sleeves being raised and lowered. in order to provide an adjustment te regulate the lower or normal position of the sleeves and of the platen, two screws 14 are threadtype bars, but these parts' fie edthrough the brackets 7 end @,cne of them terminating inthe lower part in each ofV the slots 13 so that the sleeves l2 normally rest on these screws, which screws can he adjusted up and down. Thescreivs 14 vare provided with lock nuts l5. Each ci the sleeves l2 :it its inner end shuts .the huh 1G on the corresponding platen heed, seid iul) heineV rigidly secured to the platen shaft 1l. At its outer end erich of the sleeves l2 shuts the end of the huh 17 ot the linger Wheel i8, these linlis also being rigidly7 mounted on the shalt; The construction is such that the shaft is free 'to turn in the sleeves i2 but 'is incapable of endwise motion with relation to said sleeves. .ln Aorder to prevent enclwise' motion of the sleeves` themselves, each of them is formed with :in annuler enlargement 20 which hears against the outer surface ot the associated bracket 7 or 8. Referring non' more particularly tc l, 2 and 3, the means for moving the platen up and down comprises two crank arms 2l, one of seid crank arms being rigidl;T mount.- ed on each of the sleeves l2 just outside the enlargement 20. As this mechanism is alike "at loot-h ends of the platen., it can he understood by reference to 2, which shows the mechanism at the left-hand end of the platen. lt will he seen that the 'cranksrm 2l is pivoted at 22 to a link 23 which, es shown in Fig.' l, is pivoted on the reduced outer end of s collar 24C that is mounted on e screw 25, `which screw passes lcosely 'through a luger hrzicket 2G projecting npward from the end bracket 7 ci the carriage.

, Seid screw 25 is threaded into the end of a frame rod 27 which is formed' each et its ends, as shown et its right-hnnd end in Fig l.. with e tongue 28 that engages in e cross-groove in the bracket 26 to prevent any turning of the rod 27. This rod 2"?, mount ed substantially as shown, is e. part of the ordinary7 construction of the lllon-.irch msiehine Where it is utilized to support certain paper fingers which are not shown in Figs. l, 2 and 3 but which are shown in Figs. l and 6 of the drawing. ln Fig. l this rod is shown cut out et 30 in order to admit 'olf s sufficient elevation of the platen. ln order to provide an adjustment for the link 25 `the reduced end of the collar 24 may he made eccentric of the screw 25-end this coller may be of prisinstic form externally, es shown atY the right-hand end of Fig. l, so that itcanv he turnedl with e. Wrench. Normally the centers of the screwY 25 and the pivot 22 and the shaft l1 are z ipproxiinetelv on a straight line as shown in 2. When it.

sliding in the slots l nnen-.ees

of Fig. 2 the linie 23 can be djusted toward and from the pieten shaft hy loosening the serenil 25 and turning the sleeve 2l. The parte can be secured in adjusted position hy then holding' the sleeve 24 and tightening' the screw lllhen this screw is tightened. il. hclds the rod firmly in position :ind 'the heed of the screw presses the sleeve Ll` irnilv against the lug` 26., thus holding,- sii-id sleeve in edjustedpcsition. The houd of the screw also cverlsips the. link E23 and thus retains said link in position' en l'he sleeve The link 23 is oit' engnler formation :is shown in Fig. 2, seid link being pivoted :it 3l to a ofitii fg hand lever or link 32 lim/'ing a peper release hendle'or linger piece 39% formed thereon. Below the point 3l seid linl 32 is pivoed zit 3l to :i crank :ii .i which is cogjlshle of turning about :i center 36. The handle i `ily occupies the rear 'position ,n in lieg. Q eiid 'the platen li'ited hy (Je "ing said handle toward the `front until it is arrested liv Vthe lug or liv some of the associated parts es shown in Fig. 3. rlliis breaks the toggle 2l, 23 and raises the platen. llleanvvhile it brings the points'25, 3l and 3d to :i dead center relation.

The machine is equipped with the usual ll/.onoroli rear `feed rolls 3l" and forward t'ced rolls The rolls 137 are mounted on :i shaft or rod 40 carried h v arms 4:1v which are pivcted et 42 in lugs i3 projecting` from the 'eher 5 ot the carriage, and said rolls are pres The forward rolls 38 are carried h v c rod l5 which in turn is carried h v firms i6 which are pivoted :it 4i? in the brackets 43, seid firms elf@ being pressed toward the pieten by springs d8. The machine is also equipped with a. peper apron 50 which is hong on the rod above referred to us con# stituting.; the center about which the firms turn. The nrivnrd part oi' the peper apron is held up by plete springs 5i mounted on the arms A front scale plete is provided, said scale plate being pivoted :it 53 to arms 54 Fig. 2, projecting toward the front o the machine from the haci -her 5 of the carriage. This scale plete is connected with the arms il by ineens of n link 55, best shown in l? 3. rlhese. parts have not heen minutel'y shown. or described for the reason that they ere or may he of sub- Stentially the ordinary Monarch construc tion which is Well. known in the art,

'fhe mechanism already described constitutes e papery feed release mechanism suf* cient :for ordinary purposes, it being only necessery to provide suitable ineens for preventing the feed rolls 37 and 38 and their associated-devices from following the platen in its upward movement. These feed rolls may' also he moved down to increase the space for the insertion cic the pn 3 nd this 'l 'n I I y obviously .ne done h5' independent Ineens 'sed toward the platen h v springs lil-j vates the platen, thus leaving between the 5` parts may be sufficient to hold the platen in` platen and the other feed devices about double the usual space for the insertion of an especially thick pile of papers. To this end the arm 35 is rigidly mounted on the end of the rod 36 which rod is in fact the ordinary paper feed release rod heretofore employed inl the Monarch machine. Each end of this rod projects outside of the end bracket of the carriage where it is formed with a reduced part 56, Fig. 2, of non-circular outline, on which the arm 35 is seated and where said arm is secured in place by a screw 57 threaded into the end of the rod. Each of the arms is formed with a lug 58 which normally contacts with a pin (30 projecting from the carriage bracket to determine the normal position of the parts.

The rod B6 has projecting' therefrom lugs 61,-. Fig. 3, which, when the rod is rocked by the operation of the finger piece 33. press down the posts G2, projecting from the arms 4-1, which carry the feed rolls 3T, so that, when the finger piece is pulled forward, these arms are depressed to move said feed rolls away'from the platen. The forward ends of the arms tl press down the arms 4G,

'thus depressing the feed rolls 38, and the paper apron 50 drops down with said arms 4G. The motion ofthe arms yll. acting through the links 55. also rocks the scale plate 52 about its pivot, thus detlectingthe scale plate from the surface of the platen. In Fig. 3 the normal position of the platen is indicated by the broken line (33 and-the normal position of the feed rolls 23T and 38 are indicated respectively by the lines (et and G5. It will be seen that when 'the handle 3 3 is pulled forward the platen moves upward and the other parts move downward both away from their normal positions. thus leaving an unusually wide space between the platen and the cooperating paper handling devices.

The platen at its left-hand end has a line space wheel 6G with which cooperates the usual line spacing devices. which devices, however. are Inot shown in the present instance. This wheel is also engaged by a detent roller GT. Fig. Q. which is journaled in the end of an arm 68 which is in the nature of a plate spring that presses the roller 6T against the teeth of the wheel GG. This roller stands approximately directly above the platen shaft so that when the platen is moved up and downv by the devices described, the teeth ofthe wheel 66 slide up and down on the roller 6T without turning the platen.

Tn case the platen is a short one and consequently not a heavy one the friction of the [its elevated position shown in Fig. 3, this being especially so as the links 23 vand 32 constitute a toggle which i'n the position of Fig. 3 is straight. rlhe arm is pressed upward by the tension of all of the several springs which control the paper feed rolls. lf, however, the platen be long and heavy, it may be necessary, and in any event it ma v be preferable, to provide additional means for sustaining the platen in its elevated po sition. The means shown for this purpose in Figs. l and 2 consists of a wire spring TO coiled about a post Tl projecting from the end bracket of the carriage. Two of these supporting springs are shown one at each end of the platen. The post 7l is here shown as a screw threaded into the carriage end and projecting a suitable distance therefrom. 'lhe spring 'TO is preferably coiled a number of times around the post Tl and its rear end is bent so as to project through a hole TQ in the arm 35, the other end of the spring projecting forward and lying beneath the sleeve l2. The tension of this spring is exerted upward on both the parts l2 and This spring constitutes in effect an elastic or resilient lever of the first order pivoted at 7l. lu the position shown in Fig. 2 the forward end of this spring lever is operating againstthe toggle 2l, which toggle at, or a trifle past, the dead center; whereas the rear end of it is worked against the toggle 23, 3Q which toggle is broken. Thespring therefore operates to hold the handle in its rear position. When the parts assume the position of Fig. 3 the rear end of the spring is worked against a straight toggle and therefore is firmly held down. and the tension of the spring is sutlicient to support the weight of the platen on the forward arm thereof. This lever is made as a spring for the reason that, although the sleeve l2 moves up when the arm 35 movesl down, the relative motions of these two parts are not uniform. When the handle 33 first begins to move forward the arm 35 moves down comparatively rapidly whereas the sleeve l2 moves upward but little. In the latter part of the forward motion of the handle the toggle 23, 32 is approaching a dead center and the arm 235 is moving down but slowly whereas the toggle 2l., 2-l is broken and the sleeve l2 is moving upwardly comparatively rapidly. The elasticity of the lever 70 compensates for these varying inequalities of motion. ln the form ofthe invention shown in Figs. l. 2 and 3 no paper fingers are employed above the printing line, theirplace being taken by the at 7st to the stationary frame-work of the machine. rlhis paper guide is of a sort comlill-shaped paper guide 73 which is secured Y lill) also are released from their usual coperatio'n with the platen. The paper finger devices comprise small'vfeed rolls 84: which are mounted in arms S5 pivoted at 86v to the free ends of the arms 83. They also comprise spring arms 87 projecting forward and downward from supports S8 made of sheet metal and having ears 90 bent up, one on either side of the arm S3, to which said ears are pivoted at 91. The parts S8 are pressed toward the platen by compression springs 92 each situated between the larm S3' and part T he only modification that I have made in these paper finger devices consists in the addition thereto of a stop screw 93 which is threaded through the arm 83 and at its lower end is adapted to contact with the rear end of the part SS. Then the paper fingers are elevated as shown in Fig. 6 the spring arms ,S7 would turn too far about their pivots 91 and drop down against the platen. These stop screws are put in to prevent this dropping down of said arms.

It will of course be understood that the erasing plate and the paper fingers can be used on the form of invention shown in Figs. l, 2 and 3 by suitably elevating the rod 27 so as to give room for them.

The spring supporting lever can be employed in connection with the form of the invention shown in Figs. 4.-7, and in Fig. S I have shown such a lever used in connection with mechanism identical in other respects with that of said Figs. 4 7. In said Figs. L'lL-7 I have, however, shown a modification of this supporting device which consists of a lever 94 pivoted to one of the brackets 7, 8 on a screw 95, the forward end of the lever lying beneath the sleeve l2 or the enlargement 20 thereof. The rear arm of the lever has a lug 96 bent outwargh therefrom and lying beneath the crank arm 35. Comparatively speaking, the lever 94 is a rigid lever and is incapable of the compensating iiexure referred to in describing the lever TO or at least this lever is incapable of any such extent of flexure as the lever T0. In order to enable me to use this comparatively rigid lever the pivot' thereof is put much nearer to the rear than to the front end of the lever, so that the forward lever arm is considerably longer than the rear lever arm,.and the rear arm of thelever, when the parts are in 'their normal position shown in Fig. fl, is not in contact with the arm 35, there being considerable lost motion between said arm and the lug 9G. In order to keep the lever from dropping down too far in this position it is provided with an arm 97 that contacts with a stop pin 98. In the latter part of the downward motion of the arm 35 said arm depressies the lug 9G and elevates the forward arm of the lever 94,. bringing it up this part of the motion the sleeve l2 is moving upward much more rapidly than the arm` 35 is moving downward and hence the necessity for making the forward arm of the lever longer than the rear arm. -Even with this compensation this lever operates by springing the parts to some extent but it is so designed that this springing of the parts is `not excessive. This lever constitutes a more positive and rigid holding device than the lever 70 for holding the platen in its upper position. In order to provide for an adjustment of this lever it is formed with a cut-out 100 which admits of the le-.v ver being bent with pliers.

It will of course be understood that various changes other than those specifically described, can be made in the details of con-` struction'and arrangement without. departing from my invention.

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

l. In a typewriting machine, t-he combination of a platen, paper feed devices cooperating with said platen, and means for moving said platen away from said paper feed devices and for moving said paper feed. devices away from said platen simultaneously by a single release movement.

2. In a typewriting machine, the combination of a rotary platen, a paper feed device coperating with said platen, and a paper feed release key connected to move both said platen and said paper feed devices tol releasing positions.

v-3. In a typewriting machine, the combination of a rotary platen, a cooperating paper feed roller, and means for simultaneouslyv moving said platen and said roller each with relation to the other, to releasing positions.

4. Ina typewriting machine, the combination of a platen, `paper feed' devices cooperating with said platen, key actuated means normally holding said platen in cooperative relation with said paper feed devices but capable of actuation to move said platen away from'said paper feed devices, and adjustable stops for positively arresting the platen in its motion toward said paper feed devices. y

5. In a typewriting machine, the combination of a platen, paper feed devices cooperating with said platen, papei feed release mechanism including meansl 'for moving said platen away from said paper feed devices for the purpose of inserting or adjusting the paper, and means acting subsion. for motion transverse to its`ax'is, pa'per to the-.position shown in Fig. 6. During ,lfeed devices cooperating with said platen iso teenage wheel connected with said platen, a detcnt engaging said ratchet wheel, and means for moving said platen with relation `to lsaid platen frame substantially 4in the direction of the radius through said detent so that the platen is not rotated when it is moved.

19. In a typewriting machine, the combination of a platen, paper feed devices cowith. freedom to turn therein, means connecting each end of said rod with the corresponding end of said platen for imparting to said platen a motion of translation with relation to said platen frame, said means at leach end of the platen comprising a collar Copies of thispatent may be obta'ined'for capable, of adjustment on said rodby turningf it around the rod, an arm eccentrically mounted on said collar, a. second arm mounted on said shaft without freedom to turn,

and a slide connection between the two arms I whereby the relation of the platen tothe rod can be adjusted.-

21; In atypewriting machine, the combination of' a platen, al paper finger comprisingA an arm having a paper controlling device pivoted thereto and spring-pressedftoward the platen, means for lifting said arm away from the platen, and an adjustable device for limiting the motion ofpsaid paper controlling devioevabout its pivot so as to cause saidl paper controlling deviceto be ,lifted away from thefplaten when the arm Signedat Syracuse, in the county of nondaga and State ofNew York this 7th day of April A. D. 1910.

HERBERT n. STEELE; Y

Witnesses: Bassin G. LrrTnLL, IRENE M. FRITZ.

five cents each, by addressing the Commissioner-*ef Patente, Washington, D. C. i

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