US1053926A - Type-writing machine. - Google Patents

Description

w. J. NEIDIG. TYPE WRITING MACHINE. APPLICATION FILEDIAPBHLDIQIZ.

Patented Feb. 18, 1913.

WILLIAM J. WISCONSIN, ASSI GNOR BY ASSIGNMENTS,

, TRUSTEE, A CORPORATION OF ILLINOIS.

TO CHICAGO TITLE m'us'i rrmz wiirrmo hang ng.

- ...sc e m:nu era Patented Feb.18,1913. 57,386; iniiiaea na this applidation an April 4,

s 1912. srlaii-irze-aaaagssb' generic invention which is des'bribed and claimed inf my, ,o-.-'pe ndirig pplication 1 5.'A ril 2Q,19Qs,?seria1--N 428,212; he'ieaning objects ofjmy invention, as coin'moiie tq'f'the generic invention of the' said applications and to the pres'entbranehor i-divi'sion thereoflare, first, to indicateduring 9' Zseveral of the sheet, the distance s -;'arri'val of the bottom edgeof thesheet at a I predetermined distance'from the 'printing pointafia 4 .1 i j l In the wpresentdivisionvof the invention I employ an operative member, indicating means controlled 'by the said member, slipdrive )connections for imparting to said op 'erativemezrber moyement correlated or eoordinated with that of the sheet-advancing means, and sheet-controlled means for de- 40 taining-said member in-the presence of the sheet and releasing-it on the passage of the bottom of the sheet to'move simultaneously with, the isheet-advancing means and therehy' bringfabout' the actuation of the indi- :fcating means, g Y

Various forms and kinds of indicating :means suitable to be employed for indicating the arrivalof the bottom of a sheet at v a given distance fromthe printing point are 59 known in the art inyarious connections, and are suitable to be employed in carrying the broader phases of the invention into effect. Preferably. however, I employ a scale or fixed and the iother movable in =uni- QI Withthe sheetrad'vi'ancing 'means,-.so that thexelative shift-in position as theoperative s ne her moves indicates the approach of .the .bqttoni oi-thesheet closerzand closer to the predetermined 1point,'";which usually' is theprintin'gpointe aPreferably, also, I e mploy an OperativeLmer'nber, which-is rotary, so

that itiinaytu rnor rotate coordinately with theadvance of the sheet after the operative m'emher has been called into, movement,' and "for convenience-i1 apply the scaleor series of indices ito the saidrot a'ry operative member "and mount the pointer or index upon some partof thie ea'rriage. -{The sheet advancing means ordinarily-employed in typewriting maohinesiis a platen, and according'ly I have hereinj combined-the rotaryoperative mew her with'j the platen through the slip-drive connections,--although the invention is not limited in all cases to the eomr;

bination of the'said member 'withthe .ordi

wholly ,by; friction. 'lhe shet-contrdlledi means for detaining the rotary? operative nary platen. j The slip-drive connections I may be of any approved type, but-prefer member in the presenceofthe sheet-and re, I

leasing it on the passage of the;bottom--of the sheet includes a feeler adapted-to, feel, for and engage with the sheet, and-means in connection therewith for holding'or detaining the rotary operative me'mberfrom move.

ment to actuate the indicating devices so 4 long as the sheet controls the position of the feeler, the said parts operating to release the said member to rotate in unison with the sheebadvancing means when the passage of the bottom of the sheet releases the feeler.

The present division of the invention consists in i provemenls in the construction of the operative member amlin the slip-drive connections of the said member, as well as in the means and manner of eon'ihining the said member and sli rdrivc connect-kins with each other.

An embodiment of the invention is illuswhich Figure l is an end iew of a otionseries of indices and a pointer or index, one

A. .A., Fig. 1, of a portion of the same, but

trated in the accompanying drawings. in

with the spring 7 somewhat shifted so asto ap ieafrmore clearly in the dimdfif'gfi; Fig; 3 is-a top or plan View of the, parts shown] "'f 'il l fig l and Figrt is a sectional view' of a Haring reference to the, drawingskfthe usual. platen-arbor 13, hearing thereon the usual platen 10 for advancing the sheet, is

' ,journaled in the ends of the usual carriagerotated. in usual manner by line-spacing jrame 12, the -said carriage-frame. being" Tremble laterally iii the usual manner upon the main frame, and the said platen being mechanism not. shown hereim as will be under'st-otttl by those slnlled inthe art.

-- "l.-'-lie.j eentriil lneinb'er of. the present enifer to employ is constructed in the form of an annular shell 6 havin 'a' peripheral face 7 provid'edWit-h a s'erie's o indices which coi- -o'perat'e \vithctli'e fixed pointer or index 34.-

-- explained,

attached'to'thecarriageframe 12, as will be In typewriting; "machines as ordinarily V constructed thedmesspace mechanism for 1 -atlvanc ng'tlie sheet o'pera tes'to start' the platen ,into action with considerable suddenness;the-platen thereupon moving for a ishort" distancewijth' con'siderable velocity,

Eand 'tliefe'nidofthe movement coiningto rablefabruptness. In the.

siicl in.:ahruptlyimoving platen, the fllCilOH:

nnect ed frictionally with he's uifie ient to overcome, in starting it: ertia of: the pa rt, and sufficient to over i'nth e amefangulnn relation with the platen,

'. butwill sliiftfinone direction when starte'd amis the other when 'stoppedr In prac- ":rti'ceflit'is'foundfth'at' such a. part-tends to them nnentuni of thef'part shifts it for-n wardflyinore than' the inertia of it shifts- ;dri'ftin" line-space direction; that is to say,

it hackwardly the stopping action being more" sudden tlianthe starting. The greater will 'be its tendency to shift, It is possible the 'i'nom'entum ofsuch. a part, the greater 2 to overcome the tendency by increasing the frictionfibut in a paper-controlled ineeha bebeyond the ability of a fra ile'substancef liltethin paper to perform. have therefore found ,it desirable to, reduce tothe lowest convenient point the inertia of the.-

. carrier I empluy'hy using a light annular shell for a carrier, as illustrated in Fig. 2.

.1t is possible to reduce still .further the inertia 01 the carrier by constructing it of :rnent through a frictional a'ctuatingmeans,

light frictional engagement of'gi'eat e e0- '11 isfnext to the platense'ndj Betweenthe ,.ri1ns of the two disks* 1j1-and .111 is entered frictional driving engagement between the of dished form, with a central in the momentum of Ethel otherwise 1 thepart will -not remaina light material lilce aluminum, but I have found the constructionindicatedto be suflic1ent' l'yhght not to requirethe use of such a materia. t H \Vhile I" prefer to give the carrier 6'moveit not essential that the slip-drive actuation be wholly frictionala Means havin a t veness-for the purpose isishown in my drawings. o

Referring first to Figs. 1, '2 and 3, mounted upon the platen-'arbor;1'3 adjacent to one end of the-platen 10 are the frictionaldriving disks ll andll. The disk an inwardly-projectingportion or-lip 84 of the index carrier" 6. The (inter lateral face of the said inwardly-projecting"lip constitutes a shoulder, into contact withwhich the ,rim-portiofn .Of the diskJ IF- -is pressed by means of a spring 7 acting axially with relaticn to the arbor 13.- .There is, .therefore, disk. 11% and t shoulder oithe carrier. The pressure of; the 5 ring 7 operates tohold the inner surface of hip- .84 in closefrictional contactwith.t he' rirngportiong-of ,disk 11". Thus the -lip*;8 l is embriiced betwe'en two frictional contact-surfaces; Thesspriiigfl is 7 eye that; en-- circles the platen-arbor, mm branches which:- bear theirextfemities against the said outerlateralslurface 0f the rim portionof diski; 11-,. ;Thespring f7 is confined between the disk 11 and air-facedisk li -,5: the latter being sleeiiedQu pon the platenarbor, and byjr'nea ns of'a clamping 1 platen-arbor." The disl i;; 11 fitsgwithin the opening at the outer side of theindex-czim rier, and closessuclr-opening -Tlie spring 7 therefore acts axially with respectjto the platen-arbor 13. Annulus 6 is supported r on the peripheries of thefldisks 11 and 11,

and is held from lateralv displacement "by the lip 84 entering between disks 11 and 1-1. The tension of" spring 7 is regulated in order to vary the degree of friction'alidrivingaction tending to rotateithe same-,simula taneously with the platenyby means of jad justing screws 9,- 9, the stems of which pass I through holes in disks 11 and 11,, and'scre'w linto threaded holes that are. tapped in the disk Il while the flanged headsithereof engage with the disk 11'. To. regulate the;

tension ofthe spring 7. the-screws; 9,19, are

turned so as to adjust, the disks: 112i and-11 closer; together I or allow them to separate 5 mor'ef-or less. under the tendency o'ffthe spring 7 to eitpand The annulus 6,;and:the disks 11., 11 ,11 with its h ub,'aand spring 7,

are heldtogether by means ofscrews 9, 9,25

an assembled unit; and' areapplicabletoithe i platen-arbor 13 and removable therefrom as an assembled unit.

The invention is not cise character ofvadjusting devices, and in some cases, if desired, adjusting means may be omitted.

The slip-driving means just described serve to cause the index-carrier to turn simultaneously with the platen, except when the index-carrier is held from rotation, in which case the platen turns without turning the index-carrier.

Referring, now, to the feeler devices,the frame extension on the carriage frame 12 bears the laterally extending pin or axle 20 having a shoulder. Journaled on the said pin against the said shoulder is the short sleeve 21 hearing the fixedly attached stoplcver 15. Against the said sleeve and journaled upon the same pin therewith is the sleeve 21, hearing the fixedly attached eccentrically-disposed weight 66, and the fixedly attached paper-feeler butt 28 The said butt bearsthe pin 23, upon which is pivoted the paper-feeler 28. A stop-pin24 on the said butt cooperates with a lug 65 on the said Ieeler to give a one-way knuckle fiction to the parts. Acne-way stop-pin 62 on the before-named weight- 66 likewise cooperates with the lug 63 on the stop-lever 15 to limit the movement of the stop-lever in one direction with respect to the weight. The paper-table 8, carried in usual manner upon the carriage frame 12, is supplied with a slot or opening 4, into which the before named paper-feeler 28 has its path. I place the centers 20 and 13 as close together as is convenient, and employ a relatively short stop-lever 15 and a relatively long paperfeeler, in order that through the advantage in leverage the pressure of the feeler upon th sheet may be rendered lighter than it otl. *rtise would be. The stop-lever I5 is arranged to engage with a projection 14 extending laterally from the operative meniinsertion, the side of the her or index-cairier 6.

The action of the mechanism is as fol lows: The paper-feeler under the action of eccentric weight 66 as transmitted by sleeve 21, normally occupies a position retracted from the papentahle and against the platen, as shown in Fig. 1, to permit of free sheetplaten 10 serving as a stop to limit the 'weightactuaied movement of the paper-teeler. The stop-lever 15 is maintained aiormally in the path of the projection 14 under the action of the same weight as-transinitted by stop 62 to projection 63. The papenshcet 45 entered into the machine along the paper-table 9. and advanced in the usual way through the in' strumentalitv oft'he platen. As the platen is rotated, the annulus or carrier 6 also rotates under the-frictional actuation of the limited to the par- 'ticulari form of theis'pring, nor to the pro same by 11, and the projection 14 is eventually brought around thereby until it encounters the stop-lever 15 in its path; Further rota tion of the platen presses the projection 14 against the said stop-lever,

per-path. If the sheet were not present, the paper-feeler would continue to be moved by the stopdevr until it had entered the slot- 4 sufliciently far to permit the projection 14 to pass the said stop-lever, whereupon both paper-feeler and stop-lever would be returned to normal posit-ion by the weight 66. In that case the carrier 6 would continue revolving with theplaten without detention. When the sheet .is present, the paper-feeler cannot enter the slot 4, but'is detained by the sheet, and in turn maintains the stoplever 15 in the path ofthe projection 14 so as to act as a stop thereon, and through the projection as a stop upon the carrier or in dicator 6. The parts are maintained in this relation and position during the 'further progress of the sheet until the end of the sheet passes out from under the feeler 28. The instant the slot 4 is cleared by thesheet, .the said feeler', no longer restrained from entering the slot, passes into the slot, and the revo-luble part, 6, no longer detained by the stop 15, takes up its movement with the platen, moving thereafter coiirdinately with the platen advanced sheet. As the said part 6 always begins its movement from the same angular position, it will always stop in a given angular position after a given angular movement from starting position. and as moreover it always begins its said movement when the end of the sheet is a constant distance from the printing point. since the point where the feeler-end meets the sheet is necessarily fixedly distant from the printing point, and as the sheet is advanced coordinately with the said part during the said movement of the member, the'end of the sheet will always be a constant distance from the printing point at the end of the said given angular movement of the carrier. I place the stationary index 34, shown as carried on the carriage frame 12, adjacent to the said carrier,- and. I supply the indicating portion of the said car 'rier which is presented opposite the said stationary index in the constant starting position of the carrier with an index 89. Fig. 1 that will indicate that position of'the carrier: I further supply the said carrier opposite the stationary index after an advance of the. sheet and carrier coordinately l with eat-h other, with an index that will indicaic the new position of the sheet: and so i on around the carrier for every successive 3 position of the sheet, at will. That is to say. if after the first movement of the rethe frictional driving disks l1 and.

and through it v presses the paper-feeler 28 toward the paon that portion thereof which is presented leased index-carrier the end of the sheet 1s distant seventeen single lines from the printing point, I supply the indicating portion of the carrier then in indicating position with the index 17, and in order to indicate when the end of the sheet is distant sixteen single lines, I supply the carrier with the index 16, and so on down to the end of the sheet. In my drawings I show the indication by single line progresses, the indices here bein numerals in descending order. Other indication than by single line indication may be employed, and other units than the line unit. It is of course immaterial whether the stationary and the movable indices come to relative rest exactly opposite one another, or whether the distance be given to the end of the sheet or to a point a fixed distance therefrom, or whether the indices in themselves signify distance-units at all. I refer to use simple numerals indicatin the decreasin distances to the end of the s eet and invo ving no mental calculation nor memorizing on the part of the operator.

My invention serves to give the operator a signal that the end of the sheet is near. use for a stationary index a shield-pointer that conceals one portion of the carrier from the operator, and the carrier itself is divided into two differentlv appearing segments, one of which is visible to the operator during the detained position of the carrier, and the other of which is not visible but lies behind the shield-pointer in that position of the carrier. In my drawings I show the first named of these segments as containing no indices except the circular index 89, and by preference I color this segment black, and the second of these segments which I cause to bear indices I prefer to supply with aground of white, although these are not the only distinguishing means possible. \Vhen the sheet-end releases the carrier, and the white indexbearing segment comes into view, the change from black to White"attracts the operators attention and he knows that the end of the sheet is within a given distance away from his printing point. It of course not essential that the white index-bearing segment should come into view at the very first feedmovement of the platen after the release of the carrier to move therewith-the black segment may be extended under the shieldpointer to any required extent so that several feed-movements will intervene before the white segment with its indices comes into view, so that this signal may be given when thesheet-end attains any required distance from the printing point. It is not essential that the white segment be supplied with indices, nor that the index-bearing portion of the carrier be distinguished from the other portion.

0 oionmmm v Fig. 4 represents a. modification of my invention, described as follows: Fixedly attached upon the platen arbor 13 is the frictional driver 11, supplied with a terrace or shoulder, upon which is placed the friction Washer 11 and against the said friction washer is placed the instanding portion or web 84' of the index-carrier 6'. A dished sheet spring 7 confined between said portion or web and the sleeve 106, bears against one face of the said instanding portion or web 84, the said spring acting with axially directed pressure so that the carrier is pressed axially against the said friction washer 11 and held in frictional connection therewith, and therefore in frictional connection with the platen so as to turn with the platen. A face-disk 11" journaled loosely on the sleeve 106 so as to rotate freely thereon in effect forms part of the 'said carrier through being fixedly connected with the rim-portion of the carrier. As compared with the mechanism previously described, one difference between the two is that the spring 7, Figs. 1 and 2, rotates with the platen; and another difierence is that the spring 7, (Fig. 4), bears immediately upon the instanding portion 84 of i the carrier, whereas the spring 7, (Fig. 2) produces its effect upon the instanding portion 84 through an intermediate part; and

still another is that the carrier 6 in Fig. '2 is an annulus, or annular in form, whereas the carrier 6 of Fig. 4 is more nearly a drum in form. These differences are mere differences in form. The carrier (3, in practice is supplied with indices and visual signaling means such as have been described in connection with the first three figures. The sheet controlled parts are also the same, except that the stop-lever 15' has a bevel 30 upon it and the projection 14 a cooperating bevel 31 upon it, the engagement of the projection and the stop-lever resulting not only in a stopping action upon the projection but tending at the same time through the bevels to press the carrier 6' axially away from the frictional driver 11 and to open or ease the friction between the said parts. In other respects the action of the mechanism is the same as that of the mechanism first described.

Provision is made for backward movement of the sheet at any time, in two ways. If the platen is moved backwardly while the feeler is in contact with the sheet, the result in backward movement of the carrier 6 wil cause the projection 14 to move backwardly, relieving the stop 15 of pressure, whereupon the weight 66 will be permitted to retract the feeler from contact with the sheet. And if the sheet be advanced to'a point ust after it has released the feeler, and g consider my and convenient for use in practical embodiments of the main principles of theinvention. I regard the indicating segments shown and described as constituting an adequate signaling means. In addition they inform the operator of the exact position of the bottom of the sheet. v M

It is to be noted that'the index-bearing part in some embodiments of certain of the features of the invention may vary more or less in character and construction in practice, and the means and manner of actuating the same may vary without departure from the principles of the invention. It is to be noted, also, that although I show the paper feeler 28 as intersecting'the path of the pa per-sheet at the paper-table 8, I do not limit myself to this construction.

The devices shown in the drawingsand described herein are part of a series of closely related inventions or improvements which are presented in a number of copending applications for Letters Patent filed by me. The said devices have a number of general objects in common with those forming the subject-matter of different applications in the said series, and to a certain extent embody and utilize various principles and features which are common to devices shown and described in one or another of the said applications. Some of the said common principles and features are claimed broadly in my divisional application aforesaid, and in my application filed April 20, 1908, aforesaid, while others are made more particularly the subject of claim in my applications filed Dec. 15, 1909, Serial No. 533,309, andMar. 30, 1912, Serial No. 687 ,463. The branch of the general invention that is covered hereby is distin guished by the characteristic features which are specified in the following claims.

Having thus clearly explained the nature and objects of my invention and the manner of applying the same, I claim as new and desire to secure by Letters Patent- 1. In a typewriting machine, in combination, a platen,a series of indices, frictional means having a. constant spring-pressed engagement acting to give the said indices movement correlated with that of the platen, and sheetecontrolled means for detaining and releasing the said indices.

2. In a typewriting machine, in combination, a platen, an operative member, frictional means having a constant spring pressed engagement acting to give the said member movementcorrelated with that of the platen, a sheet-controlled stop for detaining and releasing the said member, and

indicating means called into operation throu h said member.

3. n a typewriting machine, in combination, a platen, an indicator, frictional means having a constant spring-pressed engagement acting to give the said indicator movement correlated with that ofthe platen, and a paper-feeler controlling the movement of the said indicator so that it will be suitably held in constant starting position and suitably released to inoveiwitli the sheet when the sheet-end attains I a constant distance from the printing point.

4, In a typewriting machine, in combina tion, a platen, an indexrcarrier and a connected projection, frictional means having a constant spring-pressed engagement acting to give the said carrier movement correlate with that of the platen, and sheet-controlled means for detainingjand releasing the said icarrier through the said projection.

5. In a typewriting machine, in' combination, a platen, an index, frictional means having a constant spring-pressed engage,

ment acting to give the said index movement correlated with that of the platen, and

a sheet-controlled stop for detaining and releasing the said index so that it takes up movement with the sheet at a constant point in the progress of the end of the sheet.

6. In a typewriting machine, in combination, a platen, an operative member, indicating means called into operation through said member, frictional means including an axially acting dished pressure .spring for giving the said member movement with the platen, and sheet-controlled means for detaining and releasing the said member.

7. In a typewriting machine, in combination, a platen, an operativemember, indicating means called into operation through saidmember, frictional actuating means for the said member, including a symmetrically disposed axially ressing spring, and sheetcontrolled means or detaining and releasing the said memberJ a 8. Ina typewriting machine, in combination, a platen, an operative member, indicating means called into operation throu h ing means called into operation through said member, frictional connecting'means between the said member and the platen, including a driving member and a spring disposed about the axis thereof and acting axially, and a sheet-controlled stop for controlling the movement of the said operative member.

10. In a typewriting machine, in combination, a laten, an annulus having an annular shoul er in connection therewith,a'n axially pressing spring cooperating with the said shoulder to give the said annulus frictional en agement movin' it with the platen, an sheet-controlle means for detainin and releasing the said annulus.

11. n a typewriting machine, in combination, aplaten, an annulus and-a connected projection, frictional 'means including a spring ior giving the said annulus movement wit the laten, and sheet-controlled means cooperating with 'the said pro'eotion to detain and releaseithe said annulus.

12.. In a typewriting machine, in combination, a platen, an annulus and a connect ed projection, frictional means including an axially-pressing sprii ig for 'ving the said annulus movement. with t e platen, and a paper-feeler connected to control the movement of the said annulus through the said projection.

13. In a typewriting machine, in combination, a platen, an annulus frictionally connected through spring-pressure to move normally with the platen, and sheet controlled means for controlling the movement of the said annulus.

14. In a typewritingmachine, in combination, a platen, an operative member hearing a fixedly attached projection, indicating means called into operation through said member, frictional connecting means between the said member and the platen, having a pressure-spring with central backing, and sheetcontrolled means for detaining the said member, in constant starting position and for releasing the member to move with the platen when the sheet-end arrives at a constant distance from the printing point.

In testimony whereof I aflix my signature in presence of two Witnesses;

WILLIAM J. NETDIG. Witnesses: p

CHAs. F. RANDALL, NATHAN B. DAY.

copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0."

Images