US830480A - Type-writing machine. - Google Patents

Description

N0 830,480. 1 PATENTED SEPT. 4, 1906.

0. c; KAVLE.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 7. 1905.

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zwzwmraf 2 0. 0. KAVLE. 4 TYPE WRITING MACHINE. APPLICATION FILED JUNE 7, 1905.

PATENTED SEPT; 4, 1966,

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1222673902? wzwwgv M. 7%zzzziw UNITED sTAr s PATENT oEEroE.

osoAR o. KAVLE; or 'svmcusiaNEW YORK, ASSIGNOR TO HARVEY A. MOYERAND .EMMIT e. LATTA, OF SYRACUSE, NEW YORK-,-

' TYPE-WRITING MACHINE.

To. all whom it may concern.-

Syracuse, in the county of Onondaga,.in the State of New York, have invented new and useful Improvements in Type-Writing Machines, of which the following, taken in connectionwith the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improvements in type-writing machines of the class commonly known as front-strike? or visible-Writing machines, and refers more par- I ticularly to the paper-holding and alining mechanism as associated with a verticallyshiftable platen.

My first object is to provide suitable lineindicator plates which are adjustable vertically with the platen and not only maintain a fixed relation to the printing-line in printing with lower. or, u per case type, but also serve as a means or pressing the paper lightly against the platen at the printingline and also to facilitate the lining up'of ruled or blank forms, so that the printed matter may be accurately alined.

' A further object is to utilize these indicator-plates to determine the exact position of any particular letter or space with reference to the printing-point and to press the paper 3 against the platen at the printing-line close to and at opposite sides of the printing-point. Another object is to rovide individual paper-holders which may e adjusted lengthwise of the platen and to mount these holders in such manner that their up er ends may be thrown forwardlyindividual y or simultaneously and held in this position to allow corrections or erasures to be made on each copy I of manifold-work Without liability of displacing such copies in the machines. In other words, my purpose is to-mount the pa erholders upon a rock-shaft below the printingline and at the front of the platen and to arrange these holdersso that they may be thrown forwardly and downwardly, leaving the printed part of the sheet entirely-free to be turned or folded forwardly to facilitate the.

work of corrections or. erasures.

Other more specific objects and uses will be brought out in the following description.

In the drawings, Figures 1 and 2 are respectively front and end elevations of a platen and its carriage and the various parts of my invention associated therewith, and includ- Specification of Letters Patent. Application filed June7,1905. Serial No. zealso exte ends of the platen spindle or trunnion b.

lPatented Sept. 4, race.

in'g particularly the paper-holding devices and indicator-plate. Fig. 3 is an end view of theplaten, showing one of the paper-holding devices and its supportingqod. Fig. 4 isa sectional viewtaken on line i 4, Fig. 1, showing the same parts'as seen in Fig. 3.

Fig. 5.

is a front face view of a modified form of paperholder and index-plate. Fig. 6 is a sectional view takenfon line 6 6, Figi 5, showingin addition the platen. v

A represents a vertically-shiftable carriagesupporting frame of a frontstrike type-.writing machine, and although my present invention may be used in connection with any kind of a supporting frame which is vertically shiftable I prefer to use an oscillatory frame, as shown in Fig. 2, such frame being provided with.rearwardly-extending arms a, which are pivoted at a at the rear of a suitable platen B upon any available part of the main supporting-frame C, only a portion of which is shown in Fig. 2. This oscillatory frame A is provided with a track A some distance in front of its pivota/ andparallel with the axis of the platen B said track having a suitable ball-race 1 running along its top edge for receiving suitable ball-bearings 2 and is also provided with one or more ball races or pockets 3 opening from its front face near the bottom of-the track for receiving and retaining ball bearings 4, which latter protrude slightly beyond the open side of the ball races or pockets 3..

A platen-supporting carriage D is supported ugon the ball-bearingsZ and 4 and is provide with a lengthwise hood 5, overhanging the ball-race 1 and having a lengthwise rooveion its inner face for receiving andorming a bearing for the ball 2, said hood protecting the bearings from the accumulate tion of dust or other foreign substance which might interfere with the free action of the carriage along the track A. This carriage D ,s downwardl across the open sides of thi' be arings 3 an is therefore located in front of the track A and bears against the front faces of the balls 4, said carriage being provided with forwardly-extending arms 6, one at each end ofv the platen B, and each of these arms 6 is provided with a bearing 7, open at the top and receiving the adjacent It now appears that the platen B is supported in a carriage in front of the bearings 2 andt and that said carriage is practically susdisturbing the shifting support A.

Any suitable shifting means, not necessary to herein illustrate or describe, may be applied to the oscillatory frame or support A to shift the same vertically, 'or rather to rock the same upon its pivot a, for the purpose of shifting the carriage D and its platen B vertically to change the position of the latter for printing with upper and lower case type, it

eing understood that in front-strike machines it is customary to employ two type on each type-bar and that under such circumstances it is necessary to shift either the platen or the type-bars to chan e from one case type to the other, and, w 'le I have shown and described the specific form of shiftin support for the platen, yet I reserve the rig 't to shift the type-bars, if found to be more practical or expeditious.

- When the shiftable platen-support-is used in the manner described, I provide the oscillatory frame A with a central arm 8, extending downwardly and forwardly under the plate-B and terminating at its front end in an elongated yoke 9, extending equal distances at opposite sides of the central arm 8, each end ,of the yoke being provided with a pair of ears 10, in which are mountedseparate pivotal pins 11. Pivotally mounted upon each pivotal pin is a similar indicatorplate 12, having their lower ends seated between their respective pairs of ears 10 and their upper edges disposed in the. samehorizontal plane closeto the front face of the platen and in a line parallel with the printing line and a distance below said printing-line substantially equal to half the vertical height of the type, so that the top edges of both index-plates are exactly coincident with the bases of the type. The inner or adjacent edges of these indicator-plates are disposed in parallel vertical lines and are spaced apart a distance corresponding to a certain number, in this instance six type-spaces, and the upper end of each index-plate 12 is provided with graduations13. Each of the indicatorplates 12 has its lower pivoted end bifurcated for receiving acoil-spring 14,'which is mounted upon the pivot 11 and has one end engaged with the yoke 9 and its other end hearing upon the front face of the plate 1.2, thereby pressing the upper end'of said plate lightly toward the platen and against the paper, which may be, wrapped thereon, the upper edges of said plates being deflected rearwardly so as to bear upon the'paper in the same straight line. parallel with and close to the printing-line.

The front endsof the arms 6 of the carriage D are extended forwardly and downwardly and are provided with suitable apertures in which are journaled the opposite ends of a rock-shaft 15, carrying a pair of longitudinally-adjustable paper-holders 16, presently described.

Rigidly secured to one end, preferably the left-hand end of this rock-shaft, is a for wardly-extending finger piece or lever 17, which forms an abutment to prevent endwise movement to the right, and at the other end of the rock-shaft is rigidly secured a collar 19, which prevents endwise movement of the shaft in the opposite direction. This rock-shaft is preferably angular in cross-section and is provided with a flat front face which is graduated into suitable letterspaces corresponding withthe graduations on the plates 12 and cooperate with the graduations'on said plates to determine the position of the printed matter with reference to the printing-point.

Each of the paper-holders 16 is identical in construction, and I will therefore describe only one of them, which consists, essentially, of a strip or band of spring metal having its intermediate ortion forming a loop 19, fitted upon the roc r-shaft 1.5 and having one end extended upwardly across and against the flat face of the rockshaft and terminating in a pair of ears 20, in which is mounted a piv otal pin 2]., while the other end is brought forwardly from the rear over the top face of the bar between and in front of the ears 20 and is then'deflected upwardly for forming a spring-arm 22, which bears against the front face of a roller-sup orting frame 23. The lower end of this roiier-supporting frame 23 is formed with an eye pivoted upon the pivotal pin 21, and the opposite longitudinal edges of its upper end are bent forwardly for formingears 24, in which is mounted a pivotal pin 25, carrying a roller 26, which latter :bears upon the periphery of the platen, or

rather against the surface of the paper thereon.

As best seen in Fig. 1, each of the roJh-rsupporting frames 23 is provided with a oon tral opening 27, having its lower end terminating in a line substantially coincident with or slightly above the upper end of the springtongue 22. It will be observed that this spring-tongue 22 normal'ly bears against the front face of the roller-s11pporting frame iii, thereby pressing said frmue rearwardly and holding the roller 26 in engagement with the paper on the platen B, but owing to the fact that the frame 16 is pivoted at its lower end below the upper extremity of the spring-arm 22 the upper end of said frame 16 may be rocked forwardly against the action of the nis ing alining devices at 'each end and atthe center of'the platen by means ofwhich any was srin 22 until the u' er end of the latter 9 s PP may be shifted by hand lengthwise of the platen and rock-shaft to any desired position, thereby carrying the roller-supporting frame 23 with it.

roller 26 is located above the printing-line, and the upper end of the frame 23 is extended above the roller and is bent forwardly a slight distance, forming a finger-engaging portion '28, whereby theupper end of the frame may be rocked to and from its operative position, the spring 22 servin t0 retain.

it in either position, and when t is rollersupporting frame is rocked to its inoperative position, as shown by dotted lines inFig. 3,

it is clearly evident that the paper or mani-' 'fold copies in the machine may be readily drawn in either direction to bring them into vertical alinement with the scale on the bar 15, or rather to bring the bases of the printed lines of the pa er into registration with the upper edges '0 the plates 12, or such caper or manifold copies may be shifted lengthwise of the platen to bring any particular letter into registration with one of the graduations 13. In order to further facilitate the lining-up of the paper withireference, to the rinting line or point, I provide each pa eriolder with an alining-plate 30, whic is made of thin sheet metal having its lower end provided with suitable ears, which are pivoted upon the ends of-the pivotal pin 21, the

upperedge of said plate'30 being disposed in a straight horizontal line coincident with the up er edges. of the plates 12, thereby furruled pa er or printed blank forms may be accurate y adjusted to the printing-line. The carriage-sup orting frame A, and therefore the index-p ates 12, are fixed from endwise movement, and as the upper edges of the plates 12 are graduated to correspond'with the scale-bar 15 the position of any im ression made by the type which strikes mi( way vspective frames 23, andwhilethey are perbetWeenthe adjacent edges of the-plates 12 may be readily determined by comparison with the graduation on the scale-bar15 mid way between the adjacent edges (if said plates The plates 30 lie just back of their remittcdto press lightly against-the paper they are prevented from endwise for-Ward displacement by the frames 23, and their lower ends It will also be observed that the This roller-supporting frame 23" is pivoted below the' printing-linef'but its,

are provided with forward spring extensions 32, which bear upon the s ring-arms 22 in front of the pivots 21, sai spring-arms 32 serving to yieldingly force the lates '30 toward the platen and against t e paper thereon. In order tohold the rock-shaft 15'and its apereholding devices 16 in their extreme ad j sted positions, I provide the hub of the %nger-pi ece- 17 with suitable shoulders or notches 34 and 35,-whichare engaged by' the free end of a s ringdetent 36, said .detent having its'ot r end secured to the under side of the arm 6 bysuit able fastening means, as a screw 37. The 0 posite faces of the notches 34 and 35 and a so the free end "of the spring-pawl 36 are beveled in the direction of rotation of the rock-shaft 15 to permit said rock-shaft to be readily turned by means of the hand-piece,

17, the free end of the 5 ring engaging in the no ch 34 to hold the roc shaft and its paper-- ment of the parts just described enablwme to throw both of the paper-holding devices into and out of operative position by-the backward or forward movement of the hand-.

piece 17', or, if desired, the rock-shaft may be eft in its normal position and either of the paper-holding devices may be thrown forwardlyor backwardly by hand independ ently of the other. I 7

It will be observed that the outer ends of the central line indicatorrplates 12 are curved forward slightly, so that as either of the paper-holding devices approach the printin'gr v pomtthey strike these curved-parts and cause them to spring away from the platen, thereby allowing the paper-holders to run under or back of the indicators until the part 22 strikes the lower part ofthe left-hand plate 12, whereupon the further movement of the carriage causes the paperholding finger to slide on the bar 15, and thus prevents the finger from-passing in front of the printingtype point where it might injure the-face of the a somewhat simpler and less expensive co'nstruction and comprises a papersholding finger 16 and a single central indlcator plate 12, the paper holding finger 16f consisting of a spring-frame 23, having its lower end formedwith an, eye 19', which is closely fitted upon the angular scale-bar 15 and has its cen tral portion formed wi tha depending springtongue 22', which bears upqnthe front flat face of the rock-shaft or scale-bar 15, therebyv holding the paper-holding device 16 yieldingly in its operative position and at the same time permitting said frameto be drawn forwardly by hand, causing the free end of the spring-arm 22 to ride or slide transthe platen.

versely across the flat face of the bar 15 until it rides against the curved lower face of said bar, but when returned to its normal operative position it is frictionally held by contact of the spring-arm 22 with the fiat face of the bar 15. Otherwise the construction is very similar to that seen in Fig. 3.

The essential difference of the indicator- .plate 12 over that seen in Fig. 1 is that it is formed in a single piece of thin metal having its lower end hinged upon the front end of an arm 8 similar to the arm 8, while its upper end is bifuracted and is provided with opposite graduated parts 13 extending to the graduated parts 13 of the plates 12, the intervening space permitting the operation of the type to and fromthe platen and also exposing the working part of the inking-ribbon, said plate being held in its operative position by a spring 14' similar to one of the springs 14, Fig. 1.

One of the important objects in mounting the index- plates 13 and 13 upon the forweirdly-extending arm of the vertical-shifting carriage-en porting frame, as A, is that these indicatorates are always shifted vertically with the p aten, as distinguished from the ordinary method of securing the index-finger rigidly to the frame of the machine or to a part rigidly connected thereto, in which case the index-finger does not, of course, shift with This vertical shifting of the indicator-plates is important from the fact that when printing near the end of the sheet there is no liability of the ends of the paper engaging upon and being displaced by engagement with the indicator when the platen is returned after having been shifted.

When it is desired to make an erasure on a number of sheets, as in ma nifolding, the lever 17 is depressed until the s ring 36 engages the notch 35, during which 0 eration both paper-holders 16 are thrown 'orward'ly and are held in this position, thereby enabling the operator to turn'back the sheets and make the proper erasures on each sheet without liability of displacing the carbon-sheetsor papers, after which the lever and paperholders are returned to their normal positions and the proper correction made where the erasures occurred,'and when an erasure is to be made near the paper-holder on a single sheet it is .only necessary to draw that particular holder forward by hand in the manner described and then be returned after the erasure is made.

An important advantage obtained .by pivoting the paper-holders below the printingline and adapting them to be turned to the osition shown by dotted. lines in Fig. 3 and held in that position is that they are then so far removed from the platen that the holders do not cause the interposed carbon-sheets to smut the-work when a number of manifoldsheets are turned forwardly over the holders for the purpose of making erasures on the sheet or sheets next to the platen.

What I claim is-- 1. In a front-strike type-writing machine, the combination of a platen-carriage and platen thereon, an oscillatory support having a track for the carriage, an arm rigid on the support and extending forwardly under the platen, and an index finger or plate mounted on the front end of the arm.

2. In a front-strike type-writing machine,

a laterally-movable carriage, a platen there- 'on, an oscillating shiftframe supporting the carriage, an arm projecting forwardly from the shift-frame, and an index finger or plate having its lower part pivotally connected to said arm, and its upper part yieldingly held against the platen, and acting to cause the index-finger to retain a fixed relation with the printing-point regardless of the move ments of the platen. g

3. In a front-strike type-writing machine, an oscillatory carriage supporting frame fixed from endwise movement and having a central forwardly extending arm, a carriage mounted on the frame, a platen supported on the carriage above said arm and a spring-pressed index plate or finger mounted on the arm with its upper edge pressed toward the platen and parallel with the printing-line.

4. In a front-strike type-writing machine, an oscillatory carriage-supporting frame having a central forwardly-extending arm, a carriage mounted on the frame, a platen on the carriage and a spring-pressed index plate or finger pivoted to the front end of the arm below the printing-line vilth its upper edge pressed toward the platen and disposed below and parallel with the printing-line 5. In a front-strike type-writing machine, the combination with a platen, a carriage the platen, and an oscillating shift-frame for the carriage, of a rod. or bar extending parallel with the platen and supported by the carriage below the printing-line, a pair of upright paper-holders slidably mounted on the bar and normally moving therewith, and an index finger or plate located between said paper-holders outside of said bar, and connected to the oscillating shift-frame so as to vibrate therewith without lateral movement.

6. In a front-strike type-writing machine, a platen movable latera in combination with a pair of line-indicators operatively connected to move with the platen in both directions, and a central lineindicator operativelyconnected to .move transversely only, the" upper edges of all said indicators being arranged in a straight line parallel with, and adjacent to the printingline.

Z. In a front-striketype-writing machine, the combination 'with a platen, and its carriage, of an upright paper-holder in front of for ly and transversely,

' the platen and-fulcrumed below the printing line, a'bar forming a support for the paper holder and extending parallel with the platen, and a spring acting to frictionally secure the paper-holder against accidental movement along the bar, and also acting to press the paper-holder against theplaten, or hold it away from the same as required.

8. In a front-striketype-writing machine, the combination with a platen movable axially and transversely of its axis, and a car-- riage for the platen, of a rock-shaft mounted on the carriage, and a plurality of paper holders 'pivotally connected to the. rock shaft, each holder having a spring acting to retain it in either of two positions, the paperholders being 'slidable along the rock-shaft and having their pivoted ends connected thereto in a way to cause them to swing to or from the platen with the rocking of the shaft, or to permit thepaper-holders to be turned on their pivots to either of the spring-holding positions independent of the movement of the shaft.

9. In a front-strike type-writing-machine, the combination with-a platen, a carriage for the platen, and a rock-shaft arranged parallel with the platen, of two paper-holders laterally adjustable on the rock-shaft and pivotally connected thereto, a spring acting to hold each of the paperffingers in either of two positions, and means for rocking the shaft and holding it in'either of two positions.

10. In a front-strike type-writing machine, a platen, and a carriage supporting the platen without obstructing its frontand upper side, in combination with an upright paper-holder fulcrumed below the printing line, a spring acting normally to press the upper part of the holder against the platen, and means acting to holdthe paper-holder in a forward position when desired. a

11 In a front-strike type-writing machine, the combination with a platenand its carriage, of a curved paper-holder iulcrumed at its lower end below the printing-line, and means for holding the upper part of the paper-holder upright against the platen above the print ng-line, or in a prone position to permit the paper to be turned forward clear from the platen above the printing-line.

12. In a front-strike type-writing machine, the combination with a laten and its carriage, of a pa er-holder in crumed at its lower end. below t e printing-lineand extending upwardly and rearwardly over the printingline, said holder having a pressure-roller fulcrumed betweenits ends, and a spring normally holding the paper-holder against the platen, or in a downward position when erasures are to be made.

13. In a front-strike type-writing machine,

a platen, in combination with a rock-bar in front of the platen and below the printingpoint, pape;=-- =;elders clamped upon and movable with the bar to engage the paper above the'printing-line, means for rocking the bar, and additional means for holding it in either of its adjusted positions.

14. In a front-strike type-writing machine, a platen and its su porting-carriage, in combination with a roc -shaft mounted upon the carriage parallel with, but below the printing-line, a line-indicator fixedfrom endwise movement, means to shift the carnage and indicator transversely of the axis of the platen, paper-holders clamped to the bar at op osite sides of the line-indicator and slidab e lengthwise of the bar, line-indicators each having operative connection with one of the paper-holders to slide therewith and lengthwise of the paper.

15. In a front-strike type-writing machine, thecombination with a platen, and its carriage, of a rod or bar arranged below the printin -line and arallel therewith, and a paper-ringer latera ly adjustable along said bar having two separate parts bearing against the platen above the rod, one of said parts being movable away from the platen, and means for holding the movable part in either of two positions.

I It; In a front-strike type-writing machine, the combination with a platen, and its car riage, of a rod or bar arranged below the printing-line and arallel therewith", and a paper-finger latera ly adjustable along said bar having two separate parts both above said rod and terminating one above and the other below the printing-line, with means for holding both parts yieldingly against the platen.

17. In a front-strike typewriting machine, the combination with aplaten, of a rod or bar arranged below the printing-line, a lineindicator, and a paperger supported by the rod both normally 'in contact with the platen, and means ermitting the paper-fin ger to swing away rom the laten irrespective of the indicator, said r0 swinging both the indicator and finger away therefrom as desired. 9

18. In a'front-strike type-writing machine, the combination with a platen, of a rod or bar arranged below the printing-line, a lineindicator and a pa er-finger arranged on the rod, the indicatorv being in rear of the finger, and the finger having an opening through which the indicator can be seen.

19. In a front-strike type-wri ting machine, the combination with a platen, of a rod or bar arranged below the rinting-line, a paper-fin er, and a line-in icator arranged on the r0 both normally in contact' with, the

laten, and the finger being made to swing orward independently of the indicator and the rod bein connected to swing both the finger and indicatonforward as desired.

20. In a front-strike t e-writing machine, the combmation-with a Ehiit-carriage, and a and additional laten, of a supporting-frame having a track ported by the central extension in front of 10 or the carriage line-indicators, one at each the platen independently of the carriage. side of the printing-point supported by the In witness whereof I have hereunto set my shiit-frgineiwrf hereliy it shifts with the platen hand this 1st day of June,-1905. 5 an is 6 rom atera movement.

21. In a front-strike type-writing machine, OSCAR KAVLE' the combination with a shift-carriage and Witnesses:- a platen, of a carriage-shift frame having a H. E. CHASE, central extension, and a line-indicator sup- E. G. LATTA.

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