US1278472A - Type-writing machine. - Google Patents

Description

W. S. IRELAND.

TYPE WRITING MACHINE.

APPLICATION FILED NOV- IB. l9l6- r 1927g%?20 2 SHEETS-SHEET llZZ 4 din 6 44a,

Patented Sept. 10,1918.

W. S. IRELAND.

TYPE WRITING MACHINE.

. APPLICATION FILED NOV. 18. I916. Lmafim Patented Sept. 10,1918.

2 5HE ETSSHEET 2.

u'iil WARD s. IRELAND,

or srtouis, mssoum, assxeivon T NATIONAL snommaivn MACHINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF DELAWARE.

TYPE-WRITING MACHINE.

To all whom it may concern:

' use in shorthand machines.

The paper Be it known that I, WARD S. IRELAND, a citizen of the United States of America, a resident of the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in typewriting machines, and more particularly to paper feeding mechanism adapted for One of the objects of the invention is to produce a strong, simple and accurate paper feeding device adapted to cooperate with the finger keys of a shorthand machine, and adapted to advance the paper a fixed distance during each key operation. To insure the desired accuracy, the paper feeding device preferably includes gripping elements which positively grip the paper and hold it very firmly throughout the paper feeding operation.

feeding device moves a fixed .distance during each operation, and since the paper is prevented from slipping by the positive gripping devices, it also travels a fixed distance during each operation. An accurate paper feeding device of-this kind is particularly adapted for use in a shorthand machine wherein the paper is to be led step by step (line by line) in response to the key operations.

Figure I is .a' shorthand machine embodying the features of my invention.

Fig. II is an enlarged detail view showing the paper straightening device and the yieldable paper guide located adjacent thereto.

Fig. III is a transverse section taken approximately on line IIIIII,Fig. I, lookin g toward the front of the machine.

Fig. IV is a vertical section of the paper feeding device, showing the parts as they appear during their backward, or idle move ment.

Fig. V is a view similar to Fig. IV showing the positions of the paper feeding elements at the beginning of a paper feeding operation.

Fig. VI is a View of the paper feeding elements as they appear at the end of the paper feeding. operation.

Fig. VII is a detail view of the means for longitudinal section of a (Fig. I) connected the key other, or any desired number of key Specification of Letters Patent. Patqantedl-sgph 16), 19118, Application fil ed November 18, 1916. Serial No; 132,063.

preventing retrograde movement of the paper. To illustrate the invention, I have shown a shorthand machine'provided with a housing 1, a type holder 2 arranged in said housing (Fig. I) a type bar 3 loosely secured in said type holder, a yieldable abutment-3' arranged in the type holder and fitted to the type bar 3, and an'inking ribbon 4 adjacent to the line of type on the type bar 3. The paper passes from a supply roll A, over a. roller 5, under and partially around a roller 5', in front of and over a roller 6, to a paper straightening device S, and then to a paper feeding device whereby it is unwound from.

the roll and fed through an opening 7 at the rear of the machine.

The key actuated devices preferably include a series of angular levers each having an upwardly extending arm 8 at its front end (Fig. I) and a character key 9 at the upper end of said arm. Any suitable shorthand code may be used, and, if desired, the keys may be provided with characters corresponding to the line of type characters on the type bar 3. Each key lever includes an arm 10 extending rearwardly from its arm 8, and an arm 11 extending upwardly from the rear portion of said arm 10. The series of key levers is pivotally supported by a pivot member 12 locatedat the junctions of the lever arms 10 and 11. The upper endof each lever armll is provided with a forwardly extending hammer 13 which lies adjacent to the type 3. Restoring springs 1a to the lever arms 10, tend to retain the upperends of lever arms 11 in engagement with an abutment 15.

When one of lever associated therewith turns about the axis of pivot member 12 and a printing hammer 13 moves toward the type 3, thereby forcing the paper and inking ribbon toward the type and printing one of the type characters on the paper. The key levers may be oper; ted independently of each levers may be operated simultaneously.

The universal bar associated with the key levers includes a transverse abutment 18 the finger keys 9 is depressed,

on opposite sides of the lever arms 11, and

secured near their upper ends to the trans' yerse abutment 18. 23 designates a restormg spring (Fig.- I) connected to the universal barand tending to retain it in the a position shown in the drawings; The transverse abutment 18, forming part'of' the universal bar structure, is so arranged thatthe universal bar will move in res onse to'movements of. any one of the key levers.

24 designates a key lever guide, arranged near the junctions of thekey lever arms and 11, and adapted toreceive the wings which extend rear'wardly from the key leportions of said side members- Apivot rod I so ' faces 29', arepivot-ally connected at 31, to

28, extending across the stationary frame, is 3ournaled in the side frame members 25.

The gripping elements include a pair of oscillatory gripping arms 29 secured a6 thei'rf lower ends, to the pivot rod 28, the upper end of,'each of said arms being provided with a lateral extension havlng a cam-shaped gripping face 29. Gripping levers 30, arranged below the" gripping the oscillatory gripping arms, 29. These gripping levers 30 have cam-shaped gripping faces 30' adapted to cooperate with the gripping faces 29"in holding the paper dur mg the paper feedingoperations. It may be noted at this point that the gripping levers 30 are movable about the axis of their pivots 31, to secure the margins of the paper between the gripping faces 29' and 30. The gripping levers 30 are also adapted to move in unison with the oscillatory gripping arms 29, to which said levers are pivotally connected.

The means fordriving'the gripping elements includes a sleeve 32 loosel supportedon the pivot rod 28, and provldedwith a pair of upwardly extending lever arms 33 to which the lower ends of gripping levers 30 are pivoted. The upper end of each-lever arm 33 is preferably slotted, as shown by dotted'lines in IV, to receivethe ivot pin 34 atthe lower end of av ipping l ver 30. A lever arm 35, depemfi sleeve 32, is preferably connected to the uni-.

versal bar by means of a yieldable link 36."

Restoring springs 37,]Con1iected to the oscillatory gripping arms 29, tend to retain said arms intheir normal or starting positions. The universal bar oscillates about the axis of pivot member 12 in responsewto movefeeding device, through the medium of the ng from the paper feeding device to advance the paper as will be presently described, and at the end of the paper feeding operation the printing hammers force the paper and inking ribbon toward the type. During the return move. ment of the universal bar the paper feeding elements are restored to their-normal or starting position. When the parts occupy the last mentioned. position, the restoring.

springs 37 connected tothe oscillatory gripping arms 29, tend to pull the upper ends of said armstoward the front of the machine; and this action causes the gripping elements to grip the paper so as to avoid slippage, or

lost motion, at the beginning of the paper feeding operation. To clearly understand this, it should be noted thatboth of the long gripping arms 29 aresupportedby the pivot rod 28; the driving device, including sleeve 32 and lever arms .33 and 35, is loosely fitted to said pivot rod and connected to the universal bar, and the gripping levers 30 are pivoted to the long gripping arms 29. Ob: -viously, the lever arms 33 are under the control of the universal bar, and when the latter is stopped in its normal position, the arms 33 are-held in a fixed position. How- .ever, the long ipping arms 29 are free to move, to a cer in extent, independently-of the universal bar andlever, arms 33; When the long gripping arms 29 are pulled to their starting position, by springs 37,- the pivots 31 move with-said arms but the'lower ends of gripping levers 30are retardd by lever arms 33 when the latter"reachtheir normal position. Hence, as the long gripping arms 29 continue in motion, under the influence of springs 37, the gripping levers.

' gripping levers 30 turn about the axis of the pivots 31 to-force their gripping faces to-. ward the gripping faces 29, thus gripping the paper when the parts are at rest intheir starting positions.

When the universal bar begins its movement, it pulls the link 36 in the direction indicated by the arrow in FigfV, thus pulling the lower end of lever arm 35 forwardly and moving the upper ends of lever arms 33 rearwardly. .--This action, tending to. turn the gripping levers 30 about the-axis of the pivots 31, forces the gripping faces into engagement. withthe paper While" the parts are in this condition, and the link 36 is moving in the directionindicated in Fig. V, the

3 lever arms 35 and 33,- through gripping ments of the key levers, and motion is trans-. mittd from the-universal bar to the paper levers 30 to the long gripping arms 29. Therefore, all of. the gripping ele; ments move together during the panenfe'edthe gripping ing action, and this movement is in an arouate path, about the center of pivot ,rod 28. 'Fig.,VI shows the parts, as they appear at the end of the feeding operation. When the universal bar begins its return movement, the link 36 is thrown, very quickly, in the direction indicated in Fig. IV,thereby "reversing the movement of the driving arms and 33, "so as to shift the gripping faces of levers 30-away from the gripping faces 29 -This releases the gripping elements and permits springs 37 to restore the long grippln arms 29. During'the return movement 0 the parts, the gripping faces occupy, approximately, the relative positi'ons shown in Fig. IV, and after the universal bar has completed its return movement, the springs 37 move the long gripping arms 29,,independentlyof the, lever arms 33 so as) to force the gripping elements into engagement with the paper.

In feedlng the aper, the'gripplng members 29 and 30 mo e in unison, however, the

parts are so arranged that thedriving device forces the gripping faces' 30 ackwardly with respect to the movement of the paper. Of co rse, these gripping faces 30 do not travel backwardly during the feeding operation, but-in transmitting energy from the universal bar to the long gripping arms 29, the upper ends of gripping levers 30 tend to move backwardly, such movement being limited,,0r prevented, by the paper which lies between the gripping faces. The paper is'firmly gripped throughout thefeeding operation, and if for any reason an unusually severe pulling action is required to feed the paper, the cam-shaped gripping elements will automatically gr1p the' paper more firmly, this being-due to the manner in which the ipping elements are arranged, and also to t e shape of the cam-like gripping faces.

. The means for preventing retrograde movement of the paper comprises a stationary gripping arm 40, extending from the stationary cross-bar 26 at a point *near the center of the path of the paper, and provided with a cam-shaped gripping face 40 (Fig. VII) adapted toengage the paper. A yieldable gripping lever41, pivotally connected to a stationary arm with a cam-shapedgripping face 41' adaptgripping face 40.

a light spring, connected to lever 41, and tending to force the gripp' Y face 41' toward the gripping face 40. e gripping lever 41 will yield freely. to permit the paper "to travel in the direction indicated by the arrew in Fig. V II,

but on account of the shape andarrangement of the gripping elements 40 and 41,

they will prevent retrograde movement of the paper.

T e paper straightening device comprises 42, is provided 0 a pair of rotatable creasing rolls 45 and 46, located in the path of the paper at a point between the printing device and paper feedin device, said creasing rollsbeing journa ed in bearing members 47. The upper roll 45 has an annular groove 48 for the reception of an-annular rib 49 which projects.

from the lower roll 46. The paper feeding p device pulls the paper between the creasingrolls 45 and 46, so as to rotate said rolls. The annular rib 49 forces a portion of the paper into the annular groove 48, thereby creasing the paper to form a longitudinal reinforcing rib therein, which prevents the paper from re-curling after it passes from the machine.

The type bar 3' (Fig. I) engaging the yieldable abutment 3, is free to yield in response to the pressure of the printing hammers 13. If these printing hammers con tinue to move forwardly after the paper has been clamped betweenthe printing elements,

the positive paper-feeding-device will conthe feeding device from tearing the The paper straightening device herein shown is claimed in an application for patent filed by' me on Nov. 18, 1916, Serial Number 132,070. The printing elements are claimed in an application filed by me on Nov. 18, 1916, Serial Number 132,076. The universal bar is claimpd in an application filed by myself and W: E. Lippert on Nov. 18, 1916, Serial Number 132,078.

I claim: 1. In-a typewriting machine, a paper feeding device comprising a pair. of oscillatory gripping elements, a ,pair of pivotally sup-, ported levers adapted to cooperate with said oscillatory gripping elements, said levers being movable about their axes toforce the paper into engagement withsaid oscillatory gripping elements, and means foroscillating said levers and oscillatory gripping elements in unison to feed the paper.

2. In a typewriting machine, a pap .r-feeding mechanism comprising an oscillatory device having a pair of grippingfaces, ;a pair of pivotally supportedlevers each havmg a gripping face adapted to cooperate with one of the first mentioned faces, and means for moving said levers about their plvots to grip the paper between said levers and-oscillatory device, said levers and oscillatorydevice being movable in unison to feed the paper. i

3. In a typewritin'g machine, apaper'feed- -ing' device comprising anoscillatory gripping device, a gripping lever pivoted to said ver being movable about the axis of its pivot to grip the paper between said oscillatory gripping device and "gripping lever, and means'for moving all of said parts 1n unison to feed the paper, said meansincluding -'a universal bar and means for. transmitting movement from said universal bar to said gri ing lever. A p a typewrlt ng machlne, a paper feeding device comprising a pair of oscillatory members-each having a gripping face,

'.a' pair of gr'ippinglevers pivoted to said oscillatory members, said gripping levers being provided\ with gripping faces adapted to cooperate with the gripping faces of said oscillatory members,-the gripping levers being movable with respect to said oscillatory I members so as 'to grip the paper, and means "for moving all of said parts in unison to feed the paper, said means including a universal bar connected to said gripping levers.

5. In "a' typewriting machine, a' paper feeding device comprising a pivot member, an oscillatory gripping device pivotally s pported by said pivot member, a gripping ever pivoted to said oscillatory grlpplng device, the axes of said gripping lever and oscillatory grippingdevicmbeing in different planes, said oscillatory gripping device being provided' with a gripping face adapted to coopeiate with saidv gripping lever and said lever being movable toward and away from the'gripping face of said 35 oscillatory gripping device, and means for moving all'of said parts about the axis of said oscillatory gripping device so as to feed the paper. a I

el In a typewriting machine, a paper f ding device comprising a pivot member, an oscillatory grippmg-devioe'pivotally supported by said pivot member, a gr pping lever pivoted ;to said oscillatory gripping device, said gripping, lever and oscillatory grip-ping device being provided with grippin-g faces adapted to cooperate with each other to gripthe'paper, and means for moving all of said parts .about the axis. of said I oscillatory gripping device so as to feed the ping elements paper, said means including an operating device connected to said gripping lever. 7. In a typewriting machine, a, paper feeding device comprising a pair of oscillatory gripping elements, a pair 'of gripping levers pivoted to said oscillatory gripping elements, said gripping levers being movable with respect to said oscillatory gripsoas to grip the paper, and

an operating device pivoted to said gripping levers, said operating device being adapted levers about the axis of the said oscil atory gripping elements.

8,. In a typewritmg machine, a paper elements, said gripping levers being mov-" .able toward the gripping faces of said oscillatory gripping elements so as to grip the paper, and a driving device including lever arms pivoted to said gripping levers.

9. In a typewriting machine, a paper feeding device comprising a' pair of oscillatory gripping elements, a pair of gripping .levers pivoted to said oscillatory gripping.

elements, said gripping levers beingmovable towardthe gripping faces of said oscillatory gripping elementsso as to gri the paper, and-a driving deviceincluding ever arms pivoted to' said gripping levers, said lever arms being movable about the axis of said oscillatory gripping elements to force the gripping faces into engagement with the p.aper, at the same time feeding the paper.

" 10. In a, typewriting machine, apaper I feeding device comprislng a pair of oscillaping elements "and" pivoted to said gripping levers, said driving, device being movable independently of said oscillatory, gripping elements so as to force thergripping faces .of said gripping levers into engagement with the paper, and the said driving device being operable to move all of, said parts about the axis of said oscillatory gripping elements in feeding the paper.

11. Ina typewriting machine, a paper feeding device comprising a pair of oscilla tory gripping arms each having an extension provided witha gripping face, a pivot 'member supporting said arms, a driving device comprising a pair of lever arms pivotally supported by said pivot member, a pair of gripping levers pivoted to said lever arms and pivotally supported by said oscillatory gripping arms, said gripping levers being provided with gripping faces adapted to cooperate with the gripping-faces of said oscillatory gripping arms, all of said parts being movable abouttheaxis of said oscillatory gripping arms. a

12; In a. typewriting machine, a paper feeding device comprising an oscillatory device having a pairof gripping faces, a pair of gripping levers pivoted to said oscillatory device, said gripping leverg being provided with gripping faces adapted to cooperate with the gripping-faces of said oscillatory device, the gripping levers being movable with respect to said oscillatory device so as including a universal bar connected to sai gripping levers.

13. In atypewriting machine, a paper vice having a pair of gripping faces, a pair its to grip the paper, and operating mechanism tomove sa d oscillatory. gripping elements *and the grip ing feeding device comprising an oscillatory deof gripping levers pivoted to said oscillatory device, said gripping levers being provided with gripping faces adapted to cooperate with the gripping faces of. said oscillatory device, the gripping levers being movable with respect to said oscillatory device so as to grip the paper, and operating mechanism including a universal bar connected to said gripping levers, and a spring for restoring said oscillatory device.

14. In a typewriting machine, a paper feeding device comprising a pair of gripping elements one of which is pivotally supported by the other, and means tending to force the gripping face of said pivotally supported gripping element backwardly with respect to the movement of the paper so as to grip and at the same time feed the paper.

15. In a typewriting machine, a paper feeding device comprising an oscillatory gripping device, a gripping lever pivoted to said oscillatory gri ping device, and means tending to force the gripping face of said lever backwardly with respect to the movement of the paper so as the same time feed the paper, said means including a universal bar connected to saidlever.

16. In a typewriting machine, a paper feeding device comprising an oscillatory gripping device, a gripping lever pivoted to said oscillatory gripping device, and means latory gripping arms, s

to grip and at tending to force the gripping face of said lever backwardly with respect to the movement of the paper so as to grip and at the same time feed the paper, said means including a drive member secured to said gripping lever.

17. In a typewriting machine, a paper feeding device comprising a pair of oscileach having a gripface, a pair of gripping levers pivoted to said oscillatory gripping arms, each gripping lever being provided with a gripping face adapted to cooperate with one of said gripping arms, and an operatingdevice fitted to said gripping levers, said operating device tending to force the gripping faces of said levers backwardly with respect to the movement of the paper so as to grip and at the same time feed the paper.

18. In a typewriting machine, a paper feeding device comprising an oscillatory gripping device, gripping levers pivoted to said oscillatory gripping device, said gripping levers having cam shaped gripping faces adapted to cooperate with said oscillatorygripping device, a driving device fitted to said gripping levers, and means for actuating said driving device to force the cam shaped gripping faces into engagement with the paper, at the same time moving all of said parts to feed the paper.

WARD S. IRELAND.

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