US833360A - Feeding mechanism for type-writers. - Google Patents

Description

No. 833,360. ,'PATENT'ED' OCT; 16', 190e. L. E. WLKBs. PBEMNG MEGHANISM EUR TYPE WRITERS.

APPLICATION FILED AUGJS, 1905.'I

Streuung;

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PBEDING MBGHANISM ma TYPHWRITE APPLICATION PLED AUG. 3, 1905.

2 SHEETS-SHEET 2.

Wbb/mama Q'. w] .m/ Y

- is'm for Type-Writers; and l do declare the rshown and described a top plan-view ci the machine,

`which is supported lonl Y vWriting mechanism Writing mechanism .upon by thewritm s PATENT Nonetot:.,

UNITED sfngrn LINCOLN n. y 'Witiins,` or HiLLse ono, oneens;

' ne.ese,ec. A

Application mea Augier, 1905. sei-e1 No. tiene;

Toa/J, whom, III; may concern: vor they Ina be adjustably secured thereto 'Be it known that l, LINCOLN E. WILKES, a in any suita le manner.. i citizen ofthe United States, residing at Hillsl Midway between the ends of the side bars boro, in the county oi Washington and State l 2 and journaled therein is a horizontallyedisci Oregon, have invented certain newl and posed shaft 5, on the opposite ends oi which useful Improvements in Feeding Meohanis iixedly mounted spur gear inions 6,.

These pinions are adapted to mesii with the teeth of the rack-bars 3, whereby when said l'shaft is turned the rectan lar frame formed l by said rack-bars and tie cross-bars 4 is moved along the side bars 2 of the machine. Immediately above the shaft 5 and. supported at its opposite ends by the side bars 2 is a strip oi platen 7, on which the leaves ci the book are adaptedto be drawn end upon which the type-heads 8 of type-bars 9 are adapted to strike, thus forming the impression ci the type on said head upon the leaf of the book.

The inner sides of the cross-bars 4 of the rack-bar Jrame are provided with suitable clamps 10, which areadapted to be engaged with the 'edge of the book-leaf to be printed, and whereby said leaf is drawn overl thestrip of platen When said frame isy moved across the machine. in order stretched taut and evenly held in'position oh the strip ciplaten, a tension device is provided, said 'tension device being here shown as a roller 1 2,whi ch is adapted to be arranfred in the fold of the leaf, as shown. The roller 12 is provided adjacent to its oppositeends with annular grooves 13, with `vwhich are adapted to be engaged hooks 14, said hooks being connected to the ends ci tension-.cords 15, which are adapted to be 'Wound at their opposite ends upon tensioni-drums 1d These drums are providedwith, spiral springs 17, the tension of Which isexerted to revolve the drums in a direction towind up the-cords 15. By' this arrangement the book-leai Will be evenly stretched across the vplaten-bar whilel being drawn over the latter by the movement oi therack-bar' frame, as hereinbeiore described. The hooks 14, cords 15, and-tensien-drums 16 are provided on each side of thel machine, so that the roller' may be applied at either side oi the platen-bar, thus providing for the -movementof theiram'e in ioth directions to both` sides ci the leaf. When the rackfbar frame has been moved and the leaf ci" theiollowing to be a iull, clear, and exact description 'of' the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to feeding mechanism Jfor type-writers.v The obJect of the invention is to improve the construction of the feeding mechanism in Letters Patent ci the United States No. 575,190, granted to me January 12, 1897. v

With the above and other objects in view the invention consists of certain novel icatures oiconstruction, combination, and arrangement of parts, as will be hereinafterdescribed and claimed. ,e

in the accompanying drawings, Figure 1 is showing the Writing ymechanism left oil` and a book in position tobe written on. Fig. 2 is a iront View. Fig.` 3 is a central longitudinal vertical sectional view of the same. Fig. 4, isa similar view showing a modified construction of feeding mechanism for the tensionroller. 1

Referring more Yparticularly to the drawings, 1 denotes a stationary base-plate, above itudinally-disposed side bars 2, upon whic are mounted the of the machine, said being the same as shown and described in the patent hereinbeiore referred to. On the base-plate 1 is adapted to be placed a book to be written on. l

Slidably mounted on the upper edges -of the plates or side bars 2 is a feedingmechanism; by W -ich the leaves of the book are brought to its proper position to be written mechanism before reierred to. `The Jfee ing mechanism consists oi a rectangular frame formed by parallel horizontally-disposed rack-bars, 3, which are connected at "their 4opposite ends by crossvbars 4. The cross-bars 4 maybe rigidly secured to the ends of the-rack-bars, as shown,

l l s l that the leaf may be IOO 1facilitate the printing oi hooks 14.0n the opposite si shaft 5, one end ofsaid book drawn over the platen-strip far enough to engage the' roller 12 with either side of said strip, the end of the line Will b'ecom leted, at which time .the mechanism is shifted to bring the parts in proper position for Writing the next line.l

When the 'hooks 14 are en aged with the roller 12 on one side of the (platen-stri the e strip are engaged with the adjacent end bars 4 of the rack-bar frame, the tension of springs controlling said latter hooks being exerted to move the frame toward this end of the machine, thus aiding in moving the leaf or sheet over the laten against the pull of the roller 12.

In ad ition to the above means for moving the rack-bar frame I may employ an onerating mechanism similar to that shown inthe patent hereinbefore referred to-that is, to mount a spiral spring 5 upon one lend of the sprin being secured to the shaft and the other to t e' frame ofthe machine. Above the upper edge of and spaced from the bars 2 is arranged a uidestrip, between which and the upper e ge of the bars 2 the cross-bars 4 of the rack-bar frame are adapted to project, thereby guiding said frame, which will be moved in one direction by the unwindin of the spring, causing the rotation of the s aft5 and ears 6, which mesh with4 the rack-bars 3 o the frame. The rack-bar frame is manually moved in the opposite direction and restored toi its former position, vthis movement of the frame also winding up the spring 5 as will be understood. I

The rack-bar 3 on one side of the frame will be provided on its upper side with a series of ratchet-teeth 3'., .which correspond with the teeth 50 on the rack-bar 42 of the patent referred to herein,- and with the ratchetteeth 3 and the rack-bar 3-'will ,be connected a controlling mechanism .for the rack-bar frame, the construction of which will be the same as that shown in said patent, and an illustration and description thereof is not deemed necessary the present instance. 'While .I have shown andA described the lroller 12 as being held in positiony byten- `loyed for sion-cords, other means ma f be ein esire to imit mythis purpose, and' I do not self in this particular.

In order that the side'bars 2 of the machine maybe raised. and lowered to permit various sizes of books to be inserted beneath the feeding and printing bars are supported upon vertically-disposed shafts20. Said shafts 4are provided upper ends with reduced journals which bear in sockets formed in the under side of said bars. llhe'shafts 20 reject loosely through apertures formed. in tlie base-plated and are provided with screw-threads upon which are lscrewed pinion-nuts `21, said nuts being swivshafts 'will of the p atensimultaneously turned,

pression-strip by lthereby move said frame and the leaf or mechanism, said at their were eled in the late 1 in any whereby W :en the same are turned the be screwed upward-ly or downwardly, thus raisin or lowering the supporting-bars 2. '1n or ervthat the shafts 20 will be moved simultaneously to uniformly raise the side bars, a sprocket-chain 22 is passed around the teeth on said pinion-nuts, Whereby when the chain is moved said nuts will be supporting-plates'are moved together and to the same level.

Having thus described rny ihvention,-What I claim as new, and desireto secure by Letters Patent, is-'` 1. lAvtype-writing-inaclfiine feeding mechanism, having a book-support, a feeding element movable Aover, the booksupport, a platen support over said book support, means to' attach the leaf of a book on said sup ort to said feedin element, and means to eepfsaid leaf un leaf is moving over the platen, substantially as described. y e ,f v 2. A feeding mechanism for type-writing machinesI comprising a base, supportingbars arranged on said so thatv both of saidbase, an impressionsuitable manner, A

l er tension while said strip secured to said supporting-bars, a rackbar frame slidably mounted on said bars, a

revolubly-mounted drive-shaft, gear-pinions' fixed on said shaft to engage and shift said rack-bar frame, means to attach the leafor sheet to be writtten on with the ends of said frame, and a tension device to hold said'leaf or sheet taut while being drawn over said im- ,l

described.

3.' A feeding mechanism fer type-meng machines comprisin a base, supportingars arranged, on said base, an impressions rip secured tosaid supporting-bars, a 4rackbai' frame slidably mounted on said bars, a revolubly-mounted drive-shaft, gear-pinions fixed on said shaft to engage and-shift said rack-bar frame, means to attach the leaf or sheet to be written on with the frame, means to operate said drive-shaft' and said sheet or leaf taut, and means to control` said tension-roller, substantially sts-described.

4. A feeding mechanism machines comprising a base,

over the platen-strip, a tension-roller to supporting-bars said frame, substantially asA ends of said IOS- IIO

for type-Writing arranged on said` base, -an impression-strip se-,.'

cured to said supportingars, frame slidably mounted on said bars, a revolubly-mounted drive-shaft, earinionsiixed on said shaft to engage anc shi t said raclg bar frame,l means to attach 'the leaf or sheet to be written on with the end-s of said frame, means to operate said drive-'shaft and theresaid platen-strip and below the writi mecha lrack-bai' Iig;- by move said'frame and the leaf'orpageover,I4 r' gege seid leaf of sheet, revolubly-mounted in testimony' fvyheeof I have hereunto set V spuug Windin -d1ums, tenslon-cords loosely my hand in presence of two subscribing xo connected et one end to the ends of seid tenlnesses. sion-miler and at their opposite ends to seid L 'NCOLN E WILKES' Windngdrums whereby sadel or sheet.

will be held taut whie being moved over the Witnesses.

l v psten by said rack-bar frame, subsantially 'D. L, HALEY,

es desorbed. 1 T. HOGAN.

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