US754454A - Type-writing machine. - Google Patents

Description

N0. 754,454- PATENTED MAR. 15, 1904.

A. R. JARMAN.

TYPE WRITING MAHINE.

APPLICATION FILED FEB. 4, 1903.

No MODEL. 2 SHEBTE-SHBET 1.

Wy; fm l 'No. 754,454. PATENTBD MAR. 15,1904.

- A. R. JARMAN.

TYPE WRITING'MAGHINB.

APPLICATION FILED FEB. I4, 1903.

2 SHEETS-SHEET 2.

N0 MODEL.

" I m: Nonms venin: ou. Puumumo.. wwwa-rou. u, r.,

No. 754,454. .l 'l e Patented March 15, 1904. "l UNITED STATES' PATENT OFFICE.

ALFRED R. JARMAN, OF HAOKENSACK, NEW JERSEY, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO ELLIOTT-FISHER COMPANY, A CORPORA- TION OF DELAWARE. e

.TYPE-WRITING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 754,454, dated March 1904.

Applicationiiled February 4, 1903. Serial No. 141.872.' (No modeL) T0 all ww'm I5 ML/VOOnOI/f Y Referring to the drawings, A represents Be it known that I, ALFRED R. JARMAN, of the flat platen; B, anl overlying base-frame Hackensack, county of Bergen, and State of to support the machine; C, asecondary framev New Jersey, have invented a new and useful mounted to slide forward and backward on 5 Improvement in Type-Writing Machines, of the main frame fB for line-spacing purposes, Awhich" the following is a specification. and D the writing mechanism, arranged to My invention relates to that class of maprint in'a downward direction and mounted *55 chines in which the cards or sheets to be writto move transversely on the frame C. It is ten upon are supported on the surface of a provided with the usual feed devices, con- I0 flat platen beneath a writing mechanism artrolling its movement from left to right, step ranged to feed transversely, step by step, for bystep, as successive letters and spaces apletter and word spacing, and also adapted to pear in the line. 6o be moved longitudinally over the platen from The foregoing parts are all of ordinary contime to time for line-spacing. It is a comstruction and constitute no part of the present I5 mon practice to use this class of machineinvention.

such, for instance, as the Elliott & Hatch The invention has reference to means for machine, shown as to its general organization moving the frame C and the writing mechanin United States Patent No. 620,125--for ism thereon forward step by step that the printing parallel lines or entries on cards or machine may print the successive lines at the 2O sheets having blank forms or lines thereon. required distances apart.

The positions of these lines and the distances In carrying my invention into elfectI secure between them differ, not only on different to the frame B the platen or to any other fixed sheets, Vbut on different parts of the same part of the machine near the right side alonsheet, in such manner that the ordinary linegitudinal toothed bar E. The teeth are for 25 feeding mechanism does not admit of the convenience arranged on the upper surface of machine being speedily adjusted to print the the bar and are beveled or inclined on their lines in the exact positions required. front sides. The distancebetween the flat or The aim of my invention is to enable the rear sides of the teeth corresponds with the operator lto adjust the machine instantly to distances demanded between the successive 30 print in the exact position required on duplilines of print. Ordinarily the distance becate cards or blanks. l tween the successive teeth differs, those at one To this end it consists in the combination end of the bar being frequently farther apart of a feed-dog with a rack or stop bar, which than those at the opposite end. On the frame is arbitrarily constructed or adjusted to meet C, I mount the stop-dog F, lying transversely 35 the requirements of theE particular matter in and having its inner end extended over the hand, the teeth of this bar being spaced either toothed bar E and provided on the under side regularly or irregularly to conform to the with a tooth f. The dogF is slotted longiturequired spaces between the lines. dinally and guided by pins f' on the frame,

Figure l is a top plan view of an Elliott & the parts being so fitted that the dog is per- 40 Hatch machine provided with my improvemitted not only a longitudinal reciprocation, ment.. Figs. 2 and 3 are top plan views of the but also at the inner end a limited vibration line-spacing device with its dog in different lengthwise of the machine. This vibration is positions. Fig. 4 is abottom plan view of the limited by a slot f 10 in the frame, through feed-dog andadjaceut parts. Fig. 5 is a crosswhich the tooth projects, as shown in Fig. 4.

45 section of the machine on the correspond- A spring f2 tends to slide the dog F onward ingly-numbered line of Fig. l. Figs. 6 and to the left, so that its teeth f will stand be- 7 are diagrams illustrating the action of the yond or out of the path of the teeth on bar E. 95 stop-dog as viewed from the top. A second spring f3, secured to the frame, acts on the end of the dogFand tends to push the same forward when it is out of engagement with the teeth. For the purpose of operating the dog and shifting the frame C the lever G is pivoted to the frame at g and provided with a finger engaging a pin on the dog F. The pivotal motion of the lever is limited by pins g, fixed on the frame in position to engage the walls of a recess g5 in the edge of the lever. A spring g connects the lever G with the sliding frame and tends to draw it forward, thereby releasing the dog F, so that it may slide onward and disengage its teeth from the bar E, as shown in Fig. 2. This is the normal position of the parts. Their operation is as follows: The frame C and the writing mechanism are first pushed backward beyond the printing-field and the card or sheet placed in a definite position on the platen, ordinary guides or stops being employed to determine the position. The operator seizes the handle G and pulls the same forward. Owing to the frictional resistance of the frame, the spring g' yields, and the lever turning on its pivot slides the dog F onward, bringing its tooth f into position to engage the first teeth on the bar E. As soon as the dog reaches the end of this movement the lever G becomes rigid in relation to the frame, so that a continued pull thereon serves to slide the frame and writing mechanism forward until the dog F encounters the first teeth at the rear end of the bar E. This serves to arrest the mechanism in position to print the first line in the required position on the card. When the operator releases the lever G, it is turned rearward on its pivot and the dog F moves to the left until its tooth f disengages from the teeth of the bar E, whereupon the end of the dog F is thrown forward by the springf3 until its tooth f stands opposite the beveled end of the next tooth on bar E. After the first line has been printed the lever is again operated. The dog F first slides onward, carrying its tooth to the right between the first andsecond teeth of the bar E, after which the parts move bodily forward until the tooth f engages the rear face of the second tooth on the bar E. This operation is repeated after the printing of each line.

My machine differs from those now in use in that the writing mechanism instead of being fed forward step by step through the action of feed devices, as usual, is mounted freely on the frame, so that the operator may push it forward or backward to any required extent, except as its forward motion is limited or arrested by my improved stop devices. A clear distinction is to be drawn between my stop devices, which serve to .arrest the advance of the Writing mechanism, and the ordinary feed devices, which act to cause the advance of the mechanism.

It will be observed that the dog is merely a stop device; that the lever G is a means for bringing the dog into operative position and for advancing the frame after the dog is thus adjusted. It will be observed that the distance between the teeth on the bar E in no manner affects the operation of the stop device. This permits the teeth to be spaced arbitrarily to conform to the spacing on the card or sheet, whether regular or irregular.

The advantage of my device lies in the fact that a single pull on the lever G enables the operator to bring the printing mechanism to the various positions required, so that the printing of words or lines in definite positions and at irregular intervals may be carried on without loss of time. Then a change in the form of blanks occurs, it is only necessary to remove the bar E and substitute another adapted to the new work.

If desired, the teeth of the barE may be made adjustable, or teeth or pins or stop devices of any suitable form, adjustable independently of each other, may be employed.

I believe myself to be the first to providel a line-spacing mechanism which will without change or adjustment permit the writing mechanism to be advanced step by step unequal distancesl each movement by a single impulse.

It is manifest that the details may be modilied at will, the essential requirements being simply a series of stop-teeth suitably spaced and a dog or stop engaging these teeth automatically to limit the advance of the mechanism.

Having described my invention, what I claim is- 1. In a flat-platen type-writer, printing mechanism mounted to slide freely forward and backward for line-spacing, in combination with a series of stop-teeth and a dog adapted to engage the teeth successively to limit the advance.

2. In a fiat-platen type-writer, the printing mechanism movable for line-spacing, a series of stop-teeth unevenly spaced and a stop-dog adapted to engage the teeth successively, whereby the lines of print may be arbitrarily and unevenly spaced.

3. In a fiat-platen type-writer, the writing .mechanism mounted to slide freely for linespacing, in combination with the lever thereon, the stop-dog actuated by the lever, and the fixed toothed stop-bar.

4. In a fiat-platen type-writer, the freelysliding writing mechanism, in combination with a stop-bar having teeth to arrest the advance of the mechanism, a movable dog on the writing mechanism to engage said teeth, and a lever. or handle serving the twofold purpose of advancing the mechanism and controlling the dog. v

5. In a flat-platen type-writer, its freelysliding frame for line-spacing, thelever thereon, the longitudinally and laterally movable dog controlled by the lever, and fixed stopteeth to engage the dog.

IOO

IOS

6. Inra flat-platen type-writer,` the writing operating therewith to repeatedly arrest the mechanism movable freely forward and backadvance of the Writing mechanism.

ward for. line-spacing, i-n combination with [n testimony whereof I hereunto set my stop-teeth to arrest its advance, a normally hand, this` 22d day of'January, 1903, in the 5 disengaged dog, and iieans for moviig the presence of 'two'attesting witnesses.

writing mechanism an actuatingthe og.

7 In a fiat-platen type-writer. the writing ALFRED R' 'TARMAN mechanism normally free to slide forward and Witnesses:

backward for line-spacing, in combination- CHAS. FLINT, 10 with a series of stop-teeth and a stop-dog co- P. S. HALLECK.

Images