US956257A - Type-writing machine. - Google Patents

Description

F. ALEXANDER.

TYPE WRITING MACHINE.

APPLIUATIOF TILED JUNE 8. 1909.

956,257. Patented Apr. 26, 1910.

l l I ,l if jj( /Z Q l l dal/owned.

PATENT oFFicE.

UNITED STATES FREDERICK ALEXANDER, oENEw Your, N. Y., .assmNoa or ONE- HALF To WILLIAM E. Lasxowsin, Ja., or WEST HoBoKEN, NEW JERSEY.

` TYPE-WRITING MACHINE.

Specification of Letters Patent.`

Patented Apr. 26, 1910. Divided and thisk application filed Juliek 8` 1909. Serial No. 500,885.

To all whom. it may concern:

Be it known that I, Fnnnnnicii ALEXAN- DER, a citizen of the United States, residing at New York city, borough of Brooklyn, county of Kings, State of New York, have invented certain new and useful Improvements in Type-lVI-iting Machines, of which the following is a clear, full, and exact description.

. The object of this invention is to provide a combined paper clip and marginal stop for typewriting machines, whereby the paper clip is shifted every time a marginal stop is moved to regulate the extent of the writing on a sheet of paper. By shifting the paper cli with the marginal stop the paper is kept in contact with the platen more firmly than if the paper is held against the platen at opposite ends.

Other advantages and details of improvenient will hereinafter appear, and the novel features of my invention will be pointed out in the claims, rference bein had to the accompanying drawing, forming part hereof, wherein- Figure 1- is a cross-sectional view ofl a typt-.writing machine frame and carriage slidably mounted thereupon, a part of said view being in elevation; Fig. 2 is a top plan view of the carriage and a portion of the frontl rail of the frame; Fig. 3 is a front end view of-the carriage; and Fig. 4 is van enlarged sectional top plan view of the marginal stop and latch carried thereby, the -section being taken on a line a-a in Fig. V3.

Referring to the drawing, the numeral 1 indicates a frame upon which a carriage 1a is slidably mounted, said lcarria e carrying a. platen 2 around which t e paper passes. The end members of the carriage l" are connected, at the front thereof, by a bar 3, which is provided with an elongated opening 3". The lower rail 3b is rovided with rack teeth 4, and the top rai with a marginal scale 5: to slidably support a marginal stop combined with a paper clip, which I Will now describe.

My improved marginal stop and paper clip comprises a block 6 which has (in thisA instance) integral therewith a bracket. 7. The bracket 7 slidably supports a plate 8,

which is provided with an elongated slot TheI front bar 3 is designed' l gu, through which a binding screw t) passes in order to secure the plate 8 in an adjusted position. The plate 8 vcarries a paper clip 10, which is pivotally secured to the said plate, as at 11. A spring 12, carried bythe clipk 10,. exerts a slight pressure and serves to keep the clip in contact with-the paper on the platen 2. lVhen tlievstop or block- 6 clip 10 ofi' the paper; hence the pivotal connection 11. As can be seen in Fig. l, the block G, has, also, in this instance, integral therewith a box-frame 12a which is adapted to embrace the front bar 3, whereby the block (3 and paper clip are snugly but slidably connected to the said bar 3.

In order to lock the stop 6 and paper-clip l() in an adiustcdvposition along the rack 4, I provide the stop G with a latch 13, having an extension 13"', which isadapted to engage the teeth of the rack 4, the extension 13 being provided with an elongated slot 13a through which a machine screw 14 can pass and engage the block G (see Fig. 4).- A. spring l5 of suificient pressure serves to hold the latch 13 in an engaged or open position., To stop the carria e at any desired point, I provide a movable pin 17 having an upstaiiding end 18 adapted to impiiigc the stop G. The pin 17 is provided vwith a head 19, a spring 20 serving to hold the pin in an operative position.

Should I desire to cause the carriage to travel but a short distance, I pull out the latches 13 until the extensions 13b leave the rack-teeth. I then move the entire stops and clips aloii the bar 3 and lock them by means of the atches 13 and rack 4 in the desired position, indicated by the scale 5. lVhen the carriage moves during the opera- -tion of writing, the extension 18 on the pin 17 will contact the stop 6 on the right in Fig. 2 when the desired extent of travel has beenmade. Vhen the carriage is returned for a new line, the stop on the left of Fig. 2 will Contact the extension 18 of the pin 17. Should I. desire to remove the carriage, the pins 17 can be pulled outwardly against the tension of the spring 20-and held out until either of the stops 6 has passed it. pin 17 is preferably positioned at about the .center of the front rail .17

The stop 6 aiidpapcr clips may be positioiied at any point along the rack 4.

is shifted, i-t might be ynecessary to lift the f The of the frame.

. bracket carried by The above described device is a division of' an application filed b me AMarch 29, 1909, Serial No. 486,421 fbr improvements in tvpewriting machines. A

I aving now described my invention, what I claimand desire to secure by Letters Patent is:

1. In a. typewriting machine, a carriage provided with a platen, a rack adjacent sald platen, marginal stops slidably mounted adacent said rack, releasable means carried y said stops adapted to engage said rack and lock said stops against Amovement, a

each of said sto s, a late carried by each of said brackets a apt for longitudinal adjustment thereupon, and a paper clip pivotally mounted on 4each of said plates adapted to contact with said platen.

2. In a t eiwritin machine, a carria e YE g g platen, marginal stops slidably mounted adjacentl said rack, a releasable latch carried bysaid stops ada ted to engage `said rack and lock said) stops a inst movement, a bracket' carried by'each o said stops, a plate carried by each of said brackets adapted for longitudinal adjustment thereu on, a paper chp pivotally mounted on eacli of said plates adapted to contact with said platen, and a spring carried b each of sald lates adapted `to kee the cllips carried thereby in contact wi ate. y p Signed at 'New York city, N. Y., on this 7th ay of June 1909.

' FREDERICK ALEXANDER.

Witnesses: l 'i WM. F. LAsxowsxI, Jr.,

provided Wit a platen, a rack adjacent sald EDWARD A. JAnvIs.

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