US448255A - Type-writing machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.,

O. A. PENNINGTON.

TYPE WRITING MACHINE Patented Mar 1'7, 1891.

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(No Model.) 2 Sheets-Sheet 2.

(J. A. PENNINGTON. TYPE WRITING MAGHINE.

No. 448,255. Patented Mar. 17, 1391. 75

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CHARLES A. PENNINGTON,

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OF OHAMPAIGN, ILLINOIS.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 448,255, dated March 1'7, 1891.

Application filed February 13, 1889- fs'erial No. 299,752. (No model.)

T0 at whom it may concern.-

BeltknOWnthatI,CHARLESA.PENNINGTON, of Ghampaign, in the county of Ohampaign and State of Illinois, have invented certain new and useful Improvements in Typeriting Machines; and I do hereby declare the following to be a full, 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.

My invention relates to an improve-mentin attachments for type-writers.

The object is to provide an attachment applicable to type-writers which will insure an accurate alignment of theletters or characters in the line and prevent allwabbling or irregularities in the striking of the paper incident to the use of these machines, especially when their parts become more or less worn and the striking of the keys, unless attended with great care and precision, tends to make an irregular line, andin consequence an unsightly piece of work; and a still further object attained is that a variable stroke of type-bars may be had without materially affecting the perfect alignment.

With these ends in view my invention consists in certain features of construction and combination of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional view of a portion of a Remington type-writer with my invention applied thereranged in a circle or oblong, project downward variations are common to several well-known forms of type-writers; but the novelty of my invention consists in the following: Afunnelshaped centeringcone g is supported on the top of the frame, with its larger end extending flush with the opening in the frame, so that one continuous incline is formed up the inside wall of the centering-cone. In Fig. 4; the funnel-shaped cone is shown fluted and of polygonal form, the essential ele in ent being that the sides are inclined, so as to guide the type upward until forced through the 0pening h in the apex. The openings it may also be varied in form, as shown in Fig. 5, one being round, another oval, and still another square, they in each instance being such shape as to receive and guide the type-bars and hold them in position.

The type are carried in the following manner: The long arm of each lever (1 extends beneath the cone when elevated to ahorizontal or approximately horizontal position, and to the ends of these arms the type-bars 7 are pivoted, said bars being long enough to force the type through the opening 77. in the apex of the cone to a greater or less extent without materially altering the alignment. Some contractile device-such as aspiral spring Z or an elastic band m-may extend from each lever (Z to its type-bar i, and by the action of these devices the ends of the type-bars are held lightly against the centering-cone, and consequently the type-bars are always within the cone and normally just within the large end of the latter. The spring may be dispensed with altogether by turning the cone the other way and permitting the type to strike down against the paper. The continuous riding of the bars up and down against the wall of the centering-cone has a tendency to wear the surfaces coming in contact with each other, and in order that none of this should be upon the type the end of each type-bar is enlarged where it receives the type 19 to'form a pair of oppositely-projecting fins g, which serve as guards for the type and furnish a bearing-surface for the bars.

The modification shown in Fig. 2 is but slightly varied from the main construction shown in Fig. 1, and the difference consists in placing the centering-cone on-an upper frame 1' instead of upon the frame proper, and supporting this upper frame on suitable posts 8,

which project upwardly from the circular frame A. Another slight change consists in flanging the larger end of the centering-cone and securing this flange to the lower side of the upper frame by rivets orsimilar means, in: stead of securing it to the upper side of the frame A, as shown in Fig. 1. To be sure other slight changes are necessary to correspond with the features described and principal among these is the change in length of the type-bars and type-operating levers, and in the contractile springs extending from the type-bars to the lugs c 011 the circular frame instead of to the levers cl.

'In Fig. 6 the ends of the type-bars are shown as enlarged and cylindrical in form. This does away with the use of the fins.

It is evident that other slight changes might be resorted to in the form and arrangement of the several parts described without departing from the spirit and scope of my invention. Hence I do not Wish to limit myself to the particular constructions herein set forth; but,

I Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a frame, levers pivoted thereto and connected at their outer ends to the key-levers, and typebars loosely mounted on the pivoted levers, of acentering device having a funnel-shaped inner face, against which the type-bars bear and by which they are maintained in approximately vertical position and guided.

2. The combination, with a frame, key-1evers, levers pivoted to the frame and connected at their outer ends to the key-levers, and type-bars loosely mounted on the pivoted levers, of a centering device having afunnelshaped inner surface, against which the typebars bear and by which they are maintained in approximately vertical position and guided, substantially as set forth.

3. The combination, with aframe and a centering device having a funnel-shaped inner surface, of type-operating levers, type-bars pivoted thereto, and contractile devices connected with the type-bars for holding the free ends thereof in contact with the inner surface of the centering device, substantially as set forth.

4. The combination, with a frame and a centering device having a funnel-shaped inner surface, of type-bars, each having a fin which rests in contact with the inner surface of the centering device and springs for yieldingly holding the type-bars against the centering device, substantially as set forth.

5. The combination with a frame and centering device, of type-bars maintained in approximately vertical position by the centering device, type, type-operating levers, contractile devices, key-levers, and pitmen, all connected and arranged substantially as described.

0. In a type-writer, the combination, with a funnel-shaped centering device, of keys located under and adjacent to the larger end of the centering device, type-bars, the free ends of which normally rest against the inner surface of the centering device near the larger end thereof, and contractile devices for holding the type-bars against said inner surface while moving toward the upper c011- tracted end of said centering device, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

CHARLES A. PENNINGTON.

Vitnesses:

A. P. TERWILLIGER, H. J. PEPPER.

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