US443957A - Type-writing machine - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

G. L. DEPUY.

TYPE WRITING MACHINE.

No. 443,957. Patented Dec. 30,1890.

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WITNESS/5S:

ATTORNEYS 2 Sheets-Sheet 2.

(N0 MOdel.)

G. L. DEPUY. TYPE WRITING MACHINE.

No. 443,957. Patented Dec. 30,1890.

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GILBERT LADEPUY, OF GARLAND, TEXAS.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 443.957, dated December 30, 1890.

Application filed June 18,1890. Serial No. 355,912. (No model.)

To all whom t may concern.-

Be it known that I, GILBERT L. DEPUY, of Garland, in the county of Dallas and State of` Texas, have invented a new and useful Improvement in 'lype-friting Machines, of which the following is a specification.

My invention relates generally to typewriters, and particularly to that class thereof in which the printing apparatus is moved across a page or other iiat sheet to be printed and on which the machine rests.

The object of my invention is to provide a machine of the character described that shall consist of very few parts, which are simple, easily constructed and assembled, and one that can be easily and quickly manipulated with either one or two hands or the butt-end of a pencil or other similar instrument. Most machines of this character as heretofore constructed have been quite large and inconvenient appliances and easily broken. My machine, however, is very small and may be carried in the vest-pocket and used to perform all operations ordinarily performed ,with a pencil or pen and is not likely to get out of order.

The invention consists of a stationary horizontal threaded shaft secured in a light frame, a carriage pivoted upon said shaft carrying a key-board, and the inking attachment and mechanism adapted to move the carriage longitudinally along said shaft as the writing progresses or the carriage is returned.

` The invention consists, further, in certain details of construction and novel combination of parts, such as shown in the accompanying drawings and hereinafter referred to.

In the drawings forming a part of this specification, Figure 1 is a front view of my improved type-writer properly arranged upon a sheet and ready for use. Fig. 2 is a transverse vertical section taken through the center of the carriage. Fig. 3 1s a vertical longitudinal view of the carriage. F1g. 4 1s a central vertical section of the arched frame, showing the relative position of the inkingpads and type-shafts. Flg. o 1s a detail view of the inking-pad, and Fig. 6 is a detail view of the feeding mechanism.

In carrying out my invention I employ a carriage A, adapted to carry the printing mechanism A horizontally across the sheet to be printed upon, said carriage consisting of an arched frame B, supporting the keys a, typebars a', and in k-pads D, and a sleeve C, rigidly connected to the arched frame, said sleeve sliding on a horizontal feed-shaft E and forming a pivotal connection for the frame on said shaft, whereby the carriage is capable of a vibrating motion backward and forward upon the shaft which operates the feed mechanism and moves the carriage across the sheet, as will be explained farther on.

The arched frame B is constructed of two thin plates b and Z2', each curved in the arc of a circle, the plate b being arranged concentrically within the plate Z9, the vadjacent ends of the two plates being united by means of the iiat connecting-plates b2. The connecting-plates b2 may be integral 'with either of the curved platesb or b or it may be separate from both. The outer or upper plate b is provided with any desired number of perforations b3, preferably arranged in three parallel rows, as shown, and the inner or under plate b is also provided with a similar number of perforations b3, arranged in a manner similar to that of the outer plate o. Working in the perforations b3 in both plates are the type-bars a', which carry the type characters a2 upon their lower ends and the keys a upon their upper ends, the keys a being of greater diameter than the type bars, and around said bars, between the keys a. and outer plate b, are arranged the spiral springs a3, which raise the type to their normal or elevated position when the pressure upon the key is released.

The relative positions of the perforations b3 are such that every type when depressed will strike a common central point, and to present a flat type-surface to the sheet the faces ofthe type arranged near the ends of the-platesl are beveled, as shown in Fig. 3.

The keys a' are provided with caps, upon which are arranged the character'of the type carried by the bars.

It is preferred to construct the type-bars a of two parallel rods united at their upper and lower ends, respectively, by means of the keys and type, and the perforations b3 are so con structed that they conform to the shape of the IOO bars, and the rods iit snugly therein, thus always insuring` a perfect alignment of the type.

The inking attachment D consists of two inking-pads d, secured to the upper faces of spring-metal plates d', the said spring-plates being secured at their outer ends to the connecting-plates b2 by means of the springclasps d2, sprung upon the connecting-plates b2 at their rear sides.

The ink-pads are arranged in line with the common central point and extend inwardly to said point, and when one pad is depressed by a key there is space enough between the opposing ends of the pads for one type only, and by this construction it is impossible to make two impressions atthe same time. The pads are of sufficient width to be touched by every type as it is depressed, and in printing the types press the pads downward and move down the incline to the paper, and when the pressure is released from the key and the type elevated the spring-plates d', to which the pads are attached, will throw the pads to their normal or elevated position. The ink-pads 'can be quickly detached and replaced to change the color of ink or for any other purpose.

C indicates a sleeve rigidly connected at its ends to the lower ends of the inner or under curved plate b', and through said sleeve is passed a horizontal threaded shaft E, said shaft being supported in the frame F, which frame consists of the base or resting platef, the end plate or standardf, to which one end of the shaft is rigidly attached, and the opposite end platefz, having aperforation adapted to receive the reduced end of the shaft E. The end plate f is of spring material to permit it to be sprung out of engagement with the end of shaft to allow the carriage to be removed from and placed upon the shaft when desired. A longitudinal guiding rib F is formed upon the upper face of the rest-plate f, said rib serving to guide the carriage as it moves across the paper and limits its vibratory movements in the Operation of the inachine. The sleeve is provided on its rear side with a depending spring-finger' G, adapted to bea-r upon the rear side of the rib F and throw the frame forward, when it is swung backward and downward, and upon the forward side of the sleeve is formed the depending stop G', which limits'the forward motion of the fra-me.

The arched frame B is arranged upon the rear side of the horizontal shaft E, and to the left of the sleeve O and bearing against it is a'collar H, said collar turning loosely on the shaft and working in a notch h, formed in the forward side of the left-hand connectingplate b2.

One coil of spiral spring I is placed in the thread of the shaft E to the left of the collar H, said collar and spring bei-ng rigidly connected, the free end of the spring-coil being turned out of the groove to provide a handgrip, by means of which the coil can be lifted out of the thread or groove when desired.

The periphery of the collar H is formed with a suitable number of ratchet-teeth, and secured to the forward edge of the upper curved plate b is a spring-pawl K, which projects downward and engages the ratchet-teeth upon the collar H.

L indicates a handle-frame, essentially rectangular in shape, pivoted at its ends to the standards f and f', as shown, the hand-frame being adapted to be turned down upon the sheet and hold the machine in place by hand or other pressure placed upon the handleframe.

Then it is desired to pack or carry the machine, the frame L is folded back upon the shaft E, occupying little or no additlonal space. The su pporting-frame of the machine and arched frame of the carriage are coustructed of very thin material, which renders the device very light, and the size of the machine is such that it is adapted for vestpocket use. The shaft is so threaded that by giving the spiral coil a definite amount of revolution determined by the number 0f ratchet-teeth upon the collar the carriage is moved to the right the distance of one letter.

The inking-pads are easily detachable, and also the entire carriage.

j The practical operation of my machine is as follows: The machine is arranged upon the sheets to be printed, and heldthere either by hand or other pressure upon the ha-ndframe L. The carriage A is moved to the lefthand end of the shaft E by lifting 'the coil out of the thread and sliding the coil, Vattached collar, and carriage along the sh-aftto the left. The carriage is supported at an angle to the sheet by means of the spring-linger G, bearing against the rear side of rib F. 'The machine is now ready for writing, and when the keys are depressed in passing to the common central point they bear upon the inkingpads d, pressing the same down, and the type move, down the incline of the -pad to the paper. The peculiar construction of the typebars and the perforationsfin the plates insure a perfect alignment, andfthe space between the opposing ends of the inking-pads when one is depressed will permit but one type at a time to reach the paper. A perfect impression of every type is insured by beveling the faces of the type arranged at van oblique angle to the paper. In depressing the keys the coil-springs around the bars are contracted and the carriage is moved backward and downward, the sleeve C turning on the shaft E. As the carriage is swung backward the pawl K moves rearward over one tooth of the collar H, the coil-spring in the thread of shaft E binding sufficiently tight to hold said collar in place. The carriage in moving downward presses the springfinger G forcibly against the-rib F, and the moment the pressure upon the carnage is released said spring-tinger in recovering 'its normal position throws the carriage upward and forward, the movement of the carriage 'being limited by the stop G engaging the forward side of the rib F. The pawl K is moved with the carriage and moves the collar H forward the specified number of teeth, thereby moving the spiral coil, which acts as a nut, and moves the carriage to the right the distance of one letter. As the carriage springs forward the ink-pads are returned to their normal positions by the springs to which they are attached. The writing operation is thus continued until the end of the shaft is reached, when the upt-urned end of the spring-coil is grasped, lifting the said coil outof the thread, and the carriage isslid back to the left of the machine, the machine moved down the distance of one line, and the operations repeated.

Spacing is accomplished by simply throwing the carriage to the rear, and when forced forwardly the said carriage is moved one space to the right. By this mechanism spacing keys or bars are dispensed with.

Having thus described the construction, operation, and advantages of my machine, what I claim is* 1. In a type-writer, the combination, with the curved plates arranged and perforated, as described, of the type-bars consisting of a plurality of parallel rods united at the top and bottom by the keys and type, respectively, substantially as shown and described.v

2. In a type-writer, the combination, with the upper and lower plates and connectingplates, of the type-bars consisting of a plurality of parallel bars united by the keys and type and passing through the plates,the said plates being perforated to conform to the shape of the type-bars, substantially as shown and described.

3. In a type-writer, the combination, with the arched frame and type-bars arranged to slide thereon, of the spring inking-pads detachably secured to said frame and adapted to be depressed by the type, substantially as shown and described.

at. In a type-writing machine, the combination, with a'supporting-frame carrying a guiding-rib, of a threaded shaft arranged in said frame, and a-'earriage adapted to move upon the threaded shaft and provided with stops adapted to engage the rib on the frame and guide the carriage, substantially as shown and described.

5. In a type-writing machine, the combination, with a threaded shaft, of acarriage moving thereon, a ratchet-faced collar bearing against one end of said carriage and adapted to be operated by the movements of said carriage, and a coil of spring metal secured at one end to the ratchet-collar and normally resting in the thread of the shaft, substantially as and for the purpose described.

6. In a type-Writing machine, the combination, with a supporting-frame, of a handleframe pivotally attached thereto near the bottom of the same, adapted to be turned down and rest upon the sheet, whereby the machine may be held in place, substantially as shown land described.

7. In a type-writing machine, the combination, with the upper and lower arched plates and the dat connecting-plates, of the typebarsv carried by the curved plates, and the inking-pads connected by spring-clasps to the dat connecting-plates, substantially as and for the purpose described.

tion, with a spring-metal plate, of an inkingpad secured upon its upper face, and springclasps connected to the outer end of said plate, substantially as and for the purpose set forth.

9. In a type-writing machine, the combination, with the arched frame, of a sleeve rigidly connected thereto, and also a pawl, a threaded shaft passing through said sleeve, a ratchet-collar adjacent to the sleeve and engaging a notch in the arched frame and the pawl attached thereto, and a spiral coil-sprin g connected at one end to the collar and resting in the thread -of shaft, substantially as shown and described.

l0. In atype-writing machine, the combination, with a threaded shaft, of a carriage moving on said shaft, a ratchet-collar adapted to be operated by the carriage, and a spiral coilspring connected at one end to said ratchetcollar and resting in the thread of the shaft, the free end'being turned outwardly to afford a hand-grip, substantially as shown and described.

- GILBERT L. DEPUY.

Witnesses:

T. J. SEVINE, T. F. NASH.

' 75 8. In a type-writing machine, the combina-

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