US295074A - Telegraphic transmitter - Google Patents

Description

(No Model.) l l R. C. STONE.

TBLBGRAPHIG TBANSMlTTBR.

Patented Mar. 11,1884. A

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TELEeRAPi-no TRANSMITTER.

sPncrrIcA'rIoN forming para or Letters Parent No. 295,074, aerea March 11, 1884.

Application led September 13,1833. (No model.)

-To will whom it may; concern.-

Be it known that I, Ross C. STONE, a citizen of the 'Uni ted States, residing at New York, in the Vcounty of New York and State oi' New Yorlnhave invented certain newr and useful yImprovements in Ielegraphlnstruments, of

'series of connections which, when liberated by a key denoting any given letter or sign,l would open and close an electrical current,- Which, when utilized in the ordinary manner through a Morse or other telegraph instrument which show a mark or emit a sound, under such circumstances) the letter or mark onthe key referred to would be converted into a corresponding letter or mark characterized by telegraphic marks or signs. Now, in this present application I. propose to describe one form of an instrument embracing a series of these connectors so arranged as to produce all the letters of the alphabet, the numerals, and other characters commonly used in writing, so that by its use any person who is conipetent to manipulate'tlie keys (which maybe like those of an ordinary type-writer) can send a telegraphic message as correctly as an expert operator can do with any instrument nonr in use. Y y

Figure ll Ot' the drawings is a side view, partly in section, ofso much of my device as will illustrate the invention. Fig. 2 is a detail showing how the key may be held down by engaging with the cam, which extends not quite around the spindle.

For the. sake of convenience, Iwill now give the several parts indicated by letters of-refer-y C is-the plate upon which said bar rests. D

is the point of said bar which carries the circuit making and breaking device. E is the metallic collar or projection. F is the insulating material for bar B. G is the pins in the collar E. II is the point of contact for said pins to close circuit. I is the bar for dashes used in lieu of pins G. .l is the electric Wire leading to plate C; Ii, the transmitting-wire from contact-point IVI. L is the friction-wheel on spindle A; M, the main friction-Wheel which drives all the spindles. This driver may have aseries of drivin g-disks at different elevations, or may be large enough so that all the letters are arranged round it in one plane. N l are the top bearings or guides for spindles A. O O is the spring or springs for drawing said bearings away from Wheel M. P or P is operating key or keys. Q, is the toggle-lever for' moving bearings N toward Wheel M. VQis the spring which may be used instead of toggle-lever. .R and Il are key-rods. spring or springs for raising keys. T or T is face-cani on friction-Wheels Il or L. U is the lugon friction-wheel L. V is the tappet for said lug. lV is the frame of the machine. X is the shaft for frictionavheel lll. Y is the insulator in frame for plate C. Z is the driving-gear for frictionwlieel, which is revolved by clock-Work orby any other suitable means.

In my dra-wings, when taken as a Whole, A. represents an insulated revolving bar or spindie, the center being provided with a metallic electrified rod, B, which rests and revolves upon a metallic plate, C, thus forming a step at I), as shown, and hereinafter referred to. The bar or rod B receives its electric current through the plate C, upon which it rests, and at or about the middle it is provided with a metallic collar or projection, E, which protrudes past the insulating material F. The said collar is provided upon its facewith holes for the reception of pins G, or other devices designed to be brought in contact with plate or point H as the colla-r is revolved, and by this means electricity is passed to the plate or points TI at proper intervals of time to corre spond with the interval of space between the points in the collar. These points are designed thus to create, t-hrongh the means provided, a dot7 and to forma dash by making and breaking the electric circuit. I unite two or S S are IOO 2 zamora more of the said pins with a bar, I; or, in other words, I provide the collar with a bar by any suitable connection, so that its face shall remain in connection or contact with the plate or point H for a sufficient length of time to produce the desired effect when vthe collar is revolvedthat is, to form a telegraphic letter, number, or any desired sign when the collar makes one revolution-and as the various letters and signs do not require the same time for their transmission, the usefulness of my invention will be observed when I proceed tol describe the .provision I have made for the requirements of the case-as, for instance, the ordinary telegraphic A is composed of one dot and one dash,7 while the B is composed of one dash and three dot-s,77 so the E is one dot, -while P is composed of five dots,77 hence without any loss of time the bar A or its collar, designed to indicate the letter E, should revolvefive times as fast as that which is designed to make the letter P. v

Referring again to my drawings, the spindle A, it will be seen, 'is provided with a friction-wheel, L, which is brought in contact with another friction-wheel, M, by pressure on key P. The said wheel M is designed to rotate at a required velocity to revolve wheel L at the required speed,when brought in contact therewith, to form a telegrapliic letter, as describedthat is, by or through the medium of the collar E, pins G or bars I, and points H.

The main friction-wheel is surrounded by the Y bars A, each provided with a friction-wheel which represent-s the device so far as this application is concerned, in which A is the spindle, constructed as above described, which is supported by plate C, upon which it revolves, and upon which it also oscillates in direction of the arrows s' s-that is, when forced to do so by means hereinafter set forth. The top of barA is held in the .desired position by a reciprocating guide or bearing, N, which is urged in the direction of arrows t by the spring O, the tension of which, however, is overcome by pressure upon the key P, which is communicated to the guide N through the toggle- 6o joint lever Q andv rod R, which is guided as shown, and forced in an upward direction by the spring S. The toggle-joint is joined at one end to a rm base, while the other end unites with N, and the center bya hook, which takes hold of a pin, as shown, wherefrom, A

however, it is disconnected .by a cam, T, lo-

cated on the friction-wheel L, by vcoming in contact therewith when the said L makes a complete revolution. AThis permits the spring O to draw the guide N in the direction described when stopping the rotation of Auntil the key P is again pressed, and to insure greater accuracy I provide in the frame atappet, V, which unites with a lug on L or some convenient part of A, and being kept there in place, as shown, so that no motion of A is permitted unless the key is pressed, 'and then the motion ceases with one revolution thereof, as the escapenient described permits the wheel L to liy back to where the said lug and tappet come in contact; and as this is one of the most important features of my invention I wish here to state that I am aware that the togglejoint can be substituted by many other devices to operate in connection with the revolving bar A. In fact, an electro magnet or magnets may be made to take its place, but the escapement is inevitable, and the escapement must be produced in some way by the rotation of the bar A itself.

I have shown on the opposite side of thefinstrument, in connection with the guide N, a

- set forth in my said application C.

I am also aware that the revolving bar may be substituted by an oscillating device 5 and I have prepared another application for a patent therefor, the same being marked Gase D -5 7 but in all these cases the escapement of the connector referred to is preferably obtained from its own motion.

I am aware that a device has been heretofore described and patented, in which a series of oscillating rings, with a driving-shaft passing through them, were provided with contact-points, it being intended to oscillate one of the rings to transmit asignal when the ring was brought into contact with the driver. Such a device I do not claim.

Therefore in this application,what I claim,

and desire to secure by Letters Patent of the United States, is-

l. The method of transmitting electric impulses, which consists i n driving the contact or contacts of a series which makes the impulses constituting one letter or character at a given rate of movement, and the part of the same series which makes the impulses constituting another letter or character at a different rate of movement, substantially as set forth.

2. A series of spindles adapted to open and IOO The manner close an electric circuit by'their movement, substantially as described, and mechanism to move various spindles of the series at different rates of speed, in combination, substantially as described.

3. scribed, a series of vertical spindles arranged 'outside theidriver, adapted, as described, to

. tially as described, and a series of frictiondrivers, as L, one on each spindle, the sameV being'. of variousV sizes, so that the spindles may be speeded differently, as set forth.

5. A friction-driver,a series of vertical spindies adapted to transmit electrical impulses, as described, and a series of keys adapted by suitable connections to throw the spindles into contact with the driver, allin combination,

substantially as stated.

6. A friction-driver, a series of vertical spindles adapted to transmit electrical impulses, substantially as described, movable bearings supporting one end of said spindles, and aseries of keys adapted to move saidbbearings, so that the spindles may be driven bythe driver, all in combination, substantially as stated.

n friction-driver 0f the character (1e-- 7. A friction-driver, a vertical spindle adapted to transmit electrical impulses constituting 3 a telegraphic character, mechanism for throwing said spindle into position to be operated by said driver, and mechanism for retaining the spindle in contact with the driver, so that the spindle shall makea complete revolution, and stop at the close of the revolution, in combination, as set forth.

S. The combination of a friction-driver, a series of spindles adapted to transmit electrical impulses, as described, sliding bearings 4 for said spindles, keys for moving said bearings, and an escapement or stop which throws the friction devices out of contact when the spindle has made a complete revolution, as set forth.

9. The combination of a friction-driver, a series of insulated spindles for transmitting` electrical impulses, as described, sliding boxes for throwing` the spindles into contact with the driver, toggle-levers for actuating said sliding 5 boxes, and keys for operating the toggle-levers, as set forth.

In testimony whereof I affix my signature in presence of two Witnesses. Y

ROSS C. llGNE.l v

Witnesses:

S. H.WALKER, Ronr. M. FRYER.

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