US168919A - Improvement in printing-telegraphs - Google Patents

Description

3 Sheets--Sheet1.

G. M. PHELPS. Printing-Telegraph.

Patented Oct.l9,1875.

N.FErERs, PHOTCLUTMOGRAPHER. WASHINGTON, D. c.

- 3Sheets--Sheet2i G. M. PHELPS. Printing-Telegraph.

Patented Oct. 19,1875.

UNITED STATES PATENT OFFICE GEORGE M. PHELPS, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN PRINTING-TELEGRAPHS.

Specification forming part of Letters Patent No. 168.9 I9, dated October 19, 1875 application iiled March 25, 1875.

, To all whom it may concern: y

Be it known that I, GEORGE M'. PHELPs,of

` Brooklyn, in the county of Kings and State of New York, have invented an Improvement in Printing-Telegraphs, of which the following is a specication:

In Letters Patent No. 89,887, granted to me, a printing-telegraph instrument is represented, in which the type-wheel is revolved in Vunison with the transmitting' portion of the instrument at the other end of the line, and. the printing is effected during a pause that is equal to one quarter-revolution ot' the type-wheel.

The speed of transmission by this instrument is limited by the skill ofthe operator in the message.

My present invention conslsts of a machine for punching holes in a strip of paper at the intervals required for producing electrical pulsationsvcorresponding to those that would occur if sent by the linger-key transmitting-instrument, so that the proper letters of the revolving type-wheel at the receiving-station will be printed, the strip of paper being run by the transmitter synchronously with the receiving-instrument.

I have invented a machine that perforates correctly the strip of paper, and at the same time prints upon the strip the letter or sign corresponding with the perforation. By this improvement the operator learns that lthe message is correctly composed, and a record is kept of the message, and the sending-operatorhas only to run the perforated strip through a machine similar to that used in an automatic chemical telegraph, but revolving synchronously with the type-wheel at the receivingstation, so that the message is transmitted by` pulsations through the perforated paper, which pulsations control the detent and printing mechanism at the receiving-station.

1n the drawing, Figure lis a plan of the machine. Fig. 2 is an inverted plan of. the iinger-board and connecting-levers to the stops.

Fig. 3 is a sectional elevation, and Fig. 4 is the base-plate c, and this shaft -is provided with a pulley, d, to which a continuous revolving motion is applied from competent power; and d is a friction, that allows the vpulley to v continue to revolve when the shaft is stopped.

Upon this shaft c is an arm, 6, permanently attached, and around the base-plate c there is 'a circular range of vertical pins, t', corresponding in number to the keys fot' the key-board, and to the divisions of the type-wheel; and these keys are connected to therespective 'pins 'by the system of converging levers g, (seen in the inverted plan, Fig. 2,) and the letters upon the keys and their respective pins are so arranged that when a key is depressed and its corresponding pin t' raised, the shaft a will be stoppedby the arm c coming in contact vwith said pin, and the letter of the type- Wheel corresponding tothe letter of the key I will be opposite the impression-pad 3, so that the pad may be brought up and impress the letter at the same time that the paper is perforated, as hereafter described.

It isto be understood that the operator depresses one key before he releases the next, so that the type-wheel only turns from letter to letter, as they are required by the operator in transferring the message to the strip of paper perforating a hole to represent a letter, and also printing the letter opposite the perforation, the object being to space the distances of the perforations, to give the same proportional intervals of time as would occur if the message were sent by the-existing finger-transmitter.

This object is effected iu my present composing-machine-by a feeding-roller, l, that is driven by the shaft c through a gear-wheel, l?, on said shaft, meshing with the Wheel 6 of the roller l, and this wheel 6 and roller l are connected by a ratchet and pawl, 17, so that the roller l will be moved forward by the wheel 6 but the pawl17 Will allow of an additional forward movement being given to the roller Z, for a purpose hereafter named.

The contact-roller 8 is upon a lever, v9, with y iesne 'a spring, so that it pressesthe paper firmly to the paper-feed roller, to feed the paper along reliably, and said paper is led through the guide l0, and in the slot between thepunch s and die t, (shown sectionally in Fig. 3,) and this punch is brought upland perforates the paper when the type-wheel is stopped, and simultaneously with an impression taken from the type upon thepaper.

The punch and pressure-pad are connected and move together. The perforated and printed strips are shown in Fig. 5. The means employed for moving the punch and pressurepad are as follows: `The lever-arm 'm is connected with the punch, and also` with one end of the link n to the crank cupon the vertical shaft c1, to which a friction-pulley, o', is applied, and a belt from suitablepower tends to rotate this shaft fo', and gives a partial revolution whenever the arm 15 is liberated from the anchor-escapement 16, and in that revolution` the crank c moves the punch and `gives the impression. `verticalfshaft with an arm, 18, the `end of `which` is pressed toward the ratchet-wheel I9 by a` spring, 20, and when the type-wheel is The escapement `is upon a revolving the arm 18 cannot fall into the ratchet-teeth far enough for the arm 15 to be liberatedfrom 16; but when the type-wheel is stopped thearm 15 is freed, and the `shaft "v is instantly revolved until the end of the arm 15 strikes `against the end 21 of the escapement, and as the type-wheel starts again this arm passes from 21 to 16, and isl held as before.

In the revolution of the crank-pin n the punch and impression-parlare rst brought up, and then carried back out of the way.

During the rst part of this movement the pin 24 and lever 25 have drawn back the sprng-pawl 26 upon the ratchet-teeth 17 around the head of the feed-roller l, and after the punchis clear of the paper the pin 24, by

its furthermovement, gives to the roller l f about a quarter-revolution, while the typewheel is still stationary, the object of this being to space the distances between the `perforations, so` that, while the said strip of paper `isbeing drawn along through the transmit- `ting-machine at a uniform continuous rate, corresponding with the revolutions ofthe typewheel at the receiving-station, this increased `length ofpaper between each perforation will 3 allow of the paper continuing to move whiley .r the type-wheel pauses to perform the printing,

"which pause takes place while the paper is moving through the transmitting-instrument, gso that the type-wheel in the printing-telegraph will be in unison with the paper strip atthescnding-station, and the letters will be printed in succession in the orderin which the keys have been depressed in this present instrument, and the paper strip, when used for `transmitting, produces the same intervals between the electrical pulsations as would oc-` cur if the message weresent bythe knownnger-key transmitter. y y

The paper moving with therotation of the type-wheel gives the relative distances of the for transletters on the type-wheel selected mission.` l

` The additional length ofpaperthat is sup-` plied by the movement of the ratchet and pawl represents the time of the detention of the receiving type-wheel.

If desired, the paper might be perforated at.

distances apartcorrespondin g to the distances apart of the successive letters upon the typewheel, in which case the transmitting-roller i might be provided with an apparatus similar to that shown in aforesaid Letters Patent, `to produce a pauseof a `quarter-revolt:tion of anism, punching mechanism, and mechanism for stopping the movementof the feed `at dis-` tances proportionate tothe relativedistahces between the successive types to be printed,

so as to compose in astrp ofpaperamessage thatcan be used in transmitting for a printing-telegraph. p

2. The combination `of 'type-wheel and punch in a telegraphic composn,fg-instrument, so that the letter represented by the `perforation is printed simultaneously with the l perforations, as set forth. y,

3. The range of` pins i, operated 1 by `keys, the revolving type-wheel a, shaft a', and-arm e, in combination with the paper-feeding mechanism, punch, andfpunch-actuating devices, brought into operation when the type-wheel is stopped, substantially as set forth. t

4. The combination, withatype-wheel and punching, feeding, and stopping mechanism, ofan additional paper-feed, actuated indepen dently of the motion of the type-wheel, substantially as andfor the purposes` set forth.`

5. A telegraphic transmitting-strip of paper, perforated with holes at distances apart proportionate to the relative `distances of the characters required on a type-wheel, and with additional length between the perfor-ations, to

allow for the time duringlwhich`the`type` wheel is detained in printing, substantiallyas set forth. i t t Signed by me this 22d day of March, A; D.

eno. M. rHnLPs. Witnesses: l

GEO. '.1. PINCKNEY,

OHAs. H. SMITH.

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