US606329A - Printing-telegraph - Google Patents

Description

a? (No Mddel.)

Y B'. A. BROOKS.

PRINTING TELEGRAPH.

PTO-1606,829- Patented'June-28, 1898'.

5 Sheets-Sheet 1.

m: NORRI: vnzns ca. PHOTO-LITHD.. wsumwou, u c

5- Sheets-Sheet 2.

(No Model.)

B. A BROOKS PRINTING TELEGRAPH.

No. 606,329. Patented June 28, 1898.

Ih IJHHIIIIIIIWHI I \illL ma Noams PETERS 00.. mom-Una, Msrumomwv 11 c4 (No Model.) 5 Sheefis-Sheet 3.

B. A. BROOKS.

PRINTING TELEGRAPH.

No. 606,829. Patented June 28,1898..

THE NORRKS PETERS co moraufuou WASHINGTON, D, c.

(No Model.)

5 SheetsSheet 4. B. A. BROOKS.

PRINTING TELEGRAPH. No. 606,329.

Patented June 28, 1898.

5 SheetsSheet 5 (No Model) B. A. BROOKS. PRINTING TELEGRAPH.

Patented June 28; 1898.

llniirnn ST TE BYRON A. BROOKS, OF

PATENT Orricn.

BROOKLYN, NEW YORK.

PFtlNjTliNG-TELEGRAPH.

SPECIFICATION forming part of Let-re me t No. 606,329, dated June as, 1898. Application filed ha 20, 1894. ean No. 497,553. on model.)

I To all whom, it may concern:

Be it known that I, BYRON A BnooK s, a citizen of the United States, residing in Brook-j lyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Printing Telegraphs, of which the following is a specification.

My present invention consists in certain novel parts and combinations of parts formin g a system of printing-telegraph and means for practically working suchsystein and also certain novel methods. These novel features, both apparatus and methods", will bdspecific ally pointed out in the claims concludingthis specification. I p

The following is a description of the appa ratus illustrated in the" accompanying drawings and a few ofthe modifications thereof which may be adopted without departing from the spirit of my invention, broadly con-' sidered; but it will be understood that my invention is not limited to the precise parts and combinations of parts herein illustrated or to the modifications' herein described. j

Referring to the accompanying drawings, Figure 1 is a top view of a devicelocated at the sending end of the line. Fig. 2 is a side view of the same. Fig. 3 is an end view of a device located at the receiving end of the line. Fig. 4 is a front view of the same. Fig. 5 is a top view of the same. Fig. 6 is an end view, and Fig. 7 a sectional view, of adistributer adapted to be used in combination with the other devices shown.

I will now describe the structure of the several devices shown in the drawings and the method of operating the same. This description will enable any one skilled in the art to employ my invention in the forms at present preferred by me.

Figs. 1 and 2 respectively show top and side views of a keyboard constructed 011 the general principle of a type-writer keyboard and also means for sending over a single line-wire electrical impulses,w hich at the receiving end of the line are caused to operate, through the medium of proper translating devices, a typecarrier. This sending apparatus may consist, as shown, of a keyboard merely, with proper connecting devices, or it may consist of a type-writer complete, the only difierence being that in one case no printing will be done at the sending end of the line, while in the other printing will be simultaneously performed at both the sending and receiving 5 ends. I v i M, Figs. 1 and 2,is a shaft revolving at a determined speed by means of any suitable or convenient power. This shaft is arranged to constantly revolve at a determined speed. Instead of being so arranged it might be arranged to revolve at a determined speed for only a single revolution by means of a stoppin projecting into the path' of a projection or depression on theshaft, (said pin being automatically withdrawn at each printing impulse,) or it might be arranged to work by the well-known step-by-step movement. 25 25 are a series of disks attached to said. shaft, eachcarrying a pin 0. The pins 0 on the several disks occupy different positions, being arranged progressively in the form of a spiral, so that only one of the pins is in a given line parallel to the axis of the shaft at any instant. At the forward end of the device is a series ofkeys bearing one or more characters corresponding with the characters carried 'by the type-carrier operated thereby at the receiving end of the line. Besides the keys bearing characters there is a key marked Space, which has the function of an ordinary spacingkey in a type-writer, and the keys 13 and O, which control the position of the shifting platen, so as to print one or the other of the characters on the type-carrier which are in a line at right angles to the line of print.

E is a scale, and D a pointer operating in connection therewith, so as to indicate the printing-point on the traveling platen at each impulse, as in an ordinary type-writer. The frame carrying the pointer D is fed forward at each printing impulse for this purpose.

Now assuming that there is a shaft at the receiving end of the line revolving at precisely the same speed as is the shaft M or that .there is at the receiving end some distributin g mechanism always in the same phase of operation as is the shaft M, said shaft or mechanism being provided with means by which at any given instant electrical contact or a cessation of electrical contact is made with con trolling means for operating the typecarrier, it is plain that at this instant the impulse from the sending end of the line will be delivered to said receiving mechanism and may be utilized to cause the type-carrier to print the corresponding character. It is also plain that if at successive points in the revolution of said shaft or simultaneously electrical contact is established with mechanism arranged to operate the several devices controlling the different elements of the type-carrierit is only necessary to provide at the sending end some means for closing or opening a circuit between the lines and the generator at that particular instant.

Key-levers 3 to 15., Fig. 1, are each pivoted on a bar 26, Fig. 2, and are bent upward, so as to stand behind an arm 0', pivoted at the lower end to the frame of the machine and carrying on the upper end a pivoted arm I). The arm 17 carries a wedge-shaped pin 0, projecting from the side normally removed from the path of the pin 0 on its corresponding disk 25. V hen one of the said key-levers is depressed, it presses the barn forward until the projection c is brought in thepath of the pin 0. WVhen the pin 0. strikes the pin 0, (the surfaces of both beinginclined,) it throws the bar v still farther inward until it comes in contact with the contact-point g. The bar 1) being in circuit with a generator of electricity and the contact g being one of the terminals of the line-circuit when the pin fis brought in contact with the pin g the generator-current is transmitted over the line to the receiving end. In this way an electrical impulse is sent to line at a determined time--that is, at that instant during the revolution of the shaft M when the pin 0 on a given disk is passing the pin 0.

c is a pin also projecting from the side of the disk 25 behind the pin 0, placed in such a position that when the pins)" and g are in contact it will strike upon the other side of the pin 0 and throw the rod 1) back to its normal position,'in which the pin 0 is out of the path of the pin 0.

h is a lockin g device which drops in position behind the tail of the rod 1) when it is pressed forward by the key-lever, so that having been pressed forward by the key-lever it will continue to stand in the path of the pin 0 until it is struck thereby. WVithout such or an equivalent device it is possible to conceive that the pin 0 might be thrown in the path of the pin 0 and be withdrawn therefrom before it had been struck thereby and that no electrical impulse would be sent over the line. This might readily occur if the key were depressed for an instant only just after the pin 0 had passed the contact-point.

Located at the receiving end of the line is a distributer. (Shown in Figs. (3 and 7.) It consists of a shaft J, made to revolve synchronously with the shaft M at the sending end. 28 is a disk mounted on said shaft J, carrying a wheel K, pivoted eccentrically thereto, the periphery of which extends above the periphery of wheel 28.

29 is a stationary drum provided with binding-posts corresponding in number with the key-levers at the sending end; Projecting scribed.

springs working against each other.

from the drum is a corresponding number of springs m and m, insulated therefrom normally, but which are brought in electrical connection with each other at the instant that the wheel K passes under the contact-spring 7%. All the springs m are constantly in electrical contact with the main-line wire through the binding-post 30. \Vhenever, therefore, a spring m and the corresponding spring on are brought in contact, the current from the main line flows through binding-post 30, spring m, spring m to the binding-posts 1 to 16, whichever is connected therewith. As each of these binding-posts is connected with the operating mechanism of one of the typebars, the type-bar to which it is connected is caused to be thrown down to print.

Fig. 5 shows a series of magnets, numbered 3 to 15, each of which is connected with one of the printing type-bars. 'When a current is caused to pass through the coils of one of these magnets, its armature is attracted, which, be

ing connected by the rod 00 in the ordinary way with a pivoted type-bar,,throws it down against the platen.

By the above description it will be evident that in a structure organized as described the l depression of a given key at the sending end will cause the corresponding key-lever to print at the receiving end, and that but a single line-wire is required to transmit the electrical impulses necessary to accomplish these results.

Referring to Figs. 3 and 4, G is the papercarriage, capable of being vibrated so as to present the printing-point on the paper to either of the types on a type-bar. I have shown three type on atype-bar and a platen capable of being shifted from a central position in both directions for the purpose above de- When the shift-key B, Fig. 1, is operated, the magnet 1, Fig. 3, causes the platen to vibrate by means of lever H, and

when the shift-key O is operated the magnet 2 causes the platen to vibrate in the opposite direction by means of same lever IT. The depression of either shift-key locks the platen in its new position by means of the lever N,

I Fig.4, which under the in fluenee of a spring slips behind the lever H. The platen is returned to its normal position by means of (Not shown.)

The depression of either of the keys B or f C, Fig. 2, raises automatically the lever 16 by the levers h h, which are normally de l pressed by a spring. these keys automatically depresses the lever The release of either of 16, which thus sends a signal to its correspondin g magn et 16, Fig. 4, which draws back 3 the lever N and releases the lever H, which under the influence of its springs, as stated, returns the platen to its normal central position. It will thus be seen that the depression of either shift-key vibrates the platen of the receiver to the corresponding position and ITO of the receiver is thereby fed forward a step without printing.

The manipulation of the keys mechanically operates the space-pawl F, Fig. 1, which moves the pointer D over the scale E, which indicates the position of the printing-point on the receiver. The pointer is fed against the spring N and retained by the pawl F". When the pointer D reaches the end of the scale,

the pawl F is automatically released by a projection on said pointer, and the pointerD returns to the left under the influence of the spring N. The pawl F may also be released by the magnet 17, operated by the return of the carriage in the receiver, and thus indicates the synchronism of the mechanism.

Referring to Figs. 3, at, and 5, Gis the frame of the paper-carriage, which travels longitudinally upon the rod 1. O is the platen upon which the printing is done, over which the sheet of paper passes between the rolls Q Q. The T- shaped platen rests in the fork of the lever II, by which it is vibrated backward or forward. R isarack attached to the carriage G, by which it is fed forward from right to left at each impression. This is eifected by the pawls r r, Fig. 5, operated by the local magnet L.

To each type-bar is attached a connectingrod 00, one end of which is connected to the armature of a magnet and the other to the type-bar, near its fulcrum. When the armature is drawn to the magnet, the rod or is impelled forward and the type-bar thrown down to print, a ribbon (not shown) being interposed between the type bars and paper. Each rod 00 is provided with two pins t t,which when the rod is thrown forward strike the lever Z and makes connection with the local magnet L, by which the pawl r is operated to push the carriage one notch to the left against the weight IV, Fig. 4E. The pawl r, Fig. 5, drops into the rack R and prevents its being drawn back until released. This is accomplished as follows: A slidingrod (not shown) is attached to the pawl 0", which when the carriage reaches its extreme movement to the left is struck by the end of the frame G,which throws the pawl 0 out of the rack R. The carriage is then drawn back to the right by the weight IV, when the rod is struck by the other end of the frame G and the pawl r is thrown into the rack R. Also, when the carriage G is drawn to the right the cam S, Figs.

4 and 5, strikes a projection on the frame of the printer and causes the rolls Q Q to rotate sufficiently to feed the paper F forward to present a new line for printing. These movements are all performed automatically when the end of the line is reached.

The operator perceives by the scale, Fig. 1, the position of the printing at the receiver, as at each impression the pointer and the papercarriage are each advanced one step. When the operator perceives that the printing is near the end of the line, he properly divides the word and then strikes the space-key one or more times until the carriage reaches the limit of its motion, when it returns automatically. It will be observed that while the paper-carriage travels from right to left, as is necessary, the pointer travels from left to right as the printing is done.

Having thus described the particular form of apparatus which is illustrated in the accompanying drawings and which is capable of performing the several functions desired, I will incidentally point out some of the modifications which may be employed without departing from the spirit of my invention and without exceeding the scope of the concluding claims.

Instead of employing a plurality of type bars each provided with a plurality of types characteristic of ordinary type bar machines-as, for example, the Remington which type-bars in the aggregate constitute the type-carrier, I may employ any other suitable type-carrier-as, for example, a wheel with a plurality of rows of type at right an-' gles to the line of print characteristic of the class of type-writers known as wheel-machines, of which the Hammond is a wellknown example.

As far as the broad features of myinvention are concerned it is immaterial whether the types in a plurality of rows at right angles to the line of print are carried 011 a single type-carrier or on a plurality of independentlyoperating carriers, and it is immaterial whether the character itself approaches and is impressed upon the paper or whether the paper approaches and makes contact with the type, and it is also immaterial whether the ink is applied to the type before impression or by aribbon at the instant of impression. The term type-carrier in the claims is therefore intended to include the feature broadly, independent of detail construction or mode of operation.

i/Vhile, asl have stated, other forms of type carriers may be used, I prefer to employ a plurality of type-bars, as shown, since these enable the printing to be done in sight.

I have. shown a type-carrier which has no movement in the lines of the several rows of type at right angles to the line of print that it bears, the movement of the platen being relied upon to present the different rows of type to the printing-pointg but I might employ a type-carrier either of the type-bar or wheel variety which has an independent motion in this direction, or I might employ mechanism which shifts both the platen and the type-carrier in this direction, and thereby still further reduce the number of operatingmagnets with respect to the number of types which they operate. A shifting type-bar is now well known in the art.

The type-carrier, whether it be a wheel or plurality of independently-movin g type-bars, has on it a plurality of rows of type parallel with the line to be printed and a plurality of rows of type transverse to said line. By the shifting of the carrier or the platen, or both, one or the other of the rows parallel with the line to be printed is brought into the position to be impressed.

I am aware that stock-telegraphs are old in which a type-carrier is employed; but in these the type-carrier is operated directly by mechanism at the sending end of the line, while in my system there is interposed between the type-carrier and the sending end a distributer which distributes the impulses, whatever their character may be, to mechanism controlling the operations of the typecarrier.

I have shown one form of distributer, but I do not wish to be understood as limiting myself to this form, as others might be used operating on substantially different principles. For example, the harmonic system of transmission and distribution might be employed.

I have described and shown rotating members at both ends of the line operating synchronously and continuously. Instead of using a continuously revolving member I might employ members which revolve synchronously for only one complete revolution, being stopped and started automatically by the impression of key-levers. This may be accomplished by providing the mechanism shown in the drawings with a pin withdrawn mechanically at each impulse of the printingkey, allowing the shaft under the influence of a spring or other power to make one revolution, at the same time sending an impulse over the line-wire which will actuate a magnet, causing it to withdraw simultaneously a corresponding pin from the distributer and allow it also to make one revolution.

It is obvious that while the shaft with its pins arranged spirally from left to right (see Fig. 1.) is making a revolution as many impulses may be sent successively in that order as keys are operated in the same order, or as many impulses may be sent successively as keys are actuated simultaneously in the order in which the pins are placed on the revolving shaft. In view of this fact it is obvious that the shifting levers might be connected to and operated by the keys in the rows with which they are associated, because when the rotating members make but a single complete revolution they would always be stopped at the same point, and the first contact could be made to operate the shifting mechanism, which would continue in operation, as I have above described, until it was released after the printing impulse. It is preferable to employ independently-operating shift-keys, as shown in the drawings, when capitals and small letters or other characters are to be printed by shifting the type-carrier or the platen; but where the shifter is to be invariably used with a given row of keys I prefer to modify the mechanism, so that the shifting and printing operations are controlled by a single key.

In the mechanism described a current of electricity is caused to operate the controllin gmagnet, but it will be understood that the action of the magnets might be reversed, so that the mechanism would be operated by the interruption of the current.

Instead of using ordinary magnets to control the mechanism I may employ any other suitable apparatus-such, for example, as polarized relays.

It is obvious that connection may be made at each binding-post with two or more magnets, so that several operations may be performed simultaneously, if desired; also, that as many receivers as desired may be included in the same circuit and operated simultaneously.

I have described the platen-carriage as positively fed forward by means of a magnet and returned to its initial position by a weight or a spring. If desired, it might be moved for-.- ward under the influence of a weight or spring and returned to its initial position by electrical means-for example, by a solenoid-or it might be fed in both directions by positive electrical means.

\Vhile I have described the use of only one line-wire, a plurality of wires might be used, in number, however, less than the number of the characters on the type-carrier.

Some of the features herein described and claimed are applicable to electrical typewriters in which the sending and receiving elements are not located at a distance and in which there is, properly speaking, no line wire or wires.

In the foregoing specification I have incidentally referred to some of the modifications which might be employed in the practice of my invention; but I have not endeavored to specify all the modifications which might be adopted, the object of this specification being to instruct persons skilled in the art to which my invention relates to make and use the same in the form at present preferred by me and to enable them to understand its nature, and I desire it to be distinctly understood that reference by me to some modifications is not in any way intended to exclude others not referred to, but which are within the spirit and scope of my invention, and that in so far as my invention consists of novel methods these are independent of the mechanism described or of any particular mechanism.

Many of the combinations and details illustrated and above described are not essential to the several features of my invention sep-L arately and broadly considered. All this will be indicated in the concluding claims, where the omission of an element or the omission of reference to the detail features of the elements'mentioned is intended to be a formal declaration of the fact that the omitted elements or features are not essential to the inventions therein severally covered.

\Vhat I claim is i 1. In a print-ing-telegraph, a combined transmitter and distributer, comprising a continnously-revolving shaft, a set of key-levers, a circuit changer or changers and mechanism between the levers and shaft whereby the depression of any key changes the circuit to send an impulse over the line after a predetermined time corresponding to the key.

2. In a printing-telegraph, a combined transmitter and distributer comprising a uni-. formly-revolving shaft, a set of key-levers, a circuit changer or changers and mechanism between the levers and shaft whereby the depression of any key changes the circuit to send an impulse over the line after a predetermined time corresponding to the key, combined with a distributer at the receiving end revolving synchronously With the shaft and an electromechanical receiver.

3. In a printing-telegraph, a combined transmitter and distributer at the sending end, a keyboard, a line-wire, a distributer at the receiving end, an electromechanical receiver and mechanism combined with said keyboard whereby the depression of any key changes the circuit at a predetermined time corresponding to the revolution of the distributer and closes a local circuit corresponding to the key depressed on the keyboard.

4. In a prin ting-telegraph the combination of a keyboard at the sending end, a type-carrier at the receiving end having a plurality of rows of types, a plurality of magnets at the receiving end, means for distributing to the receiving-magnets the impulses transmitted by the operation of keys at the sending end, a longitudinally traveling platen, a translating device and means for electrically energizing said translating device, whereby the platen and type-carrier have a relative vibratory motion to present one or the other of said rows in position to print by the operation of keys on the keyboard.

5. In a printing-telegraph, the combination of a keyboard at the sending end, a type-carrier at the receiving end having a plurality of rows of types, a longitudinallytraveling' paper-carriage, a translating device, means for electrically energizing the said translat ing device, whereby the platen and type-carrier have a relative vibratory motion to pre sent one or the other of said rows in position to print and means for causing the impres- ,sion of the type, both the translating device and means for causing the impression of the types being controlled by the operation of keys on the keyboard.

6. The combination of a keyboard, a typebar carryinga plurality of rows of type, a vibrating and longitudinally-traveling platen and a translating device energized by at current of electricity whereby the platen is caused to vibrate transversely to the line of print by the operation of keys on thekeyboard.

7 The combination of a type-carrier carry ing aplurality of rows of types, a keyboard, a vibrating and longitudinally-travelingpapercarriage, translating devices controlled by a current of electricity by which the paper-carriage is caused to, travel longitudinally and to vibrate transversely to the line of print so as to impress any one of the type of the several rows.

8. The combination of a keyboard, a typecarrier having a plurality of rows of types, a longitudinally-traveling platen, atranslating device and means for electrically energizing said translating device whereby the platen and type-carrier have a relative vibratory motion to present one or the other of said rows in position to print by the operation of keys on the keyboard and mechanism at the sending end whereby the shifted member-is automatically returned to its normal position.

9. In a printing-telegraph, the combination of a keyboard at the sending end, atype-carrier at the receiving end having a plurality of rows of type, a vibrating and longitudinally traveling paper-carriage, a magnet by which the type-carrier is operated, a magnet by which the platen is vibrated transversely to the line of print, and means for distributing to the respective magnets the impulses transmitted by the operation of corresponding keys on the keyboard.

10. The combination of'a keyboard, a type carrier carrying a plurality of rows of type, a vibrating an d longitudinally-traveling papercarriage, means energized by a current of electricity for moving said paper -earriage longitudinally and vibrating it transversely to the line of print so as to impress any one of the types of the several rows and means for automatically returning it to its initial position.'

11. In a printing-telegraph the combination of a keyboard at the sending end, a type-carrier at the receiving end having a plurality of rows of types, a longitudinally-traveling paper-carriage, a translating device controlled by a current of electricity whereby the platen and type-carrier have a relative vibratory motion to present one or the other of said rows of type in a plurality of new printing positions to print in a single line, means for holding the vibratory member in position and means for returning it to its normal position and for holding it there.

12. In an electromechanical printingmeclr anism the combination of a keyboard containing character-keys and a shift-key with a series of type-carriers corresponding to the character-keys on the keyboard each provided with a plurality of types and a paper-carriage, said type-carriers and paper-carriage having a vibratory movement with relation to each other so as to print the several types in line, a source of electrical energy and means controlled by the operation of said shift-key whereby the shifted member is automatically locked when the shift-key is depressed and unlocked when said key is released.

13. In a printing-telegraph, key-levers and a revolving shaft provided with contact-points at the sending end, combined with a distributer composed of a synchronously-revolving arm, andsuitable contact-points, a type-carrier carrying a plurality of rows of types, a paper-carriage, said carriage and carrier having a vibratory movement in relation to each other and electrotranslatin g devices by means of which they are operated at the receiving end.

14. In a printing-telegraph, the combination of a keyboard at the sending end containin g character-keys and a shift-key with a plurality of type-carriers at the receiving end each provided with a plurality of types and a paper-carriage said type-carriers and papercarriage having a vibratory movement with relation to each other, a line-wire and means controlled by said shift-key whereby the paper-carriers are shifted to receive the impression of the several types on the type-carriers, an automatic lock for locking the shifted member and mechanism at the sending end whereby an impulse is sent over the line to unlock said member and allow it to return to its normal position.

15. In a printing-telegraph the combination of a keyboard containing character-keys and shift-keys, means for sending a succession of impulses over a line-wire by the operation of said keys, an electromechanical printing mechanism comprising a plurality of typecarriers each provided with a plurality of rows of type and a paper-carriage, said carriage and type-carriers having a vibratory movement with relation to each other controlled by the operation of shift-keys on the keyboard.

16. The combination with a keyboard of a scale and pointer, means for causing said pointer to advance at each printing impulse by the operation of the printing mechanism, a magnet for releasing said pointer and means for automatically returning it to its initial position.

17. In a printing-telegraph, a keyboard, a uniformly-revolving shaft, a circuit changer or changers at the sending end combined with a synchrouously-revolving shaft at the receiving end, local circuits corresponding to keys and electromechanical printing 1nechanism comprising a plurality of type-carriers each provided with a plurality of rows of type and a paper-carriage, said carriage and carriers having a vibratory movement with relation to each other controlled by a current of electricity.

18. The combination of a keyboard, a typecarrier having a plurality of rows of types, a platen, said platen and type-carrier havinga vibratory motion with relation to each other and an electromagnet by which said vibration is caused, mechanical means for retaining the vibrating member in position during the operation of printing and means for releasing said vibrating member and returning it to its normal position.

19. The combination with a type-carrier provided with a plurality of rows of type, a keyboard, a vibrating and longitudinallytraveling platen, a translating device energized by a current of electricity whereby the platen is vibrated to a plurality of new printing positions so as to impress any one of the types of the several rows by the operation of keys on the keyboard, means for holding it in its new printing position and means for returning it to its normal position.

20. The combination of a keyboard, a typecarrier provided with a plurality of rows of type, a vibrating and longitudinally-traveling platen, a translating device energized by a current of electricity whereby the platen is vibrated to a plurality of new printing positions by the operation of keys on the keyboard, means for holding it in its new printing position and means for automatically returning it to its normal position and forholding it there.

21. The combination of a keyboard, a plurality of type-carriers each provided with a plurality of type, a longitudinally-traveling paper-carriage, means controlled by a current of electricity by which the paper-carriage is vibrated from a normal printing position to a plurality of new printing positions, mechanical means for retaining it in position during the operation of printing and means for returning it to its normal printing position and for holding it there.

22. In a printing-telegraph the combination of an electromechanical printing mechanism comprising a plurality of type-carriers each provided with a plurality of rows of type and a paper-carriage, said carriage and typecarriers having a vibratory movement with relation to each other, a keyboard at the sending end comprising character-keys and shiftkeys and means whereby when a shift-key is operated a vibratory movement is effected in the printing mechanism between said typecarriers and paper-carriage, means for retaining said vibratory member in its shifted position until printing is effected and means for automatically restoring it to its normal position. BYRON A. BROOKS. Witnesses:

J. EDGAR BULL, M. WILSON.

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