US664761A - Printing-telegraph. - Google Patents

Description

No. 664,76I. Patented Dec. 25, I900.

E. KINSMAN.

PRINTING TELEGRAPH.

(Apblication filed Dec. 21, 1899.

9 Sheets-Sheet (No Modal.)

Patented D66. 25. I900.

E. KINSMAN.

PRINTING TELEGRAPH.

(Application filed. Dec. 21, 1899.) v (No Modal.) .9 Shuts-Sheet 2.

WiZ'nesses; if

No. 664.761. Patented Dec. 25, I900.

E. KINSMAN.

PRINTING TELEGRAPH.

(Application filed Dec. 21, 1899.:

9 Sheets-Sheet 3.

(No Model.)

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No. 664,761. Patented De c. 25, I900. E. KINSMAN.

PRINTING TELEGRAPH.

(Application filed Dec. 21, 1899. (NoJdodaL) 9 Sheets-Sheet 4.

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Patented Dec. 25, 1900.

- E. KiNS'MAN.

PRINTING TELEGRAPH.

(Application filed Dec. 21, 1899.) (No Model.) 9 Sheets-$heet 5.

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No. 664,76I. v Patented Dec. 25, I900.

E. KINSMAN.

PRINTING TELEGRAPH.

(Application filed Dec. 21, 18 9-] (No Model.) 9 Sheets-Sh'eet 6.

"m: ac-wms PETERS co. Puotau'mm, v/RSHINGTON DV 9.

No. 664,76l. Patented Dec. 25, I900. E. KINSMAN.

PRINTING TELEGRAPH.

(Application filed Dec. 21, 1899.)

9 Sheots-Sheot 7.

(No Model.)

,INVENTOH i a7 a 1:9! Z5 WITNESSES 3% ATTORNEYS.

w: uonms vnsns com" "ma, vusmum'on n c No. 664.761. Patented Dec. 25, I900.

E. KINSMAN.

PRINTING TELEGRAPH.

(Applicltion filed. Dec. 21, 1899-) -9 Sheets-Sheet 3.

(No Model.)

Patented Dec. 25, I900.

E. Kmsmm.

PRINTING TELEGRAPH.

(Application filed 13cc. 21, 1899.) (No Model.) I 9 Sheets-Sheet 9 m m Q n n E w M a n on v emmrbonuumw WITNESSES //v V'ENTORX- agarmw m: NoRmS Pzrzns co, PHOTO-LITMQ. wrmmowu. nv c.

UNITED STATES.

PATENT OFFICE. Y

EDGAR KINSMAN, OF MALAGA, NEVV JERSEY, ASSIGNOR OF ONE-HALF TO ALFRED B. RICHMAN, OF SAME PLACE;

PRINTING-TELEGRAPH;

SPECIFICATION forming part of Letters Patent No. 664,761, dated December at, 1:566. Appli ati n filed December 21, 1899. Serial No, 741,177. (No model.)

To all whom, it may concern:

Be it known that I, EDGAR KINSMAN, a citizen of the United States, residing at Malaga, in the county of Gloucester and State of New 5 Jersey, have invented new and useful Improvements in Printing-Telegraphs, of which the following is a specification.

My invention relates to printing-telegraph instruments; and the objects of the same are is to reduce the number of type-keys to the minimum, while the maximum number of printing characters or types are retained; to provide a system of switch-keys which may be quickly operated to shift the type-plate into position to print dilierent sets or rows of characters when the type-keys are actuated; to provide an automatic spacing-roller which carries the paper in a spiral line of such pitch that one revolution of the rollermoves the paper just the distance required for the space between the lines of print, provision being made for automatically feeding the paper the required distance for each letter as it is printed; to provide means for moving the full set of types in four directions automatically to bring the desired type to its proper position for printing at the stroke of its key, and to provide a combined mechanical and electricalsynchronizing system whereby messages are printed simultaneously at both ends of the line.

By my system of type-keys and switchkeys a greater speed in operation is attained, as but twelve type-keys are used and four switch or shift keys, and these may be quickly manipulated, as they are practically in one row or line in front of the instrument. \Vhen this simple arrangement of keys is thoroughly understood by the operator, a speed of eight letters per second may be accomplished, and since the paper-roller is automatic in its operation no time is lost in spacing. An entire page of themessage may be printed without concern on the part of the operator, excepting the manipulation of the keys. When this page has been removed from the paper-roller, another may be transmitted and printed, and so on, it being necessary only to shift the paper-carriage once for each page printed, the length and width of the page depending upon the length and di ameter of the paper-roller; t

Many other advantages arising from the simplicity in construction and arrangement of parts will hereinafter more fully appearin 5% the detailed description of my invention;

In the accompanying drawings, which form part of this specification, I have illustrated an instrument involving the principle of my invention; but I do not desire to have it understood that the details of structure are to be adhered to, as many changes may be resorted to which will fairly fall within the spirit and scopeof my invention.

Figure 1, Sheet 1, is an elevation of an in= strnment made in accordance with my invention. Fig.2, Sheet 2, is a plan view of the same. Fig. 3, Sheet 3, is a vertical sectional view of the instrument on the section-line l 1, Fig. 1, looking toward the left. Fig. 4, Sheet 4, is a view, partially in section and partially in elevation, of the paper-roller, the ink-ribbon, the type-plate, the cam-wheel for operating said type-plate, the type-lever, the commutators, and contiguous parts, some of the parts being broken away to better illustrate the construction of the other parts. Fig. 5, Sheet 5, is a planview of the paperroller and the superposed type-plate and adjacent parts, said view being taken on line 5 5, Fig. 1. Fig. 6, Sheet 5, is a section on the line 6 6, Fig. 1, of the magnets for shifting the type-plate. Fig. 7, Sheet 5, is a vertical sectional View of the type-plate, the cylinder mounted within said type-plate, the guideways, and the cam-wheel, a segment of the latter being shown in dotted lines. Fig. 8, Sheet 5, is a detail perspective view of the typeplate, the type being removed therefrom. Fig. 9, Sheet 5, is a detail perspective view 0 of the cylinder for the type-plate. Fig. 10, Sheet 5, is a detail perspective view of one of the type and its retracting-spring. Fig. 11, Sheet 6, is an end elevation of the paperroller, showing the ratchet-and-pawl mechanism for controlling the intermittent movement of said roller. Fig. 12, Sheet 6, is a broken central longitudinal section through the paper-roller, its worm-shaft, and actuating-gears. Fig. 12 is a perspective view of the spacing mechanism with parts broken away. Fig. 13 is a development of the camwheel. Fig. 13 is a development of the coinmutator-rings and, considered in connection with Fig. 13, shows the correspondence of the lugs and straight portions of the grooves in the cam-wheel. Fig. 14; is an elevation of one of the commutator-rings, together with the brushes. Fig. 14 is a view of another one of the commutator-rings, together with the guide-brush bearing on a lug. Fig. 15 is a detailed section showing the brake-lever for the worm-shaft. Fig. 16 is a diagrammatic view of the electrical connections of the printing-keys, synchronizing-circuit, bell, motor, spacing mechanism, and printing mechanism at both stations. Fig. 17 is a diagrammatic view of the shift mechanism and the electrical connections pertaining thereto for both stations.

Like characters of reference designate like parts wherever they occur in the different views of the drawings.

It will be understood that my instrument is a combined transmitter and receiver-that is to say, aninstrument being located at opposite ends of the line or at intermediate stations may be operated to send or receive messages, and when used as a receiver the operator is only required to make slight changes in the electrical connections to remove the pages as fast as they are printed and to keep the paper-roller supplied.

The keyboard has mounted thereon two series of keys, one series of type or printing keys 5 and the other series of shifting-keys 6 for moving the type-plate transversely. The type-keys 5 may be arranged in a single line across the front of the support or base 1, there being twelve so-called type-keys. Slightly in the rear of the type-key buttons and in the center of the series four switch-keys 6 are arranged. These keys may be of any suitable construction, and, as shown, each consists of a button secured to the outer end of a bar 7, .the inner end of said bar being attached to a spring 8, secured to a block 9, rising from .the support 1 by screws 9, provided with means for attaching wires. A tension-screw 10 passes through the bar 7 and is designed to adjust the limits of vibration of the keys. The contact-points 11 for the typekeys pass through the support 1 and are connected inside the cabinet to an armature 12, suspended above the magnets 3. Contactpoints l2 are also provided, to which the up-- per ends of the magnet-wires are attached. These contact-points are located under the armature, so that a circuit is completed through-them and the key whenever one of the keys 5 is depressed.

The four switch-keys 6 are supported in the same manner as the type-keys. The two middle keys are provided each with a contact-point 6 insulated from the body of the key. These points are adapted to fit between the two pieces 6 when the key'is in its upper or normal position, thereby completing the circuit through these points. All four of keys 6 are each provided with a key-magnet 1, located in the cabinet under an armature 13, suspended from the keys. Contact-points 13 are placed beneath the armature, and the upper ends of the magnet-wires are attached thereto, so that a circuit may be completed through the key when it is depressed. The keys are thus held down by the magnets until the circuit is broken, as hereinafter described.

Referring now to Figs. 7, 8, 9, and 10, the type-plate 14 consists of a plate having four rows of perforations and twelve perforations in each row. In each one of these perforations a type 15 is mounted to move endwise.

These types are constructed as shown in Fig.

10 and consist of a round shank 16, which is,

screw-threaded at one end to accommodate the cap 17. The type-face is formed on the opposite end of the shank 16, and aspring l8 surrounds the shank and bears atone end against the cap 17 and at the other end against the inner surface of the type-plate 14. The cap 17 may be adjusted to regulate the impression of the type upon the paper. The arrangement of types in the perforations in the type-plate is as follows:

BWQOQk-tfb alt/19 XHA s-ql- I Flanges 19 extend downward from the typeplate, and projecting from the upper side of said plate are segmental sections 20 of a cylinder which may be called the type-cylin- ICO der. Guide-ribs 21, formed on the segmental 7 sections 20, are fitted to slide in aguide-frame V V 22, having guide-grooves 23. Fitted Within the segmental sections 20 of the type-plate 14 is a traveler-support 34:, Fig.- 9, consisting of the segments 35 and the flanged top plate 36.. f

Journaled in an aperture in the top plate 36 is a traveler-wheel 37, and in line therewith on said plate is a guide-lug 38. The wheel 37 and the guide-lug 38 are designed to travel in the grooves 39 of a cam-wheel 31 toimpart a longitudinal movement to the type-plate, thus enabling any letter in the type-plate to be brought into position for printing.

Referring now to Fig. 4, it will be seen that the guide-frame 22 is suspended upon rods 24.- 24?, connected to the end cross-bars 25 of These rods 24 21L are pro-1 the guide-frame. vided with collars 26, loosely'fitted to the shaft 27. vided with upwardly-extending rods 28.

The collar 26 on the rod 21 is pro- '7 Referring now to Fig. 6, which shows the V shifting mechanism, the numeral 47 designates the top cross-bar of the-frame, and se cured to said cross-bar is a block 47, which serves as a support for a metal yoke 47. Secured to the ends of the depending arms position.

of this yoke are straps 47, Fig. 2, which are attached by screws to the magnets and 30*. These four magnets are arranged oppositely and in pairs and are rigidly connected to the yoke 47". Depending from the block 47 are metal straps 47, to the lower ends of which are pivoted the pendent arms 30. These arms extend downward between the pairs of magnets 3O and 3O and are attached to the intermediate blocks 30. A crossbrace 30 connects the pendent arms 30 and causes said arms to operate in unison. Connected to the block 47 are the depending strap-springs 30 the lower ends of which springs bear against the outer surfaces of blocks 30 and serve to return the magnets 30 and 30 to their original positions after each movement thereof. These magnets 30 and 30 are also arranged oppositely and in pairs beneath the magnets 30 and 30 being rigidly tied in pairs by the blocks 30 Bigidly attached to the upper ends of rods 28 is a strap 29, carrying an armature 29", Fig. 4, which extends horizontally between the magnets 30' and 30 and is normally out of contact with said magnets. A vertical strap 29 connects the armature 29 with an armature 29 for the upper pairs of magnets 30 and 30 The distance between the lower magnets 30 and 30 is such that when the armature is attracted-to one or the other of these pairs of magnets the type-plate is swung transversely by rods 28 and 24 and one of the intermediate lines of type brought into printing position. The springs 3O are of sufficient stiffness to hold the magnets 30 and 30 in position during this operation. The distance between the upper pairs of magnets 30 and 30 is such that when the armature 29 is attracted thereby the typeplate is swung just far enough in either direction to bring the outer lines in printing The lower magnets 30 and 30 do not interfere with the operation just described, because they depend from arms 30 and will swing backward when armature 29 comes in contact therewith, the springs 3O returning them to their initial positions after each oscillation. The electrical operation of this mechanism, which is controlled by the switch-keys 6, will be hereinafter described.

The cam-wheel 31, Fig. 13, is keyed to the main driving-shaft 27, and its periphery is provided with grooves 39. These grooves are practically continuous or, in other words, are formed as a connected groove passing around the wheel to provide a guideway to shift the typeplate longitudinally thereof. These grooves consist of a combination of straight, curved, and diagonal portions. The straight portions (designated by the characters 39 to 39', serially and inclusive) correspond to the comm utator-rings 40,of which there are twelve in number. The lugs 45 on said rings are set to correspond with these straight portions of the grooves 39 of the cam-wheel.

It will be noted that there is but a single straight portion 39 and 39, while the other straight portions occur in pairs. For this reason the first and the-last of the comm utator-rings are provided with but one lug each, while each of the other rings has two. These commutator-rings are secured together with intervening rings of insulating material 43, and the whole comm utator 40 is secured to the hub of the camwheel 31 by screws 41, as shown in Fig. 4. These rings 40 are each provided with a slot or division 44, which is used as a circuitbreaker. A rod 4o,depending from the frame 47, has attached to it two arms 48 of dielectric material, which extend into the commutator and provide supports for two systems of brushes 49 49% The brushes 49 just touch the inner surface of rings 40, and they snap across the slots 44, thereby breaking any circuit through them and the ring. Said brushes 49 are connected in parallel. The brushes 49 bear against the inner surface of the rings 40 throughout a considerable portion of their length, and thereby bridge the slot 44 and do not break any circuit passing through them and the ring. These brushes are connected in parallel to the ground.

A brush 50, rising from the cross-bar 51, Fig. 5, extends up into the path of the lugs on the com mutatorrings 40, so as to make and break a circuit passing through them. The cross-bar 51 is mounted to slide in the guideway 22, and is connected by rods 52 to the ribs 21 of the type-carriage. By this construction the cam-Wheel moves the type-plate and the brush 5O simultaneously in the same direction.

As thus far described, it will be noted that the type-plate'is permitted to have four motionsviz.,a longitudi[tally-sliding movement on the guides 22 and a transverse or to-andfro oscillation on the shaft 27. The longitudinal movement is imparted by the camwheel, and said movement brings the particular type to its position to be printed, while the to-and-fro movement is accomplished by the switclrkeys 6, and this movement brings that one of the four lines of type which is controlled by the particular switch-key used into position for impression.

Referring now to Fig. 4, the type-hammer or printing-lever 53 is secured to the end of a plate 54, pivoted on a rod 55, suspended from the upright bars 56, the upper ends of said bars 56 being secured to a plate 57, attached to the printing-magnet 58. On the outer end of the plate 54 a contact-plate 59 is secured ancLdisposed within the field of the magnet 58. A spring 60 sustains the weight of the printing-lever 53 when the plate 59 is not attracted by the magnet 58, and a rod 61, provided with a contact-point 62, serves as a stop to limit the motion of the printing-lever 53 and also to make electrical connection between the head 61 and the bar 54. -The circuit of the spacing-magnets 93 is completed through this rod 61, one wire being attached to the head 61 and the other wire to the bar 54:. The electric circuit controlling the print ing-magnet 58 is completed through the lower commutator-brush 50. When the coil 58 is energized, the contact-piece 59 is-attracted and the hammer 53 strikes the type which happens to be immediately under it. Since the printing mechanism is stationary, it is obvious that the type must each in turn be brought into the same position under the hammer for printing. It will be noticed that there are a number of vacancies in the typeplate. Therefore the keys corresponding to these may be used for spacing between words.

The paper-roller 63 is of tubular form and maybe of wood covered with india-rubber or similar material. Hubs 64 65 are secured to the opposite ends of the roller, the hub 64: having secured to its outer end a bevel-gear 66, the teeth of which mesh with those of a pinion 67, having a hand-wheel 68, provided with a dial on its uppersurface secured thereto. This dial is used in setting the paperroller, and by means of it the paper-rolls on the transmitter and receiver can be set at the same point, so that the lines and pages on the two copies of the despatch will correspond and the possibility of one running out before the other avoided. The pinion and milled wheel are loosely mounted upon an upright shaft 69, having a central collar 70, which surrounds the hub 64. The opposite end of shaft 69 is attached to a rod 71, fixed to the frame of the instrument. A worm-shaft 72 passes loosely through the hub 6-1: and is engaged with the hub 65. The worm-shaft is mounted at its ends in the framework of the insti-um'ent,aud a brake or screw lever 73 may be turned to hold said shaft in place or to permit it to be removed with the paper-roller. Both ends of this shaft are adjustable vertically by means of the construction shown at one end in Fig. 15, in which 74 is the adjustable bearing-block for the shaft end and 75 is an eccentric disk, which may be turned by the thumb-screw 76 to bear upon the lower end of the pin 77 to raise or lower the shaft This adjustment is rendered necessary to compensate for the thickness of paper as it is printed and removed from the roller 63. The hub 65 is interiorly screw-threaded to fit the threads of the worm-shaft 72. The outer surface of the hub 65 is grooved at 78 for a wheel 79 of the paper-feed mechanism, to be hereinafter described. At the opposite ends of the roller 63 spring-clamps are provided for supporting an ink ribbon 89. clamps consist of semicircular members having their ends 86 bent outward, said ends being heldtogether by the screws 87. Spiral springs 88 surround said screws to separate the ends 86 when the screws are loosened. The rod 71 is clamped between the ends 86 below the roller to prevent the clamps from turning with said roller. The ink-ribbon 89 is held at its ends by the screws 87 at the top of the roller, said ink-ribbon having clamp- These plates 30 at its ends, which engage the screws 87, as shown in Fig. 5.

I may use paper made up in a strip com prising a number of sheets or pages of letterpaper size, said strip being perforated at the side edges of each page, so that as a page is printed it may be detached and another is 7 ready for the printing. The paper is applied to the paper-roller lengthwise the roller and lengthwise the page that is to say, the diameter of the roller is approximately equal in measurement to the width of each letterpage-and the paper is placed upon the roller lengthwise. The type are also arranged lengthwise the roller and, owing to the spiral movement of said roller, an entire page is printed without the necessity of any shift of the carriage. The dotted lines at the lefthand side of Fig. 5 represent the spiral course taken by the printed lines, and it will be understood that the pitch of the threads of the V worm-shaft 7 2 determines the space between the lines of print, owing to the fact that one revolution of the paper-roller moves the paper to the left just the distance of the space between two lines. If it is desired to use separate sheets of paper to print upon, provision is made for holding such paper on the roller. 7

In Figs. 4 and 11 are illustrated four rollers 91, journaled at their ends in bearings 92, extending from the clamps 85. These rollers may be composed of a central rod covered with rubber, and the rubber surfaces of the rollers bear with sufficient friction on the paperroller to hold the separate sheets in place.

too

Referring now to Fig. 12 which illustrates the paper-feeding mechanism, the numeral 81 designates a semicirculardog rigidly keyed to a rod 83, pivoted on a rod 81 at one end and carrying a pawl or detent 82 at its opposite end. A wheel 79, journaled upon the rod 81, shown broken away in said figure,

runs in a groove 78 in the hub 65 of the pa- 7 The ratchet-wheel 84 is attached to the outer face of the hub 65, and the pawl perroller.

or detent 82 engages the teeth of said ratchetwheel'to move the paper-roller step by step as each letter is printed, each tooth of the ratchet-wheel corresponding to the space occupied by each letter. A rod 83 is connected at one end to the dog 81, and its opposite end carries an armature 83, placed within the field of the magnets 93.

81 is secured at one end to the rod 83, and, its opposite end is attached to a support 80. V

This spring normally holds the armature out of contact with the magnets 93 and returns the pawl or detent 82 to the next succeeding tooth of the ratchet 84 after each release of 1 the armature 83" by the magnets 93. The

rod 81 extends from the guide-wheel 79 to r a yoke on the support .80 and is supported by r r The;

the support 80, and a guide-rod 27 rests in the pendent bars 27 and 27, Fig. 1.

lower end of. the support 80 is interiorly. V screw-threaded and fits the axle 72, Fig. 12.

126 A supporting-spring The magnets 93 are rigidly secured to the support 80, being shown broken away for convenience of illustration. It Will be understood that the magnets and their related mechanism travel longitudinally with the paper-roller, but do not rotate with it, as there is no positive connection between the support and the hub 65. The circuit through magnet-coils 93 is only broken by the printing of a letter. The spacing action is thus completed before the next letter is printed.

The main shaft 27 is driven by the electric impulse-motor 33. This motor is provided with a very sensitive governor of modern construction and is synchronized with the motor at the opposite end of the line, as will be hereinafter described. Keyed to the end of main shaft 27 is a small pinion 97 the cogs of which mesh with those of a larger pinion 97", which is keyed on astubshaft journaled in the main upright of the frame of the machine. The wheel 97 carries secured to its outer rim and insulated therefrom a metallic arm 97, which serves as a circuit maker and breaker. This 'arm 97in revolving passes between and comes in cont-act with two downweirdly-projecting metallic tongues 97, which are mounted on a horizontal bar of the frame and insulated therefrom. These tongues are included in the synchronizing-circuit. to be hereinafter fully described. The magnets 95 are secured to the frame and are included in the synchronizing-circuit. A bracket 95, Fig. 1, is attached to the motor-frame and supports an indicator-dial 95. This dial is provided with a hand 95, which is keyed to a horizontal arm 95, whose outer end is pivoted to the upwardly-extending rod said rod carrying an armature rigidly secured to its upper end. When the circuit is completed through coils 95, the armature 95 will be attracted, which will in turn actuate the hand 95 and give a visible indication that the synchronism is in harmony. A switch S is incorporated in the synchronizing-circuit, as shown in the diagrammatic view. A graduated dial 97 of ordinary construction, supplied with an indicator-hand 97, is secured to the upright of the frame immediately behind the small pinion 97. This dial is used in adjusting the synchronism.

The diiferent circuits controlling both the transmitting and receiving machines and their various mechanisms, together with the circuits connecting the two machines, Will now be described in detail. It is to be understood that this wiring of the machine in the most part is only provisional.

For convenience the following system has been adopted for designating the circuits. Reference should be made to the diagrammaticviews:

C is the holding-circuit on the transmitter.

C is the printing-circuit, which includes both the transmitter and receiver.

C is the spacing-circuit common to both machines.

is the motorcircuit common to both ma.- chines.

0 is the bell-circuit, which includes both machines.

G is the synchronizing-circuit, including both machines.

C is the circuit pertaining to shift-key No.2.

C isthecircuitpertaining toshift-key No.1.

0 is the circuit pertaining to the shift-key No.

O is the circuit pertaining to the shift-key No. 4.

The following additional mechanism must be provided in order that my machine may be adapted to be used as areceiver: Connected by wires to the back connections of the switch-keys 6 are points or binding-posts ab 0 d, as shown in diagram. of points or posts a b o d are supplied with electrical connections to be hereinaftertraced. Four metallic strips A B C D are each pivoted at one of their ends to points 6 fg h, which points are connected to the main-line Wires. When the machine isused as a transmitter, strips A B O D are placed in contact with points a, b, c, and d, and when it is used as a receiver they are placed in contact with the points a, b, c, and d. In order that these strips may be shifted in unison in making the change transmitter to receiver, a strip E of dielectric material is secured to each of the strips. A ground G is cut in on the receiver and cut out on the transmitter by means of a plug P. The upper contacts of the two middle keys are bifurcated, as previously described, and are connected to ground. Plugs P and P are provided. These plugs are inserted on the transmitter and are taken out on the receiver, thus breaking the connection. With the exception of these minor changes the two machines are identical. The shift-magnets 30 are shown in the diagram and are distinguished from each other by the symbols 30 30 30 30 It will be understood that each of the printing-keys 5 is connected to one of the brushes 49, which brush is insulated from all the other brushes 49, since the comm utator-ri ngs are insulated from one another. The circuit through any one of the brushes 49 is completed to the ground through the corresponding brush 49, which brushes are connected in parallel to the ground. The only batteries in the main line are the batteries B, and but one of these is employed at any one time, as theone on the receiver is always out out.

Circuit 0, Fig. 16, starts from battery B, which is grounded, and proceeds th roughthe key-magnets of one of the printing-keys 5, through contact-point12,through key, (when key is down,) through brush 49, through commutator-ring 42, through upper brush 49 (this brush bridges the slit 44 of the ring and can never break a circuit made through it,) and to ground. This circuit is established whenever aprinting-key is depressed. It then persists until the lower brush 49 crosses A second series the out 44 and breaks the circuit, thereby releasing the key. The upper brush 49 bridges the slit 44 and cannot break the circuit. During the time this circuit exists the letteris printed by the printing-circuit C which is completed by means of brush 50. This circuit can be oneof highresistance, so as not to rob the main line.

Circuit C is the same as circuit C up. to and including the brush 49. From thence it continues through the commutator ring and lug to the lower brush 50, through the printing-magnets on the transmitter, through the main line, through the printing-magnets on the receiver, through the brush 50, through the lug and ring to the corresponding upper brush 4:9, and thence to ground. This circuit is only brought into existence after one of the printing-keys has been depressed and the brushes 5O simultaneously contact with the lugs on the corresponding ring of the commutator. It is broken as soon as one of the brushes 50 passes from 01f the lug. It is obvious that this circuit can only be completed when the two machines are in accord that is, synchronized.

Circuit C starts from local battery B thence through binding-post, through spacing magnet coils, through printing lever, through lower contact, through upper contact, through pendant, through wire back to binding-post, and back to battery B This circuit is used forspacing and is always closed except during the actual printing of a letter. When the printing-lever is drawn down, the circuit is broken, the armature on the spacing-magnet is released, and the pawl is set. When the circuit is closed again, the armature is attracted and the pawl engages the ratchet-wheel and the cylinder rotated one space.

Circuit C ,controlling the motor,starts from a source of electricity S and proceeds through the motor, through a switch, and thence back to the source of electricity. In practice I may connect this circuit with a relay on the quadruplex, in order that the motor may be started by the operator at the opposite end.

Circuit C starts from battery B which is grounded, thence through bell-magnet coils, thence through switch, through main line to receiver, through switch, through bell-magnet coils, through battery B through binding-post to ground. This circuit is used for signals and may be operated as a local circuit connected to a relay.

Circuit C for beating and adjusting the synchronism starts from ground and proceeds through battery B thence through magnetcoils on the sounder, through tongue 97 on circuit-maker, through point 97, through second tongue 97, through main line to the receiver, through tongue 97 on circuit-maker,

In order to bring This is apply friction to the main shaft 27 on one of the machines, thus retarding the motor.

The switches S, with their connections, are

provided for testing the synchronism. By

closing one of them the sounder will beat whenever the opposite breaker passes between the tongues 97.

For operating the shifting mechanism there are four circuits C C C and C The circuits C and C control the lower shift-magnets,which bring the middle lines of type into position. When the outer line is requiredsay line beginning with Xthe circuit controlling the line H is first closed and then the circuit controlling the lineXwould be closed. This is necessary because the magnets will' not throw far enough to shift line X into position directly. The depressing of the remaining middle key will break the circuits controlled by the two keys.

Circuit C starts from ground connection G on top contact of key 3. Itproceeds through top contact of key 3, the key being up the upper contact is closed by the point 6, thence through key-magnets key 2, key

being depressed it is then held down, then 7 through shift-magnets 30, then through bottom contact-key 2, then through key 2, key 2 being down, then through back connection key2and strap B; then through line-wire to receiver, then through strap B, then through key-magnets key 2, holding key down, then through shift-magnets 30, then through bottom contact-key 2, and then to ground G. It will be noted that this circuit is completed by depressingkey 2 on the transmitter when plugs P and P are in on the transmitter and out on the receiver and plug P being in on the receiverand out on the transmitter. This cir-.

' cuit is broken by depressing key 3.

Circuit C which is always used by adding it to C starts from bottom contact-key 2 on the transmitter, this key being down, thence through key-magnets key 1, thence through shiftmagnets 30 thence through bottom contact-key 1, thiskey being down, thence through key 1, through back connection of I LO key 1 and through strap A to line-wire to re ceiver; thence through strap A,then through lower contact-key l, thence through shiftmagnets 30 ,thence through key-magnets key 1, holding down key 1, thence through bottom contact-key 2 to ground G. This circuit is always broken when C is broken and is only used by being added to it.

Circuit C starts from ground (5: and proceeds through top contactkey2 on the transmitter, key being up, thence through keymagnets key 3, (this key being down it is held,) thence through shift n'iagnets 30 thence through bottom contact-key 3, key being down, thence through back key 3, thence through back connection key 3 to strap 0, and over line-wire to receiver; then through key-magnets key 3, then through shift-magnets 30 then through bottom contact-key 3, and to ground G. This circuit is similar to circuit C Circuit 0 starts from bottom contact-key 3 on the transmitter,this key being depressed, thence through key-magnets key 4, thence through shift-magnets 30, thence through bottom contact-key 4, key being depressed, then through key 4, thence through back connection of key 4, and through strap D to linewire to receiver; then through strap D to lower contact-key 4,then through shift-magnets 30 then through key-magnets of key 4, then through lower contact-key 3 to ground G. This circuit. is similar to C and is only used when added to circuit 0 The operation of my machine may be briefly summarized as follows: Ne will suppose that the two machines are connected up as described and that the back connections of the shift-keys on the transmitter are connected to straps A B O D and the ground is cut out on the transmitter by removing plug P and the top cont-acts of keys 2 and 3 are grounded by inserting plugs P and P, Fig. 17. The signal is then given by means of the bell-circuit and the operators of both machines start their machines and adjust their synchronism by means of the synchronizingcircuit, friction being applied by hand to the main shaft to get the machines to accord. The paper-roller is filled with paper and run up to the extreme end by throwing on crossbelt 100. The operator will now start sending. \Ve will suppose he wishes to send the letter A. He would press shift-key No. 2, completing circuit (3 which would throw the horizontal line containing A to its proper position for printing. The key would remain locked down by the action of its key-magnets. The printing-key controlling A would now be struck. It would close circuit C and be locked down until the lug on the commutator-ring came around and touched the guide-brush and printed the letter on each machine by means of the circuit 0 This circuit isimmediately broken by the passing on of the lug, and the brush 49 releases the key by breaking circuits 0 on passing slit 44. The printing of the letter breaks circuit C and thus permits the pawl 82 to take a new grip. When this circuit is again completed, the magnets 93 attract the armature and space for the next letter to be printed. Suppose the next letter is N. The operator would strike shift-key 2, which would simultaneously release key 3 and lock itself, and the letter would be printed by striking the printing-key corresponding to N. If a space was now required, key 1 would be struck and the line X broughtinto position. Anyone of the keys corresponding to the four blanks could now be struck and a space would be made by breaking and making circuit C, but no letter would be printed.

I claim- 1. In a printing-telegraph instrument, a type-plate, means for imparting four motions to said plate, keys for printing the types, keys for shifting the plate, and means for automatically locking the shifting-keys until another shift-key is actuated, substantially as described.

2. In a printing-telegraph instrument, a grooved cam-wheel, a type-plate carrying a set of types, a traveler connected to the typeplate and running in the grooves, means for rapidly revolving the cam-wheel to reciprocate the type-plate, means for moving the type-plate transversely t0 the reciprocation, a set of keys for actuating the types, substantially as'described.

3. In a printing-telegraph instrument, a type-plate carrying a set of types, a camwheel for reciprocating said type-plate, a set of com mutator-rings, a brush in contact the rewith, a type-lever for giving impression to the type, and electrical means for actuating said parts, substantially as described.

4. In a printing-telegraph instrument, a grooved cam-roller, a type-plate actuated by said roller, a frame within which the typeplate slides, a commutator comprisinga series of rings, a brush connected to the typeplate and moved simultaneously therewith, and means for swinging the frame transversely to present different lines of type to the printing-point,substantially as described.

5. In a printing-telegraph instrument, a set of types mounted in a plate having guide-ribs thereon, a grooved frame in which the ribs are adapted to slide, a cam-wheel for moving the type-plate longitudinally, said frame being suspended from a shaft, and an electroinagnet for rocking said frame when a shiftkey is actuated, a set of shift-keys, and a set of type-keys, substantially as described.

6. In a printing-telegraph instrument, a commutator comprising a series of metallic rings and interposed rubber rings, said rings having disconnected ends, brushes inside the rings and in contact therewith, a brush hearing on the outside of said rings, and means for shifting the outer brush, substantially as described.

7. A commutator consisting of a series of metallic rings insulated from one another, each of said rings having a transverse slot or out therein, one or more projections or lugs 8. Ashifting mechanism comprising a pivoted arm attached to a type-bearing plate, said type-bearing-plate, armatures mounted on said arm and extending across the poles of electromagnets, electromagnets mounted adjacent to said armatures and adapted to actuate said arm and hold it in four independent positions, substantially as described.

9. A synchronizing system comprising an electric circuit, circuit-breakers one on the transmitter and one on the receiver, said circuit-breakers being connected to their respective instruments in such a way that the circuit is completed and broken by said circuitbreakers simultaneously at-both stations, a switch for cutting out one of said circuitbreakers, and sounders included in said circuit and adjacent to said circuit-breakers, substantially as described.

10. In combination with a type-plate and a set of types mounted thereon, of a wheel having a groove therein which extends four times around its circumference and consists of alternate parallel and diagonal portions, constructed to reciprocate said. type-plate longitudinally by turning on its axis in one direction, means for connecting said type-plate and said grooved Wheel, to enable the plate to be reciprocated thereby, and means for printing said type.

11. In combination with a set of type mounted in a type-plate, of the grooved wheel constructed to intermittently actuate said typeplate to reciprocate it, by revolving on its axis in one direct-ion and means for connecting said type-plate and said grooved wheel to enable the type-plate to be reciprocated thereby.

12. In combination with a set of type mounted in a type-plate, of the grooved wheel constructed to reciprocate said type-plate longitudinally by being revolved on its axis in one direction and means for connecting said typeplate and said grooved wheel to enable the plate to be reciprocated thereby.

13. In combination with a set of type mounted on a type-plate, of the grooved wheel constructed to reciprocate said type-plate longitudinally by revolving on its axis in one direction, means for connecting said type-plate and said grooved wheel to enable the plate to be reciprocated thereby, means for moving said type-plate transversely, and means for printing said type.

14. In combination with a set of type mounted in a type-plate and means for reciprocating said plate, of the brush adapted to be reciprocated in unison with said type-plate,- the mechanism for printing said type, and means for completing a circuit through said brush to actuate said printing mechanism.

15. In combination with a paper-bearing or platen roll mounted on a worm-shaft, of the ratchet-wheel secured to said roll, the dog adapted to engage said ratchet to actuate said roll, the armature, means for connecting said dog and said armature, means for holding said armature out of contact with the magnets when they are not attraetingit, the magnets mounted in coils and adapted to attract said armature, and means for making and breaking a circuit through said magnet-coils to intermittently turn the platen-roll.

16. In combination with a paper-bearing roller supported on a worm-shaft and means for revolving said roller, of the clamps encircling said roller, near the ends, and adapted to support a typeribbon, means for holding said clamps from turning with said roller, and the type-ribbon supported on said clamps. 17. In combination with a set of types mounted on a type-plate and means for actuating said type-plate, of the pivoted bar provided with a printing-hammer and an armature mounted thereon, the stop for limiting the upward movement of said bar, the spring adapted to hold said pivoted bar normallyin contact with said stop, the magnets mounted in coils and positioned to attract said armature, when energized, to actuate said hammer to strike and print one of said types, and means for energizing said coils to energize said magnets.

18. In a printing-telegraph instrument, a type-plate carrying a setof type, a grooved ca m-wheel adapted to be revolved on its axis to re iprocate said type'plate, a traveler on said type-plate adapted to run in the groove in said cam-wheel, and means for printing said type.

19. In a printing-telegraph instrument, a type-plate provided with a set of type, means for actuating said type-plate, means for print ing the type, said means being controlled by type-keys, means for rocking the plate which is controlled by shift-keys, means for locking each of said shift-keys after it has been depressed, and means for releasing the locked shift-keys, which is operated by one of the other shift-keys.

20. In a printing-telegraph, a commutator comprising a series of metallic rings and interposed dielectric rings, said metallic rings having disconnected ends and lugs thereon,

brushes mounted inside said rings and adapt ed to contact therewith, a brush adapted to contact with said lugs to make and break a circuit, and means for actuating said rings.

21. In combination with the guide-frame having guide-grooves therein, of the typemy hand in presence of two subscribing wit- DGSSGS.

EDGAR KINSMAN. IVitnesses:

ERNEST REDFIELD, A. H. TUNOKHAMER.

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