US894142A - Telegraph transmitting instrument. - Google Patents

Description

PATENTED JULY 21, 1908 P. H. W. HIGGINS. TELEGRAPH TRANSMITTING INSTRUMENT.

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APPLICATION FILED DEC. 12, 1905.

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F. H. w. HIGGINS. TELEGRAPH TRANSMITTING INSTRUMENT.

APPLICATION FILED DEC. 12. 1905.

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No. 894,142. PATENTED JULY 21, 1908.

F. H. W. HIGGINS. TELEGRAPH TRANSMITTING INSTRUMENT.

APPLICATION FILED DEO.12. 190

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PATENTED JULY 21-, 1908.

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N0. 894,142. I PATENTED JULY 21, 1908. P. H. W. HIGGINS.

TELEGRAPH TRANSMITTING INSTRUMENT.

APPLICATION FILED DEC. 12, 1905.

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No. 894,142. PATENTED JULY 21, 1908.

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TELEGRAPH T RANSMITTIN G INSTRUMENT.

APPLICATION FILED DEC. 12. 1905.

10 SHEETS-SHEET 7.

No. 894,142. PATENTED JULY 21, 1908.

P. H. W. HIGGINS.

TELEGRAPH TRANSMITTING INSTRUMENT.

APPLICATION FILED DEG.12. 1905.

10 SHEETS-SHEET 8.

No. 894,142. PATENTED JULY 21, 1908.

I. H. W. HIGGINS.

TELEGRAPH TRANSMITTING INSTRUMENT. APPLICATION FILED DEC. 12, 1905.

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TELEGRAPH TRANSMITTING INSTRUMENT. I

APPLICATION FILED DEG. 12, 1905.

10 BHEETEi-SHEIIT 10.

UNITE FREDERICK HERBERT WILLIAM HIGGINS, OF LONDON, ENGLAND.

TELEGRAPH TRANSMITTING INSTRUMENT.

To all whom it may concern:

Be it known that I, FREDERICK HERBERT NILLIAM HIGGINs, a subject of the King of Great Britain and Ireland, and residing at 17 and 18 Cornhill, London, E. (1., England, have invented certain new and useful Improvements in and Relating to Telegraph Transmitting Instruments, of which the following is a specification.

The invention relates to telegraph transmitting instruments and has especial reference to transmitters working in conjunction with type-printing receiving instruments.

In transmitters of the class indicated such as are now commonly used, very considerable skill is required on the part of the operator since the intervals of time which elapse between the depression of any two consecutive keys necessarily vary according to the arc turned through by the type wheel or by the transmitting shaft which runs synchronously with it; the operator has therefore to be guided largely by ear and the irregularity of the intervals referred to and the awaiting of the sound signals indicating that a given letter has been printed render it impossible to transmit at the highest speed at which the receiver is capable of working.

Now I seek by my invention to overcome these diiliculties by the use of a perforated tape which automatically operates the transmitting apparatus so that as a net result of my invention I am able to transmit at speeds higher than those at present practicable I wish it to be understood however, that automatic transmitters involving the use of a perforated tape have before now been used, for instance in the Morse system of signaling where certain perforations in the tape represent a dash and a dot respectively all signals being formed of these elements either singly or in combination. The tape which I use however is of suflicient breadth to take nine signaling perforations in each row as well as one or more other-perforations for feeding purposes. As in this case I actually only make two perforations in each row out of a possible nine, excluding such perforations as are used forfeeding purposes, this providesfor 36 transmissions each of which corresponds to a separate character. In the present case, how ever, I only use 30 transmissions one of which is used for changing over from one type Wheel to the other it being common in instruments of the class in question to have two type Specification of Letters Patent.

Application filed December 12, 1905.

Patented July 21, 1908.

Serial No. 291,472.

wheels one provided with letters for example and the other with numerals fractions and so forth.

My invention consists broadly of an automatic transmitting device or series of devices involving the use of a perforated tape and adapted for use in a type printing telegraph system.

My invention further consists in the automatic contact making and transmitting devices to be hereinafter described.

Referring now to the accompanying drawings which illustrate my invention and form part of my specification, in the drawings similar parts are denoted by the same reference symbols.

Figure 1 is a plan of a contact or circuit maker constructed according to my invention. Fig. 2 is a detail view of the electro magnet for feeding the operating mechanism of the circuit maker. Fig. 3 is a sectional elevation of the circuit maker shown in Fig. 1, the section being taken on the line C C of that figure. Fig. 4 is a front elevation and Fig. 5 is an end elevation of the vertical frame of the circuit maker shown in Figs. 1 and 3. Fig. 6 is a detail view of the ratchet feed mechanism of the circuit maker shown in Figs. 1, 3, 4 and 5. Fig. 7 is a plan and Fig. 8 is a vertical section of the upper part of the vertical frame shown in Figs. 1 and 5. Fig. 9 is an elevation and Fig. 10 is a part sectional plan of a form of transmitter constructed according to my invention. Fig. 11 is a detail view of the transmitter clutch mechanism. Fig. 12 is an end elevation of the standard carrying the transmitter contacts. Fig. 13 is a cross sectional elevation through the line D D of Fig. 9 while Fig. 14 is a similar view through the line E E of the same figure. Fig. 15 is a detail view of one of the transmitter contacts. Fig. 16 is a diagrammatic view of a method of connecting up the transmitter contacts, and Fig. 17 is a diagrammatic view of the transmitter circuits. Fig. 18 is a diagrammatic view of the printing circuit. Fig. 19 is a diagrammatic view of the receiver and transmitter circuit.

The tape after being perforated in the manner hereinbefore indicated is transferred to a circuit or contact maker the construction and operation of which will now be described.

According to one form as illustrated in Figs 1 to 7, I provide a baseplate, 40, of circular form having a path, 41, for the perforated tape extending across its upper surface. steel rods, 43, is rigidly fixed to the center of the base plate, and is so arranged that the lower extremities of the rods rest on the upper surface of the perforated tape. The upper extremities of the rods are L shaped as shown in Fig. 7 and rest on a rectangular frame, 44, slidably mounted on the vertical frame, 42, which rectangular frame is actuated so as to raise the rods by links, 45, attached to lever, 46; the motion of the links, 45, being limited in a vertical direction, by a pin, 47, fixed in the vertical frame and sliding in a slot, 48, formed in the link, 45. The levers, 46, have one of their ends pivoted at 49 while the other is adapted to engage with a cam wheel, 50, the rotation of which causes the rectangular frame, 44, to raise the rods, 43, from contact with the perforated tape and allows another signal to be brought opposite to the lower extremities of the rods.

It will be understood that the position of the rods, with respect to the perforated tape corresponds to the arrangement of the perforations i. e. if the perforations are arranged transversely to the length of the tape the rods of the circuit maker must be similarly disposed but if the perforations occupy a staggered position the rods of the circuit maker must be arranged to correspond. Feed rolls are situated conveniently to the vertical frame, 42, the spindle of the lower roll, 52, being mounted in bearings, 53, and carrying the cam wheels, 50, before mentioned.

The roll, 52, is provided at its ends with teeth, 54, which mesh with the perforations previously punched in the tape for feed purposes and a so with teeth, 55, formed on the upper feed roller, 51. The upper feed roll is suspended by links, 56, attached to a shaft, 57, rotatably mounted in the frame, 42, the shaft, 57, being provided with a tooth or projection, 58, which is adapted to be engaged by the arm, 59, of a lever, 60. The lever, 60, is pivotally mounted on a bearing, 61, fixed to the frame, 42, and is provided with a projection, 62 which engages with a corresponding projection, 63, attached to the slidably mounted rectangular frame, 44, so that on operating the lever 60, the projection 59, en-

4 gages with the projection, 58, causing rotation of the shaft, 57, whereby the roller, 51, is raised from contact with the roller, 52 simultaneously with this operation the projection, 62, engages with the projection, 63, and the frame, 44, being thereby moved in a vertical direction, the rods 43, are raised out of contact with the perforated tape. Springs, 64, fixed to the frame, 42, and resting on the links, 56, cause the upper roller to be re- A vertical frame, 42, supporting nine turned to its operative position on the release of the lever, 60. On each side of the frame, 42, electro magnets 65, see Fig. 1, are disposed, the armatures, 66,. of which are attached to levers, 67, rotatably mounted in the bearings, 68, one end of which lever is attached to a spring, 69, Fig. 2, while the other actuates a rod, 70, having a frame, 71 (Fig. 6) integrally formed at its lower-end. In the frame, 71, pawls, 72, are arranged which are held in contact with the teeth of a ratchet wheel, 73, by means of springs, 74. The pawls, 72, are so disposed with respect to the ratchet wheel, 73, that at each reciprocation of the armature bar the ratchet wheel is rotated through the distance of one tooth. Guide plates, 75, fixed to the base plate serve to maintain the frame, 71', in its correct position with respect to the ratchet wheels, 73. In order to insure that the feed rolls shall move through the same distance for each movement of the armature bar detents, 76, are formed integrally with the frame, 71, which detents engage at the termination of each movement of the armature bar, with the teeth of non-return wheels, 77, fixed on the lower feed roll spindle and thereby prevents further rotation of the feed rolls.

Contact levers, 78, Fig. 1, are arranged radially about the rods, 43, and are pivotally mounted on bearings, 80, supported on the standards, 81, one end of the levers, 78, rests on the L shaped heads of the rods, 43, being caused to follow the movements of the rod by the tension of the spring, 82; guides 83, being also provided on the top of the frame, 42, for the heads of the rods and the lever ends. The other ends of the levers make contact with spring contacts, 84, conveniently disposed with respect thereto the electrical continuity of the arm being interrupted at 85, so that the circuit from the termlnal, 86, to the spring contact, 84, is completed by way of the binding screw, 39, and the insulated part of the lever, 78.

The operation of the circuit maker is as follows: To insert the tape the lever, 60, is operated which causes the rods, 43, to be raised along with the upper feed roller, 51. The tape is then inserted below the rods, 43, and between the feed rolls with the guide perforations on the edges of the tape intermeshing with the teeth of the lower feed roll. The lever, 60, is then released and the spring, 64, Fig. 5, causes the necessary pressure between the rollers to grip the tape while the tension on the springs, 82, Fig. 3, causes the lower ends of the rods, 43, to be pressed lightly on the upper surface of the tape. As there are only two perforations for each signal (excluding the perforations for feed purposes) when a signal is directly opposite the lower ends of the rods, 43, it will be obvious that two of the rods will enter the perforations and descend, which motion tilts the contact levers, 78, resting thereon, Fig. 3, so as to complete the circuit between the terminal, 86, and the spring contact, 84, in the corresponding circuits. The current passing through the circuits so completed causes the transmitting instrument to be actuated in a manner to be described hereafter. After the operation of printing a letter at the receiver is completed a momentary impulse is automatically transmitted to the electro magnets, 65, Fig. 1, which causes the lever, 67, to move. This motion causes the rotation of the feed rolls through the exact distance required to bring another signal underneath the rods and simultaneously therewith lifts the rods from contact with the tape and allows them to descend when the neXt signal is in position.

The current from the circuit maker passes to a transmitter of any suitable type.

In constructing a transmitter according to one modification as illustrated in Figs. 9 to 19 I provide a shaft, 87, rotatably mounted in the bearings, 88, fixed to a base, 89, to which shaft the motive power is applied either directly or through suitable gearing. To one end of this shaft a ratchet wheel, 90, is rigidly attached having a recess, 91, concentric with its axis formed on its plane surface and adapted to act as a bearing for one end of a shaft 92, the other end of which is journaled in a bracket, 93, attached to the standard, 94. In this recess a pad of soft fibrous material, 136, saturated with oil is preferably inserted which supplies the necessary frictional contact between the ratchet wheel and a disk, 95, rigidly attached to one end of the shaft, 92, the amount of which friction may be adjusted by operating a screw, 96, by the rotation of which the shaft, 92, is moved endwise, and the disk is pressed against the pad. Acranked piece, 97, rigidly attached to a sleeve, 98, rotatably mounted on the shaft, 92, actuates a pawl, 99, engaging with the ratchet wheel, 90, in such a manner that when the sleeve, 98, is prevented from rotating the frictional contact between the ratchet wheel, 90, and the disk, 95, causes the disengagement of the pawl, 99, and the ratchet wheel, 90, by mechanism similar to that set forth in my British Patent specification No. 12215 of 1884. An interrupting wheel, 100, having half the number of teeth that there are signals to be transmitted is rigidly fixed to the shaft, 92, the brushes, 101, (Fig. 11) for which are mounted on a bracket, 102 only one of the brushes being used at a time. The sleeve, 98, is connected to a sleeve, 103, by rods, 109, disposed on each side of the shaft, 92, so that the sleeves rotate as one mass on the shaft. Disks, 104 and 105, are slidably mounted on the rods, 109, and the shaft, 92, and are rigidly connected to detents, 106, 107, by rods, 108, and

base, 89, and have their armatures, 114, and

115, attached to one end of the levers, 116, and 117, rotatably mounted in bearings, 118 and 119, the other ends of the levers being adapted to engage with the disks, 104, and

105, in such a manner as to permit of the rotation of the disks. 107, are adapted to engage with the teeth of a crown wheel, 110, attached to the standard, 94, having contacts, 111, of the same number as there are keys on the keyboard, in this case thirty, disposed concentrically with the shaft, 92. Contact segments, 120, are ranged on the standard, 94, (Fig. 12) and insulated from the contact, 111, are also concentrically disposed with reference to the shaft, 92, the arms, 121, and 122, being adapted to brush over the contacts, 111, and the arm, 123, over the contacts, 120. The contacts, 111, are of the stepped type as shown in Fig. 15 and are so arranged that adjacent contacts are brushed by the arms, 121, and 122, alternately, the magnet, 112 or 113, being energized according to the arm by which the circuit is completed. The arms, 121, 122, and 123, are connected to slip rings, 124, 125, and 126 formed on the sleeve, 103, the connections between the slip rings and their respective contact arms being kept in sulated from one another. The current to the slip rings is led by the brushes, 127. To the shaft 92, a spring contact, 128, is fixed which is adapted to make contact with another contact, 152, fixed to an insulated ring, 129. The ring, 129, is fastened to the sleeve, 98, by means of a screw, 130, and carries thereon a ratchet wheel, 131, with which a pawl, 132, mounted on a bracket, 133, engages so as to prevent the detents, 106 and 107, slipping out of contact with the crown wheel, 110. A contact ring, 134, which is electrically connected to the contact, 128, before mentioned is also mounted on the sleeve, 98, being supplied with current from a brush, 135. When one of the detents, 106 or 107, has been forced into engagement with the crown wheel by the energization of one of the electro-magnets, 112 or 113, the rotation of the'sleeve, 98, is thereby stopped which causes as before described the release of the pawl, 99. -The frictional resistance between the pad, 136, and the disk, 95, causes the shaft, 92, to slightly overrun the sleeve, and consequently the contact which is fastened to the shaft, 92, completes the circuit from the brush, 135, to the brush, 137, the current flowing therein passing along the printing circuit, and actuating the printing platen of the receiving instrument.

The transmitter circuits are shown diagrammatically in Figs. 16 and 17, the trans- The detents, 106 and If mitter contacts, in the latter figure being Y arranged horizontally for the sake of clearness. The terminals, 86, of the circuit maker are connected together in series while the leads from the spring contacts, 84, are connected directly to the transmitter terminals, 138. The contacts, 111, of the transmitter are connected in the manner shown in Fig. 16. As the contact arms, 121, and 122, are arranged at an angle of 180 to the arm, 123, it follows that the circuits closed by the descent of any two rods in the circuit maker must lead through diametrically opposite contacts. In the method illustrated I connect the lead from the first of the terminals 138, to the longest of the inner contact segment, 120, and as the number of different combinations which the first contact can make with the remaining contacts is eight, the remainder of the terminals, 138, are connected to contacts arranged diametrically opposite to the segment connected to the first terminal. This is indicated in the diagram by the small numerals which denote the terminals to which the several contacts are connected. The next longest inner contact segment is connected to the second terminals as shown by the dotted lines which indicate the leads to the inner segment, 120, while the diametrically opposite outer contacts are connected to the remaining seven terminals. The other connections are made in a similar manner, the leads from the contacts which are connected to the same terminals being preferably arranged in the manner indicated. It will thus be seen that for every signal the circuit from the brushes will be completed or made by way of an inner segment and a diametrically opposite outer contact.

The operation of the transmitter will next be described.

he shaft is rotated by a motor either directly or through gearing and carries round with it the interrupting wheel, 100, when the pawl, 99, is in engagement with the ratchet wheel, 90. A type wheel on the receiving instrument is caused to rotate synchronously with the wheel, 100, the current being lead thereto by the brushes, 101. When a signal comes underneath the rods of the circuit maker, two of the contacts are consequently closed and the revolving contact arms, 121, and 123, on coming opposite to the contacts corresponding to the signal transmitted cause the current from the battery, 141, (Fig. 17 to pass through the slip ring, 126, to the inner row of contacts, 120, by way of the contact arm, 123; thence through one of the closed contacts of the circuit maker along the lead, 139, through the other closed contact of the circuit maker to the outer row of contacts, 111, and returning to the battery, 1 11, by way of contact arm, 121, slip ring, 12 1-, and electro-magnet, 113,

the latter of which is energized. The energization of the magnet, 113, causes the detent 107, to engage with the crown wheel, 110, the disengagement of the pawl, 99, be ing effected by the continued rotation of the shaft, 87. The engagement of the detent, 107, causes the stoppage of the wheel, 100 and also that of the synchronously running type wheel so that the same letter is opposite the printing platen of the receiving instrument as that which was signaled from the transmitter. The circuit through the brushes, 135, and 137, Fig. 10, is also completed by the continued rotation of the shaft, 87, and causes an impulse to be transmitted to the receiver for operating the printing platen. On the transmission of the neXt signal the operation detent is disengaged from the crown wheel, and the pawl, 99, thrown into gear which causes the shaft, 92, to revolve as before described. This circuit which I call the printing circuit to differentiate it from the type circuit, i. e. (the circuit by which the current is conveyed from the interrupting wheel, 100, to the type wheel of the receiving instrument) is arranged according to one method as shown diagrammatically in Fig. 18. The tape of the receiving instrument indicated by a dotted line is suitably mounted on the pivoted arm, 153, of the receiving instrument which is caused to be pressed against the type wheel, 154, on the energization of the electromagnet, 155. When the circuit is closed through the brushes, 135, and 137, in the manner described, an impulse is transmitted to the magnet, 155, from a battery, 156, or other source of current which impulse causes the electromagnet, 155, to be energized and the tape of the receiving instrument to be pressed against the type wheel, 154, so as to print the letter corresponding to the signal transmitted. The magnet, 65, is also arranged on the same circuit its action being retarded in a well known manner so that it comes into operation after the impression of the letter on the tape of the receiving instru ment. The energization of the magnet, 65, causes the tape of the circuit maker to be fed forward and the next signal to be transmitted in the manner hereinbefore described. l/Vhen the transmitter circuit is completed through the arm, 122, instead of the arm, 121, a similar path is provided for the current through the slip ring, 124, the only difference being that the magnet, 112, is energized and the detent, 106, is operated and causes the stoppage of the sleeve, 98.

In Fig. 19 I have shown a diagrammatic view of the type circuit. The interrupting wheel, 100, is connected to the electromagnet, 156, of the receiver element which may preferably be of the step-by-step type the current being led thereto by means of one of the brushes 101, which is joined to one of the Ill poles of a battery or other source of current, the other pole of the battery being earthed. As the wheel, 100, revolves the circuit is alternately made and broken, each make and each break of the circuit causing the electro-magnet, 156, to operate the ratchet arm, 157, so as to rotate the type wheel, 154, from one letter to the next, in any known manner.

When the interrupting wheel, 100, is automatically stopped in the manner herein-' before described the type wheel, 154, is also stopped at a letter or the like corresponding to the operative code symbol on the perforated tape which letter or the like is printed at the receiver and immediately thereafter the neXt code symbol is forwarded to its operative position in the circuit maker, the above operation being carried out automatically until the whole message has been transmitted.

Although the above apparatus has been described with reference to currents of one polarity it may be adapted to currents of alternating polarity also.

In the above system I arrange relays or other equivalent devices where necessary on the circuits.

It will be evident that by my invention the rate of transmission will be greatly expedited as after the tape has been perforated the transmission takes place automatically thereby dispensing with the aid of skilled operators while the method of arranging the perforations transversely to the length of the tape permits of the transmission of a complete letter or signal on each reciprocation of the feed magnet levers without unduly increasing the breadth of the tape.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. In a type rinting telegraph system the combination 0 a plurality of electrical circuits; intermittently moving means for carrying type inone of said electrical circuits; printing means in another of said electrical circuits together with means in said second mentioned circuit for controlling said intermittently moving type means.

2. In a type printing telegraph system the combination of a plurality of electrical circuits, one or more intermittently moving type wheels actuated from one of said electrical circuits, printing means in another of said electrical circuits, together with means in said second mentioned circuit for controlling the movement of said type wheel.

3. In a type printing telegraph system, the combination of a code symbol registering element; means operated by code symbols on said element for determining characters on the receiver element; means for printing said determined characters; means for forwarding said code symbol registering element; and an electrical circuit in which said printing means and said forwarding means are located.

4. In a type printing telegraph system, the combination of means for carrying type; means for intermittently moving said type carrying means; and means for determining adjacently disposed type characters on said type carrying means, one immediately after the other, said determining means including a plurality of simultaneously operative contacts.

5. In a type printing telegraph system the combination of means for carrying type, means for intermittently moving said type carrying means, and means for automatically determining adjacently disposed type characters on said type carrying means, one immediately after the other, said determining means including a plurality of simultaneously operative contacts.

6. In a type printing telegraph system the combination of a type wheel, means for intermittently moving said type wheel and means for determining adjacently disposed type characters on said type wheel during one revolution thereof, said determining means including a plurality of simultaneously operative contacts.

7. In a type printing telegraph system the combination of a type wheel, means for intermittently moving said type wheel and means for automatically determining adjacently disposed type characters on said type wheel during one revolution thereof said determining means including a plurality of simultaneously operative contacts.

8. In a type printing telegraph system, the combination of means for carrying type, means for intermittently moving said type carrying means, means for determining adjacently disposed type characters on said type carrying means, one immediately after the other, said determining means including a plurality of simultaneously operative contacts and means for printing said determined type characters.

9. In a type printing telegraph system the combination of means for carrying type, means for intermittently moving said type carrying means and means for automatically determining adjacently disposed characters on said type carrying means, one immediately after the other, said determining means including a plurality of simultaneously operative contacts and means for antomatically printing said determined type characters.

10. In a type printing telegraph system the combination of a current interrupting rotating member, a ty e wheel, means for moving said type whee synchronously with said interrupting member, means for controlling the rotation of said interrupting member so as to determine adjacently disposed characters on said type wheel during one revolution thereof said means including a plurality of simultaneously operative contacts.

11, In a type printing telegraph system the combination of a plurality of contacts, a type wheel, means for intermittently rotating said type wheel, means for closing a certain plurality of said contacts simultaneously and means coacting with said closing means for arresting the rotation of said type wheel at adjacently disposed characters during one revolution thereof corresponding to the combination of contacts so closed.

12. In a type printing telegraph system the combination of a plurality of contacts, a type wheel, means for intermittently rotating said type wheel, means for closing a certain plurality of said contacts simultaneously, means coacting with said closing means for arresting the rotation of said type wheel during one revolution at adjacently disposed characters corresponding to the combination of contacts so closed means for printing said characters and means for automatically opening said closed contacts and means for automatically closing a plurality of said contacts corresponding to the next character to be printed.

13. In a type printing telegraph system the combination of a type wheel, means for intermittently rotating said type wheel, a plurality of contacts, a code symbol registering element for closing a certain plurality of said contacts simultaneously, means coacting with said closed contacts for arresting the rotation of said type wheel during one revolution at adj acently disposed characters corresponding to the combination of said closed contacts, means for printing said character and means for automatically forwarding said registering element.

14. In a type printing telegraph system, the combination of a plurality of contacts; a current interrupter, a type wheel, means for rotating said type wheel in synchronism with said current interrupter; means for simultaneously closing a plurality of said contacts means co-acting with the simultaneous closure of a plurality of said contacts for arresting the motion of said current interrupter and said type wheel during one revolution at adjacently disposed type characters corresponding to the combination of the said 0 osed contacts and a printing device at the type wheel automatically actuated on stoppage of said type wheel.

15. In a type printing telegraph system the combination of a motor, an interrupting device detachably clutched to said motor, a type wheel rotating in step with said current interrupter, a set of contact making devices co-aXially arranged with respect to said interrupting device, a set of contact making devices less in number than said first menl tioned set, means cooperating with both said sets of contacts for arresting the motion of said interrupting member and said type wheel at a point corresponding to the combination of the operative members of the said second set of contacts, and meansfor automatically unclutching said interrupting device on its stoppage; means for automatically clutching said interrupting device on withdrawing said arresting means; automatic means for actuating a printing device on the stoppage of said type wheel and means 00- acting with said automatic means for closing certain of second mentioned set of contacts.

16. In a type printing telegraph system, the combination of a motor an interrupting device detachably clutched to said motor; a type wheel, means for rotating said type wheel synchronously with said interrupting device; means co-acting with the simultaneous operation of a lurality of code symbols on a registering e ement for arresting the type wheel during one revolution at adjacently disposed characters corresponding to the operative code symbol; a printing device actuated on the stoppage of said interrupting device and means for automatically forwarding the code symbol registering element on the actuation of said printing device.

17. In a type printing telegraph system the combination of a code symbol registering element; a plurality of contacts operated by the code symbols on said registering element; means co-acting with said contacts for determining characters at the receiver element, means for printing said determined characters means for forwarding said code symbol registering element together with an electrical circuit in which said printing and said forwarding means are located.

18. In a type printing telegraph system the combination of means for carrying type at the receiver element; a registering element actuating said type carrying means; forwarding means for said registering element; printing means for said type carrying means and an electrical circuit in which said printing means and said forwarding means arelocated.

19. In a type printing telegraph system the combination of intermittent y moving means for carrying type at the receiver element, a code symbol registering element controlling said type carrying means, printing means at said receiver element, forwarding means for said code symbol registering element and an electrical circuit in which said printing means and said forwarding means are located.

20. In a type printing telegraph system the combination of an intermittently moving type wheel at the receiver element, a code symbol registering element controlling said intermittently moving type wheel; printing means at said receiver element; forwarding means for said code symbol registering element, and an electrical circuit in which said printing means and said forwarding means are located.

21. In a type printing telegraph system the combination of a current interrupting device, type carrying means in synchronism with said interrupting device, a code symbol registering element controlling said interrupting device, printing means for said type carrying means, forwarding means for said code symbol registering element and an elec trical circuit in which said forwarding means and said printing means are located.

22. In a type printing telegraph system thec0mbinationof a motor; a current interrupting device detachably clutched to said motor; type carrying means in synchronism with said interrupting device; a code symbol registering element controlling said interrupting device; printing means for said type carrying means; forwarding means for said code symbol registering element and an electrical circuit in which said forwarding means and said printing means are located.

In testimony whereof I have signed my 25 name to this specification in the presence of two subscribing witnesses.

FREDERICK HERBERT WILLIAM HIGGINS.

Witnesses:

A. W. CoLLrs, THOMAS J. LEAFORD.

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