US1295797A - Telegraph type-writer. - Google Patents

Description

H. O. RUGH.

TELEGRAPH TYPE WRITER.

APPLICATION FILED DEC. 14, 1914. RENEWED OCT. 27, 1917.

1,295,797. Patented Feb. 25; 1919.

71 MQW. 6%

UNITED STATES PATENT OFFICE.

HARRY O. RUGH, OF

CHICAGO, ILLINOIS, ASSIGNOR To RAILWAi ELECTRIC MANUFAC- TUBING COMPANY, or CHICAGO, ILLINOIS.

TELEGRAPH TYPE-WRITER.

Specification of Letters Patent.

Patented Feb. 25, 1919.

Application filed December 11, 1914, Serial No. 876,680. Renewed October 27, 1917. Serial No. 198,877.

To all whom it may concern: 1

Be it known that I, HARRY O. RUGH, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Telegraph Type- Writers, of which the following is a full, clear, concise, and exact description, reference being had to the accompanging drawin forming a part of this speci cation.

fly invention relates to telegraph typewriters and has for its object the provision of an improved instrument of this character by virtue of which it. is possible to control the printing of letters through the agency of remotely controlled mechanism.

My invention contemplates the provision of such an instrument and system in which a single-electrical circuit is needed between the point of control and the point where the printing takes place. invention further contemplates the provision of an lnstrument of this character in which there need not be any continuously operable element, to cause the selection of the type, but in which instrumentalities are started in operation with the selection of each letter which control the selection'of the particular letter desired and which instrumentalities are normally in their quiescent condition.

-I will explain one form which my invention 'may take more in detail by referring to the accompanying drawing illustrating diagrammatically one embodiment thereof in which Figure 1 is a diagrammatic representation of a system and instrument constructed and arranged in accordance with my invention, and

Fig. 2 is a front view of the type carrier. My improved system contemplates a sendingstation A ,and a receiving station B, of which receiving stations of course there may be more if desired, as readily apparent. Two

line wires respectively the line wires 1 and 2 unite the sending and receiving stations,

there being provided at the sending station a plurality of disks 3 and 4 adapted to establish contact so as to energize the line wires 1 and 2 periodically in accordance with certain predetermined relations as will appear later from a discussion of the substation device. If the device is used to print letters, then of course there would be as many commutator elements such as 3 as there may be mit.

to the actuation of the hammer 15.

terminal of battery 8 and which has two back contacts 9 and 10 respectively and one front contact 11.

In general it may be said that my device contemplates the selection and actuation of a type carrier 12, which type-carrier is more clearly shown in Fig. 2 and which has thereon various horizontal and vertical rows of letters or figures such as it is desired to imprint upon the aper 13, movable by the platen or roller 14. My improved device contemplates the elevation and rotation of the type carrier 12 into such position that the predetermined letteris in printing position so that it may be printed upon the paper 13 when the hammer'15 momentarily actu- I ates said type carrier. The type carrieris flexibly carried on a spindle 16 by means of the flexible extension 17 so as to permit a slight.swinging of the type carrier in answer The spindle 16 has what I might call a vertical rack-18 and a horizontal rack 19. The horizontal rack 19 is used in connectionwith a pawl 20 controlled by the rotary magnet 21 to rotate the spindle 16 in accordance with i the number of impulses given to the rotary magnet 21. The vertical rack 18 due to stepup pawl'22 causes an elevation of the spindle 16 in accordance with the number of impulses received by the vertical magnet 23 controlling this pawl 22. A holding magnet 24 controlling the two pawls 25 and 26 respectively controls the insertion of these pawls respectively into the'racks 19 and 18 during the operation of the device so as to hold the spindle in a position set by the magnets 21 and 23, but to permit its restoration after the letter has been printed. It will be understood that by means of this vertical and rotary motion it is possible to place any letter as thus found upon the type carrier 12 in printing position.

Now my invention contemplates that an impulse be transmitted from the central station, followed by a very short interruption of this impulse, to be followed by a continuation of the current impulse, after which the impulse entirely ceases. Now these two impulses are used respectively to control the rotary and vertical movement of the spindle 16 and the amount of rotary, or vertical movement depends upon the length of each one of these-impulses. In orderto transform the impulse transmitted from the central station into a series'of impulses depending upon the length of the rimal impulse, I provide a vibrating magnet 27 which controls a vibrating arm 28 whose 'period of vibration is controlled by a weight 29. This vibrating-rod 28 is electrically connected with the positive terminal of the battery 8 as readily apparent and has one front contact 30 and two back contacts 31 and 32 respectively.

In general it may be stated that when the impulse is received at the substation this vibrating device begins to vibrate and vibrates a given number of times depending upon the length of the primal impulse transmitted from the sending or central station A. The number of impulses then'operate either the rotary or vertical magnet as will presently appear and thereby cause a proper setting of the type carrier 12. The general operation of the device it is thought will thus be outlined suiiiciently so that the details of the arrangement may now be gone into.

In order to actuate the striker 15, I employ a striking magnet 33 working in conjunction with a battery 34. There is also provided a carriage feed relay 35. I furthermore employ a switching relay 36 which controls the connection of either the magnet 21 or the magnet 23 into the vibrating circuit. I also provide a slow acting magnet 37, which slow acting magnet controls the holding magnet 24 and initially controls the switchlng relay 36. In the illustration the parts are in their normal quiescent condition, in which case there is no current on the line wires 1 and 2. Under these conditions the line relay 6 has released its armature 7 so that its armature contacts with the back contact points 9 and 10. There is thus completed a circuit extending from the contact 9 through the striking magnet 33, the battery 34, back contact 30, vibrating arm 28, conductor 38, conductor. 39, conductor 40, to the armature 7. There is thus completed a circuit through the battery 34 and the striking magnet 33, which maintains the striker 15 against the stop 41. In this position of the striker, it does not touch the type carrier 12.

It may be pointed out right here that Whenever the striker 15 is to actuate the type carrier, that the attraction of the striker arm 42 in response to the magnet 33 causes the striker 15 to move toward the type carrier with sufficient momentum that the resilient arm 42 permits the striker to move beyond diate release thereof. For this reason the stop 41 is placed so that if the arm 42 is unbent that the striker 15 does not touch the type carrier 12. A back contact 43 is provided for the arm 42 to control the carriage feed magnet 35. Thus Whenever the striker arm 42 is retracted away from the stop41 it engages this back contact 43 which of course occurs once after each printing operation.

The armature 7 being in its retracted position not 'only maintains a circuit through the magnet 33, but also maintains a circuit through the'vibrating magnet 27 by establishing a connection around the back contact 31, which circuit can be traced from the back contact 10 to the said back contact 31 through the vibrating magnet 27 then to the negative terminal of the battery v8 and from the positive terminal of the battery 8 by way of conductor 40 to the armature 7, thus completing a circuit for the magnet'27. Thereby the vibratin rod 28 is held in its highest elevated positlon or at the limit of its outermost point of vibration so that this rod can start from one of its limiting positions, thereby immediatelyv to assume its regular period of vibration, as contra-distinguished from such an arrangementin which the arm Would have to be attracted primarily to start it in motion.

Now assume that one of the devices at the station A were to be operatedsoas to send an impulse of a given duration followed by a momentary break and then .a continuation of the. same impulse, for a iven period of time. At the initiation of t e first impulse the line relay 6 is attracted, thereby breaking the circuit through the strike magnet- 33 and also breaking the circuit for the vibrating magnet 27. The striker 15 thereupon retracts and the engagement of the.

spring carried by the arm 42 with the contact 43 causes an actuation of the, carriage feed magnet 35 to move the paper 13 one.

space. The break in the circuit through the magnet 27 permlts'the vibrating arm 28 to move from its limlting position at the right the arm 28 and the back contact 32 for purposes to presently appoear.

Before the first esta' lishment of this con- 115 toward its limiting=position on the left,

ductor 45, back contactj46, armature 47,- conductor 48, conductor 49, conductor 50,

to the negative terminal of the battery 8. The relay 36 thus attracts its two armatures 51 and-52 and establishes a holdingcircuit for itself that can be traced from the positive terminal of battery 8 via conductor 40, armature 7, contact 11, conductor 44, armature 52, front contact 53, conductor 54, conductor 55, conductor 49, conductor 50, to the negative terminal of the battery 8. The slow acting relay 37 is also energized at the same time that the relay 36 is energized but the contact between the elements 46 and 47 of course is not broken soon enough to prevent current flowing through the relay 36 suflicient to permit of its energization to complete its own holding'circuit. The circuit for the relay 37 can be traced from the positive terminal of the battery 8 via the conductor'40, armature 7, contact 11, conductor 56, relay 37, conductor 57, conductor 50, to the negative terminal of the battery 8. The-actuation of the slow acting magnet 37 closes a circuit for the holding magnet 24 so as to insert" the pawls 25 and 26 into the rack ortions of the element 16, which circuit or the magnet 24 can be traced fromv the positive terminal of the battery 8 via the conductor 39, conductor 58, magnet 24, conductor 59, front contact 60, armature 47, conductor 48, and conductors 49, 57 and 50,

to the negative terminal of the battery 8.;

These circuits through the magnets 36 and 37 are established before the elements 28 and 32 make their first electrical connection.

It will be noted that the armature 51 of the relay 36 by controlling the back contact 61 and the front contact '62 serves by the position of this armature 5:1 to control which of the two magnets 21 or 23 are electrically connected with the back contact 32. The relay 36'being energized, it will be seen that magnet 21 is first in circuit with the back contact 32. Immediately the elements 32 and 28 engage there is thus established a circuit for the magnet 21 which can be traced from the positive terminal of. the battery 8, via conductors 39 and 38, arm 28, contact 32, conductor 63, armature 51, front contact 62, conductor 64, magnet 21, and conductors 55, 49, 57, and 50, to the negative terminal of the battery 8. Each vibration of the arm 28 causes a rotary movement of one step of the spindle 16. The number of vibrations or steps depend upon the length of time that the armature 7 remains in its attracted condition. As sOOn as the predetel-mined time has expired to permit ofthe proper number of rotary impulses, a moration that while magnet 36 becomes thereby ment-ary cessation of the circuit over the line wires permits a very rapid movement of the armature 7 back and forth. This cessation is of course of such short time dudeenergized, the slow acting magnet 37 does not. Thus the holding magnet 24 remains in circuit, but the circuit through the magnet 21 is broken and shifted to the magnet 23 by virtue of the retraction of the armature 51. The restablishment of the impulse on the line circuit doesnt again energize th'erelay 36 because its primal circuit through the elements 46, 47 remains unclosed and its holding circuit through the elements 52 and 53 has been broken. This restoration of the element 7 does not energize the magnet 33 as this circuitremains unclosed at the contact point-30. The reestablishment of the impulse over the line wires continues for a suflicient length of time to permit the magnet 23 to receive the required number of impulses by way of the contact 32 to bring the proper letter into printing position. Thereupon the line circuit impulse is permanently discontinued (that is of course until the beginning of the next letter sending impulse) for a sufiicient length of time, whereupon the armature 7 is retracted. and the magnet 37 becomes deenergized, as this particular cessation of the line current is of long enough duration to permit this to take place. Thereupon the holding magnet 24' is deenergized to withdraw the pawls 25 and 26 and to permit am 100 tomatic restoration of the spindle 16 to the position shown. in Fig. 1 by virtue of the spring 65. Before this magnet 37 responds however the quick acting magnet 33 has again been energized over the circuit pre- 105 viously traced which includes the battery 34 to attract its arm 42, which by its resil-. 1ency and the momentum of the striker-impels said striker againsttthe type carrier 12 to print the selected letter.- Thereuponthe 1 restoration of the spindle 16 in. readiness for the next letter.

As will be remembered, the beginning of the next'letter sending-impulse permits re- 1 lease of the arm 42 to actuate the carriage feed magnet-35 to move the paper one space.

The operation of my improved telegraph typewriter system and substation device will thus be clear as will also'its various adaptabilities. It will of course be understood that the illustration is more or less diagrammatic as a great many difierent kinds. of apparatus would operate conformably to the rules governing the system.

Having however thus described one specific form and arrangement which my invention may take, what I claim as new and desire to secure by Letters Patent is 1. A telegraph typewriter system having a type carrier, step-by-step mechanism. including a vibrating element to control said type carrier, and remotely controlled periodically actuated means to efi'ect the actuation of said element during the actuation periods of said means to thereby vibrate said element to control said mechanism.

2. A telegraph typewriter system having a type carrier, setting mechanism including a vibrating element to control said t -pe carrier, and remotely controlled periodically actuated means to effect the actuation of sa1d element during the'actuation periods of said means to thereby vibrate said element to control said mechanism.

.3. A typewriter telegraph having a type carrier, means for imparting bi-directional movement to said type carrier, said means including 5a vibratory circuit controlling element, and remotely controlled periodically actuated means to control said element during the actuation periods of said means to thereby Vibrate said element to control said first aforesaid means.

4. A typewriter telegraph system comprising a type carrier, step-by-step mechanism to control the same, a harmonic circuit controlling element to actuate said step-by-step mechanism, and remotely controlled periodically actuated means to effect the actuation of said element during the actuation periods of said means to thereby vibrate said element to control said mechanism.

5. Atypewriter telegraph system comprising a type carrier, step-by-step mechanism to two magnets, a vibratory circuit controlling element to actuate said 'magnets, and remotely controlled means to determine the length of operation of said vibratory circuit controlling element and vibrate it only during the setting operation of said type carrier.

' 7. A typewriter telegraph system comprising a type car-rier, step-by-step mechanism to impart bi-directional movement to said type carrier, said mechanism including a pair of control magnets, a vibratory circuit controlling element selectively to actuate said magnets, and a relay to control the length of operation of said vibratory element and vibrate it only during the setting operation of said type carrier.

8. A typewriter telegraph system comprising a type carrier, step-bystep mechanism to impart bi-directional movement to said type carrier, said mechanism including a pair of control magnets, a vibratory circuit controlling element selectively to actuate said magnets, a relay to control the length of operation of said vibratory elementfand vibrate it only during the setting operation of said type carrier, a resiliently mounted striker, and electromagnetic means controlled by said relay to control'said striker. v 9. A typewriter telegraph system comprising a type carrier, step-by-step mechanism to impart bi-directional' movement to Said type carrier,-said mechanism including a pair of control magnets, a vibratory circuit controlling'element selectively to actuate said magnets, a line relay to control the length of operation of said vibratory element, a selecting relay to control the selection of the magnets aforesaid controlled by said line relay, and a slow acting holding relay controlled by said line relay.

1Q. A typewriter telegraph system comprislng a type carrier, step-by-step mechanism to impart bi-directional movement to said type carrier, said mechanism including a pair'of control magnets, a vibratory circuit controlling element selectively to actuate said magnets, a line relay to control the length of operation of said vibratory element, a selecting relay to control the selection of the magnets aforesaid controlled by said line relay, and a slow acting holding relay controlled by said lline relay, said slow acting relay initially controlling said selecting relay.

11. A typewriter telegraph system comprising a type carrier, .step-by-step mechanism to impart bi-directional movement to said type carrier, said mechanism includ'ng' a pair of control magnets, a vibratory ircuit controlling element selectively to actuat said magnets, a relay to control the length of operation of said vibratory element, and vibrate it only during the setting operation of said type carrier, a'resiliently mounted striker, -electromagnetic means controlled by said relay to control said striker, and a carriage feed controlled by said electromagnetic means.

12. A typewriter telegraph system comprising a type carrier, a step-by-step mechanism to impart bi-di'rectional movement to said type carrier, said'mechanism including a pair of control magnets, a vibratory circuit controlling element selectively to actuate said magnets, a line relay to control the length of operation of said vibratory element, a selecting relay to control the selection of the magnets aforesaid 'controlled by said line relay, and a slow acting holding relay controlled by said line relay, said slow acting relay initlally controlling said selecting relay, said selecting relay having means to establish a holding circuit for itself.

13. A'typewriter telegraph system comprising a type carrier, setting mechanism to impart bi-directional movement to said type carrier, said mechanism including a pair of control magnets, a, vibratory circuit controlling element to selectively actuate said magnets, and a relay to control the association of one or the other of said magnets with said 10 vibratory element.

In witness whereof I hereunto subscribe my name this 19th day of November, A. D.

, HARRY O. RUGH.

Witnesses:

MAX W. ZABEL, HAZEL A. J ONES.

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