US1114049A - Signaling system. - Google Patents

Description

H. 0. HUGH.

SIGNALING SYSTEM.

APPLICATION FILED JAN. 20, 1911.

1, 1 14,049. Patented Oct. 20, 1914.

3 BHEBTS'SHEET 1.

@2739 Q W 29 MW- M THE NORRIS PETERS C0,. FHOTD-LITHQ, WASHINGTON. D4 C.

H. 0. RUGHQ SIGNALING SYSTEM.

APPLICATION FILED JAN. 20, 1911.

1,1 14,049. v I Patented Oct. 20, 1914.

3 SHEETS-SHEET 2.

THE NORRIS PETERS C0.,PHOTD-LITH.1. WASHINGTON. D 1;

H. 0. HUGE.

SIGNALING SYSTEM.

APPLICATION FILED JAN. 20, 1911.

1, 1 14,049. Patented Oct. 2-0, 1914.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

HARRY 0. RUGH, or SANDWICH, ILLrNors, emma, BY Muslin Assrelv vrnn'rs, To HALL swrrcn & SIGNAL COMPANY, A oonronerronyor MAINE.

SIGNALING SYSTEMQ Specification of Letters lfatcnte Pat nted Oct. 20, 1914.

Original application filed September 1, 1910, Serial No. 580,068. Divided and this application filed January 20,1911. Serial No. 603,679. y I

To all whom it may concern: I

Be it known that I, HARRY O. RUGH, a citizen of the United States, residing at Sandwich, in the county of Dekalb and State of Illinois, have invented a certain new and useful Improvement in Signaling Systems, of which the following is a full,"

clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to signaling systems and is a divisional application of a system set forth in my application Serial No. 580,068, filed Sept. 1, 1910. In my said copending application I show a calling device the same as set forth herein and also show it in combination with a system as setforth herein but I confine myself in the said copending application to claims other thanthe claims directed to the system as a whole, which system claims are set forth in the present application.

The system under consideration contemplates step-bystep signaling-service and is of use particularly in connection with substation signal receiving devices in which a restraining element for the step-by-step element is normally not in engagement with the step-by-step element.

The invention contemplates a system in which a call box is used which is moved in one direction during its setting operation and which sends a predetermined number of impulses during its signal sending operation upon its reverse movement. In the system under consideration I require a long impulse initially so that the restraining element may be properly actuated to engage the teeth of the step-by-step element and thereafter a plurality of short impulses to properly set the substation devicesin position to call a pre-determined station. i

It has usually been customary to arrange the call box so that a long impulse is sent during its reverse movement primarilv to the sending of the short impulses. As the efiiciency of the system dependsupon the shortness of thetime required to make the call it is essential that this long initial im pulse be eliminated during the reverse move ment if possible and my invention contemplates a system of substation devices and a call box so arranged that the impulse which places the restraining element iII'QQ associaso that the reverse movement of the call box may be taken up entirely with the sending of impulses, thus to expedite the time of sending a call.

by reference to in which: y y y Figure 1 diagrammatically sets forth a signaling circuit with the substations conthe accompanying drawing nected; Fig. 2 is a sectional view of the call box; Fig. 3 is a view of the cover of thecall box showing parts of the apparatus; Fig. 4 :is a similar view to Fig. 3sl1owin'g the apparatus'in an alternative position, and 'zfFiga 5 is a diagrammatic view of circuit arrangements ofthe call box. 1 I i The system contemplates line wires 1 and 2 to which substations A, B and C, Fig. 1, .areconnected. The substation devices in- ;clude a step-bystepelement 3 having an arm 4 adapted when in the proper. position to engage a spring 5 and i'f'the contact is maintained long enoughtherebyto actuate a signal 6 through the agency of a battery 7. The. arms an the diflerent stations are in diiierent angular positions so that the different stations respond to different numbers of impulses. Whenthe arm 4 passes the spring 5 of a given station momentarily when a station having a greater number of 10 is actuated. A second electromagnet 11 having an actuating. coil 12 controls an armature 13. The armature 13 has a restraining pawl 14 which may also engage th'eteeth of the element? A spring 15 normallyholds the armature 13 in an elevated position so that the pawl 14: is removed from the teethcf the element 3. When in this position the pawl 14 likewise has raised the.

pawl 8 outof the teeth'of the element 3 and a spring 15 may restore this element. to nor I will explain my invention more in detail malagain'st thelstop 16. The pawl 8 is free 3 to slide overthe pawl 14. The electromag net 11 is slow actingby virtue of a short circuiting coil 17 so thatthe' short rapid im-' pulses which actuate the electromagnet 10 to step-up the element 3 will not permit release of the armature 13 but said armature remains in an attracted position until shortly after the impulses cease entirely. The electromagnet 11 being slow acting requires a rather long impulse initially to permit it to attract its armature 13, whereby to bring the pawls 8 and 14: into engagement with theteeth of the element 3.

My invention contemplates the operation of a system of this character with a calling device so, arranged that the long impulse necessary to bring the pawls 3 and 1 1- into engagement with the teeth of the element 3 may be sent during the setting operation of thecall box which will now be described so that the reverse movement of the operating and- 4, 1 show a call box 18 having a cover 19, inwhich cover ashaft 20 is mounted. On theoutside 'face of the box, a dial 21 is provided having holes corresponding to the number of stations connected to the line. A handle 22 has a projection 23, which projection maybe inserted into any of tlie openings of the dia l21. After the insertion of the handle in the proper position, the dial 21 is rotated in a clockwise direction, therebyrotating an impulse wheel 23 of Figs. 3, 4 and 5 in what will appear in these illustrat'ions as a contra-clockwise direction, the

in' 'my said copending application.

illustrations of Figs. 3, 4; and 5 being rear views. A clock mechanism. 24 then serves t0-;rotate the elements 21 and 23 back to their normal positions so that stops 25 and 26 may engage, all as more clearly set forth Now when the impulse element 23, referring to Figs. 3, 4=and 5, moves in a contra-clockwise direction it moves a disk 27 in the direction in which it is movingas said disk 27 .is frictionally engaged by said element 23. The disk 27 ismounted on a spring 28 and the initial movement of the element 23 in a contra-clockwise direction brings the spring 28 into engagement with the spring 29, which contact remains closed until the clockwork rotates the element 23 in a clockwise direction backto its initial position, which initial position is shown in Figs. 4: and 5. Thus during this setting operation of the-element 23contact is closed between springs 28 and29 and we have a circuit from spring .28to conductor 30, conductor 31, electromagnet 32, battery 33, conductor 34 and spring '29 which is closed with spring 28nxThus the armature 35 of the magnet 32 remains attractedzduring the setting operation; and :onelong impulse is transmitted over theline wires which attracts'all of the electromagnets 10 and 11, thus bringing the pawls o and 14- into engagement with the teeth of the step up wheel 3. A spring 36 is so arranged as normally not to contact with the element 23 except when it is in juxtaposition to the teeth 37 of said element or the elongated tooth 33. During the setting operation the tooth 38 engages the spring 36 and also as many of the teeth 37 as will later be needed to send the necessary impulses to call the pie-determined station. But this contacting of the spring 36 and the element 23 during the setting operation has no further effect on the magnet 32 as the circuit through the same and the battery 33 is already closed by the springs 28 and 29. Immediately the reverse movement of the element 23 occurs, however, the frictional movement between it and the disk 27 destroys the contact between the springs 28 and 29 and the magnet 32 is thereupon responsive to the connection or disconnection established between the spring 36 and the element 23 by virtue of its periodic engagement with the teeth 37, thus to send rapid impulses over the line wires 1 and 2 through the agency of the electromagnet 32 until the desired station has been reached, at which time the tooth 38 engages the spring 36 and a long impulse transmitted over the line wires which holds elements a and 5 in contact a sufficient length of time to actuate the signal 6. The element 23 finally comes to rest when stops 25 and 26 engage and this position of rest is the position occupied in Figs. 4 and 5 when the said spring 36 is free from engagement with the element 23.

My invention further contemplates means whereby after one station is called, succeeding stations may be called without first restoring the stcp-by-stcp elements 3 to normal. These means include a push button actuating a lever 54 to place it in a position whereby it engages a pin 55 mounted upon the reverse side of the impulse element lVhen the lever arm 54 thus engages the pin 55 as clearly shown in dotted lines in Fig. 3, the impulse element 23 instead of being stopped in the normal position indicated in Fig. 4t is stopped in the position indicated in Fig. 3 when the spring 36 has moved upon the tooth 38 just a suliicient distance equal to ELPPI'OXlDltItQlY onehalf the width of a tooth 37. In this condition it is apparent that contact is maintained through the relay 32 and current is maintained on the line so that the substation mechanisms remain in the position to which they were moved by the impulses transmitted from the element 23, during which time the signal of the predeterminedand called station continues to operate. Suppose that this were, for in stance, the station A which responds to a given number of impulses and it is desired.

to also call station E which responds to a 1 49 f v t a greater number of impulses and then station C which responds to a still greater number of impulses. Button 53 is actuatedand the impulse element on its return is held in the position of Fig. 3. Then if it takes, for instance, two more impulses to call station B, the finger hold 22 is set into No. 2 of the dial and again actuated and the reverse movement of the element 23 sendsthe two additional impulses and the said element is again held in the positionof Fig. 3. Then if station C is desired which'may, for in stance, respond to three more impulses than station E, the finger hold is set in No. 3 and the dial moved so that its return movement sends three impulses to call said station C.

It will thus be seen that the "system as a whole contemplates substation apparatus and a call box cooperating therewith by which the signal sending operation is accomplished during the setting operation of the call box and the actual signal transmitting is accomplished during the reverse movement of the movable element of the call box so that the shortest possible time is consumed for the sendingof a signal. The

call box and substation apparatus cooperate thereby to produce a single system having the advantages as above set forth.

Having thus particularly described one embodiment of my invention, what I claim, as new and desire to secure by Letters Patent is:

1. A signallng system havlng a signal sendmg station and signal receiving statlons all united by a common line circuit, a selective circuit closing element at each receiving station, a magnet for operating each element, and a controlling magnet for each element, a signal sending device at the central station having impulse sending mechanism adapted for aforward and reverse movement, and means associated therewith to effect the operative actuation of the controlling magnets during the forward and reverse movements of said mechanism, and effecting the operative actuation of the selector magnets during the movement of said mechanism in one. direction only.

2. A signaling system having a signal sending station and. signalreceiving stations all united by a common line circuit, a selective circuit closing element at each receiving station, a magnet for operating each fecting the operative actuation of the selector magnets during the movement of said mechanism in one dlrectlon only, sald means fect the operative actuation of the control-.

ling magnets during the forward and reverse movements of sald mechanism, and effecting the operative actuation of the selector magnets during the movement of said mechanism in one direction only, said means including a relay, a source of current forimpulse transmitting purposes, and a frictional circuit controlling element for said battery. 4. A signaling system comprising a signal sending station and substations, step by step signal receiving apparatus at each substation, holdingmeans for each step by step apparatus, and a call box at the central station adapted to be set into position to send a call for anypredetermined station and having means toicontrol the step by step apparatusto select any desired station, when returninglto normal position and also having means to control the holding means aforesaid during the setting operation of said call box in accordance with the desired substation. a

5. A signaling system comprising a signal sending station and substations, a call box at the sending station adapted to be set by hand in position to select any predetermined station, and having automatic means operable when returning to normal position afterthe said operation to select the desired station, selective signal receiving devices at each substatlonhaving means whereby said devices are inltrally placed 111 conditlon to be selected for operating under control of the said call box, and means associated with said call box during the setting operation of said call box to control the last aforesaid means. 6. A signaling system comprising a signal sending station and substations, a call box at the sending station adapted to be set by hand in position to select any predetermined station, and having automatic means operable when returning to normal position after the said operation to select the desired sta tion, step by step signal receiving devices at each substation having means whereby said devices are initially placed in condition to be selected for operating under control of the said call box, and means associated with said call box operable during the setting aforesaid means. i y

7. Ina selective signal system, the combioperation ofsaid call box to control the last nation of a main station and a plurality of I tional impulses so that the sum of the imsubstations, a main line uniting said stations, a signal at each substation, a selector at each substation controlling the signal "thereat in response to a given number of impulses onsaid line and means at the main station whereby aplurality of impulses may be impressed onsaid line and means whereby a plurality of calls may be sent successively by impressing the impulses necessary for one call, and subsequently sending addipulses for the first call and the additional impulses constitutes the subsequent calls.

In Witness whereof, I hereunto subscribe 15 my name this 16th day of January, A. D., 1911.

HARRY O. RUGH.

Witnesses:

HAZEL JONES, Or'ro M. WERMIGH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of .Patents,

' Washington, D. G.

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