US1249673A - Circuit-controlling device. - Google Patents

Description

H..0. HUGH.

CIRCUIT CONTROLLING DEVICE. APPLICATION FILED IIAR. 23. I9I4.

1,249,673. 'Patented Dee. 11, 1917.

2 SHEETS-SHEET I.

H. 0. HUGH. CIRCUIT CONTROLLING DEVICE. APPLICATION FILED IIIIII. 23. I9I4.

1,249,673; Patented 'De0.11,1917.

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HARRY O. BUGH, OF

CHICAGO, ILLINOIS, ASSIGNOR T` RAILWAY ELECTRIC MANU'- FACTURING C0., 0F CHICAGO, ILLINOIS.

CIRCUIT-CONTROLLING DEVICE..

To all 'whom it may concern.'

Be it known that I, HARRY O. RUGH, a citizen of the lUnited States, Vresiding at` Chicago, in the county of Cook and State of Illinois, have invented a certainnew and useful Improvement in Circuit-Controlling Devices, of Vwhich the following is a ful, clear, concise, and exact description, reference being had to the accompanying drawings, fprming a part of this specification.`

Iy invention relates to circuit controlling devices and is more particularlyl available for use on signaling lines although not so limited. My invention has for its object the provision of remotely controlled means for effecting a circuit change and maintaining the change without retainingl anoperated condition of the controlling portion of the means.

great use, for instance, is in its application to a train despatching` system or other conducting system along a right of way when it may be desired to effect certain circuit changes from a central station. More specifically, my invention when so applied, has been used to connect a loud talking trans-- mitter to the conducting system or train despatching system so that the operator at the central station may hear for instance when a train is passing a certain point. VThis is a very desirable condition to provide for when it is desired by the train despatcher for instance to ascertain whether the train is passing a station where there may be no night operator, or whether afreight train is having difficulty negotiating a heavy grade, finding it necessaryl to split up the train and take it over the grade in sections.

Under such conditions the train despatcher wants to be yadvised just how soon the track is clear.' These grades most usually occur between stations.

Of course, as stated, the invention is not limited to the form above described and other uses are available which will readily suggest themselves. My invention could be further applied for Vinstance in lighting the station lights and extinguishing them, thus to keep the platform illuminated at such times when trains are arriving or departing. I will describe a vform which my invention may take more particularlyI by the accompanyinff drawings, in which- Ontviewcfav circuit' con- Specication of Letters Patent.

A form in which my invention has found referring to trolling device constructed in accordance with my invention; Fig. 2 is an end view thereof; Fig. Sis a view similar to F ig. 1 showing the device in an alternate position;

Fig. l is a diagrammatic view illustrating one1 form ofi application 'of my invention, anck Y l Fig. 5 illustrates another form. Referring moreparticularly to Figs. 1, 2 and 3 I provide a base plate 1 having suitable legs 2 by means of which the device may be' suitably fastened to a wall orl to a Vcontaining box. A terminal plate 3 is provided to carry the connecting screws 1' by means of which circuit connection with the various parts off the device is effected. A bracket carrieson its upper flat plate 6 the heel plate 7' of a'relay 8. This relay has an'armatu're 9` pivotally mounted't-o the heel plate carrying la spring 10 by means of which through the agency' of' the adjustingv screw 11 the armature is retained in its-retracted position of Fig. 1. A limit screw in the form of the' adjustable screw 12 confines the rearward movement of the armature.' The armature carries a contact spring 131 adapted to e'ect circuit closure with the terminal 14 whenever the armature is in anattracted position. The armature also carries at its upper eX- tremity a rod or controlling arm 15 pivotally mounted at 16 upon the upper extremity of said armature. This arm 15- controls a pivotally mounted arm- 16 pivoted upon the left hand extremity of the horizontal portion 6 of the bracket 5. A spring 17 secured to the arm 16 tends tomove said arm against the limit stop 1S mounted upon the heel plate 7. The'arm 16 and limit stop 18l are desirably oiv non-magnetic material. An adjusting screw- 19 controls the tension ofthe spring-17. yThe arm 16' is confined in itsy contra-clockwisemovement by the adjusting screw 20. The arm 16 also carries a finger 21 slightly resilient but fiXedly mounted' on said arm 16. The arm 16 also has a project` ing pin 22 for purposes presently to appear. A detent 23 is carried by the spring 211, which spring the arm 25. The arm 1G' is designed to be moved from the position ofv FigLwl to the position of Fig. 3 when the magnetv 8' is momentar-ily energized. At that time the detent 23 falls in front of the vcam-shaped surface of the arm 16 and -holds the arm 1-6` vPatented Dec. 11, 1917.-

Appncation flied March 23, 1914. serial No. 826,775.

against the stop 20 as shown in F ig.3. The relay 8, of course, may be denergized as its continued energization is not necessary to hold the arm 16 in its moved position. In this position of the arm 16 however it will be noted that the right hand extremity of the finger has, been raised, thus raising the arm 15 so that the next energization of the relay 8 will cause this arm 15 to press againstthe detent 23, thereby moving it away from its locking position'on top of the arm 16 and permitting the arm 16 in answer lto the spring 17 to assume the position of Fig. 1. This is also the result of only a momentary energization of the relay 8 as the armature 9 may be retracted, and it will then fall again into the position shown in Fig. l.

It will thus be seen that the first energiza tion of the relay S moves the arm 16 into one position and a second energization permits it toy move Vinto its alternative position, and so on. Each energization of the relay 8 however efi'ects circuitclosure between the elements 13l and` 14, which continues during ythe energization of the relay.

yThe arm 16 is provided with two contact springs 26 and 27 respectively which are ixedly mounted upon an insulating plate 28 carried by this arm. These springs 26 and 27 are adapted to close contact with springs 29 and 30 whenever the arm 16 occupies the position of Fig. 3. The springs 29 and 30 are mounted upon an insulating bracket 31 fixedly secured to the base plate 1. The pin 22 contines the left hand extremity of the arm 15 when the relay is moving the arm 16 from the position shown in Fig. 1 to the position shown in Fig. 3. This is desirable because during this movement the finger 21 is being slightly bent so that when the relay is denergized and the armature 9 retracted, it assumes its normal position to elevate the arm 15 into the position shown in Fig. 3.

A stop 15a is provided upon the base plate 1 to limit the movement of the arm 15. The arm21-isof course iixedly secured tothe element 16 and is capable of a slight spring action` to permit of the of thevdevice as well understood.

Referring more particularly to Fig. 4, I have shown one form in which this particular device may be applied and for purposes of illustration I show herea train despatching system having a central station A, which extends by means of line conductors 32 and 33 to various substations. element 34 may be provided at any point along the right of way which is adapted to close circuit between the arm 35 and the contact spring 36 whenever the proper number of impulses or the proper code has been transmitted over the line circuit by means of the calling mechanism here diagrammatically shown as the key 37. The relay 38 and the slow Yactimg; relay 39 in a well known proper movementsv A step-by-step y manner control the element 34 to actuate it in response to impulses so that the circuit between the'elements 35 and 36 is closed only as the proper code is received.

It is assumed that this step-by-step element is placed at some point along the right of way, say a heavy grade wherev it may be desirable for the train despatcher to know whetherA the trains are experiencing any difficulty in negotiating the grade. To this end a loud talking transmitter 40 is mounted somewhere near-'the tracks, and this Vtransmitter through the agency of the primary winding 41 and battery42may transmit by way of the secondary winding 43 the sounds through the line wires 32 and 33 so that they can be heard in the train despatchers receiver 44. The train despatcher of course desires to connect this transmitter `4() to-the line circuit at certain times and to disconnect ittherefrom, but of course does not wish to maintain an operated condition of the step-by-step device or `the relay 8 because that would tie up his line. Itis vfor this reason that my device is of special benefit because he can set up the connection of the transmitter to the line wires, and then restore all of theo-perating apparatus tok normal so that his line is clear for other' calls or for other business, the line-however being in a position to transmit the sounds of an approaching or passing train to his receiver 44 through the agency of the transmitter 40.

Thus whenever the step-by-step deviceis actuated to close Contact between the elements 35 and 36, then the relay 8 is ener gized to move, through the agency of its armature 9, the springs 26 and 27 into their circuit closing position with the springs 29 and 30. The step-by-step device may then be returned to normal and the relay armature9 may be returned to normal, but the circuit between the elements 26 andl 29 and the elements 27 and 30 is maintained in a closed position. This establishes a circuit from the transmitter 40 through the battery 42, contact spring 29, contact 'spring 26, primary winding 41, to the receiver 40, and also establishes a circuit from theV line wire 32 through the conductor 45, condenser 46, secondary winding 43, contact spring 27, contact spring 30, conductor 47, to they line wire 33.y Thus any noises along the right of way are transmitted through the agency of the transmitter 4() to the receiver 41. The line 32 and 33 however and selective apparatus connected therewith,r as likewise the relay 8, are in ktheir normal unoperated unenergized condition.

Now whenever the train despatcher is through with his investigation and desires to disconnect the transmitter 40, all he needs to dois to again send the code or signal to eiect circuit closure between the elements 35 and 36, whereupon the relay 8 is again energized to open the circuit between the elements 26 and 29 and the elements 27 and 30 respectively.

' 1 have further provided mechanism whereby the train despatcher may be aware of the proper operation of the elements. To this end the armature 9 cooperates with a contact 14 so that a circuit closure between the elements 9 and 14 is effected during the periods of energization of the relay 8. This serves to connect a buzzer 48 in shunt of the transmitter so that when the elements 26 and Q9 are also in engagement the buzzer 48 is operated through the agency of a battery 42, thus energizing a primary winding 41 and sending impulses over the line Wires through the agency of the secondary winding 43 to 'thereby apprise the train despatcher that the connection has been established finally between the elements 26 and 29. Of course, when the relay 8 is denergized the contact at 14 is broken.

Now whenever the train despatcher intends to restore the elements 2G and 27 to normal, the same circuit is initially established at 14 to send the signal, but this immediately ceases when the contact 26 and 29 is broken, thus advising him of a restoration of the connecting elements to normal. Of course, it can be so arranged that the train despatcher gets no signal when disestablishin the system by merely arranging that the springs 26 and 29 shall have their circuit broken prior to the establishment of the contact between elements 9 and 14.

In Fig. 5 I show a further application of my improved mechanism as it may be applied to a station where there is no night operator. A switch 49 is provided to connect the battery 5() through the contacts 35 and 86 to the normal day signal 51, but at night when the operator leaves he reverses this switch to connect the battery 50 and contacts 35 and 36 to the terminals of the relay 8. The relay 8 is then used through the agency of the springs Q6 and 27 and springs 29 and 30 to establish connection be- Copiel ot this patent may be obtainedV for ve cents each, by addressing the tween the lamp 52 and the source of supply, here shown as a lighting generator 53. The train despatcher can thus at night time illuminate the platform when trains are arriving or departing.

From what has been stated the nature of my invention will be entirely clear to those skilled in the art. It will also be readily apparent that what is described here for illustrative purposes is not intended to limit the broader nature 0f the invention.

Having however thus described certain forms in which my invention may be carried out, what I claim as new and desire to secure by Letters Patent is:

1. A circuit controlling device comprising circuit terminals, and a magnet having mechanism whereby successive energizations of said magnet alternately connect and disconnect said circuit terminals, said mechanism including a circuit controlling arm, an independently mounted catch, an armature having means adapted alternately to engage said arm and said catch, and resilient means carried by said arm to shift said means from one to the other of its respective arm or catch engaging positions.

2. A circuit controlling device comprising circuit terminals, and a magnet having mechanism whereby successive energizations of said magnet alternately connect and disconnect said circuit terminals, said mechanism including a circuit controlling arm, an independently mounted catch, an armature having a pivoted finger adapted alternately to engage said arm and said catch, and resilient means carried by said arm to shift said pivoted finger from one to the other of its respective arm or catch engaging positions.

1n witness whereof, I hereunto subscribe my name this 16th day of March, A. D., 1914.

HARRY O. RUGH.

Witnesses:

HAZEL ANN JONES, A. lLYDA JONES.

Commissioner o! Patents,

Wuhington, D. C.

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