US1272445A

US1272445A - Circuit-controlling device.

Info

Publication number: US1272445A
Application number: US48534A
Authority: US
Inventors: John S Holliday
Original assignee: Union Switch and Signal Inc
Current assignee: Hitachi Rail STS USA Inc
Priority date: 1914-12-18
Filing date: 1915-09-01
Publication date: 1918-07-16
Anticipated expiration: 1935-07-16

Description

1.8. HOLLlDAY.-

CIRCUIT CONTROLLING DEVICE.

APPLICATION FILED SEPT ,1. 1915.

Patented July 16, 1918.

2 $HEETS-SHEET1 FIG.1

J. S. HOLLIDAY. CIRCUIT CONTROLLING DEVICE. APPLICATION r1120 SEPT. I, 1915.

Patented July 16, 1918.

2 SHETSSHEET 2- /3a 3a /4 3e I 25 a Z 6 /0 2 4 0 o 26 a, I" M I 27 555-: L g In. t

I By aw To all whom it may concern:

- UNITED STATES PATENT OFFICE.

JOHN S. HOLLIDAY, OF WILKINSBURG, PENNSYLVANIA, ASSIGNOB TO THE UNION SWITCH & SIGNAL COMPANY, OF SWISSVALE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

Specification 01' Letters Patent.

GIRCUIT-CONTROLLIN G DEVICE.

Patented July 16, 1918.

Original application filed December 18, 1914, Serial m3. 877,882. Divided and this application filed September Be itknown that I, JOHNS. HQLLIDAY, a citizen of the United States, residin at Wilkinsburg, in the county of Alleg guy and State of Pennsylvania, have invented certain new and useful Improvements in Circuit Controlling Devices, of, which the following is a specification.

My invention relates to circuit controlling devices.

This application is a'division of my 00- gending application Serial N 0. 877,882 filed so. 18, 1914, for systems for the transmission and distribution of electrical energy.

bodying my invention, and will then point p out the novel features thereof in claims.

In the accompanying drawings, Figure 1 is a diagrammatic view showing a transmission line having a plied thereto one form of apparatus emdying my inven-. tion. Fig. 2 is a view showing one of the switches 0 shown in Fig. 1. Fig. 3 is a view similar to Fig. 2 but showing the parts of the switch in an intermediate position during the operation of closing the contacts. Fig. 4' is a view also similar to Fig. 2, but showing the parts of the switch in the positions which they occupy when the contacts are closed. 1

Similar reference characters refer to similar parts in each of the several views. v

Referring first to Fig. 1, I have here shown a transmission line comprising two wires 1, 2, which line is divided into sections A, B, etc. The several sections may be connected .with and disconnected from each other by switches O, 0, etc., one such switch being located between each two adjacent sections. Current is supplied to the transmission line by means of a generator 3,

' here shown to be a single phase alternator.

Transformers T, T T etc, supply power from the line 1, 2 to electrical loads of any description such as signals, lamps, etc.

Referring now to Fig. 2 the switch 0 comprises

fixed contacts

15, 16 and 17, 18 which are bridged by

bars

19 and 20 respectively when the switch is in the closed position, these contacts and bridglng bars constituting a circuit controller for connecting the adjacent sections of the transmission line:

Bars

19 and 20 arerigidly gravity to a lowermost motor 2-1 through a'system of I will describe one form of apparatus em-- I open.

7 1,1915. Serial N0.48,534.

attached to, and electrically insulated from, a sliding link 14. The link 14 is biased by position in which posltion a. dog 36 on the link engages a fixed stop 36*, but the link may be moved upwardly to close the contacts by means of a links which I will now describe. A worm gear 23 rigidly attached to the motor shaft 24, meshes with a worm wheel 6. A pin 8, inserted in the worm wheel 6, is adapted to slide in a slot 25 in a link 7 pivoted at one end to a fixed member 4. The other end of this link 7 is connected to another link 26 by a pin 27. Link 26 is pivotally connected with one end of a link 28 by a pin 29. The

other end of link 28 is connected by pin 30 to a toggle device'consisting of links 10 and 11, pin connected at 31. The other end of link 11 is pivoted to a fixed member 5. The sliding link 14 is connected by a pin 22 to link 28.

-A transformer 33, the primary of which is connected to the transmission line on that side ofthe sectionalizing point nearer to the generator 3, furnishes power for the motor 21 through

leads

34 and 35 and a switch C. Switch 0 comprises two

fingers

13 and 13 which are normally in contact, but which are opened by the dog 36 on link 14 when this link is raised to such position that the switch contacts are closed.

Transformer 33 also supplies power to the energizing winding 37 of magnet M. The armature 12 of this magnet is attached to link 11 at such a point that, when link 11 4 is swung clockwise about its pivot 5 armature 12 will engage with. the pole-faces 38 of magnet M.

In Fig. 2 I have shown all the parts in the positions occupied when there is no current supplied to the transmission line. When voltage is applied. to the line by closing switch S, only section A takes power from generator 3, for switches O, 0, etc., are Transformer 33, the primary of which is connected to section A of the transmission line is energized. Magnet,38 of the first switch 0 is energized but it cannot move its armature 12, because this armature is too far away from the magnet. Since switch C is closed, motor 21 is energized and gearing and.

slot 25 of link 7, causes that" link to turn in a clockwise direction about pivot 4. Link 28, is thereby caused to turn about pivot 22 so that point 30 of-thislink is-raised, andit is held there because magnet M is energized. When this is accomplished in 8 will have moved to the dotted posltion. The parts of the switch are then in the ;positions in which they, areshown in Fig. 3.

Further rotation of wheel 6 will cause link 7 to rotate counter-clockwise around pivot 4, and since point 30 is stationary because armature 12 is held by magnet M, the left hand end of link 28 is raised so that link 14 and C is set in operation and connects these is pushed upward. When link 14 reaches the highest point of its travel it closes the

contacts

15, 16 and 17, 18, and opens switch C. The parts of the switch then occupy the positions in which they are shown in Fig. 4. Sections A and B of the transmission line are then connected, and the motor 21 is stopped in such a position that pin 8 and link 7 remain in the position shown in Fig. 2. That is, the worm wheel 6 is turned through one complete revolution in order to close the switch 'O'.- Section B now being energized, the switch 0 between sections B sections after a predetermined interval. of

. time, and so on until the entire transmission 35 line is energized.

It is evident that the time for one revolution of the worm wheel 6 can be varied by changing the gear ratio of the worm gear.

The closing of the various switches 0 should i be so timed that during starting the transmission systemcarries 100 to 150% of the full load, according to the overload capacity of the generator 3. Thus the load on section A of the line should besuch that its starting power is equal to, the maximum ca acity of the generators. 7 Switch 0 shoul be timed so as to close when the starting power required by sect on A has diminished to normal value or to such an amount that the sum of the starting power for section B 'and' the power required by section A at the time of the closing of switch 0 is equal to the maximum capacity of the generators. Thus maximum rapidity oi energization of the transmission line is secured by properly proportlon ng the loads on the various sections and the time of closing of the switches.

When switch Sis opened, potential is' taken off the line. Magnet M of each switch '0, is then den'ergizedso' that armature 12 is released; Toggle 10, 11 opens and link 14 ispulled downward byvgravity, (point 29 being stationary) so that the switch --to the line.

Armature 12 isthus brought shown in Fig. 2, ready to operate again as described above when potent al is reapplied Although I have herein shown and described only one form of apparatus embodying my invention, it is understood that va-' rious changes and. modifications may be ing a floating lever, a contact member pivotally connected with said lever at a point lntermediate the ends ofthe lever, means operatlvely connected with one end of the lever for movingsaid end from an initial made therein within the scope of the appended claims without departing from the position to another position and back to the initial position, the resultant rocking of the lever taking place about said intermediate pivotal point unless movement of the other end of the lever is restrained, and electrically controlledmeans moved into operative position by the rocking of the lever about said intermediate point due to movement of thefirst end away from its initial position for restraining said other end of the lever'whereby during'the return movement of the first end of the lever to its ini-' tial position the lever swings around the lever taking place about saidintermediate *pivotal point unless movement of the other end of the lever is restrained, an electromagnet, an armature operatively connected with said other end of the lever and moved into return movement ofthe first end to its initi-al position and so moves saidcontact member.

In testimony ,whereof'I aflix my signature in presence of two witnesses.

JOHN s. HOLLIDAY.

Witnesses:

. FRANK A. BRYAN,

' A. C. Nome.

the attractive range of said magnet by the i