US1807030A - Distribution switch - Google Patents

Description

y 1931- cs. P. EDMONDS 1,807,030

DISTRIBUTION SWITCH Filed May 11, 1927 3 SheetsSheet l U a i 9 Inc/67125?- 680C962 ZZZ/2 77207145.

May 26, 1931. G. P. EDMONDS 1,807,030

DISTRIBUTION SWITCH Filed May 11, 1927 3 Sheets-Sheet 2 May 26, 1931'. G. P. EDMONDS DISTRIBUTION SWITCH a Sheets- Sheet 5 Filed May 11. 1927 Jun HHIHI' Geor ePIfdmonda Patented May 26,1931

UNITED STATES PATENT OFFICE enema P. EDMONDS, OF CHICAGO, ILLINOIS, ASSIGNOR T G. AND W. ELECTRIC SPECIALTY COMPANY, 01. CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS nisrmnurxon swrrcn Application filed May 11, 1927; Satel ite. 190,433.

The invention pertains to a distribution box, and more particularly to a novel controlling means for said box whereby certain.

this may be readily effected by a simple switch provided therein, but where an air break is provided and it becomes necessary to ground any terminal, then difiiculty is encountered. It becomes necessary to remove plug connections with their fastenings and make new connections with the attendant loss of time and labor involved.

It is therefore an object of this invention to provide a simple andeflective means for sectionalizing a line and grounding an incoming lead terminal.

It is another object to provide an operating means which successively breaks contacts in the oil switch and the air break and then grounds the lead in to the box.

A difi'erent object is to provide a simple and inexpensive distribution box to both make and maintain, yet which will be of mg ged construction and will effectively operate, connections between lead in and outlet lines.

A further object is to provide a distribution box of such character that a successive operatlon of a switch control in one direction will serve to operate an oil switch, an air break and a grounding connection.

With these and various other objects in view, the invention may consist of certain novel features of construction and operation as will be more fully described and particularly pointed out in the specification, drawings and claims appended hereto.

In the drawings, wherein like reference characters are used to designate like parts- Figure 1 is a sectional elevation of the distribution box, showing the lead-in termi nal grounded;

tion of the parts when a connectionv is established between the-inlet-and outlet lines;

Figure 3 is a diagram showing the parts after the oil switch has been disconnected;

Figure 4 is a diagram showing the relation of the parts in its successive operation, showing the air break as disconnected; and

Figure 5 is a diagram in the last position of operation, showing the lead-in terminal as.- grounded. an,

In the distribution box, the lead-in cable 1 enters the box through the oil sleeve 2 through asuitable stufling box or gland 3, and enters the upper part of the box through a suitable insulating sleeve 29 provided with as proper glands. This lead-in terminal is provided with a shoe 4 to which may be attached one leaf 5 of a grounding switch. Adjacent this shoe, and as shown immediately below it, is a shoe 6 which is adapted to to be attached to suitable conducting means 7, which as shown, is in the form. of a rod adapted'to enter the lower oil containing part of the box through a suitable sleeve 8. The oil switch embodied in this invention is of the same character as that found in the A application of Joseph Rah, for an oil switch, Serial No. 181,667, filed April 7, 1927, so it. will not be necessary to describe this in detail.

Suficient to say that the terminal of post 7 is provided with a fiat shoe supporting end 9 to which the shoe 10 is suitably fastened byany means 12, and held in an outward position by a coil spring 11, as more specifically described in the above referred to application. 5 A similar shoe 15 is provided on the post 16 or outgoing terminal, which shoes are adapt: ed to face each other and be bridged by a suitable switch arm 13, shown positioned be-. tween the insulating barriers 14'.

The lower part of the container 18, it is to be understood, is filled with oil for insulat-, ing purposes so that the post 16 passes up through a suitable sleeve 17 similar to the sleeve 8, which sleeves are supported on a 95 floor section of the box 18*, and said post 16 is provided at its upper end with a shoe 19 similar to and facing the shoe 6. The out let cable is provided with a shoe 20 similar to and facing the shoe 4 and fastened to a 1 cable post which extends through a suitable sleeve 30 similar to the sleeve 29, and the cable at its outer end is provided with any connection 21 adapted to receive a flexible part of the cable which enters the oil sleeve 23 through the stufling box or gland 22. It is of course to be understood that the upper part of the box 18 may not contain oil. It will also be seen that the box, the sleeves and the arts may be readilyreplaced or assemble as all arts are readi y accessible due to any suitable assembling means, such as the bolt connection shown.

The operating means for the switches in the embodiment shown consists of a suitable lever 31 disposed on the outside of the box so as to be readily operable, which lever is keyed to a suitable shaft 31 carrying suitable way of the arm 37 of the member 35 for the purpose of operating the oil switch to closed position.

A shaft 43 is provided to carry the members and 44 which are similar in sha e, each comprising two operating shoulders or engagement with suitable lugs on the quadrant. The members 40 and 44 also comprise operating arms which are respectively attached through suitable links to the air break and grounding switch.

Referring first to the operating member for the air break, said member comprises shoulders 41 and 42, which shoulders are ada ted to be contacted by suitable shoulders or ugs 51 and 51 respectively, on the quadrant for closing and opening the air break. The member 40 is also provlded with an arm 45 which is connected by a link 46 to the air break. The air break in the embodiment shown comprises two shoes 24 and 25, which are connected by an insulatin member 26, which member 1s provided with suitable sprln'gs for holding the shoes outwardly pressed to form a tight contact between said shoes and the shoes 4-6 and 20-19 res ectively. As already described, the mem er 44 comprises shoulders similar to the shoulders 41 and 42, which shoulders are; adapted to be contacted by In or shoulders 52 and 52 respectively for c osing and opening the grounding connection. The grounding connection is connected to the member 44 through an arm similar to 45 through the insulating link 48, which link is pivoted by a suitable grounded arm 49 which carries the grounding finger 5O adaptrate ed to have. contact with the finger 5 for grounding the incoming terminal I. In ormingthe quadrant for operating the oil switch, the air break and the ding switch, it may be convenient to form a three track quadrant for the operating lugs and offsetting the closing and opening lugs with respect to each other.

In operation, referring first to Figure 2 wherein the incoming cable 1 is connected through the box to the outgoing cable 21, in order to break the connection and ground the incoming cable, it is only necessa to go through the followin steps: Lever l is turned to the position own in Fi re 3.

When this is done, the shoulder 34 w1ll contact with the shoulder 36 of the oil switch member 35 and will move the member 35 to its position as shown in Fi re 3. When this is done, the oil switch break its connection between the shoes 10 and 15, but it will be seen that as no In have contact with any of t e operating members for the air break or groundin connection, said connections are not mov When the lever 31 is advanced to the position as shown in Figure 4, the oil switch will remain in its open sition but the lug 51 on the uadrant have come in contact with the ger 42 and will have moved the said fin er from the position shown in Figure 3 to t at of Figure 4, which will cause the air break to assume the position shown in Figure 4, thereby breaking connection between the shoes 4 and 6, and 20 and 19 respectively. Then when the operating member 31 is moved to the position shown in Figure 5, the lug 52 will have come in cont-act with the shoulder on the member 44 similar to the shoulder 42, which will move the link 48 downwardly, causing the cable 1 to and through the fingers 5'and 50 and t e pivoted grounding arm 49.

In operating, to connect the cables 1 and 21 fromtheir position shown in Figure 5, a reverse motion is imparted to the operating lever 31, in which case it will be moved upward wherein first the offset lug on the quadrant will come in contact with the finger on the member 44, similar to the finger 41, which will cause the link 48 to move upward, thereby breaking the connection between the ground and the cable 1. A continued mo tion of the lever 31 in the same direction will cause a suitable ofiset lug 51 to come in contact and move the finger 41 of the member 40, thereby causing the air break to move upward, closing connection between the shoes 4 and 6 and 19 and 20 respectively. A further continued motion of the lever 31 will cause the oflfset shoulder 34 to contact with a suitable finger 37 provided on the member 35, which will operate said memher, the bellcrank causing the oil switch 13 to lift into engagement with the shoes 10 on the quadrant and 15 thereby completing the circuit from the cable 1 through the air break, the oil switch, and the air break to the cable 21.

I do not wish to be limited by the device as specifically illustrated as other and various forms will occur to those skilled in the art.

I claim:

1. In a device of the character described, the combination of inlet and outlet contact means, an isolating switch including fixed contacts and a movable member for electrically connecting said contacts, a slidable switch for electrically connecting said inlet and outlet means each to one of said fixed contacts, and means for successively operating said movable member to break contact with said fixed contacts, and said slidable' switch to break contact with the inlet and outlet means comprising independent levers connected to said movable member and said slidable switch, and a rotatable quadrant having shoulders for engagement with the levers.

2. In a device of the character described, the combination of inlet and outlet contact means, an isolating switch including fixed contacts and a movable member for electrically connecting said contacts, a slidable switch for electrically connecting said inlet and outlet means each to one of said fixed contacts, and a grounding contact for grounding the inlet terminal, and means for successively operating said movable member to break contact with said fixed contacts, said slidable switch to break contact with the inlet and outlet means, and said grounding switch to ground the inlet contact, comprising independent levers connected to said elements respectively, a quadrant mounted for rotation, and shoulders provided on said quadrant for engaging said levers to thereby impart movement to the levers.

3. In a device of the character described, the combination of an inlet terminal and an outlet terminal, conducting means located adjacent each terminal and provided with upper and lower contact shoes, a movable member adapted to connect said lower shoes, a slidable switch for connecting said inlet and outlet terminal with their respective upper contact shoe, whereby said inlet terminal is connected to said outlet terminal through said slidable switch and said movable member, a grounding contact for grounding the inlet terminal, and means for disconnectin said inlet from said outlet terminal an grounding the former comprising a rotatable quadrant having spaced shoulders, lugs adapted to be engaged by the shoulders, levers connected to the movable member, the slidable switch and grounding contact respectively and adapted for operation by the movement imparted to said lugs.

4. In a distribution switch, a pair of terminals, contact means located adjacent said terminals and adapted to connect said terminals through an oil switch, means for successively operating said oil switch, and said contact means including a quadrant adapted for rotation, shoulders provided in said quadrant, and independent levers connected to said oil switch and said contact means respectively and adapted for engagement with said shoulders on rotation of said quadrant.

5. In a device of the character described, the combination of inlet and outlet contact means, an isolating switch including fixed contacts and a movable member for connecting said contacts, means for connecting said inlet and outlet contact means each to one of said fixed contacts, and means for prevent ing operation of said movable member before said inlet and outlet and fixed contacts are in connected relation, said last mentioned means including a quadrant adapted for rotation and provided with a plurality of shoulders.

Signed at Chicago, Illinois, this 4th day of May, 1927.

GEORGE P. EDMONDS.

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