US1421923A - Starting compensator - Google Patents

Description

P. DUNNING.

STARTING COMPENSATOR. APPLICATION FILED NOV.1T, 1919 b %1-7 Hisa ttorheg.

I a citizen ofth ev United States, residing at 1,421,923.- r I K rp' na on filed November 17, 191-9. seria No. 338,571.

UNITED STATES PATENT. OFFICE.

PARKER De i e; or BLOOMFIELD, NEW JERsEY, ASSIGNOR TO GENERAL ELECTRIC To all whom it may cotfcerat." i

' Be itgknown that -I, PARKER-DiiNNING,

Bloomfield, in the county of Essex, State of New; Jersey, have invented certain new andusefullmprovements in Starting Comensators, of which'the following is a speci-- cation.- r

This invention relates to 'ca'slngs for electrical apparatus such as switches or the like,

and has for its object the provision of improved devices of this'character in which simple and rugged means are provided for installation, inspection and renewal of parts.

In one of its aspects my invention comprises an improved oil well .for electrical switches, contacts and the like.

Heretofore in some types of casings the oil well has been rigidly secured to 'a'jsupport such as being screwed to a frame, which made it necessary to remove the oil well from the casirg-to inspectthe contacts. This operation required two men, oneof whom held the oil well while the other loosened the screws. In'other cases the oil well has been pivoted at one side and provided with a screw or other fastening means on the other side to hold it in place. It is clear that in'such an arrangement theseveral parts of the switches could not be readily reached nor seen, since the pivoted well could move through but a limited are without spilling the oil. To move thewell; to the full open position required the removal of the oil; Also, in this position the oil would drip. from the switches to the surface below.

To overcome these diflicultie s, I provide an oil well with an improved arrangement whereby the well may be uniformly lowered and'raised in a vertical plane. my invention into effect in one form, the oil well is provided with spring latches. to hold it in operative position and is lowered by simply releasing the latches which automatically latch the well inthe. lower position. Should it be desi red for any reason to remove the well entirely, this can be done by releasing the latch from the lower position.

My invention makes the switch readily accessible-for inspection or installation of parts,'prevents the loss of oil and catches the drippings from the switches. The frequent inspectionof the contacts is thus en couraged byreducing the labor and simpli Specification of Letters Patent.

Carrying COMBANY, A CORPORATION OF NEW YORK.

" ESTARTING COMPENSATOR.

Patented fyin the operation of lowering or removing t e oil wells. r

;Other objects and purposes of my ini venti'on will appear in the course of the i ollowlng specification in which I have s own mylnvention embodied in concrete form forv purposes of illustration.

- In the accompanying drawings, Fig. 1 is a side .elevl ati on of a casing embodying my 1njT6I t1on",-"w1th' parts broken away, in a -sem'i-suspended position with .reference to the outleteonduit'box; Fig. 2 is an enlarged side .yiew of my invention with parts brokenfl away in which the casing is shown in a normally suspended or operative position; :and 3 is a section taken on the linesr-l-l of Referringtothe. drawings, 1 indicates a.

casing in which is placed electrical apparatuscomprislng. a switch mechanism, and

which is provided with a removable cover 2 and-locking means 32 The rear side 4 of the casing 1, that is, the side to which vided with an opening 5. near its up From Fig. 2 it will be observed forming a shoulder 6. 7 indicates a conduit outlet'box-inwhich are placed-the main' line terminals 8. From the drawing it will be seen that the front of the conduit box is open; that the upper side 9 thereof slightly longer than its lower side 10, and the edge thereof is bent'upwardly forming a projectionll. The edge of the lower side 10-is bent downwardly forming a shoulder 12. The conduit box 7 is secured toa suit-.71.. able support, such as a panel indicated at 13, by any convenientmeans,such'as a bolt 14.- The opening-5 ofbasing 1 is of such size that when its upper-*edge'is suspended uponthe upper side 9 of the conduit box,

and against the projection 11, as shown in v Fig. 1, the shoulder 6 of the box will fit over the lower, side 10'of'the conduit box and rest against theshoulder 12 thereof,

as'shown'in Fig. 2. 'The back- 1 of the casing 1 is also provided with .a member 15 which is of such length that when secured to the panel 13, the casing lwill be, in a vertical position. ,While thismember serves as a brace toreinforce'the side 10 of the n conduit box, it also serves, tohelp support and securethe casing 1 permanently in position when suspended from the conduit box.

. member 22, which are mounted on the outside thereof near their respective upper ered.

The terminals 16 of the apparatus housed other insulating liquid for reasons well known.- The oil is held in a container or well 18, which telescopes a U-shaped member 19, which fits over and supports the switch 17 as shown in Fig. 3. The member 19 is rigidly secured within the casing. in any suitable manner and is provided with a set of openings 20 near the lower end of each of its sides. It is of course understood that the openings 20 could be made in any member suitably located in the casing. On each of its two opposite sides the oil well 18 is provided with a handle 21 and a spring latch edges as shown in the drawings. The member 22 is pivoted at 23 and is provided with two hooks 2 1- which are normally urged in wardly against the sides of the oil well by springs 25. The casing 1 is provided with a set of openings 26 arranged to be engaged by said hooks 2 1. Therefore, when the oil well 18 telescopes the member 19, thereby -immersing the switch 17 in oil, the books 24 engage in the openings 26 respectively, and thus serve as a means of support to maintain the oil well in this position. as shown in Fig.

1. Should it be desired to'inspect the contacts 17, or make them accessible for any other purpose, the oil well 18 may .be low- This is done by slightly raising the oil well by the handles 21 and depressing the members 22 which disengages the hooks 24; from the respective openings 26. As shown in the drawings, each member 22, whichcarries the hooks 24:, is inclose pr0x- -imit v to the handle 21, so that when that handle is grasped, the hooks may be conveniently released by the thumb of the hand pressing on the member 22. The oil well is thus free to move and may be lowered until the hooks 24L engage in the respective openings 20 of the member 19. In this position, indicated by dotted lines in Fig. 3, the switch 17 is out of the oil and may be readily inspected. Also all drippings therefrom will pass into the oil well. Should it be desired to remove the oil well entirely from the compensator, this may be done by disengaging the hooks 24 from the openings 20. To immerse the switch in oil again, the hooks 24 are disengaged from the holes 20 in the mannerdescribed, and the oil well is raised by the handles 21 until the hooks 24 engage the openings 26.

ln a divisional application, hieriul :X'o. 5155,5131. filed ill-arch 31, 1922. l have claimed the general arrangement oftho casing and the conduit outlet box so as to form a continuous closed passage for the conductors.

\Vhile l have described my invention as embodied in concrete form and as operating in a specific manner in accordance with the provisions of the patent statutes, it should be understood that I do not limit my invention thereto, since various modification thereof will suggest themselves to those skilled in the art without departing from the spirit of my invention, the scope of which is set forth in the annexed claims.

\Vhat I claim as new and desire to secure by Letters Patent of the l nited States is 1. The combination of a casing for electrical apparatus, of a movable oil well provided with fixed handles-and movable members in close proximity therewith biased to a position in which said well is supported from the casing by the said members.

2. The combination with a casing for electrical apparatus of a movable oil well provided with fixed handles and movable members in close proximity therewith, the said movable members being provided with books adapted to engage the casing to suspend the oil well in one position and adapted to be moved when the handles are grasped so as to release the hooks and permit the oil well to be suspended in another position.

3. The combination with a casing for electrical apparatus provided with a switch, of an oil well provided on each of its outer opposite sides with a fixed handle and a pivoted member in close proximity therewith. said pivoted member being provided with a set of books and a springnormally urging said hooks against the side of said well. means on said casing to be engaged by said hooks to suspend the oil well in a position wherein said switch is immersed in oil, means engag said hooks to suspend the well in a posi tion wherein the switch is freed from immersion, when the hooks are released and the oil well lowered from the former position.

4:. The combination with a casing for electrical apparatus provided with a switch, of an oil well provided with handles and latches arranged to be operated when the handles are grasped, means engaged by said latches to suspend the oil well in a position wherein said switch is immersed in oil, and means engaged by said latches to suspend the oil well in a position wherein the switch is freed from immersion when the latches are released and the oil well lowered from the former position.

In witness whereof, I have hereunto set my hand this 14 day of November, 1919.

l. O O

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