US854309A - Supporting means for electric apparatus. - Google Patents

Description

No. 854,309, PATENTED MAY 21, 1907. E. GAREBD. SUPPORTING MEANS FOR ELECTRIC APPARATUS. APPLICATION FILED NOV. 3, 1906.

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No. 854,309. PATENTED MAY 21, 1907.

E. G. REED. SUPPORTING MEANS FOR ELECTRIC APPARATUS.

APPLICATION FILED NOV. 3, 1906.

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% .Q IIIIIii A a I A ATTORNEY Means for Electric. Apparatus, of

UNITED STATES *PATENTt EMERSON c. REED, or WILK'INSBURG, PENNSYLVANIAASSIGNOR 'ro-wEs'r- INGHOUSE' ELECTRIC '& MANUFACTURING COMPANY, ACORPORATION OF' PENN SYLVANIA SUPPQRTII IG MEANS FOR ELECTRIC APPARATUS.

1 Specification of Letters Patent.

Patented May 21, 1907.

Application filed N v nber 3,1906. Serial No. 341,922. a

To all whom it mag concern: I

Be it known that I, EMERSON G. REED, a citizen of the United States, and a resident of Wi'lkinsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Su orting which the following is a specification.

. if" The," object of my invention is to simple and durable means of the a ores'aid My invention relates to inclosed electric I, apparatus, and has special reference to means for rigidly'supporting the cores and windin s of alternating current transformers in suite le tanks or cases.

rovide class that may be readily adjusted to various sizes of transformers having inclosing tanks which may or may not correspond exactly to the size of the transformer,

Commercial alternating current transform ers are almost universally. rovided with in closing tanks or casin's 0 some kind and,

for transformers of t e smaller sizes, cast iron tanks are often employed. The-transformers themselves, apart from the tanks, comprise relatively heavy core members upon which coils are mounted. Consequently,

theymust be rigidly. supported in the tanks in which they are'located in order to avoid injury to the conducting leads and to thee);- posed portions of the windings.

In theprior art, projecting ears were often formed integral with, or were attached to, theinteriorwalls of' the casin sponding ears pro'ected laterafi corefs'structure:an were readily secured to the c'asin bypassing clam ing bolts through I 'of electrical apparatus.

holes in t e projections. he limited service to which a single casing can be applied is the prinoipal disadvantage in an arrangement of this kind, in consequence of which a great nuniberof patterns and-tools are requiredf'or molding and finishing casings which are adanted for the various transformer sizes orand 7 leads, are sup orted.

and corre y from theso arranged, wit

former siipported therein by means of the improved device ofmy invention. Fig. 2' is a plan view. of a portion of the transformer and the support shown in Fig. 1.

Referring to the drawings, the transformerv illustrated comprises a laminated core structure 1, upon which coils 2..are mounted, and

an inclosing tank or casing 3. The laminated core structure 1 is bound together at the top and bottom by end plates4, 5, 6, and 7, the upper plates being provided with projectingjears 8 and 9 and the lower plates 6 eing provided with projections 10 and 11 which form astandard' or base for. the assembled transformer. The casing 3 may be of any suitable structure, a well known form. being illustrated which com rises a cast iron tank having cor' rugated wa ls to increase the external radiating surface and a ledge or shelf 12 in which 1 suitable bushings 13 for the transformer Downwardly' extending, wedge-s aped projections 14 having longitudinal slots 15 cut in their centers are .provided on twoopposite side walls of the casing substantially at the level of the top of the transformer core. Atie-bolt 16 is passed. through holesin the projecting ears'8 and 9 of the clamping plates 4 and 5 and." isheld in position relative thereto by nuts 17 and lock washers 18. The length of the bolt is such that whenlit is in position, the transformermay. readily be'lowered into the casing, the ends of the bolt projecting into the slots 15 of the wedge-shaped projections; Washers 1.9

having beveled surfaces adaptedto engage the.wedgeshaped projections 14, are loose fitted upon the ends of the tie-bolt 16 and adjusting nuts 20 are adapted to force the washers against the projectionsv when the transformer is in position.) The inner surfaces ofthe wed e-shaped projections 14 are downward, that, as the adjusting nuts20 are forced against the washers 19, the trans-' former coil is forced against the bottom of the transformer casing and is held rigidly-in position. t

The formpf the supporting rejections and the engaging washers may e va'ried, the

other modifications may obviously be efl'ected without departing from the spirit/of my invention.

the points of the wedges v The simplicity and security of the clamping device, as liereinbefore described, makes it. specially desirable and it is practically impossible for a transformer, once properly fastened in its case, to work loose. Y

Although I have illustrated a core type transformer, the means for clamping the transformer to the. casing is obviously not confined to any specific structure and I desire that only such limitations be imposed as are indicated in the appended claims.

I claim as my inventioni 1. The combination with a transformer casing, of adjustable means for supporting a transformer therein. v 4

2. The combination with a transformer comprising a laminated magnetizable core, a

supporting frame therefor, and a plurality of coils, of an inclosing casing, and adjustable means for supporting he transformer in the casing.

3 The con'ibination' with a transformer and a casing therefor, of adjustable means comprising a tie-bolt attached to the transformer and end blocks or washers which are forced against the inside walls of the casing for supporting the transformer in the casing.

4. The coi-nbination with a transformer comprising a laminated magnetizable core, a supporting frame therefor, and a plurality of coils, of an inclosing casing, and adjustable means comprising a tie-bolt that is attached to the transformer core and end blocks or shaped projections for locking the transformer in the casing.

6. The combination with a transformer comprising a laminated magnetizable core, a binding end frame therefor, ears projecting outwardly from the frame, and a plurality of coils mounted on the core, of an inclosing casing for the transformer having wedgeshaped inward projections and means comprising a tie-bolt that extends through suitable holes in said projecting ears, binding nuts therefor, beveled washers fitted loosely upon the ends of the tie-bolt, the outer surfaces of which are adapted to engage the wedgeshaped projections on the casing, and ad justing nutswhich are adaptedto force said washers against said projections.

In testimony whereof, I have hereunto subscribed my name this 31st day of October.

EA IERSON G. REED. Witnesses:

CHAS. B. MoC nnY, Bnmnr IIINES.

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