US1288365A - Coil-support. - Google Patents

Description

UNITED STATES PATENT OFFICE. i

CHARLES ROBERT YOUNG, OF BLOOMFIELD, NEW JERSEY, ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

COIL-SUPPORT.

Specification of Letters Patent.

Application filed April 24, 1917. Serial No. 164,249.

To all whom it may concern Be it known that I, CHARLES R. YOUNG, a citizen of the United States, residing at Bloomfield, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in CoilSupports, of which the following is a full, clear, concise, and exact description.

This invention relates to electrical apparatus such as loading coils, repeating coils, transformers, and the like, and more particularly to the mounting of such apparatus within a suitable casing or housing.

The object of the invention is the mounting of coils and like apparatus so as to hold them firmly in position under all conditions without injury thereto, and with this end in view provides a pair of pins suitably sup ported and located at opposite sides of the coil or other apparatus to be supported and clamping means arranged to engage opposite sides of such apparatus to hold it in the desired position.

Referring to the drawing illustrating one form of the invention, Figure 1 is a horizontal view of an inclosed repeating coil with the case and cover removed, the coil being shown in cross section; while Fig. 2 is a vertical section thereof, taken on the line 22 of Fig. 1. As applied to inclosed repeating coils, a casing or housing 1, preferably of iron, is provided to receive coil 2, a toroidal coil similar to that shown in a patent to Stanley B. Kent, 1,168,312,

.dated January 18, 1916, being shown, al-

though a variety of other coils or similar apparatus could obviously be successfully mounted in a like manner. With certain types of coils a magnetic casing is undesirable and in such cases the casing 1 would, of course, be made of suitable non-magneticmaterial. The casing 1 is provided with bosses 3 and 4 on the interior thereof, the boss 3 having a seat 5 therein to receive a supporting pin 6, while the boss 4 has a similar seat for a pin 7. The pins 6 and 7 are each shown as cylindrical and having a flattened portion 8 for engagement by a strip 9 adjustably secured to the respective bosses 3 and 4 to hold the pins in position and prevent rotation thereof, but any other suitable arrangement to accomplish this purpose may be used.

The inner ends of the pins 6 and 7 each have enlarged heads 10, which enter the center portion of the coil 2 and which are preferablycovered with tape to provide a firm enga ement with the coil 1 without causing a rzgon thereof. The pin 6 is preferably provided with a block 11 which engages the side of the coil to space it from the casing, while the pin 7 has a block 12 abutting the boss 4 and providing a more substantial bearing for the pin 7. The pin 7 is also threaded and carries a clamping nut 13 sufiiciently large to provide a large surface in engagement with the side of the coil 2 opposite the block 11. A suitable washer 14 is carried on the pin 7 intermediate the nut 13 and the coil to prevent abrasion of the, coil on tightening of the nut. The pins 6 and 7 by virtue of their mounting in the bosses 3 and 4 are capable of longitudinal adjustment and are held in their adjusted position by the strips 9. These pins are adjusted so that with the coil in contact with the plate 11 the ends 10 of the pins firmly engage the central aperture of the coil. After the plate 13 is adjusted the coil is clamped between the plate 11 and the washer 14 and as the coil is of a material and construction which does not readily yield to compression the clampingaction between the plate 11 and washer 14 does not move the coil bodily and consequently does not affect the engagement of the pins 6 and 7 with the coil. The pins 6 and 7 aid in the preliminary positioning of the coil and are of decided advantage during the ad justment of the clamping nut 13.

The pins, together with blocks, nut and washer carried thereby, are preferably of insulating material, wood such as hard maple having been found especially desirable for the pins, blocks and nut, while fiber, or the like is suitable for the washer 14; the wood being preferably treated with paraffin or other suitable compound unless it is to be surrounded with insulated material, as shown in Fig. 2, in which case drying the wood before putting the insulating compound in place has been found sufficient. The coil, as shown, is preferably surrounded with a suitable insulating medium and the remainder of the casing is filled with suit able media, as set forth in the copending application of Albert Pruessman, Serial No. 133,148, filed November 24, 1916; the compound used for the layers 15 and 16 being such that it is not subject to flow at the temperatures which are encountered under installation conditions, while the medium 17 may be subjected to flow at the higher temperatures encountered. Various means which depend on the solidity of the compound 17 have been used heretofore to hold the coil 2 in place, but proved unsatisfactory at the higher temperatures, as the softening of the compound 17 would allow the positioning means used to work out of place, thereby permitting displacement of the coil and impairing the insulation and efiiciency thereof. The present arrangement is of decided advantage under these conditions, as the coil is held firmly in place under any and all conditions of the surrounding medium 17. The casing 2, as shown, is provided with a cover 18 and with a sealing compound 19, such as asphaltum, covering the compound 16 to provide a more moisture-proof construction. Conductors 20 and 21 leading to the incased coil 2 are brought into the casing through suitable bushings 22 and 23 respectively, the connections between the bushings and casing and between the conductors and bushings being made moisture-proof.

The coil mounting, while shown as applied to a repeating coil sealed in an insulating medium, is obviously suitable where no such medium is used and where the housing is not weatherproof and such applications are considered as within the scope of the present invention.

\Vhat is claimed is:

1. A support for toroidal coils comprising means extending partially through the central aperture of the coil, and additional means engaging the surface of the coil to prevent rotation on said first mentioned means.

2. A support for toroidal coils comprising a pair of alined pins extending partially through the central aperture of the coil, and clamping means engaging the surface of the coil to prevent the rotation of the coil on the pins.

3. A support for toroidal coils comprising a pair of alined pins, a pad of yielding insulating material mounted on the ends of said pins engaging the coil within the central aperture thereof, and clamping means engaging the outer surface of the coil.

4. A support for toroidal coils comprising a plate having a pin projecting therefrom, a second plate adjustable toward the first plate having a corresponding pin projecting therethrough in alinement with the first mentioned pin.

5. A support for toroidal coils comprising a pair of alined pins, and a pair of clamping plates surrounding said pins adjustable toward each other.

6. A support for toroidal coils comprising clamping plate, a pin projecting therefrom, a second pin in alinement with said first mentioned pin, and a second clamping plate threaded on said second pin so as to be adjustable toward said first mentioned clamping plate.

7. A support for toroidal coils comprising a clamping plate, a pin projecting there from, a second pin in alinement with said first mentioned pin, a second clamping plate threaded on the second pin so as to be adjustable toward said first mentioned clamping plate, and a washer. surrounding said second pin interposed between said plates.

In witness whereof, I hereunto subscribe my name this 20th day of April A. D., 1917.

' CHARLES ROBERT YOUNG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Images