US354292A

US354292A - williamson

Info

Publication number: US354292A
Authority: US
Publication date: 1886-12-14
Anticipated expiration: 1903-12-14

Description

(No Model.) 7

D. WILLIAMSON.

ARMATURE FOR'DYNAMO ELECTRIG'MAG HINES.

Patented Dec. '14, 1886.

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' D. WILLIAMSON.

ARMATURE FOR DYNAMO ELECTRIC MACHINES.

No. 354,292. Patented Dec. 14, 1886.

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WILLIAMSON.

ARMATURE FOR DYNAMO ELECTRIC MACHINES. No. 854,292. Patented' Dec 14, 1886.

wi lmcooeo v amvamlo'c UNITED STATES ll) AVID l VILLTAMSON,

OF NElV YORK, N. Y.

ARMATURE FOR DYNAMO-ELECTRIC MACHINE$.

SPECIFICATION forming part of Letters Patent No. 354,292, dated December 14, 1886.

Application filed August 2, 1856. Serial No. 209,750. (No model.)

To aZZ whom it may concern.-

Be it known that I, DAVID \VILLLiMsoN, of the city, county, and State of New York, have invented certain new and useful Improvements in Armatures for Dynamo-Electric lvflZtCl'lillQS, of which the following is a s ecification, illustrated by the accompanying drawings.

This invention is designed to promote econonly of material in the construction of laminated cores; and it consists of a spirallylaminated armature-core, including mechanism for holding the core together and for supporting the armature.

Figure l in the drawings is a front view of my improved armature, including the shaft upon which it is mounted. Fig. 2 is an end view of the same, the armature being but partly wound. Fig. 3 is a front view of the same without the winding of the armature. Fig. 4 is a central longitudinal section of the armature on the line'a a of Fig. 5. Fig. 5 is a cross-section of the same on line b b of Fig. 4. Figs. 6, 7, 8, and 9 are details illustrating the construction of the armaturecore.

The numeral 1 in these figures denotes the core of the armature, while 2 denotes the armature-shaft, and 8 the coils of insulated wire which are wound upon the same. This core, which is a spirallydaminated iron cylinder, is made in the following manner: A straightiron strip or ribbon, 4, having any convenient length, a thickness which is equal to the thickness of the proposed laminations, and a width which is equal to the thickness of the wall of the cylinder, is bent edgewise, by suitable machinery or otherwise, into the form of a close spiral whose diameter is equal to that of the proposed core. If the cylindrical spiral which is thus formed should be shorter than is necessary for the proposed core, the deficiency is to be supplied by bending in the same manner an additional iron ribbon which is of the samc vidth and thickness, and by placing the two cylindrical spirals which have been thus produced end to end in such a manner as to form a single continuous cylinder. Any number of cylindrical spirals of the same description may be placed to gcther in the same manner, and may, if de sired, be soldered together in the specified po sition until a continuous cylinder has been formed whose length is equal to that of the proposed armature-core. The adjacent coils or laminations of the core maybe separated from each other, if desired, by paint, paper, or other insulating substance. The several parts or coils of core 1 are fastened compactly together by a suitable number of brackets, 5, each of which consists of two terminal parallel snugs, 6, and an intermediate sole, 7, which is as long as said core. Such a bracket is shown in side elevation and in end elevation in Figs. 8 and 9, respectively. After brackets 5 have been applied to core 1, in such a manner as to hold the latter compactly together, as shown in Fig. 5, wire 3 is wound upon the core in any ordinary or convenient manner. The support of the armature-core so constructed and held together consists of a cylindrical wheel, 8, which is mounted upon shaft 2 by means of hub 9. Around this wheel, core 1, provided with brackets 5, is mounted by means of iron blocks 10, which are located one at each end of each such bracket. Each block 10, being provided with a slot or channel which contains one end of a bracket, 5, is fastened to the periphery of wheel 8 by belts or screws 11.

Such being the mode of constructing and mounting my improved armature, the mode of its operation is similar to that of other ringarmatures which have laminated cores.

It is obvious that the economy of material resulting from the construction of the laminated core in the manner described becomes particularly importantin the caseof ri ng-arrna tn res of large size.

I claim as my invention- 1. For the armature of a dynamoel'ectric machine, an iron core consisting of spiral laminations, in combination with brackets which are mounted between fixed collars, substantially as and for the purpose specified.

2. As a means of mounting a cylindrical ring-armature upon a wheel or rotary cylinder, a series of brackets which are adapted to embrace the core of said armature, in combination with slotted blocks which are bolted to said wheel or cylinder, and are adapted to hold said brackets in position, substantially as and for the purpose specified.

0. A spirally]aminated armature-core and brackets for the support of the same, in 00111- are fastened, substantially as and for the pur- 1o bination with slotted blocks which hold said pose specified. brackets in position, substantially as and for In testimony whereof I have hereunto subthe purpose specified. scribed my name in the presence of two wit- 4. A spirallylaminated armature core, nesses. brackets which are adapted to support said DAVID WILLIAMSON. core, and slotted blocks which are adapted to Witnesses: support said brackets in combination with a H. G. WEsToN, wheel or rotary cylinder, to which said blocks D. C. WILLIAMSON.