US266740A - Edwaed weston - Google Patents

Description

(No Model.) 3 Sheets-Sheet '1.

I E. WESTON.

MAGNETO OR DYNAMO-ELEGTRIG MACHINE. No. 266.740. Patented 0ot. 31, 1882.

ff PVC) (No Model.) 3 Sheets--Sheet 2. E. WESTON.

MAGNETO 0R DYNAMO ELECTRIC MACHINE. No. 266,740. Patented Oct. 31, 1882.

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3 Sheets-Sheet 3. E. WESTON.

MAGNB'TO OR DYNAMO ELECTRIC MACHINE.

Patented Oct. 31, 1882.

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EDWARD WVESTON, OF NEIVARK, NEW JERSEY, ASSIGNOR TO THE UNITED STATES ELECTRIC LIGHTING COMPANY, 011 NEW YORK, N. Y.

MAGNETO OR DYNAMO ELECTRIC MACHINE.

SPECIFICATION forming part of Letters Patent No. 266,740, dated October 31, 1882.

(No model.)

To all whom it may concern:

Be it known that], EDWARD WEs'roN, a subject of the Queen of Great Britain, and aresident of Newark, Essex county, New Jersey,

have invented certain new and useful Improvements in Magneto or Dynamo Electric Machines, of which the following is a specification, reference being had to the drawings accompanying and forming a part of the same.

My improvements are applicable to dynamo or magneto machines having heavy field-magnets and solid pole-pieces; and the said improvements consist in casting arms integral with the said pole-pieces in substantially the manner hereinafter set forth, said arms being of such a character as to form the supports for thejournals of the armature.

In the drawings hereto annexed I have shown a machine illustrating the general type to which the invention is most conveniently and practically applied. Figure 1 showing the same in side elevation, Fig. 2 being a plan view of the same. Fig. 3 is an end view of the machine, and Fig. I a view in perspective of a portion of the pole-pieces and the journal-sup port forming an extension therefrom.

Previous to myinvention the armature-shaft of machines equivalent in general plan of construction to that illustrated in the drawings 0 was journaled in standards or bearings independent of the field-magnets. Great difficulty' has been experienced in such machines in attainin g a perfect rigidity-and stability of the parts, and in truing the bearings. I have 5 found, however, that when a system of heavy field-magnets are employed in conjunction with an armature journaled between them great increase in stability and economy of constructionis attained by mounting the armature in 40 the following manner: The field-magnets A A are independently cast and joined at their end by a solid cross-connection, B. The armature F is cylindrical in shape, and has necessarily a comparativelydong shaft, f, with the bear- 4 5 ings at a correspondingly-great distance apart. The pole-pieces U 0 of the cast-iron cores are solid masses of iron with arms E E extending from them. These arms are of a size to give perfect steadiness andgreat strength, and are bent up near their ends to form convenient supports for the plates D D, in which are the journal-bearings. The pole-pieces C C in the present instance are at the ends of the cores A A, and are securely clamped to a bed-plate, G. It will, however, be observed that they may be situated in the middle of the cores or parallel magnets A A, as in the case of conse quent-pole machines, and might be cast inde pendently of the cores and mechanically connected thereto.

The machine here shown is one known as a vertical-magnet machine, but it is evident that no radical changes of construction are necessitated in case the magnets be horizontal. Should such be the case, only the lower polepiece need be provided with arms, though for greater stability the plan described is preferable.

lVhen in the construction of a machine the supports or arms E E, or their substantial equivalents, are cast integral with the solid pole-pieces, great saving of time and expense is effected, from the fact that the whole mass of iron may be placed in a lathe and hollowed out and trued without difficulty. In other respects the advantages which follow from the above-described construction are that the accuracy of running of the machine is not affected by the warping or distortion of the base or bed plate, and a more substantial and durable machine produced.

I am aware that in machinery of various kinds it has been common to mount shafts forming part of the mechanism in bearings in the frame of the machines themselves. \Vhile, therefore, I do not claim broadly hearings or supports for the same integral with the frame of the machines of which they form a part,

hat I claim as new, and desire to secure by Letters Patent, is-- 1. In a dynamo or magneto electric machine, the combinatiomwith an armature, ofiield-magnets having pole-pieces between which the same rotates, and solid arms or extensions cast in one piece with said pole pieees and constituting; supports for the journals of the arma sure-shaft, as described.

2. In a dynamo or magneto electric ma chine, the combination, with a cylindrical armature F, of magnets A A, pole-pieces O U, arms E E,extending from the same, and plates 1) D, containing bearings for the armatureshaft, and clamped to the arms E E in substantially the manner indicated.

In testimony Whereot'I have hereunto set my hand this 7th day of July. 1882.

EDWARD \VESTON. Witnesses:

W. FRIsBY, RAYMOND F. BARNES.

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