US Patent: 1,679,457 - Dynamo-electric machine


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US Patent: 1,679,457

Dynamo-electric machine

Patentee:

John B. Wiard (exact or similar names) - Lynn, MA

USPTO Classifications:

292/307R, 310/63

Tool Categories:

electrical devices : electric motors : motor cooling

Assignees:

H. C. Dodge, Inc. - South Boston, MA

Manufacturer:

H. C. Dodge, Inc. - South Boston, MA

S. A. Woods Machine Co. - Boston, MA

Witnesses:

Unknown

Patent Dates:
Applied:	Aug. 03, 1927
Granted:	Aug. 07, 1928

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for S. A. Woods Machine Co.

Description:

"This invention relates to dynamo electric machines and more particularly to improvements designed to dissipate the heat arising from internal losses in such machine. The invention has for its object the provision of an effective cooling or ventilating system embodied in the machine itself in simple, compact form particularly, though not exclusively, intended for high speed direct-connected, induction motors where the constructional features render the ordinary methods of cooling impracticable... one embodiment of the invention in an alternating current motor of the induction type which is mounted on the frame of a wood-working machine directly connected to drive a working part thereof, such as the cutter head 5."

Harry C. Dodge was later the president of S. A. Woods Machine Co., and it is my hypothesis that he started as a motor manufacturer with his own firm and was subsequently bought out by S. A. Woods Machine Co. S. A. Woods became well known for their very high quality motor, including direct-machine-drive applications as described in this patent. This patent is an improvement on the inventor's earlier patent 1,360,483.