Results

GEC [BTH] Rugby photographs and negatives

Typed Notes and Test Reports [from Crompton-Parkinson?]

Siemens Brothers Dynamo Works Ltd: Price lists/catalogues

Seniors, Fifth Term ,Project: Design of a 37.5 HP Induction Motor

Letters to Kelsey-Hayes Wheel Company, re performance of induction motors

Notes for leaflet on the design of PAM change speed induction motors

'Induction Motors Old and New'

'A New PAM 2:1 Speed-changing Winding'

Printed paper on PAM

'Notes on Machinery and Kindred Topics'

Photograph of an Induction Motor

'Starting Conditions in Three-Phase Inductance Motors'

'Starting Conditions in Three-Phase Inductance Motors'

Four USA stamps, showing line drawing of Tesla, Steinmetz, Armstrong and Farnsworth with their inventions

Patent Specifications