Can Operators Convert To Ducer Gas With Confidence?

B ECAUSE of a heading that appeared over a summary of a paper on producer gas in our•issue dated May 15, I have been taken to task by a transport manager who is a well-known......

Plug Gauge With Ball-bearing Pilot

New Timken Device that Expedites Production and Inspection ; whilst Calling for Less Manipulative Skill in Use TOLERANCE in engineering parlance used to mean only' 1 the......

Centrifugal Governing To 0.3 Per Cent.

P ROMB'TED by the articles that have been by in this paper recently on the subject of governing by short-circuiting the h.t. ignition current, the Iso-Speedic Co., Ltd., Friar's......