Fitting New Piston Rings In Steam Engines.

By an Engineer-in-Charge. The necessity for exercising the _greatest care in the fitting ot new piston rings is often overlooked by drivers and mechanics, and new rings are......

Lever-spring Suspension.

In our issue of the ist August of last year, we were enabled to give the first publication, together with an original drawing, of a combination of levers and helical springs......