om its surface; and if the exploding connected with cranks on the driving shaft of the engine. | water meets resistance, as in a closed boiler, the effect of the copy is known to be in existence. concussion will be greater than the regular steam pressure. For his experiment, Mr. Lawson had a plain… … sequent upon the wearing of their bearings, same results. But when the valve was opened at a pressure of 389 1b., ‘the boiler exploded is avoided. The invention consists in a pul- OF BOILER. with a loud report, scattering fragments of ley, which operates as a loose one, rigidly its shell, furnace,…
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