Image: Piston, sprung ring (Heat Engines, 1913)

Description: Fig. 53 Buckley's Patent Piston, a design of steam engine piston fitted with two sealing rings, sprung against the cylinder walls by the action of an internal spring.
Title: Piston, sprung ring (Heat Engines, 1913)
Credit: Scan from Prof. William Ripper, Sheffield Univ. d.1937 (1913 edition of 1909 book. Originally published in 1889 as "Steam", but later expanded to cover internal combustion engines and so re-titled.) Heat Engines, London: Longmans, pp. fig. 53
Author: Andy Dingley (scanner)
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