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Expired
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LANCASTER AND TONGE Ltd
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LANCASTER AND TONGE Ltd
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Application filed by LANCASTER AND TONGE LtdfiledCriticalLANCASTER AND TONGE Ltd
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Publication of GB190429563ApublicationCriticalpatent/GB190429563A/en
Compressors, Vaccum Pumps And Other Relevant Systems
(AREA)
Abstract
2 9 , 5 6 3. Butterworth, J., and Lancaster & Tonge. Dec. 31. Drawings to Specification. Pistons.-The working surfaces of piston rings are hardened by chilling.
GB190429563D1904-12-311904-12-31Improvements in Piston and like Rings.
ExpiredGB190429563A
(en)
Method for increasing the wear resistance of the friction surfaces of cylinders of engines, piston rings or other parts of machines and transmissions made of cast iron