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Expired
Application number
Inventor
Harris Lake Henry
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Ingersoll Sergeant Drill Co
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Ingersoll Sergeant Drill Co
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Application filed by Ingersoll Sergeant Drill CofiledCriticalIngersoll Sergeant Drill Co
Application grantedgrantedCritical
Publication of GB190417585ApublicationCriticalpatent/GB190417585A/en
17,585. Lake, H. H., [Ingersoll-Sergeant Drill Co.]. Aug. 12. Percussive hand tools.-Figs. 1 and 3 show in section the upper portion of a pneumatic hammer, in which the admission valve is situated at the back of the power cylinder, and so arranged as to prevent the compressed motive fluid from passing through the handle and cooling the same. Motive fluid is admitted to the chamber g through the ports h, j and passes to the cylinder through the ports k, l when the valve is lowered by depressing the push-piece v. The spring - controlled valve may carry a friction roller at u which engages with the end of the lever t.
GB190417585D1904-08-121904-08-12Improvements in Throttle Valve Mechanism for Pneumatic Hammers.
ExpiredGB190417585A
(en)