dead-stroke
Webster's Dictionary (GCIDE)
Dead-stroke \Dead"-stroke`\, a. (Mech.) Making a stroke without recoil; deadbeat. [1913 Webster]
Dead-stroke hammer (Mach.), a power hammer having a spring interposed between the driving mechanism and the hammer head, or helve, to lessen the recoil of the hammer and reduce the shock upon the mechanism. [1913 Webster]