dead-stroke

from The Collaborative International Dictionary of English v.0.48

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]