TRIPHAMMER • DICTIONARY ONE.COM • Definition of Triphammer

... advanced in the direction of the end of the shed where Frank had arranged his trap. Every one of them felt his heart beating like a triphammer as the sound of writhing, accompanied by groans, ...

— The Airplane Boys among the Clouds - or, Young Aviators in a Wreck • John Luther Langworthy

... This position for a second promises repose; but almost immediately his head begins to pound the seat, and beat a lively rat-a-plan on the board. The head of a wooden idol couldn't stand this treatment more than a minute. The fiddler twisted and turned, but his head went like a triphammer on the seat. I have never seen a devotional attitude so deceptive, or one that produced less favorable results. The young man rose from his knees, and ...

— Baddeck and That Sort of Thing • Charles Dudley Warner