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999,662
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Aug. 01, 1911
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Steam Hammer
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Frederick E. Lane |
Keene, Cheshire County, NH |
Abstract:
The invention relates to a single-frame steam hammer in which the hammer is adapted to operate between guides secured on one side of an overhanging portion of the frame and the object of the improvement is to secure and hold the guides to the frame in such a manner that the abutting and adjacent portions of the frame will not be crystallized or fractured by the concussions of the hammer. When guides for the hammer are secured to the face of the frame merely by means of bolts passed through the guide into the body of the frame, the shocks and strains caused by the blows of the hammer soon bend and shear the bolts and render the guides useless to properly control the hammer, and furthermore the shocks and strains ultimately fracture the frame, usually along the line of the bolt holes. And when the frame is extended as jaws to embrace the outer edges of the guides and securing bolts are passed laterally through the width of the guides and the extended portions of the frame, the shocks and strains of the hammer soon crystallize and fracture the extended portions of the frame, which receive the full force of the concussions and vibrations of the hammer. These difficulties are overcome by constructing the frame with extensions or jaws adapted to abut the outer sides of the guides, in combination with securing bolts passed through the thickness of the guides into and through the body of the frame; whereby the tensile strength of the bolts saves the frame jaws from the twisting strains and vibrations of the hammer and prevents the jaws from being crystallized or fractured, and the abutment of the jaws against the outer edges of the guides squarely stops the guides from lateral movement and prevents any bending or shearing of the bolts.
Claim:
A power hammer including a frame having forwardly-extending jaws on each side, hammer guides in the angles formed by the face of the frame and the inner sides of the jaws, securing bolts extending rearward through the thickness of the guides and the body of the frame and adapted to clamp the rear sides of the guides against the face of the frame, and adjusting wedges between the outer sides of the guides and the inner sides of the jaws, whereby the jaws form positive abutments for the guides, and in turned lips on the forward edges of the jaws engaging the forward edges of the wedges. |
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Steam Hammer
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Albert C. Creter |
Massillon, Stark County, OH |
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