Chucks or sockets – Socket type – Lost motion
Patent
1985-01-22
1987-03-10
Schran, Donald R.
Chucks or sockets
Socket type
Lost motion
267155, 173131, B25D 1708
Patent
active
046486097
ABSTRACT:
A torsion or hairpin spring external attachment for power hammers has eye ends respectively bottomed on the power hammer casing and on the tool driven by the hammer for maintaining the tool against the work and supporting a load on the power hammer while reclaiming an optimum spacing of the hammer relative to its anvil after each hammer blow to increase the efficiency of the power hammer. The attachment spring is easily applied and removed and can be supplied in a wide range of stiffness to accommodate different work conditions with the stiffness of the spring increasing with the hardness or impact resistance of the work. Downcrowding loads on the power hammer can be increased while maintaining the optimum spacing of the hammer and anvil to increase the work output of the power hammer. The spring attachment permits rotation of the power driven tool.
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Construction Robotics, Inc.
Schran Donald R.
Wolfe James L.
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