Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1981-09-14
1983-09-20
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
5116574, 51238S, B24B 504
Patent
active
044047720
ABSTRACT:
A cylindrical grinding machine comprising chucks for supporting and rotating a workpiece about a selected axis, a wheelhead assembly selectively displaceable transverse to the axis including a rotatable grinding wheel for effecting stock removal from the surface of the rotating workpiece, a workrest assembly including a jaw having a workpiece engaging shoe, and means for selectively displacing the jaw for opposing the deflective force exerted by the grinding wheel on the rotating workpiece as it is machined, and means for monitoring the wear of the jaw including an indicator gauge mounted on the workrest jaw including a visually observable needle, a control arm pivotally secured to the workrest jaw having a first workpiece engaging end and a second end operatively associated with the indicator gauge, the control arm having a first position whereat the control arm first end leads the workrest shoe and a second position whereat the control arm first end is flush with the workrest shoe, and a spring for biasing the control arm towards the first position for maintaining the control arm first end in constant tracking engagement with the surface of a rotating workpiece whereby jaw wear will be indicated by the oscillation of the gauge needle and the degree of wear will be indicated by the magnitude of such oscillation.
REFERENCES:
patent: 1543795 (1925-06-01), Rockwell
patent: 1914578 (1933-06-01), Norton
patent: 2750715 (1956-06-01), Farnam
patent: 3503159 (1970-03-01), Schaller
patent: 3731566 (1973-05-01), Kurimoto et al.
patent: 4055027 (1977-10-01), Freddi
patent: 4324073 (1982-04-01), Belthle
Adolphson K. Bradford
Litton Industrial Products Inc.
Smith Spencer T.
Whitehead Harold D.
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