Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1975-01-15
1976-04-06
Whitehead, Harold D.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
B24B 1916
Patent
active
039480062
ABSTRACT:
An improved adjustable diamond faceting platform is described of the type adapted to be mounted on a tong and suitable for supporting a dop. The adjustable diamond faceting platform of the present invention includes a worm gear mounted on the platform. The worm gear has an axis of rotation and includes means for connecting a dop to the worm gear for common rotation about the axis. A worm is rotatably mounted on the platform proximate to the worm gear for meshingly engaging the latter and for rotating the same with corresponding rotation of the worm. The worm is mounted with clearance for limited transverse movements in directions towards and away from the worm gear. The worm is provided with smooth cylindrical shaft portions at each end disposed within the platform. Low friction sleeves are mounted on the shaft portions and adjustable bearing means, in the form of set screws, are mounted on the platform for engaging the sleeves and applying selective pressures to the latter in the direction of the worm gear. In this manner, suitable adjustment of the set screws compensate for tolerances and wear and provides positive engagement between the worm gear and the worm while the latter is permitted to rotate within the sleeves.
REFERENCES:
patent: 1284008 (1918-11-01), White
patent: 1536018 (1925-04-01), Kelley
patent: 2431907 (1947-12-01), Barna
patent: 2449156 (1948-09-01), Wiltig
patent: 3056709 (1962-10-01), Rising
patent: 3815289 (1974-06-01), Hoffman
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