Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1984-08-27
1986-08-05
Olszewski, Robert P.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51135R, 51147, 51238R, B24B 2120
Patent
active
046035109
ABSTRACT:
The belt grinder provides a variety of vertical and horizontal position grinding options. The three wheel machine head features an offset axial mount, counterbalanced to rotatably elevate selected work stations. Total revolution of the machine head through 360 degrees produces six distinctive stations to accommodate diverse grinding requirements. The drive motor is mounted centrally within the machine head assembly and it has a drive shaft extending into the V-belt housing. One of the three wheels in the machine head is the drive wheel and it has a drive shaft also extending into the V-belt housing. Step pulleys are mounted on these respective drive shafts to give the belt grinder a speed change capacity. Tension on the abrasive belt and the V-belt is applied or released in incremental order with the revolution of a leveraged step cam. Articulation between two spring loaded idler wheels in the machine head insures synchronous tension, eliminates slack belt slap, and maintains consistent belt line geometry. The belt grinder has a tubular platen that interfaces with the drive wheel which is helically serrated and they function to generate a centrifugal air flow through the platen interior. This design feature moderates the heat build generated by belt friction on the platen surface. The machine also has a system of dual purpose work rests that support the work piece and adjust to guard "at rest" work stations. Other hardware on the machine functions to evaluate machine dust, adjust V-belt and abrasive belt tension and adjust belt tracking camber.
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patent: 4316349 (1982-02-01), Nelson
Logan II Charles C.
Olszewski Robert P.
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