Ceramic, air-cooled smoothing bar

Details Ceramic, air-cooled smoothing bar Ceramic, air-cooled smoothing bar

1992-11-23

1994-03-22

Kisliuk, Bruce M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51148, 51266, B24B 2108, B24B 2110

Patent

active

052953297

ABSTRACT:
In a sanding apparatus (10) including a drive roll (14), at least two feed rolls (16, 18), a guide roll (20) and an endless belt (12) arranged to engage each of the feed rolls to thereby define a closed loop; and an elongated smoothing bar (30) located between the two feed rolls with a back side of the belt passing over the smoothing bar, an improvement wherein the smoothing bar is constructed of an elongated metal bar having a mounting face (36), a belt face (34) and a pair of side faces (38, 40). At least one cooling passage (42) is formed in the bar and extends longitudinally from one end of the bar to the other. A plurality of air shower holes (46) are arranged to discharge cooling air onto the back side of the endless belt (12).

REFERENCES:
patent: 552066 (1895-12-01), Leach
patent: 2162279 (1939-06-01), Herchenrider
patent: 2477602 (1949-08-01), Herchenrider
patent: 2527554 (1950-10-01), Kimball
patent: 3049839 (1962-08-01), Smith
patent: 4656790 (1989-01-01), Mukai
patent: 4662121 (1987-05-01), Ginter
patent: 5101600 (1992-04-01), Morris
"GE Industry Sales & Services", sketch entitled Aluminum Smoothing Bar Holder, Jul. 16, 1991.

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