Ceramic, air-cooled smoothing bar
AssigneeGeneral Electric Company
InventorJohn A. Rothlisberger
Life of this patent
Estimating the term…
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).
Claims16
A smoothing bar for use in a sanding apparatus comprising:
- an elongated metal bar formed to include a belt face, a mounting face and a pair of opposite side faces;
- a pair of cooling passages formed in said bar and extending lengthwise from one end of the bar to the other in substantially parallel relationship;
- and a plurality of air holes extending from each cooling passage and opening on an adjacent one of said opposite side faces.
A smoothing bar for use in a sanding apparatus comprising:
- an elongated metal bar formed to include a belt face, a mounting face and a pair of opposite side faces, a plurality of ceramic tiles adhered directly to said belt face;
- a pair of cooling passages extending lengthwise of said bar from one end of the bar to the other;
- and a plurality of air holes arranged along the length of each cooling passage, and opening on an adjacent one of said opposite side faces.
In a sanding apparatus including a drive roll, at least two feed rolls, a guide roll and an endless belt arranged to engage each of said rolls to thereby define a closed loop;
- and an elongated smoothing bar located between said two feed rolls with a back side of said belt passing over said smoothing bar, the improvement comprising said smoothing bar constructed of an elongated metal bar having a mounting face, a belt face and a pair of opposite side faces;
- a pair of cooling passages formed in said bar and extending longitudinally from one end of the bar to the other, and a plurality of air shower holes communicating with each of said cooling passages and opening on an adjacent one of said opposite side faces to thereby discharge cooling air onto the back side of said endless belt on either side of said smoothing bar.
Dependencies are inferred from the claim text.