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Workpiece treating barrel
| Details |
Inventors: Carpenter, Jr., James H.; Bradley, Charles H.; Ixer, Bernard W.;
Assignee: The Carborundum Company (Niagara Falls, NY)
Primary Examiner: Smith; Gary L.
Assistant Examiner:
Attorney, Agent or Firm: Dougherty; David E., Holt; William H.
A barrel for use in treating workpieces, such as cleaning, scouring, deburring, etc., with abrasive blasting particles, high pressure fluid jets, etc. The barrel is intended to be rotated and includes a novel spiral flight which pushed workpieces through the barrel, a novel arrangement of drain holes for voiding the barrel of debris such as blast particles, flashings, cleaning fluid, etc., and includes novel turning cleats which cause workpieces to turn over within the barrel to expose various portions thereof to a blast stream of particles or fluid. |
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DETAILED DESCRIPTION We claim: 1.
An abrasive blast-resistant barrel for use in blast treatment of workpieces such as metal castings and the like; said blast-resistant barrel being constructed of a wear resistant material for withstanding the impact of abrasive particles and the like incident to a blast treatment of said workpieces and being generally tubular and including an inner wall and an outer wall; said barrel having a hollow interior, an open first end for passing a series of workpieces into said barrel and an open second end for passing workpieces out of said barrel; workpiece pushing means constructed of a wear-resistant material for withstanding the impact of abrasive particles and the like disposed on said inner wall for pushing each of said workpieces along the length of said barrel from adjacent said first end toward and out of said second end; said workpiece pushing means including a leading face portion on a side thereof disposed toward said open second end for engaging workpieces and pushing said workpieces toward said open second end and a trailing face portion on a side thereof disposed toward said open first end; the improvement comprising said trailing face portion being inclined in a direction toward said open second end for allowing workpieces to move upwardly and over said trailing face portion toward said open second end.
2.
An abrasive blast-resistant barrel as defined in claim 1 wherein said workpiece pushing means forms a spiral flight extending along said inner wall.
3.
An abrasive blast-resistant barrel as defined in claim 2 wherein said spiral flight defines an expanding helix gradually increasing in pitch toward said open second end.
4.
An abrasive blast-resistant barrel as defined in claim 1 wherein said workpiece pushing means, in a section normal to said inner wall, defines a triangular section.
5.
An abrasive blast-resistant barrel as defined in claim 4 wherein said triangular section defines a right triangle, and said leading face portion being disposed normal to said inner wall
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Gutter-related 
