Workpiece treating apparatus

Claim 2

A workpiece treating arrangement comprising a drum having an inner surface, means for rotating said drum, a centrifugal throwing wheel for treating workpieces within said drum, a cantilevered tube for supporting said centrifugal throwing wheel, a spiral conveyor connected to the inner surface of said drum and extends over substantially the length of said drum, an infeed tube connected to the entrance end of said drum, a second spiral conveyor being connected to the inner surface of said infeed tube.

Claim 3

An arrangement as set forth in claim 1 wherein said second spiral conveyor projecting into said infeed tube a greater distance than the first spiral conveyor projects into said drum.

Claim 4

An arrangement as set forth in claim 2 wherein said drum and said infeed tube are of one piece construction.

Claim 5

An arrangement as set forth in claim 3 wherein a center feed tube is connected to said second spiral conveyor coaxial with said infeed tube.

Claim 6

An arrangement as set forth in claim 3 wherein a plurality of drain holes are provided in said drum.

Claim 7

An arrangement as set forth in claim 3 wherein an oscillating conveyor is disposed at the exit end of said drum, a screen deck being on said oscillating conveyor, and rubber abrasive retaining curtains being above said oscillating conveyor.

Claim 8

A workpiece treating arrangement comprising a drum, means for rotating said drum, a plurality of throwing wheels for treating workpieces within said drum, a cantilevered tube having a hollow interior, said cantilevered tube supporting said centrifugal throwing wheels within said drum, feed spouts for said throwing wheels communicating with the interior of said cantilevered tube, means for distributing the treating particles through said cantilevered tube to said feed spouts.

Claim 9

A workpiece treating arrangement comprising a drum, means for rotating said drum, a plurality of throwing wheels for treating workpieces within said drum, a cantilevered tube having a hollow interior, said cantilevered tube supporting said centrifugal throwing wheels within said drum, feed spouts for said throwing wheels communicating with the interior of said cantilevered tube, means for distributing the treating particles through said cantilevered tube to said feed spouts.

Claim 10

An arrangement as set forth in claim 7 including traversing means for moving said cantilevered tube into and out of said drum.

Claim 11

An arrangement as set forth in claim 8 including feed means for feeding treating particles into said cantilevered tube, and wherein said distributing means includes an elongated rotatable screw in said cantilevered tube for distributing the treating particles therein to said feed spouts.

Claim 12

An arrangement as set forth in claim 9 including electrical cables and hose means for said wheels disposed within the interior of said cantilevered tube.

Claim 13

An arrangement as set forth in claim 9 including oscillating means for rotating said cantilevered tube and its throwing wheels.

Claim 14

An arrangement as set forth in claim 9 including a plurality of motors for driving said wheels, each motor having a drive shaft, each of said wheels being mounted directly on the shaft of a respective motor.

Claim 15

An arrangement as set forth in claim 9 wherein said drum includes an exit end for the removal of workpieces and including a structural member for closing the exit end of said drum, and said cantilevered tube being secured to said structural member.

Claim 16

An arrangement as set forth in claim 13 wherein said structural member is suspended from a horizontal monorail for horizontal movement toward and away from said drum.

Claim 17

A workpiece treating arrangement comprising a drum, means for rotating said drum, feed means for feeding work pieces into said drum, throwing wheel means disposed within said drum for treating the workpieces during the rotation of said drum, said throwing wheel means includes a plurality of centrifugal throwing wheels each having a runnerhead, a plurality of throwing vanes radially mounted on each runnerhead, drive means for rotating said runnerheads and said vanes, particle feed means for supplying treating particles to said runnerheads to be discharged from Said vanes, and universal mounting means for permitting each wheel to pivot about a plurality of axes.

Claim 18

A workpiece treating arrangement comprising a drum, means for rotating said drum, feed means for feeding work pieces into said drum, throwing wheel means disposed within said drum for treating the workpieces during the rotation of said drum, said throwing wheel means includes a plurality of centrifugal throwing wheels each having a runnerhead, a plurality of throwing vanes radially mounted on each runnerhead, drive means for rotating said runnerheads and said vanes, particle feed means for supplying treating particles to said runnerheads to be discharged from Said vanes, and universal mounting means for permitting each wheel to pivot about a plurality of axes.

Claim 19

A barrel for use in a workpiece treating arrangement comprising a drum having an inner face and having a plurality of drain holes, a first spiral conveyor on the inner face of said drum along the length of said drum, an infeed tube at one end of said drum, said infeed tube having an inner face and an entrance end, said infeed tube and said drum being of one piece construction, a second spiral conveyor on the inner face of said infeed tube projecting into said infeed tube a greater distance than said first spiral conveyor projects into said drum, a center feed tube connected to said conveyor, said center feed tube being coaxial with said infeed tube, said second spiral conveyor comprising a plurality of flights, said flights including a first flight being disposed near the entrance end of said infeed tube and at least the first flight of said second spiral conveyor having an axial opening, and a bridging element disposed at the entrance of said infeed tube and extending to said axial opening of said first flight and connected thereto.

Claim 20

A barrel for use in a workpiece treating arrangement comprising a drum having an inner face and having a plurality of drain holes, a first spiral conveyor on the inner face of said drum along the length of said drum, an infeed tube at one end of said drum, said infeed tube having an inner face and an entrance end, said infeed tube and said drum being of one piece construction, a second spiral conveyor on the inner face of said infeed tube projecting into said infeed tube a greater distance than said first spiral conveyor projects into said drum, a center feed tube connected to said conveyor, said center feed tube being coaxial with said infeed tube, said second spiral conveyor comprising a plurality of flights, said flights including a first flight being disposed near the entrance end of said infeed tube and at least the first flight of said second spiral conveyor having an axial opening, and a bridging element disposed at the entrance of said infeed tube and extending to said axial opening of said first flight and connected thereto.

Claim 21

An arrangement as set forth in claim 15 wherein said throwing wheel means is mounted on a cantilevered tube.

Claim 22

An arrangement as set forth in claim 17 including traversing means for moving said cantilevered tube into and out of said drum.

Claim 23

An arrangement as set forth in claim 17 wherein said cantilevered tube has a hollow interior and including a feed spout on each throwing wheel communicating with the interior of said cantilevered tube, and means for distributing the treating particles through said cantilevered tube to each feed spout.

Claim 24

An arrangement as set forth in claim 18 wherein said drum includes an inner surface and an entrance end and said arrangement includes an infeed tube connected to the entrance end of said drum and a second spiral conveyor being connected to the inner surface of said infeed tube.

Claim 25

An arrangement as set forth in claim 20 wherein a center feed tube is connected to said second spiral conveyor coaxial with infeed tube.