Claims
- 1. Apparatus for the separation by size of particulate material such as wood chips, comprising
- a plurality of parallel shafts arranged in two groups one on each of the opposite sides of a longitudinal central axis parallel to said shafts,
- the axes of said shaft of each group lying substantially in a plane inclined at an acute angle upwardly from said axis,
- each of said shafts having a plurality of discs fixedly mounted thereon, the discs on each shaft being interleaved with the discs on adjacent shafts,
- means connected to said shafts for driving each group so that the discs thereon rotate in the direction away from said axis in the upper part of their rotation,
- and means at one end of said apparatus for feeding particulate material to be sieved into said apparatus longitudinally of said central axis
- whereby the rotating discs cause the particulate material to be thrown upwardly and outwardly and distributed over said discs, the material of a size less than the spacing between the intermeshed discs falling between said discs, the material larger than said spacing being moved toward and discharged from the opposite end of said apparatus.
- 2. Appartus as set forth in claim 1 wherein said acute angle is between about 30.degree. and 40.degree..
- 3. Apparatus as set forth in claim 2 wherein said apparatus axis is inclined downwardly from said one end.
- 4. Apparatus for the separation by size of particulate late material such as wood chips, comprising
- a plurality of parallel shafts arranged in a group on one side of a longitudinal axis parallel to said shafts,
- the axes of said shafts lying substantially in a plane inclined at an acute angle of between 30 degrees and 40 degrees upwardly from said axis,
- each of said shafts having a plurality of discs fixedly mounted thereon, the discs on each shaft being interleaved with the discs on adjacent shafts,
- means connected to said shafts for driving the discs thereon to rotate in the direction away from said axis in the upper part of their rotation,
- and means at one end of said apparatus for feed particulate material to be sieved into said apparatus longitudinally of said longitudinal axis,
- whereby the rotating discs cause the particulate material to be thrown upwardly and outwardly and distributed over said discs, the material of a size less than the spacing between the intermeshed discs falling between said discs, the material larger than said spacing being moved toward and discharged from the opposite end of said apparatus.
Priority Claims (3)
Number |
Date |
Country |
Kind |
7712674 |
Nov 1977 |
SEX |
|
7801161 |
Jan 1978 |
SEX |
|
7809646 |
Sep 1978 |
SEX |
|
BRIEF DESCRIPTION OF THE INVENTION
This is a continuation of application Ser. No. 142,147, filed Apr. 21, 1980, now abandoned, which is a continuation-in-part of application Ser. No. 068,546, filed Aug. 22, 1979, which was a continuation of application Ser. No. 954,843, filed Oct. 26, 1978, both now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (8)
Number |
Date |
Country |
2221577 |
Oct 1974 |
FRX |
158984 |
May 1957 |
SEX |
265461 |
Feb 1927 |
GBX |
303970 |
Jan 1929 |
GBX |
455307 |
Oct 1936 |
GBX |
857826 |
Jan 1961 |
GBX |
311669 |
Aug 1971 |
SUX |
447179 |
Apr 1975 |
SUX |
Continuations (2)
|
Number |
Date |
Country |
Parent |
142147 |
Apr 1980 |
|
Parent |
954843 |
Oct 1978 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
68546 |
Aug 1979 |
|