Sieve device for separating a mixture of particulate...

B - Operations – Transporting – 07 – B

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B07B 1/08 (2006.01) B07B 1/06 (2006.01) B07B 1/42 (2006.01) B07B 1/44 (2006.01)

Patent

CA 1159406

ABSTRACT OF THE DISCLOSURE This invention provides an improvement in a sieve device for separating a mixture of particulate material into components of different sizes, the sieve device having a perforated sieve surface rotated by a central vertical shaft. The improvement resides in the provision of means for com- pensating for torsional shock loads applied to the sieve surface and shaft wherein the shaft is mounted on the housing and rigidly coupled to drive means for positioning the latter adjacent the housing. A spring device extends normal to the shaft and is interposed between the drive means and housing for resiliently absorbing torsional shock loads. With the use of this invention, the components of the drive set have a much longer duration of life and operational breakdowns are precluded.

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