Sieve

Details Sieve Sieve

1992-01-22

1993-03-16

Skaggs, H. Grant

Classifying, separating, and assorting solids

Sifting

Plane sifters

2093653, 209405, B07B 128

Patent

active

051936895

ABSTRACT:
A sieve has a rigid outer frame having longitudinally extending side beams and transverse end beams bridging the side beams, at least one cross bar in the frame extending generally parallel to the end beams, a mesh fixed to the cross bar and end beams, and spring elements resiliently supporting the cross bar on the frame for movement relative thereto. A drive reciprocates the outer frame at least generally parallel to the side beams and thereby also moves the cross bar. Thus the spring elements will transmit the movement of the outer frame to the inner cross bar with some delay. The mesh secured to the outer frame and cross bar will therefore be subdivided into panels that will be alternately tightened and slackened for excellent agitation of the material being sifted.

REFERENCES:
patent: 44974 (1864-11-01), Rice
patent: 612521 (1898-10-01), Landes et al.
patent: 979685 (1910-12-01), Mumford
patent: 2831576 (1958-04-01), Wehner

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