Dual-flow band screen and process for substituting it for a through-flow band screen
AssigneeE. Beaudrey & Co. Societe Anonyme
InventorPhilip Jackson
Life of this patent
Estimating the term…
Abstract
A dual-flow band screen includes a carrying frame and a screening band which is mounted so as to move in an endless loop on the frame. A support wall is associated with the carrying frame, which support wall overall extends perpendicularly to generatrices of its screening band, while possessing an opening opposite the latter, and which support wall laterally forms engagement lips by means of which it is capable of engaging with the guides in a sluice.
Claims10
A dual-flow band screen for a sluice, said dual-flow band screen comprising a carrying frame, a screening band mounted for movement in an endless loop on said carrying frame, and a support wall mountable in guides provided in the sluice and cooperable with said carrying frame and positioning said carrying frame in the sluice, said support wall extending perpendicularly to generatrices of said screening band and generally parallel to said carrying frame, an aperture in said support wall being wholly contained within the contour defined by said screening band, said support wall having lips for engagement in the guides.
A method of replacing a dual-flow band screen for a through-flow band screen engaged in guides in a sluice, in which said dual-flow band screen comprises a carrying frame, a screening band mounted on said carrying frame for movement in an endless loop, the method comprising the stages of:
- providing a support wall being mountable in guides in the sluice and cooperable with the carrying frame and positioning the carrying frame in the sluice, the support wall extending perpendicularly to the generatrices of the screen band and generally parallel of the carrying frame, and an aperture in the support wall being wholly contained within the contour defined by screening band, the support wall having lips for engagement with the guides in the sluice;
- removing said through-flow screen from the guides in the sluice;
- and inserting the support wall into said guides.
Dependencies are inferred from the claim text.