Device for skimming
First Claim
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1. A device for skimming a layer from a substrate over which the device is in use traversed, comprising:
- (i) a body;
(ii) an edge defined by the body for skimming the substrate;
(iii) a collector for material skimmed;
(iv) means for controlling the thickness of skim;
(v) the body having a curved wall for directing skimmed material into the collector; and
(vi) releasable clamping means for clamping the device to a blade mounted to a dozer, the clamping means comprising;
toggle means for clamping the device to the blade of the dozer, andinter-slidable blocks for clamping the device at at least one edge of the dozer blade, one of the inter-slidable blocks being mountable in a hole in the dozer blade.
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Abstract
The invention relates to a device mountable on a dozer blade for skimming a substance to a required depth, comprising an open box or collector for skimmed material, and a cutting edge of a rear wall which is used to effect skimming. The depth of skim is adjustable by height adjusting means which are described in the specification. A slow sand filter may be cleaned using a device according to the invention.
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Citations
19 Claims
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1. A device for skimming a layer from a substrate over which the device is in use traversed, comprising:
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(i) a body; (ii) an edge defined by the body for skimming the substrate; (iii) a collector for material skimmed; (iv) means for controlling the thickness of skim; (v) the body having a curved wall for directing skimmed material into the collector; and (vi) releasable clamping means for clamping the device to a blade mounted to a dozer, the clamping means comprising; toggle means for clamping the device to the blade of the dozer, and inter-slidable blocks for clamping the device at at least one edge of the dozer blade, one of the inter-slidable blocks being mountable in a hole in the dozer blade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification