Apparatus and method of treating the internal surfaces of a timber barrel with an abrasive
OwnerJonathan Lindsay BLAKEMAN, Kimberley John BUIST WALKER +1inventors
InventorsJonathan Lindsay BLAKEMAN, Kimberley John BUIST WALKER, Ronald John MCDONALD
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Abstract
Apparatus 10 and method for cleaning, rejuvenating or treating the internal surfaces of a timber barrel 28 with an abrasive, the apparatus 10 comprising a clamping arrangement that includes at least one clamp 21-24 for clamping the barrel 28. The clamp 21-24 being rotatable to rotate the barrel 28 about its axis and the clamping arrangement being operable to tilt the axis of the barrel 28 during rotation through at least about 20°, preferably 25-40%, to either side of horizontal.
Claims23
Apparatus for cleaning, rejuvenating or treating the internal surfaces of a timber barrel with an abrasive, the apparatus comprising a clamping arrangement that includes at least one clamp for clamping the barrel, the clamp being rotatable to rotate the barrel about its axis and the clamping arrangement being operable to tilt the axis of the barrel during rotation through at least about 20°, preferably 25-40%, to either side of horizontal.
A method of cleaning, rejuvenating or treating the internal surfaces of a timber barrel with an abrasive, the method involving;
- a. inserting an abrasive into a timber barrel,
- b. clamping each end of the barrel with clamps,
- c. rotating the clamps to rotate the barrel about its axis,
- d. tilting the axis of the barrel during rotation through at least about 20°, preferably 25-40%, to either side of horizontal.
An abrasive for use in a method or apparatus for rejuvenating or treating the internal surfaces of a timber barrel the abrasive comprising granular garnet or garnet gravel in the size range generally of about 1 mm-8 mm, more preferably 2 mm-5 mm and/or having a bulk density of about 2100 kg/m3±3%, specific gravity 4.0±3%, grain shape—sub-rounded to sub-angular.
Dependencies are inferred from the claim text.