HYDRATION MEANS

摘要

HYDRATION MEANS The invention is concerned with an hydration means for wetting the exposed surface of a core void formed on the withdrawal of a core former from a construction panel comprising compacted gypsum or like particulate materials, and proposes the free suspension of a reciprocable spray head by a flexible small-bore tube through which a setting liquid is applied to the spray head from a cross-head with which the tube is connected in fluid flow relationship. If necessary, the spray head may be weighted, whilst an apertured guide plate through which the tube passes may be provided above the upper limit of movement of the spray head.