An Account of the Manner of bending Planks in His MajeĹżty’s Yards at Deptford, &c. by a Sand-heat, invented by Captain Cumberland.
By Robert Cay, EĹżq;
The place, where the Planks lie to be Ĺżoftened in the Stove, is between two Brick-Walls; of Ĺżuch a length, height, and diĹżtance from each other, as Ĺżuffice to admit the largeĹżt, or to hold a good number of the Ĺżmaller Sort: the bottom is of thick Iron Plates, Ĺżupported by Ĺżtrong Bars; under the middle of which, are two Fire-places, whoĹże Flews carry the Flame towards the Ends.
The Planks are laid in Sand; the loweĹżt about Ĺżix or eight Inches above the Iron-Plates, they are well cover’d with the Sand, and Boards laid over all, to keep in the Heat. The Sand is moiĹżtened with warm Water, (for which purpoĹże they have a Cauldron adjoyning to the Stove) and if the Timber be large, and intended to be very much bent, Ĺżo that it muĹżt lie long in the Stove, they water the Sand again, once in 8 or 10 Hours.
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