[f. SPALL v.1]
1. A person employed in spalling.
1843. Holtzapffel, Turning, I. 171. The spallers employ heavy axe-formed or muckle-hammers, for spalling or scaling off smaller flakes.
1884. C. G. W. Lock, Workshop Receipts, Ser. III. 51/2. The poor ore of the spallers is subjected to the cobbling process.
1894. Labour Commission Gloss., Spallers, women who, with a mallet, break the tin-ore as it comes from the mine-shaft into small pieces.
2. A spalling-machine.
1877. Raymond, Statist. Mines & Mining, 37. The quartz can be delivered at the spaller for less than $2 per ton.