1851 Great Exhibition: Official Catalogue: Class VI.: Charles M. Barker
From Graces Guide
417. BARKER, CHARLES M., 22 Portsmouth Place, Kennington Lane — Inventor, Patentee, and Maker.
A curvilinear sawing machine, or ship's timber and ordinary sawing frame, for sawing one or any number of curves in timber, with bevils of various degrees. The machine requires only one attendant, and obtains a speed of 120 revolutions per minute.
A circular sawing, or rack bench. The machine consists of a number of circular saws (in segments) upon one shaft, so that by one direct feed the saws cut a piece of timber or deal into any desired number of parallel planks or boards.