1851 Great Exhibition: Official Catalogue: Class X.: J. Adcock
364. ADCOCK, J., Teignmouth — Inventor and Designer.
Registered approximative comparative scale of the diameter and quadrant of the circle, designed to facilitate the measurement of standing timber.
Drawing of a paddle-wheel, illustrative of an arrangement by which the paddles may be made to enter and leave the water at the most effective angle.
Drawings of an invention for determining and registering the duration of the courses of the wind at stationary places within any given time; of a new water-wheel, applicable to falls of any height, and capable of working under water without much diminution of effect; and of a new tug-boat, intended for canal tunnels of great length, which have not a towing-path, and where steam power cannot be applied.