2. Three jack towels.
3. Two stout hooks to screw into the wall, or some firm object, to obtain fixed attachment.
4. A wetted roller 3 inches wide.
The complete apparatus is as follows:—
Apparatus.—1. A set of multiplying pulleys.
2. A leathern padded girth, 2 inches wide and 3 feet long, having at each end an iron ring.
3. A stout leathern belt about 6 inches broad, furnished with buckles, straps, and rings to fasten on to the thigh above the knee; a rope is run through the rings to connect the hook of the pulleys with the thigh.
4. Two strong iron hooks to screw into the wall, for fixing the apparatus.
5. Half-a-dozen yards of stout cord.
6. A hook, fitted with a buckle and strap, and hinged so that, by turning a pin, it at once disengages itself. If this is interposed between the pulleys and the hook fixed in the wall, the limb may be instantaneously released if desired.