Exhibited at Windsor. 
539 
wheels of carriages, carts, &c. The Ewbank cap wrench con- 
sists of two jaws, about 9 inches in length, which are pivoted 
at one end, each of which is shaped at the other end so as to fit 
on two of the flats of the oil cap. A long T-shaped handle 
passes loosely through a hole in one of the jaws (at right angles 
to the length of it), and screws into the other jaw. By this 
'screw the jaws are adjusted to fit any size of oil cap, and to 
grip it firmly, the long handle giving great leverage for the pur- 
pose of removing or replacing the cap. The wrench is very 
powerful and exceedingly simple in construction, and, being 
adjustable, will fit different sized caps. 
Messrs. Ransomes^ Sims ct Jefferies showed Davis's Patent 
Sulphurator (Art. 5015), which consists of a wrought-iron frame 
mounted on a pair of wrought-iron road wheels, 3 feet 6 inches 
Fig. 24. — Sulphurator. 
in diameter and 31 inches wide, connected to an axle by the 
ordinary ratchet attachment. The front of the frame has secured 
to it a bracket turning down and forming an ordinary attach- 
ment for a single horse, but there are no shafts, the machine 
being guided from the rear by means of a pair of barrow 
handles. 
Mounted on the wrought-iron frame is a fan having a wheel 
with curved blades, about 18 inches in diameter with 9-inch in- 
lets. The lower or delivery side of the fan case is placed within 
7 inches of the ground, and the blast of air is driven out 
parallel to it into a breeches pipe, terminating in a pair of jDipes 
6 inches in diameter and about 1-1 inches long, slightly curved 
