374 Description of a Screw Press . 
the purpose of pressing bodies in general, but more par- 
ticularly cheeses, apples, linen, &c. because such tilings 
require a firm and unrelaxing pressure and this is a 
peculiar advantage incident to this machine; for after it 
is set, or the spring screwed well up, it will be found, 
that as the article pressed shrinks from it, so the spring, 
owing to its peculiar expanding power, gradually follows 
the object of its pressure, and hence continues to main- 
tain an uniform and equal action on the body on which 
it is placed. This, in cheese -making, will be found pe- 
culiarly advantageous; for it is from this very cause of 
want of sufficient pressing that cheeses are frequently so 
very bad. Were the curd entirely separated from the 
impure and contaminating mixture of the whey, which 
must be effected by the regular action of this machine, 
we should always have the cheese firm and wholesome ; 
and, I have not a doubt, the press will be found equally 
useful in all other cases, and answer every purpose, even 
beyond expectation, to which it is adapted. I am, &c. 
William Bowler, 
To Charles Taylor, Esquire. 
Reference to the Engraving. Plate 11, Fig . 11. 
AA, the two upright sides, or frames of the press. 
B, the cross piece which connects them at the top, hav- 
ing a hole in its centre, for the screw. 
C, a strong block of wood, into which the two sides of 
the press are firmly morticed. 
B, the box, in which the article to be pressed is placed. 
This box has a number of holes in its bottom, through 
which the liquid matter when pressed out passes, and is 
discharged from the mouth of the spout E, a small hol- 
low being left under the box, to allow its passage to the 
spout. A loose wooden cover fits into the box D, and 
upon it is fastened a stout piece of timber F, and an iron 
