i5(> Description of a Screw Press. 



pqiial action on the boclv on which it is placed. This, in 

 cticese-making, will be found peculiarly advantageous ; for 

 it is tVoni this very cause of w;;nt of sutticicnt pressing that 

 cheeses are frequently so very l>ad. Were the curd entirely 

 separated from the impure and contaminating mixture of 

 the whey, which must he cfiected by the regular action of 

 this machine, wc ;^hou!d 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 beyoutl expectation, to which it is adapted. 

 I have the honour to be, &c. 



William Bowler. 

 Charles Tai/Ior, Esq. 



Hcferencc to the Engraving of Mr. JFilUam Bowler's 

 Screw Press. Plate F. Fig. 2. 



A A, the two upright sides, or frames of the press. 



B, the cross piece which connects them at the top, having 

 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. 



D, 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 dis- 

 charged from the mouth of the spout E, a small hollow 

 bei:ng 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 plate G, for 

 the point of the screws of the press to act upon. 



H, the male screw of the press, working in a fcmafe 

 screw, in the centre of the strong cross piece f , which cross 

 piece slides up and down in grooves within the- two sides of 

 the fraine, one of which grooves is shown in the plate, and 

 about half the length of the side piece. 



K, the upper part of the iron screw, on which the handle 

 T^, which moves it, is placed upon a square. The iron of 

 the screw is onlv wormed about half its length. 



M, a strons; spiral spring, made of iron wire, or iron 

 rod, placed in the centre of the cross pieces B and I; this 

 spring presses downwards against the cross piece I, forcing 

 it as low down as the side grooves will permit, The male 

 t-crcw H lies within the circle of this spiral ; and, when th? 

 screw is turned, passes through the tcnialc screw below it, 

 and acts \ipon the iron plate (i, under which the matter to 

 be pressf.d i- placed, bv continuing to turn the screw. As 



it 



