298 On the Procefs of Bleaching with 
DESCRIPTION OF TRE APPARATUS. 
‘Fig. 1, (Plate VIE.) is a feétion of the apparatus. Tt con- 
fits of an oblong deal ciftern ABCD, made water-tight, 
Atib, EE, of ath or beech wood, is firmly fixed to the mid- 
dle of the bottom CD, being mortifed into the ends of the 
ciftern. This rib is provided with holes, at FF, in which 
two perpendicular axes are to turn. The lid, AB, has a 
rim, GG, which finks and fits into the ciftern. Two tubes, 
HHT, are fixed into the lid, their centres being perpendicu- 
larly over the centres of the fockets, FF, when the lid is 
upon the ciftern.  At'I, is a tube by which the liquor is in- 
troduced into the apparatus, - As it is necefflary that the 
fpace within the rim, GG, be air-tight, its joints to the lid, 
and the joints of the tubes, muft be very clofe; and, if ne- 
éeffary, fecured with pitch. Two perpendicular axes, K L, 
made of ath or beech wood, pafs through the tubes, H H, 
and reft im the fockets, FF. A piece of firong canvas, M, 
is fewed very tight round the axis K, one end of it pro- 
jetting from the axis. The other axis is provided with a 
Gmilar piece of canvas.. N, are pieces of cloth rolled upon 
the’axis L. Two plain pulleys, OO, are fixed to the axes, 
im order to prevent) the cloth from flipping down. The 
fhafts are turned by'a moveable handle, P. Q, a moveable 
pulley, round which: paffes the cord, R, This card, which 
is faflened on the oppofite fide of the lid (fee fig. 2), and 
paffes over the fmall pulley S, produces friction by means 
of the weight T. By the fpigot and fauffet V, the pile is 
1 off, wlio exhautted. 
“Fig. 3. A plan of the apparatus, with the lid taken off, 
FIHE MANNER OF USING THE APPARATUS,, 
The dimenfions of this apparatus are calculated for the 
purpote of bleaching twelve or fifteen pieces of *'calicoes, or 
inv other finfs of equal Breadth end’ fubftance. When’ the 
goods are ready for bleaching, the ‘axis, L, 1s placedon-a 
frame 
