the oxygenated muriatic Acid. 299 
frame in a horizontal pofition, and one of the pieces, N, 
being faftened to the canvas, M, by means of wooden fkew-. 
ers, in the manner reprefented in fig. 1, it is rolled upon the 
axis by turning it with the handle, P. This operation muft 
be performed by two perfons; the one turning the axis and 
the other direCting the piece, which muft be: rolled on very 
tight and yery even. _ When the firft piece is on the axis, 
the next piece is faftened to the end of it by fkewers, and 
wound on in the fame manneras the firft.. The fame me- 
thod is purfued till all the. pieces are wound upon the axis. 
The end.of the’ laft piece is then faftened to the canvas of the 
axis K. Both axes are afterwards placed into the ciftern, 
with their ends in the fockets F F, and the lid is put on the 
eiftern by pafling the axes through the tubes HH. The 
handle P is put upon the empty axis, and the pulley Q upon 
the axis on which the cloth is rolled, and the cord R, with 
the weighs T, is put round it andvover the pulley S. The 
ule of the fri€tion, produced by this weight, is to make the 
cloth wind tight upon the other axis. But as the effect of 
the weight will increafe as one cylinder increafes and the 
other leffens, I) récommend that three or four weights be 
fufpended on the.cord, which may be taken off gradually, as 
the perfon.who works the machine may find it convenient. 
As the weights hang in open hooks, which are faftened to 
the cord, it will be little or no trouble to put them on and 
to remove them. 
»Things being thus difpofed,' the bleaching liquor is to: be 
transferred from the veffels in which it has been prepared 
into: the apparatus, by 2 moveable tube paffing through the 
tube I, and defcending to the bottom of the ciftern. This 
tube being connected with the veflels, by means of Jeaden 
er wooden pipes provided with cocks, hardly any vapours: 
will efeape in:the transfer. When the apparatus is filled up 
to the'line a,.the moveable tube is to be withdrawn, andthe 
jube Ii clofed... As the liquor rifes above the edge of the,rim 
G, and. above the tubes. H H, it is.cvident that no,cyaporas 
tion 
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