Vat

Definition and stakes

Franklin Beech,  The Dyeing of Woollen Fabrics

“ A successful vat maker is one who closely observes his vats, and the way in which they are working, and who, as the (p. 140) result of such observations, is able to tell in what way his vats are deficient, so that he may know how to supply that deficiency.
The following method of setting a woad vat may be adopted. It is calculated for 100 gallons of liquor. The vat is filled with hot water, and 80 lb. of woad are allowed to steep overnight in it, having first been well stirred into the water, so as to ensure that every part is wetted out. The next morning there is added 8 lb. madder, 12 lb.
”
Source: Gutenberg

Various,  Godey's Lady's Book, Philadelphia…

“ At one part of the vat is a breasting B', made of boards and covered with sheet lead, curved to the form of the cylinder and nearly in contact with its teeth. An inclined plane I, passes from the bottom of the vat to the top of the breasting which terminates in the block B. The vat is supplied with water from the mill-dam by means of pumps worked by the water-wheel. The water is first discharged by the pipe P, Fig. 4, into the cistern c, the supply being regulated as occasion may require. ”
Source: Gutenberg

Thomas Packer,  The Dyer's Guide

“ We consider, however, that when the vat can be worked daily, and replenished as it is worked down, as is the case in London, with care and attention, there is no danger of the loss of a woad vat: in London, such an accident now seldom happens. The author is, notwithstanding, persuaded that all the art of man cannot always keep a vat from the state of having either too much or too little lime, when heated but seldom, under a short course of work: for when a vat is in order, it is like a ripe vegetable ”
Source: Gutenberg

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