238

MODERN PAPER-MAKING

the cross direction, the devices will have to be spaced out further across the
roll than they are to be in the finished sheet. These variations must therefore
be allowed for when ordering a roll for any particular size of paper. The
variations remain fairly constant for each machine, but depend, of course, upon

WG.S4/4

WGS&W

WGS&.W WGS&W

WG&&W WGS&W

[Green, Son and IVaite
FIG. 98.—SHOWING HOW THE WATER-MARK FALLS INT A LAKGE POST Svo

WGREEMSON&WAITE

WGREEHSOH&WArTE

WGREEKSON&WAITE

RG, 99.—POSITION OF WATH-MABK IN BROAD QUARTO SHEET
tie Mraws' from the coudb roll and presses, the heat of the first set of drying
cyfawkrs, and also on the nature of the stuff.
A nfl for water-marking a sheet of Large Post, made i6| inches aaoss the
i^ will have to be about 20f or 2O| inches in ciromiference and the