~ 
FOUNDERY. 
wards fo fay, till: the ian on gla carriage touch each 
arts .of the mould 
$ 
becaufe the bedies on each part. of. ae mould ‘tend clofer 
together, 
The parts of the mould are as follow ; viz 
a The carr fage. 
The os 
bT 
aaaa The bottom plate 
£46 The oot on ie the bottom plate lies. 
¢¢¢ The mouth. 
edd The pallet. 
J The nic 
gg The tt 
i 
bb a {pring or bow 
e mould muft be “juftified : and firft ee ea 
ped 
aie flick, 
with all their nicks towards the right an. 3 and then by 
comparing thefe with the pattern ena fet up in the 
fame manner, he finds the exa&t meafure of the body to 
be caft. He alfo tries if id two Adee of the body are 
parallel, or that the bo no bigger at the head than 
at the foot ; by taking: half the number of his proofs, and 
turning ‘them wit to the feet e other 
half ;. 
even ae each ether, and neither t 
in, the two fides may be pronounced parallel. He farther 
tries whether the two fides of the — of han letter 
be eer by firft fetting his proofs in the compofing 
flick their nicks upwar is 3 and an ae one-half 
with theit heads to: the feet of the other half: a if 
the heads and feet lie oes upon each other, and neither 
drive out nor get in, the two fides of the. eee are 
mould Aa juflified the next bufinefs is to pre- 
pare dea matrices, _ A matrice isa piece of brafs or copper 
of about an inch a a, half ins, and of a thicknefs in pro- 
portion to the fize of the letter it is to contain. In this 
metal is funk the face of the cae cagine to be iy 
by ftriking the letter — about the depth of an 
After this the fides and face of the one mutt be juitified 
ane a d, with files, of ‘all bunchings made . by finking 
e 
Eve ks ng thus prepared, it is br ought to the furnace, 
which is built of brick upright, w bite four fquare fides, and 
a ftone on the en in which {tone is a wide round hole for 
e pan to ftand its A foun ner ie: any confequence has 
fever of thefe furnaces in it. 
As to the metal ‘of which the types are to be caft, this, 
in -extenfive founderies,. is always prepared in large quan- 
bars of about twenty pounds 
large furnace is built. under a fhade, furr. nifhed with 4 
wheel vent, in order the more equally to heat the fides 
of a ftrong pot of caft iron, which holds, ee laa » fifteen 
hundred weight of | the metal, T ki 
= 
—s 
% 
Os 
me to convey away 
the rorkmen, to whom this 
f the bufinefs is committed. When the 
lead is ereene melted, a due pape of the regulus 
of antimony and. other ingredients are put in, and fome 
e pot pia thoroughly iy ‘ining ince 
ae e ivon ladle, next proceed to draw the el e 
into the {mall troughs of caft iron which a 
the number of of adtaets €, upon a level afore faced 
with ftone, built towards the right hand. In the courfe 
of a day fifteen ded weight of metal can be cir 
prepared in this manner; and the operation is continued 
a 
or as many days as are neceflar repare a ftock 
of metal, of all the various degrees of hardnefs. After - 
this the whole is difpo to preffes, accord to 
t 
its aealey, to be delivered out occafionally to the work- 
men. 
The founder muft be now provided with a ladle, which’ 
aad nothing from other iron ladles, but in its fize. And. 
he is provided eee with ladles of feveral fizes, which he - 
ufes ceemaine to the fize of the oe he is to ‘caft. 
Before the caiter begins to caft, he kindle his fire. 
in ey heat to melt the metal in eg pan. The efore he 
e pan out of the hole in the oe and there ia 
in a and kindles ‘them ; and, hoa they are well kindled, 
he {ets the pan in again an metal into. it to. 
puts in. 
melt 3 if it | be a {mall bodied * ee he pas or a is 7 
letter sh great sane his metal muft be very hot; nay ~ 
fometimes red-hot, to make the none come. ‘Then ha ee 
aia a Tadle that will hold abeut fo much as the letter and: 
break is, he lays it at the ftoking hole, where pa Jame ° 
burits out, to heat. hen he ties a thin leather, cyt with 
its narrow end againft the face to. the le a eid eee of 
the matrice, by whi ing a brown thread twice about the 
leather-groove, and fattening the thread vie aknot. Then 
it not tight up, left it might hinder the foot ate matrice 
from finking clofe idele aa Lin a trai work, 
ay laying a little on the wpper-wood of the 
‘and having his ee ladle . hot, he with the 
Galle fide'of it melts the rofin : and, when it is a pag 
s the broad end of the iene hard dow the - 
wood, and fo faftens it to the wood:: all this is. the ‘pre- 
gr 
the under half, fo that the male gauges may fall: into on 
female’. gauges, and at the fame time the foot: of the ma’ 
. tice -places- ite Sa the fool} and, clafping Ae 
