Moxon's mechanick exercises, volume 1 (of 2) : $b The doctrine of handy-works applied to the art of printingMoxon, Joseph
History
Moxon's mechanick exercises, volume 1 (of 2) : $b The doctrine of handy-works applied to the art of printing
Moxon, Joseph
Printing -- Early works to 1800
Yet Swash-Letters, especially _Q_, whose Swashes come below the
Foot-Line, and whose Length reaches under the Foot-Line of the next
Letter, or Letters in Composing, ought to have the Upper Sholder of
that Swash Sculped down straight, _viz._ to a Right Angle, or Square
with the Face; at least, so much of it as is to be Sunk into Copper:
Because the Upper Sholder of the Swash would else be so broad,
that it would ride upon the Face of the next Letter. Therefore the
Swash-Letters being all Long-Letters, the lower end of the Swashes
reach as low as the Bottom-Line; which cannot be Filed Square enough
down from the Head-Line, unless the Steel the Swash stands on, should
be Filed from end to end, the length of the whole Shank of the _Punch_,
which would be very tedious; and besides, would make that part of
the Shank the Swash stands on so weak, that it would scarce endure
Striking into the Copper. Therefore, as I said before, the Upper
Sholder of the Swash ought to be Sculped down: Yet I never heard of any
_Letter-Cutters_ that had the knack of doing it; but that they only
Filed it as straight down as they could, and left the _Letter-Kerner_,
after the Letter was Cast, to Kern away the Sholdering. Yet I use a
very quick way of doing it; which is only by Resting the Back of a
Graver at first, to make way; and afterwards a Sculptor, upon the Shank
of the _Punch_, at the end of the Swash, one while; and another while
on the Shank, at the Head, that the Swash may be Sculped down from end
to end: and Sculping so, Sculp away great Flakes of the Steel at once,
till I have Cut it down deep enough, and to a Right Angle.
Then he Hardens and Tempers the Punch; as was shewed, _Numb._ 3. _Vol._
I. _Fol._ 57, 58.
But though the _Punch_ be Hardned and Temper’d, yet it is not quite
finished: for, in the Hardning, the _Punch_ has contracted a Scurf upon
it; which Scurf must be taken off the Face, and so much of the sides of
the Shank as is to be Sunk into Copper. Some _Letter-Cutters_ take this
Scurf off with small smooth Files, and afterwards with fine Powder of
_Emerick_. The _Emerick_ they use thus. They provide a Stick of Wood
about two Handful long, and about a _Great-Primer_, or _Double-Pica_
thick: Then in an Oyster-shell, or any sleight Concave thing, they powr
a little Sallad-Oyl, and put Powder of _Emerick_ to it, till it become
of the Consistence of Batter made for Pan-cakes. And stirring this Oyl
and _Emerick_ together, spread or smear the aforesaid Stick with the
Oyl and _Emerick_, and so rub hard upon the Face of the _Punch_, and
also upon part of the Shank, till they have taken the Scurf clean off.
Public-domain text, read in full here on John Shaqi.
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