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
Having thus Flatted the Face of the Punch, and brought the Letter to
some appearance of Form, He Screws the Punch in the Hand-Vice, but
not with the Shank perpendicular to the Chaps, but so as the Side
he intends to File upon may stand upwards and aslope too, and make
an Angle with the Chaps of the Hand-Vice. And holding the Hand-Vice
steddy in his left hand, he rests the Shank of the Punch pretty near
its Face upon the Tach: and then with a small _Flat-File_, called a
_Pillar-File_, in his right hand, holding the Smooth Thin Side of it
towards the Footing of the Stem, he Files that Stem pretty near its due
Fatness, and so by several reiterated proffers, lest he should File too
much of the Stem away, he brings that Stem at last to its true Fatness.
Then he measures with the Ascending _Face-Gage_, the Heighth of the
Letter: For though the _Counter-Punch_ was imagin’d (as aforesaid)
to be made to an exact Heighth for the inside of the Letter; yet with
deeper or shallower Sinking it into the _Punch_, the inside oft proves
higher or lower: Because, as aforesaid, the Superficies of the Face
of the _Counter-Punch_ is less than the true measure. But as it runs
Sholdering into the Shank of the _Counter-Punch_ the Figure or Form of
the inside becomes bigger than the inside of the Letter ought to be.
Therefore the deeper this Sholdering Shank is sunk into the Face of
the _Punch_, the higher and broader will the Form of the inside of the
Letter be, and the shallower it is Sunk in, the Shorter and Narrower by
the Rule of Contraries.
He measures, as I said, with the Assending Face-Gage, and by it finds
in what good Size the Letter is. If it be too high, as most commonly
it is, because the Footing and Top are yet left Fat, then with several
proffers he Files away the Footing and Top, bringing the Heighth nearer
and nearer still, considering in his Judgment whether it be properest
to File away on the Top or Footing, till at last he fits the Heighth of
the Letter by the Assending _Face-Gage_.
But though he have fitted the Heighth of the Letter, yet if the
_Counter-Punch_ were made a little too little, or Sunk a little too
shallow, not only the Footing will prove too Fat, but the Triangle
above the Cross-stroke of _A_ will be too small; or if too big, the
Footing and part of the Top will be Filed away, when it is brought to
a due Heighth, and then the Letter is Spoil’d, unless it be so deep
Sunk, that by working away the Face, as aforesaid, he can regain the
Footing and Top through the Slope-sholdering of the _Counter-Punch_,
and also keep the inside of the Letter deep enough.
Public-domain text, read in full here on John Shaqi.
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