JB/107/123/002

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Abrasion

Cutting by chisell, by shears, by file, by borer

Hammering

The art of giving form
by procuring a new arrangement
of the particles
of the metal by
means of an hard body
striking upon it

Goldbeater.

Drawing

1

Wire

2

Tubes

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The laws of percussion
for the shape weight &
velocity of the striking
body or hammer.

for the part upon which
the stroke is to be directed.

The effect of elastic or
non-elastic supports to the
metal during the stroke in
facilitating or impeding
the effect of the stroke
upon the metal.

Aptitude in discerning
form, & dexterity in applying
the stroke so as
to remove particles of the metal in
the most convenient manner
from the part where
they are too abundantnumerous, to
a part where they are
too few. deficient

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Forging

The art of giving
temporary malleability
to metals by a regulated
degree of heat for the purpose of working them & of giving
them form during their
most malleable state by
means of an hard body
striking upon them, partly
procuring a new arrangement
of their particles,
& in part by displacing
altogether portionsparts of the metal
or heterogeneous substances.

Attrition,
Grinding & Polishing
Information &c.

Chemsitry & natural
philosophy in so far as
necessary for the management
of the combustion
of ordinary fuel so as to
regulate the degree & quantity of
heat produced by it.

Knowledge of the relative
powers for conducting heat
of the various metals,
air in motion or at rest,
vapour of water,

Of the different degrees
of malleability of metals
at the different degrees
of heat with respect to
the necessity of accelerating
the effects of the
striking body at a certain
time.

Of the means of retarding the cooling
of the metal at
work upon.

Of continuing the degree
of heat

of the injury the metal may suffer by
neglect.

SufficientChemical knowledge
of the kinds of fuel usually
employed, to distinguish
such as are generally
known to contain matters
prejudicial to the metals.

Aptitude in judging
of the degree of contraction
likely to take place on coolingin
the various parts of
wrought metals according
to their dimensions.

Knowledge of the change
of properties in metals
at the different degrees
of heat.

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Identifier: | JB/107/123/002"JB/" can not be assigned to a declared number type with value 107.
Date_1		Marginal Summary Numbering
Box	107	Main Headings
Folio number	123	Info in main headings field
Image	002	Titles	the art of giving form to metals by casting, forging, hammering, stamping, boring, filing, chizzling, grinding, bending, soldering
Category	rudiments sheet (brouillon)	Number of Pages	2
Recto/Verso	recto	Page Numbering
Penner		Watermarks	i taylor
Marginals		Paper Producer	evan nepean
Corrections		Paper Produced in Year
Notes public		ID Number	35114
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