1cavity it poſſeſſes, it will not let in the
Air, and yet may be put in or taken out
at pleaſure, for uſes to be hereafter men
tioned. In order to ſome of which, it is
perforated with a little hole, (8) traverſing
the whole thickneſs of it at the lower
end; through which, and a little braſs
Ring (L) faſtned to one ſide, (no matter
which) of the bottom of the ſtopple
(FG) a ſtring (8, 9, 10) might paſs, to
be imploy'd to move ſome things in the
capacity of the empty'd Veſſel; without
any where unſtopping it.
Air, and yet may be put in or taken out
at pleaſure, for uſes to be hereafter men
tioned. In order to ſome of which, it is
perforated with a little hole, (8) traverſing
the whole thickneſs of it at the lower
end; through which, and a little braſs
Ring (L) faſtned to one ſide, (no matter
which) of the bottom of the ſtopple
(FG) a ſtring (8, 9, 10) might paſs, to
be imploy'd to move ſome things in the
capacity of the empty'd Veſſel; without
any where unſtopping it.
The laſt thing belonging to our Recei
ver, is the ſtop-cock deſigned in the firſt
Figure by (N.) for the better faſtening
of which to the neck, and exacter excluſi
on of the Air, there was ſoder'd on to
the ſhank of the Cock (X) a Plate of
Tin, (MTUW) long enough to cover
the neck of the Receiver. But becauſe
the cementing of this was a matter of
ſome difficulty, it will not be amiſs to
mention here the manner of it, which
was, That the cavity of the tin Plate was
fill'd with a melted Cement, made of
Pitch, Roſin, and Wood-aſhes, well in
corporated; and to hinder this liquid
Mixture from getting into the Orifice (Z)
ver, is the ſtop-cock deſigned in the firſt
Figure by (N.) for the better faſtening
of which to the neck, and exacter excluſi
on of the Air, there was ſoder'd on to
the ſhank of the Cock (X) a Plate of
Tin, (MTUW) long enough to cover
the neck of the Receiver. But becauſe
the cementing of this was a matter of
ſome difficulty, it will not be amiſs to
mention here the manner of it, which
was, That the cavity of the tin Plate was
fill'd with a melted Cement, made of
Pitch, Roſin, and Wood-aſhes, well in
corporated; and to hinder this liquid
Mixture from getting into the Orifice (Z)
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