Improvements in Acid Taps and Valves and Seats for Chemical Works.
Year: 1885

page_text: 1.11
1. ito
Improvements in Acid Taps and Valves and Seats for Chemical
Works.
.i
"
I WILLIAM ALLEN of Great Ancoats Street, Manchester in the County of
Lancaster Engineer, 'do hereby declare the nature of my invention of "IMPROVE
MENTS IN ACID TAPS AND VALVES AND SEATS FOR CHEMICAL' WORKS," to be as
follows:-
را
1
14
.
J.
The, object of this invention is the construction of a tap which shall not cut
under the action of acids and consists in constructing a cavity or cavities in the
body of the tap which may be of any suitable metal and can be filled in with
cement, plaster, or other material not affected by acid.
I thus obtain a suitable bearing for the plug with the intervening space filled in
with acid resisting material and it is found in practice that a tap so constructed
has no tendency to cut as aforesaid and can be easily opened and closed.
In this manner. I obtain the advantage of the glass and other vitreous construction
without the disadvantages attending the connecting of the same to the usual pipe
as this construction of tap is capable of being soldered by the ordinary plumber
joint. The same construction is applicable to the egg valves and ordinary plugs
and seats used in chemical manufactures....
s
☑
1:

page_text: I WILLIAM ALLEN of Great Ancoats Street, Manchester, in the County of
Lancaster, Engineer, do hereby declare the nature of my invention, to be particu-
larly described and ascertained in and by the following statement:-
The object of this invention is the construction of a tap which shall not cut,
under the action of the acids and consists in constructing a cavity or cavities in the
body of the tap which may be of any suitable metal and can be filled in with
cement, plaster or other material not affected by acid.
I thus obtain a suitable bearing for the plug with the intervening space filled in
with acid-resisting material and it is found in practice that a tap so constructed
has no tendency to cut as aforesaid and can be easily opened and closed.
On the accompanying drawing Fig. 1. represents a side exterior view, Fig. 2. a
plan, with the gland cap and plug removed and Fig. 3. an end view in section of
an improved gland cock constructed in accordance with my invention. Fig. 4. also
represents a sectional plan of the body of the same cock taken upon the line a―b.
in Fig. 1.
In all the views a. is the body of the cock formed with the usual tapered ends b.
for soldering to the pipes or other vessel to be controlled. c. c are the cavities
which form the essential feature in my invention and which communicate at the
top, as illustrated, with the interior of the gland d. These cavities being by
preference opposite each other and filled in with cement plaster or other material
not affected by acid, afford a bearing surface to the plug e. which can be tightened
at pleasure by screwing down the gland cap f. The metal I prefer to employ in
the construction of this my improved tap is a mixture of antimony and lead.
In this construction of improved acid tap I obtain the advantages of the glass
and other vitreous constructions, without the disadvantages attending the con-
necting of the same to the usual pipe, as this construction of tap is capable of
being soldered by the ordinary plumber joint. The same cavity construction is
applicable to the egg valves and ordinary plugs and seats used in chemical
manufactures.
Having thus particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed, I declare that what
I claim is
The improved construction of and application to acid taps and valves and seats
used in chemical works, of a cavity or cavities filled in with acid-resisting material,
substantially as and for the purposes hereinbefore described.
Dated thin 10th dow of Anvil 100G