Improvements relating to the Manufacture of Sulphate of Ammonia.
Year: 1892

page_text: Date of Application, 19th July, 1892-Accepted, 27th Aug., 1892
COMPLETE SPECIFICATION.
Improvements relating to the Manufacture of Sulphate of Ammonia.
I, WILLIAM MALTSTER of Helvetia Street, Perry Hill, Catford, in the
County of Kent, Manufacturing Chemist, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This invention relates to means for raising the sulphate of ammonia from the
bottom of the saturator, or pan, and placing it on a suitable drainer, so as to allow
the fluid portion to fall back into the saturator.
In the accompanying drawing,
Fig. 1 is a section through the apparatus ;-
Fig. 2 is an enlarged section of that portion of the apparatus which places the
sulphate on the drainer.
a is a bent pipe, somewhat of the form of a syphon, made of lead, and with the
b is a
one end dipping into the precipitated salts at the bottom of the saturator.
valve on the other end of the pipe, which consists of a metal plate hinged at the
top, and set at an angle with the mouth of the pipe, and provided with an india
rubber face, which rests against the bevilled end of the pipe. c is a pipe which
connects the discharging arm of the pipe a, just beyond the bend, with the air
pump d.
The pump d has a solid plunger, to which a reciprocating motion is given in any
convenient manner, such as a shaft and crank e, and connecting rod, as shewn at
Fig. 1.
is the sloping draining table on which the salt is deposited, and g is the
saturator.
The mode of operation is as follows:-At each upstroke of the air pump d, a
partial vacuum is created in the pipe a, and the pressure of the air causes the
precipitated salts from the bottom of the saturator, to ascend the pipe, and pass
over the bend, into the other arm. At each down-stroke of the piston, the salts
are forced out of this arm (the valve being free to open under the influence of the
pressure), and fall on to the drainer, where the moisture drains off, and the salts
are then ready to be placed in the sulphate store.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The apparatus substantially as herein shown and described for raising sulphate
of ammonia salts from the saturator, and depositing the same on the drainer, as and
for the purposes set forth.
2. In sulphate of ammonia plant, the combination with a bent pipe, one end of
which extends to the bottom of the saturator, and the other end projects over the
drainer, and is provided with a valve, of means for alternately producing a partial
vacuum and pressure in the said pipe, as and for the purposes set forth.
3. In the manufacture of sulphate of ammonia, creating intermittently a partial
vacuum in a discharge pipe connected with the saturator, and provided at its free
end with a valve, whereby the salts are raised from the saturator and discharged
onto a drainer, as and for the purposes set forth.
Dated this 19th day of July 1892.
NEWTON & SON,
Agents for the Applicant.