Improvements in Boiling Wort and Extracting the Valuable Properties of the Hops, and Apparatus connected therewith.
Year: 1895

page_text: Date of Application, 26th Oct., 1895
Complete Specification Left, 27th July, 1896-Accepted, 17th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in Boiling Wort and Extracting the Valuable
Properties of the Hops, and Apparatus connected therewith.
I WALTER THOMAS RAMSDEN of 177 Kingsland Road in the County of
Middlesex, Brewer's Engineer do hereby declare the nature of this invention
to be as follows:-
It is well known how large an amount of the volatile matter of the hops is driven
off & wasted in the ordinary way of boiling & how large an amount of fuel is
consumed in the boiling. My improvements relate to the saving of the volatile
matter of the hops & in economising the fuel required.
I heat the wort with the hops in a closed vessel capable of sustaining some
amount of pressure & when the heat & pressure has been raised to the desired
point I only supply heat enough to keep up the heat & pressure & I keep the wort
in circulation & the hops suspended in the wort by any well known apparatus.
I may use for the purpose a screw vane in a pipe fixed centrally in the vessel
leaving a clear space between the bottom of the pipe & the bottom of the vessel or
I may use a rouser provided with screw blades or a pump or fan either vertical or
horizontal having partitions or divisions perforated or otherwise fixed in the
vessel.
Dated this 25th day of October 1895.
WALTER RAMSDEN.
Improvements in Boiling Wort and Extracting the Valuable
Properties of the Hops, and Apparatus connected therewith.
WALTER THOMAS RAMSDEN of 177 Kingsland Road in the County of
Middlesex Brewer's Engineer, 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 :-
It is well known how large an amount of the valuable matter of the hops is
driven off and wasted in the ordinary way of boiling and how large an amount of
fuil is consumed in the boiling.
My improvements relate to the saving of the valuable matter of the hops and in
economising the fuel required.
I heat the worts in a closed vessel capable of sustaining some amount of pressure
and when the heat and pressure have been raised to the desired point I only supply
heat enough to keep up the heat and pressure and 1 keep the wort in constant
circulation and the hops suspended in the worts by any well known apparatus
adapted for the purpose thus keeping the worts from colouring and bringing the
hops into intimate contact with the matter of the worts as is usually done by the
fast circulation of the wort.
I may use for the purpose a screw vane on a vertical driving shaft revolving
near the bottom of the vessel containing the wort to be boiled the screw being of

page_text: a very low pitch and I may enclose the vane in a pipe open at both ends and leaving
a clear space between the bottom of the pipe and the bottom of the vessel and the
pipe may be an annular steam heater.
Or I may with an outside heated copper use a vane on a horizontal shaft not
enclosed in a pipe and revolved near the bottom of the copper.
Or I may use a centrifugal wheel below a conducting pipe and close to the bottom
of the vessel.
Or I may use a conical mixer revolved near the bottom of the vessel.
The accompanying drawings show several forms of my apparatus for carrying
out my invention but I do not confine myself to these forms.
Fig. 1. is a sectional elevation a, being a domed copper heated by the annular
steam beater b, acting as a pipe and in which the screw vane c, of very low pitch
of screw on the vertical shaft d, passing through the stuffing box e, is driven by
gearing outside the vessel but the copper may be heated by other means and a
simple pipe may be used instead of the annular steam heater or the pipe may be
dispensed with but the circulation will not be so perfect.
Fig. 2. shows a similar domed copper a, but heated by a steam jacket f, in this
a screw vane c, is shown on a horizontal shaft d, passing through the stuffing box e,
and driven by the pulley g.
Fig. 3. shows a portion of a similar copper to Fig. 2. but with a centrifugal
wheel, on the shaft d, drawn by the gearing m, on the shaft d', carried by the
bracket
the shaft d', passing through the stuffing box e, instead of a screw vane.
j, is a pipe for conducting the wort to the central portion of the wheel which is
shown in plan Fig. 4. the wort passing downwards to the wheel.
n,
Fig. 5. shows a conical mixer l, which acts both as a centrifugal wheel and a
conducting pipe this is shown fixed in a fire heated copper but will answer equally
well in other forms of copper.
The coppers as before stated are all closed vessels and the shafts pass through
stuffing boxes.
The coppers are all furnished with man holes and safety valves and in the
drawings the covers of the man holes are made to act as the safety valves being
weighted to the pressure required to produce the necessary heat.
The other fittings are those usual with domed coppers.
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
1st. For the purpose herein contained heating the wort with the hops in a
closed vessel to the desired degree of heat and keeping them in continuous
circulation by any well known apparatus adapted for the purpose while maintaining
the heat in the vessel without allowing much if any steam to escape.
2nd. The different forms of apparatus substantially as herein described and
illustrated in Figs. 1 2 3 & 5 of the drawings and the variations herein described.
Dated this 25th day of July 1896.
W. T. RAMSDEN.