An Improved Method of and Apparatus for Straining Brewers' Wort.
Year: 1891

page_text: Date of Application, 12th Sept., 1891
Complete Specification Left, 7th June, 1892-Accepted, 9th July, 1892
PROVISIONAL SPECIFICATION.
An Improved Method of and Apparatus for Straining Brewers'
Wort.
I, SAMUEL ALFRED CROXFORD, of Ashton Gate Brewery, Bedminster, in the
City and County of Bristol, Brewer, do hereby declare the nature of this invention
to be as follows:-
This invention consists in an improved method of and apparatus for straining
brewers' wort and thereby removing from the wort albuminous and other solids
contained therein.
According to this invention the wort is strained while in the boiling copper or in
the "under-back." Straining is effected by means of a sieve of woven wire or like
material upon which is superposed a layer or layers of woven horse-hair or of other
suitable material having a sufficiently open texture. The straining appliance, which
loosely fits the copper or under-back, and is furnished with a raised rim, is lowered
by ropes or chains into the vessel and rests on the bottom thereof. When the
wort has been raised to a temperature high enough to solidify to a sufficient degree
albuminous matter contained in the wort, such matter, with other solids, is removed
from the wort by drawing up the strainer and taking it out of the vessel.
washing, the strainer is ready for re-use.
After
Under a modification the strainer consists of a metallic ring to which is attached
a layer or pouch of horse-hair or other filtering medium.
The ring may be made collapsable to accommodate a tapering vessel.
Dated this 11th day of Santembor 1891
NICHOLAS WATTS,
Bristol Bank Buildings, Bristol, Agent.
COMPLETE SPECIFICATION.
An Improved Method of and Apparatus for Straining Brewers'
Wort.
I, SAMUEL ALFRED CROXFORD, of Ashton Gate Brewery, Bedminster, in the
City and County of Bristol, Brewer, do hereby declare the nature of this inven
tion and in what manner the same is to be performed, to be particularly described
aud ascertained in and by the following statement :—
This invention consists in an improved method of and apparatus for straining
brewers' wort and thereby removing from the wort albuminous and other solids
contained therein.
According to this invention the wort is strained while in the boiling copper or in
the under-back." Straining is effected by means of a sieve of woven wire or like
material upon which is superposed a layer or layers of woven horse-hair or of other
suitable material having a sufficiently open texture. The straining appliance, which
loosely fits the copper or under-back, and is furnished with a raised rim, is lowered
by rods, ropes or chains into the vessel and rests on the bottom thereof. When the
wort has been raised to a temperature high enough to solidify to a sufficient degree
albuminous matter contained in the wort, such matter, with other solids, is removed
from the wort by drawing up the strainer and taking it out of the vessel. After
washing, the strainer is ready for re-use.
Referring to the accompanying sheets of drawings,
Fig. 1 represents a part side elevation and part sectional view of a wort strainer
constructed in accordance with one arrangement comprised in this invention.

page_text: Fig. 2 is a part plan with the straining web removed. The bottom of the frame
of the appliance is composed of concentric rings of wire a stiffened and stayed by
radial stays and of which extend from a central disc c to the angle iron
which constitutes the bottom rim. The stays extend from the said outer rim a
to the intermediate angle-iron ringe. The wires a are bound to the stays and b
by short pieces of wire or otherwise. From the rim vertical wires are carried
up to the upper rim . The appliance is further stiffened by vertical plates A
situated at suitable distances apart and secured to the upper and lower rims.
Inside the cage thus constructed and arranged is a web, Fig. 1, of horse-
hair or other suitable material having a sufficiently open texture. When this
straining web has been laid in the cage the arms k radiating from a common centre
are superposed on the web and pressed down upon it by means of the nut working
on the screw holt m.
Around the upper edge the web is attached to the upper rim g. nare rods for
suspending the whole appliance to a crane, hoist or the like. Instead of rods,
chains or ropes may be used. The appliance is lowered into the copper or under-
back containing the wort and rests on the bottom thereof. When the wort has
been raised to a temperature high enough to solidify to a sufficient degree albuminous
matter contained in the wort, such matter, with other solids, is removed from the
wort by drawing up the strainer and taking it out of the vessel. After washing, the
strainer is ready for re-use.
Under a modification the strainer consists of a metallic ring to which is attached
a layer or pouch of horse-hair or other filtering medium. The ring may be made
collapsible to accommodate a tapering wort-vessel.
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 improved method of straining brewers' wort while in the copper or under-
back hereinbefore set forth, that is to say, by a straining appliance deposited in the
vessel containing the wort, which straining appliance is withdrawn after the wort
has been raised to a temperature high enough to solidify to a sufficient degree
albuminous matter contained in the wort.
2. An appliance for straining brewers' wort while in the copper or in the under-
back, the said appliance consisting of a skeleton frame of wire stiffened by stays
and angle-irons and containing a straining web of horse-hair or other suitable
material, the appliance being adapted to be lowered into the vessel containing the
wort and to be withdrawn therefrom, at will, substantially as hereinbefore described
with reference to the accompanying drawings.
3. The modified wort-straining appliance hereinbefore described consisting of a
metallic ring (either collapsable or not) having attached thereto a ponch of horse-
hair or other suitable filtering medium.
Dated this 1st day of June 1805
NICHOLAS WATTS,
Bristol Bank Buildings, Bristol, Chartered Patent Agent..