IMPROVEMENTS IN APPARATUS FOR FACILITATING THE REMOVAL OF YEAST FROM THE WORKING ROUNDS, SQUARES, OR OTHER FER- MENTING VESSELS USED BY BREWERS
Year: 1878

page_text: LETTERS PATENT to Samuel Griffin, of the Kingston Iron Works, Lowor
Bristol Road, Engineer, and Thomas Albert Pearce, of the Oxford Brewery,
Julian Road, Brewer, both in the City of Bath, in the County of Somerset,
for the Invention of "IMPROVEMENTS IN APPARATUS FOR FACILITATING THE
REMOVAL OF YEAST FROM THE WORKING ROUNDS, SQUARES, OR OTHER FER-
MENTING VESSELS USED BY BREWERS."
Sealed the 29th April 1879, aud dated the 5th November 1878.
PROVISIONAL SPECIFICATION left by the said Samuel Griffin and Thomas
Albert Pearce at the Office of the Commissioners of Patents on the 5th
November 1878.
SAMUEL GRIFFIN, of the Kingston Iron Works, Lower Bristol Road, Engineer,
and THOMAS ALBERT PEARCE, of the Oxford Brewery, Julian Road, Brewer, both
in the City of Bath, in the County of Somerset. "IMPROVEMENTS IN APPARATUS
FOR FACILITATING THE REMOVAL OF YEAST FROM THE WORKING ROUNDS, SQUARES,
OR OTHER FERMENTING VESSELS USED BY BREWERS."
Our Invention relates to improvements in apparatus for facilitating the removal
of yeast from the working rounds, squares, or other fermenting vessels used by
brewers without the process of hand skimming.
The apparatus consists of a frame of any suitable material, to which is attached.
a sliding plate or sluice which is raised or lowered by means of racks, or screws, or
any other suitable means. This frame is intended to be fixed to the side of the
working round or other brewing vessel at any convenient height or position. An
opening is cut through the round corresponding with the opening in the frame,.
which, opening can be partially or entirely closed or opened by raising or lowering.
the sliding plate or sluice. When closed; this apparatus forms a perfectly tight.
joint, so that the working round or other vessel to which it is attached may be.
filled with wort or beer to any convenient height.
To remove the yeast, the slide or sluice is lowered until its upper edge reaches
the level of the wort or beer, the yeast then escapes through the opening above. the
slide or sluice without any waste of wort or beer, and may be conveyed away by
pipes, or shutes, or any other convenient means.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel Griffin and Thomas Albert Pearce in the Great Seal Patent
Office on the 3rd May 1879-
SAMUEL GRIFFIN, of the Kingston Iron Works, Lower Bristol Road, Engineer,
and THOMAS ALBERT PEARCE, of the Oxford Brewery, Julian Road, Brewer, both
in the City of Bath, in the County of Somerset. "IMPROVEMENTS IN APPARATUS
FOR FACILITATING-THE-REMOVAL-OF-YEAST-FROM THE WORKING ROUNDS, SQUARES,
OR OTHER FERMENTING VESSELS USED BY BREWERS."
Our Invention relates to improvements in apparatus for facilitating the removal
of yeast from the working rounds, squares, or other fermenting vessels used by
brewers. without the process of hand skimming.
The apparatus consists of a frame of metal or other suitable material, to which is
attached a sliding plate or sluice which is raised or lowered by means of racks, or
screws, or any other suitable means. This frame is intended to be fixed to the side
of the working round or other brewing vessel át any convenient height or position.
An opening is cut through the round corresponding with the opening in the frame,,
which opening can be partially or entirely closed or opened by raising or lowering"
the sliding plate or sluice. When closed, this apparatus forms a perfectly tight
joint, so that the working round or other vessel to which it is attached may be
filled with wort or beer to any convenient height.
To remove the yeast, the slide or sluice is lowered until its upper edge reaches
the level of the wort or beer, the yeast then escapes through the opening above the
slide or sluice without any waste of wort or beer, and may be conveyed away by
pipes, or shutes, or any other convenient means.
And in order that our Invention may be clearly understood and readily carried
into practice, we will proceed to describe the Drawings hereto annexed
Figure 1 shows a front elevation; Figure 2, a side view; Figure 3, a back
elevation; Figure 4, a plan in section on the line 1, 1, of Figure 1; and Figure 5,
a plan in section on the line 2, 2, of Figure 3, of apparatus arranged in accordance
with our Invention.
Figures 6 and 7 show external views of a working round with the apparatus on
a smaller scale applied thereto.
a, a, is a metal frame formed with an opening and discharge passage or shute a¹, a',
the shute being passed from the inside through an opening cut in the working
round b or other fermenting vessel and fitted tightly therein. c is a sliding plate
or sluice which slides up and down in guides formed in the sides of the frame a,
and when at its highest position covers and thus closes the discharge passage or
shute a. The plate or sluice c is formed with toothed racks c¹, c¹, into which
toothed pinions a², a², (mounted in the frame a) take, being actuated by hand
wheels a³, as, to raise or lower the plate or sluice c so as to place its upper edge on
a level with the surface of the wort or liquor in the round or vessel b, in order that
the yeast as it rises may flow over the sluice c and down the shute a¹ into a suitable
receiver. a is a hinged flap or cover to the passage or shute a¹.
A scoop or trough may be attached to the plate c, extending any convenient
distance into the vessel, for the purpose of removing the yeast rapidly if required.
Having thus described the nature of our Invention, and the manner of performing
or carrying the same into practice, we would remark that we do not limit ourselves
to the exact details hereinbefore described, as the same may be varied without
departing from the true character of our Invention, at the same time we do not

page_text: claim any of the parts separately, which are well known and in common use,
what we claim is,-
but
The improved method and apparatus for removing yeast from the working
rounds, squares, or other fermenting vessels used by brewers by means of an
adjustable sluice c or other equivalent means, substantially as herein before described
and represented in the Drawings hereto annexed.
In witness whereof, we, the said Samuel Griffin and Thomas Albert Pearce,
have hereunto set our hands and seals, this Twenty-ninth day of April, in
the year of our Lord One thousand eight hundred and seventy nine.
SAMUEL GRIFFIN.
(L.S.)
THOMAS ALBERT PEARCE. (L.S.)