Improvements in and connected with High-pressure Spargers for Upright Shafting for Use in Mash Tuns.
Year: 1889

page_text: Date of Application, 27th Dec., 1889
Complete Specification Left, 31st July, 1890-Accepted, 13th Sept., 1890
PROVISIONAL SPECIFICATION.
Improvements in and connected with High-pressure Spargers for
Upright Shafting for Use in Mash Tuns.
1 JAMES STRONG, of Aldershot Brewery, Aldershot in the County of Hants Brewer,
do hereby declare the nature of my said invention to be as follows:-
The object of my invention is to construct spargers for use in mash tuns containing
internal machinery and fixed upright shafting, which arrangement precludes the use
of ball socketed or spindle spargers.
My spargers are so constructed that the whole pressure of the falling liquor is
utilized in imparting rotary motion to the arms and reducing friction. This dis-
tinguishing feature of the invention renders it a "high pressure" sparger. It is
equally as efficient for worts as for liquor.
In carrying out my invention fit a stationary annular block to the upright shaft,
secured thereto by set screws adjustable to any convenient height. The side or the
underside of this block is fitted with a pipe or pipes, leading to passages or an
annular chamber, formed therein, whereby the liquor is caused to flow in an upward
direction.
The annular socket of the fixed block is preferably made in the form of a frustrum
of a cone, and the boss of the arms is made to correspond therewith, but I do not
confine myself to any particular angle of contact, as this may be varied to suit the
pressure of the fluid and the weight of the arms and boss; as it will be obvious that
with an increase of pressure the angle may approach nearer to a horizontal line, and
in some cases a flat annular disc may be used."
The arms consist of tubes, closed at their outer ends; these tubes are perforated
with numerous holes on one side in order that the fluid passing through the boss to
and through the arms may cause their rotation by reaction."
The effect of the foregoing arrangement is such that the liquor exerts a lifting
pressure to the arms and boss, as they rotate, and causes them to be sustained by a
thin film of liquor, which reduces friction to a minimum and greatly facilitates the
action of the apparatus.
D
C
1000
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with High-pressure Spargers for
Upright Shafting for Use in Mash Tuns.
1, JAMES STRONG of Aldershot Brewery, Aldershot, in the County of Hants, Brewer,
do hereby declare the nature of my said invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
The object of my invention is to construct spargers, for use in mash tuns containing
internal machinery and fixed upright shafting; which arrangement precludes the use
of ball socketed or spindle spargers.
My spargers are so constructed that the whole pressure of the falling fluid is
utilised in imparting rotary motion to the arms and reducing friction. This dis-
tinguishing feature of the invention renders it a "high pressure
equally as efficient for worts as for liquor.
"
sparger. It is
And in order that my said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.

page_text: Fig. 1 is a plan of the sparger.
Fig. 2 is an enlarged view of the central portion of the sparger.
Fig. 3 is a horizontal view (partly in section) on the line 1-2 of Fig. 2.
Fig. 4 is a vertical section, on the line 3-4:
Fig. 5 is a horizontal section, on the line 5-6.
Fig. 6 is a horizontal section of the lower part of the casting on the line 7-8:
Fig. 7 is a vertical section on the line 9-10.
a is the upright shaft. 6 is a stationary annular block, secured to the upright
shaft a by set screws, keys, or any other convenient means, and at any suitable
height. is an annular vertical passage leading downwards to the annular chamber ².
c is another stationary block, screwed to the block b, the joint being made fluid tight
by a rubber washer d, as shown in Figs. 4 & 7. The block c is cast with an inlet
pipe c, having a passage leading to the passage in the block b. A pipe c
(Fig. 1.) is coupled on to the pipe c', whereby the liquor is brought to the apparatus
from any convenient source at the necessary pressure.
e is the annular boss of the arms e eff. The construction of this casting is
clearly shown in the drawings. Two annular V grooves e2 e² are formed as shown,
which fit corresponding projecting edges formed above the annular chamber 62,
forming fluid tight-joints between the chamber and the casting e. The casting e is
formed with two branch pipes el el, the passages to these pipes being shown in Fig. 4.
Three, four, or any other number of branches e¹ may be used, with a corresponding
number of pipes attached thereto, as preferred. Also the joints e² ² may be flat,
semicircular, or otherwise.
The tubular arms are closed at their outer ends. One side of each arm is
pierced with a number of small holes, the holes of one arm being placed in an opposite
direction to those of the other, as indicated in Fig. 1. .
In using the apparatus, liquor under pressure is forced through the pipe c³ to the
branch pipe el, from whence it passes down the annular passage to the annular
chamber. Here the pressure of the liquor is exerted in a vertical direction on the
underside of the casting e, whereby the weight of the casting e and arms el and f
may be balanced, and the friction at e² reduced to a minimum. The liquid passes
upwards and outwards, from the chamber 6 through the arms el and f to the mash
tun; the reacting force of the issuing fluid causing the rotation of the arms fe¹ and·
casting e.
The perfect balance of the apparatus may be effected by adjusting the area of the
annular opening of the chamber 62, to the weight of the arms and casting and the
pressure of the incoming liquor; an additional means of adjustment being afforded by
directing the perforations in the pipes in a downward, horizontal, or upward
direction.
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 manufacture and use of rotating spargers for upright shafting, so constructed
that the pressure of liquor is caused to sustain, or assist in sustaining, the weight of
the arms and their connections, thereby reducing friction and imparting rotary
motion to the armis, substantially as herein before described and illustrated by the
drawings.
2. The general construction, combination, and arrangement of the several and
respective parts, together forming my invention of improvements in and connected
with high pressure spargers for upright shafting, substantially as herein before
described and illustrated by the drawings.
Dated 20th T.L. 100n
GEO. DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.