Improvements in Mechanism for Removing Grains from Brewery Mash Tuns, and for Mixing the Goods.
Year: 1894

page_text: Date of Application, 26th Nov., 1894
Complete Specification Left, 26th Sept., 1895-Accepted, 23rd Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Mechanism for Removing Grains from Brewery
Mash Tuns, and for Mixing the Goods.
I, HENRY HERBERT HAWKINS, of 23 Conyngham Road, Rusholme,
Manchester, in the County of Lancaster, Brewer, do hereby declare the nature of
this invention to be as follows:-
:―
This invention relates to a means for emptying brewery mash tuns and for
mixing the goods. The object of this invention is to employ mechanical means
for removing the grains from brewery mash tuns in lieu of manual labour.
In this invention I place a vertical shaft in the centre of a brewery mash tun,
said shaft being either fitted into a footstep therein, or passed through a stuffing
box in the bottom of the mash tun: I place a sliding collar on the aforesaid shaft
within the mash tun, said collar being formed with wings or projections to which I
attach suitably shaped blades or scoops: motion is communicated to the vertical
shaft as may be most convenient, by means either of bevel gearing or a worm and
worm wheel, which may be fitted to either end of said vertical shaft according to
the position of the existing shafting from which power may be obtained: By the
revolution of the aforesaid vertical shaft the blades connected therewith will
scrape the grains towards the centre so as to be discharged through the aperture
in the bottom of the mash tun: The aforesaid blades or scoops may be caused to
lower automatically as required by the gradual removal of the grains, by means
either of balance weights or a screw or other equivalent.
When the herein before described mechanism is required to be employed for
mixing the goods as well as removing the grains, vertical forks are affixed to the
blades, and reversible motion applied by which quick speed is obtained for mixing
the goods and slow speed for removing the grains.
Dated this 23rd day of November 1894.
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.
Improvements in Mechanism for Removing Grains from Brewery
Mash Tuns, and for Mixing the Goods.
I, HENRY HERBERT HAWKINS, of 23 Conyngham Road, Rusholme,
Manchester, in the County of Lancaster, Brewer, 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 mechanism that may be employed as a means for
removing grains, malt, and other materials from brewery mash tuns and similar
vessels, such as are employed in breweries, distilleries, and like places, and also
for the purpose of mixing the materials.

page_text: The object of this invention is to substitute a mechanical equivalent for manual
labour to effect the purposes herein before named.
I attain this object by the means hereinafter described and as illustrated in the
accompanying two sheets of drawings in which my invention is shown applied.
Fig. is a transverse section of a brewery mash tun or like vessel, and Fig. 2
is a plan of the same.
Figs. 3 to 6 are details of the same drawn to an enlarged scale.
In these views similar letters refer to similar parts.
In this invention I place a vertical shaft a in the centre of a vessel as b: I pass
said shaft which may be either tubular or solid, through a stuffing box c and fit
the end thereof into a footstep d: I place a sliding collar or sleeve e on that part
of the aforesaid shaft that is within the vessel, said collar being free to slide
vertically on the shaft a, but is revolved by the shaft.
and is
I construct the collar e with wings or projecting bars as fand f¹ that are either
formed thereon or connected therewith: I attach suitably formed blades or scoops
as g and g¹ to the aforesaid projecting bars, or construct the bars and f¹ so as to
form blades or scoops. One of the blades g is provided with a series of forks and
rakes as which are attached to said blade in a vertical position I fit on the
bar a supplementary blade g³ that is arranged to turn on a centre at
connected to a bar as shown in Fig. 3 which is a fiont view of the blade g³:
said blade is operated by the bar k¹ coming into contact with the fixed vertical
bar during the revolution of the blades g and g¹ which as is shown by the plan
view Fig. 4 causes the blade g³ to be moved from the position represented by
dotted lines, and to approach the blade g', at the same time compressing the
spring between the bar f' and the tail piece g*. When the free end of the
bar passes the fixed vertical bar 1, the compression spring acting on the tail
piece in combination with the resistance of the grains or other material in the
vessel b causes said blade to open outwards until the bar k again comes into
contact with the bar when the blade g³ again approaches the blade g¹. By these
means the materials that are required to be removed are concentrated and pressed
towards the outlet m.
11
Motion is communicated to the hereinbefore described blades or scoops by
connecting the vertical shaft a to the driving shaft by bevel gearing or a worm
and worm wheel which may be fitted to either end of said shaft, or by other
preferred means according to the position of the existing shafting from which
power may be required to be obtained.
In the accompanying drawing the driving shaft on which the pullies and r
are placed is shown fitted horizontally below the vessel b and the vertical shaft a
which supports the blades y and g' is connected therewith by means of the bevel
gearings By the revolution of the aforesaid vertical shaft, the blades g, g', and g³
will scrape the grains or other materials towards and from the centre of the
vessel b so as to be discharged through the aperture m. The hereinbefore
described blades or scoops g and 9' are caused to be lowered automatically as
required for the gradual removal of the spent materials by means either of balance
weights, screw gearing as shown on the drawing or other equivalent. Fig. 5 is
part sectional elevation, and Fig. 6 plan of screw gearing that may be employed;
the vertical screws u and are supported on a bracket v that is fitted on the
vertical shaft a and is revolved with said shaft: the aforesaid vertical screws are
respectively surmounted by a toothed wheel t' and 2 which are securely fitted to
said vertical screws and gear into the stationary wheel t. The wheel t which is
placed loosely on the shaft a is caused to remain stationary by being connected with
the boss of the bevel wheel w, said bevel wheel gearing into the bevel wheel w¹ that
is fitted on the horizontal shaft w³ on which is placed a catch a that prevents any
revolution of said wheels t, w, and w' and the shaft w until purposely released.
The screws u and u' pass through screw nuts u³ fitted in the bars and f¹: by
these means as the bars fand f revolve, the wheels t and t¹ are caused to revolve
around the wheel t, said wheel t thereby imparting rotary motion to the wheels t¹

page_text: and and the screws u and u¹, and by these means the blades 9 and g¹ are caused
to be gradually lowered. If the blades and g₁ are required to revolve at any
particular height, the wheel t is disconnected by drawing back the shaft w
thereby disengaging the wheel w¹ from the wheel to as shown by dotted lines
on the drawing, when the wheel t will run loosely and will not operate the screws u
and u¹.
When the blades g and g¹ are required to be raised for recommencing operations,
the driving power is disconnected in the ordinary manner by removing the driving
strap on to the loose pulley on the shaft q, the bevel wheel w¹ is then caused to
engage with the wheel to and by placing the catch a in action said bevel wheel and
the wheel t may be operated by either the hand wheel or by power communicated
from the main shaft through the pulley a¹. By these means a reverse action of
the screws u and u¹ will raise the blades g and g' to the height required.
When said blades have been raised, the wheel t is again disconnected in the
manner herein before described.
For the purpose of mixing the goods, additional forks and rakes as are fitted
to a bar that is connected to the blade g as shown in Fig. 2 and vertical bars as j³
may be connected to the fixed cross bar b' as in Fig. 1 in such a position that the
rakes j and may pass between them.
I do not confine myself to the precise form and construction or number employed
of either the scoops or the rakes in performing my invention, but;
Having now particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1st. In brewery mash tuns and similar vessels such as are employed in breweries,
distilleries, and like places, the use of revolving blades or scoops for the purpose
and in the manner substantially as hereinbefore described.
2nd. In brewery mash tuns and similar vessels such as are employed in breweries.
distilleries, and like places, the use of revolving bars with forks and rakes
attached thereto for the purpose and in the manner substantially as herein before
described.
3rd. In brewery mash tuns and similar vessels such as are employed in breweries,
distilleries, and like places, the use of revolving blades or scoops in combination
with forks and rakes for the purpose and in the manner substantially as herein
before described.
4th. In brewery mash tuns and similar vessels such as are employed in breweries,
distilleries, and like places, the combination of blades or scoops and screw or other
equivalent automatic lowering mechanism substantially as herein before described.
Dated this 25th day of September 1895.
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.