Improvements in the Construction of Agitating and Mixing Machines.
Year: 1894

page_text: Date of Application, 27th Feb., 1894
Complete Specification Left, 26th Nov., 1894-Accepted, 9th Feb., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Agitating and Mixing
Machines.
ALEXANDER AIRD 25 Broughton Street Salford Manchester Sheet Metal
Worker JAMES BURT 9 Wallness Road Lower Broughton Manchester Finishing
Works Manager do hereby declare the nature of this invention to be as follows:-
Our improved machine is designed to more efficiently incorporate ingredients
having a wide difference in their specific gravity and to complete the work in less
time than is done with the existing machines.
Our improved machine is particularly adapted for the use of warp sizers stiffeners,
calico printers, bleachers etc.
Our invention consists of a number of perpendicular rotating compound or
simple inverse screw worms of special geometrical form which we will hereafter
describe as perpendicular worm propellers.
We may use in place of the inverse screw propeller just mentioned any other
simple cavity or cellular form having curved or plain faces such as the ordinary
propeller or paddle form, but we prefer the perpendicular worm propeller.. On the
axis of each one and at a convenient distance above the worm propeller we securely
fix a tooth wheel. We afterwards fit them into a radial skeleton frame or cage
in a vertical position and in such a manner that they will revolve easily upon
their own axis and gear into each other and revolve round a fixed central wheel
when a circular motion is given to the radial skeleton frame or cage. The central
wheel may revolve in the opposite direction which would increase the velocity of
the worm propellers and give another concentric motion but we prefer the same
to be a fixture. On the top of the skeleton frame or cage before mentioned we
securely fix a hollow shaft or sleeve having a projecting boss just above which
we have suitable mechanism to produce the necessary circular motion, such as
bevel spur, pulley or worm wheel.
The machine as described is placed in a suitable vessel which may or may not
be jacketted, in the bottom of said vessel we securely fix a step into which we
insert one end of the hollow or solid shaft (preferably a hollow shaft) in a vertical.
position the end of the shaft inside of the vessel and just above the fixed step in
the bottom of the vessel we either make direct perforations or insert curved jets
or radiating perforated tubes of any convenient shape at the opposite end of this
hollow vertical shaft we connect a steam and water supply which when turned on
forcibly escapes through the perforations into the vessel creating a flowing motion
and supplying the necessary heat and water.
At a convenient point or place on the central hollow shaft we securely fix. the
tooth wheel already described as the central fixed wheel.
Over this central fixed shaft we place the radial skeleton frame or cage before
described supported in such a way that it will revolve casily round the fixed central
shaft when driven.
By these mechanical combinations we obtain a number of horizontal and
perpendicular circular motions and a series of eccentric inverse curved backward
and forward motions.
Dated th:- och
C
ALEXANDER AIRD.
JAMES BURT.

page_text: Improvements in the Construction of Agitating and Mixing
Machines.
°
ALEXANDER AIRD 25 Broughton Street Salford Manchester Sheet Metal
Worker JAMES BURT, 9 Wallness Road Lower Broughton Salford Manchester,
Finishing Works Manager 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 :-
Our improved machine is designed to more efficiently incorporate ingredients
having a wide differance in their specific gravity and to complete the work in less
time than is done with the existing machine.
The improved machine particularly adapted for the use of warp sizers,
stiffeners calico printers, bleachers paint manufacturers and other purposes.
Our invention consists of a number of perpendicular rotating compound or
simple screw worms of special geometrical form which will hereafter be described
as perpendicular worm propellers or we may use in place of the screw propellers
just mentioned any other simple cavity or cellular form having curved or plain
faces such as the ordinary propellers or paddle form; on the axes of each one
and at a convenient distance above the worm propellers a tooth wheel is securely
fixed. They are then fitted into a radial skeleton frame or eage in a vertical
position and in such a manner that they will revolve easily upon their own axes
and gear into and revolve round or within a fixed central wheel when motion is
given to the radial skeleton frame or cage; the central wheel may be made to
revolve which would increase or diminish the velocity of the worm propellers and
give another concentric motion but we prefer the same to be a fixture. On the
top of the skeleton frame or cage before mentioned is securely fixed a hollow
shaft or sleeve having a projecting boss just above which suitable mechanism is
fixed such as bevel, spur, pulley or worm wheel.
:
The machine as described is placed in a suitable vessel which may or may not
be jacketted; in the bottom of said vessel a step is securely fixed into which is
inserted a hollow or solid shaft (preferably a hollow shaft) in a vertical position
On the end of the shaft inside the vessel and just in or above the fixed step in the
bottom of the vessel, perforations are made and jets or radial tubes inserted.
These radial tubes, with or without; perforations may be placed at any con-
venient point and form part thereof of central shatt; arranged so to revolve with
the cage or frame. The opposite end of this hollow vertical shaft is connected
with a steam and water supply which when turned on forcibly escapes through the
perforations into the vessel creating a flowing motion and supplying the necessary
heat and water.
If no perforations are made the condensed steam will be drawn off in the
ordinary way. At a convenient point or place on or around the central hollow
shaft is securely fixed the central fixed wheel which may form part of the bridge
supporting the general structure or be directly fixed on the central fixed shaft.
Over this central fixed shaft is placed the radial skeleton frame or cage before
described, supported in such a way that it will revolve easily round the fixed central
shaft when driven. By these mechanical combinations is obtained a number of
horizontal, perpendicular, circular motions, and a series of eccentric inverse curved
backward and forward motions.
To further elucidate my said invention I have appended drawings showing one
form of machine embodying my said invention.
(Fig. 1) is a front view showing front side of simple screw worm propellers of
special constraction and the general mechanical arrangements.

page_text: (Fig. 2) shows the back side of simple screw worm propellers and the general
mechanical arrangements.
(Fig. 3) front view of our compound screw.propeller of special construction.
The letters marked on the drawings indicate the various parts embodied in our
said invention..
B is
A A bridge on which the centre tooth wheel B is cast or fitted thereon.
the central fixed wheel around which the cage CD JE revolves also the
wheels M M with shafts K. K. carrying thereon worm propellers or any other
suitable form. C is a hollow shaft or sleeve on which suitable mechanism is fitted
to communicate the necessary power to cause the cage or frame to revolve
C might conveniently be extended to E E and thereby dispense with G G.
DD are radial arms which form top end of the skeleton frame or cage.
EE are radial arms which form the bottom of the skeleton frame or cage which
could be conveniently made hollow and perforated thereby taking the place of the
radial perforated pipes or jets previously described. The bottom parts of E E are
cast or fitted with radial curved blades with curved projections to prevent the
formation of any deposit on the bottom of vessel when the machine is working Fa
boss forming part of E E and fitting into H.
GG is a hollow or solid shaft placed inside the sleeve C and passing through
the boss F on the bottom of cage or frame E. E. and resting on H.
G G may be made a fixture by securely fastening it above the sleeve C or
GG may be fixed to the radial skeleton frame or cage and be used in place of C.
If C was extended or produced to join E E G G could be dispensed with for
some purposes but it is advisable to use G G in some cases because it allows a
slight modification of the mechanical arrangements; for example it might not be
found convenient to have the bridge A A with a fixed wheel or otherwise.
Therefore B in such a case would be securely fixed on shaft G G just below D D
and the wheels M. M. also fixed under D. D on there respective shafts K K and
engaged into B.
Ha socket in bottom of vessel P P. J J are blades set at an angle to act as
scrapers and cause the material to slide on the screw worm propellers they also
form the necessary stays to bind the ends D D and E E together and complete
the skeleton frame or cage into which the shafts K K are suitably fitted. K. K. are
shafts carrying the wheels M. M. and upon which is constructed the compound or
simple screw worm propellers L L.
LL the simple or compound screw worm propeller Fig. 1. 2. 3. the special con-
struction of which is as follows during the first part of the revolution of the screw
thread or surface the pitch is more or less uniform this changes in the next part
of the same revolution to a pitch of no slope and in some cases even the reverse
this again changes in the next and remaining part of the revolution to a forward
pitch more or less uniform. They can be constructed upon tubes or on the shafts
or cast hollow and shafts inserted. M M tooth wheels on shafts K K and engaged
into and which will revolve round the central wheel B when motion is given to the
radial skeleton frame or cage. N N boles for bolts or otherwise fixing the
shafts K K into the cage or frame C D J E.
00 steps inserted in bottom of cage or frame. PP the vessel and flange or
brackets to fix if necessary the bridge A A.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
(First.) The use and construction of one or more screw worm propellers of
special construction described herein and shown on the annexed drawings.
(Second.) The use and construction of mixing machines having propellers
revolving with and within the frame or cage when motion is given to the cage or
frame.

page_text: (Third.) The general combination of parts constituting the machine as described
and the various modifications detailed within.
Dated this 24th day of November 1894.
ALEXANDER AIRD,
JAMES BURT,
Applicants.