Improvements in Breaking Down and Blending Machines for Powders and other Substances.
Year: 1888

page_text: Date of Application, 17th July, 1888
Complete Specification Left, 16th Apr., 1889
Complete Specification Accepted, 25th May. 1889
Improvements in Breaking Down and Blending Machines for
Powders and other Substances.
1 BEESTON TUPHOLME 18 Watery Street Sheffield Grocers Engineer do hereby
declare the nature of this invention to be as follows :-
For this purpose I employ a Cylinder its diameter being about one third of its
height. The various ingredients to be broken down and blended are put into an
amalgating hopper or funnel in the top portion of the Cylinder, this said funnel has
several partitions converging into one central vertical tube through this said tube I
pass a rod or handle to move to and fro the slides in the bottom of this said hopper or
funnel to regulate the ingredients passing through and falling upon a sieve; over this
Stationary sieve Rollers are revolved by a central vertical spindle. The said Rollers
being taper converge into the central spindle, the Rollers being fixed in a frame are
dropped upon the square top of the said spindle.
In addition to the said Rollers I employ for breaking down and separating lumpy
powders loose or moveable plates which are fixed in a suitable frame and made to
revolve over the said sieve. I also employ brushes revolving in the same manner
over the sieve; also for other substances 1 have a sieve secured to the said vertical
spindle revolving over and rubbing on the aforesaid stationary sieve, this said
stationary sieve is made firm and supported by an additional stronger sieve of mesh or
supporting rings or bars underneath.
The said stationary sieve being secured in a suitable frame has a hole in the centre
and is dropped over the aforesaid vertical spindle and rests on a projecting flange or
support attached to the sides or wall of Cylinder, immediately under these said Rollers
and sieves I have a revolving convexed plate through which the said vertical spindle
passes. As the various particles are precipitated from the amalgamating hopper and
sieves they fall upon this revolving convexed plate and thus each particle is overlaid
and blended and from this said plate the various particles are centrifugally thrown
against the Cylinder wall and drop into a chamber having a funnel or concaved
bottom. Across the said funnel bottom I have a bar or footstep which supports the

page_text: aforesaid vertical spindle and from this said spindle I have projecting arms which
revolving worm up the ingredients from the bottom and thus all the particles are
thoroughly mixed and blended in bulk, after which a slide is drawn at the
bottom of the said funnel and the whole is precipitated into the receiver or drawer
below.
COMPLETE SPECIFICATION.
Improvements in Breaking Down and Blending Machines for
Powders and other Substances.
I BEESTON TUPHOLME 18 Watery Street Sheffield Grocers Engineer 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 apparatus for breaking down and separating various hard
lumpy and other powders Flours or fluid materials of various consistencies blended
at one and the same operation and in order that this Invention may be more readily
understood I have hereunto appended a sheet of drawings which represent the
apparatus in side elevation.
For this purpose I employ a cylinder A its diameter being about one third its
height the various ingredients to be broken down and blended are put into an
amalgamating Funnel or Hopper B at the top portion of the cylinder A inside at the
bottom of this said Funnel B is arranged one or more large blades C (each
converging towards the centre also other smaller teeth or projections around the
inside of this said Funnel B. In the centre of this said Funnel I have a revolving
worm D with knife edges also teeth which said worm revolves past the projecting
blades and corresponding cutting teeth in the aforesaid Funnel and thus
completely breaking down all lumps also regulating the ingredients passing through
and falling upon a stationary sieve E over this said sieve E rollers F F are revolved
by a central vertical shaft G the said rollers F F (three preferably) being taper
converging to the centre are supported upon axes and fixed in a suitable frame H.
In addition to the said rollers F FI employ for various ingredients loose or moveable
plates 1 the underside (preferably) rounded these said plates 1 swing in the frame
upon pivoted ends. This said frame H is dropped upon the head or square nozzle of
a blending plate J this said nozzle passes through and supports in the centre the

page_text: aforesaid stationary sieve E this said sieve E is fixed in a suitable frame and is
supported underneath by an additional coarse sieve, supporting rings or bars K. This
said stationary sieve E is dropped into a projecting flanged ring L attached to the
sides or walls of the cylinder A. In the centre of this said sieve E I have a hole or
collar through which passes the aforesaid head or nozzle of the revolving blending
plate J. The said blending plate J being (preferably convexed) either solid, perforated
or wire mesh and is supported and rests upon the square top of the aforesaid vertical
revolving shaft G. As the various particles or powders are precipitated from the
sieve they fall on to this said revolving plate and thus each particle is over laid and
blended. From this said plate J the various ingredients are centrifugally thrown
against the cylinder sides or wall.
Across the said cylinder A and immediately under the aforesaid blending plate J
I have a cross bracket supporting the aforesaid vertical shaft G and the bevelled
gearing M. To prevent the dust getting into the teeth of the said wheels M I have
a suitable cover or cap N also to prevent the ingredients coming in contact with the
grease. For efficient lubrication I have the cross bracket chambered O and filled
with a stiff grease. Through this said chamber I pass the horizontal driving spindle P.
Also in the centre of this said cross bracket I have a recess or well Qround the bush for
grease with suitable cap. Through this said well Q I pass the aforesaid vertical
shaft G. After the various particles or ingredients have been thrown from the
convexed blending plate J they fall into a bulk mixing chamber R having a truncated
cone or concaved bottom S. Across this said concave bottom I have a bracket or
bar T which supports the aforesaid vertical shaft G and from this said shaft G I have
one or more projecting curved arms or blades U U closely fitting the concaved
bottom S which revolving push or worm up the ingredients from the bottom, thus the
whole of the ingredients are thoroughly mixed and blended in bulk, after which
slide V is drawn at the bottom of the said bulk blending chamber R and the whole is
precipitated into the receiver or drawer W below.
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
1st. The crushing of hard lumpy powders by means of the revolving worm, blades
and teeth in the Funnel.
2nd. The Sifting by means of rollers and moveable plates working on sieves.
3rd. Perfect blending by means of the revolving plate and curved arms or blades
which revolve in the bulk mixing chamber.