Elevating Machine for Elevating Grain, Pulverized Minerals, and the like
Year: 1886

page_text: Date of Application, 17th Mar., 1886.
Complete Left, 16th Dec., 1886.
Complete Accepted, 18th Jan., 1887.
Elevating Machine for Elevating Grain, Pulverized Minerals,
and the like.
JOB EDWARDS Junction & Eagle Tube works Portway Road Wednesbury Gas
Tube & fitting manufacturer & general Smith do hereby declare the nature of this
invention to be as follows:-
My invention is an improved machine for Elevating grain pulverized mines or
minerals & the like. The machine will raise to any reasonable height and deposit the
grain or other substance in a continuous stream on to any floor of the mill or building.
The machine is made of iron, steel, brass, copper or other metal or metals & consists of
a cylinder inside which is placed & fixed a screw or series of screws. These screws are
driven by tooth wheels or by friction rollers, or direct without wheels. The driving
gear is attached to a metal frame fixed on the bottom floor of the building & driven
either by gear, or a bolt of metal or an endless chain. The machine will be made
entirely of steel, brass, Iron, or other metal and no wood or canvass will form any
part of it.
use.
It will be fire proof and consequently much safer than the kind of elevator in present
It will give out neither dust or dirt when at work, and will not sheed any of the
grain or other substance during the process of elevating. It will take up but little
space & will be very durable & inexpensive.

page_text: COMPLETE SPECIFICATION.
.
Elevating Machine for Elevating Grain, Pulverized Minerals,
and the like.
I, JOB EDWARDS, of the Junction and Eagle Tube works, Portway Road, Wednes-
bury, in the county of Stafford, Gas Tube and fitting Manufacturer and general smith,
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
My invention relates to an improved machine for elevating grain, pulverized mines
or minerals and the like, whereby the grain or other substance can be raised to any
reasonable height and deposited in a continuous stream on to any required floor of the
mill or building.
For this purpose the machine is constructed of a cylinder or tube inside which is
placed an Archimedean screw or series of screws. The screws are driven by toothed
wheels, or by friction rollers, or direct without wheels. The driving gear is attached
to a metal frame fixed on the bottom floor of the building, and driven either by gear,
or a bolt of metal, or an endless band or chain. The machine is made entirely of steel,
brass, iron, or other suitable metal, no wood or canvas being used to form any part of
it. It is fire-proof and consequently much safer than elevators at present in use.
It
allows neither dust nor dirt to escape when at work and does not spill any of the grain
or other substance during the process of elevating. It occupies but little space and is
very durable and inexpensive."
.
In order to enable my invention to be fully understood I will proceed to describe the
saine by reference to the accompanying drawings in which figure 1 represents an
elevation partly in section of an elevating machine for elevating grain, pulverized
minerals, and the like, constructed according to my invention; figures 2 to 7 are
detached views of some of the parts of the machine. Similar letters in all the figures
represent similar parts.
is the cylinder or tube and b, is the Archimedean screw which I place and arrange
so as to be rotated within the cylinder or tube a, the screw being formed in sections or
lengths, as clearly shewn in figure 2, which represents an elevation of two of such
lengths (the bottom and another length); figure 3 is a plan of the underside of figure 2;
c, and d, are the toothed bevil wheels for communicating the required rotary motion to
the screw b; e, is the metal frame fixed to the bottom Hoor y, of the building and to
which the bearing, of the shaft a¹, of the bevil wheel d, is fixed; h, is a portion of
the endless band by which the bevil gear c, d, is driven, the said band communicating
motion from a suitable motor to a driving pulley i, on the shaft a¹; j, is a loose pulley
for throwing the machinery out of action. The bevil wheel c, is fixed on the spindle k,
of the bottom length of screw b. This spindle is passed through the top of the frame e,
in which is placed a steel disc b¹ (shewn in elevation at figure 4) on which rests the
bottom end of the spindle k, the said end being made of hardened steel so as to cause
as little friction as possible; the cup bearing in this manner bears the whole of the
weight of the screw as well as the load it is elevating. Figure 5 is a plan view of the
cup bearing . The cup bearing 1, is carried by a stanchion bar m, which is cast or
fixed on the frame e. In the stanchion bar m, is fitted a screw pin n, which by screwing
up the same will raise the elevating screw b, and keep the bottom or feeding part of the
screw as it rotates from bearing too hard on the base plate o.
The cup bearing 1, is fixed firmly on the stanchion bar m, by driving keys p, over
the flanged edges g, g, of figure 5 on each side thereby holding it firmly between two
snugs. figure i

page_text: The base plate o, is bolted firmly to the frame e, and has a hole bored in the centre
which just admits the bottom screw spindle k; on the plate o, is fixed a large hoppers,
which will contain a sufficient quantity of the material to be elevated to afford a constant
feed for the elevating screw for a considerable time. In the hoppers, is loosely placed
a sieve t, whose meshes are large enough to allow the grain or the like to pass freely,
but small enough to stop nails, screws, or stones from passing through. At the bottom
of the cylinder or tube a, which is fixed on the plate o, are a series of openings u,
forming a kind of archways large enough to allow as much grain or minerals to be
taken in as the elevating screw b, can take away.
The cylinder tube or column a, is of a diameter and strength suitable for its purpose,
and is made in suitable lengths and jointed as required by means of flanges e, one of
which is shewn in plan at figure 6, and two or more bolts and nuts as shewn at w,
figure 1; one of the flanges v, is recessed so as to allow the faces of the lengths of
cylinder or tube a, to come close together so as to leave no uneven surface in the
cylinder a, which might damage the elevating screw b. The machines can in this
manner be carried to any required height and they can be constructed to raise any
required quantity of material. The screw b, is placed in the cylinder or tube a, in short
lengths as shewn. They are made with a square core-hole through them so as to be
passed on to or threaded as it were on driving cores, (a portion of one of which is
shewn detached in elevation at figure 7) which consist either of square bars of iron or
square tubes of wrought iron or steel. The cores, are of such a length and are so
arranged that they break joint with the lengths of screw b, the joints of which
correspond with the cylinder or tube joints. The lengths of screw are so formed that
it is immaterial which end is first placed on the bottom length.
Figure 3 illustrates the bottom end of the bottom length of screw formed flat where
it rotates over the face of the base plate o, where it takes its feed at the bottom of the
hopper s. The spouts or outlets y, of the elevator are made and fixed to suit the kind
of material required to be raised.
I have described and illustrated my improved elevating machine arranged to be
operated by bevil toothed gearing and a driving pulley actuated by a suitable motor
but it will be obvious that it can be driven by other suitable means such as those herein-
before referred to.
Further instead of being arranged to elevate in a vertical position it can be placed
so as to raise the materials in an oblique direction and where required for raising
material out of the hold of a vessel or like places or for raising water or oil, the driving
power can be applied at the top of the column or cylinder instead of at the bottom as
hereinbefore described and illustrated, the feeding end of the screw being placed and
working in the material or substance which it is required to raise. The sieve t can if
required be.dispensed with.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is:
1. In an elevating machine such as that herein described the use of a screw or screws
working inside a tube or cylinder and formed in lengths or sections adapted to be
connected together and taken apart as required substantially in the manner and for the
5 purposes herein-before described.
2. The combination of parts forming the improved elevating machine for elevating
grain, pulverized minerals and the like substantially as herein before described and
illustrated in the accompanying drawings.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.