IMPROVEMENTS IN THE MANUFACTURE OF ELEVATOR BUCKETS
Year: 1885

page_text: We SAMUEL STORER STOTT and RICHARD BIRTWISTLE, of the firm of S. S. Stott
and Company, of Haslingden, Lancashire, Engineers, do hereby declare the nature
of said Invention for IMPROVEMENTS IN THE MANUFACTURE OF ELEVATOR BUCKETS,
to be as follows :—―
.Our invention consists in an improved construction of the buckets used in
elevators for raising grain, flour, seeds, coal, coke, ore, and other substances, also oil,
water, or other liquids, the object of our Invention being to render the buckets
cheaper, lighter and stronger than those of the ordinary construction and to insure
a freer and better delivery of the substance raised.
To effect this we block or form each bucket from one solid sheet of metal of the
required size in the following or in other convenient manner :-
We employ two dies (a he and a she) of suitable shape and size: the sheet of
metal after having been cut to the required shape and size is then placed over one
of the dies say the hollow die, into which it is forced by the other die, the required
pressure being obtained by hydraulic steam or other power: we employ an adjust-
able draw plate or plates to prevent the edges of the sheet of metal from crimping,
but in some cases as for instance when a deep narrow bucket is required we leave
the edge or mouth of the bucket crimped or zig-zag. It is sometimes advantageous
to heat the sheets of metal in order to facilitate the blocking process.
Sheets of various kinds of metals may be employed such as steel, iron, tin, copper,
brass and muntz metal and more than one set of dies may be used.
.
By the use of our Invention we produce each elevator bucket from a solid sheet
of metal without any revetting and without any overlapping edges to hinder the
free delivery of the substance raised.
H. B. BARLOW,
Agent for Applicants,
4, Mansfield Chambers,
17, St. Ann's Square, Manchester.

page_text: We SAMUEL STORER STOTT and RICHARD BIRTWISTLE, of the firm of S. S. Stott
and Company, of Haslingden, Lancashire, Engineers, do hereby declare the nature
of said Invention for IMPROVEMENTS IN THE MANUFACTURE OF ELEVATOR BUCKETS,
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
Our invention consists in an improved construction of the buckets used in
elevators for raising grain, flour, seeds, coal, coke, sand, ore and other substances,
also oil, water, or other liquids, the object of our Invention being to render the
buckets cheaper, lighter and stronger than those of the ordinary construction and
to insure a freer and better delivery of the substance raised.
To effect this we block or form each bucket from one solid sheet of metal of the
required size in the following or in other convenient manner :-We employ two
dies (a he and a she) of suitable shape and size; the sheet of metal after having
the
been cut to the required shape and size is then placed over one of the dies, say,
hollow die, into which it is forced by the other die, the required pressure being
obtained by hydraulic, steam, or other power; we employ an adjustable draw plate
or plates to prevent the edges of the sheet of metal from crimping but in some cases,
as for instance, when a deep narrow bucket is required, we leave the edge or mouth
of the bucket crimped, or zig-zag. It is sometimes advantageous to heat the sheets
of metal in order to facilitate the blocking process.
Sheets of various kinds of metal may be employed such as steel, iron, tin, copper,
brass and muntz-metal and more than one set of dies may be used.
By the use of our Invention we produce each elevator bucket from a solid sheet
of metal without any rivetting and without any overlapping edges to hinder the
free delivery of the substance raised.
And in order that our Invention may be fully understood and readily carried
into effect we will proceed to describe the accompanying Sheet of Drawings,
reference being had to the figures and letters marked thereon.
Figure 1 is a front elevation of part of a machine which we employ for punching
or cutting out the sheets of metal from which the elevator buckets are formed.
Fig. 2 is a plan of the lower part of the machine. Fig. 3 shows in plan and side
view one of the sheets of metal punched out by the said machine. Fig. 4 is a front
elevation, partly in section, of part of a machine with a pair of dies which we
employ for blocking or forming the elevator buckets. Fig. 5 is a plan of the lower
part of the machine with the draw plate removed. Fig. 6 is an end view. Fig. 7
a side view and Fig. 8 a plan, all on an enlarged scale, of an elevator bucket
blocked in the machine illustrated by Figs. 4 and 5, and Fig. 9 shows seven
different shapes of buckets made according to our Invention.
In Figs.
and 2.-a represents the large sheet of metal which we place in the
lower part of the machine against the adjustable stop b, and over the die c which is
made of any suitable size and shape according to the kind of bucket to be formed;
we then cut out the piece or plate d shown in Fig. 3 from the sheet of metal a by
means of the punch e, which is actuated by steam, hydraulic, or any convenient
motive power.

page_text: The plate d is now ready for the blocking process which we perform in the
machine partly shown in Figs. 4 and 5 in which is the she or hollow die of a
suitable size and shape round the edges of which is formed the recess f³ corre-
sponding in size to the plate d; when the plate & has been laid in the recess f¹ it
is partially covered by the adjustable draw plate g which is placed over it and
clamped or secured in its position by driving the taper cotter pins h into the slotted
studs i. The he, or solid, die j which is actuated by steam, hydraulic, or other
convenient motive power is then caused to descend upon and force the plate & into
the hollow die f thereby causing it to assume the shape illustrated by Figs. 6, 7,
and 8 and producing an elevator bucket from the metal plate & without any cutting
or rivetting and without any overlapping edges.
The elevator buckets may be formed of any desired shape and size according to
the shape and size of the dies employed.
Fig. 9 shows some out of the many kinds and shapes of buckets which we are
enabled to make by varying the form of the dies; The bucket marked O is shown
with its mouth crimped or puckered. This result is obtained either by dispensing
with the draw plate g and leaving the edges of the plate & free to pucker or by
using dies constructed specially for this purpose.
We would have it clearly understood that we do not limit ourselves to the exact
details of the process herein described or of the means used for carrying the same
into effect as they may be varied or modified without departing from the nature of
our Invention. It is obvious that the sheets of metal may be cut into plates of any
required shape and size and then blocked or formed into buckets by other processes
or by other machinery than by that herein before described so long as such process
or machine enables an elevator bucket to be blocked or formed from one solid sheet
or plate of metal without any cutting, rivetting or overlapping edges.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed
We declare that what we claim is
The manufacture of elevator buckets by blocking or forming each elevator bucket
from a solid sheet or plate of metal of the proper shape and size without any cutting
rivetting or overlapping edges substantially in the manner herein shown and
described for the purposes specified.
J
1 11
30
T
1007
H. B. BARLOW,
Agent for Applicants,
4, Mansfield Chambers,
17, St. Ann's Square, Manchester.