Year: 1887

page_text: [, WILLIAM FRAZER COCHRANE, residing at Cambridge City in the County of
Wayne, and State of Indiana, one of the United States of America, Gentleman, 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 and constitutes an improvement upon the roller mill system
described in my patent No. 11554, granted September, 29, 1885, and it consists in
the novel and improved arrangement of the roller mill frames and the driving
mechanism for actuating the several mills as hereinafter more fully described and
pointed out in the claims.
In the accompanying drawings:-
Figure, 1, is a top plan view illustrating the manner of constructing the frame and
connections with the driving shaft.
Figure, 2, is a transverse vertical section on the line,, figure, 1.
Figuro, 3, is a plan view of a machine illustrating modifications in structure.
The principal members of my present improved system comprise first, a number of
pairs or series of pairs of rolls, A, such as described in my before mentioned patent,
radially disposed and having their driving shafts, A', prolonged or continued towards
a common centre; second, a transverse or vertically arranged shaft. B. centrally
located with reference to the driving shafts, A', of the rolls and deriving motion from
the prime motor; third, suitable gearing for transmitting motion from said centrally
located driving shaft to each of the radially disposed shafts, A', of the series of rolls,
and fourth, a frame or frames for sustaining the several sets of operating mechanism
in proper relation to each other and the driving shaft, B.
The preferred plan of an apparatus for embodying my invention is illustrated in
figures, 1, and, 2, the details of which are as follows:-
-
The frame, D, preferably cast in one piece, but which can be made in sections if
desired, consists of a series of roller frames, 1, disposed radially or nearly so with
reference to a central ring, 2, the several frames, 1, being connected together at their
inner ends by intervening ribs or braces, 3, and to the inner ring, 2, by bars or
braces, 4.

page_text: The frames, 1, separately considered, may be in form and construction similar to
those shown in my said prior patent or in either of my applications filed herewith.
The rear roller, 5, of each pair is mounted in fixed bearings, 6, and the hollow front
roll, 7, in adjustable bearings, 8, with the shaft, 10, running through the hollow
roll supported in fixed bearings, 11, and connected to the journal of the adjustable
roll by a flexible coupling, 12, and to the back roll, 5, by gearing, 13, of any approved
form or construction.
Any desired number of pairs or sets of rolls to be driven from each shaft, 10, may
be arranged in line as described in my before mentioned patent and applications, in
which case the frames, 1, as shown in the drawings would each represent one end of
a number of frames arranged in series with the shaft, 10, passing through all the
hollow adjustable rolls of the several pairs or sets.
The several shafts, 10, disposed on lines radiating from the central driving shaft, B,
are supported in boxes or bearings, 14, on the ring, 2, and each shaft is provided with
a bevel pinion, 15. The central driving shaft, B, supported centrally within the
ring, C, in a bearing, 16, carries a bevel or other suitable gear wheel, 17, located above
but resting upon and engaging the upper peripheries of all the hevel pinions, 15, the
weight of the said wheel and shaft serving fo hold the former at all times in engagement
with the pinions on the several shafts, 10.
This central shaft, B, which is designed to be connected to a water wheel, steam
engine or other motor, serves as the main driver for the entire system composed
of the several sets or series of pairs of rolls each having a single driving shaft.
Instead of casting the entire frame in one piece, which for economy in manufacture
may be preferred, it may be made in sections and the central portion of the frame
may be made angular instead of circular. These modifications are illustrated in
figure, 3, wherein the central portion of the frame, formed in one piece, comprises
the inner ring, 2. for the bearings for the shafts, 10, and an outer ring, 20, for the
reception, support and attachment of the several frames. 1. These frames, 1, may be
composed of end pieces separated by tubular cross pieces, and united together and to
the outer ring by through hols as described in one of my applications or they may
be constructed of girders, 24, and cross pieces, 25, united together and to the ring, 20,
by hook bolts, 26.
Among the advantages secured by the present improved construction and arrange-
ment of the frames and driving mechanism may he mentioned economy in manufacture,
where the several roll frames are formed integral with the central frame; economy
in power by reducing both shafting and bearings to the minimum; compactness and
convenience with ample facilities for enlarging the capacity of the mill by increasing
the number of pairs of rolls in any one or more of the series and this without changing
the driving mechanism or adding new parts thereto, together with numerous other and
additional features obvious to those skilled in the art.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
1. In a system such as described, the combination with a central frame and driving
shaft, of a series of pairs of rolls each pair provided with a driving shaft radially
disposed with respect to the first named driving shaft and connected thereto by gearing,
substantially as described.
2. The combination in a system such as described; and with the central casting
and radially disposed frames, of the series of pairs of rolls mounted in said frames,
the shafts passing through the hollow adjustable rolls of the series, and each
provided with a pinion and the main driving shaft centrally arranged and provided
with a wheel engaging pinions on the several roll shafts, substantially as and for the
purpose set forth.
3. The combination in a system such as described, of the series of roll frames
connected together and to the central rings, the roll mills mounted upon said frames,
the radially disposed shafts each passing through a hollow adjustable roll of one of the

page_text: several mills, the vertical shaft driven from a prime motor and provided with a wheel
located above and resting in contact with pinions on the several roll driving shafts as
and for the purpose set forth.
4. In a system such as described wherein a series of radially disposed shafts are
employed for driving the separate sets of rolls, and in combination with said roll
shafts and the pinions secured to their inner ends, a vertical driving shaft carrying a
wheel located above but resting upon the said several pinions and maintained in
contact therewith by gravity, substantially as and for the purpose set forth.
5. The combination to form a system such as herein described of a central frame
provided with a series of radially disposed roll frames, a driving shaft for each set
of rolls, a central main driving shaft and gearing connecting said main shaft with
all of the roll shafts, to simultaneously drive the latter, substantially as described.
6. The improved frame constructed substantially as hereinbefore described, of the
central ring and the series of radially arranged roll frames connected together and
to said central ring, the whole combined and arranged as and for the purpose
set forth.
7. The combination with a vertical main driving shaft, and its gear wheel, of a
series of roll shafts radially arranged with respect to the main driving shaft and
provided with pinions gearing with the wheel thereon, each of said roll shafts
supported in fixed bearings passing through the hollow adjustable roll of a pair
or set of rolls and connected to said roll by a flexible coupling, substantially as
described.
8. The combination to form a system such as herein described of the several pairs
of rolls supported in separate frames and radially disposed about a central main
driving shaft, a driving shaft passing through the hollow adjustable roll of each set,
said several driving shafts converging towards the central driving shaft, bearings
supporting the ends of the roll driving shafts, pinions applied to said last mentioned
shafts, and a gear wheel mounted upon the main driving shaft and held in contact
with the series of pinions on the roll shafts, substantially as and for the purpose set
forth.
لية
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