IMPROVEMENTS IN MACHINERY AR HAD TOUR
Year: 1882

page_text: LETTERS PATENT to Charles Scriven of the Leeds Old Foundry Leeds, in the
County of York, Engineer for an Invention of IMPROVEMENTS IN MACHINERY
AR
HAD TOURWA
ATVA
PROVISIONAL SPECIFICATION left by the said Charles Scriven at the Office
of the Commissioners of Patents on the 14th August 1882.
CHARLES SCRIVEN, of the Leeds Old Foundry Leeds, in the County of York,
Engineer, "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR BENDING, FLANGING,
AND SHAPING METAL
This invention relates to machines for bending flanging and shaping metal
wherein there is employed a fixed block or stake on which the metal object is
placed and held by a gripping or holding beam to be bent or operated upon by an
adjustable roller or rollers.
According to my invention in such a machine the said holding or gripping beam
and the roller or rollers are operated by fluid pressure in suitable cylinders, and
the apparatus is provided with a system of distribution valves, so that the different
parts can be put into separate or combined action as desired.
In place of the roller or rollers, suitably formed blocks may be employed for
pressing against and bending the metallic objects.
The bending or forming of the object under treatment may take place simul-
taneously on both sides of the block or stake; or if preferred one side only can be
operated on.
The block or stake over which the objects are bent is made capable of being
altered from a parallel to a taper form, by dividing the block or stake vertically
and longitudinally and separating the parts by a series of screws (or their
equivalent) and securing the same to each other by bolts or screws.
According to one arrangement of my improved machine, each end frame is
provided with a cross slide in which are bearings to receive the necks of the rollers,
each of these bearings has bolted to it, or cast in one piece therewith a cylinder
furnished with suitable gear for admission and emission of actuating fluid such as

page_text: steam, water, or oil and provided with stationary pistons or rams, the whole being
arranged that the bearings can be moved backwards or forwards either singly, or
in pairs or together. Each cross-slide is also held or supported by one or more
pistons or rams working in a cylinder or cylinders, and operated by fluid pressure
therein, and the slide thereby can be raised or depressed at will.
The gripping or holding beam which may have its face of any desired con-
figuration so that it corresponds with that of the block or stake, is likewise held or
supported at each end or at intervals, by pistons or rams of cylinders in which
steam, water oil or other medium may be employed for the actuation thereof by
which it can be forced on the block or stake.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles Scriven in the Great Seal Patent Office on the 13th February
1883.
CHARLES SCRIVEN, of the Leeds Old Foundry, Leeds in the County of York,
Engineer IMPROVEMENTS IN MACHINERY OR APPARATUS FOR BENDING, FLANGING
"
AND SHAPING METAL
"
This invention relates to machines for bending, flanging and shaping metal
wherein there is employed a fixed block, stake or table on which the metal object
is placed and held by a gripping or holding beam to be bent or operated upon by
an adjustable roller or rollers.-According to my invention, in such a machine the
holding or gripping bean, and the roller or rollers are operated by fluid pressure in
suitable cylinders and the apparatus is provided with a system of distribution
valves so that the different parts can be put into separate or combined action as
desired. In place of the roller or rollers, suitably formed blocks may be employed
for pressing against and bending the metallic objects. The bending or forming of
the object under treatment may take place simultaneously on both sides of the
block, stake or table, or if preferred one side only can be operated on. The block,
stake or table over which the objects are bent is made capable of being altered
from a parallel to a taper form by dividing the block, stake or table vertically and
longitudinally and separating the parts by a series of screws such as T (or their
equivalent) these screws may be so formed as to hold the parts together, or other
bolts may be employed for such purpose.
According to one arrangement of my improved machine, each end frame is
provided with a cross-slide in which are bearings to receive the journals of the
rollers, each of these bearings has bolted to it or cast in one piece therewith a
cylinder furnished with suitable gear for admission and emission of actuating fluid,
such as steam, water or oil, and provided with stationary pistons or rams, the
whole being so arranged that the bearings can be moved backwards or forwards
in pairs or together as hereinafter described. Each cross-slide is also held or
supported by one or more pistons or rams working in a cylinder or cylinders, and

page_text: operated by fluid pressure therein, and the cross-slide thereby can be raised or
depressed at will.The gripping or holding beam, which may have its face of any
desired configuration (so that it corresponds with that of the block, stake or table)
is likewise held or supported at each end or at intervals by pistons or rams of
cylinders in which steam, water, oil or other medium may be employed for the
actuation thereof, by which it can be forced on the block, stake or table.
In the accompanying sheet of drawings like parts are marked with the same
letters in the several views wherein such parts appear. Fig. 1, is an end elevation
partly in section, of a machine according to my invention. Fig. 2. is a side
or front elevation. Fig. 3, is a plan. Fig. 4. is a sectional elevation in the
line A, B, Fig. 2.-C, C', are the end frames of the machine in which are mounted
the cross-slides D, D', provided with horizontal slots D", and D". In these slots
are mounted the moveable bearings E, E¹, E", and E, to which are attached or
cast the cylinders F, F¹, F", and F-The openings in the said bearings for the
reception of the journals of the rollers G, G', are bellmouthed from about the centre
of their length in both directions so as to admit of the rollers being moved about
in various directions to suit the form to which a plate under treatment is required
to be shaped, bent or flanged. To the cross-slides D, D', are attached piston
rods H, H, with pistons I, I', fitting in the cylinders F, F, F, and F, these
cylinders together with the bearings E, E¹, E", and E, carrying the rollers G, G', can
be caused to move horizontally by fluid pressure applied thereto simultaneously on
corresponding sides of the pistons I, I¹, at both ends of the machine, so that the
rollers G, G', will approach or recede from or remain parallel with each other as
may be requisite. Or by the simultaneous admission of fluid pressure at both ends
of the machine but on contrary sides of the said pistons at one end of the machine
to those at the other end the roller bearings at one end inay be caused to approach
each other, while those at the other end recede from each other. The piston rods
H, H', are each provided with two longitudinal ports I", and I", for conveying
fluid pressure to the cylinders F, F, F, and F, for movement of the roller
hearings above referred to. The port I", opens sideways into corresponding ends of
the said cylinders F, F¹, F", and F, and the port 111, also opens sideways into the
contrary ends thereof. The said pressure is controlled by a system of distribution
valves, consisting of ordinary three ported slide valves, these valves being well
understood are not shewn in the drawings. From them the fluid under pressure
proceeds through pipes J, J, which are articulated to compensate for the rising and
falling movement of the cross-slides D, and D'.-K, K', are cylinders in the upper
parts of the end frames C, C³, fitted with pistons L, L', and rods L", L", connected
to the cross-slides D, D' so that by fluid pressure applied to these cylinders K, K',
and properly controlled by a distribution valve as above described a vertical to and
fro movement can be communicated to the cross-slides D, D¹, and the rollers G, G',
the downward movement causes these rollers to operate on the object M, to be
shaped, the dotted lines M, show a form to which such object may be shaped. The
cross-slides D, DI, and the rollers G, G¹, may be moved simultaneously or otherwise
as required to suit the work to be done.-N, is the block, stake or table upon which
the object to be operated upon is placed and upon which it is firmly held by the
beam O, aided by fluid pressure adimitted to the cylinders P, P¹, (attached to the
upper parts of the frames C, C¹) through the ports Q, Q', and acting on the top sides
of the pistons R, R', the rods of which (R", and R") carry the beam 0,-The
releasing of the shaped object (M' Fig 4) is effected by admitting through the
ports S, S', fluid pressure to act against the underside of the pistons R, R³, thus
raising the beam O, off the shaped object, which can then be removed from the
machine in an endwise direction. In order to adapt the block, stake or table N, for
the shaping of tapered objects of various sizes I divide it vertically in a
longitudinal direction and adjust the parts in relation to each other by a series of
screws T, For shaping small or narrow objects I use a "form" N', of the desired
configuration which is fixed on the top of a solid block, stake or table N", the
.
.

page_text: rollers G, G¹, or other suitable shaping blocks being caused to descend as before
referred to.
Having now described the nature of the said Invention and the manner of
carrying the same into practical effect I would have it understood that what
I consider to be novel and original and therefore claim as secured to me by the
Letters Patent hereinbefore first in part recited is
1-In a machine for bending, flanging and shaping metal, actuating the shaping
roller or block, or rollers or blocks both vertically and horizontally by fluid
pressure applied substantially in the manner and by means hereinabove described
and illustrated in the drawings.
2 In a machine for bending, flanging and shaping metal, the use of a block
stake or table constructed in parts adjustable in relation to each other by screws or
their equivalent substantially as described with reference to and shewn in the
drawings.
. 3.-The combination of parts constituting the improved machine for bending
shaping and flanging metal, constructed arranged and operating as hereinabove
described and shewn in the drawings.
In Witness whereof I, the said Charles Scriven have hereunto set my hand?
and Seal this Tenth day of February in the year of our Lord One
thousand eight hundred and eighty three.
Witness to the signature of the
said Charles Scriven
THO E CRAVEN C.E. Fel. Inst. Patent Agents
24 Victoria Chambers
South Parade
Leeds.
CHAB SCRIVEN (L&)