IMPROVEMENTS IN AND APPLICABLE TO APPARATUS FOR SHAPING PLATES AND SHEETS OF METAL."
Year: 1881

page_text: LETTERS PATENT to Thomas Turton, of Liverpool, in the County of Lancaster,
Iron and Steel Manufacturer, and Robert Roberts, of the same City, Foreman
Smith and Ship Builder, for an Invention of "IMPROVEMENTS IN AND
APPLICABLE TO APPARATUS FOR SHAPING PLATES AND SHEETS OF METAL."
PROVISIONAL SPECIFICATION left by the said Thomas Turton and Robert
Roberts at the Office of the Commissioners of Patents on the 22nd January
1881.
THOMAS TURTON, of Liverpool, in the County of Lancaster, Iron and Steel
Manufacturer, and ROBERT ROBERTS, of the same City, Foreman Smith and Ship
Builder. "IMPROVEMENTS IN AND APPLICABLE TO APPARATUS FOR SHAPING
PLATES AND SHEETS OF METAL."
The said Invention relates to apparatus for giving a dished or hollow shape to
plates or sheets of metal for use in ship building, boiler making, and other purposes.
The object is to provide apparatus whereby the plates or sheets of metal shall be
made to assume the desired form with greater rapidity and precision than has
hitherto been the case.
For that purpose, we, under the first part of our Invention, combine with suitable
carrying frames three rolls formed and arranged in the following novel manner :-
Two concave shaped rolls are carried in bearings in the frames placed in the same
or nearly the same horizontal plane, and a convex roller is placed over and above
the centre line between the two concave rollers.
Under the second part, the top concave roller is carried in bearings adjustable
vertically by means of screws, excentrics, or the like.
Under the third part, gearing of any suitable or well known kind, or an
engine is employed to give motion to the said rollers,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Turton and Robert Roberts in the Great Seal Patent Office.
the 22nd July 1881.
THOMAS TURTON, of Liverpool, in the County of Lancaster, Iron and Steel
Manufacturer, and ROBERT ROBERTS, of the same City, Foreman Smith and Ship
Builder. " IMPROVEMENTS IN AND APPLICABLE TO APPARATUS FOR SHAPING
PLATES AND SHEETS OF METAL."
The said Invention relates to apparatus for giving a dished or hollow shape tó.
plates or sheets of metal for use in ship building, boiler making, and other purposes.
The object is to provide apparatus whereby the plates or sheets of metal shall be
made to assume the desired form with greater rapidity and precision than has
hitherto been the case.
For that purpose, we, under the first part of our Invention, combine with suitable
carrying frames three rolls formed and arranged in the following novel manner :-
Two concave shaped rolls are carried in bearings in the frames placed in the same 1
or nearly the same horizontal plane, and a convex roller is placed over and above
the centre line between the two concave rollers...
"Under the second part, the top concave roller is carried in bearings adjustable
· vertically by means of screws, excentrics, or the like.
Under the third part, gearing of any suitable or well known kind, or an 2
_ engine is employed to give motion to the said rollers.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is an end view, and Fig. 2 a side elevation of apparatus constructed in
accordance with our Invention for shaping and bending metals; a, a¹, carrying
frames; b, b¹, concave shaping rolls carried on the shafts c, c¹, by bearings d, d², in 2
the frames a, a¹; e, e¹, spur wheels secured to the shafts c, c³; f, f¹, pinions gearing
with the spur wheels e, e¹, and secured to the shaft g carried in bearings on the
frames a, a. To one end of the shaft g a large spur wheel is secured. The said
spur wheel receives motion from a pinion driven by any suitable power; h, convex
shaping roll carried on the shaft i supported by sliding bearings ; in the frames a, a¹; 3
k, k¹, screws for raising and lowering the bearings j in the slots l, l'.
Fig 3 is an end view, and Fig 4 a side elevation of a modification of apparatus
specially adapted for bending sheets of metal for pipes, in which the top roll h is
driven, and in which the lower rolls b, b¹, are adjustable. The roll ĥ is made
concave, and the rolls b, b', convex; m, driving gear. The above apparatus will
curve the metal in the reverse direction to that described under Figs. 1 and 2.
For pipe making there are two or more sets of convex and concave rolls, so
that either convex or concave may be placed at the top with concave or convex
at the bottom. By this means the metal may be bent so as to form U shaped and
like pipes.
In all the views the same letters denote like parts.
The apparatus described in Figs. 1 to 4 is suitable for bending, shaping, and
dishing plates and sheets of metal for ship building and boiler and pipe making.
The apparatus may also be used for bending bars, angle iron, and like pieces.
Plates for ships or vessels can be shaped by the apparatus above described in less
than one fourth the time occupied by the ordinary process of hammering, and the
work is more highly finished and a better fit.
Having now described and illustrated the nature of the said Invention in such
manner that others will be enabled to carry our improvements into effect, we
claim,―
First. Apparatus constructed and operating substantially in the manner and for
the purposes setforth.

page_text: Second. Concave and convex rollers arranged and operating substantially,,
setforth.
Third. In bending apparatus constructed under the first part adjustable rollers;
substantially as setforth under the second part.
Fourth. In combination with plate bending apparatus constructed in accordance
with the first part driving gear or its equivalent, substantially as setforth under
the third part.
*In witness whereof, I, the said Thomas Turton, have hereunto set my hand
and seal, this Twentieth day of July, in the year of our Lord One thousand
eight hundred and eighty one.
J: JOHNSON,
4, Clayton Sq., Witness.
L'pool.
THOMAS TURTON. (L.S.)