Improvements in or connected with the Rolling of Metal Plates and Cylinders of Varying Thicknesses and of Various Forms.
Year: 1893

page_text: Date of Application, 16th Mar., 1893
Complete Specification, Left,. 13th Dec., 1893-Accepted; 17th Feb., 1894
יוי
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Rolling of Metal Plates and
Cylinders of Varying Thicknesses and of Various Forms.
F
I, GEORGE SINCLAIR, of Albion Boiler Works, Leith, in the County of
Mid Lothian, North Britain, Boiler Maker, do hereby declare the nature of this
invention to be as follows, that is to say
My said invention. has for its object the forming of metal plates and cylinders in
an improved manner, and so as to be advantageously applicable for making parts of
steam boilers and other structures.
In order to form a plate with one edge or border thickened and suitable for
making a strong flanged end piece for the shell of a boiler furnace, I have the plate
rolled of double the required width with the middle part of the desired increased
thickness as compared with other parts, and I subsequently divide the plate along
the middle of the thickened part. The rolls employed are shaped to give the
desired section or varying thickness to the plate. The thickened part may be
tapering, or it may be of uniform increased thickness for a suitable breadth. The
double-width plate may be rolled with a thickened part at or near the middle for
one plate only and so that when the double-width plate is divided one portion will
be of uniform thickness.
The described, modes of forming the plates are designed to avoid the difficulty of
rolling a plate with only one edge or border thickened. A plute may, however,
according to another modification, be rolled with both edges or borders thickened
and one thickened edge or border be subsequently cut off.
By a further improvement when the plate is for forming a flanged piece of a
furnace shell or similar piece, it may be rolled with one or both edges or borders
thickened as herein before described, and at the same time have the edges or borders
wholly or partially bended or flanged by the rolls, the rolls being suitably shaped
for that purpose.
Also instead of forming a flat plate with one or both edges or borders thickened
and flanged, a cylindrical plate may be similarly shaped or completed with one or
both edges or borders thickened, and with or without being flanged. Such
cylindrical plate may either be formed out of a flat plate bended and welded,
or it may be formed by a succession. of graduated rolling operations out of a
thick tubular. block made out of a solid block by forming a hole through it or
otherwise.
Dated this Fifteenth day of March 1893.
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in or connected with the Rolling of Metal Plates and
Cylinders of Varying Thicknesses and of Various Forms.
1, GEORGE SINCLAIR, of Albion Boiler Works, Leith, in the County of
Mid Lothian, North Britain,- Boiler Maker, 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, that is to say :-
My said invention has for its object the forming of metal plates and cylindera in
D077

page_text: an improved manner, and so as to be advantageously applicable for making parts of
steam boilers and other structures.
I show on an accompanying sheet of explanatory drawings six sections of plates
as made with my improvements.
སཾ སཱུ པོཙཱ ཎ)
As shown in Figure, 1, in order to form a plate, A, with one edge or border
thickened and suitable for making a strong flanged end piece for the shell of a
boiler furnace, I have the plate rolled of double the required width with the middle
part, B, of the desired increased thickness as compared with other parts, and 1
subsequently divide the plate along the middle of the thickened part as indicated
by the dotted line, C. The rolls employed are shaped to give the desired section
or varying thickness to the plate, A, The thickened part, B, is tapered; or, as
shown in Figure, 2, it is of uniform increased thickness for a suitable breadth. As
shown in Figure, 3, the double-width plate, A, may be rolled with a thickened
part, B. at or near the middle of one plate, A, only and so that when the double-
width plate is divided at, C, one portion will be of uniform thickness.
The described modes of forming the plates, A, are designed to avoid the difficulty
of rolling a plate with only one edge or border thickened. As shown in Figure, 4,
however a plate, A, is rolled with both edges or borders, B, thickened and one
thickened edge or border is subsequently cut off at, C.
By a further improvement shown in Figure, 5, when the plate, A, is for forming
a flanged piece of a furnace shell or similar piece, it is rolled with one or both
edges or borders, thickened as hereinbefore described, and at the same time the
edges or borders are wholly or partially bended or flanged by the rolls, the rolls
being suitable shaped for that purpose.
Also instead of forming a flat plate (A) with one or both edges or horders
thickened and flanged, a cylindrical plate, D, Figure, 6, may be similarly shaped
or completed with one or both edges or borders thickened, and with or without
being flanged. Such cylindrical plate, D, may either be formed out of a flat plate
bended and welded, or it may be formed by a succession of graduated rolling
operations out of a thick tubular block made out of a solid black by forming a hole
through it or otherwise.
.
!.
Having now particularly described and ascertained the nature of my said inven
tion and in what manner the same is to be performed I declare that what I
claim is:
i
In or connected with the rolling of metal plates and cylinders the making of
them of varying thicknesses and of various forms substantially in the manner
hereinbefore described.,
! an
Dated this Twelfth day of December 1893.
EDMUND HUNT,
Applicant's Agent.