Improvements in and in the Manufacture of Metallic Plates, suitable for Flooring, Gutters, and the like.
Year: 1894

page_text: Date of Application, 19th May, 1894-Accepted, 30th June, 1894
Improvements in and in the Manufacture of Metallic Plates, suitable
for Flooring, Gutters, and the like.
I, JOSEPH STRICKLAND of 32 Wharfe View, Ben Rhydding near Leeds, in the
County of York, Engineer, 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 certain improvements in the construction of metallic
plates suitable for sustaining roadways, which are also applicable for other purposes,
and has for its object, the production of such in a manner that they are formed of
plates of unequal thickness, so that when the plates are bent to the shape required
for the purpose they have to fulfil, such thickened portion will be in the flange or
flanges where most strength is required.
Hitherto plates for the same purpose have been made of equal thickness through
out, and strengthening strips have been added to the flanges thereof, which
necessitates the punching or drilling of a large number of holes, thereby reducing
the area of such plates, and necessitating an extra amount of rivetting.
In order that my invention may be fully understood, I will describe the same in
detail by making reference to the accompanying sheet of drawings in which
i
Fig. represents a cross section through a portion of flooring formed out of my
improved plates.
Fig. 2 is a similar view showing same in a corrugated form.
Fig. 3 is a modification showing another form of flooring constructed with my
improved plate.
Figs. 4 and 5 shew sections of columns constructed with my improved plates.
Figs. 6, 7 and 8 shew sections of gutters formed with my improved plates.
Fig. 9 is a cross section of a plate before being bent, suitable for forming
flooring as illustrated in Fig. 3.
Fig. 10 is a similar view of a plate suitable for forming flooring as illustrated by
Figs. 1 and 2.
Fig. 11 shews a section of my improved plate, suitable for forming columns or the
like, as illustrated by Figs. 4 and 5.
Figs. 12 and 13 are views of plates suitable for forming gutters as illustrated by
Figs. 6, 7 and 8 and
Fig. 14 represents a pair of rolls suitable for rolling plates as shewn at Fig. 9,
and when bent employed for forming flooring such as illustrated by Fig. 3.
In all the figures similar letters indicate similar parts where they appear.
The plates are indicated by the letter A. and in making them, are passed between
rolls B. B. having a suitable number of grooves C. C. in each roll for forming the
necessary number of thickened portions A¹ in each plate A. as may be required to
suit the purpose for which the plates are to be used.
Although in Fig. 14 I shew one groove in the top roll B. and two in bottom roll,
I do not limit myself to one groove, more may be used if required, either in the top
or bottom rolls, or one roll may be without grooves, made plain and of uniform
diameter to produce on one side of the plate a plain, smooth and uniform surface
without projections while the grooves or groove may be in the other roll. The
thickened parts of the plates may be placed on both sides of the plate if required as
shown at Fig. 9 or on one side as shown on Fig. 13.
The rolls B. B. are operated in the usual manner and after a plate has been
passed between the said rolls a sufficient number of times to reduce same to the
required thickness, the edges may be sheared in the ordinary manner, and on

page_text: heating the plate it is then pressed by hydraulic or other means to the section
required.
The plates after being rolled and bent to the section required, may be rivetted
together in the ordinary manner as shown by the various figures in the drawings, or
in any other convenient manner, as may be required to suit the purpose for which
the plates are to be used.
In Fig. 14 the rolls B. B. are shown with one groove C. in the top roll and two
in the bottom roll, each turned out of the solid roll. I can accomplish my object
with equally good results by securing a sleeve on an ordinary roller in any con-
venient manner, and turning the required number of grooves in said sleeve when the
roll is ready for use.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is,
1. Plates of unequal thickness bent into such sections as when put together form
suitable supports for flooring, columns, troughs and the like, with the strong or
thickened parts in position for sustaining the major portion of the strain.
2. The construction of plates of unequal thickness having a thin portion of plate
on one or both sides of a thick place as shewn by Figs. 9. 10 and 13 for the
purpose of facilitating bending, economising material, and connecting the plates
together.
.
3. The rolling of metal plates into unequal thickness of such sections as to be
suitable for forming flooring supports, columns, troughs or gutters, substantially in
the manner as hereinbefore set forth.
Dated this 18th day of May 1894.
JOHN WAUGH,
Agent.