Improvements in Sheet Metal Roofing.
Year: 1893

page_text: Date of Application, 9th Feb., 1893
Complete Specification Left. 27th Oct.. 1893-Accepted; 2nd Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Sheet Metal Roofing.
I, CHARLES THOMERSON of 263 Hackney Road in the County of London,
Plumber, do hereby declare the nature of this invention to be as follows:-
This invention relates to further improvements in that kind of sheet metal roofing
for which Letters Patent were granted to me dated 17th February 1890 No. 2536,
that is to say, in sheet metal roofing in which each sheet of roofing or guttering has
the corner pieces of the half stop ends formed integral with each said sheet.
In carrying my present invention into practice I bend down the front edge of
each sheet of roofing or guttering either at an angle or in the form of a beaded or
welted edge and I then bend up at an angle the side or sides of the sheet so that a
corner piece is or corner pieces are produced inclining or curved from the front of
the sheet whereby the fold described in the Specification of the said Letters Patent
is dispensed with.
Instead of bending the front and side or sides in the order described I may first
bend the said side or sides and afterwards the front edge of each plate.
Dated this 8th dev of February 1893
CHAS. THOMERSON.
COMPLETE SPECIFICATION.
Improvements in Sheet Metal Roofing.
1, CHARLES THOMERSON of 263 Hackney Road in the County of London,
Plumber, 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 further improvements in that kind of sheet-metal roofing
for which Letters Patent were granted to me dated February 17th 1890 No. 2536,
that is to say, in sheet metal roofing in which each sheet of roofing or guttering
has the corner pieces of the half stop ends formed integral with each said sheet.
In carrying my present invention into practice I bend down the front edge of
each sheet of roofing or guttering either at an angle or in the form of a beaded or
welted edge, and I then bend up at an angle the side edge or side edges of the
sheet so that a corner piece is or corner pieces are produced without distressing the
metal by stretching or hammering, the said corner piece or pieces being inclined or
curved from the front of the sheet. By this construction the fold described in the
Specification of the said Letters Patent is dispensed with. Instead of bending
the front and side edge or side edges in the order described I may first bend the
said side edge or side edges and afterwards the front edge of each plate.
In order that my invention may be clearly understood, reference is had to the
annexed drawing, in which,
Figure 1 is a perspective view of a portion of a sheet of metal roofing or
guttering with a corner piece of a half stop end formed according to my invention,
and
Figure 2 is a perspective view illustrating a step or stage in the formation of the
said corner piece.
a is the sheet of metal roofing or guttering and b is the front edge thereof which
I bend down at an angle or into the form of a beaded (or welted) edge as shewn in
Figure 2. c is one of the side edges of the said sheet a which edge I then bend up
at an angle as shewn in Figure 1 so as to form the corner piece d which corner
piece is inclined or curved from the front of the sheet a.
017

page_text: Although I have described the front edge of the sheet a as being bent down
before the side edge or side edges are bent up, the formation of the corner pieces is
effected equally as well by reversing the order of the said operations.
my said
Having now particularly described and ascertained the nature of
invention and in what manner the same is to be performed, I declare that what I
claim is,
1. Forming the corner pieces of the half stop ends of sheet metal roofing or
guttering by bending the front and side edge or edges substantially in the manner
hereinbefore described.
2. The improved sheet of metal roofing or guttering hereinbefore described and i
illustrated in the accompanying drawing.
Dated this 26th day of October 1893.
CHAS. THOMERSON.