A New or Improved Method of Fastening Curved and Straight Corrugated Sheets for Roofing and other purposes.
Year: 1898

page_text: A New or Improved Method of Fastening Curved and Straight
Corrugated Sheets for Roofing and other purposes.
I, JOIN BIGLANDS PEARSON, of 5, Maxwell Road, Rathgar, in the County of
Dublin, Ireland, Manufacturers' Agent, do hereby declare the nature of this
invention to be as follows:
1
This invention has reference to a new or improved method of securing or
fastening curved and straight corrugated sheets whereby the necessity of punch-
ing holes in the sheets, together with the use of rivets and bolts is dispensed
with, and the durability of the material thus augmented..
In carrying out my invention I may use corrugated sheets of any length,
width, or gauge now in use, and may be either curved or straight.
In addition to these sheets specially prepared conugated strips with three
corrugations only, are provided which are arranged between each tier of ordinary
sheets, the side corrugations overlapping one or two of the corrugations of the
adjacent ordinary sheets.
Both the specially prepared strips and the ordinary sheets rest on the rooi
purlins and the wall plates which may be of iron, steel, wood or other suitable
material.
Over the specially prepared strips and ordinary sheets thus laid, and at right
angles to the corrugations, are fixed light iron straps-preferably of angle iron.
These straps are jointed over the middle of the specially prepared strips and
are held in position by means of a bolt and clip, or bolt and nut, or by a hook
bolt embracing the flange of the purlin and through the joint in the strap.
No longitudinal nor vertical rivets or bolts are thus used in the sheets.
.
Dated this 15th day of February 1898.
A New or Improved Method of Fastening Curved and Straight
Corrugated Sheets for Roofing and other purposes.
;
I, JOHN BIGLANDS PEARSON, of 5, Maxwell Road, Rathgar, in the County of
Dublin, Ireland, Manufacturers' Agent, do hereby declare the nature of this

page_text: 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 has reference to a new or improved method of securing or
fastening curved and straight corrugated sheets whereby the necessity of punch-
ing holes in the sheets, together with the use of rivets and bolts is dispensed
with, and the durability of the material thus augmented.
In carrying out my invention I may use corrugated sheets of any length,
width, or guage and the same may be either curved or, straight.
In addition to these sheets-which for convenience I term ordinary" sheets
-specially prepared corrugated strips with three corrugations only, are provided
which are arranged between each tier of ordinary sheets, the side corrugations
(of the strips) overlapping one or two of the corrugations of the adjacent
ordinary sheets.
Both the specially prepared strips and the ordinary sheets rest on the roof
purlins, wall plates, or bearers which may be of iron, steel, wood or other suit-
able material,
Over the specially prepared strips and ordinary sheets thus laid, and at right
angles to the corrugations, are fixed light galvanized iron straps-preferably of
angle iron. These straps are jointed over the middle of the specially prepared
strips, and are held in position by means of a bolt and clip, or bolt and nut,
or by a hook-bolt, embracing the flange of the purlin and passing through the
flange of the strap.
No longitudinal or vertical rows of rivets or bolts are thus used in the sheets.
In order that my said invention may be more readily understood and carried
into practice, I attach hereunto the accompanying sheet of drawings in which,
Fig. 1 is a sectional view of a galvanized iron roof at right angles to its pitch
illustrating my improved method of securing the corrugated sheets.
Fig. 2 is an enlarged view of same at right angles to Fig. 1.
Fig. 3 is a plan view of the galvanized angle iron strap shewing method of
joining the ends of same, and,
Fig. 4 shews a modification of my invention as hereinafter more fully described.
Similar letters indicate corresponding parts in each of the views;-
:—
A represents an ordinary iron purlin, B the ordinary corrugated sheet which
as already stated may be of any width or guage, and which rests on the purlin
in the reversed position to that in which it is usually laid-i.e., the longitudinal
edges turned upwards instead of downwards.
C is the specially prepared strip which is placed so as to overlap the edges
of the adjacent ordinary sheets as shewn; D is the galvanized angle iron strap
which runs along over the strips and ordinary sheets, its ends being bolted
together by an overlap joint D¹.
In this joint I prefer to use screws with cone shaped nuts as shewn, which
are less affected by the weather than the ordinary bolts and nuts.
E and E¹ (Fig. 2) are the clips which embrace the flanges of the purlin, the
former being provided with a bolt eye, and the latter with a pierced lug through
both of which as also through the jointed flanges of the angle iron, and special
strips passes the bolt F.
On this bolt is screwed the nut F1 by means of which the special strip and
ordinary sheets are securely braced together and permanently held in position.
The clip E may or may not be used, it assists in preventing any tendency to
slip with the pitch of the roof.
In a modification of my invention I may dispense with the clips E and E¹
and substitute a simple hook-bolt H (Fig. 4) the shank of which passes up direct
through the angle iron strap and is secured by a nut which may also be of the
cone shaped pattern.
When the corrugated sheets are fixed on timber purlins, or wall plates, 5

page_text: galvanized cone-headed, or square headed screws may be used in the same manner
as the above described clips and bolts.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
-
First In galvanized iron roofs, the method of securing the corrugated sheets
by means of specially prepared longitudinal strips, in combination with an
angle iron strap placed over said specially prepared strips and corrugated sheets,
and bolted to a clip or clips embracing the roof purlin whereby the necessity
of rows of bolts or rivets is obviated, as well as the durability of the roof pro-
longed, in the manner substantially as herein specified and illustrated in
Figs. 1, 2 and 3 of the accompanying drawings.
Second: In galvanized iron roofs, the method of securing the corrugated sheets
by means of specially prepared longitudinal strips in combination with an angle
iron strap placed over said specially prepared strips and corrugated sheets and
held firmly in position by a hook-bolt embracing the purlin in the manner
substantially as specified and illustrated in Fig. 4 of the accompanying drawings.
Dated this 27th day of October 1898.
J. K. FAHIE & SON,
Agents for Applicant, 9, Westland Row, Dublin.
J. K. FAHIE & SON,
Agents for Applicant, 9, Westland Row, Dublin.