Improvements in Framing or Stretchers for Corrugated Iron or Steel Sheeting and Roofing.
Year: 1893

page_text: Date of Application, 2nd Mar., 1893
Complete Specification Left, 20th Mar., 1893-Accepted, 8th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Framing or Stretchers for Corrugated Iron or
Steel Sheeting and Roofing.
WILLIAM THOMPSON Engineer Custom House Quay Wexford do hereby declare
the nature of my invention for IMPROVEMENTS IN FRAMING OR STRETCHERS
FOR CORRUGATED IRON OR STEEL SHEETING AND ROOFING to be as follows:-
The making of stretchers or framing to which corrugated sheeting or roofing is
to be affixed, of coupled bars of L or T section steel or iron (placed in pairs &
parallel,) having an open space or slit between their inner edges, such slit or space
being wide enough to allow the bolts or rivets with which the corrugated sheeting
is fastened to pass through and be secured on back.
The Lor Thars may be coupled or fastened together in pairs in any convenient
way or instead of coupled L or T section bars of iron or steel-single bars of
U section or channel section iron or steel may be used, such U section or channel
section bars being rolled and having long slits or slots in the centre of the web-
of such length and with such short connecting tongues or pieces between the
slots that for all practical purposes of convenience in getting in bolts or rivets as
aforesaid the said single bars of U or channel section-may at less price-be as
useful as the coupled bars of L or T section steel or iron.
Dated this 28th day of February 1893.
WILLIAM THOMPSON.
COMPLETE SPECIFICATION.
Improvements in Framing or Stretchers for Corrugated Iron or
Steel Sheeting and Roofing.
WILLIAM THOMPSON Engineer Custom House Quay Wexford. I do hereby
declare the nature of my invention for IMPROVEMENTS IN FRAMING OR
STRETCHERS FOR CORRUGATED IRON OR STEEL SHEETING OR ROOFING
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
The making of stretchers or framing to which corrugated sheeting or roofing
is to be affixed, of coupled bars of L or T section steel or iron-said bars being
being placed parallel & having an open space or slit between their inner edges
such slit or space being wide enough to allow the bolts or rivets with which the
sheeting is fastened to pass through at almost any point and be secured at the
back.
The Lor T section bars may be coupled or fastened together in any convenient
way so as to leave a slit or space between the edges of the flanges. Also a single
bar of section may be coupled to a single bar of T section and used in same
way as two bars of either section. Or instead of the coupled L or T section bars
of iron or steel a single bar of U or channel section iron or steel may be used
such U or channel section bar being rolled in one piece with prolonged slits or slots
in the centre of the web & having short connecting pieces or tongues between the.
said slots to maintain the unity of the bar. The object being to avoid the trouble
and expense of coupling two bars and to make one slotted bar of U or channel
section do the work of the two coupled bars of L or T section steel or iron.
65
Fig. 1" of accompanying drawing shews "in section" a stretcher of 2 bars of
angle section coupled viz. :-
a represents the corrugated iron sheeting.

page_text: d washer under nut of the bolt c.
e ferrule for spacing the bars.
frivet or bolt for coupling same.
Fig. 2 is a perspective view of a stretcher of coupled bars showing the con-
tinuous slit or space between at any part of which a bolt can be inserted.
hh are the coupling bolts or rivets.
Fig. 3 represents a bar of U or channel section with long slits or slots (k) in
centre of web and connecting pieces between (m) which maintain the unity of
the bar.
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 I make
no claim for the use of channel or U section bars for the aforesaid purpose in
which the slits or slots are punched or cut after the bar has been rolled or
manufactured, nor do I make any claim for the use of LTU or channel section
bars of iron or steel either singly or combined other than as herein described and
for the purposes stated in the title of the Specification; but I claim
1. Stretchers or framing for affixing corrugated iron or steel sheeting to-such
stretchers being of L section or T section bars of iron or steel coupled together
with an open space or slit between their inner edges-said space or slit being for
the purpose of allowing the bolts or rivets with which the sheeting is fastened
to pass through at almost any point and be secured on the back.
2. Single bars of U or channel section iron or steel having prolonged slits or
slots in the web of the bars between which slots narrow tongues or connecting
pieces connect the two sides of the bars & maintain their unity, the bolts or rivets
for securing the corrugated sheeting passing through the said slots in the channel
bar in like manner as they do between the coupled bars of L or T section steel or
iron as before described.
Dated this 17th day of March 1902