Improvements in the Method of and Apparatus for Glazing and Roofing Buildings.
Year: 1890

page_text: Date of Application, 12th Feb., 1890
Complete Specification Left, 12th Sept., 1890-Accepted, 15th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Method of and Apparatus for Glazing and
Roofing Buildings.
1, WILLIAM HENRY HEYWOOD, of The Horticultural Works, Colne Road, Hudders-
ield, in the County of York, Horticultural Engineer, do hereby declare the nature of
this invention to be as follows:-
The object of my invention is to fix asbestos packing in suitable channels (so that
the glass bears upon the packing) upon astragal or iron or other metallic bars or
supports.
i
The glazing bar with the channels and cap combined are drawn in one piece and
bent as required, the cap being preferably in a scroll form so as to leave a space
between the outer edge and the inner part hearing on the glass, this space forming an
air chamber and is designed to prevent capillary attraction.
The use of the packing makes a perfect dust tight glazing, the glass resting upon a
soft cushion prevents breakage and rattle by vibration.
The inner channel is available for conveying away any water which may collect
under the cap.
Dated this Eleventh day of February 1890.
JOHN E. WALSH,
Crossley Street, Halifax, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Method of and Apparatus for Glazing and
Roofing Buildings.
I, WILLIAM HENRY HEYWOOD,-of-The Horticultural Building Works, Colne Road,
Huddersfield, in the County of York, Horticultural 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 :-
DESCRIPTION OF DRAWINGS.
Fig. 1. is a sectional elevation of a Tiron or steel bar employed in my system of
glazing.
Fig. 2. is a sectional elevation of glazing bar and cap before it is bent.
Fig. 3. is a sectional elevation of my glazing bar and cap as applied to glass
roofing.
Fig. 4. is a sectional perspective view of my system of glazing.
The object of this invention is to make the glazing of glazed roofs, dust and
waterproof, to prevent breakage and rattle from vibration, contraction and expansion
and to provide a more perfect means of dealing with the condensed water.
These objects I accomplish by taking a T iron or steel bar A, and a leaden glazing
bar B, these I fasten together by bending the two bottom wings D, of the leaden
glazing bar B under the table of the T iron or steel bar A.
I then secure the bar to the purlin or ridge piece at the top by any suitable means,
רנ ...D

page_text: and at the bottom I secure the bar to the purlin or wall plate E, by means of a wrought
or cast iron chair F, and in such manner and at such a distance from the purlin
as to allow the condensed water to run down the bar, without touching the said
purlin or wall plate thus preventing the condensed water from dripping down the face
of the purlin or wall-plate into the interior of the building.
I then take a packing of asbestos or silicate of cotton G or some material
containing a mixture of either asbestos or silicate of cotton or both, and insert it into
the groove H.
Having first (if asbestos be used) prepared the same to resist the action of water
by impregnating it with oil, tallow or some other suitable ingredient.
This packing forms a bed for the vertical edges' of glass J to rest upon, making the
glazing dust tight.
The asbestos and silicate of cotton niay also be used for packing under the cap.
The upper wings K of the leaden bar I use as a cap, these wings have a bead L on
the underside and are pressed down with a suitable tool over the channel until
the centre of the wings K, touch the glass, securing the same and thus creating an
air chamber M, preventing capillary attraction, keeping the water from passing
under the cap.
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. The construction of the glazing bar and cap, such as shown and described.
2. The manner of securing the leaden glazing bar to the Tiron or steel bar such
as shown and described.
3. The method of forming an air chamber by means of bead on the outer or
under edge of the leaden cap, and the bending or dressing of the same as shown and
described.
4. The use and employment of asbestos, silicate of cotton or any other material
containing a mixture of asbestos or silicate of cotton or both in conjunction with my
improved glazing bar in the manner and for the purposes herein described and set:
forth.
Dated this Eleventh day of September 1890.
JOHN E. WALSH,
Crossley Street, Halifax, Agent for the Applicant.