IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR GLAZING OR FIXING SHEETS OF GLASS, STONE, SLATE, OR METAL
Year: 1878

page_text: LETTERS PATENT to Thomas William Helliwell, of Brighouse, in the County
of York, Architect, for the Invention of "IMPROVEMENTS IN THE METHOD OF
AND APPARATUS FOR GLAZING OR FIXING SHEETS OF GLASS, STONE, SLATE,
OR METAL"
Sealed the 6th August 1878, and dated the 10th April 1878.
PROVISIONAL SPECIFICATION left by the said Thomas William Helliwell
at the Office of the Commissioners of Patents on the 10th April 1878.
THOMAS WILLIAM HELLIWELL, of Brighouse, in the County of York, Architect.
"IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR GLAZING OR FIXING
SHEETS OF GLASS, STONE, SLATE, OR METAL,"
The object of this Invention is to construct or erect roofs or sides of greenhouses,
conservatories, or any other description of roof or building without the use of putty,
and also to prevent the exposure of woodwork, and consequently the necessity of
painting, the Invention being equally applicable to "slating" or fixing sheets of
stone, slate, or metal for the roofs of buildings generally.
The uew and peculiar arrangement of the sheets of glass, stone, slate, or metal
is shewn in perspective in Figs. 1, 2, and 3 of the accompanying Drawings, A being
the sheets which rest upon ribs or bars B. These bars may be arranged oither
upright, horizontal, perpendicular, or diagonal.
The sheets A are prevented from slipping either downwards or sideways by the
clip, bracket, or lug C.
In the arrangement of sheets shewn in Fig. 1, an opening or space is left between
each sheet, over which I place a strip or narrow piece of glass, stone, slate, or metal
D, held or secured thereon by the clip, bracket, or lug C, but instead of having a
separate clip for holding or securing both the sheet A and slip D, I may use a metal
slip turned or bent, as shewn at E in Fig. 4.
To prevent a sheet from slipping or tilting sideways in case one of the clips C
breaks off or becomes loose, a small projection F is provided on the clip Ĉ in

page_text: Fig. 5. This projection F is arranged to catch the top corner of a sheet, so that
should one of the clips break or get loose, the sheet is prevented from tilting side-
ways by being held at the top corner.
When stone, slate, or metal is used, they may be fastened or secured to the bars B
by means of nails, screws, or clips.
By this system of glazing, two or more thicknesses of glass, stone, slate, or metal
may be used if required.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas Willian Helliwell in the Great Seal Patent Office on the
10th October 1878.
THOMAS WILLIAM HELLIWELL, of Brighouse, in the County of York, Architect.
"IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR GLAZING OR FIXING
SHEETS OF GLASS, STONE, SLATE, OR METAL."
The object of this Invention is to construct or crect roofs or sides of greenhouses,
conservatories, or any other description of roof or building without the use of putty,
and also to prevent the exposure of woodwork and consequently the necessity of
painting, the Invention being equally applicable to slating or fixing sheets of stone,
slate, or metal, and for the roofs of buildings generally.
This I accomplish by a new and peculiar arrangement of the sheets of glass,
stone, slate, or metal, and by suitably shaped clips or brackets.
In order that my Invention may be more fully understood, I herein give reference
to the accompanying Sheet of Drawings illustrative thereof.
In Fig. 1 the sheets of glass A rest upon the ribs or bars B, and are prevented
from slipping downwards by means of the ledge a in the clip or bracket C, which is
secured to the bar B. This bracket is shewn in detail in Fig. 5.
The sheets of glass or other material do not overlap at the sides, but are placed
a short distance apart, so that the projecting part or tail of the clip b can pass
between them, the opening between the sheets being covered by a narrow strip D,
the lower end of which strip is secured or held in position by clip c, whilst the
upper end is secured by passing underneath the clip next above it.
Instead of the form of clip shewn in Fig. 5, 1 may combine the clip c and the
strip D by constructing them as shewn at E in Fig. 4, the ends being looked and
supporting each other.
In Fig. 2 I have illustrated another arrangement of the sheets or other material,
and also the method in which I secure them when the edges thereof overlap. The
ribs B in this case are perpendicular to the ridge of the roof, but it is immaterial
whether they are perpendicular, horizontal, or diagonal, and this applies equally to
all the examples herein given.
The clip or bracket F, shewn in detail in Fig. 6, is secured to the rib B, as shewn ;
the part marked c serves to support the bottom or overlapping edges of the sorics

page_text: of sheets A, the top or underlapping edges of the same series being prevented by
the side portion of the clip marked & from slipping sideways. The series of sheets
marked A' rest with their bottom edges upon the upper and outer part of the clip
marked e.
Fig. 7 is a modified form of this clip for the opposite side of square.
In Fig. 3 I have shewn a different arrangement of the sheets A and the employ-
ment of a form of clip for supporting the bottom edges of both the overlapping and
underlapping sheets and the top or underlapping corners of the sheets which enters
the box corners of the clip marked f, shewn in detail in Fig. 10. This projection or
box corner is so arranged as to catch the top corner of a sheet, shewn at H, so as
to prevent the sheet tilting sideways or dropping out.
Figs. 8 and 9 are modified forms of clip for this arrangement of sheets without
the box corner.
Having now described my Invention and shewn by Drawings how the same may
be carried into practical effect, I would have it understood that I do not claim the
use of clips for supporting sheets of glass, stone, slate, or metal, as clips and brackets
of various forms have been previously used, but what I consider to be new, and
therefor claim as my Invention is,-
-
Firstly. The combination and arrangement of the sheets A, shewn in Fig. 1, with
the clips or brackets c of the form shewn in Fig. 5, substantially as herein shewn
and described.
Secondly. The use and employment of strips of metal or other material, as and
for the purpose shewn and described in Fig. 4.
Thirdly. The arrangement of the sheets A and A¹, as shewn in Fig. 2, with the
form of clip shewn and described in reference to Figs. 2, 6, and 7, for supporting
and fixing the sheets.
Fourthly. The arrangements of the sheets A, as shewn in Fig. 3, with the
form of clip shewn in Fig. 10, and applied as shewn in Fig. 3, substantially as
herein shewn and described.
In witness whereof, I, the said Thomas William Helliwell, have hereunto set
my hand and seal, this Eighth day of October, in the year of our Lord
One thousand eight hundred and seventy-eight.
ATTA
Signed, sealed, and delivered
by the within-named Thomas
William Helliwell, in the
presence of
A. B. CROSSLEY.
THO. W. HELLIWELL.
(L.S.)