IMPROVEMENTS IN BARS for HOLDING AND SECURING GLASS FOR WINDOWS AND ROOF-LIGHTS, AND Applicable for OTHER analogous PURPOSES
Year: 1881

page_text: LETTERS PATENT to Charles Hill Pennycook, of Glasgow, in the County of
Lanark, North Britain, for an Invention of "IMPROVEMENTS IN BARS for
HOLDING AND SECURING GLASS FOR WINDOWS AND ROOF-LIGHTS, AND
Applicable for OTHER analogous PURPOSES.”
PROVISIONAL SPECIFICATION left by the said Charles Hill Pennycook at
the Office of the Commissioners of Patents on the 13th June 1881.
CHARLES HILL PENNYCOOK, of Glasgow, in the County of Lanark, North
Britain. "IMPROVEMENTS IN BARS FOR HOLDING AND SECURING GLASS FOR
WINDOWS AND ROOF LIGHTS, AND APPLICABLE FOR OTHER ANALOGOUS PURPOSES."
This Invention relates to bars of the kind described in the Specification of
Letters Patent obtained by the present applicant, and dated 14 May 1879
(No. 1930), and to various modifications of and improvements on such bars. The
said bars are intended for holding and securing glass for windows and the like,
and are applicable for other analogous purposes, such as for securing transparent or
opaque plates or sheets of other material than glass for roofing.
A bar as made according to the present Invention is a combination of three
elements, namely, an inner coro or bar for imparting strength, a shell giving
external form to the bar, and a finishing part for closing down upon and securing
the glass when placed in position.
The inner core is a plain bar of a flat form, but set vertically when in use, or it
may be of an inverted T section; it may be of wrought iron, or steel, or copper, or
bronze, or brass, or solid zinc, or wood.
The shell is made of sheet metal, and in any of the forms given in the earlier
Specification herein before referred to, or in any analogous form, but so as to
enclose the inner solid bar as a strengthening core. The metal employed for the
shell may be zinc, copper, brass, iron, or steel.
When iron or steel is employed for either the inner strengthening bar or for
the shell it may be galvanised or otherwise coated to render it less liable to
oxidation.
The finishing part consists by preference of sheet lead, but it may also be of
copper, or brass, or tinned iron, or steel, being however in all cases of such a
thinness to be sufficiently flexible for folding down upon the glass. This finishing
part is held in the folds of the shell part in the manner described in the earlier
Specification herein before referred to.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charles Hill Pennycook in the Great Seal Patent Office on the
12th December 1881.
CHARLES HILL PENNYCOOK, of Glasgow, in the County of Lanark, North
Britain. "IMPROVEMENTS IN BARS FOR HOLDING AND SECURING GLASS FOR
WINDOWS AND ROOF LIGHTS, AND APPLICABLE FOR OTHER ANALOGOUS PURPOSES."
My said Invention relates to bars of the kind described in the Specification
of Letters Patent granted to mo, and dated 14 May 1879 (No. 1930), and comprises
various modifications of and improvements on such bars. The said bars aro
intended for holding and securing glass for windows and the like, and are applicable
for other analogous purposes, such as for securing transparent or opaque plates or
sheets of other material than glass for roofing.
A bar as made according to my present Invention is a combination of three
elements, namely, an inner core or bar for imparting strength, a shell giving
external form to the bar, and a finishing part for closing down upon and securing
the glass when placed in position.
The inner core is a plain bar of a flat form, but set vertically or on edge when
in use, or it may be of an inverted T-section; it may be of wrought iron, or steel,
or copper, or bronze, or brass, or solid zinc, or wood.
The shell is made of sheet metal, and in any of the forms given in my earlier
Specification hereinbefore referred to, or in any analogous form, but so as to enclose
the inner solid bar as a strengthening core. The metal employed for the shell may
be zinc, copper, brass, iron, or steel.
When iron or steel is employed for either the inner strengthening bar or for
the shell it may be galvanised or otherwise coated to render it less liable to
oxidation.
The finishing part consists by preference of sheet lead, but it may also be of
copper, or brass, or tinned iron, or steel, being however in all cases of such a
thinness as to be sufficiently flexible for folding down upon the glass. This
finishing part is held in the folds of the shell part in the manner described in my
earlier Specification hereinbefore referred to.
And in order that my said Invention and the manner of performing the same may
be properly understood, I hereunto append a sheet of explanatory Drawings to be
hereinafter referred to, and representing examples of my improved glazing bars.
Figures 1 to 5 on the accompanying Sheet of Drawings are transverse sections
of various modifications of glazing bars, and Figures 6 to 9 show the mode of
applying the same in the construction of a roof light. In these Drawings the same
reference numerals are used to mark the same or like parts wherever they are
repeated.
In the modification shown in Figure 1 the inner core 10 is a plain metal bar of
a flat form, and the shell consists of two pieces 11, 12, of thin metal of a sufficiently
rigid character. The finishing part is in two pieces 13 of lead or other sufficiently
flexible metal, and has one edge held by a folded-over part of one 12 of the shell
pieces, whilst the other edge stands up, as shown in Figuro 1, until the glass
pieces 14 are placed in position, after which it is folded down, as shown in the other
Figures.
In the modification shown in Figure 2 the core 10 is of an inverted T-section;
in Figures 3 and 4 the core 10 is the same as in Figure 1, but the lower shell
piece 12 is differently shaped; in Figure 5 the core 10 is of wood, and the shell
pieces 11, 12, are shaped to suit the larger dimensions required for a given strength
when wood is used.

page_text: In Figure 7 a portion of a roof light is shown in plan or faco view, whilst
Figures 6 and 8 are end views showing the lower and upper fixing details
respectively; Figure 9 is a vertical section. Each glazing bar (when of the form
shown in Figure 1 or 2) has at its lower end its bottom members or flanges entered
into a holder 15, the shape of which will be understood from Figures 6, 7, and 9.
This holder 15 is by preference made of galvanised iron, and is fixed by screws to
the wooden purlin or framing 16 at the lower end of the roof light. The upper
end of the glazing bar is secured by a somewhat different holder 17, the shape of
which will be understood from Figures 7, 8, and 9. This holder 17 can be moved
along the glazing bar, which is convenient when fixing the bars, and it may be
used as at 18 when the roof light is of such a size as to make an intermediate
support desirable. The holders at 17 and 18 are fixed by screws to the wooden
purlins or frame pieces 19. The holders are modified in form to suit the various
forms of my improved glazing bar.
Having thus particularly described my said Invention and the manner of
performing the same, I have to state that I do not restrict myself to the precise
details herein described or delineated, but that what I believe to be novel and
original and claim as the Invention secured to me by and in terms of the herein-
before in part recited Letters Patent is,-
The combination in a bar for glazing and analogous purposes of an inner coro for
imparting strength, a shell giving external form, and a finishing part for closing
down upon and securing the plates, sheets, or pieces of glass or other material, the
parts being formed and adapted to each other, substantially in the manner herein-
before described.
In witness wheroof, I, the said Charles Hill Pennycook, have hereunto set
my hand and seal, this Ninth day of December, in the year of our Lord