Improvements in the Construction or Manufacture of Sash Bars for Domes, Skylights, Windows, and for analogous Uses.
Year: 1899

page_text: Date of Application, 10th Mar., 1899
Complete Specification Left, 11th Dec., 1899-Accepted, 13th Jan., 1900
Improvements in the Construction or Manufacture of Sash Bars for
Domes, Skylights, Windows, and for analogous Uses.
We, ALDAM HEATON & COMPANY LIMITED and JOHN CROFT-SMITH, Managing
Director, both of 21 and 23, Bloomsbury Street, Bedford Square, London, W.C..
do hereby declare the nature of our said invention to be as follows:-
The object of our invention is to construct or manufacture sash bars for domes,
skylights, windows, and for analogous uses. in a new or improved manner,
whereby the necessary strength is obtained combined with lightness and general
efficiency.
According to our invention we form the bars of metal and wood, the metal
portion to provide the necessary strength and the wood portion for improved
appearance.
In one form we make use of metal rolled to a T section, the horizontal bar of
the T being attached to the wood by screws or the like and preferably sunk flush
with the surface of the wood. In another form we groove the wood portion
longitudinally and centrally and fit therein a strip of metal in this case the
metal strip is held in position by a suitable number of tongued plates, screwed
to the wood, the tongues of which pass through holes or slots formed in the metal
strip.
Other forms or sections of metal may be employed according to requirements
and other methods of screwing the metal to the wood may be used.
13
1
1000
GEORGE DOWNING & SONS.
8, Quality Court, London, W.C., Agents for Applicants.
Improvements in the Construction or Manufacture of Sash Bars for
Domes, Skylights, Windows, and for analogous Uses.
We, ALDAM HEATON & COMPANY, LIMITED, and JOHN CROFT-SMITH, Managing
Director of 21 and 23, Bloomsbury Street, Bedford Square, London, W.C., do
hereby declare the nature of our said invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the follow-
ing statement:-
The object of our invention is to construct or manufacture sash bars for domes,
skylights, windows, and for analogous uses, in a new or improved manner;

page_text: whereby the necessary strength is obtained combined with lightness and general
efficiency.
According to our invention we form the bars of metal and wood, the metal
portion to provide the necessary strength and the wood portion for improved
appearance.
And in order that our said invention may be particularly described and ascer
tained, reference is hereby made to the accompanying drawings in which similar
letters of reference indicate corresponding parts.
Fig. 1 illustrates the combination of T metal to a sash bar.
Fig. 2 is a modification,
Fig. 3 illustrates the application of U section metal.
Figs. 4, 5 and 6 illustrate the application of a strip or web of metal.
a is the wood and is the metal portion of the sash bar.
As shown in Fig. 1, a T section metal bar is attached to the wood portion by
screws, the metal being sunk flush with the surface of the wood; also an additional
web (shown by dotted lines) may sometimes be formed on the metal bar thus
forming a section. Fig. 2, is a modification of Fig. 1, the metal being formed
of a trough section with a central web, as shown; this form is suitable where
extra strength is required.
Fig. 3, illustrates the application of a trough or U section metal bar to the
wood portion of a large sash bar or sash frame; the trough may be fitted with
a bead c (shown by dotted lines) or equivalent means for improving the appear-
ance.
Figs. 4, 5 and 6 illustrate the use of a web or strip of metal fitted in a central
longitudinal groove in the wooden sash bar. In Fig. 4, the web is shown secured
in position by screws which pass through holes formed in the web, and in Figs. 5
and 6. the web is shown secured by a number of tongued plates d. The web is
drilled with holes at a suitable distance apart and the tongues or studs of the
plates are inserted therein before such plates are secured to the wooden bar
by screws or the like.
Other forms or sections of metal may be employed according to requirements
and other methods of securing the metal to the wood may be used.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. In sash bars for domes, skylights, windows, and the like, the combination
with the wooden sash bar of a metal web (in place of the wooden web), said web
being attached to the wooden portion in any suitable manner, substantially as
and for the purposes described.
2. In sash bars, the several particular constructions, and arrangements of metal
and wood to form sash bars or frames, substantially as hereinbefore described
and illustrated by the drawings.
111 D
1000
ALDAM HEATON & COMPANY LIMITED.
JOHN CROFT-SMITH.
By George Downing & Sons,
Chartered Patent Agents, 8, Quality Court, London, W.C.