Improvements in Means for Supporting Railway and other Sash Windows.
Year: 1896

page_text: Date of Application, 4th Apr., 1896
Complete Specification Left, 4th Jan., 1897-Accepted, 13th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in Means for Supporting Railway and other Sash
Windows.
We, EDWARD JACOB HILL of 11, Victoria Street in the City of Westminster,
Civil Engineer, and VINCENT WALKER HILL of the Constitutional Club,
Northumberland Avenue, London, S. W. Gentleman, do hereby declare the nature
of this invention to be as follows:-
This invention consists in improvements in the means of supporting railway
carriage and other window sashes for which former Letters Patent No. 25,131 of 1894
were granted to us and has for its object to cause the sash or louvre to be pressed
against one side of the groove in which it runs and so prevent rattling.
The sash fastener described in the specification of our previous patent consists
of a dog or lever pivoted to a plate or bracket fixed to the sash and engaging with
notches or recesses in the bottom of the sash groove.
According to our present invention the notches or recesses are of wedge shape
both in depth and width that is to say they are broader at the upper or shallower
end than at the lower or deeper end the side of the recess being inclined to the
side of the sash groove so that the projecting end of the lever will easily enter
the upper part of the recess and as the sash descends slightly when released after
being raised the end of the lever comes in contact with the inclined face of the
recess and so causes the sash to be forced by its own weight against the side of the
groove at the same time that the end of the lever butts with a toggle-like action
against the bottom of the notch.
To prevent wear of the inclined sides of the notches they are lined with
metallic bearing blocks which are countersunk in the bottom of the sash groove
and screwed in position.
A spring is applied to act on the lever and throw it into engagement with the
notches in the sash groove.
Dated this 4th day of April 1806
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Means for Supporting Railway and other Sash
Windows.
We, EDWARD JACOB HILL of 11, Victoria Street, in the City of Westminster,
Civil Engineer, and VINCENT WALKER HILL of the Constitutional Club,
Northumberland Avenue, London, S. W. Gentleman, 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 :-
This invention consists in improvements in means of supporting railway carriage
and other window sashes at different heights such as described in former Letters
Patent No. 25,131 of 1894 granted to us and the improvement has for its object
to cause the sash or louvre to be pressed against one side of the groove in which
it runs so that rattling will be prevented.

page_text: The sash fastener described in the specification of our previous patent consists
of a dog or lever pivoted to a plate or bracket fixed to the stile of the sash and
engaging with notches or recesses in the bottom of the groove in which the sash
slides.
The improvement is illustrated in the accompanying drawings, forming part of
this specification, wherein
Figure 1 represents an inside face view of a glazed sash and louvre sash to
which two slightly different forms of the sash supporting device are applied, the
two sashes being fitted in grooves in the same door.
Figure 2 is a horizontal section on line 2-2 of Figure 1; and
Figure 3 is a face view of the sash grooves drawn to a larger scale.
The device shewn in face view in the upper part of Figure 1 and in section on
line 2-2 in the upper part of Figure 2, consists of a metal lever A pivoted at a
to the back of a plate B which is fixed over a shallow recess cut in the inner face
of the sash frame S in which the lever A works, the plate being apertured to
give access to the tail end of the lever which is provided with a thumb knob a¹
acting as a counterweight. The outer end a2 of the lever projects beyond the
edge of the sash in position to enter recesses C formed in the bottom or "run
the sash groove D.
35
of
The device shewn in face view in the lower portion of Figure 1 and in plan in
the lower part of Figure 2 is similar except that the lever A' is cranked and is
pivoted in a bracket B fixed on and projecting from the inner face of the
sash S¹ the cranked end only of the lever working in a notch cut in the sash
and engaging with notches C₁ formed in the bottom or
of the sash
*run
groove D' as before.
وو
In both, these arrangements a spring is applied to act on the lever to throw
it into engagement with the said notches in the sash groove, but the levers A A'
being counterweighted the spring may be dispensed with, if desired.
According to our present invention the notches or recesses C Care of wedge
shape in width, that is to say they are broader at the upper than at the lower end
the side e of the recess being inclined to the side d of the sash groove so that the
projecting end of the lever or dog will easily enter the upper part of the recess
and as the sash descends slightly when released after being raised, the end of
the lever or dog will come in contact with the inclined face e of the recess and
so cause the sash to be forced by its own weight against the side d of the sash
groove at same time that the end of the lever or dog comes against the stop
formed by the bottom of the notch whereby the sash is supported and rattling
prevented.
To prevent wear of the inclined sides of the notches C or C' they are provided
with metallic liners E which are countersunk in the bottom of the sash groove
and secured in position by screws.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The herein described sash supporter, consisting the combination with a spring
or weight actuated lever or dog pivoted to the sash, as described, of one or more
recesses in the bottom or "run" of the sash grooves each recess having a metallic
liner presenting an inclined bearing surface for engagement by the lever or dog so
so as to support the sash and cause it to bind in its grooves substantially as
specified.
Dated this 4th day of January 1897.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.