Improved Means for Supporting Sliding Windows, Shutters, and Blinds at any Height to which they may be Set.
Year: 1899

page_text: Date of Application, 19th June, 1899
Complete Specification Left, 4th July, 1899-Accepted, 5th Aug., 1899
PROVISIONAL SPECIFICATION.
Improved Means for Supporting Sliding Windows, Shutters, and
Blinds at any Height to which they may be Set.
I, HUGO BEYER, of 3, Honor Oak Park, London, S.E., Professor of Singing,
do hereby declare the nature of this invention to be as follows:-
My invention has for its object to obtain just the amount of friction necessary
to support a sliding sash, shutter, or blind in its grooves, and yet admit of its
being easily overcome when it is required to raise or lower the sash.
The invention is especially applicable to railway and other carriage window
sashes but it may also be applied to ordinary window sashes, sliding shutters, or
blinds.
The invention consists essentially in the employment of short lengths of india
rubber tubing as the means of obtaining the requisite friction, and for the pur-
pose of supporting the sash at any height to which it may be raised and pre-
vent it from descending by jarring, a toothed rack is affixed to one or to each
side of the sash and is geared with a pinion mounted in the run of the sash
groove, the pinion being formed of a toothed ring turning upon a bearing con-
structed to act as a sort of brake as hereafter described whereby the requisite
friction is obtained. This bearing consists of a stationary boss chambered at its
periphery to receive elastic rings formed of short lengths of rubber tubing which
project slightly from the periphery of the boss into rubbing contact with the
interior of the pinion against which they press by their inherent clasticity so as
to produce just the requisite amount of friction and deadness of motion to ensure
the support of the sash. The sash is also provided with elastic shoes at the top
and bottom corners formed of the same material affixed transversely to the edges
of the sash and applied to rub against the bottom of the sash grooves so as to
guide the sash and prevent rattling or jarring of the sash in its grooves.
A. M. & WM. CLARK,
Chartered Patent Agents,
53, Chancery Lane, London.
Improved Means for Supporting Sliding Windows, Shutters, and
Blinds at any Height to which they may be Set.
I, HUGO BEYER, of 3, Honor Oak Park, London, S.E., Professor of Singing,.
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:-

page_text: to support a sliding sash, shutter, or blind in its grooves and yet admit of such
friction being easily overcome when it is required to raise or lower the sash.
The invention is especially applicable to railway and other carriage window
sashes but it may also be applied to ordinary window sashes, sliding shutters, or
blinds.
The invention is illustrated in the accompanying drawings forming part of this
specification, as applied to a railway carriage window sash from which its applica-
tion to other analogous uses will be readily understood. In these drawings
Figure 1 represents a part inside face view of a railway carriage door partly in
section through the stile of the door frame to shew the device of my invention
mounted therein. Figure 2 is a horizontal section on line 2-2 Figure 1; and
Figure 3 is an inside face view of the groove in which the sash runs. Figures 4
and 5 are perspective views of details. The same letters of reference denote like
parts in all the figures.
A is the sash of the window and B is one of the stiles of the door in the groove
of which the sash runs. For the purpose of supporting the sash A at any height
to which it may be raised and prevent it from descending by jarring, a toothed
rack D extending the whole height of the sash, is affixed to one, or preferably to
each, side of the sash A and is geared with an annular pinion E mounted in the
stile B so as to project through the bottom or run and engage by its teeth with
the teeth of the rack D, the pinion E being formed of a toothed ring turning
upon a bearing constructed to act as a sort of brake as hereafter described whereby
the requisite friction is obtained. This bearing consists of a stationary boss F
(shewn separately in perspective in Figure 4) of relatively large diameter com-
pared with the pinion, said boss having dovetailed chambers around its periphery
as at f. Figure 4, to receive short lengths of rubber tubing Ġ (or equivalent
material) which extend longitudinally of the boss F and are so compressed or
confined in the chambers as to project slightly from the periphery of the boss
into rubbing contact with the interior circumference of the pinion E against
which they press by their inherent elasticity so as to produce just the requisite
amount of friction to resist the downward motion of the sash under its own weight
whereby the support of the sash at any height to which it may be raised is ensured,
the friction being however easily overcome by a manual effort applied to the sash
in the upward or downward direction, when it is desired to raise or lower the sash.
The boss F may be of metal and is fixed on a square pin f' whose ends are re-
ceived in corresponding holes h (Figure 5) in the cheek plates of a metal box H
(shewn separately in perspective in Figure 5) let into a mortise cut in the stile B.
The outer surface of the rubber cushions G may be fluted longitudinally for
the purpose of increasing their adhesive power, which may be further reinforced
by means of a core driven tightly into the bore of the rubber tubing. This core
may be formed for example by a plug of wood or other material such as hard
indiarubber or it might consist of a length of helical spring. The cushions G
may also be made solid, and instead of being cylindrical may be rectangular or
otherwise shaped in section provided always that such cushions are adapted to
be held within and to project slightly from dovetailed chambers in the boss F.
In order to prevent rattling or jarring of the sash in its grooves, it may be
provided with elastic shoes I of indiarubber fixed to the edges of the sash beyond
the ends of the rack and applied to bear and rub with elastic pressure against
the bottom or run of the sash groove C as shewn.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
The herein described means of supporting sliding sashes and the like, consisting
in the combination with rack and pinion gear applied as described, of a stationary
bearing for the pinion adapted to act as a brake and consisting of a boss of
relatively large diameter chambered to receive brake shoes formed of indiarubber

page_text: or equivalent material adapted to project by their own elasticity from the periphery
of the boss into frictional contact with the annular pinion, substantially as
specified.
1
T 1
1000
A. M. &. WM. CLARK,
Chartered PatentAgents, 53, Chancery Lane, London.