An Improved Brake for, Window Sashes and the like.
Year: 1895

page_text: Date of Application, 9th Apr., 1895 ·
Complete Specification Left,-8th Jan., 1896 Accepted, 15th Feb., 1896,
PROVISIONAL SPECIFICATION.
An Improved Brake for, Window Sashes and the like.
I, RICHARD HILL of 28 Montrave Road Penge, S.E. Watchmaker, do hereby
declare the nature of this invention to be as follows:
The object of this invention, is to provide, a brake, for window. sashes and other
similar sliding, objects, which shall be simple in construction and in action and
enable such, a window sash, or the like, and particularly, a carriage window sash, to
be, held, by the frictional contact of the brake, surfaces, or equivalent means of
engagement thereof, with the window frame, or other frame, at any position to
which said sash may be, raised, or, lowered, the said brake being automatically
operated by the lift or handle, placed on, the window sash or the like for the purpose
of its adjustment. :
11
This brake comprises suitable, brake shoes or blocks or equivalent means of,
engagement connected together, by a rod or the like extending across the sash
preferably within the material of the latter, in a, suitable cavity so that the two
shoes or block lie one, at each side of the sash or engage. with the surface of, the
groove in the window frame when the rod is straight or, nearly so. Springs, may
be fitted to straighten said rod.or to press outward the brake blocks, that is; to say.
apart from each other., The, handle or, lift, is preferably. a laterally. extended
pivoted lever having its pivot fixed with it and carrying a double cam or tappet..
This device is so placed in relation to the rod or the like aforesaid that when the
lever is raised or depressed as would be, the natural action or result of an attempt.
to raise or lower the sash the one or other of said tappets presses against the
rod or the like and causes it to temporarily assume a curve which has the effect of
shortening the distance between its ends that is to say causes the brake blocks, to
be drawn together, thus enabling the sash to move, until release of the lift or handle
automatically permits the return of the brake blocks to their original position.
Dated this 9th day of April 1895.
HERBERT HADDAN & Co.,
Agents to Applicant,
An Improved Brake for Window Sashes and the like.
I. RICHARD HILL formerly of 28, Montrave, Road, Penge, S.E. and now of
9, Hunter Street, Brunswick Square, W.C. London, Watchmaker, do hereby declare
the nature of this invention and in what manner, the saine is to be performed, to be
particularly described and ascertained in and by the following statement:-
The object of this invention is to provide a brake for window sashes and other
similar sliding objects,, which shall be simple in..construction and in action and
enable such a window-sash or the like, and particularly.a carriage window, sash, to,
be held by the, frictional contact of the brake surfaces, or equivalent means of
engagement. thereof, with the window frame or other frame at any position..to

page_text: which said, sash may be raised or lowered, the said brake being automatically
operated by the lift or handle placed on the window sash or the like for the purpose
of its movement and adjustment..
This brake comprises suitable brake shoes or blocks or equivalent means of
engagement connected together by a rod or the like extending across the sash
preferably within the material of the latter in a suitable cavity so that the two
shoes or blocks lie one at each side of the sash and engage with the surface of the
groove in the window frame when the rod is straight or nearly so. Springs may
be fitted to straighten said rod or to press outward the brake blocks that is to say
apart from each other.
The handle or lift is preferably a laterally extended pivoted lever having
its pivot fixed with it and carrying a double cam or tappet. This device
is so placed in relation to the rod or the like aforesaid that when the lever is
raised or depressed as would be the natural action or result of an attempt
to raise or lower the sash by means of said lever the one or other of said tappets
presses against the rod or the like and causes it to temporarily assume a curve
which has the effect of shortening the distance between its ends that is to say
causes the brake blocks to be drawn together, thus enabling the sash to move,
until release of the lift or handle automatically permits the straightening of the
rod and the return of the brake blocks to their original position.
1
This invention is illustrated in the annexed sheet of drawings which illustrates
a sash and frame partly broken away to show the construction.
A is the sash, 6 the frame, c the grooves in the frame in which the sash slides,
d is the lever connected to pin e carrying the double tappet ff, g is an eye made
in the outer end of the lever d, h is the resilient rod adapted to slide loosely in the
sockets. One end of the outer rod' h carries fixed to it the brake block k, the
other end is screw threaded and the brake block is screwed upon it. This
construction permits of adjustment of the distance between the outer faces of
blocks k k¹ in case the width of the sash may vary slightly.
The construction of these parts is such that a downward pull on the lever d lifts
tappet which bends the rod h upward in or about the centre, thus drawing its
ends slightly inwards until the brake blocks k k leave the inner surfaces of the
grooves ce when the downward pressure will cause the sash to descend.
On releasing the lever d the resiliency of the rod will thrust the blocks k k¹
apart. To lift the sash the lever d is listed thus causing the tappet f to deflect the
rod hand draw inwards the brake blocks. The continued upward pressure on the
lever d will then raise the sash until the lever is released when the resiliency of
the rod will, as aforesaid bring the brake blocks again into action to secure the
sash in the position it then occupies.
If desired the interior of the groove cc may have ratchet teeth as shown in dotted
lines at on the left of the drawing and the brake blocks may have a similar shape
to engage therewith. At the upper and lower ends of the grooves in the frame
there may be recesses m to receive the brake blocks at their highest and lowest
positions respectively.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination with a window sash or sliding object and a frame therefor
of a resilient bar such as h across said sash or object and brake blocks at ends of
said bar together with suitable means for deflecting said bar in order to withdraw
the brake blocks from their operative contact with the frame.
2. The combination with the sash or sliding object and frame therefor of a
resilient bar such as h, brake blocks at the ends thereof, lever d and double
tappet ff substantially as and for the purpose set forth.
3. The combination with a sash or sliding object and frame therefor of two brake
blocks on opposite sides of the sash or sliding object and connected together across

page_text: the same and means for deflecting the connections of said brake blocks thus causing
them to be drawn together for the purpose set forth.
4. The improved brake for window sashes and the like constructed substantially
as herein described and illustrated.
Dated this 8th day of January 1896.
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.