Improvements relating to Sliding Window-sashes.
Year: 1890

page_text: Date of Application, 31st July, 1890
Complete Specification Left, 10th Oct., 1890-Accepted, 29th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements relating to Sliding Window-sashes.
1. ROBERT BREALEY of New Tothill Street, Westminster in the County of
Middlesex, Builder and Decorator do hereby declare the nature of this invention to be
as follows:-
The object of this invention is to provide a sliding sash with means whereby it
may be automatically held at any height in the frame and not be shaken down by
vibration so that it is especially suitable for the windows of railway carriage doors
and the like. "
I provide one of the side pieces of the sash with an eccentrically journalled
toothed wheel gearing with a rack made with or attached to a plate and located
in a recess in the edge of the side piece of the sash so that the outer face of the
said plate being parallel with the edge of the sash is by its movement in an
upward direction thrust laterally outward by the action of the eccentric wheel
gearing with the rack thereunder, and lies in contact with the inside of the frame
of the window in which the sash slides, holding the sash by friction against the
window frame, being firmly pressed against the said window frame by the action
of the eccentric wheel.
To the upper end of the plate is connected a rod extending upward for engage-
ment with a lever pivoted in the upper horizontal rail of the sash and extending
towards the centre of the latter where it is provided with a finger piece for use
in lifting the lever to loosen the window and for thereafter raising or lowering the
same. This lever is connected to the rod so that the latter is free to move upward
within its connection with the lever a spring being arranged to lift said rod as
far as it may be allowed to rise, the lever grasps the rod only when it is raised
to press the rod downwards to loosen the sash for moving it. A method of
attaching the lever to the rod to fulfil these requirements is to encircle the rod
with a bracelet pivoted to the lever the latter having a tongue lying against the
rod so that the downward movement of the end of the lever causes the latter to
grasp the rod between the tongue and the bracelet aforesaid.
A spring holds up the bracelet and with it the end of the lever so that the opposite
end of the latter carrying the finger piece is pressed downwards.
Dated this 31st day of July 1890
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements relating to Sliding Window-sashes.
I ROBERT BREALEY of New Tothill Street Westminster in the County of
Middlesex Builder and Decorator 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:-
The object of this invention is to provide a sliding sash with means whereby it
may be automatically held at any height in the frame and not be shaken down by
vibration so that it is especially suitable for the windows of railway carriage doors
and the like.
I provide one of the side pieces of the sash with an eccentrically journalled toothed
wheel gearing with a rack made with or attached to a plate and located in a

page_text: recess in the edge of the side piece of the sash so that the outer face of the
said plate being parallel with the edge of the sash is by its movement in an upward
direction thrust laterally outward by the action of the eccentric wheel gearing with
the rack thereunder, and lies in contact with the inside of the frame of the window in
which the sash slides, holding the sash by friction against the window frame being
firmly pressed against the said window, frame by the action, of the eccentric wheel.
To the upper end of the plate is connected a rod extending upward for engagement
with a lever pivoted in the upper horizontal rail of the sash and extending towards
the centre of the latter where it is provided with a finger piece for use in lifting the
lever to loosen the window and for thereafter raising or lowering the same. This
lever is connected to the rod so that the latter is free to move upward within its
connection with the lever, a spring being arranged to lift said rod as far as it may
be allowed to rise; the lever grasps the rod only when it is raised to press the rod
downwards to loosen the sash for moving it. A method of attaching the lever to
the rod to fulfil these requirements is to encircle the rod with a bracelet pivoted to
the lever, the latter having a tongue lying against the rod so that the downward
movement of the end of the lever causes the latter to grasp the rod between the tongue
and the bracelet aforesaid.
A spring holds up the bracelet and with it the end of the lever so that the opposite
end of the latter carrying the finger piece is pressed downwards.
The accompanying drawings illustrate the method of performing this invention
Fig. 1 being a front elevation of a window sash and frame. fitted with the improve-
ments Fig. 2 being a section on a larger scale showing the mechanism from the back
or outer side. Fig. 3 is a side elevation of the sash on the scale of Fig. 2.
A is the sash, B the window frame. The latter is cut away or slotted out at C to
receive the parts. In the base of the slot C is fastened the frame D in which is
journaled the eccentric toothed wheel E. F is the rack gearing therewith and
G the plate fastened to the rack. His a pin screwed in the plate G and the con-
tinuation of the rack, and passing through an eye in the rod J which extends upward
through the eye K and is screw threaded at its upper end to receive the nut L. M is
a spring lying between the nut L and eye K and tensioned by said nut. to draw the
rod J and with it the plate G upward so far until the latter being thrown outward by
the wheel E is stopped by the window frame. N is the lever pivoted at O and
extending towards the centre of the upper rail of the sash where it is connected to the
finger piece P. The nose Q of the lever lies against the rod J and the bracelet R
surrounds the rod and is pivoted to the lever N at S. The spring T lifts the bracelet R.
U is a plate to which the lever N is pivoted said plate having the slot V for passage of
the finger piece P.
The manner of action is before described; as the face of the plate. G wears or that
of the window frame the spring M lifts the rod J and with it the plate G so that the
latter is always in contact with the face of the window frame and is jammed against
the latter by the action of the wheel E.
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 sliding window sash and frame of an eccentric pinion E
and rack F with friction plate G with spring for raising said plate into contact with
the window, frame-whereby it becomes jammed against said frame substantially in the
manner set forth.
2. The combination with a sliding window sash and frame of a plate G adapted to
be jammed against said frame, a spring for raising said plate, a rod, J and a lever N
with finger piece adapted to be operated by hand to engage with said rod to depress
the same, but normally to allow free upward passage to said rod substantially as
set forth.
3. In.combination with a sliding sash and window frame the mechanism; comprising

page_text: the eccentric pinion E rack F with plate G, rod J, spring M lever N with finger
piece P nose Q, bracelet R and spring T the whole substantially as and for the purpose
set forth.
Dated this 10th day of October 1890
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.