Means for Raising, Lowering, and Securing Window-sashes.
Year: 1894

page_text: Date of Application, 20th Aug., 1894
Complete Specification Left, 19th June, 1895-Accepted, 27th July, 1895
PROVISIONAL SPECIFICATION.
Means for Raising, Lowering, and Securing Window-sashes.
We, WALKER GEORGE DE FORGÉS GARLAND, of Palace Road, East
Moulsey, in the County of Surrey, Timber Merchant, and WILLIAM SHEARS,
of Scotland Bridge, Byfleet, in the same county, Builder, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improved means for raising, lowering and securing
window-sashes; the cords and the balance-weights usually employed, as also the
ordinary fastenings for the meeting rails, being dispensed with.
By the present invention, each sash is raised and lowered with the aid of two
screws arranged vertically and concealed in the window-frame. These screws
rotate in suitable bearings. An arm formed with an internal thread and engaging
with one of the screws projects from each side of each sash. To the lower end of
each screw is attached a bevel-pinion; the two bevel-pinions carried by the two
screws pertaining to the upper sash being coupled by gearing so as to cause these
two screws to rotate simultaneously, whilst the two bevel-pinions carried by the
two screws pertaining to the lower sash are coupled together in a similar manner.
For coupling each pair of screws, a connecting rod concealed in the window-sill
and having a bevel-pinion at each end is employed. A short cross-shaft furnished
with a crank-handle engages by means of a bevel-pinion with the train of gearing
pertaining to one pair of vertical screws; a similar cross-shaft being also provided
for the gearing pertaining to the other pair of vertical screws.
By turning the one or the other crank-handle, the connecting rod to which
it is geared and the pair of vertical screws coupled by that rod are rotated;
the result being that the corresponding sash is raised or lowered as the case
may be.
Each sash is firmly held by the arms engaging with the vertical screws, so that
rattling of the window in rough weather is avoided; and, as the sashes can only
be raised or lowered by turning the crank-handles, which are worked from the
interior of the room, the window is practically burglar-proof.
COMPLETE SPECIFICATION.
Means for Raising, Lowering, and Securing Window-sashes.
We, WALKER GEORGE DE FORGES GARLAND, of Palace Road, East
Moulsey, in the County of Surrey, Timber Merchant, and WILLIAM SHEARS,
of Scotland Bridge, Byfleet, in the same county, Builder, 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 relates to improved means for raising, lowering and securing

page_text: window-sashes; the cords and the balance-weights usually employed, as also the
ordinary fastenings for the meeting rails, being dispensed with.
In the accompanying drawings,
Fig. 1 is a view, taken from the inside of the apartment, showing a pair of
window-sashes furnished with our improvements.
Fig. 2 is a longitudinal section taken on the line 2-2, Fig. 3 a longitudinal
section taken on the line 3-3, and Fig. 4 a transverse section on the line 4-4,
Fig. 1.
Fig. 5 is a view of the under side, showing the ineans for operating the raising
and lowering screws.
Fig. 6 represents in transverse section a modified construction in which the sashes
are arranged to open inwards.
In a window constructed according to the present invention and furnished with
a pair of sliding sashes, each sash A A¹ is raised and lowered with the aid of
two vertically arranged screws B B, B¹ B', concealed in the window-frame C.
These screws rotate in suitable bearings. On each side of each sash project
arms D D, D' D₁, each arm being formed with an internal thread with which its
respective screw B or B¹ engages. The said arms pass through and move longi-
tudinally in slots or openings E E¹ made in the window-frame C. To the lower
end of each screw B B¹ is attached a bevel-pinion bb, bb; the two bevel-
pinions ¹¹ carried by the two screws B¹ B' pertaining to the upper sash A' being
coupled so as to cause the screws B' B¹ to rotate simultaneously, whilst the two
bevel-pinions 66 carried by the screws B B pertaining to the lower sash A are
coupled together in a similar manner. For coupling each pair of screws B B, B'B',
a connecting rod a, a' concealed in the window-sill and having a bevel-pinion cc, c¹ cl
at each end is employed. A short cross-shaft d' furnished with a crank-handle e¹
engages by means of a bevel-pinion d³ with the train of gearing pertaining to the
pair of vertical screws B¹ B'; a similar cross-shaft d, crank handle e and bevel
pinion d being provided for the gearing pertaining to the vertical screws B B.
The crank-handles e e¹ may be detachable.
By turning the one or the other of the crank-handles e e¹, the connecting rod a a'
to which it is geared and the pair of vertical screws B B or B' B¹ coupled by that
rod are rotated; the result being that the corresponding sash is raised or lowered
as the case may be.
The arms DD' are preferably made as shown; the part ƒ ƒ¹ entering a socket g, g¹
secured to each side of the sash A or A¹
Each sash is thus firmly held by the arms D D engaging with the vertical
screws B B¹, so that rattling of the window in rough weather is avoided; and, as
the sashes A A' can only be raised or lowered by turning the crank-handles e e',
which are worked from the interior of the room, the window is practically burglar-
proof.
According to the modification illustrated in Fig. 6, each sash A A' may be
hinged to fillets F, F; the arms D, D' being carried by the said fillets. The
fillets and the shutting stiles may be retained in position by any suitable means,
such as catches or thumb-screws, so that on releasing the catches the window may
be opened inwards. Access is thus permitted for cleaning or repairing, without
resorting to the dangerous practice of sitting or standing upon the window-sill.
This arrangement may be employed with windows having sashes fitted in cased
frames, or with casement windows having solid frames.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we claim :→
1. The improved means for raising, lowering or securing, window-sashes, arranged
or operating substantially as described with reference to the accompanying
drawings.
2. For raising, lowering or securing, window-sashes, the employment, for each
sash, of a pair of screws, arranged vertically, coupled together and provided with

page_text: means whereby they may be rotated in unison; each screw working through a nut
formed in or attached to an arm which projects laterally from the sash, substantially
as herein described.
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