Improvements in the Means for Raising and Supporting Sashes, Shutters, and the like.
Year: 1889

page_text: Date of Application, 13th Sept., 1889
Complete Specification Left, 13th June, 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in the Means for Raising and Supporting Sashes,
Shutters, and the like.
I, THOMAS WIDDOWSON 340, London Road, Sheffield in the County of York,
Manufacturer, do hereby declare the nature of my invention to be as follows
--
This invention is for a simple means or mechanism for raising and supporting
window sashes, shutters and the like, at different heights, being well adapted to the
raising of railway door sashes.
In putting the invention into practice, I use two long coiled springs of small
diameter, and of suitable strength.
I fasten one end of such coiled spring to the top of the window frame, at or near
the termination of the sash groove, and I pass the other end down through a vertical
groove in the edge of the sash, and secure it at the bottom of the sash; and when in
this position its action should be to support the sash in its closed position. One of
the said springs is fixed to each side or edge of the sash, and if the sash was there-
fore to be pushed down by hand, it would be raised again by the action of the two
springs to the top of the window frame.
To enable the sash to be retained at any height in the window frame, I attach to
the sash frame, a rack of any suitable construction, such as a plate having a series of
holes or notches, and in the window-frame I fix a catch arranged to engage with the
notches or holes of the rack, by means of a spring which forces the catch into the
holes as they come opposite to it.
When the catch is withdrawn, the window or sash, or shutter as the case may
be, rises until the catch engages with the next notch, or until it rises to
the top.
ROBT. F. DRURY, Fel. Inst. P.A.,
Bank Buildings, George Street, Sheffield, Agent for the Applicant.

page_text: The short springs B, are for raising the top sash, and the long springs for raising
the lower sash, and preferably I secure each spring by its upper end to the top of
the window or sash frame C, and its lower end to the sash D or E.
an attachment F which consists of a screwed plug which engages with the coils of the
I prefer to use
spring, and is provided with an eye to pass on to a hook G, but this is not
material, although the result is better than when the end of the spring is formied
into a hook.
The springs pass down vertical grooves J in the edges of the sashes, and are
attached to the side of the sash in a manner similar to that before described.
As the springs are not required to do more than balance the weight of their
respective sashes and in order that the sashes may be sustained and retained at any
desired height or position, I use a retaining spring H, which may be placed in almost
any position on the edge of the sash, see Fig. 4-and is such as commonly used
for analagous purposes.
The springs for the top sash are elongated when the sash is drawn down, and
exert their power to close it again; the springs A are down out when the bottom
sash is closed, and exert their power to elevate the said sash.
In some cases I may in connection with my system of hanging sashes as described,
use a rack or notched plate fixed to the side of the sash-frame C, and have a spring
catch to engage with the rack, fixed to the sash.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
or
1-The improved means for assisting in raising and sustaining the sashes
glass frames of windows or doors, consisting of an arrangement of coiled springs,
substantially as hereinbefore described and illustrated.
2-In hanging the sashes of windows or doors the combination of coiled springs
for raising and retaining springs for supporting the sashes constructed and arranged
substantially as herein before described and illustrated.
Dated the
day of Inno 1800
ROBT. F. DRURY, Fel. Inst. P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.