Improvements in Windows.
Year: 1899

page_text: Date of Application, 25th May, 1899
Complete Specification Left, 28th Dec., 1899-Accepted, 3rd Feb., 1900
I, PERCY RICHARD JULIUS WILLIS, of Fairfield, Kingston-on-Thames, in the
County of Surrey, Consulting Engineer, do hereby declare the nature of this in-
vention (a communication to me from abroad by Frank J. Lowery, and Frank E.
Billings, both of Fort Fairfield, Maine, U.S.A., Inventors) to be as follows:
This invention relates more particularly to windows and window sashes which
are raised and lowered by means of a spring-operated gear-wheel meshing with
a rack on one side of a sash; the object of this invention being to provide simple
and efficacous means for ensuring the even movement of the sash; the sash being
liable to "stick" or impinge when lifted from one side only. The mechanism
of this invention may, however, be applied to any window sash to ensure its
easy and even movement.
By this invention the sash-guides are slotted longitudinally and midway their
width, and strips of metal secured to the outer faces of the side portions of the
guide on each side of the slot. A flat projecting spring is secured to the top bar
of the sash and extends through the slot, to the outer side of the sash guide,
where it is formed with loops in which a roller or rollers are journalled to travel
vertically upon the metal strips. The rollers serve to keep the upper part of the
sash close to its guide and prevent it from impinging on the opposite side.
When the fastening and raising means, before referred to. is not employed it
is preferable to fit both sides of the sash and window frame with the spring-roller
device.
P. R. J. WILLIS.
Improvements in Windows.
I, PERCY RICHARD JULIUS WILLIS, of Fairfield, Kingston-on-Thames, in the
County of Surrey, Consulting Engineer, do hereby declare the nature of this
invention (a communication to me from abroad by Frank J. Lowery, and
Frank E. Billings, both of Fort Fairfield, Maine, U.S.A., Inventors) and in
what manner the same is to be performed, to be particularly described and as-
certained in and by the following statement ;-
This invention relates more particularly to windows and window sashes which
are raised and lowered by means of a spring-operated gear-wheel meshing with
a rack on one side of a sash, the object of this invention being to provide simple
and efficacious means for ensuring the even movement of the sash, the sash being

page_text: liable to stick or impinge when lifted from one side only. The mechanism
of this invention, may, however, be applied to any window sash to ensure its
easy and even movement.
Reference being had to the drawings hereunto annexed:
Figure is a longitudinal section through the window casing fitted with my
improvement. Fig. 2 is an end elevation thereof. Fig. 3 is a detail view.
By this invention the inner wall of the sash guide A is slotted longitudinally
at B and strips of metal Care secured to the outer faces of the sides of the guide
on cach side of the slot. A flat projecting spring or bracket is secured to the
top bar of the sash at one or both ends thereof, and extends through the slot into
a recess E on the outer side of the sash guide at which point it is fitted with
collars or rollers F adapted to travel vertically upon the metal strips.
It will be understood that when the sash is raised by the toothed pinion G
meshing with the rack H that the sash will have a tendency to rise on one side
and impinge on the other. To do this however the upper corner of the sash
nearest to the raising device must move away from its guide or guides. The
roller or rollers F however and the spring or bracket D keep the sash close to
its guide at that point and ensure its travelling in its guides in a true vertical
plane.
When it is desired to remove a sash, it is raised until the rollers are opposite
to the opening I above the guides or ways and then removed by drawing the
rollers through said opening.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is;-
The hereindescribed improvements in windows consisting in forming one or
both window frames with a longitudinal recess on their outer sides, a slot extend-
ing through the inner wall of the casing into the recess to form ways, an opening
through the inner wall aforesaid above the ways, a spring or bracket attached to
one or both ends of the upper bar of a window sash and adapted to project through
the slot into the recess, a roller or rollers rotatably mounted at the extremity of
the spring or bracket and adapted to travel upon said ways, all substantially as
described and for the purpose hereinbefore set forth and lustrated in the draw-
ings hereunto annexed.
Dotal CAL 1
1004