Improvements in Window Fastening Devices.
Year: 1891

page_text: Date of Application, 20th Jan., 1891
Complete Specification Left, 20th Oct., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in Window Fastening Devices.
I JAMES GASCOYNE of 451 Wandsworth Road, Clapham, in the County of
Surrey, Engine Grinder, do hereby declare the nature of this invention to be as
follows:-
This invention for improvements in window fastening devices is applicable for the
windows of houses and carriages, and has for its object, in the case of ordinary
bouse sash windows, to prevent the sashes from being opened from the outside, and
in the case of carriage windows, to enable the sash to be maintained in any
desired position, and consists essentially of a roller running in an inclined race.or
channel in such manner that any movement of the sashes in a direction contrary to
that desired causes the roller to traverse the inclined race until the sash frame is
jammed and all further movement arrested. In one form of device for fastening
single sash frames a bracket containing the inclined race is secured to the sash
style, so that, as the sash is raised the roller in the said race runs against the sash
frame, pulley style, or inside bead and thus effectually jams the sash.
In the case of a double sash the inclined race bracket or-brackets may be secured
to the meeting rail, or to the styles of the lower sash so as to jam against the styles
of the upper sash on the opening movement of either sash. When it is required to
raise the sashes the rollers are disengaged and held in such position by suitable
catches.
In applying my device to railway or other carriage windows the upper rail of the
sash or frame is cut away to admit of the insertion of the inclined race which in
this case forms part of a lever fulcrumed near the the said race which runs in the
window groove. On raising the remote end of the said lever the bottom end of the
race is withdrawn from the window groove, leaving the window free to be raised or
lowered. When however the lever is released its own weight or a counterweight
thereon causes the race to press the roller against the window groove, the downward
movement of the window causing the roller to traverse the race and jam itself
between it and the window groove and thereby retain the window in the desired
position.
Dated this 20th day of January 1891.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Window Fastening Devices.
1.JAMES GASCOYNE of 451 Wandsworth Road, Clapham in the County of
Surrey, Engine Grinder 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 for improvements in window fastening devices is applicable for
the windows of houses and carriages, and has for its object in the case of ordinary
house sash windows, to prevent the sashes from being opened from the outside, and
in the case of carriage windows, to enable the sash to be maintained in any desired
position, and consists essentially of a roller running in an inclined race.or channel
in such manner that any movement of the sashes in a direction contrary to that
desired causes the roller to traverse the inclined race until the sash frame is jammed,
and all further movement arrested.

page_text: In one form of device for fastening single sash frames, a bracket containing the
inclined race is secured to the sash style, so that as the sash is raised the roller in
the said race runs against the sash frame pulley style or inside bead and thus
effectually jams the sash.
In a case of a double sash the inclined race bracket or brackets may be secured
to the meeting rail or to the styles of the lower sash so as to jam against the styles
of the upper sash on the opening movement of either. When it is required to
raise the sashes the rollers are disengaged and held in such position by suitable
catches.
In applying my device to railway or other carriage windows the upper sash rail
is cut away to admit of the insertion of the inclined race which in this case forms
part of a lever fulcrumed near the said race which runs in the window groove.
On raising the remote end of the said lever the bottom end of the race is withdrawn
from the window groove leaving the window free to be raised or lowered.
When however the lever is released its own weight or a counter weight thereon
causes the race to press the roller against the window groove, the downward move-
ment of the window, causing the roller to traverse the race and jam itself between
it and the window groove and thereby retain the window in the desired position.
In a modified arrangement, the horizontal arm of the before mentioned lever is
dispensed with, the roller race being pressed outward by suitable springs.
In the accompanying two sheets of illustrative drawings:
Fig. 1 is a front elevation of a fastening device for single sashes constructed
according to this invention and Fig. 2 is a side elevation of the same.
Fig. 3 is a front elevation of a window fastening device as applied to a double
sash and Fig. 4 is a side elevation of the same.
Fig. 5 is a vertical section of one form of my fastening device as applied to
carriage windows; Fig. 6 is an end elevation; Fig. 7 is a front elevation of part of
a sash frame showing the lifting plate with finger bolt for raising the roller lever,
and Fig. 8 is a transverse section of the same.
Fig. 9 is a vertical section of a modified form of fastening device for carriage
windows and Fig. 10 is a back elevation of the same.
Figs. 11 and 12 are vertical section and back elevation of a slightly modified
form of the device shown in Figs. 9 and 10.
In the device shown in Figs. 1 and 2 a bracket a forming the race for the
roller c is secured to the sash style d by screws e in an inclined position as shown,
so that when the sash is pushed upwards the roller is jammed between the race b
and the pulley style bead thereby preventing it from being further raised. By
placing and retaining the roller in the upper part of the race clear of the pulley
style bead by means of the sliding rest g and pin i the sash may be raised or lowered
at pleasure.
In the arrangement shown in Figs. 3 and 4 the race bracket a is secured to the
rail or style d of the lower sash, the roller c jamming between the race and the
style d' of the upper sash when the bottom sash is raised. By placing and retaining
the roller c in the upper part of the race clear of the upper sash style by means
of the sliding rest g and pin i either sash may be raised or lowered at pleasure. A
lug adjustably secured in the slot m of the bracket a by the nut n slides against
the bead to resist the thrust of the roller when jammed.
3
In the arrangement of fastening device for carriage windows shown in Figs. 5, 6, 7
and 8 the sash frame is cut away to permit of the insertion of a lever pivotted by
the elongated hole o on the pin p to allow of a limited lateral movement, the end
forming the inclined race in which the roller c works while the arm r is inserted
and works freely in the finger bolt s sliding in the slot t of the lifting plate w.
When the finger bolts is raised the lower end of the race is withdrawn from the
sash groove and the roller falls to its lowermost position free of it when the sash
may be readily raised or lowered. When however the finger bolt s is released it
falls and its weight together with that of the arm r forces the bottom of the race
forward and the roller c into contact with the sash groove, the lowering of the sash

page_text: causing the roller to travel up the inclined race until it is jammed between the said
race and sash groove. Each end of the race q is provided with stops .r, and the
jamming pressure is regulated by a spring y so that although the sash may be held
sufficiently rigid to prevent it falling of its own weight, yet it may be readily
lowered on the application of a small force.
In the modified arrangement shown in Figs. 9 and 10, the lever r and finger
bolts are replaced by the spring z so that the roller c always presses against the
sash groove.
In Figs. 11 and 12 the roller c is provided with extensions a a which abut against
stops ab at the ends of the race q.
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 :-
1. A device for fastening windows consisting essentially of a roller working in
an inclined race attached or connected to a sash in such a manner that as the
sash is moved in one direction it is locked by the jamming of the said roller
substantially as described.
2. The arrangement and construction of window fastening devices substantially
as described with reference to Figs. 1 and 2 and to Figs. 3 and 4 of the
drawings.
3. The arrangement and construction of window fastening devices substantially
as described with reference to Figs. 5 to 12 of the drawings.
Dated this 20th day of October 1891.
WHEATLEY & MACKENZIE,
40, Chancery Lane, W.C., Agents.