Improvements in and Connected with Window Fasteners.
Year: 1889

page_text: Date of Application, 6th Apr., 1889
Complete Specification Left, 31st July, 1889-Accepted, 21st Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in and Connected with Window Fasteners.
I JOHN PHILLIPS OLDROYD of 240 Regent Street in the County of Middlesex
Gentleman do hereby declare the nature of this Invention to be as follows:
-
My Invention has for its object to provide a window fastener which will auto-
matically act to fasten the window either in a closed or open position thus obviating
the liability to the window being accidentally left unfastened. The fastener also acts
as a means for lowering and raising the upper sash by means of the lower sash.-The
fastener is arranged so that it can be released by a downward pull exerted by cords
or the like led down to a convenient position for being operated from the floor
level.
A fastener constructed according to my Invention consists of a casing secured to
the top of the lower sash in which casing is a sliding bolt urged outwards by a spring
which can be a coiled spring contained in the case and encircling a reduced part of
the bolt and bearing at one end upon an inward projection from the casing and at the
other end upon a shoulder on the bolt. In order to enable this spring to be readily
removed and replaced the tail end of the bolt may be provided with a screwed nut
which when the bolt protrudes comes against the aforesaid projection from the casing.
Secured to or formed in one with the bolt is a device for attaching the upper end
of the cord or the like preferably consisting of a lug which projects through a slot in
the bolt casing and is furnished with a hole for attaching the cord or the like which
passes over a pulley carried by the casing and hangs down to a level where it can be
conveniently reached by the operator. In the upper sash framing opposite to the
bolt is a sories of holes (preferably made in a metal plate screwed to the framing) for
receiving the protruding bolt these holes being at distances apart corresponding to the
various positions in which it is desired to secure the window. When the window is
the
closed the bolt engages in the lowermost hole. When it is desired to open
The window
window the cord or the like is pulled and the bolt is thereby withdrawn.
can now be opened by raising the lower sash and when the cord or the like' is released
the bolt automatically protrudes under the action of the spring and engages with that
of the holes above the lower hole which comes opposite to it. The bolt is not inclined
at its end like a latch bolt but is butt ended like a lock bolt therefore when the lower
sash bas been raised and the bolt engages with a hole above the lowermost hole then
by lowering the lower sash the upper sash is lowered to a corresponding extent. I
have referred to one fastener but generally there will be two, one on each side of the
sash. In order to enable the lower sash to be conveniently raised and lowered I may
provide thumb pieces or lifters on the side or bottom of the lower sash framing in
about the position at which the lower ends of the cords or the like are situated so that
the operator can grasp the lower ends of the cords or the like (or the handles attached
to them) and the thumb pieces or lifters at the same time. These lifters may take the
form of knobs to which the lower ends of the cords or the like are attached so that by
turning these knobs the bolts are withdrawn.
A hole and pin may be provided to retain the bolt more securely in its shot position
if desired.

page_text: COMPLETE SPECIFICATION.
Improvements in and Connected with Window Fasteners.
I JOHN PHILLIPS OLDROYD of 240 Regent Street in the County of Middlesex
Gentleman 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 :-
My Invention has for its object to provide a window fastener which will auto-
matically act to fasten the window either in a closed or open position thus obviating
the liability to the window being accidentally left unfastened. The fastener also acts
as a means for lowering and raising the upper sash by means of the lower sash. The
fastener is arranged so that it can be released by a downward pull exerted by cords or
the like led down to a convenient position for being operated from the floor level. I
will describe my Invention with reference to the accompanying drawings. Figure 1
of which is a front view of a pair of window sashes provided with fastenings
according to my Invention. Figure 2 is a full size vertical section through the
junction of top and bottom sashes the improved fastener being shewn in side
elevation. Figure 3 is a similar section to that shewn in Figure 2 but taken through
the side frames and with the fastener shewn in longitudinal section, and Figure 4 is a
horizontal section through one side of the top sash the fastener being shown in plan
on the lower sash.
A fastener constructed according to my Invention consists of a casing A. secured
to the top of the lower sash in any suitable way preferably by screws as at a a in
which casing is a sliding bolt B urged outwards by a spring C (fig. 3) which can be a
coiled spring contained in the case A. and encircling a reduced part of the bolt B
and bearing at one end upon an inward projection a from the casing A. and at the
other end upon a shoulder 6' on the bolt. In order to enable this spring to be
readily removed and replaced the tail end of the bolt may be provided with a screwed
nut which when the bolt protrudes comes against the aforesaid projection a³ from
the casing. Secured to or formed in one with the bolt B is a device for attaching the
upper end of the cord or the like preferably consisting of a lug which projects
through a slot in the bolt casing and is furnished with a hole for attaching the cord D
or the like which passes over a pulley e carried by the casing A and hangs down to a
level where it can be conveniently reached by the operator. In the upper sash
framing opposite to the bolt is a series of holes (preferably made in a metal plate F
screwed to the framing) for receiving the protruding bolt B, these holes (marked fin
fig. 1.) being at distances apart corresponding to the various positions in which it is
desired to secure the window. The plate F is preferably formed of angle metal that
is with a side strip at f" (figs. 3 and 4) which projects at right angles to the plate so
that these strips at each side of the upper sash act as guides and sideway supports for
the bolt casings A. at each side and consequently keep the two sashes in proper
relative position so that the bolts B always come truly opposite the holes f. In
substitution for or in addition to this the holes may be elongated sideways so that if
the sashes should alter their position sideways the bolts will still come opposite the
holes.
I have referred to one bolt as one only on one side of the window may be used but
generally I prefer to use two, one on each side as shewn in fig. 1 of the drawings
where the corresponding parts in both sides are marked with the same letters of
reference. When the window is closed the bolt B engages in the lowermost hole of
the series f. When it is desired to open the window the cords D or the like are
pulled and the bolts B are thereby withdrawn. The window can now be opened by
raising the lower sash and when the cords D or the like are released the bolts B
automatically protrude under the action of the springs C and engage with the holes f
above the lower holes which are opposite to the said bolts. The bolts B are not
inclined at the end like a latch bolt but are butt-ended like a lock bolt therefore when
the lower sash has been raised and the bolts engage with holes fabove the lowermost

page_text: hole then by lowering the lower sash the upper sash is lowered to a corresponding
extent. In order to enable the lower sash to be conveniently raised and lowered
may provide thumb pieces or lifters G on the side or bottom of the lower sash framing
in about the position at which the lower ends of the cords D or the like are situated
so that the operator can grasp the lower ends of the cords or the like (or the handles
attached to them) and the thumb pieces or lifters at the same time. These lifters
may be of any suitable shape such as that shewn or they may take the form of knobs
(to which the lower ends of the cords or the like are attached) so that by turning
these knobs the bolts are withdrawn. If desired holes a figs. 3 & 4 and pins h
fig. 1 may be provided to retain the bolts securely in either their shot or their
withdrawn position the said pins securing the bolts in their locked position by being
passed in front of their rear ends and in the withdrawn position by engaging the
stops or nuts b' on the bolts.
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 1
claim is :-
1. For fastening windows either in their closed open or partially open position the
arrangement and combination of parts as hereinbefore described and illustrated in the
accompanying drawings.
2. In combination with bolts upon the lower sash of a window of plates F with side
pieces acting as guides and sideway supports for the lower sash so as to prevent
sideway movement of the sashes relatively to each other substantially as hereinbefore
described.
3. Bolts for fastening windows the said bolts having butt shaped ends for entering
holes in a plate so that the upper sash can be drawn down or moved up by the
movement of the lower sash as herein before described.
4. Bolts for fastening windows the said bolts being projected by a spring encircling
a reduced part of the bolt and bearing on a projection in the casing at one end and
on a shoulder on the bolt at the other end the tail end of the bolt projecting through
the projection in the casing being provided with a removeable stop or nut so that the
spring can be readily removed and replaced as hereinbefore described and illustrated
in the accompanying drawings.
Dated this 31st day of July 1889.
J. H. JOHNSON & Co.,
Agents.