Improvements in Sash Fasteners.
Year: 1891

page_text: Date of Application, 14th May, 1891
Complete Specification Left, 15th Feb., 1892-Accepted, 19th Mar., 1892
PROVISIONAL SPECIFICATION.
Improvements in Sash Fasteners.
We, WILLIAM SMITH and JAMES CLAYDON, both of 160 High Street Borough,
London, Manufacturers, do hereby declare the nature of this invention to be as
follows:-
Upon the upper rail of the bottom sash, we screw down a plate in which revolves
freely a perpendicular pin in the thickness of the sash rail a circular hole having
been drilled to allow for such easy working and a coiled spring is arranged around
this pin. Upon the bottom rail of the upper sash we screw a flat hinged metal flap,
the free portion of which is bent down at its end at right angles to the remaining
portion. Another part homogeneous with the part screwed down traverses along
the oblique face of the top rail and is additionally screwed to the side of this rail
by one screw. The hinged portion is pierced upon both its faces with a long slot
and also with two holes respectively at right angles to these slots. The moveable
pin before mentioned is attached to the lower sash rail which terminates at the top
with a flat head, provided on each side with projections capable of fitting into the
circular holes before referred to in the hinged plate.
When it is required to fasten the window the hinged plate is brought down upon
the lower sash rail and the revolving pin slightly raised and turned at right angles
across the slot when the projecting points will fall into a circular holes and be firmly
held there by means of the coiled spring below.
When it is required to open the window the reverse of these arrangements is
carried out.
The great advantage from our improved sash fastener is that the window can be
opened for a short distance and, still be fastened by this device. When this is
required we raise the hinged portion so that the bent end now comes into position
in exactly the same manner as the portion of the plate before referred to, thus the
window can be opened about 2 inches and yet the sash fastener securely, locks the
two sashes together.
A small square plate at the base of the revolving pin gives a bearing for
the coiled spring.
As our improvements are capable of some modifications without departing from
the principle thereof we do not restrict ourselves to materials, dimensions or to the
precise form or placement of the parts thereof.
Dated this 14th day of May 1891.
RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Sash Fasteners.
We, WILLIAM SMITH and JAMES CLAYDON both of 160 High Street, Borough,
London, Manufacturers 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:-
Upon the upper rail of the bottom sash we screw down a plate in which revolves
freely a perpendicular pin in the thickness of the sash rail a circular hole having
been drilled to allow for such easy working, and a coiled spring is arranged around

page_text: :
this pin. Upon the bottom rail of the upper sash we screw a flat hinged metal flap,
the free portion of which is bent down at its end, at right angles to the remaining
portion. Another part homogeneous with the parts screwed down, traverses along
the oblique face of the top rail, and is additionally screwed to the side of this rail
by one screw. The hinged portion is pierced upon both its faces with a long slot
and also with two holes respectively at right angles to these slots. The moveable
pin before mentioned is attached to the lower sash rail which terminates at the top
with a flat head, provided on each side with projections capable of fitting into
the circular holes before referred to in the hinged plate.
When it is required to fasten the window, the hinged plate is brought down
upon the lower sash rail, and the revolving pin slightly raised and turned at right
angles, when the projecting points will fall into circular holes, and be firmly held
there by means of the coiled spring below.
When it is required to open the window, the reverse of these arrangements is
carried out.
The great advantage from our improved sash fastener is that the
window can be opened for a short distance and still be fastened by this device.
When this is required we raise the hinged portion, so that the bent end now comes
into position in exactly the same manner as the portion of the plate before referred
to, thus the window can be opened about 2 inches and yet the sash fastener securely
locks the two sashes together. A small square plate at the base of the revolving
pin gives a bearing for the coiled spring.
As our improvements are capable of some modifications without departing from
the principle thereof, we do not restrict myself to materials, dimensions or to the
precise form or placement of the parts thereof.
Referring to the accompanying sheet of drawings,
Figs. 1 and 2 are vertical sections, and Fig. 3 is a plan of my improved sash
fastener, and Fig. 4 a detail view of one of the catches, Fig. 2 showing a slightly
modified form of catch, and the window fastened in its open position.
1 is the plate fixed to the lower rail 2 of the upper sash, having the second
plate 3 hinged to it and extending over the top rail 4 of the lower sash. To the
rail 4 is screwed the small metal plate 5, and a recess is formed in the wood to allow
the lower part of the catch 6 to pass through the plate and extend downwards
into the rail. A spring 7 is provided, to hold the catch. in its lowermost position.
When the window is closed the plate 3 is turned over on to the rail 4, the, curved
end of the catch passing through the slot 8. The catch is then slightly raised and
turned round through a quarter of a circle, until the projections G* meet the
holes 9 in the plate. 3, the spring 7 causing them to enter the holes and secure
the plate.
At the front of the rail 4 a second catch is situated,. comprising a spring 10,
having a projection 11, and a finger piece 12 for releasing the catch. When the
plate 3 is turned over as above described the projection 11 enters the slot 13 in
the bent end 3" of the plate thus forming with the catch above described a double
lock. Both slots 8 and 13 are formed with sloping sides in order that the catch
can enter more readily.
When the window is to be held open, it is pushed down a few inches, and the
plate 3 is turned over into the position shown in Fig. 2, the catch 6 now entering
the slot 8 and securing the plate in the same manner as before. The catch 6 in
Fig. 2, is of a nearly similar form to the one already described, but is without a
spring or the projections 6ª; being simply a button of suitable shape, turned round
to fasten the plate.
Having now particularly described & ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that. what we
claim is :
(1) Ina.sash fastener, the combination of a plate 3 with bent part 3*, slots 7
and 13, and two catches one on the unner and the other on the front face of the

page_text: rail 4 of the bottom sash, the whole operating in such a manner that the two sashes
can be locked together a few inches open, for ventilating purposes, and when closed,
double locked, substantially as described and shown.
Dated this 15th day of February 1892.
RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicants.