Improvements in Fastenings for Window Sashes.
Year: 1890

page_text: Date of Application, 25th Feb., 1890-Accepted, 5th Apr... 1890
COMPLETE SPECIFICATION.
Improvements in Fastenings for Window Sashes.
I, GEORGE ROBERT BAYLEY, of Smithfield House, Oswestry, in the County of
Salop, Auctioneer, 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 relates to improvements in fastenings for window sashes and consists
chiefly in the arrangement use and application of a spring bolt which is fitted to
slide transversely through the meeting rails of the window sash and to lock or
secure the same together.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying Sheet of Drawings reference being had to
the figures and letters marked thereon.
Figure 1 is a front elevation of part of a window sash fitted with my improved
fastening.
Figure 2 is a plan of the same.
Figure 3 is a transverse vertical section taken on the line A B Fig. 1.
Figure 4 is a longitudinal section taken on the line C D Fig. 1.
Figure 5 is a similar view to Fig. 4 but showing the spring bolt withdrawn.
In these views-a designates the front and b the back meeting rail of the window
sash.
с
The front rail a has a hole a' cut transversely through it from side to side and in
this hole a¹ is fitted a bolt c which projects through a hole in a plate d fixed on the
inner side of the rail a into a recess formed in a plate e secured on the side of the
back, rail b.
The bolt c is prevented from projecting too far through the front rail a by means of
a collar c¹ formed on the bolt said collar abutting against the back of the plate d.
A spiral spring fis coiled on the bolt c and is compressed between the collar c¹ and a
plate g which is secured to the front side of the front rail a, the bolt c also passing
through a hole in this plate g.
On the end of the bolt c is fixed a knob or thumb piece h on the boss or collar of
which is formed a projection h¹. The knob h with its projection fits into a box or
casing i rivetted or otherwise secured to the plate g and in or on this box i is fitted a
slide k which can be drawn back against the pressure of a spring m within the box by
means of a knob k¹.
It will be readily understood that the meeting rails a and b are locked together and
the window sash securely fastened when the parts are in the relative positions
illustrated by Figures 1, 2, 3, and 4.
To unlock the window it is necessary to draw back the slide k by means of the
knob thus releasing the bolt c which can then be withdrawn from the recess in the
plate e by means of the knob h. The rails a and b will then be freed and the bolt c is
retained in the position shown in Fig. 5 by releasing the knob k¹ and allowing the
spring m to force the slide k behind the projection h¹ thereby preventing the spring f
from forcing the bolt c outward until the slide k is again withdrawn.
I wish it to be clearly understood that I do not confine myself to the various
details herein shown and described as the saine may be varied or modified without
departing from the nature of my invention which consists essentially in dispensing
with any catch mechanism placed upon the top of the meeting rails as in ordinary
fastenings and substituting therefor a catch mechanism the leading feature of
which is a sliding spring bolt passing through one rail from side to side to engage
the other rail and capable of being locked in position as required in the manner
herein set forth or in an equivalent manner,

page_text: 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. An improved fastening for window sashes consisting of a sliding bolt embedded
in and passing transversely through one meeting rail to engage the other rail in
combination with means for maintaining and locking said bolt in position sub-
stantially as specified.
2. The construction and combined arrangement of parts constituting the improved
fastening for window sashes substantially as herein 'described and as shown.
Dated this 24th day of February 1890.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.