Automatic Sash Fastener.
Year: 1894

page_text: Date of Application, 29th Jan., 1894
Complete Specification Left, 13th Oct., 1894-Accepted, 19th Jan., 1895
PROVISIONAL SPECIFICATION.
Automatic Sash Fastener.
GEORGE HARRY KIRK Tudor House Lenton Boulevard Nottingham, Timber
Merchant do hereby declare the nature of this invention to be as follows:-
:―
Window sash-fastener with a bolt worked by a spring to bolt sash stiles to sash-
linings the bolt fastening automatically when the sash is closed.
At the end of the bolt there is fixed a roller, made of wood, iron or rubber, to
lessen the friction when sashes are pushed up or down; the bolt may be solid at
the end instead of a roller.
Also to fasten sashes automatically on the meeting rails of sashes by a bolt
encircled by a coil spring both enclosed in a metal barrel, the bolt fastening into a
catch automatically when the sash is closed.
26th January 1894.
GEORGE HARRY KIRK.
Automatic Sash Fastener.
GEORGE HARRY KIRK Tudor House Lenton Boulevard Nottingham Timber
Merchant 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 :-
Consists of a round bolt encircled by a spring, both enclosed in a horizontal
metal barrel fastened on bottom meeting rail of sash, the spring holds the bolt
extended beyond the top meeting rail of sash, the projecting end of the bolt is bevelled.
At the opposite end of the bolt is a curved handle for the purpose of preventing
spring forcing the bolt completely out of the barrel and for drawing the bolt back
when opening the sash. In closing the sash the bevelled end of the bolt striking
on an inclined plane of a catch fastened on the top meeting rail of the sash, is
forced back into the barrel until the boit arrives opposite a hole underneath the
inclined plane of the catch, the spring then forces the bolt into the hole of the catch
automatically. On the top of the projecting end of the bolt is a vertical nib,
which when sash is fastened projects beyond the catch; by turning the bolt round
with the handle, the nib strikes on the bevelled back of catch, thus drawing the
two sashes together.
For the purpose of describing the invention,
Figs. 1 and 2 in the accompanying drawings are respectively sectional elevation
of sash fastener showing position when automatically locked, and end view of
catch.
Fig. 3 is a plan showing position when fastener is automatically locked and the
sashes drawn together.
Referring to Figs. 1 and 2, A is a round bolt encircled by a spring B, both
enclosed in a horizontal metal barrel C fastened on bottom meeting rail of sash,
the spring B holds the bolt A extended beyond the top meeting rail of sash, the
projecting end of the bolt A is bevelled.

page_text: At the opposite end of the bolt A is a curved handle D for the purpose of
preventing spring B forcing the bolt A completely out of the barrel C and for
drawing the bolt A back when opening the sash. In closing the sash the bevelled
end of the bolt A striking on an inclined plane of a catch E fastened on the top
meeting rail of the sash, is forced back into the barrel C until the bolt A. arrives
opposite a hole underneath the inclined plane of the catch E, the spring B then
forces the bolt A into the hole of the catch E automatically. On the top of the
projecting end of the bolt A is a vertical nib F, which when sash is fastened,
projects beyond the catch E: by turning the bolt A round with the handle D
the nib F strikes on the bevelled back of catch E thus drawing the two sashes
together.
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 :-
An arrangement as fully described herein and shown on accompanying drawings,
whereby window sashes may be automatically locked and drawn together.
Dated this Seventeenth day of October 1894.
GEORGE HARRY KIRK: