Improvements in Sash Fasteners for Windows.
Year: 1894

page_text: Date of Application, 3rd Aug., 1894
Complete Specification Left, 19th Sept., 1894-Accepted, 20th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in Sash Fasteners for Windows.
I, JOHN LINDOP TRAVIS of No. 27 Canning Street, Blackburn in the County
of Lancaster, Brass Moulder, do hereby declare the nature of this invention to be
as follows:
This invention relates to improvements in the construction of sash fasteners for
windows the object being to construct a fastener having no loose parts, and one
which can readily be unfastened from the inside of the window, but is quite
unassailable from the outside.
According to this invention on one sash, or frame of the window is bolted a
The bracket
bracket in which are preferably two recesses or holding notches.
carries the bolt or holding piece consisting of a short lever, and handle, a pin
passing through the bracket, and through a block free to slide in a slot in the lever
said block being held at one end of the slot by means of a spring. On the other
sash a frame of the window is a curved catch in which is a recess in which engages
a projection on the short lever.
When the window is closed and fastened one end of the bolt or holding piece
rests in one recess in its carrying bracket and the projection at the opposite end is
in the recess in the curved catch. To unfasten the window the bolt or holding
piece must first be drawn forward so that the projection is clear of the recess
whereon the bolt can be turned on its pin so as to clear the curved catch, and the
end of the bolt will then rest in a recess or notch in its bracket, which holds it until
it is forced partly round so as to pass over the curved catch, and the projection
again falls into the recess, and the window is fastened.
Dated this 1st day of August 1894.
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvement in Sash Fasteners for Windows.
I, JOHN LINDOP TRAVIS of No. 27 Canning Street, Blackburn in the County
of Lancaster, Brass Moulder, 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 relates to improvements in the construction of sash fasteners for
windows the object being to construct a fastener having no loose parts and one
which can readily be unfastened from the inside of the window, but is quite
unassailable from the outside and consists of a bracket which carries the bolt or
holding piece consisting of a short lever and handle a pin passing through the
bracket and through a block free to slide in a slot in the lever said block being
held at one end of the slot by means of a spring. On the other sash or frame of
the window is a curved catch in which is a recess in which engages a projection on
the short lever so that the latter is securely held.
Such being the nature and object of my said invention the following is a complete
description of same, reference being had to the accompanying drawings in
which :-

page_text: Fig. 2 is a plan view of the improved fastener the handle and cap or cover of
the bracket being removed in order to clearly shew the construction of the
appliance.
Fig. 3 is an end elevation of the improved fastener in the locked or fastened
position.
Fig. 4 is a similar view to Fig. 3. but the fastener is shewn open or unlocked.
Figs. 5 and 6 are details.
According to this invention on one sash or frame 1 of the window is bolted or
screwed a bracket 2 in which are preferably two holding recesses or notches 3. 4.
The inclined faces A, A tend to cause the end 13 of the bolt 5 to move into one
or other of the recesses 3. 4 so that the bolts in a state of rest is always in the fully
locked or unlocked position. This bracket 2 carries the bolt or holding piece con-
sisting of a short lever 5 with a notch 6 and handle 7. A pin or screw 8 passes
through the cap or cover 9 of the bracket 2 and through a block 10 free to slide in
a slot 11 in the lever 5. A spring 12 placed between the block 10 and the end of
the slot 11 tends to maintain the end 13 of the lever 5 in the recess 3.
A short pin 14 on the block 10 and a recess 15 in the end of the slot 11 hold the
spring 12 in position.
On the other sash or frame 16 of the window is fixed a bracket on which is a
curved catch 17 in which is a recess 18.
The action and mode of operation is as follows -When the window is closed
and fastened (see Figs. 1. 2 and 3) one end of the bolt or holding piece 5 rests
in or nearly in one recess 3 in its carrying bracket 2 and the projection or
notch 6 at the opposite end is in the recess 18 in the curved catch 17. To
unfasten the window the holt or holding piece 5 must first be drawn forward so
that the projection 6 is clear of the recess 18 in the curved catch 17 whereon
the bolt can be turned on its pin 8 so as to clear the curved catch 17 and the
eud 13 of the bolt 5 will then rest in the recess or notch 4 in the bracket 2 which
holds it until it is forced or turned partly round so as to pass over the end of the
curved catch and moving up the curved face of the catch 17, the spring 12 is com-
pressed until the projection is by the expansion of the spring 12 drawn or pulled
into the recess 18 and the window is fastened.
It will be seen that the bolt can readily be moved into the fast or locked position,
but it cannot be moved back, or unlocked without first drawing it forward so that
the notch 6 is clear of the recess 18 in the catch 17 so that it is impossible to
unbolt the fastener from the outside of the window.
Having now particularly described and ascertained the nature and object of
my said invention and in what manner the same is to be performed I declare
that what I claim is :-
1. The general construction, arrangement and combination of parts constituting
the improved fastener, as and for the purpose herein described and as illustrated
by the annexed sheet of drawings.
2. The notched bolt or lever 5 block 10, spring 11 and recessed catch 17 all in
combination as and for the purpose herein described and as illustrated by the
annexed sheet of drawings.
Dated this 7th day of September 1894.
JOHN LINDOP TRAVIS,
By his Agents,
Brierley & Howard,
Penny Bank Chambers, Halifax.