Improvements in or relating to Window Sash Fasteners.
Year: 1897

page_text: Date of Application, 4th June, 1897
Complete Specification Left, 21st Aug., 1897-Accepted. 25th Sept.. 1897
Date of Application, 4th June, 1897
Complete Specification Left, 21st Aug., 1897-Accepted. 25th Sept.. 1897
Improvements in or relating to Window Sash Fasteners.
I, EDWIN JOSEPHI MORGAN, of 76, St. Giles' Street, Norwich, in the County of
Norfolk, Gentleman, do hereby declare the nature of this invention to be as
follows:
The object of the present invention is to provide an efficient burglar proof sash
fastener of simple and economical construction.
According to my invention I mount a short rock shaft within a suitable bearing
bracket secured to the meeting bar of the lower sash. One end of this rock shaft
extends over the meeting bar of the upper sash and has secured to it a strong
locking hook adapted to engage with a socket piece of peculiar construction,
secured to the meeting bar last mentioned, when the rock shaft is partially rotated
by a suitable lever which it also carries.
The top of the interior of the socket engaged by the hook, and that side thereof
nearest the lower sash, from inclined planes against which the inner face and
side of the locking hook bear when the latter is forced into the socket by pulling
over the actuating lever. A double wedging action is thus produced whereby the
meeting bars of the two sashes are drawn firmly together both horizontally and
vertically.
The actuating lever is so fixed on the rock shaft that when the fastener is in
its locking position the end of said lever will rest upon the meeting bar of the
lower sash thereby effectually preventing the upper sash from being pulled down
to the smallest extent.
Improvements in or relating to Window Sash Fasteners.
I, EDWIN JOSEPH MORGAN, of 76, St. Giles' Street, Norwich, in the County of
Norfolk, Gentleman, do hereby declare the nature of this invention and in what
30 manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
The object of the present invention is to provide an efficient burglar proof sash
fastener of simple and economical construction.

page_text: According to my invention I mount a short rock shaft within a suitable bearing or
bracket secured to the meeting bar of the lower sash. One end of this rock shaft
extends over the meeting bar of the upper sash and has secured to it a strong
locking hook adapted to engage with a socket piece of peculiar construction,
secured to the meeting bar last mentioned, when the rock shaft is partially rotated
by a suitable lever handle.
The interior of the socket at the end entered by the locking hook is inclined
or bevelled off at the top and one side so that when the locking hook is forced into
the socket, by pulling over the actuating lever, a double wedging action is pro-
duced causing the meeting bars of the two sashes to be drawn firmly together
both horizontally and vertically.
The actuating lever is preferably so fixed on the rock shaft that when the
fastener is in its locking position the end of the said lever will rest upon the
meeting bar of the lower sash.
In the accompanying drawings Figs. 1 and 2-represent in side elevation and
plan respectively a window sash fastener constructed in accordance with one form
of my invention..
Fig. 3 is a part sectional plan and Fig. 4 an end view of the socket piece for
use therewith. Fig. is a section on line - Fig. 3. Figs. 6 and 7 represent
in side elevation and plan respectively a window and sash fastener of a slightly
modified form and Fig. 8 is a side view of the socket piece or staple for use there-
with. Fig. 9 is a section on the line y-y of Fig. 8.
I will first describe my invention with reference to Figs. 1 to 5. This form of
window sash fastener is suitable for windows without lateral sash bars.
A, indicates the meeting bar of the lower window sash and B the meeting bar
of the upper sash. To the bar A is secured the bracket a in which is mounted
the boss 6 of the short rock shaft b. To the end of this rock shaft is secured the
locking hook c adapted to engage with the socket piece d secured to the bar B.
e is a lever handle secured to the boss 6', by means of which the fastener is locked
and unlocked.
That end of the socket entered by the locking hook is inclined or bevelled off
on one side at d¹ and also on the top at 2 (Figs. 3, 4 and 5) so that when the
locking hook is forced into the socket, the meeting bars of the two sashes are
wedged together both in a horizontal and in a vertical direction.
In Figs. 6 to 9, I have shown a window sash fastener more particularly suitable
for use with windows having lateral sash bars.
To the meeting bar A is secured the bracket a in which moves the short rock
shaft 6* capable of receiving longitudinal as well as partial rotary motion. To
one end of this rock shaft 6* is secured the locking hook c* adapted to pass
through the socket piece or staple d* secured to the bar B, and to the other end
is secured the lever handle c.
quite
The rock shaft 6* is partly cut away at that end adjacent to the locking hook c
as shewn in Figs. 6 and 7 to enable the rock shaft to be moved forward even
when the meeting bars are not level. When the lever handle e is turned
the flat portion of the rock shaft * acts against the under face of the socket piece
or staple d* and raises the meeting bar B of the upper sash or depresses the
meeting bar A of the lower sash, as the case may be, thus closing the window
completely.
The socket piece or staple d* is bevelled off on the top at d² and the locking
hook is bevelled off as shown in Fig. 7, thus when the lever handle e is turned
down, the two inclines acting against each other cause the meeting bars to be
in close contact.
It will be understood that the lever c and rock shaft 6* are moved into the
position shown in dotted lines in Figs. 6 and 7 when it is desired. to open the
window thus re-moving the end of the rock shaft 6* and the locking hook c*
from the socket piece of staple d* and in this position the locking hook c* can
readily pass the lateral sash bars.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. A window sash fastener comprising a locking hook mounted on a rock shaft
carried by a suitable bearing secured to the meeting bar of one sash and a socket
piece secured to the meeting bar of the other sash and adapted to be engaged by
said locking hook on the partial rotation of its shaft, the top and one side of the
socket entered by the hook being inclined or bevelled so that the introduction of
the hook will draw the meeting bars together both horizontally and vertically as
described.
2. A window sash fastener comprising a locking hook mounted on a rock shaft
partly cut away at its end capable of receiving longitudinal motion carried by a
suitable bearing secured to the meeting bar of one sash and a socket piece or staple
secured to the meeting bar of the other sash and adapted to be engaged by said
locking hook and rock shaft on the forward movement and partial rotation of
the same, the top of the socket piece or staple being inclined or bevelled so that
the introduction and partial rotation of hook will draw the meeting bars together
both horizontally and vertically, substantially as herein shown and described.
3. The improvements in window sash fasteners constructed and arranged as
described and illustrated in the annexed drawings.
Dated this 01at tore of Auonat 1907
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C., Agents.