An Improved Window Sash Fastener.
Year: 1891

page_text: Date of Application, 9th Feb., 1891
Complete Specification Left, 5th Nov., 1891-Accepted, 5th Dec., 1891
COMPLETE SPECIFICATION.
An Improved Window Sash Fastener.
I, JOSEPH HADFIELD of 73 Norfolk Street Glossop in the County of Derby-
shire Draper 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 a means of securing window sashes when required to
be open more or less for the purposes of ventilation, and the object of this invention
is to prevent entrance illegally from the outside during the time said window sashes
are open.
In the accompanying two sheets of drawings, I have illustrated my invention

page_text: and marked thereon letters of reference to which I hereinafter refer: similar
letters refer to similar parts throughout the several views.
In this invention I construct an upright or standard u, of which Fig. 1 is front
view, Fig. 2 side view, and Fig. 3 plan of the same.
I form holes therein at suitable distances apart; I attach said upright a by
means of the foot e to the bottom har d of the top window sash e: I attach to the
top barf of the lower window sash g, a socket h, in which is a stud j that is capable
of being moved forwards so that the end ¹ may be caused to enter one of the
holes b.
Means may be employed for moving the bolt or stud j forward so that said bolt
may become securely locked in any one of the holes it has been caused to enter, or
said bolt may be pressed forward with a spring and would require to be withdrawn
by the hand in order to open a window sash a greater distance; but the bar a and
the end of the bolt j may be so formed as to be able to close a window sash without
requiring said bolt to be withdrawn from the bar a.
.
On Sheet 1, Fig. 4 represents a side view, Fig. 5 a plan, and Fig. 6 a front view
of the bolt or stud; placed in a socket h. One end of the bolt j is formed with a
screw thread which is fitted into a corresponding screw thread formed internally
at the end of the barrel h. By means of a key such as represented in Fig. 7. the
bolt may be screwed forward into any one of the holes as represented in Figs. 8
and 9, which show side view and transverse section of an upper and lower window
sash with my said invention applied.
The two sashes are by these means securely locked when open for the purpose of
ventilation, or secured by the same means when closed.
On Sheet 2, Figs. 13 and 14 represent side view and plan of the bolt ; actuated
by a spring placed in the barrel h., Fig. 14 showing said bolt being held back by
means of the stud which is turned down in the slot j³.
Figs. 10 and 11 are front and side views respectively of the bar with a hinged
nib p placed at the upper end, said nib being retained in the position shown in these.
views by means of the set screw k.
If it is required to open either of the window sashes to a greater distance than
the length of the bar a will allow, the screw k is withdrawn as far as the collar k¹
formed thereon will permit, and said nib inay then be lifted to a vertical position as
shown in Fig. 12.
Fig. 15 shows the bar a capable of being raised without withdrawing the
bolt j, but requiring the bolt ; to be withdrawn before the sash can be lowered.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :--
i
In a window sash fastener the use of an upright or standard that may be attached
to a window sash, said bar having holes or indentations therein for receiving either
a plain, screwed or bevelled end of a bolt or stud that is attached to the adjoining
window sash in the manner and for the purpose substantially as herein before
described.
1
1
N 1001
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.