An Improved Fastener for Windows, Doors, and the like.
Year: 1895

page_text: Date of Application, 9th Nov., 1895
Complete Specification Left, 14th July, 1896-Accepted, 15th Aug., 1896
PROVISIONAL SPECIFICATION.
An Improved Fastener for Windows, Doors, and the like.
I JOB EDWARD BURMAN, of Micklefield, Burghill Road, Sydenham in the
County of Surrey, Silk Agent, do hereby declare the nature of this invention to
be as follows:-
The object of this invention is to make a fastener that cannot be unfastened from
the outside by pushing same back with a knife or otherwise.
:
According to this invention, on to a plate (to be screwed to the bottom rail of
the top sash of a sliding window for example) I fit a pin capable of revolving
vertically in the said plate, and to the upper end of saine I hinge a short arm
horizontally this arm forms the catch, the other end of said arm is made so as to
form a spring to spring into a jaw piece, the jaws of which are flanged over slightly
so that the catch piece aforesaid may spring underneath the said flanges.
said jaw piece is screwed on to the opposite rail, to that on to which the catch is
screwed.
Dated this Ninth dow of Naramber 18005
The
BROWNE & Co.,
9 Warwick Court, Gray's Inn, London, W.C.,
Agents for the Applicant.
An improved Fastener for windows, Doors, and the like.
1 JOB EDWARD BURMAN, of Micklefield, Burghill Road, Sydenham in the
County of Surrey, Silk Agent, 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:~
The object of this invention is to make a fastener that cannot be unfastened
from the outside by pushing same back with a knife or otherwise.
According to this invention, on to a plate (to be screwed to the bottom rail of the
top sash stile of a window for example) 1 fit a pin capable of revolving vertically
in the said plate and to the upper end of same I hinge a short arm horizontally:
this arm forms a catch, the other end of said arm is made so as to form a spring to
spring into a jaw piece the jaws of which are flanged over slightly so that the catch
piece aforesaid may spring underneath the said flanges. The said jaw piece is
screwed on to the opposite rail to that on which the catch is screwed.
And in order that my said invention may be better understood I will now
proceed to describe the same with reference to the drawing accompanying this
specification in which
Fig. 1 shews a plan of my fastener closed and fitted in position on the meeting
rails of a window for example.
Fig. 2 shews position of spring catch when window is open.
Fig. 3 is a side view of the spring catch.
Fig. 4 is a front view of the jaw piece.
The same letters denote the same parts in all the views.

page_text: a is a plate screwed to bottom rail of the top sash. pin capable of revolving in
said plate, c arm or catch hinged to pin 6 and formed with spring ends d d which
spring into the jaw piece e, the jaws of which are flanged slightly at one end, as
shewn at Figs. 1, and 4 and the catch c is sprung in beneath the flanges. The
strength of the fastening is increased by forming two projections g g ou the catch c,
which take into corresponding inlets in the jaw piece e. The jaw piece e is
screwed to the top rail of the lower sash.
To open the fastener, the spring ends d d are pressed together, raised clear of
the jaw piece e, and turned back ou to the plate a the projecting head of one of the
screws keeping it in that position as shewn in Fig. 2.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed
claim is :-
declare that what I
1. The improved fastener for windows, doors and the like constructed substantially
.as set forth.
2. In fasteners for windows, doors and the like, the combination of the plate a,
pin b, arm or catch e, spring ends d d and jaw picce e all substantially as set forth.
Dated this 14th day of July 1896
BROWNE & Co.,
9 Warwick Court, Gray's Inn, London, W.C.,
Agents for the Applicant.
BROWNE & Co.,
9 Warwick Court, Gray's Inn, London, W.C.,
Agents for the Applicant.