An Improved Sash Fastener.
Year: 1891

page_text: Date of Application, 4th Dec., 1891
Complete Specification Left, 3rd Sept., 1892-Accepted, 8th Oct., 1892
PROVISIONAL SPECIFICATION.
An Improved Sash Fastener.
I WILLIAM DIPROSE of High Street Sandwich in the County of Kent, Cooper
do hereby declare the nature of this invention to be as follows:-
The object of this invention is the construction of a lock sash fastener requiring
a key to open it and which it is impossible to open from the outside.
According to this invention to the meeting rail of the inner sash I fit a mortice
lock constructed as hereafter described, and in the meeting rail of outer sash I form
the hole for the lock bolt. I fit to or form with the bolt of lock (which works
horizontally) a screw which screws into a screw plate fitted in the lock mortice
in the inner meeting rail the end or head of such screw extending entirely or
partially through the meeting rail. The head of such screw may be made of any
form so that a key may fit onto or into it and by turning the key force the bolt
into the hole in the outer sash meeting rail and thus lock the sashes securely.
Dated this 4th day of December 1891.
BROWNE & Co.,
9, Warwick Court, Gray's Inn, Agents for Applicant.
COMPLETE SPECIFICATION.
An Improved Sash Fastener.
I WILLIAM DIPROSE of High Street, Sandwich in the County of Kent, Cooper,
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 the construction of a lock sash fastener requiring
a key to open it and which it is impossible to open from the outside.
According to this invention to the meeting rail of the inner sash I fit a mortice
lock constructed as hereafter described and in the meeting rail of outer sash I form
a hole for the lock bolt. I fit to or form with the bolt of lock (which works
horizontally) a screw which screws into a screw plate fitted in the lock mortice in
the inner meeting rail the end or head of such screw extending entirely or partially
through the meeting rail. The head of such screw may be made of any form so
that a key may fit onto or into it and by turning the key force the bolt into the
hole in the outer sash meeting rail and thus lock the sashes securely.
And in order that my said invention may be better understood I will now proceed
to describe the same with reference to the accompanying sheet of drawings in
which :-
Fig. 1. shews plan of meeting rail shewing section of my improved lock
fastener.
Fig. 2. shews front view of the inner meeting rail.
A. A shew the inner and outer meeting rails respectively b. is a mortice to
receive the bolt c. d. is the case of lock, e. is a pin extending through bolt the
lower end of which has a male thread thereon so as to screw into the case d. by
means of a square f. on the end of pin to receive a key by turning which the bolt
is forced into the mortice b. and thus the two rails are securely locked together.

page_text: 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:
1. In an improved sash fastener the screw bolt fitted to the inner meeting rail in
combination with mortice in outer meeting rail all substantially as and for the
purposes specified.
2. The improved sash fastener substantially as set forth.
Dated this 3rd day of September 1892.
BROWNE & Co.,
9; Warwick Court, Gray's Inn, W.C., Agents for Applicant.