Improvements in Sash Fasteners.
Year: 1897

page_text: I, GEORGE AIKMAN, of 22, Wedmore Gardens, Upper Holloway, London, N.,
Traveller, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in sash fasteners. On the inner vertical
face of the outer sash is placed a metal plate flush with the face of the sash. In the
centre of this plate is a circular hole threaded to take a screw bolt.
On the inner sash is fixed a metal plate bent at right angles. One portion of the
plate rests on the top surface of the sash, and the other portion of the plate coming
down the inner vertical face of the inner sash. In this vertical inner plate a hole is
formed coinciding with the threaded hole in the outer sash. A bolt is passed from the
inside through the two holes, the bolt being threaded for a portion of its length so as
to take into the threaded hole of the outer sash. To keep the bolt in alignment
until it reaches the outer threaded hole a metal hanger or guide is suspended from
the top portion of the inner sash plate, the bottom of the said guide being circular
to receive the bolt. A cotter is formed on the bolt about one third of its length from
its head and a spiral spring is placed over the threaded portion of the bolt bearing
against the cotter so that when the bolt is screwed into the outer sash the spring is
compressed, thus tending to bind the sashes together. The cotter also prevents the
bolt from being entirely withdrawn when the window is open. The head of the bolt
is formed square, hexagonal, triangular or otherwise as desired, and a key is formed
to fit it so that when the window is fastened the key may be taken away, and the
window cannot then be opened either from inside or outside.
Dated this 22nd day of May 1907
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.
Improvements in Sash Fasteners.
GEORGE AIKMAN, 22, Wedmore Gardens, Upper Holloway, London, N., Commercial
Traveller, 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:-
In the annexed drawing Fig. 1 shows the plate to be fixed to the outer sash, Fig. 2
shews the plate bent at right angles to be fixed to the inner sash, Fig. 3 shews the
metal hanger which keeps the bolt in its proper place, Fig. 4 shows the bolt with
cotter attached and the key made to fit the said bolt, Fig. 5 shows the spiral spring
which is placed over the screwed portion of the said bolt, Fig. 6 gives a side view of
[Price 8d.l

page_text: the fastener as it is fixed in the sash, Fig. 7 shews the key used for screwing the bolt
into the plate on the outer sash. Similar reference letters refer to similar parts in all
the figures.
On the inner vertical face of the outer sash is placed a metal plate (A) flush with
the face of the sash. In the centre of this plate is a circular hole threaded to take a
screw bolt.
On the inner sash is fixed a metal plate (B) bent a right angles. One portion of
this plate rests on the top surface of the sash and the other portion of the plate
comes down the inner vertical face of the inner sash. In this vertical inner plate &
hole is formed coinciding with the threaded hole in the outer sash. A bolt (C) is
passed from the inside through the two holes the bolt being threaded for a portion of
its length so as to take into the threaded hole of the outer sash. To keep the bolt in
alignment until it reaches the outer threaded hole a metal hanger or guide (D) is
suspended from the top portion of the inner sash plate the bottom of the said guide
being circular to receive the bolt. A cotter (E) is formed on the bolt about one third
of its length from its head and a spiral spring (F) is placed over the threaded portion
of the bolt bearing against the cotter so that when the bolt is screwed into the outer
sash the spring is compressed thus tending to bind the two sashes together. The
cotter also prevents the bolt from being entirely withdrawn when the window is open.
The head of the bolt is formed square hexagonal triangular or otherwise as desired
and a key (G) is formed to fit it so that when the window is fastened the key may be
taken away and the window cannot then be opened either from the inside or outside.
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
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