An Improved Fastening for Windows and other Purposes, to Pre, and to.
Year: 1893

page_text: Date of Application, 2nd Sept., 1893-Accepted, 16th Dec., 1893
COMPLETE SPECIFICATION.
An Improved Fastening for Windows and other Purposes, to
Prevent Windows from being Opened from Outside, and to
Prevent Shaking of the same when Closed.
GEORGE MARCHANT no occupation of No. 1 Eleanor Cottages Stanley Road
East Sheen in the County of Surrey and ANNIE MARCHANT wife of the aforesaid
George Marchant of same address 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:-
Our invention relates to certain improvements which we have made in the
construction of fasteners of the ordinary kind such as are used for fastening the
sliding frames of windows made and fitted in the usual manner. As is well known
fasteners of the ordinary kind consist of a horizontally revolving arm attached to a
plate fixed upon the lower portion of the frame of the upper half of a window
which arm engages with a curved hook or catch attached to another plate fixed
upon the upper portion of the frame of the lower half of the window.
Our invention has for its object to prevent the said arm from being forced back
and the window thereby opened from the outside and also to prevent the upper
and lower halves of the window from rattling or shaking when the window is
closed.
In order to show clearly the mode in which we carry out our invention we have
prepared the drawings hereto annexed and No. 1 to 9 inclusive in which we show
an ordinary window fastening fitted with our invention and also the various parts
thereof in detail. In each of the figures the like letters refer to the like parts.
Fig. 1 shows in plan an ordinary window fastening fitted with our invention.
Figs. 2 & 3 respectively show in plan and in elevation the horizontally revolving
arm A attached to the plate B intended to be fixed upon the lower portion of the
frame of the upper half of a window at the further extremity of the arm A we put
a screw C working in the collar D fixed to the upper side of the arm A, the said
screw C working along and parallel to the arm A, and having a head. E of a size
sufficiently large for it to be turned conveniently.
Figs. 4 & 5 respectively show in plan and in section the curved hook or catch F
attached to the plate G intended to be fixed upon the upper portion of the frame
of the lower half of a window upon the upper side of the hook F is fixed a stud H
against which the end of the screw G is capable of being screwed when the window
is fastened. I is a catch capable of rising up and falling down through the plate G
and is fixed at one end of a rising and falling bed J which bed J is at its other end
fixed to a stud K working through the plate G. Round K we coil a spiral spring
in order to keep I J and K up.
Figs. 6 and 7 respectively show in plan and in section a box or cover to be
attached to the under side of the plate G beneath the bed J so as to give J room
to rise and fall.
Figs. 8 & 9 respectively show in section and elevation a cylindrical tube or
cover to be fixed to the upper side of G so as to permit the stud K to pass through
and be guided by the said cover.
The mode in which the fastener operates is as follows. The windows having
been shut the arm A is slid under the catch F and the moveable catch I which has
been depressed by means of the stud K to permit the arm A to slide past it is
suffered to rise up and the arm A is thereby caught and prevented from being
forced back. When it is desired to open the window the stud K is pressed the
catch I falls and the arm is free to move.

page_text: The window having been closed and fastened as before mentioned the screw C is
turned by means of the head E until the end of the screw C presses against the
stud H; by continuing to turn the screw C the two halves of the window to which
the plates B & G are respectively fixed will be brought into contact with each
other or with the outer framing of the window and so rattling and shaking will be
prevented.
We would here state that we do not claim as our invention any particularly part
or detail of the improved fastener hereinbefore described.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
For the combination in manner substantially hereinbefore described of the catch I
and the screw C with window fastener of the ordinary kind.
Dated this 2nd September 1893.
GEORGE MARCHANT.
ANNIE MARCHANT.