Year: 1888

page_text: Date of Application, 11th May, 1888
Complete Specification Left, 24th Sept., 1888
Complete Specification Accepted, 9th Nov., 1888
I, JOHN WAREING WOLLOMS of No. 2 Abbey Street, Williamson Street Drypool,
Hull, Yorkshire, Driller do hereby declare the nature of this invention to be as
follows:-
My Invention is devised for the more effectual and safe fastening of windows and
the like. I employ in accordance therewith an ordinary sliding arin pivotted to the
outer or upper sash of the window frame, said sliding arm being free to move across
the top of the lower or inner sash. Upon the piece of metal forming the usual catch-
fixed upon the inner or lower sash to secure the sliding arm in position-I cut out or
recess a slot in which is pivotted an independent self-acting catch, the top or upper
surface of which latter when in position is flush with the flat surface of the ordinary
catch aforesaid of the usual type of window fastenings. The under side of said
independent self-acting catch where pivotted to the ordinary catch, is slightly rounded
or curved to allow of the sliding arm aforesaid riding freely thereunder and raising
same till in its normal position, when the pivotted catch aforesaid again falls into
position thus securely locking the window sashes together; a small knob, bead or
equivalent being provided to raise the pivotted catch before mentioned when it is
desired to unlock the sliding arm.
As a further security in accordance with my Invention, instead of employing the
usual fixed knob to actuate the sliding arm aforesaid, I prefer to tap the outer end of
the arm and provide an adjustable knob the pin of which slightly exceeds in length
the thickness of the sliding arm and is formed with a screw thread to correspond with
that in the sliding arm, so that upon the latter being locked in position and a few
turns given to the knob aforesaid a portion of the pin protrudes from the under side
of the sliding arm and fits into a socket provided in the bottom plate to which the
ordinary catch aforesaid is secured.
From the foregoing it will be seen that in accordance with my Invention I am
enabled to produce a fastening which is self-acting in its use and offers an effectual

page_text: security from the window being raised from the outside; and, to ensure that the
sliding arm aforesaid shall not be sawn cut or otherwise divided or tampered with, I
insert a small piece of steel in the shoulder during the process of casting same.
Dated this Eleventh day of June 1888.
JAMES STEVENSON,
Gray's Inn Obambers,
20, High Holborn, London, W.C.,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Window Fastenings.
1, JOHN WAREING WOLLOMS, of No. 2 Abbey Street, Williamson Street, Drypool
Hull, Driller, 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 :-
My invention has reference to that type of window fastenings in which is employed
a horizontally moving arm attached to the upper sash of a window, and taking into a
catch fixed to the lower sash, and is devised with the object of more securely locking
the arm in position, and at the same time to provide means for preventing the arm
being feloniously cut through by a saw or equivalent from the exterior of a building.
In order that my invention may be the better understood and carried into effect, I have
appended the accompanying sheet of drawings. Figure 1 is an elevation, and
Figure 2 a plan of the device according to my invention, Figure 3 is a detached view
of the sliding arm, and Figure 4 is an elevational view of an ordinary catch with an
independent selfacting catch attached thereto.
In accordance with my invention I employ an ordinary sliding arm A, pivoted upon
a plate a attached to the outer or upper sash of the window frame, said sliding arm A
being free to move horizontally across the top of the lower or inner sash. Upon the
ordinary metal catch B which is adapted to the lower inner sash, I recess or cut out a
slot, in which is pivoted an independent selfacting catch U, the top or upper surface of
which, when at rest, is flush with the flat surface of the ordinary catch B aforesaid of
the usual type of window fastenings. The under side of said independent self-acting
catch C, where pivoted to the ordinary catch, is slightly rounded or curved, as shown
at D Figures 1 and 4, to allow of the sliding arm A aforesaid, riding freely there-
under, and raising same, till said sliding arm A reaches the limit of its travel when
the self-acting catch C falls, by its own gravity, into the recess or slot formed for the
purpose; thus securely locking the window sashes together. A small knob or bead c is

page_text: provided upon the end of the self-acting catch C aforesaid, to serve as a handle for
raising same when it is desired to unlock the sliding arm A. In order to prevent the
self-acting catch C from being turned too far back, and thus straining the pivot b upon
which it moves, I form upon the lower part of the curve D, or attach thereto, a small
pin or projection ; which, upon the catch being raised, would bear against the
under surface of the metal catch B, or, if desired, said pin or projection may take into
a recess or slot formed upon the under surface of the metal catch B aforesaid.
As a further security in accordance with my invention, against the moving of the
sliding arm A of the improved fastener, instead of the usual fixed knob for actuating
the sliding arm A aforesaid, I prefer to tap the end of said arm, into which I insert a
screw e, slightly longer than the thickness of that part of the arm A and terminating
in a knob E ornamental or otherwise as may be desired. The object of the employ-
ment of the above mentioned screw e is, that when the sliding arm A is locked in
position by the self-acting catch C, a few turns of the knob E will cause the end of
said screw e to project beyond the under surface of the sliding arm A and enter a socket
or recess e¹ formed for the purpose in the plate a¹ secured to the inner or lower
sash of the window.
In order to prevent the possibility of the sliding arm A being cut through by a saw
or equivalent means, I secure to the inner edge of the sliding arm A aforesaid, a
plate of steel or other hard metal. Said plate of hard metal may be secured to the
arm A of the fastening during the process of casting, or, if desired, it may be secured
to said arm by means of pins, screws or equivalents.
From the foregoing it will be seen that in accordance with my invention, I am
enabled to produce a fastening, which, being self-locking offers an effectual security
against the opening of a window from the exterior of a building.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
First In a fastener for windows, the adaptat
catch substantially as and for the purpose
accompanying drawings.
Second: In combination with the sliding arm
thereto of an independent self-acting
escribed and shown in the
improved window fastener
herein described, the adaptation thereto of a screw e tak.into a recess e¹ substantially
as and for the purpose herein set forth and shown.
Third In a fastener for windows the adaptation to the sliding arm of a plate
of hard metal substantially as herein set forth.
Fourth-The improved fastener for windows substantially as herein described and
illustrated in the accompanying drawings.
Dated this Twenty first day of September 18SS.