An Improved Window Fastener.
Year: 1889

page_text: Date of Application, 5th Feb., 1889
Complete Specification Left, 4th Dec., 1889-Accepted, 1st Feb., 1890
PROVISIONAL SPECIFICATION.
An Improved Window Fastener.
FREDERICK GEORGE SELF, Junior, of Lion Mansion, Lewes in the County of
Sussex, Horse Trainer, do hereby declare the nature of this invention to be as
follows:-
This Invention has for its object an improved window fastener whereby greater
security or protection from the outside is afforded to windows than heretofore, and
consists in securing a plate to the top sash of the window or other opening having
formed thereon two hooked-shaped catches on either side of the plate facing inwards.
The plate on the bottoin sash of the window is enlarged so as to overlap the hooked
shaped catches formed on the top sash plate and the crevice formed between the two
sashes.
The bottoin sash plate has two holes perforated through it to correspond with the
two hook shaped catches on the top sash plate, and through which the said catches
pass. Upon the said bottom plate are hinged in any desired manner two bolts working
in a suitable guide and kept in position by a spiral or other spring, so that on the window
being closed the bolts which may be tapered off and being hinged together, or
separately will through the medium of the spring "give" on coming in contact with the
hooked shaped catches thus allowing the said catches to pass through the openings
formed in the bottom plate and when sufficiently through the plate the bolts will be
forced outwards by the spring and under the hooked catches thus fastening the window
or other opening in a secure and efficient manner.
In cases where it is desired to further secure the window or door I employ a
suitable lock, the bolt of which may be made to catch in any desired part of the sash
plates the case thereof forming a cap or covering to the window fastener.
Dated this 5th dow of Fabzua 1880
FREDERICK GEORGE SELF, JUNR.
COMPLETE SPECIFICATION.
An Improved Window Fastener.
1 FREDERICK GEORGE SELF, Junior, of Lion Mansion, Lewes, in the county of
Sussex, Horse-trainer 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 relates to improvements in window fasteners with the object of
affording greater protection or security from the outside.
The apparatus which may be placed in the usual position on the window consists
of a plate with hook-shaped catches attached to one sash and a plate with locking-bolts
attached to the other.
In the accompanying drawings I have shown one form of the apparatus of my
invention the various figures being different views of the same apparatus and the same
letters on these figures indicating the same parts. Fig. 1 is a general plan, Fig. 2 a
sectional plan through y y Fig. 3, and Fig. 3 à sectional elevation on 2, a Fig. 2. Fig. 4
is an elevation and Fig. 5 a plan of hook-catches. Fig. 6 is a plan and Fig. 7 an
elevation of the side-plate which holds the bolt-plate.
The bolts A which are pressed apart by spring B are pivotted at a to the plate C
and have knobs a' by means of which they can be pressed together as far as stop a³
will allow for the purpose of releasing the hook-catches. The bolt-plate C is provided
with a protective cover c and slides in a slide-plate D attached to the sash. The
object of slide-plate D enable plate and protective cover C, to slide back that the
ID 1

page_text: bottom sash may pass any partition there may be in top sash bolt-plate Cand slide-
plate D are locked together by bolt. E pressed into hole e by spiral spring el.
The catch-plate is attached to the sash and carries the hook-catches which pass
through holes in block plate and engage with bolts A.
The lock is secured to the casing or cover a and its bolt g (when locked) enters
between the horns a² of bolts A.
When the window is closed the hook-catches will enter holes and engage with
bolts A and so lock the window, which cannot be opened again until knobs a' are
pressed together. Greater security can be had by locking the lock so ilint its bolt
may enter between the bolts A and prevent their being pressed together.
In some cases I omit the lock.
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 1
claim is :-
1. In window and other fastenings the combination of holis A and hook-catches ƒ,
substantially as shown.
2. In window fasteners the combination of hook-catches and bolts A with their
bolt-plate C sliding in slide-plate I) with locking device substantially as shown and
for the purposes set forth.
3. In window fasteners the combination of bolts A and hook-catches with lock G
substantially as and for the purposes set forth.
Dated this 4th day of December 1889.
FREDERICK GEORGE SELF, Jusn.