An Improved Fastening Device for Securing Doors and the like.
Year: 1894

page_text: Date of Application, 19th Apr., 1894
Complete Specification Left, 2nd Aug., 1894-Accepted, 8th Sept., 1894
PROVISIONAL SPECIFICATION.
An Improved Fastening Device for Securing Doors and the like.
1, GEORGE BRAGGE PRETTY of 66 Rutland Street Mile End in the County
of London, Builder's Foreman, do hereby declare the nature of this invention to be
as follows:-
The object of my said invention is to provide a simple and inexpensive fastening
for securing doors and the like.
According to my invention I provide a suitable catch mounted on a pivot within a
frame and adapted to rise and fall therein, the said catch being kept in position by
a suitable spring.
On one side of the frame above mentioned I provide a suitable casing fitted
with one or more pulleys as may be required for the purpose hereinafter
described.
The fastening is fixed within a recess or housing made for the same in the
lintel or linings over the door. The door is fitted on the top edge with a suitable
striking plate which does not project in any way. One end of a cord or its
equivalent is secured to the catch, and the other end passes over one of the
pulleys before mentioned and may be continued over another pulley if required,
fixed to the side of the door frame or any other suitable position; the said
cord being for the purpose of operating the said catch so as to release the door.
The arrangement is such that on simply closing the door the striking plate on
the top edge of the said door comes in contact and automatically engages with the
catch and is thereby secured. On pulling the cord the catch is raised and the door
released.
My improved fastening can be adapted for securing doors and the like opening
either inwards or outwards. By its use all flush and other bolts at present used for
fastening doors at the top can be dispensed with. As no projections on the door
are necessary it has a much neater appearance, than any fastening in use for a like
purpose, at present; the pulleys also being connected with the fraine of the catch,
make it more compact.
Dated this Nineteenth day of April 1894.
COMPLETE SPECIFICATION.
An Improved Fastening Device for Securing Doors and the like.
I, GEORGE BRAGGE PRETTY of 66 Rutland Street Mile End in the County of
London, Builder's Foreman 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 my said invention is to provide a simple and inexpensive
fastening device for securing doors and the like. It is more especially adapted
for securing that door of a pair of doors which is first closed; in place of the
ordinary bolts at present in use.
Referring to the accompanying drawings
:-
Figure 1 is an elevation, and Figure 2 is a section of my improved fastening

page_text: device fitted so as to secure one of a pair of doors, that is, the first one closed, the
said door opening inwards.
A is a catch mounted on a pivot B and adapted to rise and fall between the
walls of the frame or brackets C which may be formed in one with the bed
plate C'; the catch is kept in its normal position by a spring D which is secured
to a crosspiece D' by means of a screw or rivet T or otherwise. E shows the casing
with the pulleys P P mounted therein.
The whole device, with the exception of the catch, spring and pulleys, can be
cast in one piece, but it may be made in separate parts if desired; brass or iron,
or any other suitable material being used.
The fastening is fixed within a recess or housing made for same in the lintel
or linings L over the door.
The door G is fitted on the top edge with a suitable striking plate S which as
will be seen does not project in any way whatever. A recess R is made on the top
edge of the door to allow room for the knuckle joint N of the catch.
One end of a cord F or its equivalent is secured to the end of the catch A and
the other end passes over one of the pulleys P and may be continued over another
pulley fixed to the side of the door frame or any other suitable position, the
loose end of the cord hanging within easy reach of the hand, the object of
the.cord F being for the purpose of operating the catch A so as to release the
door.
The arrangement is such that as the door G is approaching its closed position
the striking plate S on the top edge of the door comes in contact with the inclined
surface A of the catch A and forces the catch into a position shown by the dotted
lines in Figure 2, and when the door arrives in its closed position, the catch will,
under the action of the spring D automatically resume its normal position as
indicated by the full lines in Figure 2, and will thus securely retain the door in its
closed position.
The simple action of pulling the cord F raises the catch into the dotted position
again and thus releases the door.
The object of providing the two pulleys PP is to allow of the cord F being
used either on the right or left side of the doorway, it will however be readily
understood that the fastening would be quite as efficient with only one pulley,
but would not be quite so adaptable.
Figure 3 is a plan of striking plate S fixed on the top edge of the door. R is a
plan of the recess formed in the door to allow room for the knuckle joint N of the
catch as before described.
Figure 4 is a view of the underside of the fastening.
Figure 5 is a view of the top side of same.
Figure 6 is an elevation and Figure 7 is a section of my improved fastening
device fitted to that door of a pair of doors which is first closed the said door
opening outwards.
In Figure 6 it will be noticed that the woodwork in front of the fastening and
also the door is not shown, this is in order that the fastening may be seen more
clearly.
In this arrangement instead of forming the casing E for the pulleys P P on the
front of the fastening as in Figures 1 and 2 it is formed on the back as shown in
Figures 6 and 7. The catch A is elongated from the pivot B backwards as shown
at A' in Figure 7 and is adapted to receive the end of the cord F.
The action of the fastening is similar to that which has been fully described in
reference to Figures 1 and 2 and the corresponding parts are similarly marked; the
only difference being that instead of attaching the cord to the front end of the
catch to raise it, it is attached to the back end and on being pulled it depresses
this end and thus raises the front as shown by the dotted lines in Figure 7.
A recess R2 is formed in the top edge of the door G to allow room for the end of
the catch the top edge of the door is also fitted with a striking plate S.
Figure 8 is a plan of the recess R2 and striking plate S above referred to.

page_text: Figure 9 is a view of the underside of the fastening.
Figure 10 is a view of the top side of same.
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 a fastening device for securing doors and the like opening either inwards.
or outwards, the combination of the frame or brackets C and the casing E formed
in one with the bed plate C', including the crosspiece D' for attaching the
spring D, the casing E being fitted with one or more pulleys. A striking plate S
fitted to the door to be secured so as not to project in any way whatever;
constructed arranged and operating substantially as hereinbefore described in the
Specification and shown upon the drawings with reference to Figures 1 to 10.
inclusive.
(2.) In a fastening device for securing doors and the like opening outwards,.
the catch A elongated from the pivot B backwards and adapted to receive the end
of the cord F for the purpose of operating the same, as shown at A' in Figure 6 of
the drawings annexed.
3 of dust 1901
G. B. PRETTY..