Improvements in Door-catches and Door-fasteners.
Year: 1890

page_text: Date of Application, 10th Jan., 1890
Complete Specification Left, 10th Oct., 1890-Accepted, 15th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Door-catches and Door-fasteners.
We, SAMUEL HILL of 57, Hockley Hill Birmingham in the County of Warwick
Cabinet Bar Fitter and ROWLAND HODGES of 12 Frederick Street Birmingham, in
the County of Warwick Manufacturer & Brassfounder do hereby declare the nature
of this invention to be as follows :--
Our invention relates to the manner in which we construct a door spring catch or
fastening which will automatically secure the door in position upon its reaching the
frame or lintel and which will admit of its being opened readily in either direction if
desired without having to move any handle or manipulate any contrivance for operating
the catch. The catch being in the form of a ball or circular roller revolving upon an
axis carried within the catch frame.
In carrying our invention into effect we construct a fastening for an ordinary door
in the following manner. We form a front plate for attaching to the door out of any
suitable metal having a hole for permitting the roller or globular catch to pass freely
through. This roller or catch we mount upon a spindle preferably formed out of or
upon a lever plate having one end bent slightly down to rest upon the back surface of
the front plate. Through the roller spindle plate or lever plate we drill cast or punch
a hole to allow of a shoulder headed pin passing through and of being then riveted or
rigidly secured to the front plate. Around this headed pin and between the spindle
or lever plate and the head of the pin we place a spiral spring which acts to keep the
lever plate down upon the front plate and thus to keep the ball catch protruding
through the catch hole ready for engaging with the catch plate which is secured in
the ordinary way to the door frame or post. Thus when the door with its ball catch
is pushed against the catch plate the ball catch is forced back against its spring until
the opening or hole of the catch is reached when the spring forces the ball into the
opening and thus secures the door to the frame or to the post.
We open the door by pulling it firmly in either direction if it is a swing door, seeing
that the catch plate will force the ball to move back against its spring in a manner
similar to its action when closing as before described.
The end of the spindle carrying the globe catch we guide and keep central by
means of a plate which we rivet or secure upon the back of the front plate, or by
means of a staple secured to the front plate which permits the pin to work
between it.
Instead of employing a spindle plate with a spring acting upon the plate as before
described, we sometimes construct our catch lock or fastening, with the globular or
roller catch having its spindle carried by a cup shaped or bent frame which frame is
acted upon by one or more springs as may be required for the particular strength of
door fastening that is to be constructed. We guide the cup shaped frame between two
guide plates or staples so that it may rise as a whole not from one end only as before
described with the spindle plate.
Instead of employing a spiral spring around a central pin with our spindle or lever
plate we sometimes construct our fastening with a bent or flat spring attached to the
front plate, or to the guide plate, for keeping the globular or roller catch forced out-
wards for the purposes as before described.
D
L
حيم
T1800

page_text: COMPLETE SPECIFICATION.
Improvements in Door-catches and Door-fasteners.
Wė, SAMUEL HILL, of 260 New John Street West, Birmingham in the County
of Warwick, Cabinet Bar Fitter, and ROWLAND HODGES of 12 Frederick Street
Birmingham, in the County of Warwick, Manufacturer and Brassfounder, 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 the manner in which we construct a door spring catch or
fastening which will automatically secure the door in position upon its reaching the
frame or lintel and which will admit of its being opened readily in either direction if
desired without having to move any handle or manipulate any contrivance for operating
the catch. The catch being in the form of a ball or circular roller revolving upon an
axis carried within the catch frame.
In carrying our invention into effect we construct a fastening for an ordinary door
in the following manner. We form a front plate for attaching to the door out of any
suitable metal, having a hole for permitting the roller or globular catch to pass freely
through. This roller or catch we mount upon a spindle preferably formed out of or
upon a lever plate having one end bent slightly down to rest upon the back surface of
the front plate. Through the roller spindle plate or lever plate we drill, cast, or punch
a hole to allow of a shoulder headed pin passing through and of being then swivelled
or rigidly secured to the front plate. Around this headed pin and between the spindle
or lever plate and the head of the pin we place a spiral spring which acts to keep the
lever plate down upon the front plate and thus to keep the ball catch protruding
through the catch hole ready for engaging with the catch plate which is secured in
the ordinary way to the door frame or post. Thus when the door with its ball catch
is pushed against the catch plate the ball catch is forced back against its spring until
the opening or hole of the catch is reached when the spring forces the ball into the
opening and thus secures the door to the frame or to the post.
We open
the door by pulling it firmly in either direction if it is a swing door,
seeing that the catch plate will force the ball to move back against its spring in a
manner similar to its action when closing as before described.
The end of the spindle carrying the globe catch we guide and keep central by
means of a plate which we rivet or secure upon the back of the front plate, or
by means of a staple secured to the front plate which permits the pin to work
between it.
Instead of employing a spindle plate with a spring acting upon the plate as before
described we sometimes construct our catch lock or fastening, with the globular or
roller catch having its spindle carried by a cup shaped or bent frame which frame is
acted upon by one or more springs as may be required for the particular strength of
door fastening that is to be constructed. We guide the cup shaped frame between two
guide plates or staples so that it may rise as a whole not from one end only as before
described with the spindle plate.
Instead of employing a spiral spring around a central pin with our spindle or lever
plate we sometimes construct our fastening with a bent or flat spring attached to the
front plate, or to the guide plate, for keeping the globular or roller catch forced out-
wards for the purposes as before described.
In the accompanying drawings
Fig. 1 is a front elevation of our improved catch and fastener;
Fig. 2 is a plan of the same.
Fig. 3 is a plan of the plate for carrying the catch roller;
Fig. 4 is a side elevation of the plate and stud for holding the spring, and
Fig. 5 is an end elevation of the same.
Fig. 6 and Fig. 7 are detail views showing the spring and stud with the roller or

page_text: Fig. 8 is a front elevation, and
Fig. 9 is a side elevation of the striking plate.
Fig. 10 is a general view of the same.
Fig. 11 is a general view of our improved catch ready for attachment to any door
or for other like purpose.
In all the figures the same letters of reference indicate the same parts.
A is the front plate of metal having a hole formed within it to receive the ball or
roller E, the portion of metal A' which we press out of the hole being utilized in one
method of constructing our catches, to form a guide for the end of the roller pin or
axis B'. The lever plate B we secure to the front plate in a manner to permit of its
free movement up and down, by means of the stud C; a spring D being placed
around it to cause the ball E always to return to its outer position, as shown in Fig. 1
and Fig. 11. The ball or roller E we mount upon the end or axis B' formed upon
the plate B. Sometimes we employ an ordinary staple or guide for controlling the
movement of the roller spindle, which staple or guide plate we rivet to the front
plate A in the usual ordinary manner.
The striking plate F we construct with a circular hole F¹ into which the roller or
ball catch may enter.
We employ any suitable or ordinary kind of metal for constructing our improved
catches and we use a roller or ball for the purpose of locking the catch with the
striking plate as may be required to suit any particular form of door or frame.
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-
1-The construction of catches and door fasteners having a roller or ball mounted
upon a rising spring controlled spindle substantially as and for the purposes herein-
before described and as set forth.
2-The construction of a catch or door fastener having a ball such as E with an
axis such as B¹ mounted beneath a plate such as A, and having the axis kept in position
by means of a guard such as A¹ substantially as and for the purposes hereinbefore
described and as illustrated in the accompanying drawings.
Dated this 10th day of tchen 1800
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for Applicants.