An Improved Door Fastener.
Year: 1892

page_text: Date of Application, 19th Aug., 1892-Accepted, 1st Oct., 1892
COMPLETE
SPECIFICATION.
An Improved Door Fastener.
We, THOMAS EDWARD WINSLADE, and JOHN NEIL JENKINS, Gentlemen,
both of 2 Holborn Hill, Traumere, Birkenhead Cheshire, 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 :-
This invention relates to an improved door check or fastener, intended as a safety
guard, which can be readily applied to doors to prevent them being opened, used
either with or without the ordinary lock.
The device is to be placed at the bottom of the door, either screwed loosely to it,
or simply placed against it, the bottom resting upon the floor. The device consists
of a case in which is contained a pivotted blade, the lower end of which is
sharpened to a point. Both ends of this blade may project through slots in the
bottom and front of this case, the pin on which it turns being situated near the
upper end. The arrangement is such, that, when applied to a door, the lower and
pointed end of this blade or lever rests upon the floor, without however entering it.
The upper end of this blade projects through the slot at the front, and rests against
the face of the door, so that when the door is pushed back in the attempt to open,
the blade is pushed down into the floor, effectually preventing fastener from
being moved back and holding the door in position. Any further pressure on the
door only serves to force the blade farther into the floor, causing it to take
firmer hold. The front of the device is made slightly sloping, so that when the
door is forced back violently, pushing in the upper part, it will lie flat with the face
of the fastener and press the blade down with greater force. The bottom plate
projects forward for a small distance, so that it can be inserted under the door,
causing it to retain its position better. When the device is screwed to the door, it
must only be fastened loosely, so that it can move forward a little, in order to allow
of the door acting more effectively on the blade. A small catch is provided inside
the case, and a notch is formed on the upper part of the blade, so that when it has
entered into the floor to a certain depth, the catch will fall into the notch and
prevent the blade being raised, unless unfastened from the inside. When the catch
is fastened to the door, but is desired to be inoperative, a pin is inserted through
LUG, provided for that purpose, in the case, under the blade, thereby raising it
fron, the floor and preventing it catching. This check can be applied at once to
any door, and can be carried about by travellers to attach to the doors of their
sleeping rooms, in order to prevent them being opened during the night, the device
the being simply pressed against the door, so that the point enters the floor a
sh
ort distance.
In order that my invention may be more clearly understood, reference is had to
the accompanying sheet of drawings, in which
Figs. 1, 2 and 3 are vertical sections, showing the device in different positions
attached to the door,
Fig. 4 is a rear view, and
Fig. 5 a side elevation.
A is the door, shown in section in Figɛ. 1, 2 and 3, preferably cut away, as shown,
at the bottom, to allow of the projecting part of the base plate B being placed
under it. C is the front plate of the device with a slot C₁ at its upper part, the
case D being fixed between the two plates. Within this case is pivotted the
blade E, having a nose E' at top, projecting through the slot C, and a sharp pointe!
lower end, projecting, in the positions shown in Figs. 2 and 3, through the slot B
in the base plate B. The blade is pivotted so that its own weight will cause it
to rest, when not otherwise suported, on the floor.

page_text: The
F is a small pivotted arm, which acts as a catch or stop when the blade has
reached the position shown in Fig. 2, by falling into the notch E' in the blade,
thereby preventing it being raised unless the arm is lifted. To raise the arm the
upper end is pressed down, bringing it into the position shown in Fig. 1.
upper end abuts against, the end of the slot, which prevents it from falling past
its proper position. In order that the blade may be held in its uppermost
position, when not required to be used, the pin G is employed, attached to the
case by a chain, which is inserted in the hole H under the blade.
The screws J,
when the device is to be fastened to the door, are inserted on each side of the case,
through the front plate, leaving a small space between it and the door, so that
when the door is forced back it takes up the position shown in Fig. 2, coming
close up to the front plate and operating the blade. Fig. 3 shows it when still
further forced in, coming flush with the face.
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) A door check or fastener, consisting of a case D, with base and front plates B
and C, carrying a pivotted blade E, with pointed end and nose E', projecting
respectively through slots B' and C', substantially as described and for the purpose
specified.
(2) In a door check of the kind described, the combination of base and front
plates B and C, case D, pivotted blade E, having a pivotted end and nose E',
projecting through slots B and C, an arm F, arranged to fall into the notch E
and hold the blade down, and a pin G, substantially as described and shown and for
the purposes specified.
(3) My improved door check or fastener, constructed and operating substantially
as described and illustrated in the accompanying drawings, and for the purposes
specified.
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicants.