Improvements in Door Fasteners.
Year: 1893

page_text: Date of Application, 15th June, 1893
Complete Specification Left, 15th Mar., 1894-Accepted, 21st Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in Door Fasteners.
CHARLES ROSS, 7 Hall Road, Saltley, Birmingham, Manager, do hereby
declare the nature of this invention to be as follows:-
:―
A safety door fastener for fastening doors from the inside made of steel or other
metal as per drawings enclosed.
The plate A is shut between the door and door frame, and in doing so the spike B
is pushed or forced into the door frame fast, the door being then shut the guard C
is then slid along the bar E towards the spike B. The wedge G is then put into
the slot D the door is then fastened and cannot be opened from the outside of the
door, the jointed plate F is, for the guard C to be drawn back onto so that the
guard C will get clear of the door when being opened again after being fastened
by the door fastener. The small stop H is merely for stopping the plate A from
being put too far in between the door and frame, the whole to be made of steel or
other metal, the point B will be made either round, square or oval.
Dated this 15th day of June 1893.
CHARLES ROSS,
Birmingham.
Improvements in Door Fasteners.
I, CHARLES Ross, of 7 Hall Road, Saltley, in the City of Birmingham,
Engineer, 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 door fasteners; my object being to construct a convenient
appliance for readily and securely fastening a door to prevent its being opened from
the outer side.
In order that my invention and the method of carrying the same into effect may
be the more readily understood I append hereunto one sheet of explanatory
drawings, to be hereinafter referred to.
Figures 1, 2 and 3 represent one form of my improved door fastener, while
Figures 4 and 5 are views of a modified form of the same.
The same reference letters in the different views refer to the same parts.
Referring to Figures 1, 2 and 3, I stamp or otherwise produce and form the
plate A from steel or other metal, and having a projecting shoulder 'a, Figures 1
and 2. To the wide or broad end of the plate A, I fix or secure the spike a¹, and
within the stem or narrower portion of the plate I form the slot or aperture a²,
The hinge
Figure 2, for the reception of the wedge or cottar B, Figures 1 and 3.
piece C is pivoted to the end of the stem or narrow portion of the plate A, one
end of the cottar chain D being attached to the hinge piece as shown at Figure 3.
The sliding guard E has a slot or passage formed through it in order that it may
be freely moved along and upon the stem of the plate A.
To secure a door with my improved fastener, and prevent its being opened from
the outer side, the broad end of the plate A, is inserted or shut between the door
and the door frame, in such a position that the spike a¹ is pushed or forced into
the door frame. The door being closed the sliding guard E is brought into the

page_text: position shown at Figures 1, 2 and 3, and secured there by the insertion of the
cottar or wedge B. So long as the guard E remains in the position shown,
the door cannot be opened, being prevented by its contact with the face e, of the
guard E.
To open the door from the inner side, the cottar or wedge B must be first with-
drawn, and the guard E may be then drawn back on to the hinged piece C. Upon
turning the hinged piece to the position shown by dotted lines at Figure 2, the
guard will offer no obstruction and the door may be freely opened.
In the modified form of my improved door fastener as illustrated in Figures 4
and 5, I employ two spikes or claws A', A', on the broad end of the plate A, and
replace the hinged piece and cottar herein before described by the pivoted plate F.
The sliding guard is then secured at the fastening position as at Figures 4 and 5,
by the shoulder f of the pivoted plate F. The guard can be withdrawn for
allowing the door to be opened from the inner side, by raising the plate F until
its edges coincide with the edges of the plate A.; the shoulders f, will then offer no
obstruction to the movement of the sliding guard.
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. A fastener for attachment to a door frame, having a movable guard which can
be fixed when required for the purpose of securing the door and preventing its
being opened from the outer side, substantially as hereinbefore described and as
illustrated in the accompanying drawings.
2. The construction of a door fastener having a spiked plate such as A, with
hinged piece C, and sliding guard and cottar such as E and B, substantially as and
for the purposes herein before described, and as illustrated in Figures 1, 2 and 3 of
the accompanying drawings.
3. The construction of a door fastener having a sliding guard, and a hinged
catch plate such as F, pivoted to a spike or claw plate such as A, substantially as
and for the purposes herein before described and as illustrated in Figures 4 and 5 of
the accompanying drawings.
Dated this 14th day of March 1894
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.