An Improved Automatic Draught, Dust, or Water Excluder, specially applicable to Doors, Windows, and the like.
Year: 1890

page_text: Date of Application, 29th Nov., 1890
Complete Specification Left, 29th Aug., 1891-Accepted, 10th Oct., 1891
PROVISIONAL SPECIFICATION.
An Improved Automatic Draught, Dust, or Water Excluder,
specially applicable to Doors, Windows, and the like.
I, HARRY CHAPLIN of 190 Barking Road Canning Town E. Carpenter &
Joiner do hereby declare the nature of this invention to be as follows:-
The object of my invention is, to provide an automatic dust, draught or water
excluder for use on doors, windows and the like.
With this purpose I construct it as follows:-On the outer side of the door
I hang on any suitable hinges a moulded or other flap, or lath, of wood or other
material, extending the entire width of the door, and of any suitable dimensions
so that when the door is closed the flap or lath projects slightly below the same.
On the lower edge of this Hap a strip of india rubber, felt or other flexible
material may be affixed if desired.
Between the door and the flap, one or more spiral or other springs are inserted
in any suitable manner but preferably by removing a portion of the knuckle of the
hinge or hinges and replacing same by a spiral spring of the required strength
surrounding the bolt of the hinge, and having its free ends between the two
leaves of the hinge, causing the same to open when released.
The end of the flap or lath engages in the stop on the door frame, when the door
is closed or it may be acted upon by any suitable projection placed thereon.
The action of my invention is as follows:-While the door is open the springs
force the flap to stand out from the door thus lifting it free from the floor for
convenience of passing over carpets and the like. On closing the door the flap
engages with the door stop or other means provided which presses it tightly down
on the surface of the floor.
One or more stops may be used to prevent the flap from rising out of position
by the action of the springs.
The invention is equally applicable for use on windows, and in other similar
positions.
Dated this 29th day of November 1890.
GRAHAM & GRAHAM,
Agents for Applicant.
COMPLETE SPECIFICATION.
An Improved Automatic Draught, Dust, or Water Excluder,
specially applicable to Doors, Windows, and the like.
I, HARRY CHAPLIN of 190 Barking Road Canning Town E. Carpenter &
Joiner 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 this my invention is, to provide a dust, draught, or water excluder
for use on doors and other like situations, that shall be raised automatically from
the carpet or floor, on opening the door to which it is affixed. For the carrying
out of this invention I construct the draught excluder as follows:-On the outer
side of the door, I hang by means of hinges, of a form to be hereinafter described
a moulded or other lath or flap, preferably of wood, & of any suitable width,
such lath or flap, extending the whole width of the door, & projecting slightly
below the same when pressed flat against it. I will now proceed to a more detailed
En
17

page_text: description of my invention having reference at the same time to the accom-
panying sheet of illustrative drawings in which :-
Fig. 1 is an elevation of the lower portion of a door and door frame, with the
draught excluder fixed thereto.
Fig. 2 a detail cross sectional elevation of part of a door showing the draught
excluder in its position when the door is closed.
Fig. 3, shews the same view as when the door is open, and
Fig. 4, is a plan of one of the hinges prepared for hanging the draught excluder
to the door.
Similar reference letters indicate corresponding parts in all the drawings.
a is the door, bb the door frame or jamb & c the floor, d is the flap or draught
excluder, which may be either plain moulded or ornamental, e is a bead extending
the whole width of the door, forming a stop to prevent the flap from rising beyond
a certain height, as clearly shown in Figs. 2 & 3. The hinges used to hang the
flap are constructed as shown in Fig. 4, a portion of the knuckle or joint fis
removed, preferably in the centre & a spiral spring of suitable strength inserted
round the centre pin of the hinge, the free ends of such spring h, ', exerting an
outward pressure on the two leaves of the hinge it, thus automatically raising the
flap or draught excluder, immediately it is removed from the stop j (Fig. 1,) by the
opening of the door. When the door is closed the flap may be kept down either by
the stop or block j (Fig. 1) affixed to the door stop by any suitable means, or if
preferred, a small portion of the door stop itself k may be cut away for that purpose
and the flap d made of such length as to engage with the same, such stop or block
however, must only be formed on the jamb opposite to that on which the door is
hung. For the better closing of the flap the lower surface of the same should,
preferably have a strip of india rubber tubing or other flexible material affixed
thereto as at so that when the flap is down, this flexible foot will be pressed tightly
against the carpet or floor as shown in Fig. 2.
The action of my draught excluder is as follows:-While the door is closed the
flap d, by engaging in the stop or block j, or the door stop k is kept firmly pressed
on to the carpet or floor; but immediately the door is opened, if only for a short
distance, the flap is raised quite free from the carpet or floor, by the action of the
spring hinges, thus preventing any wear of the carpet or injury to polished or
other floors from the bottom of the door, which need not be made to fit so
closely as heretofore, as my automatic flap entirely prevents the ingress of draughts.
By slight modifications in the form of stop, the draught excluders can be adapted
for use on windows and other situations when desired.
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. The use of a hinged flap engaging in any suitable stop affixed to doors &
other like situations & constructed as & for the purpose herein substantially
specified and illustrated.
2. On draught excluders, as herein specified, the construction and use of hinges
having suitable springs inserted for automatically raising the flap in the manner,
& for the purposes, herein substantially specified & illustrated, in the accompanying
drawings.
Dated this 29th day of August 1891
GRAHAM & GRAHAM,
Agents for Applicant.