Device for Preventing Draughts under Doors.
Year: 1893

page_text: COMPLETE SPECIFICATION.
A Device for Preventing Draughts under Doors.
I, JOHN POATE, of Rumbold's Hill, Midhurst, in the County of Sussex,
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 means for preventing draughts under doors, the device
only coming into operation to fill the space between the door and the floor upon
the door being closed.
In the accompanying drawings,
Fig. 1 is a view, partly in side elevation and partly in section on the line x, x
(Fig. 3), of the bottom of an open door fitted with my invention.
Fig. 2 is a similar view; the door having been closed and the draught-excluder
thereby forced into its operative position.
Fig. 3 is a section on the line y, y (Fig. 2).
Fig. 4 is a plan corresponding with Fig. 1.
Fig. 5 is a view corresponding with Fig. 3, but showing a different way of
applying the invention to the door.
The
The draught-excluder consists of a bar or bipart strip formed of two pieces of
wood A and A¹ secured together by screws, and holding between them a double
canvas web to which a rubber tube B is solutioned. A solid cord of rubber may,
however, be substituted for the tube, and the cord or tube may be attached to the
bar or pieces of wood in any convenient manner. The draught-excluder A A' B is
connected to a strip of wood C by links D and D', and also by a spring E. These
parts are then mounted in a slot in the bottom of the door. The draught-excluder
may, however, be connected directly to the door, instead of to the strip C.
extremity A* of the bar or bipart strip A. A' projects from the side of the door F
when the draught-excluder A. A' B is in its normal position, as in Fig. 1. While
the door F is being closed, the extremity A* bears against the door-frame G, thus
gradually forcing the draught excluder endwise and downwardly until it comes
into contact with the floor and compresses the tube B, as in Figs. 2 and 3, whereupon
the space between the door and the floor is effectually closed. The tube B or its
equivalent may nevertheless be dispensed with and the naked edge of the bar caused
to make contact with, or to approach, the floor or carpet. The downward movement
of the draught-excluder is preferably obtained by inclining the links D and D¹
as shown in Figs. 1 and 2. The downward movement may, however, be produced
in other ways; for instance, by inclined surfaces on the parts A A¹ and C. Or
there may be employed jointed links and an intermediate rod connected to the
joints, this rod instead of the bar coming into contact with the door-frame and
causing the bar to move rectilineally downwards instead of downwards and end wise
as before described. The spring E serves to bring the draught-excluder from its
lower or operative position (Figs. 2 and 3) into its higher or normal position
(Fig. 1) during the opening of the door. This spring may be dispensed with
if the end Ax be linked to the door-frame.
Instead of the draught-excluder being, mounted in a slot in the bottom of the
door, as in Figs. 1 to 3, it may be placed outside the door, as in Fig. 5. In this
instance, it is preferably linked to a moulded and recessed strip C" screwed to one
side of the bottom of the door.
The draught-excluder, instead of being mounted to move longitudinally in or
against the door, may turn on a horizontal pivot, its free edge preferably carrying
a tube or cord of rubber, the inner end of this edge being acted upon by an incline
on the door-frame during the closing of the door.

page_text: Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I claim :-
1. The improved means for preventing draughts under doors, arranged and
operating substantially as described with reference to the accompanying drawings.
2. The improved device for preventing draughts under doors, arranged sub-
stantially as herein described and comprising a bipart or a solid strip or bar
linked to the door and carrying a tube or cord to bear against the floor, the
end of the strip abutting against the door-frame so that during the closing of
the door the rubber-faced edge of the strip or bar is gradually forced into contact
with the floor.
3. The improved device for preventing draughts under doors, arranged sub-
stantially as herein described and comprising a bipart draught-stop bar A A¹ edged
with yielding material, such as the rubber tube B, two links D and D' connecting
the bar A. A to the door, and a spring E for drawing the bar upwards and endwise
when the door is opened.
Dated the 29th day of May 1893.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Chartered Patent Agent.