Improved Means and Appliances for Excluding Dust and Draught, Preventing Slamming and Rattling of Doors, Book Cases, Chiffoniers, and like Articles of Furniture to which Doors are Fitted.
Year: 1891

page_text: Date of Application, 6th Oct., 1891
Complete Specification Left, 6th July, 1892-Accepted, 6th Aug., 1892
PROVISIONAL SPECIFICATION.
Improved Means and Appliances for Excluding Dust and Draught,
Preventing Slamming and Rattling of Doors, Book Cases,
Chiffoniers, and like Articles of Furniture to which Doors are
Fitted.
I, HENRY GARDNER, of 166 Fleet Street, City of London, Patent Agent, do
hereby declare the nature of this invention which has been communicated to me
from abroad by Matthew Brown of Woodstock, near Cape Town, Carriage Builder,
to be as follows:-
This invention has for object, excluding dust, and draughts, also for preventing
slamming and rattling of doors when closed.
For the purpose of this invention, the necessary parts of a door frame against
which-a-door usually presses when closed, is provided with a box or gutter shaped
plate backed by a spring or springs to force said plate outwardly when the door is
open but which spring (or springs) becomes compressed as the door is closing, the
plate or plates being then in close contact therewith.
To carry this invention into practice, say, for the hinged edge of a door, a
square or other shaped groove is formed in the side frame for its full length or
height, and a gutter or other shaped plate with a spring inside is inserted into this
groove with a tendency to press the plate outwardly, so that the edge of the door
while-closing comes to bear against it and forces it inwards until it is about flush
with the frame, the tension on the spring exerting itself to maintain close contact.
To give play to the plate and to retain it in position any means, such as by pins,
can be adopted, or the "stop" can be grooved for the purpose.
The invention is applicable to the top edges of doors, or to the frame, and in the
case of the bottoms of doors the spring pressed gutter or other plate can be within
the edge to bear upon the carpet or flooring by slight spring pressure.
For street and other outside doors, the appliance prevents the entry of rain, as
well as dust and draughts.
Dated this 6th d'an of October 1901
H. GARDNER.
COMPLETE SPECIFICATION.
Improved Means and Appliances for Excluding Dust and Draught,
Preventing Slamming and Rattling of Doors, Book Cases,
Chiffonters, and Ike Articles of Furniture to which Doors are
Fitted.
I, HENRY GARDNER, of 166 Fleet Street, City of London, Patent Agent, do
hereby declare the nature of this invention, which has been communicated to me
from abroad by Matthew Brown, of Woodstock, near Cape Town, Carriage
Builder, and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
This invention has for object, excluding dust and draughts also for preventing
slamming and rattling of doors when closed.
For the purpose of this invention, the necessary parts of a door frame against
which a door usually presses when closed is provided with box or gutter shaped
plate backed by a spring or springs to force said-plate outwardly when the door is

page_text: open, but which spring (or springs) becomes compressed as the door is closing, the
box being then in close contact therewith.
To carry this invention into practice, say, for the hinged edge of a door, a
square, or other shaped groove is formed in the side frame for its full length or
height, and a gutter or other box shaped plate with a spring inside is inserted into
this groove with a tendency to press the plate outwardly, so that the edge of the
door while closing comes to bear against it, and force it inwards until it is about
flush with the frame, the tension on the spring exerting itself to maintain close
contact. To give play to the box, and to retain it in position any means, such as
by pins can be adopted, or the "stop" can be grooved for the purpose.
The invention is applicable to the top edges of doors, or to the frame and in the
case of the bottoms of doors, the spring pressed gutter or other plate can be within
the edge to bear upon the carpet or flooring by slight spring pressure. For
street and other outside doors, the appliance prevents the entry of rain, as well as
dust and draughts.
The foregoing invention will be fully understood by reference to the annexed
drawings.
Figure 1 shows a door partially open.
Figure 2 sectional elevation with the improved apparatus fitted partly in the
lintel and partly in the stop and the door closed and looking up towards top
of door.
Figure 3 similar section from back or hinge portion of door.
Figure 4 similar elevation looking at closing edge of door.
Figure 5 section of door with apparatus fitted in the bottom edge thereof.
Figure 6 section of box with wavy spring in it.
By the above it will be observed that apparatus can be fitted to both sides and
to both ends for the door to be protected all round.
The preparation of the door, A, the lintel, B, the standard, C, or other part of
the frame has only to be rabbetted by a rabbet plane and the box D of zinc, brass,
or other metal, of ebonite, or other hard substance moulded or shaped to fit the
rabbet, to move freely therein with the wavy like spring E within the box, portions
of which spring bear against the box at places and other portions against the base
of the rabbet for equalization of pressure along the full length of the box, this
prevents any one part being affected, consequently every part of the box has free
play to be pushed in by the door while closing and yet remain in contact under the
pressure of the spring.
In practice it is found that free springs for the full length of each box act better
and with greater certainty than springs fixed at various parts and from the fact
that the springs (which are loose) adjusting themselves to inequalities of pressure
from the shrinkage, the warping, or other imperfections of a wooden door, a sound
tight seam against the entry of dust and wind is maintained, said springs also acting
efficiently as cushions to prevent rattling and the noise from the slamming which
mostly happens from back draughts.
Another advantage of this system arises from the certainty of a door being
"close to " for fastening because if not secured the rebound of the spring or
springs sends the door open again.
I am aware that springs and plates, also webbing and the like have been used
for the purpose to which this invention is specially adapted, and no claim is
therefore made to the broad principle of preventing the passage of dust and wind
at the edges of a door, whether it be an outside door, an inside door of a building,
or the door of any article of furniture, shop cases or fittings, or the like, nor for
what are known as French casements.
The box D with the wavy shaped spring E forming the essential feature of this
invention can be readily applied to existing doors, or to door frames by first
grooving a stop strip or fillet F and leaving sufficient space for the box D to work in
then nailing the fillet to the frame, as at Figure 7.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The construction of box like holders for loose fitting wavy shaped springs
and their employment in grooves, for free action against doors, while closing, for
preventing rattling and the passage of wind and dust, also to lessen the noise in
slamming as hereinbefore set forth, and as shown by the annexed drawings.
2. Grooving doors and fitting in such grooves boxes with loose wavy like
springs as means for closing crevices or meeting edges of door and frame, as
described and shown, for the purposes set forth.
My