A New or Improved Draught Preventer for Doors and the like.
Year: 1894

page_text: Date of Application. 2nd Aug.. 1894-Accepted, 8th Sept., 1894
COMPLETE SPECIFICATION.
A New or Improved Draught Preventer for Doors and the like.
1 WILLIAM HENRY THRIFT of 53 Grove Road Mile End in the County of
Middlesex, Ships Composition Manufacturer 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:-
My object is to provide a bar which may be secured to the bottom or top of any
door, for the exclusion of draught, which when the door is open shall be held out
of the way by means of a spring, and brought automatically into use by the
closing of the door, and which shall be capable of being used at the top or bottom,
inside or outside, and for doors opening either right or left hand.
Referring now to the accompanying drawings in which similar letters
represent similar parts throughout Figures 1. 2. 3 & 4 show the apparatus or bar
when fitted to the door, while Figures 5. 6. 7 & 8 show the bar as manufactured.
The letter A represents the bar which is made of wood or other suitable material,
covered with felt or other suitable material; or the covering may be secured in
slots in the bar provided for the purpose. In the bar AI cut two or more parallel
slots B as shown in Figures 1. 5. 6 & 7 and into these slots I fix a spiral spring C.
I also provide a screw D for each slot, which may be placed at either end and
introduced from either side, and I make use of these screws D for securing the
apparatus to the door. As the spring C when introduced into the slot B presses
with one end against the bar A and with the other end against the screw D which
is fixed into the door, the normal position of D will be at the end of the slot and
should the bar A. be caused to move it will slide upon the said screws D D and
compress the springs, until released. E Figures 1. 5. 6 & 7 shows a washer plate
by means of which the springs C and screws D are held in position. In Figures 6
& 71 have shown the covering of the bar in section.
In fastening the bar A to the door when it is to be on the inside as in Figures 1. 2
& 3 it must be placed so that the end of A shall project as shown at G Figure 3
beyond the end of the door, thus as the door is closed the point G will come into
contact with the projection on the door post H thus causing A to slide upon the
screws D and compress the springs C, until when the door is closed as in
Figures 1 and 2 it shall press firmly upon the floor, frame or sill, entirely exclude
all draught.
If the bar A is to be used on the outside of the door the end should be a short
distance back as shown at I Figure 4 and a connecting piece F' which may be of
leather or other suitable material employed, thus as the door is closed the bar
will be drawn back and sliding open the screws D will be pressed upon the floor
frame or sill as above described or it may be arranged so as to cover the space
between door and frame or sill.
In both cases when the door is opened and the bar A released the springs C will
withdraw it until it regains its original position.
I make the bar A alike on both sides, it is therefore reversible, and I arrange
the screws D so that they may be introduced from either side and at either end of
the slots B, the springs C are also capable of being compressed at either end of the
said slots, thus the bar A may be used on the inside or outside, top or bottom
and for doors opening right or left hand.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. In draught preventers the employment of a reversible bar such as described
and shown in the accompanying drawing.
2. In combination with the reversible bar, the screws for securing it to the door,
which may be inserted from cither side and upon which the bar shall slide, together
with the springs which act upon the said screws, which when the door is opened
and the apparatus released automatically withdraw it, substantially as set forth.
3. In reversible draught preventers the automatic action of the bar, which is
brought into position by the closing of the door, substantially as described.
Dated this 2nd day of August 1894.
A. H. REED,
Agent for Applicant.