Year: 1898

page_text: I, WILLIAM EDMUND SHEFFIELD, of 77, Church Street, Stoke Newington, in
the County of London, Accountant, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in draught excluders particularly
adapted for all kinds of doors.
According to the invention the underside of the door is grooved to receive a
base plate into which fits a bar running the whole width of the door, the said
bar being adapted to slide in the base plate and having attached to it one arm
of a lever which is pivoted to the base-plate and the other arm of which is con-
nected to a rod which passes through suitable guides and the end of which
normally, that is to say, when the door is opened, projects beyond the edge of
the door. A spring is provided upon the rod, the said spring being designed
to normally hold the bar in its innermost position in the grooved base plate.
A suitable stop or the like is provided upon the door frame in such a manner
that when the door is closed the projecting end of the rod comes into contact
with the said stop upon the door frame so that it is forced inwards against the
action of the spring thereby actuating the pivoted lever so as to force the bar
down into contact with the floor and close the space between the bottom of the
door and the floor to exclude draughts.
The bar is preferably furnished with felt or any other suitable material which
is advantageously fitted in a groove formed therein and the projecting end of the
rod is provided with a nut so that by suitably regulating the position of the nut
upon the end of the said rod the apparatus can be adjusted to suit different widths
of space between the door and floor. To prevent the nut from accidentally turning
it is made square and passed through a hole in a plate secured to the edge of the
door.
AAA
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.

page_text: and in what manner the same is to performed, to be particularly described and
ascertained in and by the following statement:
This invention relates to improvements in draught excluders particularly
adapted for all kinds of doors.
According to the invention the underside of the door is grooved to receive a
base-plate into which fits a bar running the whole width of the door, the said
bar being adapted to slide in the base plate and having attached to it one arm
of a lever which is pivoted to the base-plate and the other arm of which is con-
nected to a rod which passes through suitable guides and the end of which
normally, that is to say, when the door is opened, projects beyond the edge of
the door. A spring is provided upon the rod, the said spring being designed
to normally hold the bar in its innermost position in the grooved base plate.
A suitable stop or the like is provided upon the door frame in such a manner
that when the door is closed the projecting end of the rod comes into contact
with the said stop upon the door frame so that it is forced inwards against the
action of the spring thereby actuating the pivoted lever so as to force the bar
down into contact with the floor and close the space between the bottom of the
door and the floor to exclude draughts.
The bar is preferably furnished with felt or any other suitable material which
is advantageously fitted in a groove formed therein and the projecting end of the
rod is provided with a nut so that by suitably regulating the position of the nut
upon the end of the said rod the apparatus can be adjusted to suit different widths
of space between the door and floor. To prevent the nut from accidentally turning
it is made square and passed through a hole in a plate secured to the edge of the
door.
;
To enable my invention to be fully understood I will describe the same by.
reference to the accompanying drawing, in which:-
Figure 1 is a sectional elevation of a door having my invention applied to it;
and
:
Figure 2 is a sectional end elevation of the same the section being on the
line 2-2 of Figure 1.
a is the door, bis the post to which the door is hinged and c is the floor or sill
beneath the door when the latter is closed.
d is the groove in the bottom of the door in which my apparatus is placed,
the said groove, as shewn, being provided with side plates e, e of metal which form
the base-plate. f is the bar which is fitted into and is capable of sliding vertically
in the said base-plate, the said bar, as shewn, being grooved and provided with
a filling y of felt, india-rubber or other suitable material.
h is a bell-cranked lever mounted in the base-plate and one arm of which is
pivoted to a lug on the bar f whilst the other arm has pivoted to it one end of
a rod which extends towards the hinged edge of the door, the other end having
screwed on to it the adjusting nut which is preferably of square section; this
nut works through a hole in a guide plate 7.
With this arrangement it will be understood that when the door is closed the
nut will impinge against the door post b and so cause the inward movement of
the rod and the consequent downward movement of the bar f to press the
filling into contact with the floor or sill. It will be obvious that the extent of
this downward movement can be varied by causing the nut to projèct more or
less, this adjustment of the nut can be effected by taking off the plate and turning
the nut in one or the other direction as required, the plate when replaced serving
to prevent the nut from rotating on the rod. m is a plate or stop secured to the
door post and against which the nut & impinges when the door is closed.
n is a spring which at one end bears against the fixed partition o in the base-
plate and at the other end against a nut or washer upon the rod the said spring
serving when the door is opened to move the rod j to lift the bar f into the groove d.

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. A draught excluder consisting of a bar adapted to slide in a suitable groove
or base-plate formed or fixed in the bottom edge of a door, the said bar being
arranged in connection with a sliding piece projecting through the hinged edge
of the door in such a manner that when on the closing of the door the said sliding
piece impinges against the door frame the said bar will be depressed, substan-
tially as described.
2. In a draught excluder adapted to move vertically in a groove formed in the
bottom edge of the door, the arrangement of a rod connected at one end to a lever
also connected to the bar and at the other end carrying a nut which projects
through a guide plate the said nut being adjustable, when the guide plate is
removed, for the purpose of regulating the extent to which it projects beyond the
edge of the door, substantially as, and for the purpose, described.
3. The manufacture and use of draught excluders adapted to be applied to doors,
substantially as hereinbefore described and illustrated in the accompanying
drawing.
1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.