Doors, Meeting Rails of Windows, and such like Joints.
Year: 1887

page_text: Date of Application, 21st Sept., 1887
Specification Accepted, 21st Oct., 188?
Doors, Meeting Rails of Windows, and such like Joints.
I, SYDNEY PITT of Sutton in the County of Surrey Gentleman (a communication
from Paul P. Negroponte of 19 William Street in the City County and State of New
York U.S.A. Importer and Exporter) 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 :-
I am aware that various elastic strips have been used for the purpose of preventing
the passage of draughts &c. between joints, but I am not aware that revolving strips
so arranged that they can assume any desirable angle, to conform to the inequalities
of surfaces have ever before my invention been devised or used. My invention is
designed to accomplish this and to this end it consists in certain mechanical devices
and parts fully set forth and claimed, at the end of this specification and schedule.
In order that persons skilled in the art may construct, use and thoroughly understand
my invention I will proceed to describe it referring to the drawings herewith, in
which Figure 1 is a vertical longitudinal part section of my invention applied to the
bottom rail of a door.
Figure 2 is an end view of the same.
The invention is shown applied to a door-A is the door, B is the door post, E is
the lower hinge, D is a spring secured in a recess cut in the lower rail of the door,
by a screw I. This spring shown flat and extending endwise, and bent angularly
to provide bearings, for the ends of the axle rod H to take into for support and motion.
Jis the door sill or floor line as the case may be, against which the spring D presses
the rod H, covered by roller C. This roller C, extends upon rod H, on which it turns,
from end to end of the slot in the bottom rail, between the end bearings, in spring D
and is of suitable diameter to about fill the width of the slot or recess aforesaid.
The drawing shows the roll C subdivided into shorter rolls F and composite in
character, the centre portion of each roll being provided with a centre part G made
of some elastic substance, the outer shell being made either rigid or felt treated to
resist moisture, and able to receive slight compression.

page_text: These rolls F which compose the whole roll C, are not fitted tightly upon axle H,
but are made loose enough to turn upon it when in action, axle H, also is made to
turn in the end bearings in spring D, so that the whole roll C may revolve as a unit
or by its separate sections according to circumstances and that they may lift over
minor obstructions on the sill or floor J. The elastic centre pieces in each roll F
allow of this action, in addition to the action of spring D, on the roll C as a whole,
that is the spring D allows the whole roll C to assume any angle, as to the sill or floor,
and the elastic centres G of rolls F allow each roll F, to assume any angle individually
or to lift over any minor obstruction or unevenness, of course the resistance of the
elastic cores of F, will be made less than the greater elasticity of spring D. To still
further provide for smaller inequalities, I make sometimes, the outer shell of rolls F
of some impressionable substance but usually this is not needed, a substantially hard
shell being all that is needed.
The operation of my invention will be clearly understood from the preceding
description when the roller C as a whole or any of its subdivisions, in moving over the
floor or sill comes to an angular surface the spring D yields and allows the roll to
assume an angle to correspond, always keeping the roll in contact with said floor
surface, to prevent wind or, draughts to pass between them.
To windows and other places where one member moves past another, the same
general features of my invention are maintained, and. the method of adaptation will
be obvious to skilled mechanics.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed 1 declare that what
I claim is―
1st. The combination substantially as herein before set forth of the spring D, the
axle H, and the roll C, mounted upon axle H, the whole arranged to operate
substantially as and for the purposes described.
2nd. In a weather strip the combination with the axle H of the series of rolls F,
provided with elastic centres G and mounted upon axle H, so as to revolve thereon
and the spring D, all arranged to operate substantially as herein before set forth.
3rd. The roll with or without its subdivision the axle H and its spring D arranged
to operate as herein before described, with the door A, all combined to operate
substantially as herein before set forth.
Dated this 21st day of September 1887.
CARPMAEL & Co.,
Agents for the Applicant.