Improvements in Jambs for Doors and Windows.
Year: 1892

page_text: te of Application. 18th Oct.. 1892-Accented. 17th Dec.. 1892
COMPLETE SPECIFICATION.
Improvements in Jambs for Doors and Windows.
I, MATHIAS CLASSEN, of Kalamazoo, in the County of Madison, and State of
Nebraska, United States of America, Gentleman, 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 :-
The invention relates to improvements in jambs for doors and windows.
The object for the present invention is to provide an adjustable cushion-jamb for
doors and windows, adapted to fit closely to a door or window to exclude the air
and to prevent a door or window binding by reason of swelling of the parts, or the
like.
The invention consists in the construction and novel combination and arrange-
ment of parts hereinafter fully described, illustrated in the accompanying drawings
and pointed out in the claims hereto appended.
In the drawings:-
Figure 1 is a horizontal sectional view of a portion of a door provided with a
jamb embodying the invention.
Fig. 2 is a vertical sectional view.
Fig. 3 is a detail sectional view.
Fig. 4 is a horizontal sectional view of a portion of a window constructed in
accordance with this invention.
Like numerals of reference indicate corresponding parts in all the figures of the
invention.
1 designates a jamb-strip which has its inner edge 2 oppositely-beveled, and
which is secured to a door-frame by hinges 3 arranged at the inner edge 2, and
permitting the jamb-strip to move inward or outward to adjust itself to a door.
The jamb-strip is held in contact with the adjacent edge of a door when the
latter is closed by spiral springs 4 interposed between the strip and the adjacent
portion of the door-frame, whereby the jamb-strip is cushioned. The inner edge of
the jamb-strip is covered and the hinges are concealed and protected by an abutting-
strip 5, which is secured to the door-frame and projects over the inner edge of the
jamb-strip. The frame-strip 6 has its edge 7 beveled to protect the jamb-strip
from injury in case the door should swell, sag, or the like.
In Fig. 4 of the accompanying drawing is illustrated a modification of the
invention especially designed for railway-car windows.
When used on windows,
a jamb-strip is arranged at both sides of the window-frame and hinges are not
employed, but a double row of springs is provided. The jambs, when employed on
windows prevent them from sticking, and besides excluding the air also serve to
hold the windows at any desired adjustment and thereby dispense with the usual
catches employed for this purpose.
The jamb-strip and the door are protected by plates 8 and 9 secured respectively
to the jamb-strip and the door and projecting slightly from those parts and adapted
to bear against each other when the door is closed. The plates are arranged at
intervals on the door as shown, and the inner edge 10 of the plate 9 and the outer
edge 11 of the plate 8 are beveled and are adapted to facilitate the closing of the
door. The projecting faces of the plates bear against each other and prevent the
edge of the door coming in contact with the strip and thereby avoid injury to either
the door or the strip.
The jamb-strip 1 of both the door and the window is provided with a series of
openings 12 extending inward from the outer edge of the jamb-strip and receiving
screws 13 which pass through the casing and limit the outward movement of the
jamb-strip to prevent strong springs from forcing the jamb-strip out too far and the
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page_text: holes or openings 12 are of sufficient size to permit the jamb-strip a limited
movement.
To prevent the screws wearing the jamb-strip by the springs continually exerting
their pressure and forcing the jamb-strip against the screws triangular plates 14
are arranged in the openings or holes 12 at the inner side thereof to form metal
bearing faces which are held in contact with the screws by the springs. This con-
struction while it prevents the jamb-strip being moved out too far when a door or
window shrinks it also relieves the strip from too much pressure should beavy springs
be employed.
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. The combination with a frame, of a jamb-strip having its inner edge attached
to the frame by hinges, springs interposed between the jamb-strip and the frame,
and an abutting-strip secured to the frame and projecting over the inner edge of the
jamb-strip and serving to conceal and protect the hinges and the inner end of the
jamb-strip, substantially as described.
2. The combination with a frame, of an elastic jamb-strip hinged to the frame, a
plate secured to the outer face of the jamb-strip and projecting slightly from it and
having its outer end beveled, and a plate designed to be secured to a door and having
its inner end beveled, substantially as described.
3. The combination with a frame, of a jamb-strip provided with openings, springs
for pressing the jamb-strip outward, and screws secured in the frame and arranged
in said openings and limiting the outward movement of the jamb-strip, substantially
as described.
4. The combination with a frame, of a jamb-strip provided with openings, springs
for pressing the jamb-strip outward, the triangular plates arranged at the inner sides
of the openings, and screws secured in the frame and arranged in the openings and
limiting the outward movement of the jamb-strip, substantially as described.
Dated this 18th day of October 1892.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.