Improvements in Doors for Hospitals and other Buildings.
Year: 1899

page_text: Date of Application, 10th Jan., 1899-Accepted, 6th May,
1899
COMPLETE SPECIFICATION.
Improvements in Doors for Hospitals and other Buildings.
I, Oscar COBB, Architect, of 85, Dearborn Street, Chicago, Illinois, U.S.A., 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:
This invention relates to "storm" doors in which two or more doors are employed
in conjunction with a segmental are as part of the door casing to keep the passage
way constantly closed while permitting persons to pass in and out; and the object
of my improvements is to provide reversing or oscillating doors which may be
used at any place where a single door may be used, and are also adapted for
hospital doors or for any openings where the communication between rooms is
desired to be kept constantly closed while permitting persons to pass in and out.
I attain this object by the construction illustrated in the accompanying drawings
in which
Figure 1 represents a side elevation; Figure 2a sectional plan view; Figure 3
a sectional elevation on the line 3-3 of Fig. 2; Figure 4 a detail showing a per-
spective view of a connecting plate; and Figure 5 a sectional plan view showing a
modification in a detail of construction.
The improvement comprises a pair of doors arranged at an angle to one another
embraced by an are of the segmental portion of the casing and mounted on a single
hinge or pivot common to hoth and having stops so arranged that both of the
doors cannot be swung or turned entirely through the arc.
In the drawings A designates the wall or structure in which the passage way
is made which is provided with a casing having one side made in the form of the
are of a circle A' and adapted to fit close to the edge of the doors B as they turn
on their pivot. I prefer to attach the doors to a standard C pivotted at in the sill
and top of the casing and having its rear parts e made circular and all but
touching the door casing so as to revolve in connection therewith without pro-
ducing an opening between the standard and casing. Each of the doors is provided
with a slot or recess 6 and these slots in the respective doors are placed in different
planes or lines of the door's movement so as to operate in connection with stops b¹.
The doors are shown as hinged to the standard C at d and connected together by
metallic plates D at the top and bottom which are attached by screws or other
means whereby the plates are made readily detachable in order to permit the doors
being swung apart for opening the passage way for taking in or out large articles
as of furniture or the like.
In the modification the standard C is hinged to the casing by a double acting
spring hinge at C adapted to permit of the doors B 13 being swung in either direc-
tion and to return them to normal position, as shown in the drawing, in which
one of the doors stands near each end of the arc casing; and any of the ordinary
double acting spring hinges may be employed for this purpose.
In operation each of the doors B can swing into and away from the are casing
but not clear through it, and the person passing through the door takes hold of the
handle bar E and pulls the door out from the arc sufficiently to allow himself to pass

page_text: in between the doors but on his further progress he pushes the opposite door
outward sufficiently beyond the arc to allow himself to pass through."
The dotted lines in Fig. 2 illustrate the position of the doors with reference to
the arc side of the casing when swung out from the arc to the utmost limit in
either direction, the stops on either side operating upon the door at the opposite
end of the are to prevent it from passing out of the are.
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 consider novel and desire to claim is: —
1. The combination with the casing forming a segmental are on one side of the
opening, of the doors pivoted so as to turn on the casing at the side of the
opening opposite to the are, the doors being at an angle enclosed by the are, and
stops adapted to operate with relation to the doors and are casing substantially
as specified.
2. The combination with the casing forming a segmental arc on one side of the
opening, of the doors B B mounted on the pivoted standard, C at an angle to one
another and adapted to turn into and from the are and means for preventing them
from moving through the arc substantially as described.
3. The combination with the casing of pivoted standard C, doors B B hinged to
the standard, and a detachable connecting plate ) as and for the purpose specified.
Dated this 0th den of Tona 1900
H. 1. FITZPATRICK,
100, Wellington Street, Glasgow, Agent.
H. 1. FITZPATRICK,
100, Wellington Street, Glasgow, Agent.