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Патент USA US3049759

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Aug. 21, 1962
D. c. MCDONALD
3,049,747
_
HINGE
Filed Feb. 25, 1960
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INVENTOR.
DAVID c. McDONALD
’
ATTORNEY
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United States
free
3,M9,747
Patented Aug. 21, 1962
3
2
3,949,747
stop and the door and illustrating the ?rst step in the
installation of the door hinge of the present invention.
David C. McDonald, 1385 Alhambra Circle,
Coral Gables, Fla.
Filed Feb. 25, 1950, Ser. No. 11,051
2 Claims. (Cl. 16-135)
The present invention relates to hinges, and more par
ticularly, to an improved door hinge which can be very
FIG. 6 is a View similar to FIG. 5 and illustrates the
second step in the installation of the door hinge of the
present invention.
It will be understood for purposes of simplicity and
clarity (that although at least two hinges are commonly
employed in hanging a door, which are usually of iden
tical construction) the following description refers main
10 ly to only one of the improved door-hinges of the present
readily installed and is reliable in operation.
invention and the installation thereof. With speci?c ref
Heretofore conventional door hinges of the butt type
have been used for the mounting of a door in a doorway.
In order to install such door hinges of the butt type, both
the stile of the door and the jamb of the doorway must be
mortised to receive the hinge section of each door hinge
which is used to permit the pivotable movement of the
door with respect to the doorway. On the ordinary
erence to the form of the present invention illustrated
in the drawings, and referring particularly to FIGS. 1
and 2, a substantially straight hinge section of the im
proved door hinge is indicated generally by the reference
numeral 10 and as shown is made from round bar
stock. This straight hinge section 10' has a half-round
double hinged door this requires, of course, four mortises
body portion 12 which is provided with a flat bearing
and, in addition the installation of four wood screws
in the screw apertures in each of the four hinge sections.
surface 15 and terminates at the upper end, as viewed
This mortising operation and the operation of installing
the hinge sections in the mortises by screws are compli
cated and time consuming and at present day high labor
costs result in expensive door installation.
It is the general object of the present invention to avoid
and overcome the foregoing and other dif?culties of
and objections to prior art practices by the provision of
an improved door hinge which eliminates the mortising
of the door stile and the door jamb of the doorway and
in FIGS. 1 and 2, in a hub portion 14, which hub portion
14 is provided with a pivot-pin hole. The other end of
the half-round body portion 12 terminates in a shoulder
16 formed by the junction of the half-round body portion
12; with a round shank portion 18.
This round shank
portion 18 is provided with a plurality of, for example,
two nail-receiving apertures 19 which extend transversely
through the round shank portion 18 perpendicular to the
longitudinal axis of the straight hinge section 10.
As shown in FIGS. 1 and 2, a right-angle hinge section
Another object of the present invention is the pro
vision of an improved door hinge which is simple in
of the improved door hinge of the present invention is
indicated generally by the reference numeral 20. This
right-angle hinge section 20 has a half-round body por
tion 22 having a ?at bearing surface 25 and provided at
structure, is comparable in manufacturing costs to a
conventional door hinge of the butt type and is readily
installed without complicated tools or prior carpentry
one end thereof with an upstanding hub portion 24
which contains a suitable pivot-pin hole. The other end
of the half-round body portion 22 carries a round shank
the use of screws for installing the hinge sections in the
mortises.
portion 28 which is disposed perpendicular to the half
round body portion 22. In order to complete the as
Still another object of the present invention is the
sembly of the improved door hinge of the present in
provision of an improved door hinge which when in
49 vention, the hinge sections 10 and 20 are assembled as
stalled prevents sagging of the door.
shown in FIG. 1, with the pivot pin holes in the hub
The aforesaid objects of the present invention, and
portions 14 and 24 in registry and a pivot pin or pintle
other objects which will become apparent as the de
30 inserted thereinto.
scription proceeds, are achieved by providing a door hinge
comprising a straight hinge section having a ?rst ?at bear
Method of Installation
ing surface and a ?rst shank portion extending from this 45
As
shown
in
FIG.
5, the ?rst step in the installation of
?rst ?at bearing sufrace for insertion into and secure
the above described door hinge comprises positioning
ment to the doorway, a right-angle hinge section having
experience.
a second flat bearing surface and a second shank portion
the edge of a stile 32 ‘of a door 34 (which stile 32 is to
FIG. 3 is a horizontal-sectional View of one side of a
‘ permitting the hole 46 to extend into the door stop 44
about Ma".
receive the right-angle hinge section 20) against a door
projecting at right angles from the second flat bearing sur
face and operable to be inserted into and secured to the 50 jamb 36, with one side face 38 (FIG. 5) of the door 34
in registry with a side ‘face 44} of the door jamb 36 and
door, and means for connecting the right-angle hinge
with a side face 42 of the stile 32 resting against a door
section to the straight hinge section to permit the second
stop 44. In preparation for the drilling operation, the
?at bearing surface to ride oif and onto the ?rst ?at
door 34 is wedged in the doorway in the position shown
bearing surface as the door opens and closes.
in FIG. 5 by any suitable means.
For a better understanding of the present invention
Utilizing a conventional drill, which may be assumed
reference should be had to the accompanying drawings,
to be % inch, and conventional drill guide means, a
wherein like numerals of reference indicate similar parts
hole 46' (FIG. 5) is then provided perpendicular to the
throughout the several ‘views and wherein:
side face 40 of the door jamb 36 and side face 38 of the
iFIG. 1 is a perspective view of the improved door
door 34 (along a centerline A—A), so that one-half of
hinge of the present invention in the “closed” position; 60 the
hole 46 is made in the door jamb 36 and the other
FIG. 2 is a view similar to FIG. 1, but showing the
half extends through he stile 32 of the door and into the
improved door hinge of the present invention in the
door stop 44. This hole 46 desirably has a depth “d1,”
“open” position;
which for purposes of illustration may be 2%", thus
doorway in which one hinge section of the improved
door hinge of the present invention has been installed and
a door in which the other hinge section has been installed,
with the door being shown in the “closed” position;
"FIG. 4 is a view similar to FIG. 3, showing the door
in the “open” position;
FIG. 5 is a top-elevational view of a door jamb, door
The door 34 is then removed ‘from the doorway and
disposed in a position similar to that shown in FIG. 6
to permit the drilling of a hole 48 having a depth “d2”
(along the center line B—B) and extending into the stile
32 of such door 34. Such hole 48 (having an assumed
diameter of SVs”) is transverse or perpendicular to the
3,oa9,747
4
3
hinges of the butt type. Further, such door hinge is
semi-circular hole in the stile 32 of the door 34. The
depth “d2” of such hole 48v may for illustrative purposes
sturdy in construction, and when installed in the manner
herein described will maintain the door against sagging.
be about 2". To complete the drilling operation a hole
While in accordance with the patent statutes a pre
50 may be provided, if desired, in the door stop 44,
ferred embodiment of the present invention has been
which hole 50 will later register with the lower nail-re
illustrated and described in detail, it is to be particularly
ceiving aperture 19, as viewed in FIG. 3.
The straight hinge section 10 of the now disassembled
understood that the invention is not limited thereto or
thereby.
door hinge is then driven through the semi-circular hole
1 claim:
in the door jam-b 36 (FIG. 4) and into the round hole
1. A door hinge for the pivotal mounting of a door
46 formed between the door jamb 36 and door stop 44 10
in a door jamb comprising a straight hinge section formed
and with the ?at bearing surface 15 of the half-round
of round bar stock and having a substantial part of its
hole 46 formed between the door jamb 36 and door
stop 44 and with the ?at bearing surface 15 of the half
round body portion 12 “up” and substantially parallel
length cut away to form a hemispherical portion provid
ing a ?at longitudinal surface, means disposed trans
to the top face of the door jamb 36 and with the shoul 15 versely of the round portion of said section for securing
the latter into a door jamb, a right-angle hinge section
der 16 projecting beyond the door stop 44. While the
also formed of round bar stock and having one leg thereof
straight hinge section 10 is in this position, a nail 52 is
cut away to form a hemispherical portion with a ?at
hammered through the hole 50 and the now-registering
surface of substantially the same size and con?guration
lower nail-receiving aperture 19 and also through the
as the flat longitudinal surface of said straight hinge
other nail-receiving aperture 19 and into a stud 54 (which
section and the remaining round leg of said right angle
supports the door jamb 36) to secure the straight hinge
hinge section being insertable into and securable to the
section 10 in the position shown in FIG. 3.
door edge which abuts the jamb, and a pintle passing
The round shank portion 28 of the right-angle hinge
through the outer end of the hemispherical portion of
section 20 is now driven into the hole 48 in the stile 32
so that the shoulder 26 is desirably ?ush with the edge 25 each hinge section to pivotally connect them together and
cause said hemispherical portions to overlie with their
?at longitudinal surfaces engaging each other in the
closed position of said door in the door jamb.
tion 22 is “down” and substantially parallel to the top
2. A door hinge for the pivotal mounting of a door
edge of the stile 32.
By repositioning the door 34 with respect to the door 30 in a door jamb comprising a straight hinge section formed
of round bar stock and having a substantial part of its
jamb 36 and door stop ‘44, as shown in FIG. 3, with the
length cut away to form a hemispherical portion pro
?at bearing surface 25 resting on the ?at bearing surface
viding a ?at longitudinal surface, an opening extending
15 and with the pivot-pin holes in the hub portions 14
transversely of the round portion of said section for
and 24 in registry, the pivot pin 30 may be inserted
into said pivot-pin holes. To complete the installation . securing the latter into a door jamb, a right angle hinge
of the stile 32 of such door 34 and so that the ?at bearing
surface 25 on the underside of the half-round body por
of the door 34 in the doorway one or more door hinges
section also formed of round bar stock and having one
are similarly installed and thereafter the door 34 is
leg thereof cut away to form a hemispherical portion
manually pivotable from the “closed” position (shown
in FIG. 3) to the “open” position (shown in \FIG. 4),
with a flat surface of substantially the same size and
con?guration as the ?at longitudinal surface of said
as the flat bearing surfaces 25 ride 01f the ?at bearing
surfaces 15.
It will be understood by those skilled in the art that
the above-described construction of the improved door
hinge of the present invention causes the ?at bearing
surface 25 on the half-round body portion 22 to bear
fully on the ?at bearing surface 15 of the half-round
straight hinge section and having an upstanding hub at
its outer end, and the remaining round leg of said right
angle hinge section being insertable into vand secuirable
to the door edge which abuts the jamb, and a pintle
passing through said hub and the outer end of the hemi
spherical portion of each hinge section to pivotally con
nect them together and cause said hemispherical portions
to overlie with their ?at longitudinal surfaces in mating
engagement with each other in the closed position of the
door in the door jamb.
body portion 12, when the door 34 is closed.
Further, the upper quarter-round portion 56 (FIG.
6) of the half-hole provided in the stile 32 of the door
34 assists in preventing ‘the round shank portion 28 of the
door hinge from rotating and the door 34 from sagging
when the door 34 is opened (FIG. 4). Likewise it is
obvious that the quarter-round portion of the half-hole
in the door jamb 36 aids in ‘further supporting the
straight hinge section 10 and the door supported thereby.
‘It will be recognized by those skilled in the art that
the objects of the present invention have been achieved
by the provision of an improved door hinge which elimi
nates the 'mortising of the door jamb of the doorway
References Cited in the ?le of this patent
UNITED STATES PATENTS
210,686
238,320
586,663
968,473
1,821,606
2,069,756
and the door stile and further eliminates the use of screws 60
for installing the hinge sections in the mortises. Such
improved door hinge is simple in structure, is readily
installed without carpentry experience or complicated
tools, and is comparable in cost to conventional door
Grif?n ______________ __ Dec. 10, 1878
Adams ______________ __ Mar. 1, 1881
Hubbard ___________ __ July 20, 1897
Hardy ______________ __ Aug. 23, 1910
Anderson ____________ __ Sept. 1, 1931
Glancy et a1. __________ __ Feb. 9, 1937
FOREIGN PATENTS
757,864
Great Britain ________ __ Sept. 26, 1956
1,177,698
France ______________ __ Dec. 1, 1958
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