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Патент USA US2127155

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Aug. 16, 1938.
l
’
J. B. CALDWELL
OVERHEAD
DOOR
Filed June 24, 1957
2,127,155
»
.2 sheets-sheet 1
ATTORNEYS
Àug. 16, 1938.
J_ B, CALDWELL
OVERHEAD
DOOR
Filed June 24, 195'?
2,127,155
'
^
.
2 sheets-sheet 2
ATTORNEYS
Patented Aug. 16, 1938
2,127,155
UNITED STATES
‘PATENT oFFicE
2,127,155
OVERHEAD DOOR
_
John B. Caldwell, Toronto, Ontario, Canada
Application June 24, 1937, Serial No. 150,175
2 Claims.
This invention relates to garage doors and op
erating means therefor and has for the primary
object the provision of means which will permit
a person with minimum effort to close and open
the door with the door assuming a position sub
stantially horizontal and adjacent the ceiling of
the garage when open and to impart a limited
vertical movement to the door when moving
from a fully closed position towards an open
position suñicient to allow the lower edge of
the door to clear obstructions such as snow, ice
or ground raised by freezing before beginning
its swinging movement to assume its horizontal
or open position.
With these and other objects in View, this in
vention consists in certain novel features of con
struction, combination and arrangement of parts
to be hereinafter more fully described and
claimed.
For a complete understanding of my invention,
reference is to be had to the following descrip
tion and accompanying drawings, in which
Figure 1 is a rear elevation, partly in section,
(Cl. 20-19)
A track I2 is mounted in the garage I for ver
tical adjustment adjacent to one of the tracks 9
and has an upwardly inclined portion. A weight
supporting rod I 3, adjustable as to length, has a
roller Ill which travels on the track I2. A coun
terbalance weight I5 is secured to the rod i3.
Cables I6 are connected onto the weight and pass
over pulleys Il adjustably mounted on the garage
and also pass over a pulley Il'. The cables after
passing over the pulleys are secured to the door
adjacent the lower edge thereof.
The lengths
of the cables are such that the counter‘oalance
weight I5 will assume a vertical position adja
cent the door when the latter is in an open posi
tion and be substantially supported by the
track I2.
Rods I8 are hinged on the door adjacent the
lower edge thereof and are slidably connected
to members IS, the latter being journaled in
brackets 26 mounted on the door frame. Stops
2| are secured on the rods I3 to abut the mem
bers I 9 after a limited sliding movement of the
rods.
Clips 22 are secured to the door torv engage fin
illustrating a garage door and an operating
means therefor.
Figure 2 is a sectional view taken on the line
gers 23 as the door assumes a substantially closed
2_2 of Figure 1.
firmly against the weather strips.
Figure 3 is a detail sectional View taken on the
line 3_3 of Figure l.
Figure 4 is a detail sectional view taken on the
line 4--4 of Figure 1.
Referring in detail to the drawings, the nu
meral I indicates a garage, 2 the doorway thereof
and 3 a door for said doorway. The door may
y be of one piece construction or double doors may
be employed and joined together by angle iron
strips, as shown at 4. However, the action will
be the same if the doors are joined or of a single
unit construction.
Therefore, the door herein
40 after will be referred to as a single unit.
The
dimension of the door is such that it will sub
stantially close the doorway but may slide and
swing through the doorway. Suitable weather
stripping 5 is carried by the door frame to co
operate with the door when the latter is in door
closing position to exclude weather elements
from the garage.
Plates 6 are secured on the door adjacent its
upper end and form mountings for axles 'I on
50 which rollers 8 are journaled. The rollers ride
upon tracks 9 mounted on the garage adjacent
the ceiling or roof thereof. The tracks 9 in
clude substantially horizontal portions IIJ and
vertical portions II. The vertical portions of
55 the tracks are arranged adjacent the doorway.
position for the purpose of holding the door
Hand grips 24 are secured on the inside and
outside of the door. In operation, assuming the
door to be in a. closed position, the operator slides
the door upwardly for a limited distance which
distance is suiiicient for the lower edge of the
door to clear any obstruction on the floor of the
garage or the driveway approaching to the ga~
rage. The operator then swings the door out- ‘
Ci
wardly, the latter pivoting on the plates 2t’ and
with the aid of the counterbalance weight the
door travels on the horizontal portions I0 of the
tracks 9, assuming la position within the garage
adjacent the ceiling so that the doorway will be
fully open. The door assuming an open posi
tion places the counterbalance weight, as shown
in dotted lines in Figure 2, which acts to main
tain the door in an open position so that to`
close the door the operator must pull outwardly
on the door. During the initial movement of the
door from its closed position, the rods I8 slide
relative to the members I9. After this limited
sliding movement of the door the stops 2| en
gage said members I9 which limits further slid
ing movement of the door and then causes said
door to swing with the plates 24’ acting as the
pivots for the door and at the same time the
door slides inwardly of the garage.
What is claimed is:
55
2
2,127,155
1. A door operating mechanism for a garage
door comprising horizontally arranged tracks
mounted in a garage adjacent the roof thereof
and including vertically arranged portions lo
cated adjacent a doorway of the garage, a door,
rollers journaled on said door and engageable
with the track, counterbalance means connected
to said door, rods journaled on said door, mem
bers journaled on the garage and slidably receiv
10 ing said rods, and stops carried by said rods to
abut said members to bring about swinging
movement of the door in combination with a
sliding movement on the tracks after said door
has been slid for a limited distance in a vertical
15 direction away from a floor of the garage.
2. A door operating mechanism for a garage
comprising a door, rollers journaled on said door,
tracks engaged by said rollers and secured to a
garage, an inclined Weight track located in the
garage and supported thereby, a Weight sup
porting rod slidable on said last-named track, a
counterbalance Weight connected on said rod,
means for connecting the weight to said door,
said ñrst-named tracks including vertical and
horizontal portions, rods journaled on said door,
members journaled on the garage and slidab‘ly
receiving said last-named rods, and stops on said 10
last-named rods and engageable with said mem
bers after a limited vertical sliding movement
of the door to cause said door` to swing and
slide along the horizontal portions of the first
named track to assume an open position Within 15
the garage.
JOHN B. CALDWELL.
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