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Патент USA US2118942

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May 31, 1938.
A, ‘:1 PRESCOTT
, 2,118,942
DOOR
Filed July 13, 1932
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i292
INVENTOR
ARTHURT. PRESCOTT.
BY
WLTTORNE 8
(3'
May 31, 1938.
A. 'r. PRESCOTT
DOOR
2,118,942
Filed July 15,1932
' 3 Sheets-Sheet 2 .
r9!3-
Ilru-L
In;
.
INVENTOR
_
ARTH UR T. PRzscoTT.
BY
MJL
ATTORNEYS I
May 31, 1938.
A. 'r. PRESCOTT
’
2,1 18,942
DOOR
Filed July 13, 1932
3 Sheets-Sheet 3
A,
10/1
Lw\ >
INVENTOR
-
ARTHUR T. PRESCOTT. '
BY
JIM
ATTORNEYS
2,118,942
Patented May 31, 1938
UNiTED STATES ‘PATENT OFFICE
2,118,942
DOOR ’
Arthur T. Prescott, East Orange, N. J., assignor to
Ralph E. Ogden, Mountainville, N. Y.
Application July 13, 1982, Serial No. 622,172
26 Claims. (Cl. 20-49)
This invention relates to improvements in
doors and particularly to such doors as are used
to close large doorway openings in pier sheds,
warehouses and the like.
Its object is to provide with a sectional door
which is adapted for opening a part or all of the
doorway, an independently movable lower section
which may be raised with the adjacent section to
open the doorway, or which may be left in posi
10 tion to form a barrier across the lower part of
the doorway when the other sections are moved
to open the rest of the doorway. The invention
is adaptable to sectional doors of the turn-over
type which are easily operated, occupy but little
15 space when passing through the opening and
closing movement and are readily used for open
ing the lower part only of the doorway.
Further objects of the invention will appear in
the following description.
Fig. l is a sectional end elevation of a sec
tional turn-over door constructed to embody this
invention, the door sections being shown in their
closed positions;
Fig. 2 is a front elevation of the lower part of
25 the structure shown in Fig. 1;
Fig. 3 is a side elevation of the latch mecha
nism in its released position;
7 Figs. 4 and 5 are sectional plan views taken
(
on the lines 4—4 and 5—5 of Fig. 1 respectively;
Fig. 6 is a sectional end elevation of the parts
illustrated in Fig. 1 in a partly open position;
Fig. '7 is a sectional end elevation showing the
lower door section in its barrier forming position
and the other door sections raised to a higher
elevation than that in which they are shown in
Fig. 6;
Fig. 8 is a sectional end elevation of this inven
tion applied to a different type of door;
Fig. 9 is a similar view showing a still further
modi?cation;
Fig. 10 is a- front elevation of a part of the low
er portion of the structure shown in Fig. 9;
In the drawings, Ill designates an upper door
section which is supported by links H pivoted to
the sides of the upper door section at l2 and to
points it above the door header l4. l5 are
guides on opposite edges of the upper door sec
tion. Rollers I6 are mounted on the lower cor
ners of this upper door section, to run on the ver
tical lintels ll of the doorway.
2|] is an intermediate door section which is
adapted to be raised into the guides !5 of the
upper door section. Struts 2| extend downward
ly from opposite sides of this intermediate door
section and its lower edge is grooved, as at 22.
When the door is fully closed, the struts 2| run
down into stationary guides 23 at opposite sides
of the doorway. 24 designates a lifting chain or
cable which runs from a point 25 on the struts
2|, over a sheave 26 above the door header to a
counterweight 21. A similar chain or cable is
a?ixed to the opposite part of the intermediate
door section.
Thellower endof struts 2| are the only parts of
the intermediate door section which have a ver 10
tical movement throughout the opening and
closing of the door and the lifting chains or cables
24 are connected thereto at the points 25 near
their lower ends so that these chains or cables
have substantially no lateral movement. These
struts 2| of the intermediate door section extend
down to the threshold of the door opening when
thedoor is closed. Consequently, they may serve
to arrest the downward movement of this inter
mediate door section and to support its weight
when the door is closed.
3|] designates a lower door or barrier section,
between the struts 2|. Its upper edge is provided
with a tongue 13| which ?ts into the groove 22 in
the upper edge of the intermediate door section. 25
32 is a lifting chain or cable which runs from a
bracket 33 a?ixed to this barrier section over a
sheave 34 above the door header to a counter
weight .35. The barrier section maybe of light
construction as it is not depended upon to sup
port the intermediate door section.
46 is a rod transversely mounted across the
lower part of the intermediate door section.
Latches 4| are affixed to this rod, spaced apart
as shown in Fig. 2. These latches are pressed to
the positions in which they are shown in Figs. 1,
6 and 7 by a spring 42 against stops 43. 44 is a
lever also affixed to rod 40 by which the latches
may be moved against the action of the spring to
the position in which they are shown in Fig. 3 at 40
4|A. I-Iooks 45 are a?ixed to the barrier section
30 in line with the latches 4|.
‘ Before speci?cally describing the structures
shown in the other ?gures of the drawings, we
Will point out the operation'of the parts so far 45
described. The intermediate door section 20 may
be raised by an upwardpull on the chain or cable
24 from the position in which it is shown in
Fig. 1 to that in which it is shown in Fig. 6 where
the movement of the intermediate door section 50
relative to the upper door section is arrested by
a stop l9 across the struts 2| coming in contact
with thelower edge of the upper door section.
The upwardmovement will cause latches 4| to
engage the hooks .45 and cause the barrier section f
2,118,942
to be raised with the intermediate door section
so that the three door sections will occupy the Fig.
6 positions. A further upward movement of the
chain or cable 24 will cause the upper door sec
tion and the section or sections which overlie it
to swing inwardly on the links I l to the position,
shown in Fig. 7 and ?nally to a substantially
horizontal position. During these movements
the counterweights 21 and 35 will keep the parts
10
balanced.
'
This operation, when the intermediate and bar
rier sections are locked together, is substantially
the same as and has the advantages of a turn
over door, such as is shown in Patent No.
973,691, issued to the late J. Edward Ogden,
October 25, 1910.
According to this invention, the latches 4|
may be released, as shown in Fig. 3, before the
lifting operation is started so that the interme
20 diate door section 29 will be raised without mov
ing the lower door section. The latter will be left
in the guides 23, as shown in Fig. '7 to form a
barrier across the doorway. The guides 23 thus
act as supports for the barrier section when the
25 door is in closed position or when the barrier sec
tion is left in closed position and the rest of the
door is open as in Fig. 7. This is particularly
desirable in pier sheds where people are guarded
by the barrier thus formed by the lower door
section. In the latter operation the counter
Weight 21 will balance the moving parts. When
the barrier section 30 is raised, the counterweight
35 assists in balancing the moving parts.
In the structure shown in Fig. 8 the upper,
intermediate and barrier sections [0A, 20A and
30A and their interconnections are similar to
those shown in the preceding ?gures, but in this
case the upper door section is hinged to the lintel,
as at 50 and it, with the intermediate door or with
the intermediate and the barrier sections on it
may be swung, as indicated by broken lines to the
fully open position.
The structure shown in Figs 9 and 10 differs
from that shown in Fig. 8 in that the section 293
which slides on the upper section IDA, extends
down to the threshold of the doorway and the sec
tion 363 overlaps section 203 except when it is
left behind as a barrier.
In this construction the
section 30B is wider than section 20B and rests
in stationary guides 23A when it is in its lower
most position. In its upper edge are slots 36
which register with pins 28 projecting from the
door section 203 to hold these parts in lateral
alinement.
The operation of the arrangements shown in
Figs. 8 to 10 is obvious from the former descrip
tion. Several modi?cations have been illustrated
and described to show that the invention is
capable of wide modi?cation. I, therefore, in
tend no limitations other than those imposed by
the appended claims.
What I claim is:
1. A door comprising an upper section, links
connecting the edges thereof to ?xed points above
65 said section, an intermediate section arranged to
slide on the upper section to overlie the same and
to be swung by said links with the upper section
in opening and closing, struts extending down
connecting the edges thereof to ?xed points above
said section, an intermediate section arranged
to slide on the upper section to overlie the same
and to be swung by said links with the upper sec
tion in opening and closing, struts extending 5
downwardly from the edges of said intermediate
section, an independent barrier section to close
the space between said struts, means for causing
the sliding movement of the intermediate sec
tion in closing to lock the barrier section to 10
itself, manual means for releasing said look, a
counterweight connected to said struts, and a
counterweight connected to said barrier section.
3. A door comprising an upper section, links
connecting the edges thereof to ?xed points above 15
said section, an intermediate section arranged
to slide on the upper section to overlie the same
and to be swung by said links with the upper sec
tion in opening and closing, a latch on said inter
mediate section, struts extending downwardly 20
from the edges of said intermediate section, an
independent barrier section to close the space
between said struts, a hook on said barrier section,
means for causing the sliding movement of the
intermediate section in closing to pass said latch 25
into engaging position with the hook, and manual
means for moving the latch out of its hook en
gaging position.
4. A door comprising an upper section, links
connecting the edges thereof to fixed points above 30
said section, an intermediate section arranged
to slide on the upper section to overlie the same
and to be swung by said links with the upper sec
tion in opening and closing, a latch on said inter
mediate section, struts extending downwardly 35
from the edges of said intermediate section, an
independent barrier to close the space between
said struts, a hook on said barrier section, means
for causing the sliding movement of the inter
mediate section in closing to pass said latch into 40
engaging position‘ with the hook, manual means
for moving the latch out of its hook engaging po
sition, a counterweight connected to said struts,
and a counterweight connected to said barrier
section.
'
.
5. A door comprising an upper section,'links
connecting the edges thereof to ?xed points above
said section, an intermediate section arranged to
slide on the upper section to overlie the same and
to be swung by said links with the upper section 50
in opening and closing, a latch on the face of said
intermediate section, struts extending downward
ly from the edges of said intermediate section, an
independent barrier section to close the space
between said struts, a tongue on the upper edge
of the barrier section, a groove in the lower edge
of the intermediate section, a hook on the face of
the barrier section, means for causing the sliding
movement of the intermediate section in closing
to pass said latch into engaging position with 60
said hook, manual means for moving the latch
out of its hook engaging position, a counterweight
connected to the lower part of said struts, and a
counterweight connected to the lower part of said
barrier section.
.
65
6. A door comprising an upper section, links
connecting the edges thereof to ?xed points above
said section, an intermediate section arranged to
slide on the upper section to overlie the same and
wardly from the edges of said intermediate sec
tion, an independent barrier section to close the
space between said struts, means for causing the
sliding movement of the intermediate section in
to be swung by said links with the upper section 70
in opening and closing, a latch on said inter
closing to lock the barrier section to itself, and
from the edges of said intermediate section, an
independent barrier section to close the space be
manual means for releasing said lock.
75
2. A door comprising an upper section, links
mediate section, struts extending downwardly
tween said struts, stationary guides at the edges 75
2,118,942
11. A door comprising “an upper section, an
of the door opening for receiving the struts on
the edges of the intermediate section, a hook
on said barrier section, means for ‘causing the
sliding movement of the intermediate section in
intermediate section arranged to slide on the
upper section to overlie the same, means for
swinging said upper and intermediate sections to
closing to pass-said latch into engaging position
gether in opening and closing, struts extending
with the hook, and means for moving the latch out
'7. A door comprising an upper section, links
connecting the edges thereof to ?xed points above
said section, an intermediate section arranged to
downwardly from the edges of the intermediate
section, lifting means attached to the lower ends
of said struts at points having substantially ver
tical movements, a barrier section, means for
supporting said barrier section below the inter 10
slide on the upper section to overlie the same and
mediate section across the door opening, means
to be swung by said links. with the upper section
in opening and closing, a latch on said inter
for causing the sliding movement of the inter
mediate section in closing to lock the barrier sec
tion to itself, and manual means for releasing
15
said lock.
12. A door comprising an upper section, an-in
termediate section arranged to slide on the upper
section and to overlie the upper portion thereof,
means for swinging said upper and intermediate
sections together when the intermediate section 20
overlies the upper section, a barrier section,
means for supporting said barrier section below
the intermediate section, and means for selec
of its hook engaging position.
mediate section, struts extending downwardly
15 from the edges of said intermediate section, an
independent barrier section to close the space be
tween said struts, stationary guides at the edges
of the door opening for receiving the struts on
the edges of the intermediate section, a hook on
said barrier section, means for causing the slid
ing movement of the intermediate section in clos
ing to pass said latch into engaging position with
the hook, manual means for moving the latch out
of its hook engaging position, a counterweight
connected to said struts, and a counterweight
connected to said barrier section.
8. A door comprising an upper section, an inter
mediate section arranged to slide on the upper
section, to overlie the same, means for swinging
30 said upper and intermediate sections together in
opening and closing, a latch on said intermediate
section, struts extending downwardly from the
edges of said intermediate section, an independ
ent barrier section below said intermediate sec
tion to close the space between the struts, sta
tionaryguides at the edges of the door opening for
receiving the struts on the edges of the inter
mediate section, a hook on said barrier section,
means for causing the sliding movement of the
intermediate section in closing to pass said latch
into engaging position with the hook, and means
for moving the latch out of its hook engaging po
sition.
9. A door comprising an upper section, an
intermediate section arranged to slide on the
upper section, to overlie the same, means for
swinging said upper and intermediate sections to
gether in opening and closing, a latch on said
intermediate section, struts extending down
wardly from the edges of said intermediate sec
tion, an independent barrier section below said
intermediate section to close the space between
the struts, stationary guides at the edges of the
door opening for receiving the struts on the edges
of the intermediate section, a hook on said bar
rier section, means for causing the sliding move
ment of the intermediate section in closing to
pass said latch into engaging position with the
hook, manual means for moving the latch out
60 of its hook engaging position, a counterweight
connected to said struts and a counterweight con
nected to said barrier section.
10. A door comprising an upper section, an
intermediate section arranged to- slide on the
upper section to overlie the same, means for
swinging said upper and intermediate sections
together in opening and closing, struts extending
downwardly from the edges of the intermediate
section, lifting means attached to the lower ends
of said struts at points having substantially ver
tical movements, a barrier section, means for sup
porting said barrier section below‘ the inter
mediate section across the door opening, and
means for selectively engaging the barrier sec
75 tion to the intermediate section.
tively engaging the barrier section with the inter
mediate section to cause it to slide therewith on 25
the upper section to overlie the lower portion
thereof.
_
,
i
_
13. A door comprising an upper section, an in
termediate section arranged to slide on the upper
section and to overlie the upper portion thereof,
means for swinging said upper and intermediate
sections together when the intermediate section
overlies the upper section, struts extending
downwardly from the edges of the intermediate
section, lifting means attached to the lower ends 35
of said struts at points having substantially ver
tical movements, a barrier section, means for sup- '
porting said barrier section below the inter
mediate section across the door opening, and
means for selectively engaging thebarrier section 40
withthe intermediate section to cause it to slide ’
therewith on the upper section to overlie the lower
portion thereof.
14. A door comprising an upper section, an in
termediate section arranged to slide on the upper 45
section and to overlie the upper portion there
of, means for swinging said upper and inter
mediate sections together when the intermediate
section overlies the upper section, struts extend
ing downwardly from the edges of the inter 50
mediate section, ‘a counterweight connected to
the lower ends of said struts at points having
substantially vertical movements, a barrier sec
tion, means for supporting said barrier section
below the intermediate section across the door ‘
opening, and means for selectively engaging the
barrier section with the intermediate section to
cause it to slide therewith on the upper section to
overlie the lower portion thereof.
15. A door comprising an upper section, an in
termediate section arranged to slide on the up
per section and to overlie the upper portion there
of, means for swinging said upper and inter
mediate sections together when the intermediate
section overlies the upper section, a barrier sec
tion, means for supporting said barrier section be
low the intermediate section, a tongue and groove
connection on adjacent edges of the barrier and
intermediate sections, a hook on the face of the
barrier section, means for causing the sliding
movement of the intermediate section in closing
to pass said latch into engaging position with
said hook whereby the initial upward movement
of the intermediate section will cause the latch
and hook to engage without separatingsaidltongue
60
4
2,118,942
and groove edges and the continued upward move
ment of the intermediate section will raise the
barrier section to a position overlying the lower
portion of the upper section.
16. A door comprising an upper section, an in
termediate section arranged to slide on the upper
section to overlie the same, means for swinging
said upper and intermediate sections together in
opening and closing, a latch on the face of said
intermediate section, struts extending downward
15
20
25
30
35
ly from the edges of said intermediate section, an
independent barrier section below said inter
mediate section, a tongue and groove construc
tion on adjacent edges of the barrier and inter
mediate sections, a hook on the face of the bar
rier section, and means for causing the sliding
movement of the intermediate section in closing
to pass said latch into engaging position with
said hook whereby the initial upward movement
of the intermediate section will cause the latch
and hook to engage without separating said
tongue and groove edges.
17. A door comprising an upper section, an in
termediate section arranged to slide on the upper
section to overlie the same, struts extending
downwardly from the edges of the intermediate
section, lifting means attached to the struts, a
barrier section, means for supporting said barrier
section below the intermediate section across the
door opening, and means for moving the barrier
section onto the upper section.
18. A door comprising an upper section, an in
termediate section arranged to slide on the upper
section and to overlie the upper portion thereof,
means for swinging said upper and intermediate
raise and move said sections laterally to open
position, and separate counterweighting means
for the barrier section,
22. A door comprising an upper section, an
intermediate section and a barrier section below
and detachably connected to the intermediate
section, said intermediate and barrier sections
being movable together to a position overlying
said upper section, said upper and overlying sec
tions being movable as a unit laterally and in 1O
wardly, and counterweighting means operable
successively to aid in lifting the intermediate sec
tion to a position overlying the upper section and
to raise and move said sections laterally to open
position, said counterweighting means being con
nected to the intermediate section and being ap
plied to the upper section adjacent the lower edge
thereof.
23. The combination with a doorway, of, a door
for said doorway including upper and lower door
sections, the lower section constituting the sole
closure for the lower part of the doorway and the
upper section closing a portion of the doorway
above that closed by the lower section when the
two sections are in their lowered position, means 25
connected to the upper section for raising and
lowering the door, means for detachably connect
ing the lower section to the upper section for
causing it to move with the upper section or per
mitting its being left across the doorway when 30
the upper section is elevated, said means auto
matically acting to cause the sections to become
coupled when brought into coacting relation, and
means for counterbalancing the lower section to
permit its being easily raised into coacting and .
sections together when the intermediate section
coupled relation to the upper section when the
overlies the upper section, a barrier section,
means for supporting said barrier section below
the intermediate section, and means for moving
40 the barrier section to cause: it to slide onto the
upper section to overlie the lower portion thereof.
latter is elevated.
24. The combination with a doorway, of a door
for said doorway including upper and lower door
sections, the lower section constituting the sole
closure for the lower part of the doorway and the
upper section closing a portion of the doorway
19. A door comprising an upper section, an in
termediate section arranged to slide on the upper
section and to overlie the upper portion thereof,
45 means for swinging said upper and intermediate
sections together when the intermediate section
overlies the upper section, a barrier section,
means for supporting said barrier section below
the intermediate section, means for moving the
50 barrier section to cause it to slide onto the upper
section to overlie the lower portion thereof, and
a counterweight for the barrier section.
20. A door comprising an upper section ar
ranged to be swung in opening and closing, an
55 intermediate section arranged to slide on the up
per section to overlie the same, struts extending
downwardly from the edges of the intermediate
section, lifting means attached to the lower ends
of said struts at points having substantially ver
tical movements, a barrier section, means for
supporting said barrier section below the inter
mediate section across the door opening, and
means for lifting the barrier section onto the
upper section.
21. A door comprising an upper section, an in
65
termediate section and a barrier section below
and detachably connected to the intermediate
section, said intermediate and barrier sections
being movable together to a position overlying
said upper section, said upper and overlying sec
tions being movable as a unit laterally and in
wardly, counterweighting means connected to
said intermediate section and operable succes
sively to aid in lifting the intermediate section
75 to a position overlying the upper section and to
above that closed by the lower section when the
two sections are in their lowered position, means
connected to the upper section for raising. and 45
lowering the door, means for detachably connect
ing the lower section to the upper section for
causing it to move with the upper section or per
mitting its being left across the doorway when
the upper section is elevated, and means for 50
counterbalancing the lower section.
25. The combination with a doorway, of a door
for said doorway including upper and lower door
sections, the lower section constituting the sole
closure for the lower part of the doorway and
the upper section closing a portion of the door
way above that closed by the lower section when
the two sections are in their lowered position,
means connected to the upper section for raising
and lowering the door, and means for detach
ably connecting the lower section to the upper
section for causing it to move with the upper sec
tion or permitting its being left across the door
way when the upper section is elevated.
26. A door including upper and lower door sec 65
tions, struts extending downwardly from the up
per section, lifting means attached to said struts,
means for detachably connecting the lower sec
tion to the upper section for causing it to move
with the upper section when attached thereto, 70
or permitting it to remain in position across the
doorway when detached from the upper section
when the upper section is raised.
ARTHUR T. PRESCOTT.
75
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