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Патент USA US2120746

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June 14, 1938.
T. M. HAGENBOOK
PINTLE CONTROL MECHANISM FOR REVOLVING DOORS
Filed Jan. 1.5,v 1937.
2,120,746
Patented `Íune 14, 19.38
y
UNITED STATES PATENT OFFICE
2,120,746
PINTLE CONTROL MÍEÓHANISM FOR
REVOLVING DOORS
Thurloe M. Hagenbook, Evansville, Ind., assìgnor
to International Door Company, Evansville,
Ind., a corporation of Illinois
Application January 15, 1937, Serial No. 120,818
11 Claims.
My invention relates broadly to revolving doors
and more particularly toa construction of control
mechanism for the pintle of a revolving door.
One of the objects of my invention is to provide
o a construction of control mechanism for the pintle
(Cl. 20-18)
3; Fig. 7 is a transverse sectional view on line
'l--l of Fig. 3; Fig. 8 is a transverse sectional
View through the control mechanism on line 8_8
of Fig. 3*; Fig. 9 is a transverse sectional view
throughthe control mechanism on line 9_9 of C31
of a revolving door structure by which the pintle
Fig. 3, but showing the insertabl'e key in top ele
maybe readily retracted or projected for allowing
vati'on; and Fig. 10 is a cross sectional view on
the collapsing of the revolving door wings adjacent one side of the revolving door drum or the
l() journaling of the revolving door in operative' posi-
tion centrally of the revolving door drum.
Another object of my invention is to provide a
line ill-I‘iâ of Fig. 3 and illustrating the latched
device in top elevation engaged in the lower re
cess of the central tubular shaft for maintaining l0
the pintle in projected position.
Referring to the drawing in more detail, the
selectively operative spring actuated latch device
for maintaining the pintle of a revolving door in
i5 retracted or projected position.
A further object of my invention is to provide
a two-position shiftable control mechanism for
the pintle of a revolving door adapted to receive
revolving door wings are represented by reference
character l'. A cylindrical housing 2 extends over
the central tubular shaft 3, through which the 15
central shaft li extends. The pintle 5 is coupled
to central shaft ll. Pintle 5 carries at its lower
end, a headed portion t3 which is diametrically
an insertable key device engageable with the con20 trol mechanism for disengaginga spring actuated
latch and allowing the pintle to be shifted to
either retracted or projected position.
Still another object of my invention is to'pro-
slotted as indicated at 'l for engaging the dia
metrically extending member 8 in the seat 9 20
mounted centrally of the‘base of the drum of the
Vide a construction of spring actuated latch car25 ried by the pintle control mechanism of a revolving door and engageable from the housing of the
revolving door shaft for permitting the retraction
or projection of the pintle.
Other and further objects of my invention reD: O side in the construction of pintle control mechanism for revolving doors as set forth more fully
in the specification hereinafter following by reference tothe accompanying drawing in which:
Figure l is a fragmentary vertical sectional
35 view showing the pintle control mechanism
shifted tol a position projecting the pintle for
supporting the revolving door wings in rotating
position; Fig. 2 is an enlarged vertical sectionaly
view taken on line 2-2 of Fig. 3 and showing the
-lo external plate of the control mechanism in front
elevation; Fig. 3 is an enlarged fragmentary
vertical sectional view through the control mechanism with the pintle illustrated in projected
the base of the revolving door drum by means of
the journal box I0.
25
positionk preparatory to an unlatching operation
45 and raising of the pintle; Fig. 4 is a fragmentary
vertical sectional View of the pintle control
mechanism-'showing the latching device in operation and the pintle shifted from' a projected position to a retracted position and about to be
50 latched in the retracted position; Fig. 5 is an
enlarged cross sectional View illustrating the
latching device in latched position maintaining
the pintle control mechanism in retracted position; Fig. 6 is a transverse sectional view through
55 the pintle control mechanism Von line B-G of Fig.
revolving door. The seat 9 is suitably arranged
with respect to the> foundation II constituting
The lower end’ of the central tubular shaft 3
carries a concentric bushing I2 mounted in cy
lindrical recess i4 in the tubular shaft 3. 'I‘here
is a longitudinal slot l5 in the' tubular shaft 3
in a positiOn intermediate the l"PVOlVîiig (1001"
hangers, which, for the purpose of simplicity I
have not illustrated. The cylindrical housing 2
iS prOVided With a 101'1git11dí11a11y eXteIlding SlOt
I'S which is aligned with the longitudinal S10t l5
in tubular shaft 3.
A block member i7 having a Width Which
readilyv allowsv the block member Il to pass
through slot l5 in tubular shaft 3 is secured to
central shaft 4 by means of screws 2B. The block
member Il is provided with a laterally extending
IJOl‘tiOi’i i@ frOm WhiCh lugs 2| @Xtend ÍOI‘WMCUY
at opposite ends of the block member I l. There
is an intermediate recess i9 in block member Il
between the forwardly projecting lugs 2l,
An 4eSClltCileOrl plate 22, COIIÍOI‘miUg t0 the Cylindrical' contour of the cylindrical housing 2, is
connected by means of screws 23` to the forwardly
projecting lugs 2l on block member Il, so that
the plate is movable with block member Il'. The
30l
35
«i0
4:5v
longitudinal and transverse dimensions of escut- 50
cheon plate'22 are- such that the longitudinally >
extending slot i6 in cylindrical housing 2 is
always completely covered in either of the limiting
positions to which the pintle 5 may be shifted.
The block vmember Il is transversely apertured 55
2
2,120,746
for the passage of the shank 25 of latch device
24. There is a transversely extending socket 26
in central shaft 4 directly aligned with the aper
ture in block member Il through which the shank
Ul 25 of latch device 24 extends. A spring 21 is
mounted in socket 26 and tends to continuously
urge the latch device to- a projected position s0
that the head of the latch device tends to engage
either the lower recess 23 in cylindrical housing
withdraw the key from the grip or finger portion
3| thereof.
-
I have found the construction of my invention
highly practical in construction and operation,
but I realize that modifications of my invention
may be made and I desire that it be understood
that no limitations upon my invention are in
tended other than may be imposed by the scope
of the appended claims.
10 2 or the upper recess 29 in cylindrical housing 2
What I claim as new and desire toI secure by
when the block member ll is shifted to positions
in which pintle 5 is either retracted or projected.
In order to effect retraction or projection of
pintle 5, I provide a key device 3B having a head
15 or grip 3l thereon and which is adapted to be
inserted through the aperture 35 in escutcheon
plate 22 and through the passage 33 in block
Letters Patent of the United States is as follows:
1. Pintle control mechanism for a revolving
door comprising in combination with a central
tubular shaft, a housing concentrically disposed
about the shaft, said shaft and said housing hav
ing aligned longitudinal slots, a projectable and
retractible pintle controllable through the cen
member Il and through the transversely aligned
tral tubular shaft, a member connected with the
passage 32 in central shaft il. The head or grip
20 3l of the insertable key 3l) is of such diameter
pintle and having a portion thereof projecting
through the slots in the central tubular shaft and
the housing disposed about the central tubular
shaft and operable through substantially the full
length thereof, and latch mechanism carried by
said member and engageable with enlarged por
that it may readily pass through aperture 35 in
escutcheon plate 22 and slot i6 in the cylindri
cal housing 2 and be pressed inwardly for engag
ing the disc like head of latch device 2A. By
25 pressing inwardly on head 3l the disc like head
of latch 2t may be moved out of engagement
with lower recess 28 in cylindrical housing 2,
illustrated in Fig. 3, by movement of the disc
like head of latch device 24 against the yielding
30 action of spring 2l. When the disc like head of
latch device 24 is pressed inwardly out of engage
ment with the lower recess 28, the head or ñnger
grip 3l may be lifted and the control mecha
nism shifted vertically from the position illus
trated in Fig. 3 to the position illustrated in Fig.
4. By this operation pintle 5 is retracted so that
the revolving door wings may be shifted in col
lapsed relation against one wall of the revolving
door drum. The key may be maintained in po
40 sition by elevating the pintle until the upper limit
of the pintle to retracted position is reached, as
illustrated in Fig. 4 whereupon the key may be
withdrawn, allowing the disc like head of latch
device 24 to be forced by means of spring 26 to
45 a seat in the upper recess 29 in cylindrical hous
ing 2.
The pintle will then be retained in re
tracted position by positive engagement between
the disc like head of latch device 24 in the upper
recess 29 in cylindrical housing 2. The key is so
50 constructed that the shoulder Sla thereof im
mediately beneath the head 3l serves as an en
gagement means for a peripheral portion of the
disc like head of the latch device 24 for effecting
transverse displacement of the disc like head
55 against the action of spring 2l.
When it is desired to restore pintle 5 to pro
jected position, the key is again inserted through
aperture 33 in block member il and through
transverse passage 32 in shaft 4 and pressed
60 transversely, allowing shoulder Sla of the head
65
tions of the slot in said housing in either of the
limits of movement of said member for main
taining the pintle in either a projected or re
tracted position.
2. Pintle control mechanism for revolving doors
comprising incombination with the central shaft 30
of a revolving door, a pintle connected with the
central shaft, a housing disposed in spaced re
lation to said shaft and having a longitudinal slot
therein, a control mechanism operable through
said slot and substantially throughout the full
length thereof for vertically shifting the pintle
to either a retracted or a projected position with
resp-ect to the housing, and means carried by the
control mechanism and engageable with enlarged
portions of the slot in the housing for maintain 40
ing the pintle in either a projected or a retracted
position.
3. Pintle control mechanism for revolving doors
comprising in combination with the central shaft
of a revolving
central shaft,
lation to said
slot therein,
door, a pintle connected with the 45
a housing disposed in spaced re
shaft and having a longitudinal
a control mechanism operable
through said slot for vertically shifting the pintle
to either a retracted or a projected position with 50
respect to the housing and having lugs extending
into the slot in said housing, a spring actuated
latch carried by said control mechanism and 0p
erative to. engage enlarged portions of the slot
in said housing in either the retracted or pro
jected position of the pintle, and a plate member
55
mounted on said lugs and adapted to cover said
slot.
Y
'
4. Pintle control mechanism for revolving doors
3l to engage a peripheral portion of the disc
comprising in combination with the central shaft 60
of a revolving door, a pintle connected with the
shaped head of latch device 24, for moving the
latch device transversely against the action of
spring 21 and disengaging the disc like head 24
tion to said shaft and having a longitudinal slot
rom upper recess 29, allowing central shaft 4
to be moved downwardly and pintle 5 projected
in a position for journaling the revolving door
wings centrally of the revolving door drum.
In order to prevent accidental jamming of the
70 key device in inserted position, I provide aper
tures 36 and 3l in the cylindrical housing 2 and
respectively aligned apertures 31V and 34 in the
central tubular shaft 3 to permit the insertion of
a suitable tool for dislodging the key from in
75 serted position should it become impractical to
central shaft, a housing disposed in spaced rela
therein, a control mechanism operable through
said slot for vertically shifting the pintle to either 65
a retracted or a projected position with respect
to the housing and having lugs extending into
the slot in said housing, a spring actuated trans
versely movable latch carried by said control
mechanism, a head on said latch, the slot in said 70
housing having recesses therein corresponding to
the retracted and the projected positionsl of the
pintle for receiving the head of the latch and
maintaining the pintle in either retracted or pro
jected position, and a plate member mounted on 75
2,120,746
said lugs and adapted to cover said slot, said plate
3
sitions of said pintle, for permitting entry of a
member having an opening therein embracing at , tool for ejecting said key With the pintle in either
of said positions.
least a portion of the head on said latch.
5. Pintle control mechanism for revolving doors
Ul comprising in combination with the central shaft
of a revolving` door, a pintle connected With the
central shaft, a housing disposed in spaced rela
tion to said shaft and having a longitudinal slot
therein, a control mechanism operable through
10 said slot for vertically shifting the pintle to either
a retracted or a projected` position with respect
to the housing, a transversely shiftable latch car
ried by said control mechanism, a head on said
latch, the slot in said housing having recesses
15 Atherein corresponding to the retracted and pro
-jected position of the pintle, spring means urging
said latch to projected position for engaging the
head of the latch in the said recesses, and a key
insertable through said slot and engageable in
20 said control mechanism and with the head of the
latch for disengaging the head of the latch from
A‘either of the said recesses for shifting the pintle
from one limiting position to another.
6. Pintle control mechanism for revolving
25 doors comprising in combination With the cen
tral shaft of a revolving door, a pintle connected
with the central shaft, a housing disposed in
spaced relation to said shaft and having a longi
tudinal slot therein, a control mechanism oper
30 able through said slot for vertically shifting the
pintle to either a retracted or a projected posi
tion With respect to the housing, a latch carried
by said control mechanism, a spring operating
to yieldably force said latch radially outward, the
35 slot in said housing having recesses therein cor
responding to the retracted and the projected
position of the pintle, a head on said latch en
gageable in said recesses in either of the limiting
positions of the pintle, and an insertable key
40 transversely directed With respect to the central
shaft and through the slot in said housing into
said control mechanism, said key having a shoul
der thereon engageable with the head of the latch
>for shifting the latch against the yieldable force
45 of the spring for removing the head of the latch
from either of the recesses during the movement
of the pintle from one limiting position to the
other.
7. Pintle control mechanism for revolving
50 doors as set forth in claim 6 and wherein said
central shaft and said housing are apertured re
spectively in alignment With the positions of said
key corresponding to retracted and projected po
8. Pintle control mechanism for revolving
doors comprising in combination with a central
tubular shaft and a housing therefor, a retractible
and proj ectable pintle concentrically disposedvvith
respect to said shaft, a block member connected
with said pintle, said housing having a slot there
in and said block member disposed in said slot,
a plate member mounted on said block member
and adapted to cover said slot, and means for
shifting said block member in said slot for re
tracting or projecting said pintle.
9. Pintle control mechanism for revolving 15
doors as set forth in claim 8 and including means
for latching said pintle in retracted or projected
position.
l0. Pintle control mechanism for revolving
doors comprising in combination With a central 20
tubular shaft and a housing therefor, a retractible
and projectable pintle concentrically disposed
with respect to said shaft, a block member con
nected with said pintle, said housing having a
slot therein and said block member disposed in
said slot, a plate member mounted on said block
member and adapted to cover said slot, latching
means mounted in said block member and en
gageable with .a coacting portion of said housing,
said plate member having an opening therein ex 30
posing at least a portion of said latching means,
and means for shifting said block member in said
slot.
11. Pintle control mechanism for revolving
doors comprising in combination with a central 35
tubular shaft and a housing therefor, a retract
ible and projectable pintle concentrically dis
posed With respect to said shaft, a block member
connected with said pintle, said housing having a
slot therein and said block member disposed in 40
said slot, a plate member mounted on said block
member and adapted to cover said slot, latching
means mounted in said block member and en
gageable with a coacting portion of said housing,
said plate member having an opening therein 45
exposing at least a portion of said latching means,
and means insertable through the opening in said
plate member and engageable with the exposed
portion of said latching means for releasing said
latching means and shifting said block member 50
in said slot.
THURLOE, M. HAGENBOOK.
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