US1275175A - Self-closing pendulum-hanger for doors. - Google Patents

Self-closing pendulum-hanger for doors. Download PDF


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US1275175A US20558617A US20558617A US1275175A US 1275175 A US1275175 A US 1275175A US 20558617 A US20558617 A US 20558617A US 20558617 A US20558617 A US 20558617A US 1275175 A US1275175 A US 1275175A
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John H Stewart
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    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/06Door or gate operation of sliding doors
    • B66B13/08Door or gate operation of sliding doors guided for horizontal movement


l,2'?5,175. Rimming. 6,1918.
5 Era Z;
' :Jbkn H Siewart,
- gmatically closing the door after the same has "1 with connecting devices for UNITED sTATns. rATEnT rr10 v To all whom/it may. 00mm.- 7
SELF-CLOSING rnnnnnuirnii'nsnn Ton noorts.
"Be it knownlthat I, JOHN STnWAnT, a,-
-:subjeot of'the-King of Great Britain, and a 1. '1 liding doors.
resident of Jamaica, borough of Queens, in
the. county of Queens and State of New :York, have invented certainnew andfuseful Improvements =in Self-Closing. Pendulum- Hangers for Doors,of which; the following is a full, clear, and exact description,
This invention relates to improvements in- Inthe illustration accompanylngthis application it is'shown as being applied to elevator wells, but it is of course understood that its applicati n i not '6 '15 stricted to any particular use,.since it, may
1 readily be adapted to -other uses-as desired, *as for example, barn or car doors.v 'I-t re- :1ates,in. general, to the Ttype'of doorsshown i and described in. Letters Patent of the United States granted-tome on December 12,1916, .#l,208,690,-forself closing 'pendu-,
lum' hanger for doors, and in my pending application Serial #177,300, filed-June 27,
- 1917, known as pendulum hangers for doors.
The present invention differs from these referred to in having the door closingweight .located'abovethe door in a'recess or'open- M ing= immediately above that part of thedoor frame or "case at theupper end of the doors.
. --causingthe weight to close a second door -asthelfirst one is operated; I
. Figure. 1 shows the posltion of The invention, broadlyconsidered, comm been opened. Devices are also provided for :Beferring to the drawings:
the. door flatter being opened,with the weight elevated Fig. 3 is a verticalsectionalview'on the a for; returning theidoor toits closed p'osition.--
.23, which is slldably supported by means of In this view two movable doors areshown operating one from the other.
" line 3 3 of Fig.1 showing the arrangement of the operative parts and. i
Y Fig.4 is a horizontal sectional view on the line H 'of Fig. 2 :showingtwo movable Specification of Letters Patent:
' door sectionsarrangedlfor slidingfor passin g by each other, and .a, fixed door section.
" Fig.. 5 a modification of the weight operating mechanism.
redgevof the doors'; 4.1 is a beam or girder which may be of channel iron and to which the door: supporting pendulum is attached.
. 5 is a pendulum bar, Which fislpivotally attached, to the heamlby any suitablemeans,
as a plate 6 and pin7, theplateh'aving a I g Y Patented Aug. 6, 1918 i Application filed December 5, 1917. s ri'a' t assse; V i
slot, if desired, for thepu'rposes of adjust-V ment. The pendulum bar 5 is pivotally connected to the door- 8 means. of the crank 9 and pin 10., the crank being also pivotally conneotedlto the door 8 by means of the plate 11, which, as shown, is set into{ one of the lower, panels and secured thereto by means of bolts 12 and 13. The pendulum bar 5 is further connected to the door 8 by means of the slot 14; in the pendulum and the pin 15,;which' is carried. by the plate 11. I It is in a line, passing through the center of gravity of the door; .The bar5 has attached which the roller 17 rests, which is rotatably attached tojthe weight 18. This weight is placed on the outer end of the'rod 19, which fis -pivotally connected to the building as indicated at 2Q; The eflect, of this weight, which is supported on the rm 16, is to normally'retain the-Idoor 8 in a closed position as shownin Fig. 2; Connected tothe bar 22 which, as shown in Fig. 4c, is attached to the right hand edgefof the sliding door a second pendulum or bar 2t, which is also connected to the plate '6 by means of the 23 by means of the .crank- 25 and pins 26 v and 27 and the slot and pin connection 28 and 29. The piece 3 is slotted, shown in Fig. 3, at30 to permit the pendulum 24 to to be understood that the connection of the crank.9'tothe door, and the pin 15 are thereto the curved arm, or, extension 16, on
passloosely therethrough, The door section 31 is a fixed one. When the other two door sections are moved toward the right hand they will occupy a position atthe side of and in front of the door section 31.
Instead of the arm 16 being used, a bar 32, shown in Fig. 5, may be used. This vbar is connected to the pendulum bar 5. Its
outer, end has attached thereto a weight .33
by means of the flexible connection 34.
The operation of the door "hanger may be described as follows: As already stated, the
actiono'f the weight 118is to normally retain the doors in a closed position. Should the operator move the doors 8 and 28 to the openposition (See Fig. 1) by grasping the latch '35, they will be moved from the posi.-'
Y tion shownin Fig. 4 to that shown in Fig. 3;
On account of the doors 8 and 23, being hung, or supported, at their centersof gravity, they will be operated with very much less effort by the operator and have a tendency to remain in a vertical position. Their upper edges will be free from contact with the beam3. The weight of the doors is supported by means of suitable rollers located in the lower part of the doors, as shown at 36. The slot and pin construction 1 t, 15, 28 and 29 will readily'permit the pendulum bars 5 and 2% to have freeand unrestricted movements during the opening and closing operations. After the doors 8 and 2-3 are opened and the operator releases his grasp on the latch 85, they will close automatically by reason of the weight 18, and roller 17 acting onthe arm 16, or, weight 33 on the arm 32. It should bestated that the door 23' will be moved by the bar 21 to its open or closed position when the door 8 is operated. This door 23 will have a rate of movement one half that ofthe door 8 by reason of the bar 21 being connected at a point midway between the pivots 7 and 15.
From this description it will be seen that the weight 18 is located in recessesthat are separate from the door and in a position that will not endanger the operator. Also the crank and pin connection 9 and 10, 26 and 27, is located in a recess of-the door itself. It will also be observed that the de vice is very simple in construction, having 'few parts that are constructed from comparatively inexpensive material.
What I claim is:
1. A sliding door operating device comprising, in combination with the door to be operated, of a pendulum'barhaving pivotal connections with a fixed support above the door-way, its lower end having'a crank and pin connection with the doorand also in addition a slot and pin connection with the door in the same-vertical line as the crank and pin connection, and devicesincluding a weight operating on an arm attached to the pendulum bar for returning the door to its normally closed positiomsaid means coniprising an arm on the pendulum bar and a movable weight engaging ,the arm for the purpose set forth.
2. A sliding door construction, comprising, in combination, door sections, of a swinging bar that is pivotally secured to a fixed support adjacent the door-way and to .the door section to be moved, a seconddoorsection, a second swinging bar pivoted to the fixed'support at the same point as the first mentioned swinging bar and connected to the second door section, a bar connected to the first-mentioned swinging bar and to the second-door section for causing the :two door sections to :move together, .butat different rates of motion, and a weight, theaction of whlch 1900111111011 to the two door sections and swingingbars for returningxthe doors to their normally closed position- 3. A sliding. door construction comprising, in combination, a pendulum .bar having a pivotal connection with a fixed support at one end and a door sectionconnected-to the said bar at its other end, the latter connec tion including acrank arm, a slot and pin connection of the :pendulum 'bar,v with the door sect1on,-sa1dbar having an inclined position when the door-section .is normally closed, a weight having an .independentfpivotal connection with the fixed support,.and inter-engaging means between the weight and the pendulumbar for returning the door section to and maintaining the same in its normally closed position.
1. Adoor'operating'device comprising, in combinationuwith the doorztobeoperated, of
a pendulum bar sihaving pivotal connection 7 with a-fixed support.abovethedoorway, its lower end having a crank and-pin? connection with the door at apoint which is located in a line passing'through the center of gravity .rates or speeds, and comprising two pendulum barspivotally hung from the samefixed point, each barhaving-a crank and pin and a slot and pin connection withra-gdoor sect1on, anda connection from one of saidz'bars which connects onedoorsection'to the other door section.
. 6. A slidmg door construction, .compris- .ing, in combination, door sections,w.pendulum operating bars :for said sections, means "for moving one; sectiomfrom the other, means for returning the .door. sections to, their mit al positions comprislng a rod having a pivotal connection With a fixed support, a Weight on the rod, an arm on one of the pendulums for receiving the weight to cause the door sections to return to their initial position.
7. A sliding doorconstruction comprising, in combination, a door section, a one-piece pendulum directly connected to the door section for operating the same, means arranged adjacent thev pivotal point of the pendulum for returning the door section to its first position after being removed there-" from and comprising an arm on the pendulum and a Weight movable on the arm.- 7
8. A sliding door construction, compris- Copies of this patent may be obtained for five cents ing, in combination, a .door section, a pendulum for operating said section duringits cally returning the door section to its initial position comprising an arm'on the operating pendulum, a bar having a pivotal connection With the fixed support and on which latter bar a Weight is located, and a roller carried by the Weight for engagingthe arm on the purpose described.
pendulum for the JOHN H. STEWART.
each, by addressing the Commissioner of Patents,
Washington, D. G.
US20558617A 1917-12-05 1917-12-05 Self-closing pendulum-hanger for doors. Expired - Lifetime US1275175A (en)

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US20558617A US1275175A (en) 1917-12-05 1917-12-05 Self-closing pendulum-hanger for doors.

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US20558617A US1275175A (en) 1917-12-05 1917-12-05 Self-closing pendulum-hanger for doors.

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