US1275174A - Self-closing pendulum-hanger for doors. - Google Patents

Description

J. H. STEWART.

SELF CLOSING PENDULUM HANGER FOR oooas.

APPL|CAT 10N.HLED JUNE 27-1917.

Patented Aug. 6, 19

IN VEN TOR, Jafin 1?? Siewarij WITNESS: MM

A TTORNE Y.

' and very easy in operation. It is practi-- @MTED E T JOHN H. STEWAR orJAMaIca, new YORK, ASS-IGNOE'TO EE cQB'URN TRQLLEY f ,T tAcK-Mre 00., or HOLY KE, MAssAoHUsETTs'A GQBPQBATIoNor /mssa" I CHUSETTS.

Application filed Juneav, 19'17. -ssa1 m.1w,

T 0. all hi/2,0712, it may concern .1

B e 1t lmown that 1, JOHN H. STEwAnT, Sub ect of the King of. Great Britain, residing at Jamaica, in the, borough of Queens doors, particularly in doors for closing elevator wells, or, wherever va quick acting and quietly operating sliding door can. be conveniently used. The present invention re lates to the-type of door which is supported by means of swinging bars or pendulum's'.

An object of the invention is; to provide a door construction which is of simple design cally noiseless, and one thatdoes away with the ordinary supporting anti-friction rollers at the top and bottom edges. It is of the type shown, described, and claimedin Letters Patent grantedto me on 'Dec. 12, 1916, No. 1,208,690. In'the presentfconstruction the weighted end of the penduluin' is located within a compartment or inclosing casing a whlch 1s formed w1th1n the panel-work of the door, the upper end of the pendulum be-, ing connectedto a fixed support. A further object of the invention is to provide means for attaching the sliding door vto another door, preferably a swinging one, that can be opened if desired to increasethe width of the doorway, although usually only one of the doors is used at a time. The two doors are then moved asa unit. These and other objects'of the invention will appear in thebody of the claims.

Referring to the drawings: Figure 1 is a side elevational view showing the sliding and swinging doors in closed position, the weighted end of the pendulum of the sliding door being shown in clottedlines and located within an inclosing casing which is set into thepanel work of the door, the right end portion of this figure representing the door that is pivotally connected to the door casing and with means for lock'-' ing the'same against a swinging movement;

Fig.- 2 is a horizontal sectional view onthe line 22 of Fig. 1, the full lines showing the doors in closed position and the dotted lines showing the two doors swinging'out- V the cas ng 19 as well. 'Alsoattaehedfto the ward as a unit;

SELECLOSING PENDULUM-HANGER r03 noons.

Specification of Letters Patent.

, Patented Fig. 3 is a horizontal sectional view on the line 3 3 of Fig. '1 showing the lnterior'construction-of the casing in; which the weight that operates the door is located Fig. 4'is adetjailed view of the upper end of the pendulum or bar which is attached to the normallyclosed door. This 1 figure shows the position that the doors-assume when the pendulum supported. door is moved into a position' at 'the'side of and adjacent to the normally closed door;

Fig. 5 is 'a' sectionalelevational view on the line 5 5' of Fig-. 1 showing the manner of, connecting the pendulum to theweight also showing the manner inwhich the 1I1' closing casing for theweight is set into-the panel workof the door. I

Referring'to the drawings in: detail: The

usual frame workor casing of the doorwa is indicated at 1, 2, anafe. The two doors employed for closing the doorway areindicated at 41 and 5. The door 4 is a sliding one,' bymeans of a' pendulum construction forsupporting the same'whi'le the'door 5 is deslgned to be a sw ngmg one, the same b'e- I mg connected to the cas1ng2 by means of the'hinges 6. H

Referring first to'the construction of the door 4: 7 indieate's a link 'orbar, the upper end of which is pivotally connected to the fixed channeI'and guide'iro'n 8 that-is secured tothe door 5. (see Fig. 4) byjmeansbracket 14' issecured to the panel 16 which is located at the rear portionof the casing, while the bracket 15' is attached to and depends from the bracket 14:. The weight-11 of the pivot 79. Its lower portionii'sflpivotally is formed with a recess 17 for the purpose of receiving additional' weights for the proper balancing and operation of the door 4. L0 cated between the endsfof the" link? is a sliding and pivotal support-17' which passes through an elongated slot 18 in the bar-7. This pendulum or supporting bar is guided by means of the, swinginghousing 19. This" construction permits thependulum- 7 not only to have a swinging movement about the pintle'17 but a sliding movement through link 7 is link 20 at substantially its middle point, the upper end of which is pivotally connected to the door a by means of the pin 21. It will be noticed from Fig. i that the upper end of the link '20 is bent inward so that the pintle 21 is located in the recessed or cut-out part of the upper end of the door 4. The purpose of this is to permit the links 7 and 20 to pass by each other in the opening and closing operations. The pivotal. connection between the links 7 and 20 is indicated at 22. The lower end ofthe link 20 is connected to the link or bar 23 by means of the pivot 24. V The right hand end of the link 23 is pivotally connected to the swinging door 5 at its outer edge, as shown and indicated at 25. The swinging door 5 is normally locked against movement by means of the sliding bolts 26 which are located at the top and bottom portions of the door 5 and near the inner edge of the same. Door l is locked to the casing 1 by means of the swinging latch27 which latch is pivotally connected to the swinging housing 19, as indicated at 28. The inner end of this latch is formed with a curved upwardly extending portion 29 which the operator grasps to unlatch or unlock the door 4: and also for sliding this door into its open position as indicated by the dotted lines of the links or bars 7 and 20. The rotation ofhousing 19 causes the latch 27 to move inwardly on door 4: in opening so that it does not obstruct the opening when door 4 is opened as shown in dotted,

lines.

One of the important features of the present invention is the doing away with supporting and guiding rollers which in this class of inventions are usually employed at the top and bottom edges of the movable door for supporting the door and for reducing friction. The present construction is wholly a pendulum device for supporting and permitting the sliding of the door 4:; theupper end of which is guided by means of the channel iron 8.

7 Referring now to the construction shown in Fig. 21b will be seen that both doors 4 and 5 are in the-closed position as indicated by the full lines. The dotted lines indicate that the door thas been moved toward the right by the operator, lifting the latch 27 and moving the door into parallel relation with and adjacent to the door 5, as sho wn. If the two doors are to be opened the bolts 26 of the door 5 are then withdrawn'fro n their sockets from the sill or floor portion when the two doors can then be readily swung outward, as shown in the dotted lines in Fig. 2, thus permitting the full width of the doorway to be utilized although normally the door 5 is bolted and only the door 4 is ordinarily used.

-.It should be mentioned and understood that suitable adjusting or take-up devices 1 but not to hold the door a open. As the operator releases the latch 27 the weight 11 will automatically return the door lto its normal or closedposition again. The construction therefore embodies a self-closing door construction of the pendulum type and one that is very easy to operate and at the same time practically noiseless in its operation. It also provides a door that cannot be left open through carelessness of the operator but will close and latch automatically upon releasing the handle insuring safety when used for closing elevator Well openings. 7 1

An important feature of the present in vention is the fact that in the construction shown in the drawings whereby the usual rollers are omitted and the doors are supported entirely by the pendulums and thus producing a construction that is noiseless in operation, the pendulum bars which are substituted to act in the place of rollers or guides performing the usual function of the rollers or guides. Another important feature in connection with the presentinvention is the entire elimination of the usual transom construction which is required to carry the track in ordinary sliding and swinging construction, whereby the noiseless feature is produced.

' particular use as the same may be used for barn doors, house and freight car doors, as

well as passenger and Pullman car doors and street railway. coaches, if desired.

VVha-t I claim is: 1. The combination with a doorway, of a pendulum supported door therefor, comprising a bar having a pivotal connection with a fixed support, a weight connected to one end of the bar and to the door, they bar'being also connected to the door, a second bar connected to the door and to the first mentioned bar, and means for pivot-ally con-- necting the second bar to a fixed support, the pivotal connection of the first bar with the door permitting the door to travel in a straight line'during its opening and closing movements.

2. In combination, a sliding door, means for pivotally supporting the door compris- Such a construcution is desir-: able in hospitals and hotels where elevators nsing g, o e t 'vj o "the d r d to a fixe'd p it;ji dtiv lys e' ieh connected to the free end ofthebfi for-re turning the door to its closed position,an'd' means connected t'o' the enginee 'and fixed support, for controlling the movements of the bars and tel the door-f door to its closed position;

for normally retaining "the door in its closed Posit n, the therend of t e ba e ng nected to a fixed supportfa secondb'arcom nected 'to the door at one end, and to "said" in a line passing through its center of gravity, the weight being confined in an inclosing casing of the door, and means connected to a support and the bar for causing the door to always retam its vertical position during its movements.

6. A door comprising two sections, one of the sections designed for sliding movements, means for pivotally connecting the two sections of the door as a whole to a support to permit of a swinging movement of the two sections and including a bar having a sliding and pivotal connection with one of the door sections and attached to the other door section at one end, its other end having a weight connected thereto and to the sliding door section, a second bar connected to the said bar at a point substantially midway of the length of the second bar, one end being connected to the sliding door section and the otherend to the other door section, whereby when the sliding door section is moved it will travel in a straight line and automatically return to its closed position independent of the movement of the other door section if the operator releases the same at a point in its travel or its full open position.

7. A self-closing door, comprising incombination, a pendulum or swinging bar pivotally attached to the door and a fixed support for supporting the door, a counterbalancing weight attached to the bar for returning the door to its initial position after being moved therefrom, means connected to the door and pendulum to malnt'aln the axis for pivota'lly' I"sup'plorti'ng' the" door, means" connected to" oneflof {the-bar's affixedsupport for 1' controlling the movements of the bars and door, a weig t:connected-ta ent orflreturningthej "4 5 In a sIidi'ngQd Orjthe combinationf a bar pivotally andslidably connected to the door, one end 'oi 'the' banhaving a weightpivotallyconnected thereto and to tliedoor r 1511 a 15615 in" anji pnghtior vertical 051:

tioh whenconsidered wit'hrelation to itsi'niJ in combination, a pendulum or swinging bar pivotally' attached to" the door in a sliding p I I 1 a wi ging"manner and 'also' pivotally 3. 111: sliding door Ithe combination'jbars' i i connected "to ai'fixedfsupport construction, I

or 1 closed position, a weightattached to the bar, means attaclie'd to pendulum and doorfor' 'controllin g'the 'posltion' of the door; dur

mg *its movements, and f a" latch connected wthe pendulum; whereby whenth'e door is operated the latch will be simultaneously moved in ?unison with r the pendulum i-nto and but of latching position."

'*9L -K"self- -closing do r," comprising in com 1 .bine ng wwine bar ,g n fia o e door, and to a fixed support, respectively'ya counter-balancing weight for moving the door and attached to the bar and door for automatically returning the door to its initial position, two links 20 and 23, one being connected to the swinging bar and door and the other to saidlink and support for controlling the position of the door during its movements. V

- 10. In a self-closing door construction the combination, of two door sections, a bar pivotally connected to one door and to a second door for supporting the first door, a

weight attached to the first door and bar for. returning the first door in its initial position, the second door lbeing pivotally connected to the casing or door frame, two links connected together, one end of one link being connected to the first door and its supporting bar and the other end of the other link being connected to the second door for controlling the. movements of the first door, whereby when the first door is moved to its open position adjacent the second door the two doors, as a unit, may be swung on the pivotal connecting means which supports the second door.

11. A self-closing door, comprising, in

combination, a .bar pivotally and slidably connected to the door at a point in a line passing through its center of gravity, a weight connected to the lower'end of the bar, said bar being in a normal inclined position and connected to a fixed support at its' upper end, means comprising links for for sliding movements into a position paral-o lel with the othersection, said other section having a pivotal connection with the maintaining thedoor during its movement 1 m a vertlcal pos1t1on, and a latch connected 7 to the bar and movable therewith for plac door casing for swinging movements, a supporting bar attached to. thevsliding section and to the swinging section, a weight at:-

tached to the bar and sliding section, links connected to the sliding section, bar and swinging section for maintaining the slidmg section 111 a vertical positionasx the sl1dcombination, of means for supporting the;

door to permit sliding movements to its open position and to automatically return to its closed position,;said means including a pendulum bar pivotally connected to a fixed support near its upper end and asliding and pivotal connection With the door near lower end, a Weight connected to the door and to the lower end. of the pendulum bar,

as described; and meansvfor maintaining the door. 1n a vertical position during its movements.

151,111 a sliding door construction, means I for supportlng the same to permit the door to be opened and to automatically return to its initial or closed position including a pendnlum bar having a pivotal connection with a fixed. support for operating the door and a;

sliding and pivotal connection with-the door to permit lateral movement of the door, and

movements,

J OHN STEWART- Copies of this patent maybe obtained. for five cents each, by addressing the commissioner of Patents,

Washingtoml), G.

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