US1950681A - Three-wing panicfroof revolving door - Google Patents

Description

March 13, 1934. 1 w LlGHT 1,950,681

THREE-WING PANICPROOF REVOLVING DOOR Filed Nov. 5, 1931 2 Sheets-Sheet l gi? il Il l'lfl INVENTOR.

March 13, 1934. J. w. LIGHT THREE-WING PANIcPRooF REvoLvING Doon Filed Nov. 5, 1931 2 Sheets-Sheet 2 l l 07 Midi. mm .ww/ m #MMM 4 ,www3/4%.@ 771 l Z ZM., Z t l 3 h# Il lumwuwi- 5 INI/ENTOR. wwwa@ BY A T TORNE Y.

Patented Mar. 13, 1934 OFFICE THREE-WING PANICPRF REVOLVING John W. Light, Independence, Kans.

Application November 5,

3 Claims.

This invention relates to revolving doors and has for its general object to produce a panic proof three wing door of strong, durable, eiilcient and comparatively inexpensive construction, panic proof as used in this connection meaning a door which will collapse should two or more persons attempt to operate the door in opposite directions.

A still further object of the invention is to produce a three wing door which may be collapsed and swung to one side of the door opening if desired.

Another object is to produce a revolving door which is supported at its bottom and therefore does not require a complicated and expensive overhead support as usually required with revolving doors of ordinary construction.

A further object or" the invention is to produce a door of the character outlined which when locked in closed position for the night will permit access to the interior of the store by the proprietor or other authorized person, through the folding of one of the wings without rotation of the door or manipulation of any of the other wings of the door.

A still further object is to produce improved center trunnion supports and a better and cheaper top and bottom locking bolt for securing the door at night.

With the general objects named in view and others as will hereinafter appear, the invention consists in certain novel and useful features of construction and organization of parts as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to the accompanying drawings, in whicht- Figure 1 is a top plan View of a revolving door embodying the invention, showing the door in operative position in full lines and in collapsed position in dotted lines.

Figure 2 is a View on the line II-II of Figure 1.

Figure 3 is a View on the line III-III of Figure 1.

Figure 4 is an enlarged section IV-IV of Figure 2.

Figure 5 is an enlarged section V--V of Figure 1.

Figure 6 is an enlarged section VI-VI of Figure 5.

Figure 7 is an enlarged section VII-VII of Figure 5.

Figure 8 is an enlarged perspective view of the locking bolt mechanism embodying the invention.

In the said drawings, where like reference characters identify corresponding parts in all of the on the line on the line on the line on the line 1931, Serial No. 573,128

(Cl. 2li- 18) figures, 1 represents a center post or standard which is illustrated as of hexagonal shape, and symmetrically arranged around said post adjacent its top and bottom are three pairs of upper and lower hinge members 2 having rounded ends 3. The hinge members are received within slots in the edges of the wings e, and said wings are pivotally secured thereto by pivot pins 5 carried by metal housings 6 secured in any suitable manner to the edges of the wings. The rear edges of each of the wings is rounded as at 7, and all of the edges of the wings are equipped with the customary flexible Weather strips 8 for rubbing contact with the door frame 9 as common with revolving doors. With the hinge construction described, it is evident that each wing of the door, unless restrained, is free to pivot or hinge in either direction.

1n order to prevent the free swinging of the wings ci the door and to supply suicient resistance to insure rotation of the entire door upon the application of pressure against any one of the wings, each wing is formed with a recess receiving a housing 10 in which a guide 11 is formed, and reciprocating in said guide 11 is a stem or rod 12 normally held in fixed position by means of a spring 13 interposed between the guide and a nut 14 threaded on the end of the rod (see Figure 4). Each housing 10 is formed with a slot or opening or corresponding sides of each wing through which the end of a rock lever 15 projects, said lever being pivoted at an intermediate point between a pair of ears 16 formed on the casing 10 within the wing recess, the other end of said lever being pivoted to the end of the rod 12. On the opposite side of each wing an eye or loop 17 is secured, and extending from said eye to each lever 15 of each door, is a flexible link or chain 18. Under ordinary conditions of operation the tension of the spring 13 is greater than that required to rotate the door around its bearings hereinafter described, but should two or more persons push in opposite directions against two or more wings of the door, the resistance of the springs 13 is overcome and the corresponding lever 15 moves to the dotted line position shown in Figure 4 and permits the chain or link 18 to become disconnected from its lever 15, thus freeing the two wings of the door so that they may swing on their hinges as shown at A and B in dotted lines Figure 4, against opposite sides of the other wing. This construction is supplied to take care of panics such as occur in case of a fire, an explosion, or the like.

The upper end of the post or standard 1 is 1h10 lll held centered with respect to the door frame 9 by means of a retractile trunnion 19 engaged within a socket 20 secured to the top of the door frame 9, said pin extending through a guide 21 in the top of the center post and being connected within the center post to the end oi a rod 22 extending through a passageway 23 in the post and being provided with a fork or yoke 24 at its lower end. Received and pivoted within the yoke on a pin 25 is one end of an operating lever 26, which is pivoted at an intermediate point on a pin 27 carried by a pair of flanges 28 of a cover plate or housing 29 screwed or otherwise suitably secured to the vertical face of the post 1. Referring to Figure 5, it will be evident that by throwing the lever 25 in the direction of the arrow, the centers of pivots 25 and 2.7 pass each other, and the trunnion 19 is consequently withdrawn into the post 1 and out of engagement with the socket 20 carried by the door frame.

The weight oi the door is carried at its lower end on a retractible trunnion 30 mounted within a chamber 31 in the bottom of post i, and being adapted for engagement with a socket 32 in the floor of the door frame 9, it being noted that the socket and trunnion are provided with eoacting ratchet teeth 33, to prevent rotation of the trunnion in the socket, as it is intended that the door shall always rotate on an anti-friction bearing carried adjacent the upper end of the trunnion as will hereinafter appear. The trunnion 39 adjacent its upper end is formed with a shoulder 34 for supporting an anti-friction bearing 35, said bearing being received and held Within the lower end of a cage or housing 36 by engagement between the shoulder at its lower side, and a cross strap 37 of the cage, at its upper side, the trunnion 30 at its upper end being reduced and held to the cage by a nut 38 threaded down against the strap 3'! as shown in Figure 5.

The upper end of the cage is adjustably secured by nuts 39 to the end of a rod 4G, so that the projection of the trunnion 30 may be adjusted to suit conditions of installation, and said rod 40 extends upwardly through a passageway in the post and at its upper end is provided with a yoke 4l within which one end of an operating lever 42 is pivoted on a pin 43. The lever 42 is pivoted at an intermediate point on a pin 44 carried by the flanges 43a of the cover plate 29 similarly to the construction described in connection with the upper trunnion. With this construction, it will be evident that the entire weight of the door is transferred from. the plate 29 down through pin 44 and the end 45 of the lever 42 where it contacts with the bottom of the yoke 4l, through the rod 40 to the cross strap 37 of the cage 36, and from said strap through the roller bearing 35 to the shoulder 34 of the trunnion 30.

i It will also be evident that by swinging the lever 42 in the direction of the lower arrow shown in Figure 5, the lower trunnion 30 of the door will be retracted within the post l for a purpose which will hereinafter appear.

In order to fold the door out of the entrance passageway, one or" the wings of the door is provided with top and bottom locking bolts 46 and 47 respectively, to be received within correspending sockets in the door frame 9, said bolts passing through guides 48 and 49 secured to the face of the wing. The bolts extend in opposite directions along the edge of the wing and about midway the height of the wing they each terminate in round rings 50 within which are itted eccentrics 51 formed integrally by preference on a shaft 52 (see Figure 8); one end of said shaft being equipped with any suitable key-operated mechanism for the rotation of the shaft and consequent withdrawal of the locking bolts or their projection into their respective sockets in the door trarne. When it is desired to fold the revolving door out of the entrance passage as shown in dotted lines Figure l, the door bolts 45 and 47 are engaged with their sockets, and the trunnions 19 and 30 of the center post are retracted, thus imposing the weight of the entire door on the bolts 46 and 4'7, and freeing the door so that the chains 18 may be tripped and it can be folded to one side as illustrated. It is to be noted in this connection that the bolts 46 and 47 are also used in locking the door at night or when a store or the like is closed, one of the other wings of the door being equipped with a locking bolt 53, either adapted only to engage a socket in the top ci the door frainc as illustrated, or a double. bolt like 46-4'l, if desired. With two wings of the door thus locked, it will be evident that an authorized person may unlock a door wing, trip the retaining link or chain member i8, and thus gain access to the store without unlocking the other wing or without revolving the entire door.

It is believed the construction and operation has been so set forth that recapitulation is unnecessary, and it is to be understood that while I have shown and described the preferred embodiment of the invention, I reserveY the right to rnake all changes within the spirit of the invention and without the ambit of the prior art.`

I claim:-

l. In a revolving door, a center post, a plurality of wings pivotally carried by the center post, a center pin carried by the lowerl end of the post and having a bearing revolubly supporting the weight 12g licor socket, a weight-supporting bearing on said g pin, and a longitudinally extensible member to transmit theweight of the door to said center pin.

3. In a revolving door, a center post formed with an internal chamber open at its lower end, a

bearing slidably mounted in said chamber, a cenf ter pin carried by said bearing for nonrotatable engagement with a iloor socket, a connection for transmitting the weight of the door to said hearing and for sliding the bearing within the chamber to withdraw the center pin from the floor socket, and a centering pin carried by the upper end of said center post.

JOI-IN W. LIGHT.

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