US1755784A - Ceiling vent - Google Patents

Description

April 22, 1930. J. JENNER 755784 CEILING VENT Filed April 13', 1.927

JAMES JENA/Efe,

`25 direction, arranged according to this .inven- Patented ApluZZ, 1930 I .UNHTED STATES JAMES .T EN N ER, OF LOS ANGELES, CALEFORNIA, l ASSIGNOR OF` ONE-HALF T `KARL SCHUMACHER, OFLOS ANGELES, lCALI,IEORII'IA CEILING vniv'r A Appia-aaronv mea April 1s,A

This invention relates todevices usedin ceilings and walls for controlling the air cir.- eulation in a room. p

One of the objects of this invention is, to

provide a vent thatmay be imbeddedin the structure of a building, as inthe plaster of walls and ceilings, operativeby a mere pulling of a member protruding.. t'romthe vent. Y Another object is toi facilitate" an opera.-

tion Vof the vent, as the closing 'or 'opening f movements, by one action. y 'n Y Another object is to provide a vent that may be closed orropenfed by a chain, or Vother similar suitable flexible` or for that matter any other protruding memberfrom the vent. Other objects will appear from the follow-v ing description and appended 'claims as well as from Ythe accompanying drawing, i kin f F ig. lis a top plan view of a vent with a Vdisc rotatably mounted on the vent and with a `ratchet mechanism Vby .which the disc can be moved to close 0r open passages through the vent by a rotation ofthe disc in the same tion. Y

Fig.`2 is a section on line 2-2 ofFig. 1 with the vent plate imbedded below the plas-v terv of a building'structure. Y

Fig. 3 isa similar'section with the Vent plate disposed on the surface ofthe plaster 1 of a building.

As illustratedin the drawing, the vent plate 4 is'provided with passages or aper-` tures 5. A disc Sis turnably mounted to rotate around a central pin 7 onthe vent plate 4.k The disc is provided with openings or apertures 8 to correspond with the openings in the vent'plate. A ratchet ring 9 is provided with notches 10 of double the number of'the'groups of apertures in thevk disc and vent plate. An operating bar 11 is shiftably mounted in the blocks V12 and 13, operat-ive by a chain 14, the chain extending through the opening 15 in the vent plate out of the front side of the vent plate. Aratchet pawl 16 is pivotallymounted on the'operating bar at 17, controlled by the` spring 18 disposed I. between the ratchet pawl and the operating bar to force the pawl into the notches 10. A

1927. kvsnaai N'ajisaaes.;

' T2: `Fic-E spring 19 serves to retain the disc in certain' positionstoV which the disc has been advanced Y 'by the movements of the ratchet pawl 16 and operating bar 1'1. The ratchet pawl 16 and operatingbar 11 are returned to inoperative positionl by thel spring `20.

This whole structure may be imbedded in av wall or a ceiling below the plaster so lthatthe vent `plate 4 becomes recessedor setback in relation to the plaster 21 as illustrated in Fig. 2. y

On the other hand,the vent plate 4 may be made of ornamental design and then placed over the surface of the plaster in a position shown'in Fig. 3, so that the vent plateis over the surface of a building'structure. Y Whenavent of this type is disposed in a ceiling, the ychain 14 may be pulled to close or open' the vent. fr lgulling the chain and therebythe operatlbar 11 with the pawl 16 brings the pawl into kengagement with one of thenotchesl() i ofthe ring 9 on the disc 6. By a further pulling the disc is rotated around the central pin V 7 on the vent plate 4. Since a double number of the notches 10 are provided'corresponding to the groups of apertures in the disc 6 and vent plate 4, the disc is only rotated in one operation half the distance ,between the groups ot openings, .which means thatthe disc is moved or turned in vone operation to bring the openings 8 of the disc over the closed space between the openings 5 in the vent, that is over the solidmaterial of the vent plate, yso as to shut-olf the passages through this vent. Y

By a second operation on 11 with the pawl 16'to come into engagement with another or" the notches 10, the disc is again rotated around the pin 7 and again moved half the distance between the groups of openings, so that the openings 8 in the disc come this time again to a position ovei the openings 5 of the vent plate. l

The groups of openings in the disc 6 and pulling the chain 14 again so as'to advance the operating bar` in the vent plate 4 are therefore preferably Y larger near the periphery `and smaller towards the center as illustrated in Fig. 1.

Having thus described my invention, I claim: f

l. A. vent of the class described comprising a vent plate, a disc turnably mounted onY the vent plate, a ratchet mechanism for rotating the disc inrelation to the vent plate, and

a chain extending from the ratchet mechav nism through the vent plate to protrude from the surface of the vent plate.

2. `In a vent of the class described, an apertured vent plate, a disc turnably mounted on the vent plate with apertures to correspond with the apertures in the vent plate, operati ing means for rotating the disc, means for retaining the disc in advanced positions, and

means for returning the operating means to inoperative position While the disc remains so retained.v v

In testimony that I claim the foregoing as my invention I have signed mv name.

JAMES JENNER.'

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