US941791A - Automatic air-valve. - Google Patents

Description

J. P. MARSH.

AUTOMATIG AIR VALVE.

APPLICATION FILED JULY 9, 1908.

htented. Nov. 30, 1969.

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n0 awer 4 cl laced if I p01). the en 6 t plece and ;-0 permit 0111 with to the bott uge u ex tens-1011 n 1 n Go the $5119.? W111 be p pm'fm'ated 2 9d1,'?91 prevent the escape of water, Then the gil comprising a case containing acchamloer with ta'tor operates as above Suggested to free a relief aperture at the upper end, a water the chamber from water. The impurities of discharging aperture at the lower end, an the water, whatever they may be, and of the expansion piece and a vertically fluted float steam and .air, tend obviously to accumulate with a valve thereon in the chamber adapted on the opposed walls of float and chamber to control such relief aperture and a drainand if large areas of such' surfaces are exage rod in the water discharging aperture. posed to each'othejrthey are likely, with the 3. An automatic air valve for radiators accumulation of such foreign matters, to. comprising a case containing a chamber with adhere or'increase' the frictionp that th a relief aperture at the upper end, water float is not free to move upwardly or d discharging aperture at the lower end, an 'wardly' 'asitiought-to move. NJith the corexpansion piece and a vertically fluted float 'rugated float here Qhown diagrammatically, with a valve thereon in the chamber adapted the fluti-n'gs come to a relatively fine ed to control such relief aperture and a drain- "and in; practice usually not more than one g od i he Water discharging aperture of .such cdgeis ever in contact with or in close a r ss s ti n other than circular. I proximity tothe opposed chamber wall 4. An automatic air valve for radiators 80. and hence there are no extended area in com )risinga case containing a chamber with close relation. I a re ief aperture atthe upper end, a dis- By arranging the cap and valve plug with charge passage way leading thence to the the two pac 'ngs'I secure a very tight joint open air and having at some place along its to prevent the escape of steam, air or wat len h a relatively large cross section, a. cap through the screw threaded connecting parts. i110 d g c Q S Section, disk Valve ,"Fhe l'valve aperture rapidly enlarges until lying upon such cross sectional opening, the op i rms-r f. th ca is very -a disk weight on the valve, a water dis-' large, leavmg a freeJexit-for air or steam, charging aperture at the lower end oft-he when th latter for some short period is. chamber, an expansion piece, and a verfree to escape. To close this large opening tically fluted float with'a valve thereon in I emplo the disk valve which is no more the chamber to control such relief valve. than a, at disk lying upon the top of the 5. An automatic air valve for radiators opening. vIt maybe made of any desired com rising a case containing a chamber with material but preferably make it of comare ief aperture at the upper end, a dispressiblematerial and I preferably employ charge passage way leading thence to the on top of it a relatively hard weight also open air and having at some place alonglits in'the shape of a disk. Thisarrangement I length a relatively large cross section, a cap find makes a very free and open passage including such cross sectionfa disk valve c with an easil moving valve. There is no lying upon such cross sectional opening, a

tendency of the valve to stick and no diiilfdisk weight on the valve, a water dischargculty in placing or retaining it in proper ing aperture at the lower end of the chamrelation. The -crown piece does this. The her, an expansion piece, a vertically fluted depending pin p'revents the parts from risfloat with a valve tnereon in the chamber to ingout of proper relation, to each other or control'sucl rel-ief valve, and a drainage rod the opening. in the wategdischarging aperture of a cross The drainage rod or agitator tends to keep section other than circular. V the assage open and let the Water. run out 6. An automatic air valve for radiators 0f the chamber; thecorru ated float has comprisin a case containing a chamber little tendency to stick to the walls of the with it re. ief aperture at the upper end, a

. chamber; the relief passage way from the discharge passage wayjleading thence to the chamber to the open air is provided at one open air and havin at someplacealong its point along its route with a large opening so length a relat'vel'y large cross section, a cap asto permit a free discharge of whatever including S1151 cross section, a disk valve it is desired to eject, and this opening is conlying u on such crosssectional opening, a trolled by'a' weighted valve Which'will not disk weight on the 'valve, a water dischargeasily stick or clog. ing a erture at the lower end of the cham- I claim: l I her, an expansion piece, and a vertically 1. An automatic air valve for radiators fluted float with a,.valve ,thereon in the com rising a'c'asc containing a chamber with chamber to control such relief valve, and a a re ief aperture at the-:upper end, a water drainage rod in the water discharging aper-F discharging aperture at the lower end, an ture of a cross section other than circularp expansion iece and 'a'verticallyfluted float 6 JAMES P MARSH. with a'vave thereon 'in the chamber and Witnesses: adapted to control such relief a erture'.v Mnvnrn M. L InnivA or radiators EDNA K. RnYNoLos.

2. An automatic air valve

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