US813011A - Air-valve for radiators. - Google Patents

Description

No. 813,011. PATENTE) P51120, 1906. 1".y W. LEUTHESSER. A111 VALVE 11011 RADIATORS.l

APPLICATION FILED MAR.18, 1904.

W MM. 13 u y UNITED STATES PATENT OFFICE.

FRED w. LEUTHESSER, OF CHICAGO, ILLINOIS, ASSIGNOR To IIO'NASII- YOUNIIER COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS.

Specification of Letters Patent.

Patented Feb. 20, 1906.

Application nea March 18,1904. serai No. 198,739.

To all Inh/nm, it 'muy Concern:

Beit known that I, FRED W. LEUTIInssER, a cltlzen of-the United States, residing at Chicago, in the county of Cook and State of have invented certain new and use- I'tlinois y Air-Valves for Radiaful Improvements in tors, of whichthe following is a specification.

chamber ofthe outer shell or casing, and in thev inletv and the shell or casing is a drainipe for returning the water of condensation back to the radiator.

The primary object of the present invention 'is to furnish a means for venting the valve in cases where the ordinary vent-passage is Closed from any cause or in cases where a quick venting is necessary; and the ,invention consistsin providing a vent-port at the base end ofthe valve as a whole, which port is in communication with the chamber of the main shell or casing and is controlled by a movable stem having an acting end to open and close the Ort; and the invention further consists in tlie features of construction and combinations of parts hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation of the valve of the invention; Fig. 2, a sectional elevation of the same; Fig. 3, a detail in elevation of the lower end of the valve, showing the plu controlling the vent-port at the bottom of t e valve inthe base or cup thereof; and 4, a detail in Cross-section through the nipple having the inlet-passage therein, the port at the lower end of the valve in the -base or 'cup, and the Controlling threaded plug for the port. f

The" lvalve is constructed with an outer shell or casing A, inclosing a chamber A and having at its upper end a neck B, which is screw-threaded at .Its inner end and recelves i a plug t, in which isa chamber b with a tapered seating-face, and the plug has a ventpassage b2 opening into the chamber of the having at its upper end a stem-fl neck through a square head b3, by means of which and a suitable key the plug can be adjusted, as required, and a flange o* between the head and the plug proper abuts against the bottom wall of the chamber in the neck. A cap C, with a solid top c and a solid side wall c', enters onto the end of the neck, and the side wall has arecess c2, into which a ventport c3 opens from the chamber of the neck. A packing a2 around the plug prevents the escape of air.

A float D, secured to t-he upper end of a receptacle-stem E bv a socket d, is located in the chamber A', and the socket d has a valvestem d to coact with the valve-seat around the vent passage of the plug. The outer shell or casing is entered into a cupor base F, which has a peripheral ,rim or flange for the purpose, and the expansible stem is held against lateral play by a pin e in the cup or base. A drain-pipe Gr from the chamber A has its lower, end turned and extended through a nipple -g on the base or cup, which nipple is for the purpose of attaching the valve to a radiator. f

The base or cup hasa downwardly-projecting wall H, having a screw-threaded hole h, with a chamber h2 on one side of the wall for the hole and a chamber h on the other side of wall for the hole, and the chamber h2 has an end wall through which a porth opens into the passage of the nipple g or the lower end of the chamber A of the valve as a. whole. The

threaded-hole h receives a stem I, having an head t corresponding to the head b3 and e adapted to receive ya y by Ineans of which the stem I can be advanced and receded.

The forward end t of the stemis tapered for i its point to enter the port hand seat around the wall of the chamber h2-and tightly close the port 71, when the stem .I is advanced and open such port when the stem I is receded.

The stem I with its seating end t controls the venting of the valve at the bottom or lower end. The stern I when advanced for its acting or seating end t to close the port h vents the valve through the passage b2 of the plu b, as usual; but with this passage closed or lie failure of the float and its stem-valve to operate properly in venting or for a quick venting the stem I is turned to withdraw its acting or seating end '12 from the port h, a1-

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lowing the air to escape through the port h and a port t2 in the wall H to the atmosphere, thus venting the valve and clearing the radiate; of air without employing the float and its: valve-stemfm the purpose. The ventingport at the bottom of the valve inconnection withits controlling-plug furnishes a ready and quick means for venting the valve, it

only being necessary to'turn the stem I sufliciently to withdraw its acting end and open the port h/ for the air to escape through the port i2, and this venting of the valve does not mpair or aHect the efficiency of the oat and its stem, rovided the vent-passage b3 is open 'and the oat 'and stemare operative, simply furnishing an additional venting means for the valve, which can be used or not, as may be vdesired, as with the stem I advanced for its nation of a shell or casing inclosing a chamber havingleadingtherefrom at its upper end a valve controlled ventiassage, a' base or vcup into which is entered t e lower end ofthe shell or casing, a central wall depending from the base or cup, a nipple projecting in line' 'with the wall and furnishing an attachment for the valve to the radiator, the nipple having a passage in communication with the lchamber of the shell or casing andthe wall having a longitudinal passage with the port at the inner end thereof in communication` I with ti ,e passage of the nipple, and a movable stem operating in the passage of the wall and Vhaving an acting end controlling the port between the passage ofthe wall and nipple, substantially as described.

.2. In an air-valve for radiators, the combination of a shell or casing inclosing a chamber having leading therefrom at its upper end a valve-controlled ventassage, a base-or cup into which is entered t e lower end of the shell or casing, a central wall depending from the base or cup, a nipple projecting in line with .the ,wall and furnishing an attachment for the valve to the radiator, the nipple havingv a passage in communication with thesiaoii chamber of the shell or casing and the wall having a longitudinal passage with a port at the inner end thereof in communication with therefrom adjacent to its inner end and a movable stem operating in the passa e of thel wall and having an acting end contro ling the ple, substantially as described.

3. In an air-valve for radiators, the combination of a shell or. casing inclosing a chamber having leading therefrom at its upper end a` ventaassage, aioat located in the chamber an provided with a valve-stem controlen of the chamber, an expansible stemA op which the iloat is mounted, a base or cup intf which is entered the lower endof the shell or casing, a central wall depending from the base or cup, a nip le projected in line With the wall and urnisllging an attachment for the valve to the radiator, the nipple having' a passage in communication wit the chamber of the shell or casi-ng, and the wall havinga longitudinal passage with a portat the inner end thereof in communication with the passage of the nipple, and a movable stem operatingin the passage of the lwall and having an acting end controlling the port between thepassages of the wall and nipple, substantially as described. y

-4. in an air-valve for radiators, the combiber having leading therefrom at its upper end a ventassage, a float located in .the chamber an provided with a valve-stem controllin the vent-passage leading from the upper en of the chamber, an expansible stem, on

which is entered the lower end of the shell or` base or cup, a nip le projected in line with the wall and furnislliing an attachment i or the valve to'the radiator, the nipple havin a passage in communication wit the cham er of the shell or casing, and the wall having a longitudinal passage'with a threaded section and with a`port at the inner end thereof in communication with the assage ofthe nipple, and a stem having a tiireaded body operating' in the threadedsection of the passage in the wall and having an acting end controlling tlie port between the passages of the wall and nippie, substantially as described.

FRED W. LEUTHESSER. `Witnessesz WALKER BANNING, WILLIAM P.4 BOND.

port between the passage of the wall and nipwhich the .(ioat is mounted, a base or cup into the passage of the nipple and a port opening lin the vent-passage-leading from the upperv nation of a shell creasing inclosing a chamcasing, a central wall depending from the 'IOO IIO

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