US856252A - Gas-valve. - Google Patents

Description

PATENTBD JUNE 11, 1907.

A. L. HAMMARBERG.

GAS VALVB. APPLIOATION PILED BEPT.20.1906.

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PATENTED JUNE 11, 1907.

A. L. VHAMMARBBRG.

GAS VALVE.

APPLIOATION FILED SBPT.Z0.1906.

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ARNDT L. HAMMARBERG, OF YOUNGSTOWN, OHIO.

GAS-VALVE.

Specifieaton of Letters Patent.

Patented June 11, 1907,

Application filed September'20,1906. Serial No; 335.374.

To all whom/ it Tri/ay concrn:

Be it known that I, ARNDT L. HAMMAR- BERG, of Youngstown, in the county of Mahoning, State of Ohio, have invented a new and useful Gas-Valve, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a vertical sectional view illustrating my invention; Fig'. 2 is a side elevation partially in section; Fig. 3 is a plan view partially in section on the line III-III of Fig. 1; Fig. 4 is an enlarged detail view of one of the clamps by means of which the water-trough is Secured around the valveseat.

Like symbols of reference indicate like parts wherever they occur.

My invention relates to a water-cooled valve wln'ch, although it is specially adapted to the purpose of reversing the gas in a Siemens regenerative furnace, it is also applicable to other furnace valves for furnaces or hot blast stoves where it is desirable to retain a close even joint between the valve and its seat and to prevent the valve from warping or being otherwise injured by the action of the heat.

Heretofore it has been common to prevent injury to the valves and to insure a close joint between the valve and its seat by means of water-jackets consisting of closed cast-iron chambers or coils of WTought-iron pipe set in the brick-work and through which water is caused to circulate, thus producing an internally cooled valve, or by water-seals which consist of an open trough into which the valve, in the shape of an inverted cup, seats itself, thus producing a water-cooled and water-sealed joint. Water-jackets set in the masonry of the valve are objectonable for the reason that sediment, mud, and other impurities in the water are deposited in the jacket which, being thus protected from the cooling action of the water soon loose their cooling properties, allowing the valves and other parts to warp and burn. The objections to a water-sealed valve are that it is open to the gas in the v gas-main and soon becomes clogged with soot and other impurit-ies contained in the The object of my mventon s to provide water-cooling for valves by means of a trough or Conduit which, while it is at all times open for theremovalof sediment, mud, and other impurities deposited by the water, it is also closed to the gas contained in the gas-mains.

The further object is to so construct the gas-mains as to permit the ready removal of the valves when it is desirable to do the same.

My invention therefore. consists in the provisionof externally cooled valve seats in which the action of the cooling water can at all times be readily controlled and observed -others skilled in the art may manufacture and use the same.

In the drawing a represents the gas-fine leading from the gas producer to the furnace; located in this flue in the usual manner and form is the sand-damper b and the valve c between the nozzle and the elbow. To the lower end of the elbows e, e' are attached the water-cooled valve-seats f which are in the form of annular troughs, the inner face f of the trough forming the seat of the valve. These troughs have inclined bottoms or inner sides f which ermit the valve to seat itself easily and evenly When the valve is closed. Directly below the water-troughs f and fastened to them by hinge bolts g are the casings h, h', open at top and bottom and having side outlets k, k' which communicate with the hoods Z leading to the furnace fiue m. These hoods Z may be of the ordinary design. The casings h, h' are supported by the water-troughs n, n' which form the lower water-cooled valve-seats. These watertroughs n, n' are similar in design to the upper water-troughs f, f' eXcepting that a portion of the lower water-troughs extends throu h the bridge-wall 0 between the furnace ues m and stack flues p, and thus not IOO IIO

only serve as a water-cooled valve-seat but also serve to cool the bridge-wall o which, owing to its shape and position, is subject to a cuttng and wearin heat. The watertroughs n, are preferab y Secured to the casings h by hook bolts g, one of which is shown in Fig. 4. Water is kept circulating in water-trou hs f, f' and n, n by suitable inlet and out et water-pipes whereby the Valveseats are continually kept cool. In the positon shown in the` drawings the valve 7 adinits producer gas to the furnace and the valve r discharges the waste gases to the stack. By raising the valve 1" to the upper valve seat and droppin the valve r to the lower valve-seat, the urnace is reversed. The valves may be operated by hand or by power as is desired.

When it is desired to inspect or to renew the valves 1' or 7", the valve c is first closed and the valves r or r' are raised to the upper valve seat, the bolts g and s are now unhooked and the elbow e is swun open, which allows the valve saucer to be ropped in the open. In this manner the valve can be easily or quickly renewed or inspected.

The advantages of my invention as hereinbefore stated, and described, will be appreciated by those skilled in the art.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. In a gas-valve for gas-mains, the combination of a casing, a valve seat, and an eX- ternally open water-trough on the outer face of said valve seat, the wall of the valve seat constituting the inner wall of the watertrough and forming a portion of the gasman.

2. In a gas-v'alve for gas-mains, the combination of a casng, a valve, an .upper valve seat, a lower valve seat, a water-trough on the outer face of each valve seat, said water- I trough being open exteriorly and closed to the interior of the casing, the walls of the valve seats constituting the inner walls of the water-troughs and forming portions of the gas-main.

3. In a gas-valve, the combination of a casing, an elbow, a valve-seat Secured to the lower portion of the elbow, and a hinged joint on the elbow whereby the elbow may be swung clear of the casing for the purpose of renewing the valve.

In testimony whereof, I have hereunto set my hand.

ARNDT L. HAMMARBERG. Witnesses:

FRANK H. HoUGHToN, JOHN J. GRANT.

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