US878213A - Valve for furnaces. - Google Patents

Description

No. 878,213. -PATENTED FEB. 4, 1908.

0. LONGENBGKER.

VALVE FOR FURNACES. APPLICATION FILED APR.17, 1907. 3 SHEETS 83251 3- I 37 Pl E El i "irzgmnmnueull wmuzsszs: INVENTOR 5M: W0 9 QQ 'V Gaq,Atty'S THE NORRIS PEYERS cm. wAsmycro'v, n c.

CHARLES LONGENECKER, OF BEAVER, PENNSYLVANIA.

VALVE FOR FURNACES.

Specification of Letters Patent.

Patented Feb. 4:, 1908.

Application filed April I7. 1907- Serial No. 368.797.

To all'whom it may concern:

Be it known that I, CHARLES LONGE- NE'GKER, residing at Beaver, in the county of Beaver and State' of' Pennsylvania, a citizen of the United States, have invented or dis covered certain new and useful Improvements in Valves for Furnaces, of which improvements the following is a specification.

The invention described herein relates to certain improvements in valve mechanismfor regenerative furnaces and has for its object a construction of valves and operating mechanism, whereby when the valves are closed a perfect seal will be formed and the valves when opened will be out of the line of flow of the hot gases.

It is a further object of the invention to provide for the easyand quick removal and replacement of the valves when necessary, and also for the simultaneous-shifting of the valves when a reversal of the furnace is required.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings forming a part of this specification Figure l is a top plan view of my improved valve mechanism; Fig. 2 is a side elevation of the same; Fig. 3 is a sectional elevation on a plane indicated by the line III-III Fig. 1; Figs. 4 and 5 are sectional elevations on planes indicated respectively by the lines IV-IV and V-V Fig. 1; and Fig. 6 is a sectional plan view on planes indicated. by the line VIVI Fig. 3.

In the practice of my invention a shell or casing, preferably formed of metal, is placed on a base or foundation having formed therein a flue or passage 1 leading to the stack and flues or passages 2 and 3 leading to the regenerating chambers which are connected to opposite sides or ends of the heating or melting chambers as is the usual and well known ractice. The shell or casing is divided into hve compartments or chambers A, B, O, D and E. The chambers A and B are connected respectively to the lines 2 and 3 and both are connected by ports or openings 4 and 5 withthe stack flue. The chamber A has a valved connection with the chamber C, and the chamber B is similarly connected to the chamber D. Both chambers C and D are connected to the chamber E, which is provided with an air inlet port or opening 6. Seats 7 and 8 for the valves controlling the flow of gases to the stack flue are made in the form of troughs connected by pipes 9 with a suitable water supply to maintain a sufficient quantity of water therein to form a seal when the valves are closed. The valves 10 and 11 are provided with flanges 12 which will project into the water in the troughs when the valves are lowered to closed position. Communication between the chambers A, B and C, D is controlled by. valves 13- and 14 provided with flanges 15, which will project when the valves are lowered, into the water contained in trough-like seats 16 and 1 7.

These seats are connected by pipes 18 with a suitable water supply.

The valves 10 and 11 are provided at their ends with lugs 19 extending intochannels 20 secured to the walls of the shell or casings. Rods 21 have their lower ends detachably secured to these lugs, while their upper ends extend through the upper ends of the channels. Chains 22 have their ends connected to'the rods 21 of both valves 10 and 11', and

pass around sprocket wheels 23 and driving or shifting wheels 24, both wheels 24 being secured to a common shaft 25. By the rotation of the shaft 25 and the wheels 24 in the direction of the arrow a one of the valves as 11 will be lowered onto its seat and the valve 10 raised connecting the chamber A with the stack flue.

The sprocket wheels 23 are loosely mounted on the shafts 26 secured by brackets 27 to the shell or casing and have a driving connection with drums 28 and 29 also mounted on said shafts. The drums 28 are connected by ropes or chains 30 to cross-heads 31 which are connected as hereinafter described to the valve 13, and the drums 29 are connected by ropes or chains 32 to crossheads 33 connected to the valve 14. The cross-heads 31 and 33 are mounted on guide rods 34 secured to the casing or shell and are connected by rods 36 and 37 to the valves 13 and 14 respectively.

As the drums are rotated by the sprocket wheels 23 one of the valves as 13 will be lowered to its seat, when the wheel 24 is moved in the direction of the arrow a and the other valve 14 will be raised, thereby closing communication between chambers A and C, and connecting chambers B and D.

The valves 10 and 14 will counterbalance or nearly counterbalance the valves 11 and 13, and hence if there is carelessness in shifting the valves, the valves 10 and '14 might not be entirely closed. In order to prevent such a contingency a weighted arm 38 is so secured to the wheel 24 or shaft 25 that in shifting the valves, the weight will pass from one side of the shaft to the other, and by its added weight insure the seating of one or the other pair of valves. The shaft may be rotated to shift the valves by a crank or other suitable means.

The shell or casing is provided With doors 39 adjacent to the several valves to permit of the replacement of valves. The valves 13 and 14. rest upon the upper ends of the rods 36 and 37, and when it is desired to re move either of the valves, a bar is placed across its seat and the valve lowered on the bar. By a further downward movement of the cross-heads carrying said valve, the supporting rods will be drawn from engagement with the valve, which can be drawn out through its door and another placed in position on the bar. The cross-heads are then raised to bring the supporting rods into engagement with the valve.

In order to remove valves 1.0 and 11, the channels 20 are provided with removable end portions, 40, permitting access to the nuts 11 securing the rods 21 to the valves. After the valve has been lowered onto a bar extending across the valve seat, the nuts are removed from the rods 21 which are then drawn out of the lugs 19.

The valve is then moved laterally, the lugs passing from the channels 20 into the horizontal branch channels 42. The valve can be turned around moving the lugs out of the branch channels, and then slid out of its door 39. valve can be placed in position by a reversal of the operation described.

I claim herein as my invention:

1. A furnace having in combination two chambers connected to a port, a valve con trolling said port, means outside of the chambers for shifting the valve and rods connect ing the valve to the shifting means and arranged in grooves in the side walls of one of the chambers.

2. A valve mechanism for furnaces having in combination a pair of valves, mechanism for shifting said valves, a secondv pair of valves, mechanism for shifting the second pair of valves and adapted to be shifted by the mechanism operating the first pair of valves and a weight applied to the mechanism for shifting the first pair of valves to insure the complete shifting of all the valves.

In testimony whereof I have hereunto set my hand.

CHARLES LONGENECKER.

Witnesses:

FRANK Roenns, CnAnL'Es BARNETT.

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