US405317A - Glass-melting furnace - Google Patents

Description

Patented June 18, 1889.

W. F. MODES.

GLASS MELTING FURNAGE.

V Mam 2 M WM W? (No Moden 2 Sheets-Sheet 2` (No Model.)

W P MODES GLASS MELTING FURNAGE.

Patented June 18, 1889 UNITED STATES PATENT OFFICE.

VVILLIAM F. MODES, OF STREATOR, ILLINOIS.

GLASS-MELTING FU RNACE.

SPECIFICATION forming part of Letters Patent No. 405317, dated June 18, 1889. Application filed December-15, 1838. Serial No. 293,(373. (No model.)

To all whom it may concern Be it known that I, WILLIAM F. MODES, a citizen of the United States, and a resident of Streator, county of La Salle, and State of Illinois, have invented new and useful Improvements in Glass-Melting Furnaces, of which the following is a specification, reference being had to the accompanying drawings (two sheets) illustrating the invention, in which- Figure I is a sectionalelevation of an im'- proved glass-melting furnace for which an application for a patent for some portion thereof was filed on September 11, 1888, Serial No. 285,109, the section being taken on line 4, Fig. Il, Sheet 2; Fig. II, Sheet 2, a central longitudinal vertical section on line 5,Fig. I. Fig. III is a top View of the bridge-wall and broken secs tions' of the partitions removed from the other parts of the furnace.

This invention relates to an improved bridgewall employed in a glass-melting furnace.

The novelty of the invention consists, in brief, of a bridge-wall for dividing the glasstanks of the furnacenvhich is provided longitudinally with an internal air-channel, and on the upper side of the bridge-wall an d at each end is formed a pipe or opening, the one being for taking cold air into the bridge-wall and the Other for carrying off the heated air, and thereby keeping cold air passing through the bridge-wall by a current of air taken in at the top of one end of such wall. It has been the custom to take the hot air outof the top portion of one end of the bridge-walls to glassfurnaces, and also the custon to take the cold air in at bottom of such wall and discharge the heated air in the same manner substantially as I do 5 but practical experiments have demonstrated that the shorter the pipe which conducts the cold air to the longitudinal hollow in the wall the cooler the bridgewall will be kept. In these furnaces the shortest distance to the hollow of such wall is between the arch over the tanks and the arches over the checkerbrick-work and the gas-channels. It is therefore at these points that the air-inlet and air-exit are formed. In practice itis found that where cold air is taken in at the side of the furnace or at the bottomthereof the air becomes so heated before reachin g the bridge-wall that it serves but little pur- U is the arch over the tanks, and L L the arch` over the checker-work D D and partitions K K. WV X are the bridge-walls which separate the tanks. As a matter of convenience, the

section X of said wall is a separate portion of fire-clay united properly to the lower portion XV, which closely fits the bottom and sides G -of the tank, as clearly shown at Fig. I. The

ends of the section X extend through sides G and abut against the partitions I-I H, which separate the side air-chambers I and gas-channels T and form gas-tight joints. The ends of the sections X, however, may extend into the partitions H, if desired, as a convenient Construction. Longitudinally through the top section X of the bridge -wall is forned the usual hollow space b, and in the top of this section near an end is formed a cold-air induction port or opening O, and the port is continued up through block 3, which unites the arches L U with the top edge of the partition H and the top end portion of the section X, and also extends up through arch L. The opposite side of the furnace has a like Construction to' that detailed above, 'as also has the other end of section X of the bridge-wall, except a pipe d is made to communicate with the hollow b at that end to carry off the heated air to a stack f. The direction of the cold air coming in at O and escaping when heated is indicated by the darts n n. At Fig. II is represented a 'series of blocks 3 at one side of the furnace,between which at S the flames of gas and airpas's to the furnace. The oppositeside of the furnace has a like Construction.

The bridge-wall described is represented in a furnace which alternately takes air at side ports V' and alt-ernately takes gas through side chan nels T; but my improved bridge-wall,

IOO

by the ordinary skilled mechanic, can be applied to any ordinary two-tauk glass-nielting furnace and serve the purpose herein set forth. Those elements shown and not elainc d in this application Will be held as pertaining to the said application on file, as aforesaid.

I claim as new and dosire to secure by Letters Patentr- 1. In a glass-nelting furnace having gas and air supply chambers at each side, the combination, with a 'neiting-tank having an aircooling chanber surrounding the same, of a bridge-wall partition conposed of a perforated lower section resting on the bottom of the tank, and a hollow upper section X, projecting through the sides of the tank and united with partition-walls between the air-cooling chanber and gas-channels, substantially as described.

2. In a glass-neltingfurnacehaving gas and air supply chanbers at each side, the combination, With a inelting-tank having an aircooing chanber surrounding the same, of a bridge-Wall partition coinposed of a perforated lower section resting on the bottom of the tank, and a hollow upper section X, projecting through the sides of the tank and united with partition-walls between the air-cooling chamber and gas-Channels, said upper section connecting with flues which extend vertically through the arch, and a pipe connected to one of said fines, said pipe leading to a chinney above the level of the fine, substantially as and for the purpose specified. i

XVILLIAM F. MODE..

XVitnesses:

G. L. CHAPIN, ANNA D. .ToI1Ns'N.

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