US537029A - Corroding-pot - Google Patents

Description

H. M. GABEL.

GORRODING POT.

(No Model.)

No. 537,029. Patented Apr. 9, 1895.

Z Y swam cf m wA M. W W 2U Q 2 Witnesses:

- HUNETE STATES PATENT FFIQE.

HENRY MNGABEL, OF CINCINNATI, OHIO.

CORRODlNG-POT.

SPECIFICATION forming part of Letters Patent No. 537,029, dated April 9, 1895.

Application filed December 1'7, 1894. Serial No. 532,025. (No model.)

To all whom it may concern:

Be it known that I, HENRY M. GABEL, of Avondale, (Oincinnati,) Hamilton county, Ohio, have invented certain new and useful Improvements in Corroding-Pots, of which the following is a specification.

This invention pertains to improvements in corroding pots for use in the manufacture of white lead.

In ordinary eorroding pots the pots are very apt to come in contact with each other sidewise and thus interfere with circulation between them, the result being the defective working of a portion of the corroding house. If the pots be spaced apart sidewise in order to secure circulation much special care in setting is required. Again, with the usual pots, the boards placed over their tops to receive the succeeding hot-bed and pots, virtually closes the tops of the pots and prevents circulation through the pots. The use of f urring timbers to keep the boards away from the tops of the pots involves additional expense for material and labor and concentrates the pressure on the pots and results in serious breakage. Again, with ordinary pots, with closed bottoms, the circulation through the lead within the pots can only take place through the apertures formedin the side walls of the pots, which circulation is anything but free, and the perforations weaken the pots.

Again, in ordinary pots, the form of the bot-' toms is such that when they are placed upon the hot-beds they so compact and solidify the material ofthe hot-beds as to interfere with proper circulation through the material of the beds.

I improve corroding pots in all the respects mentioned, and my improvements will be readily understood from the following description taken in connection with the accompany drawings, in which-- Figure 1, is a plan of acorroding pot exemplifying my invention; and Fig. 2, is a vertical diametrical section of the same.

In the drawings, 1, indicates the body-wall the opening 3; 5, the annular acid cup whose inner wall is formed by the flange 4 6, notches in the top of flange 4, forming overflows for the acid and forming also circulation openings under the lowermost lead buckle in the pot; 7, a belt-like enlargment at the base of the pot; 8, exterior overflow from the acid cup; 9, notches in the rim of the pot, and 10, projections formed by the unsuppressed portions of the rimof the pot.

The pots are to be constructed of the usual material and of about the usual dimensions and are to be set upon the hot-bed as usual. The extended bottom of the pot gives a large supporting area upon the hot-bed and that portion of the hot-bed immediately below the opening 3 will be substantially free from compression and therefore left open and porous. The extended bottomsof the pots give them a large steadying base-support upon the yielding hot-bed. The projection of the belt 7 permits the pots to be set in contact with each other and still insures free and liberal spaces for circulation along the sides and entirely around the bodies of the pots, being impossible for the body-walls of the pots to come in' contact with each other and shut off the circulation passages. The lowermost series of pots having been set and charged with acid, as usual, they are properly filled with lead. The usual boards are then placed over the pots to receive the succeeding hot-bed and series of pets, &c., as usual. The boards aresupported by the projections 10 between which there is ample circulation space formed by the notches 9 leading 'to the space over the lead contained within the pot. The opening 3 gives 'free circulation up through the pot to the lead, there thus being free circulation around the pots and up through the lead in the pots,.and that portion of thehot-bed below the center of the mass of lead in the. pot is the bodies of neighboring pots, substantially as set forth.

2. A ventilating corroding pot having an inthe contents of the pot through the surroundterior acid-cup having projections upon its ing acid, substantially as set forth. rim and provided with a perforated bottom to 4. A ventilating corroding pot provided permit of circulation directly upward from a withabottom having a perforation margined I 5 5 supporting hot-bed to the contents of the pot, by an upstanding flange forming an inner rim substantially as set forth. for an acid-cup and a support; for the metallic 3. A ventilating oorroding pot having an incontents of the pot, substantially as set forth. terior annular acid-cu p having projections HENRY M. GABEL. upon its rim and provided with a central per- \Vitnesses: IO foration in its bottom to permit of circulation BERT L. BALDWIN, directly upward from asupporting hot-bed to a G. W. SIMPKINSON.

Images