US740404A - Ladle for carrying and tipping blast-furnace slag. - Google Patents

Description

PATENTED OCT. 6, 1 903.-

' J. H. DBWHURST. v LADLE FOR CARRYING AND TIPPING BLAST PURNAGB SLAG.

AljiLIOATION FILED AUG, 5. 1902.

N0 MODEL.

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Patented October 6, 1903.

UNITED STATES PATENT OFFICE.

JOHN HENRY DEWHURST, or SHEFFIELD, ENGLAND.

LADLE FOR CARRYING AND TIPPING- BLAST-FURNACE SLAG.

SPECIFICATION forming part of Letters Patent No. 740,404,,dated October 6, 1903.

Application filed August 5, 1902.

To aZZ whom it may concern:-

Be it known that I, JOHN HENRY DEW- HURST, a subject of the King of Great Britain and Ireland, and aresidcnt of 68 Attercliffe road, in the city of Sheflield, in the county of York, England, have invented certain new and useful Improvements in Ladies for Carrying and Tipping Blast-Furnace Slag, (for which I have filed an application fora patent in Great Britain, No. 554, hearing date J anuary 8, 1902,) of which the following is aspecification.

My invention relates to ladies for carrying and tipping blast-furnace slag which are by preference cast in one piece and both the front and back walls are provided externally with bosses and lugs to which the tippingchain is attached either direct or by means of a snatch-block, and it has been found in some cases where the lugs have been broken off that they are diflicult to replace, and in cases where the ladles are hard worked and get very hot the tension on the lugs during the process of tipping has a tendency to cause the front of the ladle to spring slightly outward, and in some instances this strain has caused the ladle to crack transversely at the front; and the object of myinvention is to obviate these defects and to further strengthen the ladle. Ieffectthisin the following manner.

The nature of my invention will be better understood on reference to the accompanying sheet of drawings, in which- Figure l is an elevation of one of my improved slag-ladles'lookingtoward the ends of the trunnions. Fig. 2 is an elevation looking toward the sides of the trunnions, Fig. 3 being a plan of the same. Fig. 4.- is a horizontal section of a part of the wall of the ladle, showing the vertical strengtheningribs. Fig. 5 is a vertical section of a part of Serial No. 118,528., (No model.)

the Wall of the ladle, showing the horizontal strengthening-ribs.

Similar letters refer to similar parts through-. out the several views.

Instead of casting lugs in the wall of the ladle, as previously described, I attach links lfor carrying the tipping block or chain to the band 1', which is secured round the ladle .under'the rim m. By this means the strain in pulling the ladle over is distributed round the walls of the ladle, where they are strengthened by the rim m instead of at one point on the front wall, as previously constructed. This arrangement of fixing the tipping connection higher on the Walls of the ladle increases the leverage and makes the tipping process proportionately easier. In case of a breakage of a link the band can be easily slackened off, the broken link removed, and another placedin position in its stead. I also strengthen the ladle by casting a horizontal rib 72 around the walls of the ladle below the upper band and similar-horizontal ribs n 02 both above and below the middle band '11, and I likewise in some cases employ vertical ribs 00 o for the further strengthening and stiifening of the Walls of the said ladle.

What I claim as my invention, and desire to secure by Letters Patent, is-

In combination with a slag pot or ladle, a band secured around the'same in close proximity to the rim, and attaching links or lugs carried by said band for attaching the operating-chain, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

JOHN HENRY DEWHUR'sT;

Witnesses:

R. Hanna RADFORD, W. H. BAIRSTO.

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