US621577A

US621577A - Furnace-shield

Info

Publication number: US621577A
Authority: US
Publication date: 1899-03-21
Anticipated expiration: 1916-03-21

Description

Patented Mar. 2|, I899.

W. & J. LANYON. FURNACE SHIELD.'

A umim filed Sept. 23, 1898.)

2 Shaots-Sheet I.

(No Model.)

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UNITED STATES i PATENT Orrron.

WILLIAM LANYON AND JOSIAH LANYON, OF PITTSBURG, KANSAS.

FURNACE-SHIELD.

SPECIFICATION forming part of Letters Patent No. 621,577, dated March 21, 1899.

Original application filed May 25, 1898, Serial No. 631,718. Divided and this application filed September 28, 1898. Serial No. 692,130. .(No model.) I

To all whom it may concern.-

Be it known that we,WILLIAM LANYON and JOSIAH LANYON, citizens of the United States, residing at Pittsburg, in the county of Crawford and State of Kansas, have invented certain new and useful Improvements in Furnace-Shields; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to improvements in furnace-shields.

The object of our invention is to provide a furnace-shield intended for the protection of operatives in working metallurgical furnaces or the like.

Our invention is particularly adapted for use in connection with furnaceshaving a plurality of retorts--such, for example, as smelting-furnaces-and it has been particularly described in such relation in our application, Serial No. 681,718, filed May 25, 1898, of which this application-is a division.

Our invention consists in the features, details of construotion,and combination of parts, which will first be described in connection with the accompanying drawings and then particularly pointed out in-the claims.

In the drawings, Figure 1 is a front elevation of a shield embodying our invention shown in connection with one form of furnace, to which it is specially applicable; Fig. 2, an enlarged view, in elevation, of said shield and one portion'of its tracks; Fig. 3, an end elevation, and Fig. 4 a top plan view, of the same.

Referring to the drawings, it will be seen that the furnace-shield consists of an iron plate P, strengthened or stiffened in any suitable manner, as by an upper and lower horizontal bar and a series of verticall -arlower end, with one or more inward-extending arms 19", carrying rollers 19, arranged in pairs, which run on opposite sides of a lower track P fixed in any suitable manner to the furnace, preferably about the level of the furnace-floor.

This shield is further provided with a series ofopenings 19 preferably arranged in a vertical row, each hole being in the same plane with the centers of the outer ends of the corresponding retorts of the furnace with which it is to be used.

The shield is also provided with a vertical opening 19*, extending from top to bottom between two of the vertical stiffening-bars p across which extend a series of rests p formed, preferably, as transverse bars passing from one stiffening-bar to the other. The purpose of these rests will be pointed out hereinafter.-

As has been hereinbefore stated, this invention is especially advantageous in connection these furnaces after a row of retorts has been exhausted by the distillation of all the zinc contained in them it becomes necessary to remove the residue from the retorts, for which purpose the condensers must be first removed. Then the furnace-shield is brought into operation as follows: The openings 13 in the fur-' mace-shield being brought opposite the open retorts, the usual steam-nozzle, of well-known construction and operation, is inserted through the desired opening p and the refuse or the major portion thereof blown out from the retort. Any matter not removed by the steam-nozzle is scraped or pulled out by the use of the usual tools inserted through the opening at 10 which is brought opposite the in using said tool or iron. During this operation the shield protects the workman from the intense heat of the retorts and residue and also prevents the latter from falling onto the workman and burning him or his clothes.

When one vertical row of retorts has been cleaned, the shield is moved alongits tracks to bring it opposite another vertical row, and so on until all are cleaned.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-- 1. The combination,with a furnace, and an upper and a lower track arranged adjacent thereto, of a furnace-shield provided with rollers running upon the upper track and with inward-extending arms having rollers'run ning upon the lower track.

2. The combination with a plurality of retorts arranged in vertical and horizontal rows, and a track substantially parallel with the horizontal rows of retorts and adjacent to said retorts, of a furnace-shield mounted to move along said track, said furnace-shieldhaving a series of steam-nozzle openings arranged in a vertical row.

3. The combination, with a plurality of retorts, and a track adjacent thereto, of a furnace-shield arranged to run 011 said track transversely past the ends of the retorts, said furnace-shield having a series of steam-nozzle openings arranged in a vertical row so as to come opposite the respective retorts, a vertical openin g, and cross-bars extending across said vertical opening and each located so as to come opposite the lower edge of its respective retort.

In testimony whereof we a'liix our signatures in presence of two witnesses.

WILLIAM LANYON. JOSIAH LANYON. W'itnesses:

O. T. BROWN, A. O. MELLETTE.