US294559A - Apparatus for treating sheet-iron - Google Patents

Description

(No Milam.)

l 2 ShePtS-Slleet 1.. W. D. WOOD@ .APPARATUS PoR TREATING SHEET- PRONQ P' M 294,559. Patented Mar. .4, 1884;

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APPARATUS FOR TREATING SHEET-mont SPECIFICA'! ION forming part of Letters Patent No. 294,559, dated March 4, 1884. Application filed Seplemher 26, 1883. (No model.)

T all who/11, t mag/'concern Be it known that I, W. Dnwnns WOOD, a citizen of the United States, residing at Pittsburg, county of Allegheny, State of Pennsyl- Vania, have invented or discovered a new and useful Improvement in Apparatus for rlreating Sheet-Iron; and I do hereby declare the following to be a full, clear, concise, and exact description thereof, reference being had to the my apparatus.

accompanying drawings, making part of this specification, in which-dike letters indicating like parts Figure 1, Sheet l, isa perspective view of Fig. 2, Sheet 2, is an enlarged detail view, certain parts being shown in scction. Fig. 3, Sheet 2, shows the hingedjoint, the side ot' the joint being broken away to show the steam-ports.

In an application, No. 96,919, filed June 21, 1883, I have described and claimed a process of manufacturing what is knownin the art sometimes as Russia and sometimes as planished7 sheet-iron. This process consists, .in general terms, in forming or building up on the surfaces of the sheet a comparativelyheavy oxide coating, which is subsequently revived, as it is called, or converted into nascent iron, and which latter is conv'erted into a black or magnetic oxide, such thatby .subseqent heat-ingand hammering the described polished surface is produced. One of the steps of this process consists in subjecting the sheets, just as they are taken from the reheating or annealingi'urnace, and at a brightred heat, and covered with ashes and unconsumed charcoal-Avith which latter material they were packed previously to being heated or baked-to the action ot'superheated steam,

thereby producing a black or magnetic oxide on the surfaces of the sheets. The sheets are then immediately-to be chilled or' cooled, so as to reduce the surface of the sheets to a temperature below that at which any further oxidation or injurious action under atmospheric' influence can take place. This chilling may be effect-ed in various wa'ysj-as, for instance, sponging off the sheets with cold water, or by means ot' broom or sprinkling deviceattached to the steam-applying apparatus.

My present invention relates to an apparavtus for applying steam against or onthe sheetiron, and for sprinkling and cleaning off the sheets after being acted on by the steam.`

4are then turned over onto an adjoining and similar bed, andthe other side of the sheet is similarly treated.

To insure a complete and uniform distribution of the steam, I employ a transverse horizontal pipe, a, of a length at least equal to the breadth ofthe sheets, and provided with perforations or fan-tailed nozzles c', which are constructed with long narrow slits, so that the steam will be directed and distributed in broad thin sheets against or on the sheets, so as to be applied wit-h practical uniformity over the entire surface. The perforations or nozzles are arranged in such close proximity to each other that the sheefrsjof steam will cross each other, and at such angle to the sheets that the ashes, Src., will be raised up and blown oit' from the sheets by the action of the steam,thereby insuring the contact of the steam with every part of the surface of the sheet. This transverse pipe a is connected bya short elbow, c, toone part of a hollow-hinged coupling, d, which may be of any known construction suitable for the purpose, the' vone shown in Fig. 3 being of the swing j oiut style or pattern, wherein the abutting walls or diaphragms d are provided with ports or openings, which,by turning one part ofthe coupling, can be brought intoV register with each other. By this construction I enabled to cause a flow 4of steam from the nozzles cby a slight turn of one part of the coupling on the rod d3, which holds the parts of the coupling together. The other part of this coupling d is connected by an elbow to the long vertical pipe e, which,at its upper end,is connected by a hollowhinged coupling, f, tol one end of a horizontal pipe, e. The other end of this pipe e is also connected by a similar hollow coupling, f', to the pipe e, which is connected with a suitable steam generator and superheater. By this arrangement v of pipes and couplings I am enabled to raise andlower the vtransverse pipe a, to bring it the proper distance from vthe pack on the table A. The pipe eis of such a length and is IOO ' tion. Thislimited coolingis important, for the pivoted at such a distance from the bed A l that the are of the circle in which the trans verse pipe a swings is practically parallel to the bed.

To swing the transverse pipe a and to turn itvertically in its hinged coupling d, I employ the handle g, attached to the elbow c between the coupling and the transverse pipe. To the handle g, just in the rear of the elbow c, is secured a short pipe-elbow, Il, to the upper end of which is attached a length of hose, h', leading to a suitable Watersupply. The other end of this elbow 71r is suitably secured to one of a pair of clamp-bars, Z, arranged parallel to the transverse pipe u, and between these clampbars is secured the broom on, the two bars of the clamp being drawn together by suitable bolts and nuts. On each side of this broom, and at the top thereof, are arranged transverse perforated pipes a ando, by which water is supplied and directed on the broom in such quantities as to keep it thoroughly wet. These transverse water-pipes a and o are supported by and connected to the ,pipe-elbow h by means of short pipes p and q. To hold these devices at the proper height and aid in adjusting them up and down, I attach to the handleg a chain, i', which passes up over a pulley, s, and down over another pulley, i, and has a weight, 1r, attached to its free end. In the pipes e and zv are arranged stop-cocks .t and y, whereby the flow of steam and water is` regulated. After the sheets are placed on the bed A, the work man slightly raises the handle f/ to turn one part otthe coupling d, thereby bringing the ports d into line with each other, and allowing the steam to escape from the nozzles. He then swings the whole device forward over the sheets, thus directing the steam to every part of the sheets and insuring a uniform formation of a black or magnetic oxide over the whole surface. The broo1n,whieh immediately follows, chills the sheets on the side under operation and sweeps off from the sheets all the residue of ashes and uneonsumed charcoal thereon, leaving the sheets in condition for further operation. The broom, in addition to cleaning off the sheets, acts as a distributer of the water, bringing it into contact with every part of the sheet, but in such limited qualitities as to chill only the surface under operareason that the other sides of the sheets are to be similarly treated.

In some respects the construction ofthe devices thus described may be modified or changed without any substantial departure from the scope of the present invention, and more particularly as regards the form and distribution of the iet openings or nozzles forthe supply and distribution of the superheated steam, and as regards the construct-ion of the water-distributing mechanism.

That I claim herein as my invention is l. In an apparatus for treating sheet-iron, the combination of a steam supply and distributing mechanism and a cooling or chillingV mechanism, arranged for operation iu immediat-e succession along the surface of the sheet under treatment, substantially as set forth.

2. An apparatus for applying superheated steamto sheet-iron su rfaees,havin gatransverse pipe, a, provided with suitable jet-openings, for the uniform distribution of the steam over the surface of the sheet, and a valve, d, for turning on or shutting off the steamsupply, in combination with means for opening and closing the valve at will and reciprocating the transverse pipe over the surface of the sheet, substantially as set forth.

3. In an apparatus for treating sheet-iron, the combination of the steam supply and distributing mechanism, a water supply and distributing mechanism, and a mechanism for sweeping off the sheets by frictional contact therewith, arranged for operation along the surface of the sheet under treatment, substantially as set forth.

7t. In an apparatus for treating sheet-iron, a steam supply and distributing mechanism and a water supply and distributing mechanism connected with the same operatinghandle, g, in combination with a flexible supply to each, substantially as set forth.

In an apparatus for treating sheet-iron, the combination of the transverse pipe a, having perforatious or nozzles, the pipe e, the perforated pipe o, and the hose h', substantially as set forth.

(j. In an apparatus for treating shectiron, the combination ofthe transverse pipe a, having perforations or nozzles, the hinged and ported coupling d, the pipe e, the perforated pipe o, the flexible pipe h', and the handle y, substantially as set forth.

In testimony whereof I have hereunto set myr hand.

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