US82435A

US82435A - Heney s

Info

Publication number: US82435A
Authority: US
Publication date: 1868-09-22
Anticipated expiration: 1885-09-22

Description

H. s. osBoRN. Rning Casi iron. No.58'2,43,5. 'Patented Sept. 22, 1868.

N. PETERS. Prmmnogmpmn wnshingm, 0.a

HENRY S. O'SBORN, Oli-EASTON, PENNSYLVANIA.

Letters Patent No. 82,435, dated September 22, 1868.

IMPROVEMENT IN RBPINING GAST IRON @te Segnale referrer tu in tlgrst latttts atrnt tut making ma mf tige tame.

TO ALL WHOM IT MAY'CONGERN:

Be it known that I, HENRY S. OsBonN, of Easton` in the county of Northampton, and State of Pennsylvania, have invented a new and useful Machine for Refining Melted Cast Iron in the process generally called puddling, by means of`a selfgenerating steam rabble or iron bar taking tbe place of the instrument commonly called the rabble, in refining iron in the refinery or paddling-furnace ;'and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of thesame, reference being had to the annexed drawings, making a part of this specification, in which- Figure l represents a vertical-section of the instrument in its position as being-used'by `the Workman, and

Figure 2 is the same instrument, as looked down upon from above, or in some degree a plan of. the same.

In iig. 1, B is the iron box, of strong wrought iron, cylindrical in sbape,'witl1 two Wrought-iron heads, onev into'nhich the solid handle A A screws, and the other into which the curved rabble-.end D A screws, as in the ligure. The latter, or curved rabble-end of the instrument, has a thread' chased in that end entering the steam-box, sethat a small tube, also of wrought iron, maybe sci-ewedintoit, which smaller tube passes directly into the steam-box, and reaches to the supply-hole at C, fig. 1, to preventwaterfrom passing down to the bar-end D. l I l xB z represents the-height of water when using the instrument.

Fig. 2 represents the instrument as seen from above, or as looked down upon. In this the form of the end D D is plainly seen with the perforations. These perforations may be of any number, such that when the steam is generated at full pressure it may be delivered under a pressure ofl not muchmore than ten to fifteen pounds to the inch, as, by experiments, it is found to be most effective at that pressure or less. This crosspiece must be plain and smooth, and screwed on, or so fastened as to allow of being easily disengaged in the usuallway, by a ,tapfrom a small hammer, from any slag or cirnier which may cling to it. l

The workman introduces the rabble, just before needing to puddle, (regulating the time by experience,)'

and, Whenthe proper time arrivesintroduces into the molten iron the end- D D, fig. 2, and, when the steam Y is freely passing out, draws it backward and forward and around until he sees that the iron shows decided signs of coming to nature, always remembering that the end, D, is never to be submerged under the liquid slag and molten material until the steam is passing out from D D freely.

A heat, which, with the ordinary rabble, requires twenty-five minut-s, will generally be suiciently d'ecarbonized in less than seven minutes, and the mass more thoroughly treated, and will make JLiner and more solidgrained iron.'

4What I claim, isl p i The self-generating steam-rabble, or the rabble in which the steam is generated'by the Vheat surrounding the rabble, inthe manner and for the purposes substantially as above described.

i i HENRY S. OSBORN.

'Witnesses WILLIAM YOUNG, G. W. STOUT.