US1315206A - William h - Google Patents

Description

W. H. BRiSTOL.

ART OF MELTING METALS. APPLIcA'TmN man DEC.24.191B.

Patented Sept. 9,1919;

III IV Be it known that}, Nimitz WILLIAM H. ensues; o n Werensnns, eons-incomes, nssmnon so one enisron 1 censure, on WATEEBUBY, GQEZNEGTIGUT, n onerous ion. comm ssions.

5.7511 95 MEETING METALS.

Lemons.

To all whom it may concern;

H. Bnrsron,

a citizen of the United Ststes,snd av resident the gnse eulty is experienced such products over the metal, the action is of Waterbury, in the countyof New Haven and State of Connecticut, have invented cer- 'tain new end-useful Improyements in the Art of Melting Metals, of which the following is a specification. i

The invention relates to themelting and alloying of rnetels, end is directed more particularlytc the prevention of oxidation of the same during the melt. It is known to provide forthis purpose ous products of combustion of the fuel empioyed to efi ect the melt, but di in properly directing efficient, end, 7 furthernot setisfnctoiy nor of combustion tend to invention to provide and so direct a suiteble sndeconomical medium that the highly desirable result of practicelly obviating oxidation is attained without these detrimental features being present,

said method effecting greet saving and perinitting of the carrying on of the melting in a more rapid and safe manner. To this end, there isdirected over the surface of the metal, to proyidea suitable envelop to exclude-vtlie air, it stream of steam, preferably corresponding parts vicW j' dry and superheated, and in such manner es to afiord e continuous supply of fresh steamand Without interfering with the simultaneens operation of the various stirring devices required for the proper inixing of the metal or metals.

understood when I with the accompanying drawings, 111

Figure 1 is e verticslse'ction through one type of furnace to which the new process me. be applied.

Figs, 2 and 3 to which the process may be applied.

.Similar characters of reference designate throughout the several to'tiie drawings, and more pan tic ileily tc" I thereof. 13 de ignates. a

opening 15 as by a sulated pipe or nozzle 18 which, as sfore.

illustrate, respectively,- a, transverse and e longitudinal section of e. resistor type ofelectric furnace, illustrating lone form 0%3190l31i6 furnace en example of this form Specification 02 Letters Patent. Patented Sept, 5?, notification fllei I-Eceember en, 3923, I Serial 35o. 9233,3132. v

the latter to remove the products of com bustion The furnace is designed to be closedby means of e removable top or cover l'which may be ino -e'd over the top of the furnace to provide an opening 15, or the latter may be formed directly in the said cover. Opening 15, i'szn'areover Willpemnit of the introduction of the usuel and wellknown stirring and like instruments (not shown) employed'in the melting and elioymg. v

Upon the bed of coal 13 rests a suitable retainer as the pot or crucible 16 for the metal or metals 17 to be melted. or alloyed,

ell of-W'nich is Well understood and forms no particular pertoii'tlie present invention.

The invention relates-more particularly to the provision of a suitable non-oxidizing medium to envelop the molten metal 17,

ficulty would be experienced as the moisture 7 would be immediately converted into steam. The supply of tliiszsteem' may be economi-' cally obtained and is readily controlled, the some being furnished, generally, in a con-- tinuons stream 'durine the period of melt The nature of the invention will be best; end particularly during" theintroduction of described in connection an alloying metal. The supply of steam may be conveniently introduced through the suitable thermally inseid, may be directed into the furnace space 19 or into the upper portion of the crucible 163, the spent steam being drawn off through the fine 12.

"Although the invention has been connection with only one type of fuel fired furnace, it is toloe understood that the some is applicable to various Well-known types, also to the electric type of furnace, vmore P'aTi/lCIE iSI'lj/" SlZiOWII in Figs. 2 and 3. As

offurnnce, erefiistotr type is shown, .2

shown in same com'pmsmg' Ml? interior is heated thi'ougil a suitable K'esis {W ssurce of heat.

mm well-lmown mstrmnents (not shown} an ample-3 9d in the memng and alicymg.

member such as a carbsn rcd wlfzieh mountedin any-conv'canient and Wei 11121111161. This form afi'ords awry satisfacmry 11m ace in that the temperature themof is rez'ldily centro lled, the heat being re'iecwd from the inner surface 0f the awa to the metal 26:; and, furthermore, the steam. wiil 110$ have a tendency to extinguish the The main, mam/aver, is lxaneficiaE 110: only with respeais. to the materials being audited, but also in. preventing the oxidation of ,the resistor member 31, and consequenfly prolenging the life 01"" same and reducing the expense 0f operation. For the preparation of alloys, particularly brass in' its various proportions, a furnace-wither eiectfic 61 fuel heafiedthus saurd against oxidaiion 01? its melt, is 0f h ea'tesi; vain! "midis: the proce.% 0E datum thereoik, whuzh COTKSESQLS sxaam the-malt of 1 M" P a preventing oxidamm themof, id} (1011. in exchi 11;: air naa'efimm fi :stream 0ft 9am 0V9? The, i'i'iBLhGd 0f prevanifiing exidwiion mef' i Fae-h1g3 melted ix a fmmgs lmvinga gas mi-i .1 2.115% 21p opefllng for 116 insereign of suitzibie stilfrin, apym'aius, which 00515? in diiectizl & 5 621m steam 1112011941 an] 0'5"; fling W- He the metal is being; magi-tea, @115; causing {he span: steam ta Eezwe through the said ou' alet.

Signe "Waterbury in the can? 0}} New am nfConnecticut $111 21 6, 2.3 of Dacembeig A. 19 f T "$5 meizzh tha pmcess of

Images