US1358816A - Crucible - Google Patents

Description

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MEUR E. BELMS, h-*as and resldent Cammy of Hamp- "f have invented aevemagxts in .g 1s a' spec).-

u crc-ucibes Such as 0i' metals,

Henin shovma compedesa 6, 'Ffm shell. gradu exiema?. f the to?, si,

cordingy, by means of the present impmv ment, a ,gia-laf, saving may be eecte 'm he cost of Such pois or crucibes. 'Fmtw' more, has been found filmt the ne may be permit@ #to freeze in .the int-em metallic Shelli Whmi; atress of its' phyf calstructure. baling out the salts 'vvhile in a Iliquid 'state is thus obviate'd lwith a commensurate saving of time. and labor. v

From?,I the `fore,f ,oing description, considered infconnection With the accompanying drawing, .the construction, manner of use and several advantages of 'the' present invention .willbeffullyunderstood. The pot Connection With various types of furnaces, and it. is to vbe understood that the disclosure in the accompanying drawing is merely illustrative of one practical concept of the invention. The 'initial cost of construction and installation .is relatively smallin, comparison with they saving'which is realized by lthe greatly increasedy the cralcibl crucible is required'at infrequent intervals.-

l have above described what I halve foundto be a very' practical and satisfactory em lbodiinent'of theA invention, but it ist be` :understoodthat the". Crucible may, also .be ex'- 'mpliied' in numerous other.. alternative constructions, and' I accordingly reserve. the privilege ofxadopting all' such Vlegitimate changes as 'may be fairly embodied Within the spirit andf'scopeg'of thel ,invention as viclaimed.

' iflamrf -5 v 1. A"cruciblehaving an external Wall or Crucible. 'cam of course, be constructed in. vmany diferentshapes and sizes tor use 1n period of usefulness of. 1 e, so that 're lacement byV a new 'more or less resistant .to the attacks of oliidizing atmospheres, and a removable nonrefractory lining for said Wall neutral to the action of chemical salts.

2. A Crucible having an external wall more or less resistant to the attacks of oxidizing'atmospheres, and an inner Wall of nonfrefractory material adapted to be positioned within said external wall, and protected thereby from the attacks of oxidizing atmospheres, said internal Wall beingl removable x'vithout disturbing the external Wall, yin order to discharge its contents, and adapted to be then replaced within'the 'exH ternal Wall to receive a new charge.

3. A Crucible havingl an. external wall of non-oxidizing material, and a removable base metal4 lining for said Wall.

4. A Crucible consisting of a removable fferrous metalfinternal shell and an external shell of refractory material.

Y 5. A crucible consisting of a non-oxiflla fipgexternal shell and an internal ferrous instal shell neutral to the action of chemical salts and having its Wall spaced from the Wall of the external shell.

'6. A Crucible. consisting of an external shell of refractory material, and an internal err'us metal shell having its Wall spaced from the Wall of said external shell.

In testimony that I claim the foregoing as my invention I have signed my name.

ARTHUR E. BELLES.

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