No. 625,252. ~No Model.) Patented May 16, 1899. H. ELDRIDGE, D. J. CLARK & S. BLUM. ELECT~CAL FURNACE. (Appllc~ti~ filed ~a~. I~ 189~) 2 Shee~--S~ I, (No Model.) Patented May 16, 1899. H. ELDRIDGE, D; J. CLARK & S. BLUM, ELECTRICAL FURNACE. 2 She~s--$h~t 2. UNITED STATES PATENT: HILLIARY ELDRIDG~ DANIEL JOHNSON CLARK, AND SYLVAIN BLUM, OF GALWESTO~ TEXAS. ELECTRICAL FURNACE, SPECIFICATION fb~min~ pa~t bf Letter~ Patent N~ 625,~52, date~ l~a~ 16, 1899. 6fi~u~ applicati~ filed Se~mb~ 29, 1897, gefi~ N~ 653,450. Divid~ and this appli~ filed Ennui# 1~ 189~. SefiMNo. 667i]01. (No~M2 ~o ~l~ zvho~ i~ ~y concern: Be it known that we, HILLIARY ELDRIDGE, DANIEL JOHNSON CLARK, and SYLVAIN BLU~, ci~zens of the United States, residing at Gal- ~ veston, in ~te county of Galveston and State of Texas, haw invented a new and useful E~ct~cal Furnace, of which the following ~ a spe~fica~on. Our inven~on relates to improvemeu~ in ~o electrical furnaces or retorts, and it consti- tutes a division of ~]e prior application flied by us on September 2~ 139L Serial No. 65~45~ The electrical furnace which forms the sub- jecNmatter of the present applica~on is es- ~ penally deigned for use in connec~on with an apparatus for manufacturing cal~um ca~ bid and illuminaMng or hea~ng ga~ substau- ~ally as disclosed in our prior applica~on to which reference has been made; but it will ~o be understood that we do not restrict our- selves to this specific employment of the elec- t~cal furnace or retor~ because we are aware that it may be used advantageou~y in other arts. ~ One of the objects that we have]n view ~ to provide means arranged to secure easy access to the retor~chamber for the purpose of cha~g - ingthe substance therein to be treated by the heat from the electric ar~ So A further object is to se arrange the several working par~ of the improved furnace that they may be manipulated or controMed with ease and at the same time to provide for the collecMon and discharge of the fumes and 3~ gases which may arise from the furnace retort or chamber du~ng the treatment of the charge therein. ~V~hthese ends in view our inven~on con- sists in the combina~on, wkh an inclosed fur- 4o nace-cha~nber, of a Vertical]y-adj ustable