BAIRD &TATLOCK (LONDON) LTD. 



6218 



6222 



6218 T Furnace, the Morgan-Harvey, double muffle, for melting, assaying, etc. . . 5 



6219 T Price complete with chimney and elbow piece . . . . 6 10 



6220 T Price of extra linings complete 

 622 1 T Price of extra muffles to suit .. .. .. .. .. each 4 



This furnace has been designed to meet in a simple, durable, and portable form all the requirements of the 

 assayer. 



It can be used for muffle or crucible work, and accommodates either two Battersea muffles J (12 by 6 by 4), 

 salamander crucibles up to No. 30 (60 Ibs. capacity), Battersea round crucible P, or a number of smaller crucibles. 



The Morgan-Harvey furnace consists of stout sheet-iron casing, with cast-iron and fire-clay fittings, and 

 lined with strong fire-clay slabs with rebated edges, ensuring tight joints, which are kept in position by the top 

 plate being screwed down. 



The grate of the furnace consists of nine wrought-iron bars fitted diagonally into a cast-iron frame, and can 

 readily be removed or cleaned ; the bars, being of ordinary size and section, can be renewed without difficulty. 



The covers are of fire-clay, iron bound, with falling handles to economise space in packing. 



When used as a muffle furnace it is so arranged that while the lower muffle is used for scoiification, cupellation 

 may be carried on in the upper. To adapt the furnace for fusion work, remove muffles, block apertures with 

 stoppers, and close doors. 



The furnace cannot get out of order, and as all fittings are movable they can be duplicated in case of breakage. 



The total height is 23i in. ; depth, back to front, i6t in. ; and width, i6l in. ; diameter of chimney collar, gin. 

 6222 T Furnace, portable prospector's . . . . . . . . . . . . ..40 



6223 1 Price with chimney and elbow piece . . . . . . . . . . ..50 



6224 T Muffles to suit . . . . . . . . . . . . . . . . each 4 



This furnace has been designed to meet in a simple, durable, and portable form all the requirements of the 

 prospector. 



It can be used for muffle or crucible work, and accommodates Battersea muffle J (12 by 6 by 4 in.), salamander 

 crucible No. 20 (i.e., 40 Ibs. capacity), or Battersea crucible N. 



The furnace consists of strong fire-clay slabs with rebated edges, ensuring tight joints, which are kept in position 

 by top plate being screwed down. The casing is of stout sheet-iron with removable fittings. 



FOR ASSAYING. 



The muffle door c is provided with a mica sight-hole through which the contents of muffle can be watched. 

 The slab K is supported by the projecting ends of the fire-bars, and forms a convenient shelf on which to place the 

 scorifiers, etc. 



FOR MELTING. 



The furnace can be used for crucibles by closing the muffle aperture with the clay stopper N, and the contents 

 of the crucible can be inspected from time to time through the sight- hole A, thus obviating the necessity of removing 

 the furnace cover. 



The total height of the furnace is 28 in. ; depth, back to front, 14 in. ; and width, 16 in. ; diameter of chimney 

 collar, 5 in. Total weight of furnace complete, 130 Ibs. 



The grate, consisting of nine wrought-iron bars fitted diagonally into a cast-iron frame, can readily be removed 

 or cleaned ; the bars, being of ordinary size and section, can be renewed without difficulty. 



The cover is of fire-clay, iron bound, with falling handle to economise space in packing. 



The furnace cannot get out of order, and as all the fittings are removable, they can be duplicated in case of 

 breakage. 



14 -CROSS STREET HATTOT GARDE1ST, E-C 



1138 



