BAIRD &TATLOCK (LONDON) LTD. 





2912 



2914 



2912 s Meker Crucible Furnace, Type C, for use with compressed air, for temperatures up to 

 1600 and 1700 -C. = (2912 and 3092 F.) 



The illustration shows the general appearance of the " Type C " Meker furnace, with the crucible " B " and the 

 fireclay block " A," on which the crucible stands. This fireclay block is made of a very refractory clay, and is 

 shaped with a trough round its upper surface, so that if the crucible should break, the metal is collected in this 

 trough. The furnace lid is mounted on a carriage, which can be easily rolled to one side on guide rails. 



Fireclay crucibles cannot be made to stand at the extremely high temperatures which can be obtained in this 

 type of furnace. We therefore supply plumbago crucibles usually, although if requested, we can supply fireclay 

 crucibles which will be quite satisfactory up to about 1500 C. (2732 F.) 



A good pressure of air, say 10 or 15 Ibs. per square inch (0.7 to i.o kilograms per square cm.), is necessary to 

 obtain the very high temperatures. Size of crucible 100 mm. to 120 mm. high. 



Price complete 



2913 s Extra fireclay crucibles, lOd. each ; extra plumbago crucibles, I/- each. 



Meker Tube Furnace, Type S, requiring compressed air for temperatures up to 155 to 

 1650 C. = 2822-3002 F. 



Fig. 2914 illustrates the type " S " furnace, and shows a spare tube lying in front. It will be seen that the 

 flame comes in at the side, and therefore rotates around the tube like a screw thread from one end to the other, 

 escaping in a vertical direction. With this furnace a temperature of 1500 C. can be obtained in 15 minutes, if a 

 good air pressure is available. Our stock furnaces are usually closed at the end of the tube opposite the door, but 

 we can supply them with the tube open at both ends if specially requested to. 



2914 s Size No. 4 S. Internal dimension of tube 40 millimetres diameter by 165 millimetres long 



Price spare tubes, 4/9 

 2915 s Size No. 5 S. Internal dimension of tube 65 millimetres diameter by 230 millimetres long 



Price spare tubes, 5/9 

 2916 s Size No. 6 S. Internal dimension of tube 120 millimetres diameter by 320 millimetres long 



2917 s Special Tube Furnace, Type T, not requiring an air blast. 

 Price complete with burner 



We can supply to order special tube furnace in which the tube is heated by ten ordinary No. 4 Meker burners, 

 and therefore no air blast is required. The temperature limit with this type of furnace is about 1200 C. Internal 

 diameter of tube 5 cm., length 39 cm. 



Muffle Furnace, Type D (requiring compressed air). 



Although furnaces of this type are not illustrated we can supply them to order. The temperature attainable 

 is from 1550 to 1650 C. with I kilogram per square centimetre (15 Ibs. per square inch) air pressure. 



660 



8 13 



26 5 



12 17 



2918 s Size No. 2 D. 

 2919 s Size No. 40. 



Muffle dimensions 40 by 20 by 60 millimetres 

 65 by 40 by 100 



330 

 4 14 6 



CROSS STRET HATTOTST GARDETST, E-C 



