BAIRD &TATLOCK (LOM)ON) LTD. 



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BAIKB& TATLtlCK 



Automatic Gas Regulator (Registered No. 

 536814) as fitted to Incubator. 



311-314 



Douduey's Cool Incubator, with our Improved Automatic Gas Regulator (Registered 

 No. 536814). 



This Incubator is made of well-seasoned oak, with uralite panels, with an inner water-jacket 

 of copper. It is fitted with double doors (inner of glass), and the inner chamber is carefully insulated 

 by a jacket of slag wool. It is sent out complete, fitted with the new pattern gas regulator, ther- 

 mometer, and burner, ready for connection to gas supply. These Incubators are sent out to regu- 

 late at 22C., but other higher temperatures may be obtained by the substitution of a capsule 

 having the necessary boiling point. The capsules we can supply to suit any ordinary Incubator 

 temperature, each suitable for a range of 4 C. 



311 s Size No. i. 



312 s No. 2. 



313 s No. 2A. 



314* No. 3. 



Inside size of Chamber Height, 12 in. ; width, 10 in. 



,, ,, ,, 16 in. ; ,, 14 in. 



20 in. ; 16 in. 



36 in. ; 18 in. 



back to front, 10 in. 



,, ,, 14 in. 



,, 16 in. 



18 in. 



INSTRUCTIONS FOR FITTING UP DOUDNEY'S COOL INCUBATOR. 



750 

 10 10 

 14 10 

 16 



The incubator should, if possible, be placed in a room the temperature of which is a few degrees lower than the temperature the incubator 

 is required to work at. 



Close the bottom tap on side of incubator, unscrew brass cap at top, and fill chamber with water until it flows out at open tube at other 

 side of incubator. 



Connect gas supply to coupling B of regulator by metal composition pipe or indiarubber tube. This gas supply pipe should be provided 

 with a tap. Turn on gas supply and light burner under incubator. 



When the required temperature is reached, the gas will be lowered by the expansion of the capsule C. 

 temperature required is indicated on the thermometer, turn the disc D to the left until flame is just lowered. 

 the expansion of capsule before the required temperature is reached, turn disc D to the right. 



The byepass screw F should now be adjusted so that the gas flame is further lowered until it is only about 



To provide for the regulating of the incubator in warm weather connect the tap E to water supply, and allow water to flow very gently 

 through the chamber and out by the open tube at the side. During colder weather the water supply will be unnecessary. 



If it is required to remove the capsule C, open doors of incubator and push capsule towards side of incubator until the small stud is clear 

 of plate-holder G, then slide out plate-holder G, when capsule will drop out. 



If gas is not lowered when the 

 Should the flame be lowered by 



in. high. 



CROSS STREET HATTCTN GARDETST, E- C 



