

BAIRD ^IXTLOCK (LOTMDON) LTD. 



910 



911-913 



910 1 ' Thirlmere Water Motors, suitable for driving light shafting for recording drums, stirring 

 and shaking apparatus, etc. 



The " Robinson " Patent Hot-Air Engine, English make, does not require water-jacket. 



This engine has now been on the market several years, and is thoroughly established as a success for all 

 purposes requiring small motive power. It is absolutely reliable, and needs no skilled attention. The power 

 is obtained by expansion and contraction, due to the alternate heating and cooling of the air confined in air- 

 chamber. There is no internal combustion or ignition in the cylinder, so that the parts are not subjected to 

 a severe shock, but a steady outward and inward impulse is given to the piston at each revolution of the engine. 

 Regular working is thus obtained with a minimum of friction. 



The engines are worked with great economy. When started they require no attention for long periods, 

 and then only for oiling. 



Prices and particulars of Nos. 64, 4. and 4 engines : 



For Electric Motors, see Chemical Apparatus Section. 



-CROSS STREET HATTOTST GARDETST, E- C 



192 



