456 



Oil Engines. 



hand-lever //, when the gaseous pressure from the vessel K 

 acting on the piston starts the engine. 



Messrs. Drake & Fletcher are the makers of an oil engine 

 for fixed and portable work which in its main features is very 

 much like that of the engine formerly known as the " Trusty " 

 engine, and somewhat similar to that of Messrs. Clayton & 

 Shuttleworth, but Messrs. Drake & Fletcher prefer to use a 

 continuously acting lamp flame for heating the ignition tube, 

 and adventitiously the vapouriser, in order to secure controllable 

 period of ignition with suitable high compression pressure. 

 They are also making a vertical type of engine enclosed and 

 provided with seats and steering arrangement as an agricultural 

 locomotive for the general purposes of barn and field work. 



Messrs. J. & F. Howard are also making both fixed and portable 

 oil engines with commendably simple and easily accessible form 

 of vapouriser, in which a continuous heating flame is used for it 

 and the ignition tube. Easy access to the vapouriser and port 

 spaces, and even the combustion chamber, is of importance 

 in most engines. 



Messrs. Nayler & Co. are among those whose engines were 

 entered in the last competitive trials of portable oil engines by 

 the Royal Agricultural Society, and although not so successful 

 at the trials as some of the other makers, they presented a 

 simple, well-made engine of the lamp-heated, ignition tube and 

 vapouriser class. 



The " Gardner " engines, in their various sizes and forms, 

 horizontal and vertical, are made for using petroleum oils of the 

 usual densities, and also the lighter oils or petroleum spirits and 

 benzoline, and for alcohol. Their engines are of the separately 

 heated ignition tube type, and are of good design and workman- 

 ship. The oil supply is measured and controlled by the governor, 

 and, like Messrs. Crossley and some others, Messrs. Gardner 

 & Sons find the separately heated ignition tube desirable for 

 securing the best working conditions. 



" Kynoch, Limited," are the makers of what was formerly 

 known as the" Forward " oil engine, now made with some modi- 

 fications both as fixed and portable engines, and fitted with a 

 simple form of starter, based on the principle adopted in some 

 well-known forms of simple gas engine starters. The engine is 



