Iviii Prizes for Implements and Machinery . 



Turnip-Cutter Three Sovereigns. 



Ditto for hand-power Three Sovereigns. 



Eoot-Pulper Three Sovereigns. 



Chum Three Sovereigns. 



Cheese-making Apparatus Three Sovereigns. 



Cheese-Press Three Sovereigns. 



Miscellaneous Awards for Essential Improve-) q., m ,1 l 



ments in any of the Implements or Ma- 1 r^^^J^^ ^f* 



chinery exhibited ] ^' 



Any new Implement, such sum as the Council, 



on the Report of the Judges, may think 



proper to award-. 



SPECIAL CONDITIONS. 



(1). The Portable Steam-exgixe. 



1. One of the portable steam-engines must not be more than eight horses 

 nominal power, nor must the diameter of the cylinder be more than 9| inclies. 

 The one above eight must not exceed twelve horses nominal power, must have 

 two cylinders, and the diameter of each cylinder nrast not exceed 8 inches. 



2. The tubes in the boiler must iiot be less than 1\ inches diameter, not 

 less than No. 12 on the metal-gauge in thickness, nor placed a less distance 

 apart than 1 inch from each other. The tube-plates must be made of either 

 " Lowmoor " or " Bowling" iron, and the " trade mark " of the iron company 

 must be legible on each plate. 



3. ITie exhibitor will be required to furnish to the Society, along with the 

 si)ecification, a longitudinal and transverse sectional plan of the boiler, showing 

 the action of the fire upon the fines, and also to state in writing ; — 



(o) The thickness and quality of the boiler plates. 



(6) The diameter of the cylinder. 



(c) The length of the stroke of the piston. 



\d) The number of revolutions, and diameter of the crank and shaft, which 

 must be made of wrought iron. 



(e) Tlie diameter and weight of the fly-wheel. 



(/) The diameter of the driving pulley (which must not be less than 

 6 inches wide, nor move at a less velocity than IGOO feet per minute). 

 A second pulley must also be fitted, and which must not be less than 

 5 inches wide, nor move at a less velocity than 900 feet per minute, 

 for driving chafli-cutting or other machines requiring a slower motion 

 than can be given by the large driving-pulley. 



{<j) The number of horse-power the engine is calculated to work at. 



4. The engine must be provided with a good water-gatige, and with a short 

 piece of pipe fitted with a cock, having a thread to fit the ^-inch gas pipe, for 

 the purjjose of fixing a pressure gauge. 



5. If the engine be worked on the expansive principle, it is desirable that the 

 means used for cutting off the steam be of a simple character. No ibrce-pump 

 must be fitted with more than two valves, and these must be easy of access. 

 If a heater for water be used, it must be so constructed that the engine will 

 work either with or without it. 



G. The Society will be empowered to select any of the engines exhibited, for 

 the purpose of driving other machinery under trial, and will pay the exhibitor 



