332 Report on the Exhibition of Implements. 



maker the speed he has calculated the machine to he driven at, 

 and the power he has estimated the horses to give, and that care be 

 taken that no greater speed be allov«'ed under trial. 



That no horse-machine be allowed to ccmpete that is calculated to 

 travel more than 2j miles per hour, or 220 feet per minute, at a 

 pov/er not exceediug 168 lbs. 



In machinerv driven by steam, the exhibitor to give the Judges the 

 pressure of the steam in lbs. per circular inch, the size of the safety- 

 valve, the length of the lever, the proportions of the lever, and the 

 weight upon the lever, the number of strokes the engine is to 

 make, and the number of feet it travels per minute ; and that on no 

 account shall a higher pressure be used during the trial. The Judges 

 to adjust the safety-valve before trial, and allow no greater speed to 

 be used than the speed it is calculated for. 



That no engine be allowed to compete with steam above 50 lbs. per 

 square inch, or 40 lbs. per circular inch. 



The Stewards, in the endeavour to follow out this plan as nearly 

 as possible, called the Judges together previously to the inspec- 

 tion of the implements, and read to them the following instruc- 

 tions, upon which they begged them as far as possible to report : — 



Hand Machines— I, The number of turns of the handle calculated 

 that it ought to make. 



2. The power in lbs. weight required to be applied. 



Instructions. — In trying the quantity of work done, no greate 

 speed be given than that specified. 

 Horse-power. — 1. The speed at which it is calculated to be driven. 

 2. The power that the horse has been estimated to give. 



Instructions. --^0 greater speed to be allowed on trial than that 

 specified. 



Steam Engines.— \. The quantity of fuel necessarv to get up the 

 steam. 



2. The quantity necessary per hour to keep it at work. 



3. The number of horse-power. 



4. The pressure of the steam in lbs. per square inch. 



5. The size of the safety-valve. 



6. The length of the lever, the proportions of the lever, and the weight 

 upon the lever. 



1. The number of strokes the piston is to make, and the number effect 

 it travels in a minute. 



How far the Judges were enabled to carry out this plan will 

 be perceived in their subsequent report. 



The following were the prizes offered by the Society : — 



