424 SEC. 12. APPLIED MECHANICS. 



Stroke. 3 feet 6 inches. 



The steamships belong to Messrs. Donald Currie and Co.'s Colonial Line 

 of Mail Steamers, and run direct between London and the Cape of Good 

 Hope. 



2159. Model, on a scale of 1^ inch to 1 foot, of the oscillating 

 cylinder paddle-wheel condensing engines of the Holyhead and 

 Kingstown Royal Irish Mail Steamer " Leinster." 750 horse- 

 power, nominal. Diameter of cylinders, 98 inches ; stroke, 6 feet 

 6 inches. South Kensington Museum. 



To the engines are attached, on the same scale, the feathering float paddle- 

 wheels of the ship, which are 32 feet in diameter. The floats are 12 feet 

 long by 4 feet 10 inches deep. Ravenhill, Eastou, & Co., Engineers, 

 Ratcliff, London. 



Note. The length of the " Leinster " is 350 feet over all. Beam, 35 feet ; 

 depth of hold, 21 feet. Tons, 2,000. The ship has 8 boilers, 4 fore and 4 aft 

 the engines, having 40 furnaces fired in line with the keel. The draught of 

 the ship is 8 feet 6 inches on an even keel, and her speed about 21 statute 

 miles per hour. She was built by Messrs. Samuda Brothers, Poplar, in 1860. 



2159a. A Model of Direct-acting Screw Engines, date 

 1850, made for the Danish Government by Maudslay, Sons, and 

 Field. Maudslay, Sons, and Field, Engineers, Lambeth. 



2159b. A Model of Direct-acting Screw Engines, as 



fitted in 1851 by Mandslay, Sons, and Field in the mail steamers 

 from London to Calcutta, and from London to the Cape of Good 

 Hope. Maudslay, Sons, and Field, Engineers, Lambeth. 



2159c. A Model of Horizontal, Double Piston Bod, 

 Direct-acting Screw Engines, as fitted in H.M.S. "Agin- 

 court," 1,350 horse-power nominal, and in H.M. ships " Prince 

 Consort," ''Caledonia" and "Ocean," each 1,000 horse-power 

 nominal. Maudslay, Sons, and Field, Engineers, Lambeth. 



2159d. Model of Beam Engines, similar to those of the 

 ' Great Western" steamship. This model was made by the late 

 Henry Maudslay. 



Maudslay, Sons, and Field, Engineers, Lambeth. 



2159e. Model of Feathering Screw, by the late Joseph 

 Maudsley. Date 1848. 



Maudslay, Sons, and Field, Engineers, Lambeth. 



2159f. Model of Paddle Wheel of "Great Western" 



steamship, designed by the late Joshua Field, F.R.S. 



Maudslay, Sons, and Field, Engineers, Lambeth. 



2159g. Drawing showing the four cylinder compound engines 

 designed and fitted by Maudslay, Sons, and Field in the steamers 

 of the " White Star " line, and in those of the " Compagnie Gene- 

 rale Trans atlantique." 



Maudslay, Sons, and Field, Engineers, Lambeth. 



