496 SEC. 12. APPLIED MECHANICS. 



2153e. Model of a Surf-boat, for service on West Coast 

 of Africa. Built by Forrest and Son for the War Department, 

 1872-3. Scale 1 inch to 1 foot ; length 25 ft., breadth 5 ft., 

 depth 2 ft. 3 in. Forrest and Son, Limehouse. 



South Kensington Museum. 



2153f. Model of Pleasure Boat. Built for Lord Castlerosse 



in 1861 for the use of Her Majesty during her visit to the Lakes 

 of Killarney. Searle and Sons, Lambeth. 



South Kensington Museum. 



2153g. Model of the Lifeboat and its Transporting 

 Carriage, on about a -^ scale ; adopted by the Royal .National 

 Lifeboat Institution. Length 33 ft., breadth 8 ft., depth inside 



3 ft. 4 in. South Kensington Museum. 



2178fm. Whole Model of the Australian lifeboat "Lady 

 Daly." Built at Adelaide, from designs by Mr. W. Taylor, 

 Government shipwright at that port, 1867. Length 43 ft. 1 in., 

 breadth 9 ft,, depth midships 4 ft. 1 in. ; scale, f inch to 1 ft. 

 The model was presented to His Royal Highness the Duke of 

 Edinburgh, by the Marine Board of South Australia in 1868. 

 H.R.H. The Duke of Edinburgh. South Kensington Museum. 



2178fl. Whole Model, rigged, of a Thames Sailing Barge. 



Built 1855. Length 70 ft., breadth 16 ft., depth 6 ft. Searle 

 and Sons, Lambeth. South Kensington Museum. 



2162. Drawing, coloured, of a Patent Multi-flue High- 

 pressure Marine Boiler; by Messrs. R. &W. Hawthorn, 1868. 

 Scale, ^ inch to 1 foot. R. & W. Hawthorn, Engineers, Ts r ew- 

 castle-on-Tyne. South Kensington Museum. 



The drawing shows a front view and cross section of the boiler, longi- 

 tudinal and cross sections, and a sectional plan. 



2163. Model of a set of Patent High-pressure Marine 



Tubular Boilers ; designed for the continuous use of fresh 

 water. William Gray, Dawlish. South Kensington Museum. 



These boilers possess the following arrangements: They are fired from 

 each end, the furnaces having special air-flues designed to assist in the com- 

 bustion and the consumption of smoke. They are multi-tubular boilers, 

 having steam superheaters, and over all large tanks to contain fresh water, 

 which supply the boilers with heated feed water. The working pressure is 

 100 Ib. per square inch. 



2164. Drawing. Sections of Gray's Patent High- 

 pressure Marine Steam Boilers, showing arrangement of 

 the tubes, steam superheater, water heater, and flues. Scale, 



4 inch to 1 foot, W. Gray, Dawlish. 



South Kensington Museum. 



