344

Class 8.—NAVAL ARCHITECTURE, MILITARY ENGINEERING ,West End Gallery and South-West Gallery.

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or bottom, or both, to form a hollow chamber or tube,inclined from the centre to the bottom at each end.Across this well at the centre are two wooden wheels,one over the other, which are driven by the steam engine.Along the bottom of the canal or river a flexible ironband or rail is laid about two inches and a half wide byone-eighth of an inch thick. This band being raised upinto the well and laid between the two wheels, the upperwheel is screwed down and it becomes tightly compressedbetween them. As these wheels revolve, the band isdrawn rapidly through them from stem to stern, when itagain sinks to the bottom.

144 Mumford, William Thomas, 19 Edward Street,Deptford —Inventor.

A model of the paddle-box of a steam frigate of 600horse-power, with wheel and paddle-box boat, illustratinga plan for shipping and unshipping the boat. The ma-chinery consists of two straight davits, 8 feet 6 inches long,and two vertical stanchions, 11 feet 6 inches long, blocksand rigging, by the application of which the boat may behoisted on or off with facility.

Model of a gun-carriage for working a gun at a bow,broadside, or stem-port; it can be used, with ease whenthe ship’s bow or stern flares out at an angle of 25 degrees,and when wanted at a broadside port, the fore trucks canbe fixed, and the slides removed immediately.

145 Admiralty, Somerset House —Producer.

Series of Half-Models of Ships-of-War, fitted with Screw-

Propellers :—

1. St. Jean d’Acre , of 100 guns, building at Devonport.

2. Agamemnon , of 90 guns, building at Woolwich.

3. Imperieuse, of 50 guns, building at Deptford.

4 Arrogant, of 46 guns, at sea.

5. Tribune, of 30 guns, building at Sheerness.

6. Highflyer, of 20 guns, building at Blackwall.

7. Archer, of 12 guns, at sea.

8. Cruizer, of 16 guns, building at Deptford.

9. Reynard, of 10 guns, at sea.

146 Admiralty, Somerset House —Producer.

Series of Half-Models of Sailing Ships belonging to the

Royal Navy:—

1. The Queen, of 116 guns, flag-ship in the Mediter-ranean.

2. Albion, of 90 guns, employed in the Mediterranean.

3. Hannibal, of 90 guns, building at Deptford.

4. Cassar, of 90 guns, building at Pembroke.

5. Superb, of 80 guns, employed in the Mediterranean.

6. Cressy. of 80 guns, building at Chatham.

7. Cumberland, of 70 guns, flag-ship in the West Indies.

8. Emerald, 60-gun frigate, building at Deptford.

9. Narcissus, 50-gun frigate, building at Devonport.

10. Diamond, 28-gun frigate, in ordinary at Sheerness.

11. Arachne, 18-gun sloop , at Devonport.

12. Siren, 16-gun brig, at Sheerness.

13. Pilot, 12-gun brig, employed in the East Indies.

14. Britomart, 10-gun brig.

Series of Half-Models of Experimental Frigates of theRoyal Navy :—

I. The Arethusa, of 50 guns. 2. Indefatigable, of •'5°guns. 3. Leander, of 50 guns. 4. Phaeton, of 50guns—all of the Experimental Squadron.

5. Raleigh , of 50 guns, in ordinary at Portsmouth.

6. Nankin, of 50 guns, in ordinary at Chatham.

7. San Fiorenzo, of 50 guns, building at Woolwich.

8. Thetis , of 38 guns, employed on south-east coast otAmerica .

9. Inconstant, of 36 guns, in ordinary at Devonport.

10. Eurydice , of 26 guns, in ordinary at Portsmouth.

11. Spartan, of 26 guns, in ordinary at Devonport.

Series of Half-Models of Experimental Brigs in the RoyalNavy:—

1. Flying-fish, 12 guns, West Coast of Africa .

2. Espiegle, 12 guns, in ordinary at Sheemess.

3. Daring, 12 guns, in ordinary at Chatham.

4. Osprey, 12 guns, wrecked at New Zealand .

5. Mutine, 12 guns, wrecked in the Mediterranean.

6. Waterwitch, 10 guns, in ordinary at Chatham.

7. Pantaloon, 10 guns, Cape of Good Hope Station.

Whole Models of Ships belonging to the Royal Navy :■

1. Queen, of 116 guns, flag-ship in the Mediterranean-

2. Royal Albert, 120 guns, building at Woolwich.

3. Vanguard, 80 guns, in ordinary at Devonport,

4. Cumberland, 70 guns, flag-ship in the West Indies.

5. Vernon, 50-gun frigate, in ordinary at Chatham.

6. Pique, 40-gun frigate, in ordinary at Portsmouth.

7. Siren, 16-gun brig, in ordinary at Sheerness .

Models of Bows, Sterns , and Transverse Sections of H erMajesty’s Ships:—

Bow, stem, and transverse sections of H.M.S. Q 11 ^’These sections exhibit the most important features in tnconstruction of the ship—the arrangement of her decland the mould of the bow and stern.

Bow and stern of H.M.S. Albion. .

Bow, stern, and transverse section of H.M.S. Vang« aand H.M.S. Pique.

Stern of a 50-gun and a 60-gun frigate.

Series of models of ships’ boats.

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Bow, Stern , and Transverse Sections of H.M.S. “Queen.”

147 Campbell, Alexander F., Great Elmnstead, Norwich—Inventor and Patentee.

Patent ship propeller in the model of a vessel withsteam machinery, two blades revolving.

Model of a screw steamer.

148 Twyman, H., Ramsgate —Manufacturer.

Model of a lugger used on the coast for renderingassistance to vessels in distress.

149 Mare, C. J., & Co., Orchard Yard, RlachmU-—Designers and Manufacturers.

Model of Her Majesty’s iron screw steani-y aC“ Fairy.”

Model of iron steam-vessels, built for the Emp eI otRussia , the Viceroy of Egypt, See.

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