COMBINED DIVING BELL & DECOMPRESSION CHAMBER Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 26. Another view showing a 45-ton concrete block being lowered into position. After the Sea bed has been levelled and prepared by Diving Bell men, the concrete blocks are set in place by Helmet divers. One of the Helmet divers’ boats can be seen in the foreground. Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 25. Photo No. 25. General View of one Section of the Works, showing two of the Diving Bells. Each Bell measures 17 ft. by 10 ft. by 6 ft. 6 in. high and weighs about 35 tons Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 24. Back view, showing Oxygen Cylinders, Purifying Chamber, etc Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 23. Side view, showing valves Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 22. Photo taken in a Diving Bell when 65 feet below the surface Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 18. DOUBLE DIVER TELEPHONE (GRAHAM & DAVIS' PATENT). See page 32 Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 17. SINGLE DIVER TELEPHONE Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
HELMET AND CORSLET DISCONNECTED TO SHOW DETAILS Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
HELMET AND CORSLET DISCONNECTED TO SHOW DETAILS Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 13. (d) For regulating by hand Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911
Photo No. 13. (c) For regulating by pressing the head against it, inside the helmet Submarine Appliances And Their Uses : Deep Sea Diving, &c., &c. - 1911