Photo No. 49. A SUBMARINE ROCK BLAST
Submarine Appliances And Their Uses - 1911
Klipper
Illustrationer
Methods of Connecting Electric Detonator Fuses in Series and in Parallel, For Submarine Blasting of Wrecks, Rock, &c
Submarine Appliances And Their Uses - 1911
Photo No. 55. Rock Cutters, showing Points removed from the Bars; Photo No. 56. Barge fitted with Rock Cutting Plant complete
Submarine Appliances And Their Uses - 1911
ROCK GRAPNELS (Photos F and G); MURPHY PATENT GRAPNELS (Photo H); RENNIE'S PATENT GRAPNEL (Photo I); MUD GRAPNELS (Photo J)
Submarine Appliances And Their Uses - 1911
Photo No, 57. H.M. Battleship “Howe” on the Rocks, near Ferrol, Spain
Submarine Appliances And Their Uses - 1911
Fig. 2. Skantet kammer, bygget af antike kvadersten
Om Antike Trykledninger Til Vandforsy... - 1903
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