Two centuries of shipbuilding by the Scotts at Greenock (1906)
Scotts' Shipbuilding & Engineering Co. Ltd · London : offices of "Engineering" · leaf 202
specially powerful tool is provided for bendingchannel irons and beams, and for drilling horizontal holesin them. Hydraulic manhole-punching and flanging machinesare employed, each having a ram of 27 in. in diameter, andcapable of punching a hole 42 in. by 16 in. through aplate § in. thick. There… … i—i 02 i—i o Joggling Plates and Angles: Hydraulic Riveting. 99 special hydraulic tools are provided to carry out this work.The firm were also early in adopting the practice ofjoggling frames, deck beams, etc. The frames and beamsare joggled when cold, to suit each alternate inner strakeof plating,…
