Model of the Construction of the Screw Aperture for a Twin Screw Steamer, Model of part of the stern of a wooden ship ( starboard side), on a groundboard. The model shows the keel, the trusses with sentenced and a part of the weighing and the propeller shaft. The trusses just before and just behind the propeller shaft gasket have different shapes to allow the shaft to run through. The gasket is in a thick wooden block, reinforced on the outside with a toothed metal plate and on the inside with a crossbeam beam and metal knee., anonymous, Netherlands, 1864, wood (plant material), brass (alloy),

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Size: 7146px × 5359px
Location:
Photo credit: © Gibon Art / Alamy / Afripics
License: Royalty Free
Model Released: No

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