| 摘要 |
356,194. Metal boats. BIRMING- HAM ALUMINIUM CASTING (1903) CO., Ltd. and PRITCHARD, P., Dartmouth Road, Smethwick, Staffordshire. May 31, 1930, No. 16868. [Class 113 (ii).] In metal boats the bottom comprises one or more light metal castings which at the sides are rebated as at c to provide recesses for the reception of sheet-metal sides d. The castings may be in halves to provide an upstanding internal keel b. Stringers e at the gunwale serve as supports for deck beams. The ribs, which may be constructed as described in Specification 356,900, are provided with a central recess which locks on the keel and with a recess for a longitudinal at the turn of the keel. Specification 338,339, [Class 113 (ii), Ships &c., Kinds &c. of], also is referred to. |
