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after-frame
after-frame n. 
/ˈaftəfreɪm/,
Brit. /ˈɑːftəfreɪm/
, /ˈɑːftəfreɪm//ˈaftəfreɪm/U.S. /ˈæftərˌfreɪm/
†(a) superstructure (in figurative context in quot. 1653) (obsolete. rare); (b) Shipbuilding any of the frames (frame n. 5f) in the rear half of a ship./ˈæftərˌfreɪm/ΘΚΠ
society > travel > travel by water > vessel, ship, or boat > parts of vessels > body of vessel > [noun] > timbers of hull > frame
frame bend1711
after-frame1754
frame1754
balance-frame1850
web frame1864
1653 G. Ashwell Fides Apostolica 41 That foundation, whereon the whole after-frame is built.
1754 M. Murray tr. H. L. Duhamel du Monceau Elements Naval Archit. iv. 29 in Treat. Ship-building Having thus formed the midship and after frames, we shall in the next place shew how to space the ribband lines.
1855 J. Ross Rear Admiral Sir John Franklin 14 Each of the discovery ships was fitted with screw propellers, the effect of which, besides materially weakening the stern-post and after-frame of the ship, had the disadvantage of taking up a great deal of room.
1933 Pop. Sci. Monthly May 86/2 The after chines are clamped in place and the after frames squared.
2007 P. Matthews Mahogany in Scale iii. 21/2 (caption) A ‘butterfly keel’ is glued in place on the after frames.
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