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+--- Thread: Roman Lewis pins (/showthread.php?tid=24273)
Roman Lewis pins - Nerva - 09-24-2014
Salvete Omnes!
Would any of you have pictures of roman lewis pins (dovetail lewis pins)?
Gratius,
Nerva.
Roman Lewis pins - Eleatic Guest - 09-27-2014
Never seen such a piece in a museum, but you'll find depictions in the odd book on Roman construction or technology (there is one on the very last page of Helmuth Schneider: Geschichte der antiken Technik, C.H. Beck).
Roman Lewis pins - Renatus - 09-28-2014
This three-legged lewis is said to be Roman:
http://en.wikipedia.org/wiki/File:Lewis_Lifter_ACOR_Jordan0869.jpg
A simpler form of three-legged lewis in which, instead of a shackle and pin, the outer legs are hooked to take a sling is, apparently, in the museum in Passau (illustrated in Peter Hill, The Construction of Hadrian's Wall, Stroud: Tempus Publishing Ltd, 2006, p.84, fig.49).
Roman Lewis pins - Eleatic Guest - 09-29-2014
Quote:This three-legged lewis is said to be Roman:
http://en.wikipedia.org/wiki/File:Lewis_Lifter_ACOR_Jordan0869.jpg
A simpler form of three-legged lewis in which, instead of a shackle and pin, the outer legs are hooked to take a sling is, apparently, in the museum in Passau (illustrated in Peter Hill, The Construction of Hadrian's Wall, Stroud: Tempus Publishing Ltd, 2006, p.84, fig.49).
You don't mean by chance such an arrangement? I wonder if this type of lewis which works with a hinge was already used in antiquity. Certainly in the MA when it was called "devil's claw" in German (Teufelskralle).
http://en.wikipedia.org/wiki/Lewis_%28lifting_appliance%29#mediaviewer/File:Louve_de_carrier.JPG
Roman Lewis pins - Renatus - 09-29-2014
Quote:You don't mean by chance such an arrangement?The Passau lewis works on the same principle as the three-legged lewis illustrated. The upper part of the outer legs is in the form of a hook over which a noose of rope could be looped. The inner spacer bar seems to be free but presumably, when the whole assemblage was put together, this did not matter.