Search Results for: Photon beam machine tool
enabling it to sink into a pit in the gate-passage, and when horizontal the bridge would often be supported by stout pegs inserted through the side walls. this was a clumsy arrangement, and many turning bridges were replaced with more advanced drawbridges. [ ] see also[ edit ] bascule bridge double-beam
"the moat was crossed by means of a wooden drawbridge, hinged at its inner edge." ^ bottomley, frank, the castle explorer's guide, kaye & ward, london, isbn - - - pp – ^ château du plessis-bourré: video of working drawbridge archived - - at the wayback machine ^ bottomley, frank, the castle explorer's...
https://en.wikipedia.org/wiki/Drawbridge