Well fire lit, and just in from a bit more autojumbling, so here's the answers, as I'm sure you've all been having sleepless nights all week

But first, here's a message for Mark, "cheaters never win!" I'd already told you the answers, and then you come on here and post your answers

Pic 1 is indeed a chain linkage for a tilting sidecar, that ensures the sidecar tilts to the same extent as the bike, in this case a PanEuropean.
Pic 2 is a moggy body fitted to a Suzuki SJ jeep chassis, engine, and running gear. Used by the Conway Club on the Dragon site.
Pic 4 is a hand operated centre stand. A socket has been welded onto the centre stand nut and a ratchet connected to a long lever, though I'm sure the ratchet is fixed rather than acting as a ratchet. The bike is an old beamer, not sure the model.
Pic 3 is a 250 New Imperial, a Model 30 I think.
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