Novelist desperately needs historical carriage info-how did a "skid" work?
Can anyone point me to a photo or diagram of a "skid" or "skid-plate" or "slipper," which was used before brakes to lock the wheel(s) of a carriage or stagecoach when going downhill?
I am finding a lot of references to this in pre-1830 or so coaching and staging references, but I can't find any image of it.
Also, the wheel could apparently just be "chained" or both "chain and skid" put on, rather quickly apparently, even from the rear perch by the guard on a stage or mail-coach.
I'd really really appreciate any detail about this process, how it could go wrong, and what the equipment looked like.
Thanks in advance!