2242 Starting with the name, a play on words, Chain, changer... I'd
guess this is a tool to help change a chain... To take the tension off
of a removable link in a chain so the removable link can be undone.
Rob H. wrote the following:
2244 Looks like a slide hammer of sorts. Put the point on a spot where
you wants to punch a hole. Holding the wooden top vertically, slide the
big metal ring up and let it drop to drive the point into the material.
2239 - Ye olde ships lantern. Hung in the hold/below decks. Designed so
the pitch and yaw didn't tip over the candle/lantern inside. Outer cage
to keep heat away from other items.
2240 - Well locally that would be a small sized paper bag from the old
Red/White food store chain, Also used as a decorative version of the old
brown bag for your lunch...
2241 - Roof anchor to tie off on while working on a pitched roof. Wish
MANY more of them were installed. Would make vent operations MUCH easier
in the fire service...
2242 - Fence stretcher?
2243 - Looks somewhat like an old book binders clamp. Mounted so that
you could clamp the stack of pages and sew the binding.
Not to question the experts, but ....
Why would a lamp holder that was hung as a pendulum
need gimbals? The gimbals would always keep the lamps
orientation relative to the protective cage the same, so they
are redundant. The old timers were smarter than that..
Could the gimbal device (#1) have been used for a shop's clock?
An accurate clock was essential for calculating longitude. By fixing
it to the ship, tilting action would cause the mechanism to vary the
time, thus producing errors in navigation. The gimbal would allow the
clock to remain in a set horizontal position, and allow it to remain
It could be really, really bad on a wooden ship to have the oil slosh out of
the lamp past the burning wick. As long as the force on the lamp is alway
perpendicular to the base, the oil will not slosh to the side. As you said,
this would USUALLY be the case if you just hung the lamp on a rope (the rope
exerts the force perpendicular to lamp base even when the lamp is swinging
in a regular fashion). However if the ship suddenly lurches laterally, or if
the lamp knocks into an object, then there is momentarily a component of
force that is not perpendicular to the base and the oil could slosh around.
The gimbal is not completely immune to these effects either, but it provides
an extra degree of protection
Actually this is a very interesting and complicated physics problem where
you can treat the gimbal lamp on a rope as a triple pendulum consisting of
the rope, a rigid body (the cage), and the lamp on the gimbal. The motion
and forces at the end due to acceleration at the top can be very chaotic.
This video illustrates this:
here is a 1hr 20min MIT lecture if you want to understand it.
Posting from Rec.crafts.metalworking as always.
2239) Looks like a container for an illuminating fire which
is suspended from a chain. Perhaps oil-soaked reeds in the cup
in the center?
The ball chain hanging from it in the first shot does not
2240) Well ... aside from being a paper bag folded flat for storage ...
I suspect that it is a "burn bag" -- used in a place which
handles classified materials when something is still classified,
but needs to be disposed of. Things are collected in the burn
bag in the security file cabinet until the right time, and it is
then sent to the proper facility for secure destruction.
I have also seen bags printed for "Blast Mix" (Ammonium Nitrate
fertilizer and fuel oil which make an explosive, as Tim McVeigh
knew all too well.
2241) This looks like a fold-up safety warning -- the kind which might
be put on a floor which has just been mopped and waxed, to warn
that it is a slipping hazard for a while.
2242) This looks as though it is intended to tighten a chain binding
a load in place. At a guess, a link at one end of the chain
slips over the oval metal extension and is trapped there with the
wing nut on the threaded stud. The chain extends along the
handle, around whatever is being bound, and the other end
connects to the hook after which the ratchet is used to tighten
the chain around the bound load.
2243) Now this is a weird one. It looks:
1) As though one of the two cranks has been broken.
2) That it bolts down to a surface (perhaps a ship deck.)
3) That the cranks and screws below them are used to
extend downward and clamp something to the deck.
Perhaps a pair of lifeboats, perhaps a gangplank, or
4) Whatever it was used for -- it was not intended to be on an
oriental rug as itis in the photo. :-)
2244) I don't know how much of the taper is a result of the angle of
the photo and the use of a wide angle lens, but if the taper
is not as extreme as it appears, I would suggest that this is the
sort of thing carried around a park or other grounds to spear
and pick up paper trash -- spent tickets, candy wrappers, and
such. The length is about right for the task. The point is
perhaps a bit too elaborate -- but perhaps someone got tied of
his falling apart and decided to fix it for once and for all.
Now to see what others have suggested.
P.S. Can you set things up so the guesses at the bottom of the
page don't show up until the official answers have been
released? I'd really not have them there until I have my
answers posted. :-) (I'll actually read them before I got though
those in the newsgroup -- but after I post this.