On Sun, 01 May 2016 01:27:44 -0400, wrote:

On Sat, 30 Apr 2016 16:44:38 -0700 (PDT), whit3rd
wrote:

On Thursday, April 28, 2016 at 3:59:32 AM UTC-7, Ignoramus31353 wrote:
I sold a customer this hoist, and, unfortunately, upon delivery the
sight glass was broken.

He says that it is a round glass with a little groove for a o-ring.

He's probably wrong. Why would anyone bother to grind a groove in glass?
Cut or grind a glass disk (or find a crafts-store and look at the little round
mirror selection), use a bit of cork gasket, and you're good to go.

No need to reply to the Whittard, clare.


There are several designs - inclusing one that takes an "O" ring
around the circumference of the glass, in a groove, and one that sits
against an "O" ring and is held in by another "O" ring between the
glass and a clamping plate. There are also glasses that are held un by
a threaded ring

I prefer the threaded style because it offers a way to apply a
measured stress on the glass. It's much safer than trying to press
the glass against the o-ring and then force a circlip down around the
delicate edges. The latter only works well in a factory with a proper
press and backing plates. Ig's hoist had an external groove, which
would have made it easier for a circlip, but still hard on the glass.
I'll bet his client broke it trying to remove it to clean the paint
overspray, no doubt by an earlier owner.

--
EAT RIGHT, KEEP FIT, DIE ANYWAY.
--anon

Aw, Hell. Gimme CHOCOLATE!
--LJ