What is it? Weekend Edition 11

Correct

Someone had sent this to me quite a while ago, I've shown it to a few people but no one knew what it was, I think this is first guess that I've heard for it. I'll pass it along to the owner. Thanks

It doesn't look strong enough to grab a pipe from the inside securely.

My guess is that it is used to clean the inside of a pipe, perhaos by breaking the rust loose. Are the tops of the bolts that stick out worn?

Joe Gwinn

I don't know if they are worn or not, this was sent to me a year or two ago, too long ago to find the email and ask the owner about it. Maybe if he reads the newsgroups he will answer your question.

Rob

I wonder if the bolts kept brake linings from slipping. Could it be the shoe assembly of a self-actuating brake to keep the wheel of a hand cart from rolling backward?

With a two-wheeled cart, a man might move a ton on a firm, level surface, but not up a steep slope such as a gangway or creek bank. If each wheel had an automatic brake, swinging the handles from side to side would push the load up the slope with a mechanical advantage of (the distance from the handle to the braking hub) divided by (half the wheelbase).