OK, down to business.
As mentioned previously, I had a need for a lifting device in my shop that could handle at least 1 ton weight and be unobtrusive due to limited space.
My shop has two single front rolling doors with a brick pillar in the center between the two openings, set on top of that pillar is a very heavy Universal beam that was used to support the roof at one time, but roof structure was changed to trusses and the beam became surplus to requirements, but was best left where it was.
Eventually, I levelled the beam up as it was originally sloped with the roof.
After levelling, I decided to build a kind of shelf mezzanine floor about 6 feet deep over the door openings on the inside and utilised the old beam for some central support.
Just recently, I decided I wanted to utilise that beam to help solve my lift problem.
So I decided that if I replicated that front to rear beam with a similar parallel one up against the shop side wall, I could create a pair of tracks suitable for running "I" beam gantry trolleys on top of, rather than under slung like when using a chain block.
So I got hold of a 4 of those chain block girder trolleys and modified them as per the pic's and set them up to run on top of the "I" beams.
This is what I came up with...
More to follow.