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C Channel lifting clamp

5.7K views 9 replies 6 participants last post by  forhire  
#1 ·
I build a lot of flights of stairs. Some stringers have integral landings which are awkward and inconvenient to lift. This makes them difficult to fit to the reset of the assembly so I have come up with this clamp. By moving the shackle to the appropriate hole you can balance the the stringer so it sits level which makes it easy to align the stringer with the nosing of the stair tread. The clamp can accommodate 10 and 12 inch channel. Also when attached it does not interfere with the nosing of the tread or stair pan.



 
#3 ·
That’s pretty slick!:cool: Whenever we made something for lifting, we had to send it to the rigging shop to be load tested, and stamped to be able to use it on the job. Is it that way in Canada too?
 
#4 ·
Docwelder - yes there is a nut welded on the inside of the smaller tube.

CEP - technically yes ... typically the strings never exceed 400 lbs. The material is 1/2" thick with 6" of 1/4 weld on each of the two legs and about 12" of 1/4 weld on the top plate. I am the only one that uses it so it should never get used on a 10000 I beam.
 
#5 ·
At one time the company I worked for, the insurance company, I swear to God was worse than OSHA ever thought about being. They had inspectors who would show up on your job site, and write you up for every little thing!
I’ve been on a couple Army Corp of Engineer jobs. Their inspectors are a safety nightmare!
 
#6 ·
Its like that working for a GC here in CT. They get most of Yale's work. Yales insurance company is the main problem, its their rules. I would kill for OSHA standards on their jobs... its that bad. Were talking a dedicated fire-watch for every little thing to do with sparks/welding. Had journeyman ironworkers fire watching me grind with a 4" grinder.... because well you know all the iron and concrete can easily catch on fire.

The last job I did for them I connected, the safety kid saw me use the ball on the crane as a hammer and apparently thats not cool either. (as if it hasnt been done for 100 years). Had to shut the rig down get somebody out to inspect it and I was written up. Then they ask why we arent making 100+ pieces a day there. I wonder why......