Gullick Jacks
Gullick Jacks
(OP)
This is the name of something very similar to an expansion bolt - - they are 4 inches long and inserted into a 30 mm diameter hole drilled into sandstone. Tightening the nut expands the item upwards creating a vertical force. A number of them can be used in a circumferential ring to lift a circular column (as in a church).
Does anyone know where they can be obtained (or any similar product )
Any comments greatfully appreciated. DW
Does anyone know where they can be obtained (or any similar product )
Any comments greatfully appreciated. DW





RE: Gullick Jacks
http://www.us.hilti.com/
When I checked it was down for maintenance though. If you go to the Thomas register web site you can find local distributors for them:
http:
RE: Gullick Jacks
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Gullick Jacks
It appears that Gullick Dobson, an old supplier of mining machinery, has morphed into Joy Mining Machinery.
It's not clear if they sell individual elements of their roof bolting systems. It's also not clear that's what you want.
What are you trying to do?
Mike Halloran
Pembroke Pines, FL, USA
RE: Gullick Jacks
However I now have discovered the proposed use and intend to distance myself from the project ! ! !
A Church roof has six large sandstone support columns which are seen to have cracks on one side only. A Consultant suggests this is caused by settlement of the foundation plinths, which reduces the load on one side but overloads it in the other . This overload is causing the cracks.The Consultant suggests that Gullick Jacks be drilled and fitted into the uncracked side and by tightening them up it will cause this side to take a proportion of the load and solve the problem ! The Consultant does however invite the Contractor to offer alternative proposals provided there is adequate insurance cover in place for the work !
I'll keep you posted on the outcome.
RE: Gullick Jacks
RE: Gullick Jacks
RE: Gullick Jacks
I would give these people a look see and maybe a call.
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http://www.uretekworldwide.com/index2.html
A different approcach.
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