Help Advice Construction Swivel Arm Jib Crane Hoist

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Help Advice Construction Swivel Arm Jib Crane Hoist:
hi, I should make a swivel arm for a small jib crane to be installed in my small lab. size description
ten feet height under hook, ten feet arm length jib crane

one thousand four hundred pounds, to be juxtaposed and bolted to reinforced concrete pillar in my laboratory. I would like to build it all in iron beams, what do you recommend? How to build hinge for arm rotation? thanks to those who want to help me and provide advice and useful tips