Question regarding the construction of a manhole on a CSTR reactor

SF 2014-10-12

Hello,

I am currently designing a reactor as a project for my University. RIght now I am trying to constuct the manhole that goes on the top.

The manhole looks very similar to this one that I found online:

The trouble I have is with the 2 handles of the manhole. I do not know how to create the curved part of the handle.

Can anyone give me any tips ?

Thanks in advance !!!

Rohit