Pipe 35 has one side of the pipe in slot 8a with the end of thumb screw clamping the conduit to {HEAD ~ the side} of {TAIL ~ slot 8a} 
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Pipe 35 has one side of the pipe in slot 8a with the end of thumb screw clamping the conduit to { HEAD ~ the side } of { TAIL ~ slot 8a }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL