There is a page in the CAA manual that is used in the JAR performance exam that I suspect BMM is referring to. I believe derives from the B737. It is headed 'Quick turnaround limit' and is composed of tables of weights for flap 15º, flap 30º and flap 40º at different pressure altitude/temperature combinations. The text header says 'After landing at weights exceeding those shown below adjusted for slope & wind wait at least 53 minutes and then check that wheel thermal plugs have not melted before excecuting a take-off.' There is a second detailed page allowing brake cooling times to be calculated parked, airborne gear down and airborne gear up. The second page allows taxy time to be taken into account, the first doesn't mention it.
I'm not B737 qualified so I can only guess how these tables should be used. Any 737 operators feel free to jump in.
Should the 53 minutes be on the ramp? I would guess yes, because brake temperatures generally rise while taxying. What if the a/c was near the limit on the first page? I would use the second, detailed, page to establish the cooling time.
Do these pages ever get used for real on the B737?