Normally the gap between the underside of the travelling lighthead and the worktable surface is fixed.

the lead guitarist in band

During the intermission an engaging nursery infant, bescrubbed and becurled, clad in rompers and wearing a wondering expression, had been steered gently about among the audience, holding out a porringer, into which contributions were liberally poured.

What pity is it / That we can die but once to serve our country!