Which preposition to use with linotypes

in Occurrences 2%

He strolled into the dusty, disordered office and eased the worry from Sam Pickering's furrowed brow by attacking the linotype in spirited fashion.

for Occurrences 1%

He delighted Sam Pickering by continuing steadily at the linotype for five consecutive weeks, while business piled up at the First-Class Garage and old Porter Howgill was asked vainly to do everything.

Which preposition to use with  linotypes