From the link I posted before and with reference to the lines in the song:

T'enemy then retired t' wilds a Shipley Glen,switch back t'were invaded be a undred thousand men,
They ung their wounded out t' dry across the aeril flight,
An stuffed their guts wi monkey nuts an challenged us feight.

"In 1887 a wooden switchback railway, probably only the second to be built in the UK and originally erected for the 1887 Saltaire Exhibition, was re-erected on the Glen and renamed 'The Royal Yorkshire Switchback' (closed 1917).

There was a giant camera obscura. In 1889, 'The Aerial Flight' (not to be confused with the 'Aerial Glide'), a cable car ride operating between two huge wooden towers was built (demolished 1920) and, in 1897, 'the Toboggan Slide' opened on the Glen but closed after an accident on Whit Monday 1900."

Thanks

Gary