.. are you serious? A hay baler is used to to collect, compress and tie cut hay into bales.
1850s
Patent 113,792 Previze A. Perry was the first to be given a patent for a hay baler' in 1871.
hay is picked up by a the pickup tines, then pushed perpendicularly by a "fork". it is then compacted into slabs by the plunger and tied with twine by the knotters. the bale then comes out the back...