Tube-coiling machine

Claim 1

A tube-coiling machine comprising a frame, first and second bending rolls mounted on said frame, a turning mechanism for said bending rolls, said turning mechanism being connected with said frame, bearing rolls mounted on said frame, a first drive shaft having free ends, said first drive shaft being mounted on said frame, a first gear rigidly secured on said first drive shaft, a first drive rack meshing with said first gear, a second gear rigidly mounted on one free end of said first drive shaft, a carrier provided with a toothed rim, said carrier being mounted on said first drive shaft between said first and second gears, a retainer cylinder secured on the second free end of said first drive shaft, said retainer maintaining said first drive shaft and first bending roll in coaxial relationship, a second drive shaft, having a free end, said second drive shaft being mounted on said frame, a gear rigidly mounted on said second drive shaft, a second drive rack meshing with the gear of said second drive shaft, a gear wheel secured on the free end of said second drive shaft and meshing with the toothed rim of said carrier, an axle eccentrically mounted on said carrier, said axle having a free end, a gear freely mounted on said axle and meshing with the second gear of said first drive shaft, a second bending roll secured on the free end of said axle, said freely mounted gear having a projection, a crank installed on said projection, a retainer provided for said crank connecting said crank with said freely mounted gear, and a slide provided with a journal located on said crank, said first bending roll being secured on said journal.