belt shifter (belt shifter)

A contrivance for shifting a machine-belt from one pulley to another, in order to stop or set in motion certain parts of the machine, or to change the motion. E. H. Knight. belt-shipper (belt's hip"ėr), n. A belt-shifter. belt-speeder (belt's peder), n. A contrivance a machine for trans mitt i transmitting varying rates of motion by means of a belt. in spinning-machines to vary the rate of rotation of the spool as the cop increases in size. It is much used