GB537582A - Improvements in or relating to means for driving spindles of twisting, doubling and like apparatus - Google Patents

Abstract

537,582. Spindle-driving arrangements for spinning &c. machines. INDUSTRIAL RAYON CORPORATION. Nov. 8, 1939, No. 29673. Convention date, Nov. 18, 1938. [Class 120 (ii)] The spindles of twisting, doubling and like apparatus are driven by a belt or other endless flexible member which passes around spindles on opposite sides of an intermediate driving member, oppositely travelling runs of the belt enclosing the driving member and each of such runs contacting with the driving member once only and at least one tensioning pulley contacting each of the oppositely travelling runs of the belt &c. As shown a pair of whorls 13 driving the bobbin on spindles 11 at opposite sides of the machine are driven by an endless belt, the opposite runs 25, 35 of. which pass over and contact with opposite sides of the driving drum 22 disposed between the sides of the machine. The run 25 contacts with the upper side of the drum and is tensioned by pulleys 26, 27, the pulley 26 being carried by an arm 28 pivoted to the cross frame 15 connecting the bobbin traverse rails 5 and the pulley 27 being carried by a pivoted arm 32 on a fixed rod 33 ; the run 35 is formed into a loop by a pulley 36 so that the run contacts with the lower side of the drum and is tensioned by a pulley 37 carried by a pivoted arm 38 carried from the frame 15, the pulley 36 being carried by an arm 41 pivoted to a fixed bracket 42 of the machine and being moved to tension the run 35 by a weighted cord 44 connected to the pulley and passing over a sheave 45 mounted on the bracket 42. The rotation of the spindles is reversed by lifting the belt from the whorls and turning it over bodily so that the runs are interchanged, the pulleys 26, 27, 36, 37 being moved lengthwise of the drum to contact with the runs opposite to those with which they originally contacted. Specification 474,973 is referred to.