Automatic brake for rotary apparatus having a large inertia

摘要

869,859. Spin-driers. ROUSSELET, J. A. N. April 11, 1958 [May 29, 1957], No. 11489/58. Class 34(2) [Also in Group XXXIV] An automatic brake for rotary apparatus having a large inertia, includes a driving member 7 having a flange 13 adjacent a non-rotary braking surface 14, and ratchet teeth 9 on the hub 6 of member 7 co-operating with ratchet teeth 5 on the flange of a socket 4 secured to a driven member 2 whereby when drive to the driving member ceases and the driven member 2 tends to run freely due to inertia, the ratchet teeth 9 ride up on teeth 5 to move flange 13 against the braking surface 14. The member or pulley 7 driven by a belt 8 normally drives through teeth 5, 9 the member or basket of a drying machine, and on stopping of the drive to belt 8 the overrunnning of the basket 2 causes the relative sliding of teeth 5, 9 aided by a torsion spring 10. The braking surface 14 is formed of two friction pads on a disc 15, 17 slidably keyed to a fixed member 19 and biased by springs 24 on studs 22 toward flange 13. Nuts and bolts 25, 26 adjust the clearance between surface 14 and flange 13.