A Treadle Motion.

Manawatu Standard, Volume X, Issue 76, 28 August 1885, Page 2

A Treadle Motion.

A very ingenious treadle motion for' lathes, small circulars, and jig sawis an<j other purposes requirmjf foot p^)wer Tias heon used m the Unfted^ttttes. A collar upon theshaft is corinfcted ' to it bj^a cliitchl which is the equivalentof^a pawl 'and ratchet, m permitting motion m one direction and slips '^vhen i turned in»r«. yerae direction.: T^ atrapsV-abpufe half •an inch. in, TOdth^. are' t wound -upbiithigi^. c>f collar: in [Contrary a^rections, onftleidiuj^:/ ; to thetreadle/and the ofchei^sft«pife?Sfetened toa long s^Tß^^nn^;- W^&miSte^ is- pressed. dowa= it "unwinds one - ] strap; turning the collar m the direction which engages the clutch, and carries the shaft ronnd with it. The same motion also winds up the other strap -and pulls thespring in tension. When the treadle is relieved from pressure, the springs unwinds the straps connected ,to.it r and wraris up the other strap and also raises the treadlet turning the collar m the' direction which permits lit to slip freely , upon the shaft. The advantage of sudh - an arrangement permits highervelocitiei t -■ than is possible with a treadle connected ', to a crank, their is no deadvpomtj' and' ? * the treadle is always ready for us. Simi- ?'.' ' lar devices. are used for sewing machine t treadles and .bicycles! — Eiigineerijiia. ' '