09-01-1913 дата публикации
Номер: GB191204461A
4461. Bateman, R. W., and Bateman, L. H. Feb. 22. Planing. - For reversing planing and like machines, frictional reversing - means are first put into operation, positive driving-means being automatically brought into operation after reversal. The machine table a, Fig. 1, carries tappets b, c which operate rollers on pins f, g on a cam-plate e and communicate motion to a shaft r; a third one-way tappet d operates an arm j and gives the shaft r a further movement to give a positive drive on the cutting- stroke only. The shaft r communicates motion to a shaft w, Fig. 4, connected at each end to a sleeve x on the boss y of the fly-wheel z; the inward movement of the sleeve x operates, through toothed wheels and levers, a spindle 16 carrying a pinion 17 which tightens the strap on the driving-pulley 21, the strap on the corresponding pulley at the other end of the shaft w being simultaneously released. Further movement of the sleeve x causes a pin upon the fly-wheel z to come into positive engagement with the pulley 21. The strap clutches are of the type described in Specifications 24/10, [Class 80 (ii), Gearing. Variable-speed &c.], and 26,476/10. In a modified construction for use on large machines, the shaft r operates rods 38, Fig. 11, carrying racks which operate through bevel wheels 43, 44 a sleeve 45 which gears with the flywheel-shaft through wheels 46, 47. The bevel-wheel 43, and the pinions connecting it with the rack-rod 38, are carried upon a member 50 gearing with a wheel 53 upon a sleeve loose upon the fly-wheel boss; an extension of this sleeve carries a pinion 55, Fig. 13, which drives a wheel 56 having cam slots for engaging a rod 12 which operates the friction - clutch. Under normal running, the wheel 56 runs round the wheel 55 without rotation but operation of the rack rod 38 gives a differential motion which cause$the wheel 56 to turn partly upon its axis and actuate, by means of cam-slots, rods 12 which operate the friction clutch; further ...
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