1858-06-07 James Ferrabee Patent No. 1277 P05

adjustments in an independent frame, which may be bolted to the main frame of the machine, and detached at pleasure. By this arrangement great stability is given to the cutting parts and steadiness in action; sharpening and repairs are also more easily effected, and the advantage of using a duplicate set of cutting parts to replace that removed for repairs will be afforded.

The distance of the cutting cylinder from the fixed blade ƒ is regulated by the adjusting pins e, e1, which also retain the cutting cylinder firmly and securely in its place. By slackening the screw e in the link d, and tightening the screw e1 on the carriage b, the cutting cylinder is placed nearer to the fixed blade, and by a reverse adjustment the cylinder is removed further from the fixed blade.

That portion of the frame A to which the fixed blade is attached is planed true, and also the top edge on which the carriage l slides; these two planed parts being parallel to each other. To the carriage l I fit a grinder made from wood covered with emery stone or some other suitable substance; this grinder traverses on the guide, and by revolving the cutting edges in contact with it, they may be sharpened.

Fig. 5 is an elevation, and Fig. 6 is a partial plan view of another arrangement of grass-cutter, in which the cutting apparatus is set between the carrying wheels & immediately below their axle, to allow of the cutting apparatus following the inequalities of the ground when the machine is at work.

A is one of the carrying wheels revolving loosely on the axle B; a is a cog wheel running loosely on the boss of the carrying wheel A and driving the wheel c, when the moveable clutch b is thrown into gear with the clutch on this cog wheel a, so as to set the working parts of the machine in motion; c is a cog wheel fast on the spindle d, and driven by the wheel a; e is a cog wheel fast on the spindle d, and driving the small cog wheel f, which is keyed on the axle of the cutting cylinder C. D is a guide wheel; E is the frame of the machine; g is a link connecting the frame of the machine to the main axle B; h is the adjusting lever moving on the main axle B, and connected by a link to to the cutter frame, and is for the purpose of raising or lowering the cutting parts; i is a catch jointed to the lever h, and taking into a rack on the frame E, whereby the adjusting lever is held in position; C is the cutting cylinder, which with the fixed blade and their adjustments are supported in an independent frame and bolted to the main frame of the machine, as already described in Figs. 1, 2, 3; k is the ground roll which may consist of one ring or several rings. This ground roll is carried by a link 1, which works in a guide on the frame E, and is connected to the lever m, which lever extends to the under side of the main axle B. The purpose of the ground roll k, in