US661748A - Lawn-mower. - Google Patents

Description

Patented Nov. l3, I900. J. F. STANLEY.

L A W N M 0 W E B.

(Application filed Ocfi. 5, 1899.)

2 Sheets8heet I.

(Nd Model.)

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Nu. 66|,74.8. Patented Nov. I3, l900.

' J. F. STANLEY.

LAWN MOWER.

(Application filed Oct. 5, 1899.)

nomuem 2 Sheets-Sheet 2.

.ment by springs 20.

UNITED STATES PATENT OFFICE.

JAMES F. STANLEY, OF MOORELAND, INDIANA.

LAWN-MOWER.

SPECIFICATION forming part of Letters Patent No. 661.748, dated November 13, 1900.

Application filed October 5, 1899.

mowers and more particularly to lawn-mow-' ers in which the cutting is done byareciprocating saw-toothed cutter, the object being to provide an improved machine of this class composed of a minimum number of simply and economically constructed parts, which will be easy in operation and not liable to breakage or undue wearwith ordinary usage.

In the drawings forming a part of this specification, Figure l is a perspective view of a lawn-mower constructed in accordance with my invention. Fig. 2 is a view, partly in plan and partly in horizontal section, through the traction-wheels and frame. Fig. 3 is a front elevation. Fig. 4 is a vertical sectional view on the broken line 4 4 of Fig. 2 with the inner casing removed to expose the gearing. in front elevation, of the crank-disk and part of the cutter-bar and its supporting slotted casting. Fig. 6 is a dot-ail view illustrating the adjustable bearing for the roller.

Like numerals of reference mark the same parts Wherever they appear in the several figures of the drawings.

Referring to the drawings by numerals, 6 indicates the shaft,which is journaled in suitable bearings 7 in two non-rotatable disks 8 and 9 and projects far enough beyond said disks to receive at each end a bevel cog wheel, as at 10 and 11, and atraction-wheel, as at 12 and 13, the disks 3 and 9 being pro- Vided with outwardly-projecting peripheral flanges 14 and 15 at right angles to the disks, which inclose the bevel cog-wheels. traction- wheels 12 and 13 have inwardly-projecting peripheral flanges 16 and 17, which form the treads of the wheels and inclose the flanges of the disks. Upon the outside of each bevel cog-wheel is secured a ratchetwheel 18, with which are engaged pawls 19, pivoted to the inner faces of the tractionwheels and held normally in such engage- By this means when the traction-wheels turn as the machineis pushed Fig. 5 is an enlarged detail View,

The

Serial No. 732,673. (No model.)

forward the bevel cog-wheels are caused to revolve in thesame direction; but when the traction wheels are turned backward by drawing the machine backward the pawls slip over the teeth of the ratchet-wheels and the bevel cog-Wheels remain stationary.

21 indicates brackets secured to the inner sides of disks 8 and 9, to which are secured the outer ends of a cross-bar 22, which holds the disks at a proper distance apart. Bars 23, secured to the inner sides of the disks, converge toward each other and are secured to the handle 24. Brackets 25 project rearward and downward from the disks and serve as supports for the shaft 26 of a roller 27, said shaft being journaled directly in the brackets or in adjustable bearing-blocks 28, slidably mounted in a slotted bar 29, secured to or formed with each bracket, the bearing-blocks being vertically adjustable in the slotted bar by means of set-screws 30 to regulate the height of cut of the grass.

31 3lindicate brackets secured to the disks, in which is journaled a shaft 32, which also passes through projections 33 on the disks. On one end of each shaft 32 isa bevel-pinion 34, which engages the teeth of the bevel cogwheels, whereby the shaft 32 is driven. A disk 35 on the opposite end of each shaft 32 carries a wrist-pin 36, which engages in a vertical slot in the head 37 of a bar 38, said bars 38 being cranked at 39 and secured at their ends to the ends of areciprocating saw-tooth cutter-bar or sickle 40. The sickle 40 rests upon a stationary cutter-bar 41 and is secured against rising therefrom by means of overhanging keepers projecting from the stationary bar, said stationary bar being secured to arms 42, projecting from the disks 8 and 9. The bars 38, which take the place of pitmen, project through openingsin the casings 43 and are connected therein with the wristpins 36.

When the machine is pushed forward, the two shafts 32 are simultaneously driven, rotating the crank-disks 35 in unison and exerting an even pull and push upon the opposite ends of the sickle 40, thereby insuring an easy and powerful movement of the sickle and relieving it of all strain whereby it might be bent or broken.

By means of the construction described I provide a neat, simple, cheap, strong, and durable lawn-mower com posedof aminimuin number of parts, easy and rapid in operation, and not liable to breakage or undue Wear un der ordinary usage. Having thus fully described my in vention,

what I claim as new, and desire to secnrfei by' Letters Patent of the United States, is

In a lawn-mower, the combinatiomnwith a frame comprising two disks, a cross-bar, cutter-bar and a handle, the disks being each provided with an outwardly-projecting peripheral flange and two brackets, of ashaft jourrnaled in the disks, the ends of which extend beyond the same, a traction-wheel rigidly secured to each end of the shaft and provided with an inwardly-projecting flange to overslotted and engages with the lap the flange of the disk, abevel-wheel loosely mounted on the shaft between each tractionwheel and the disk at that end, a ratchet between each traction and its companion bevel w'hee'lan'd connected therewith, a shaft journaled in the brackets on each disk, one end 'o'f'wliichl is provided with a bevel-pinion in engagement with the bevel-wheel and the 0pposite end is provided with a Wrist-pin, and a sickle upon the cutter-bar, each end of which is provided with a bar, the head of which is wrist-pin, s11 bstantially as described.

JAMES F. STANLEY. Witnesses:

JESSE G. HoUoK, DORA HAYNES.

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