US695259A - Hedge-trimmer. - Google Patents

Description

No. 695,259. f Patented Mar. ll, I902.

A. P. WISBOBG.

HEDGE TRIMMER.

tApplicB-tion filed July 13, 1901.1

(No Model.)

NITFD Starks Parent trick.

ANDERS P. \VISBORG, OF LEANNA, KANSAS.

HEDGE=TRIMMER.

SPEGIFIGATION forming part of Letters Patent No. 695,259, datedMarch 11, 1902.

Application filed July 13,1901. Serial No. 68,197. (No model.)

To Cl/ZZ whom, it may concern.-

Be it known that I, ANDERS P. Wrsnouc, a citizen of the United States, and a resident of Leanna, Allen county, State of Kansas, have invented certain new and useful Improvements in Hedge-Trimmers 3 and my preferred manner of carrying out the invention is set forth in the following full, clear, and exact description, terminating with a claim particularly specifying the novelty.

This invention relates to harvesters, and more especially to that class of devices therein known as hedge-trimmers; and the object of the same is to effect certain improvements in the details of construction.

To this end the invention consists in the clevice hereinafter more particularly described and claimed, and as shown in the accompanying drawings, wherein- Figure I is a perspective View of my improved hedge-trimmer complete. Fig. II is an end elevation. Fig. III is a detail of the standard. Fig. IV is a horizontal sectional detail through the clip.

Referring to thedrawings, 1 is the bodyof the framework, which is preferably a straight arm of wood having a handle 2. ()n this body are carried supports 3 and 4: for ballbearings in which is mounted the main shaft, described below, and at one extremity of the body is carried an eye 5 in line with said bearings, the plate which carries the eye also having a sector 6, with a slot 7 struck on a curve around the center of said eye.

10 designates the standard, which is an upright bar, preferably of wood, held under a clip 11, which passes through the body and through a block 12, standing between the body and standard, as best seen in Fig. 1V, and this standard has two .pads 14: to rest against the body of the user, as well understood in devices of this character. From the upper end of the standard rises rigidly a stifi metal rod 15, which is curved to conform with the shape of the wearers shoulders and has r pads 16 at proper points, as shown.

20 designates the cutting apparatus, which in the present instance has no peculiarities of construction, except that the ledger-plates are of steel. The knives reciprocate through the guards, as usual, and motion is imparted thereto by a pitman-rod 21, connected with a crank-pin 22, fast in a wheel 23, which is mounted on the end of the main shaft 24:. The latter carries at its opposite end the flywheel 25. The driving mechanism consists of a beveled gear-wheel 26, having a crank handle 27, the shaft of this gear-wheel being mounted in the ball-bearing journal 4L and the teeth of this wheel engaging with beveled gears 28 and 29, mounted on the main shaft 24. The former, 28, is fast thereon, and the latter, 29, is loose thereon, and the presence of two beveled gears instead of one prevents the drive-gear 26 from disengaging the teeth of the driven gear when the teeth are worn. When desired, the driven gear 28 may be loosened from the shaft, as by withdrawing its key 30, and the driven gear 29 may be fastened thereto, as by inserting a key or a setscrew through its hub.

The means for adjusting the cutting apparatus with respect to the body 1 comprises a bar or arm 40, pivoted on the main shaft 24: just above the eye 5 and beneath the crankwheel 23 and extending radially over the sector 6, and into this arm is threaded a setscrew 41, whose shank stands within the slot 7, as best seen in Fig. 2. When this set-screw is loosened, the arm may be swung around the main shaft 24 as a center and the setscrew will move within the slot 7, and after adjusting the cutting apparatus tothe proper position the set-screw is tightened to hold it thus.

Allparts are of the desired sizes, shapes,

proportions, and materials, although I preferably use metal for everything except the body and the standard.

Changes in the details of construction may be made without departing from the principle of my invention so long as the latter is covered by what follows.

What I claim is- In a hedge-trimmer, the combination with the body carrying bearings, and at one end thereof a plate having an eye in line with said bearings and a sector standing in a plane at right angles to the axis of said'bearings, and provided with a slot struck on a curve around said eye, a standard standing at right angles to the body and extending across the same and provided with pads, a clip on the body around the standard, a block between the standard and body, a rod projecting rigidly from the standard and curved to conform With the Wearers shou1ders,and pads on the curved portion thereof; of a driving-shaft journaled in the bearings and eye and having a crank, a driving beveled gear mounted in one of said bearings, two driven beveled gears on said main shaft, one of them being fast and the other loose; an arm journaled on the shaft between the eye and crank and extending across said plate, a cutting apparatus carried by this arm, a pitnian connecting the apparatus with the crank, and a set-screw in the arm and adjustable Within said slot.

In testimony whereof I have hereunto subscribed lny signature this the 10th day of July, A. D. 1901.

ANDERS P. WISBORG.

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