US645222A - Post-hole auger. - Google Patents

Description

No. 645,222. Patented Mar. rs, |900.

cLL. ruTTLE. POST HDLE AUGER.

(Application ld; Dec. 4, 1899.)

mlmullllllmllll 1H: aims Evans co. Puoroumo., WASHINGTON. o. c.

2o the dot-ted line 2 2in Fig. l.

Unirse STATES PATENT Erre.

CHARLES L. TUTTLE, OF ROCHESTER, NEW YORK. p

POST-HOLE AUGER.

SECIFICATON forming part of Letters PatentNo. 645,222), dated March 13, 1900. Application tiled December 4, 1899. Serial No. 739,153. (No model.)

vof New York, have invented a new and usefnl Improvement in Post-Hole Angers, which improvement is fully set forth in the following specification and shown in the accompanying drawings.

My invention is an auger or device for bor- 1o ing post-holes by hand; and it consists in parts and devices and the operation of thev same, all `hereinafter fully described, and more particularly pointed out in the claims. Referring to the drawings, Figure l is a side elevation of the auger, partsbeing broken away and axially sectioned and other. parts shown in two positions -by fnlland dotted lines. Fig. 2is a plan of the cutting-head, the shaft being' horizontally sectioned, as on Fig. 3 is a side elevation of the head and lower part of the shaft, seen as indicated `by arrow 3 in Fig. 2. Fig. It is a view ofv the under surface o f the head, seen` as indicated by arrow 4 in Fig. 1, the cutter-sections being shown in different positions of adjustment by full and dotted lines. Fig. 5 is a diametrical'se'ction of the head and lower part of the shaft on the dotted lines 5 5 in Figs. 2 and 4. Fig. 6 is a 3o plan of the head-bar detached. Fig. 7 shows a throat or passage for the loose earth, the section being on the dotted line 7 7 in Fig.

In the drawings, A is the shaft of the auger, and B B the handles, said shaft and han- 3 5 dles being preferably of hollow metal, as gaspipe.

C is Ithe head of the auger, substantially circular in form, preferably screw-threaded onto the lower end of the shaft A, so as to be 4o removable therefrom, the plane of the head being at right angles with the shaft, as shown.

The lower end a of the shaft is made solid and tapered and formed with a spiral to aid in drawing the auger into the earth as it is turned by the operator.

5o therefrom, the bar crossing the shaft at right angles. This head-bar carries four independent quadrantal sectors or sections E E and F .hole to be cleared.

F, secured to the bar in pairs all in the same plane. The sections E E are the cutters, being formed with downwardly-projecting lips or cutting edges b 7), turned in opposite directions, as shown. The smaller carrier-sectionsF F are formed .with upturned edges c' c, extending obliquely over t-he :respective cntting edges l) l), forming between them spaces or throats d d, Figs. 4 and 7, for the earth loosened by the cutters to pass np through on top of the disk or head C. The cutter-sections E E, placed diametrically opposite each other, lap acrossthe under face of the barD on, opposite sides of the'shaft A, being held to said bar by bolts e e. These bolts pass through inclined slots f f, Fig. 4, in the sections, so

--that the latter' may be adjusted or moved bodily in the plane of the head through short distances radiallytoward orV from the shaft for the purpose of boring larger or smaller holes.- The outer front cornersofthe cuttersections are preferably formed with upturned lips gr g, as shown.

The smaller carrier-sections F F are held to the upper side of the head-bar D by hinges G G, so as to .swing from their normal hori zontalpositions in the plane fof the head up ward against the shaft A, as shown in Fig. l.

the bar D by the bolts e e, the minor parts of the hinges/i' t' being secured to the respective sections F F by some suitable fasteners la 7c.

The upward swinging of the carrier-sections F F allows small stones or other hard bodies loosenedby the cutters to pass upward onto the` head that would otherwise, if the sections wererigid, be liable to lodge in the throats d d and so clog the auger and render it necessary to lift it out of the unfinished When the parts F F descend to their normal positions after being raised at any time, their edges under the hinges abut against the opposing edges of the rigid parts E E, as shown, which prevents them from turning or dropping below the plane of the head C. v

The sections F F and the hinges G G do not change their positions relatively with the bar D,veXcept as to the upward swinging of the sections; as above described. The cut'- ter-sections E E are relatively adjusted with reference to said bar, the slots ff being pref- The main parts h h of the; hinges are held to IOO erably made at an angle of about forty-ii ve degrees with the bar D.

Openings Z,Figs. l and 5,are formed through the sides of the shaft below the head C to admit air under the head to prevent a vacuum being formed thereunder when the latter is drawn out of a hole to lii't out the loosened earth above it. This is essential, particularly when boring into Wet clay or qnicksand.

What I claim as my invention isl.- A post-hole auger comprisinga sh aft with handles, a head and head-har held by said shaft, and two pairs of independent quadrantal sections secured to said head-bar, the diametrically-opposite sections of one pair forming cutters and those of the other pair carriers, the adjacent edges of the sections overlapping and turned in opposite directions and the carrier-sections hinged lto the upper side of the head-bar, and means for limiting theido'wnward movement of the carrier-.sec-

lions, as set forth.

2. A post-hole auger comprising a'shaft with handles, a head and a head-bar held `by said shaft, and two pairs of quadrantal sections secured to the said bar each independentlyl of each other with the diametrically-opposite sections of. one pair lforming cutters and those of the other pair forming cai'rieis,ihe.adjacent edges ot' the sections overlapping and turned in opposite directions and the carrier-sections hinged to the upper ace ot'lsaid bar and having their edges adjacent the hinges extended beneath the adjacent edges of the cutter-secet. A post-hole auger c omprisinga shaft with Y' l handles therefoxga cross-bar on the shaft, cutterfsectons secured to the under face of the cross-bar, and carrier-sections hinged to the upper side of the vcross-bar, and vfasteningbolts `forthe cutter-sections and thecrossbar, theculter-sections having slots inclined to the cross-bar to receive said fasteners, snbstantially as shown and described.

In witness `whereof 1I have herenntozset Ymy .hand this 1st day of December, 1899, in the presence of twosubscribing witnesses.

CHARLES L. 'rU'rTLn Witnesses:

Enos SB. WHITMORE, M. L. WiNsrroN.

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