US169115A - Improvement in earth-augers - Google Patents

Description

UNITED STATES PATENT OFFICE.

JACOB MINIGK', OF FLORIS, IOWA.

IMPROVEMENTv IN E ARTH-AUGERS.

Specification forming part of Letters Patent No. 169,115, dated October 26, 1875; application filed September 20, 1875.

To all whom it may concern:

Be it known that I, J ACOB MINIGK, of Floris, county of Davis and State of Iowa, h-ave invented certain new and useful Improvements in Well-Angers, of which the following is a specification The nature of my invention consists in the construction and arrangement of a well-auger, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, which forms a part of this specification, and in which- Figure 1 is a side elevation of my auger. Fig. 2 is .a vertical section, and Fig. 3 a bottom View, of the same.

A represents the well-auger bucket, made of sheet-iron, ot' any suitabledimensions, open at 'both ends, and fastened by rivets or otherwise to two parallel wrought-iron bars, B B, placed on opposite sides on the inside ofthe bucket.

v These bars extend a short distance below the lower end of the bucket, and are slotted or forked for a suitable distance from the lower ends upward. In the upper end ofthe slotin each bar B is pivoted a barorshank, C, by means of a bolt, which can be removed when desired. The

lower end of the shank O is bent at an angle and flattened, forming the foot C', to which the bit D is permanently secured. The normal position of the shank C is lengthwise in the slot of the bar B, against a stop, a, on the inner side of said bar, and it is prevented from turning outward by means of a button, b, on theouter side of said bar.

When the bucket has been illed by boring in the ground it is raised in the usualmanner to be emptied, and placed or held over a box or other receptacle. By simply turning they buttons b b upward the weight of the dirt in the bucket will swing the `bits and shanks outward, and the dirtfalls into the box, which is to be removed. As soon as the dirt has passed out of the bucket the bits and shanks swing back in their proper positions, and are fastened by turning down the buttons b again.

rIhe bits D are constructed as shown in Fig. 3, each closing a little more than one-fourth ofy the bottom of the bucket, and the inner ends .cof their cutting-edges d come close t0- gether in the center, thus cutting entirely across the entire diameter of the hole,leaving nothing in the center uncut. i

When the auger is used in quicksand, valves will be hinged to the rear edges of the bits, and fall over the cutting-edges, so as to lclose theentire bottom.

Having thus fully described my invention,

what I claim as new, and desire to-secure by Letters Patent, is-

' l. In a well-auger, the bits D D, constructed as described, with the inner ends fc of their cutting-edges meeting in the center, for the purposes herein set forth.

2. The bit shanks G, pivoted at their upper ends in the slotted bars B, in combination with the stops a and buttons b, substantially as and for the purposes herein set forth.

3. The combination of the bucket A, slotted bars B B, pivoted shanks O G, with feet O C .and bits D D, the stops a, and buttons b, all

constructed substantially as and for the purposes herein set forth.

In testimony that I claimvthe foregoing as my invention, I hereunto affix my signature this 28th day of August, 1875.

. JACOB MINIGK. Witnesses:

L. S. HARWARD, D. W. HASTINGS.

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