US103476A - Improved cultivator - Google Patents

Description

H. LAIRDQ Cultivator.

Patented May 24; 1870.

Witness 08:

Inventor;-

hnr. Washingkm UNITED STATES PATENT OFFICE.

HUGH LAIRD, OF MEOHAN IGSBURG, PENNSYLVANIA.

IMPROVED CULTIVATO R.

Specification forming part of Letters Patent No. 103,476, dated May 24, 1870.

To all whom it may concern.-

Be it known thatl, HUGH LAIRD, of Mechanicsburg, in the county of Cumberland, and in the State of Pennsylvania, have invented certain new and useful Improvements in Gultivators; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing, making a part of this specification, in which Figure 1 is a plan view of my improved device. Fig. 2 is a side elevation, and Fig. 3 is an elevation of the rear end of the same.

Letters of like name and kind refer to like parts in each of the figures.

My invention is an improvement in cultivators; and it consists, principally, in the peculiar construction and attachment of the several parts of the cultivator, by means of which the relative angles of the side beams can be varied, as is hereinafter shown.

It further consists in combining with said cultivator two scrapers, substantially as and for the purpose hereinafter specified.

In the annexed drawing, A and A represent two beams, constructed of either wood or iron, having their rear ends extended inward for adistance equal to about one-fourth of their length, and at an angle of about seventy degrees with the main beams. The beams A and ALare connected together by means of a crossbar, B, pivoted at its ends to or near their center, lengthwise, and by means of two arched braces, O and D, the former of which, being provided with two short slotted arms, 0, extendinghorizontally rearward, is attached near the front end of said beams by means of bolts 2', passing upward through the same and said arms, while the other brace, D, is connected to the rear or angular portions, A A, of said beams by means of bolts 61, passing through the same and through the two horizontal arms d, extending outward from said brace. Aclip, a2, formed upon the outer end of each arm, and embracing the beam,serves to retain each arm in a vertical position while the bolt is being changed. The arms (1 of the brace D are provided with a series of holes for the reception of the bolt d, in order to allow the rear ends of the beams A and A to be adjustedto or from each other; but it will be readily seen that if a longitudinal slot, passing horizontally through said arms, were provided in place of said holes, the same result would be attainable. Secured to and projecting outward from the front end of each beam A and A is a short pin, E, upon which are pivoted the couplingirons F of the tongue G, said coupling-irons being provided upon their forward ends with a bolt, j, which, passing through a slot, h, within the cross-bar H, are so secured to the latter by means of a nut upon their outer ends and a shoulder, f, upon their inner ends as to permit of their lateral adjustment, to enable the couplingiron to conform to the width of the front end of the cultivator.

Three shovels, I, are attached to each side beam, in the usual manner, the bolts of those in front and at the center serving to connect the arched brace G and the pivoted cross-bar B to the side beam. A supplementary shovel, I, is attached to the cross-bar B at or near its center, lengthwise, for use in cultivating fallow ground.

K and K represent two scrapers, having the form shown in Figs. 2 and 3, each of which is connected at its forward end to the side beams by means of a bolt, k, passing through both beam and scraper, and is in a like manner attached at its rear end to a downward and inward projecting portion, a or a, of the beams A. Two handles, L, secured to the arched brace D, and from thence curving upward rearward and to the left side, complete the device,

the operation of which is as follows:

For use in cultivating corn the scrapers are secured in place, the shovels I removed, and the beams adjusted to the desired width by means of the adjustable braces O and D and the adjustable coupling-irons F. The device being caused to straddle a row of corn, and driven forward, the earth upon either side of said row is loosened, and a suflicient quantity turned inward by the scrapers to thoroughly cover the roots. The handles being bent to the left side, the operator is enabled to walk in one of the hollows between the rows of corn, instead of being compelled to walk upon or straddle the furrow, as is usually the case.

For use in cultivating fallow ground the scrapers are removed and the center shovel, I, restored to place.

Having thus fully set forth the nature and merits of my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The means employed for rendering relatively adjustable the side beams, A and A, consisting of the arched braces O and D and bolts d and z, in combination with the pivoted crossbar 13, substantially as and for the purpose specified.

2. Also, the means employed for adapting the tongue to the Various Widths of the cultivator-frame, consisting of the coupling-irons F, provided with the bolts f, in combination March, 1870.

HUGH LAIRD. Witnesses:

J osnrn LEAS, E. B. BRANDT.

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