US158560A

US158560A - Improvement in land-rollers

Info

Publication number: US158560A
Authority: US
Publication date: 1875-01-05
Anticipated expiration: 1892-01-05

Description

UNITED STATES PATENT CDEEIoEC JOHN WOOLRIDGE, OF DEANS GORNERS, ILLINOIS, ASSIGNOB OF TWO- vTHIRDS HIS RIGHT TO ABEL B. SMITH, OF SAME PLACE.

IMPROVEMENT IYN LAND-ROLLERS.'

Specification forming part of Letters Patent No. 158,560, dated January 5, 1875; application filed- November 13, 1874.

frame; Figs. 7 and 8, details of thejoint; Fig. 9, a cross-section of the joint;

and Fig. l0, an

end view of the roller-frame and roller. Y

The object of this invention is to improve the main and roller frames of a land-roller of the class heretofore patented to me on the 21st day of January, 1873; and the improvements consist in making thecrossbar or connecting-bar which connects the two rol-1ers together of a single piece, and in improved joints for attaching this connecting-bar and roller-frames together. f

In the drawing, A represents the tongue or draft-pole; B, the cross-bar ofthe main frame; C D, the rollers; E, the roller-frames; F F, the braces; a, a face-plate or bearing on the roller-frame; b, a pin or pivot; c, ears for connecting the pivot or bolt b tothe bar B 5 and d a pivotal bolt. The main frame is made of the ordinary Wood tongue A, with a curved iron cross-bar, B, bolted together and held in place by suitable braces F. The bar B may have the ends carried down at an angle instead of a regular curve, if desired. To each end of the cross-bar B there is pivoted a bolt, b, by means of the ears c and the pivotal bolt d, which bolt d passes through an opening or hole centrally located in the roller-frames E, as shown at Fig. 4. The roller-frame E, as

'made from a single piece.

shown, is made of a single bar of iron or casting, brought or bent down at the ends, so as to project forward or backward according to the location of the frame in reference to the bar B, into which the rollers C D are journaled.

By this arrangement I am enabled to make the roller-frame of a single bar or piece, and by pivoting them at the center, as shown, the rollers have a free oating movement, so as to conform to the surface of the ground, and by pivoting the rear one to the bar B by means ofthe bolt d, it has in addition to the floating movement free play in the circle, of which Athe pin d forms a center, to facilitate the turning of the roller around corners, 8vo.

The roller-frame need not necessarily be The end pieces and the main cross-bar may be made separately, and be belted together. This, in large frames, will be the better method of construction.

What I claim as new is as follows:

I. The tongue A and fixed cross-bar B, in combination with the roller-frames E E, double swivel, Fig. 9, arranged in front and rear of the bar, the rear roller being pivoted to the end of the bar B, having a fio-ating and circular movement, as and for the purpose specied.

2. The Vdouble swivel, Fig. 9, composed of the bolt b, ears c, and bolt cl, in combination With the' roller-frame E, and cross-bar B, the rollers being attached to the ends of the said bar B, one in front and the other in rear, as speciied.

JOHN WOOLRIDGE.