US831409A - Draft-equalizer. - Google Patents

Description

PATENTED SEPT. 18, 1906.

L. E. BOWMAN. DRAFT EQUALIZER.

APPLICATION FILED JULY 5, 1906.

2 SHEETSSHEET 1'.

/ H ATTORNEYS PATBNTED SEPT. 18, 1906.

L. E. BOWMAN. DRAFT BQUALIZER. APPLIOATION FILED JULY 5, 1906.

2 SHEETSSHEET 2.

ikm.

INVENTOR.

W/f/VESSES: L -t l I I A TTORNE Y5 UNITED STATES PATENT OFFICE.

DRAFT-EQUALIZEH.

Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed July 6,1966. Serial No. 324,908.

To aZZ whom it may concern:

Be it known that I, LAMBERT E. BOWMAN, a citizen of the United States, residing at Flanagan, in the county of Livingston and State of Illinois, have invented a new and useful Draft-Equalizer, of which the following is a specification.

This invention has relation to draft-equalizers and turning-gears for plows; and it consists in the novel construction and arrangement of its parts, as hereinafter shown and described. P

The object of the invention is to provide a device of the kind indicated especially adapted to be applied to gang-plows, and it is usually constructed so that four draft-animals may be used, two being hitched on each side of the tongue, and the off horse on the right-hand side will be the only animal required to move in the furrow.

The attachment consists of atongue, which is pivoted at its rear end with a yoke, which in turn is permitted to swing in a horizontal direction about a stud attached to the frame. The said yoke is pivotally attached to the end of the tongue, whereby the tongue may swing vertically with relation to the yoke. By this arrangement it is possible for the outer end of the tongue to have substantially a universal movement. The spindle of the wheel that supports the forward portion of the frame is pitched at an angle to a horizon tal, so that the wheel is canted in the furrow and is therefore braced against lateral strain. The wheel-spindle is a continuation of a vertical shaft which is ournaled to rotate horizontally in the frame. A sleeve is attached to the upper end of said spindle-shaft and at the outer end ofsaid sleeve is fixed ahorizontally-disposed sleeve. The last said sleeve receives a horizontally-disposed pin or stub shaft which is held against rotation. An arm is journaled upon the said pin or stub shaft and extends in a forward direction and said frame and the double and swingle trees are attached tothe cross connections of the gangplows by means of a suitable clevis, said clevis being located to one side of the said tongue or the line of draft of the implement, it being presumed that the line of draft of the implement is coincident with the longitudinal axis of the said tongue when the same is extended in a straight forward direction with relation to the frame.

In the accompanying drawings, Figure 1 is a top plan view of the draft-equalizer and turning-gear. Fig. 2 is a front elevation of the same.

The beams 1 1 of the gang-plows are connected together at their forward ends by the cross-bar 2. Theplate or clevis 3 is located at one end of the cross-beam 2. The frame 4 is superimposed above the plow-beams 1 1. The bell-crank shafts 5 5 are pivoted at their ends to the said frame 4 and at intermediate points are pivotally connected with the beam 1 1. The stud 6 is fixed at one corner of the frame 4. The rear end of the tongue 7 is hinged to the ends of the yoke 8. Said yoke is journaled upon the upper end of the stud 6 and may swing horizontally thereon. The tongue 7 may swing vertically with relation to the said yoke 8. From the above description it is obvious that the outer end of the said tongue may be moved in any direction, up or down or in curves, horizontal or vertical.

The frame 4 is provided at its forward end and at the side opposite to that to which the stud 6 is fixed with the lateral extension 9.

The bearing 10 is attached to the outer side of the frame extension 9. The upper end of the spindle-shaft 11 is j ournaled in said bearing 10, while the spindle 12 is formed at the lower end of said shaft 11 and extends at an obtuse angle to the longitudinal axis of the same. The furrow-wheel 13 is journaled upon the spindle 12 and is adapted to travel in the furrow. The wheel 13 is canted at an angle to the vertical side of the furrow, and consequently the said wheel is braced against strain and tends to maintain the implement in proper alinement with the furrow previously out in the ground. The sleeve 14 is fixed to the upper end of the spindle-shaft 11, and consequently is vertically disposed.

The web 15 is provided at its outer end with the horizontally-disposed sleeve 16. The pin or stub shaft 17 is fixed in said sleeve 16 but may be adjusted longitudinally therein, the set-screw 18 securing said pin or stub shaft 17 when in proper position. The rear end of the arm 18 is journaled upon the said pin or stub shaft 17. The rear end of the arm 18 is bifurcated, as at 19, and the collar 20 is located between the said bifurcations 19 19 and is secured to the pin or stub shaft 17 by means of the set-screw 21. The outer end of the said arm 18 is secured by means of j the cross-rods 22 and 23 to the rear portion of the tongue. The upper cross-rod 22 is of ordinary circular form in a transverse direction, while the lower cross-rod 23 is preferably made of angle-iron. The cross-rod 22 is located upon the upper surfaces of the arm 18 and tongue 7, while the cross-rod 23 is in contact with the lowest surfaces of said parts.

From the foregoing description it is obvious that as the tongue 7 is swung in a horizontal direction the arm 18 is correspondingly swung and, in fact, the arm 18 moves in any direction to correspond with the movement of the tongue 7. As the said arm 18 moves the spindle-shaft 1 1 is rotated upon its longitudinal axis, and the furrow-wheel 13 is caused to turn in the direction about ,to be taken by the implement.

The tree 24 is suitably secured to the clevis 3, and the trees 25 are attached in the usual manner to the said tree 24. It will be observed that the point of connection of the tree 24 with the cross-beam 2 is located upon the furrow side of the longitudinal axis of the tongue 7, which said axis for the purposes of explanation hereinafter is referred to as the line of draft of the implement. By the location of the point of connection between the tree 24 and the plow-beams with such relation to the line of draft of the implement compensation is made for the fact that one of the animals on the furrow side of the implement must walk in the furrow, and consequently this animal cannot exercise thesame leverage upon the implement as the other animals, for the reason that he is traveling over loose earth and is in a lower position.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A frame attached to a plow, a tongue connected with said frame and having universal movement at its outer end, a furrowwheel pivoted to the frame, a counter-shaft fixed with relation to the pivot of said furrow-wheel, means for adjusting said shaft longitudinally, an arm journaled upon said shaft, and cross connections connecting said arm and the tongue to ether.

2. A frame attache to a plow, a tongue connected to said frame and having universal movement at its outer end, a furrowwheel pivoted to the frame, a counter-shaft fixed with relation to said furrow-wheel pivot, an arm journaled upon said counter-shaft, means for adjusting said arm laterally upon the shaft, and cross connections connecting the end of said arm with said tongue.

3. A frame attached to a plow, a tongue attached to said frame and having universal movement at its outer end, a furrow-wheel pivoted to the frame, a counter-shaft fixed with relation to the pivot of said furrowwheel, means for adjusting said counter-shaft longitudinally, an arm journaled upon said shaft, means for adjusting said arm longitudinally of the shaft, and cross connections connecting said arm with the tongue.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

LAMBERT E. BOWMAN.

Witnesses:

ALBIN L. THoMPsoN, ALBERT SEALLENARF.

Images