US81700A - Improvement in gang-plows - Google Patents

Description

P. H.STANDISH.

Gang Plow.

Patented Sept. 1, 1868.

UNITED STATES PATENT OFFICE.

P. H. STANDISH, OF MARTINEZ, CALIFORNIA, ASSIGNOR TO HIMSELF AND OLIVER C. COFFIN.

IM PROVEM ENT IN GANG-PLOWS.

Specification forming part of Letters Patent No. 81,700, dated September 1, 1868.

To all whom it may concern:

Be it known that I, I. H. STANDIsH, of Martinez, in the county of Contra Costa and State of California, have invented a new and useful Improvement on Gan g-Plows; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification. j

Figure l is a side elevation of my invention. Fig. 2 is a plan or top View. Fig. 3 is a rear elevation. Figs. 4, 5, 6, and 7 are sectional and detached views.

Similar letters of reference indicate corresponding parts in the several figures.

The object of the within-described invention is to raise and lower the plows into and out of the ground with greater ease and convenience; also, the means of adjustment of the tongue Vfor a proper line of draft, and the manner of attaching the plow-standards to the bed or beam.

Fig. 2 shows the shaft or axle D, which is cranked at x, and more fully shown in Fig. 3 5 has a tooth or notched wheel, E, on the opposite end, held in position and made adjustable by the set-screw Y in its hub F. Near the periphery of the toothedwheel E is a hub,

j G, receiving the axle of the furrow-wheel A,

and secured thereto by the set-screw p.

The lever M in Fig. 3 has a hole in its lower end, through which passes the main axle or shaft D, and upon which it is pivoted.

This lever is provided with a pawl or catch, to

work either way, as desired.

It will be seen that a short reciprocating motion of the lever M in Fig. 1 will work the pawl I, which is shown turned forward, and will raise the plows from the ground, and will be retained in that position by the foot-pawl or catch N until another stroke is given to the lever M, when the plows are raised still higher, as the case maybe. The foot'pawl or catch keeps the gage of the plowing.

When the plows are out of the ground and the lever-pawl I is set to work forward,-by tripping the foot-pawl N the plows drop instantly to the ground, and go down to their greatest depth unless arrested by the Ifootpawl N at the depth required.

In Fig. 7 is shown the adjusting-bolt J, which passes through the olevis It, that is made fast to the rear end of the tongue H. By unscrewing the nuts S S the tongue is allowed its upward or downward adjustment, being pivoted on the bolt Q. By unscrewing and screwing the nuts on the ends of the bolt or rod J, the tongue has its lateral or side adjustment, the hole in the tongue, through which the bolt Q passes, being made oblong to allow it to work. The object of the adjusting-tongue is to get a proper line of draft.

The plow-standards are fastened to the side ofthe bed or beam B, and are made in a cranked or elbow form, with a slot and setscrew at the horizontal forward terminus, and are pivoted upon the bolts o, which pass through the hole tin the turn of the standard, as shown in Fig. 4. The end of the set-screw rests upon the bed B after passing through the lag or boss of the standard of which it is a part. By this means the plows are more nicely trimmed and kept upon a line with respect to each other, which becomes necessary by the frequent sharpening and changing their set or position.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The wheel E, lever M, with pawl I and foot-pawl N, and manner of arrangement thereof.

2. The tongue-adjusting rod J, clevis It, plate P l, as arranged and secured to the bed or beam 3. The construction and arrangement of the

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