US174089A - Improvement in harrows - Google Patents

Description

P. PFEIFE'R.

HARROW.

No.1'74;,089. Patented Fe'b. 29, 1876.

N- PETERS. PHOTO LITHOGRAP UNITED STATES PATENT "O FI E.

PETER PFEIFER, OF DURHAMVILLE, NEW YORK.

IMPROVEMENT IN HARRows.

Specification forming part of Letters Patent No. 174,089, dated February 29, 1876 application filed January 17, 1876.

To all whom it may concern Be it known that 1', PETER PFEIFER, of Durhaxnville,,in the county of Oneida and State of New York, have invented certain Improvements in Harrows, of which the following is a specification:

The invention consists, fiIi t, in an improved arrangement of the locking IHGOhfllliSlllclD relation to the harrow; and, secondly, in a method of holding the teeth in three different angles; and, third, in a rod on the front of barrow, with two governors to regulate the barrow.

Figure Us a view of the harrow to which the improvements are applied. Fig. 2 is a perspective view of tooth and key, and iron pipe'bea-m inserted through the connecting.

beam with thumb-screw. Fig. 3 is a detached View of the pipe-beam, showinghow it is fastened with the thumb-screw when set in different angles. V

A is the iron pipe-beam. B is the harrowtooth fastened in beam A, with key G. D is the connecting-beam fastened on the beam A with the thumb-screw E. The thumb-screw E has a pivot on the lower end when thus inserted in pivot-bearings 1 2 3, as shown in Fig. 3, to hold the beam A when set in different angles. The beam A is firmly held at the difl'erent angles with the thumb-screw E, in the connectingbeam D. The beam A is attached close to the rear end of connectingbeam D, as shown in Fig. 2. and thus forms the fulcrum 'of the harrow when in operation,

or beam A may be placed in the center of the connecting-beam D, as shown in Fig. 1, and

apart when required.

give it more of a flexible motion, it required. 0n the rear end of beam D is an upturned end, and on tlie front end is an eye to receive back to a level position it is locked together,

as shown in Fig. 1. Harrows constructed in this manner areeasily put together or taken F is a rod through the eyes of the connecting-beams D, on the front of harrow. The draft of harrow comes on the rod F. In turning around, the clevis Gr slides from end of rod Fto the other end. H H are two governors on the rod F. If one or more beams be taken from the barrow the governors are tobe moved from each end, so that no two teeth follow in the same track, as shown in Fig. 1. When the beams are attached again, the governors H Here to be moved back to govern the teeth in the harroW.

claim 1. In a barrow, the connecting-beam D, constructed with locking-socket and lug, and with beam-socket, in combination with perforated beam and set-screw, substantially as and for the purpose described.

2. In a barrow, the combination of the rod Fand the draft-governors H H, as and for the purpose described.

PETER PFEIFER.

Witnesses:

W. H. PARMALEE, HENRY RoBERTs.

Having thus fully set forth the invention, I

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