US1264447A - Harrow. - Google Patents

Description

F. 1. SELVERIA.

HARROWr APPLICATION FILE-D Aue.1s. 1912.

Patented Apr. 30, 1918.

2 SHEETSSHEET 1.

Z5 yf ATTORNEY F. 1. SILVERIAQ.

HARROW.

APPLICATION HLED AUG.I3| 19H- ]Patented Apr. 30, 1918.

2 SHEETS-SHEET 2.

INVENTQR a fiwwmmg WITNESSES ATTORNEY lltlFit FRANK J. SILVERIA, 0F NIPOMIO, CALIFORNIA.

HARROW'.

specification of Letters Patent.

Patented Apr. so, rare.

Application filed August 13, 1917. Serial No. 185,9?4.

To all whom it may concern:

Be it known that I, FRANK J. Sinvnnia, a citizen of the United States, residing at Nipomo, in the county of San Luis Obispo and State of California, have invented certain new and useful Improvements in Han rows, of which the following is a specification.

This invention relates to barrows, and more particularly to a harrow of the self cleaning type.

One of the main objects of the invention is to provide a harrow of the character stated of simple construction and operation which may be produced at relatively small cost. A further object is to provide a harrow having vertically movable cleaning elements for removing trash and foreign matter from the harrow teeth, these cleaning elements being so constructed as to cutthe trash from the teeth and efiectually clean. the same. A further object is to provide a harrow having beams of channel construction and spaced cleaning members for the harrow teeth, the

' beams and cleaning members being so related that, when in inoperative position, the cleaning members will be positioned entirely within the beams so as to be protected thereby, thus avoiding all projections such as would tend to catch in the ground being harrowed and interfere with the harrowing operation. Further objects will appear from the detailed description.

In the drawings Figure 1 is a top plan View of a harrow constructed in accordance with my invention.

Fig. 2 is a side view of the same with the cleaning members in raised or inoperative position.

F ig. 3 is a similar view with the cleaning members lowered.

Fig. 4- is a section on line 1d of Fig. 3.

Fig. 5 is a section on line 55 of Fig. 3.

Fig. 6 is a fragmentary detail of the means for securing the harrow teeth in position.

Fig. 7 is a section on line 77 of Fig. 6.

Fig. 8 is a section taken substantially on line 88 of Fig. 6.

The body of the harrow is composed of the spaced parallel beams 1 which are rigidly maintained in proper relation by the transverse brace bars 2 and 8, and the diagonal bar 4 secured to the beams. Beams 1 are of channeled construction being of inverted U- shape in cross section. Each beam is provided with a longitudinally extending series of suitably spaced teeth 5. Each of these teeth is of rectan ular cross section and is inserted through a suitable opening through the top 1 of beam 1. Tooth 5 is disposed with its diagonally disposed corners directed in the longitudinal plane of the beam. A. transverse securing bolt 6 is secured through the lateral arms 7 and S of the beam and fits snugly into an arcuate recess 6 provided in the rearward edge of the tooth. A second securing bolt 9 is secured through the arms 7 and 8 of beam 1 above bolt 6. Bolt 9 is provided with a V-shaped recess 10 which fits snugly about the forward edge portion of teeth These two bolts thus co operate to rigidly maintain the liarrow tooth in vertical position in the beam 1.

A transverse shaft 11 is rockably mounted, adjacent the forward end of the barrow, in suitable bearing straps 12 secured to the beams 1. A similar shaft 13 is r elatably mounted adjacent the reari'vard end of the harrow in bearing straps 1 1-. Shaft 11 bent at right angles at each end to provide an integral arm 15, shaft 13 being provided at each end with a similar arm 16. The lower end of arm 16 is pivotally secured by a bolt 17 to a pair of spaced parallel cleaning bars 18, this bolt being counter-sunk into one of the bars, and suitable spacing sleeves 19 and 20 being interposed. between the bars, and between the outer bar and arm 15, as shown in Fig. 5 of the drawings. By this construction the cleaning bars 18 are so connected to arm 16 as to be readily raised or lowered when shaft 13 is rocked. Arm 15 of shaft 11 is similarly secured to the cleaning bars 18 adjacent the forward end thereof. By rocking shafts 11 and 13 simultaneously, the cleaning bars may be either raised or lowered as desired, depending upon the direction in which the shafts are rocked.

Bars 18 are so spaced as to fit snugly against the lateral faces of the harrow teeth 5, and the interior width of beam 1 is such as to snugly receive the cleanin bars be-.

tween the lateral arms 7 and 8 of the beam and the sides of the teeth 5, when these bars are moved into raised or inoperative position as indicated in dotted lines in Fig. 4 of the drawings. By these means, the cleaning bars, when not in use, are covered so as to present no projection such as would interfere with the proper operation of the harrow. Shaft 11 is further provided, adjacent each beam 1, with a connecting arm 21 secured thereto at its upper end and connected at its lower end to a pair of cleaning bars which may be moved into and out of the intermediate beams 1, these arms corresponding to the arms 15 of shaft 11. Shaft 13 is provided with similar arms 22 connected to the cleaning bars of the intermediate beams and corresponding to arms 16 of this shaft. By these means, the teeth of all of the beams 1 may be quickly and easily cleaned in a single operation.

An upwardly directed arm 23 is secured to shaft 11 at the center thereof. The upper end of this arm is pivotally secured to the forward end of an operating link 2&. An arcuate rack 25 is secured to the rearward endof link 24. A spring pressed detent 26 carried by hand lever 27 and controlled by latch lever 28 cooperates with rack 25 to secure the lever in adjustment. The lower end of hand lever 27 is secured to shaft 13 at the center thereof, and the link 24 is pivotally secured to the hand lever at 29 midway between the ends of rack 25, the distance from shaft 18 to point 29 corresponding to the distance between shaft 11 and the point of connection between the link and arm 23. By disengaging detent 26 from rack 25, lever 27 may be easily moved in either direction so as to impartsimultaneous and similar rocking movement to shafts 11 and 13 thus raising or lowering the cleaning bars 18 for the teeth 5. The engagement of the detent with the rack 25 serves to nor mally maintain the cleaning bars in any desired adjusted position.

As will be noted more particularly from Figs. 4 and 5 of the drawings, the lower edges of cleaning bars 18 are beveled downward and inward as at 18 thus providing cutting edges which snugly fit against the lateral edges or corners of the teeth. When the cleaning bars are lowered, these cutting edges serve to eflectually remove trash, weeds, and other foreign material from the teeth so as to effectively clean the same. To permit the cleaning bars to be raised sufliciently to be contained entirely within beams 1, the beams are provided With suitable cut outs or notches 30 and 31 adapted to receive the spacing sleeves intermediate the outer cleaning bar 18 and the lower ends of arms 15 and 16, respectively. By rocking the shafts 11 and 13 forward and downward, the arms 15 and 16, and 21 and 22 will be swung upwardly and rearwardly through an are so as to raise the pairs of swinging bars into inoperative position within the beams 1. l/Vhen it is desired to clean the teeth 5, this operation is reversed, after which the cleaning bars may be returned to raised or inoperative position. When the cleaning members are lowered they are moved both longitudinally and transversely of the teeth 5 thus obtaining a draw cut which serves to readily remove all foreign substance adhering to the teeth. This insures proper cleaning of the teeth as well as facilitating operation of the cleaning apparatus.

This cleaning device, as will be obvious, may be readily applied to a harrow of standard construction employing beams of the channel or U-shaped type, avoiding the necessity of any extensive changes in the construction of the harrow itself. It will bo evident that there may be slight changes made in the construction and arrangement of the various parts of my invention without departing from the field and scope of the same, and I intend to include all such varir. lions, as fall within the scope of the appended claims, in this application in which a preferred form only of my invention is disclosed.

What I claim is 1. In harrows, a plurality of spaced beams each provided with a series of teeth, spaced cleaning elements fitting snugly about the. lateral faces of the teeth and movable longitudinally of the same, and means for operating said cleaning elements, said beams being adapted to receive the cleaning members when raised into their uppermost position so as to completely inclose the same.

In harrows, a plurality of spaced beams of channel construction each provided with a series of teeth, spaced cleaning members fitting snugly about the lateral edges of said teeth and movable longitudinally of the same, said cleaning members being adapted to fit between the teeth and the lateral arms of said beams when raised so as to be positioned within the beam, and means for opera ting said cleaning members.

3. In harrows, a plurality of spaced beams of inverted U-shape in cross section each provided with a series of teeth, a pair of spaced cleaning bars fitting snugly about the lateral edges of the teeth of each beam andv adapted to fit snugly between said teeth and the lateral arms of the beam when in raised position, transverse shafts mounted adjacent each end of the harrow and connected to said cleaning members so as to raise or lower the same when the shafts are rocked, and means for imparting simultaneous and similar rocking movement to said shafts and for securing the shafts in rocked adj ustment.

In testimony whereof I aflix my signature in presence of two witnesses.

FRANK J. SILVEAIA.

Witnesses F. J. FEENEY, A. R. MARSH.

(Copies of this; patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G."

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