USRE13899E - wolfe - Google Patents

Description

a. c. a. H. K. WOLFE.

WEEDER. AND CULTIVATOR.

APPLICATION FILED n:c.3o, 1914.

mm Apr.6,1915.' V 13,899.

B-BHEETBSHBET 1.

V and Henry II. Wo/fe a v F L O W K um 0 C G WEEDER AND CULTIVATOR.

APPLICATION FILED DEC. 30. m4.

Reissued Apr. 6, 1915.

- UNITED STATES PATENT OFFICE.

GBOVER O. WOLFE AND HENRY K. WOLFE, OF CHENEY, WASHINGTON, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO ROTARY ROD WEEDER & MANUFACTURING COMPANY, OF CHENEY, WASHINGTON, A CORPORATION OF WASHINGTON.

wnnnnn Ann oun'rrva'ron.

Specification of Reissued Letters Patent. Reissued Apr, 6, 1915, Original No. 981,512, dated January 10, 1911, Serial No. 568,331. Application for reissue filed December 80,

1914. Serial No. 879,799.

To all it may concern:

Be it known that we, GROVER C. WoLFn and HENRY KgWonrn, citizens of the United States, residing at Cheney, in the county of Spokane and State of Washington; have invented certain new and useful Improvements in \Veeders and Cultivators; and we do hereby declare the following to be a full,

clear, and exact description of the invention,

such as will enable others skilled in the art to which it, appertains to make and use the same.

This invention relates to weeders and cultivators and has for an object to rovide a wheeled carriage carrying a sha t or rod adapted to be moved .below the surface of the ound and with means to rotate the rod.

T e further object of the invention is to provide a wheeled carriage having a rod vertically adjustable and adapted at times to be forced below the surface of the soil and with means operated from the wheels for rotating the rod at all positions.

With these and other objects in view the invention comprises certain novel constructions, combinations and arrangements of parts as will be hereinafter fully described and claimed. In the drawings :-'Figure 1. is a view of the improved cultivator and weeder in side elevation. Fig. 2 is a top plan view of the implement. Fig. 3 is a detail top plan view of one of the bearings of the rotating shaft. Fig. 4 is a view in sideelevation of one of the bearings-as shown in Fig. 3. Fig. 5 is a. detail, sectional view. of the bearing as taken on line 55 of Fig. 4. Fig. 6 is a top plan view of thecenter bearingproviding space for the sprocket. Fig. 7 is a view in end elevation of the center bearing shown in Fig. 6. Fig. 8 is a rear view of the center hearing as indicated by arrow 8 of Figs. 6 and 7. i

Like characters of reference design'atecorresponding parts throughout the several views. I

The frame 10 is supported by an axle 11 and wheels 12 and controlled n any usual or ordinary manner as by the tongue or pole 13. To the forward part of the frame 'a plurality of braces 14 are pivoted as at 15. At their lower and rearward endsthe braces 14 are provided with bearing blocks or rod 17. Alsov journaled upon the frame is a shaft 18 extending longitudinally thereof boxes 16 andtherein is journaled a shaft or segment 23v in the usual manner and rigidly connected with the shaft 18 whereby.

such shaft may be rotated to raise and lower the shoe blocks 16,. and the brace rods 14..

Centrally of the frame the shaft 11 carries a spur'gear 2.4 which engages a pinion 25- car'ried upon ashaft 26 which also carries a sprocket 27.. The sprocket 27 carries a. chain. 28 which passes overv a sprocket 29 upon the shaft 17 whereby when the shaft 11 is rotated by an action of the wheels 12 the shaft 17 is also rotated at a much greater rate of speed byreason of the interposition of the gearing mentioned.

The sprocket 29 is located in a housing 30 havin a bottom 31 which prevents the entry 0 dirt into such housing, such housing being carried by a brace rod 32 and pivoted to the shaft at the front of the frame. The housing 30 is also controlled by one of the arms 20 carried by 'the rod 18 and a right angularly disposed arm 33 also carries an idler sprocket 34 engaging the sprocket chain 28 whereby when the lever 22 has been manipulated to raise'the rod 17 the sprocket chain 28 is tightened to maintain such chain in operative. condition;

It will be apparent that with the parts disposed in such relation as shown at Fig. 1 the shaft'17 will be below the surface of the soil and when drawn across the field such rod will engage the roots of weeds and draw such weeds under the surface of the soil. The rotation of the shaft will be such as to' wind the weeds off from the rotating shaft so that it will constantly and automatically clear itself, whereb the weeds will be left upon the surface 0 the soil and the soil at the same time loosened and cultivated.

By cultivating the soil, werefer to the fact that when the shaft 17 is depressed downwardly into the soil, below the surface thereof, and maintained in such position, and also rotated, it necessaril follows that the subsoil engaged by the aft will be packed, and

- frame,

the surface soil necessarily loosened. Thus by loosening the surface soil, water will freely pass downwardly therethrough and will be retained by the packed soil just beneath the surface soil in' such a manner as to be held adjacent the roots, thereby preventing rapid evaporation.

We-claim:

l. The combination of a frame, axle and supporting wheels, of arms pivoted tovthc.

frame in front of the axle and extending to the rear thereof, a shaft journaled at the rear of the frame, a hand lever for rotating such shaft, lever arms carried by the shaft,

links connecting the lever arms to the rear extremities of the first-mentioned arms, a rotating member journaled at the extremities of the first-mentioned arms, a'sprocket chain conveying motion from the axle to the rotating member, and a chain tightener carried by the lever arm and moving with the shaft.-

2. In a soil weeder and cultivator, a

an axle for traction wheels upon the axle, arms pivoted to the frame'in front of the axle and extendthe frame, supporting ing to the rear thereof, a shaft journaled at the extremities of the arms in parallelism with the axle, means to force and maintain the shaft and the extremities of the arms below the surface soil, and means to rotate the shaft from the axle. i

3. Ina soil weeder and cultivator, support- I ing wheels, an axle and frame thereon, arms pivoted to the frame in front of the axle and extending to the rear thereof, a shaft journaled at the extremities of the arms, another shaft mounted to rotate upon the rear of the frame, levers and links connecting the lastmentioned shaft with the extremities of and to force the arm extremities and shaft mounted therein below the surface soil, and

means to drive the last-named shaft from the axle. a

In testimony that we claim the foregoing as our own, we hereby aflix our signatures in the presence of two subscribing witnesses. GROVER O. WOLFE. HENRY K. WOLFE,

Witnesses: Y

J. E. WHALEN, Fnonnnor. RUE.

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