US823337A - Weeder. - Google Patents

Description

No 823,337. PATENTED JUNE 12, 1906.

J. H. LAMDRY.

, WEBDER.

APPLICATION FILED APR. 3. 1905.

2 SHEETS-SHE??? 67 ,5 '7 I o o. punl l muautoz No. 823,337. PATENTED JUNE 12, 1906.

.J. H. LAMDRY. WEEDER.

APPLICATION FILED A'PR. 3. 1905.

2 SHEETS-SHEET 2.

umminm V Y Eluuwioz 'Q/vitweowo attorney UNITED STATES JOHN H. LAMDRY, OF MORO, OREGON.

WEEDER.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed April 3, 1905. Serial No. 253,499.

.To ztZZ whom it may concern.-

Be it known that 1, JOHN H. LAMDRY, a citizen of the United States, residing at Moro, in the county of Sherman and State of Oregon, have invented new and useful Improvements in Weeders, of which the following is a specification.

The invention relates to an improvement in harrows or weeders, consisting in a construction having a plurality of weeding shovels or blades dependin from a frame.

The main object of the invention is the provision of means by which the improved weeder may be adjusted to control the cutting depth of the shovels.

The lnvention will be described in detail in the following specification, reference being had particularly to the accompanying drawings, in which- Figure 1 is a plan view of my improved weeder. Fig.2 is a side elevation of the same, the shovels or blades being shown in elevated position. Fig. 3 is a similar view showing the blades lowered into operative position. Fig. 4 is a transverse perspective through the shovel-frame, illustrating particularly the means for adjusting the forward end of said frame. Fig. 5 is a detail perspec tive, partly in elevation, showing the means for attaching the shovels to the frame.

Referring to the drawings, my improved weeder comprises a longitudinal draft-bar 1, to the forward end of which is secured the usual clevis 2 for convenient attachment to draft-animals.

The shovel-frame is secured directly to the draft bar, and preferably comprises two partsa rectangular frame 3, secured at the rear portion of the draft-bar, and a narrower frame 4, secured at the forward portion of the draft-bar. The frame 3 comprises longitudinal side bars 5 and cross-bars 6, while the forward frame 4 comprises longitudinal bars 7 and cross-bars 8.

The longitudinal bars 7 of the shovelframe 4 preferably extend rearward and are secured directly to the cross-bar 6 and the rear frame 3, said longitudinal bars 7 preferably diverging from the forward end of the frame 4 toward the rear end of frame 3, aiding to brace the structure. Brace-rods 9 are secured to the respective ends of one of the cross-bars 8 of frame 4 and project forward and are secured to the draft-bar 1. The rear cross-bar 8 of the frame 4 and each of the cross-bars 6, preferably three in number, of

be removed from their frame-support when desired.

The main feature of the present invention resides in means by which the shovel-frames may be vertically adjusted, my construction to this end providing for the independent adjustment of the forward frame 4 and for independent adjustment for each end of the rear frame 3.

The forward end of the front frame 4 is supported on caster-wheels 14, having vertica projecting stems 15, which pass loosely through bearings 16, secured in the forward cross bar 8 of the frame 4. The upper ends of the stems 15 loosely engage slotted openings 17 in the outer ends of levers 18, the inner ends of which are lapped and provided with registering slots 19. Intermediate the ends each lever 18 is fulcrumed on a post 20, supported by and extending upwardly from the front cross-bar 8 of the frame 4. A lever 21, fulcrumed at an intermediate point, as at 22, upon a post 23, secured on the draft-bar 1, is shaped at its forward or opposite end 24' to engage the registering recesses 19 of both levers 18, a nut 25 on the operative end of the lever reventing accidental disengagement of sai lever. The handle end of the lever 26 is arranged for locking engagement with the usual notched segments 27, by means of which the elevation of the operative endof the lever is adjusted.

The rear end of frame 3 is supportedgupon caster-wheels 28, carried at the lower end of angle-rods 29, which extend upwardly from said caster-wheels to the frame 3, being there bent at right angles and supported in bearings 30, the rod being continued slightly above and transversely parallel with the frame 3 to provide an operating-arm 31. Levers 32 are supported in parallel relation adjacent the forward end of the frame 3, the handle end of the lever being arran ed for operative engagement with the usua notched segments 33, while the opposite ends of the levers are pivotally supported in bearings 34. The free IIO ends of the arms 31 are provided with forwardly-projeoting rods 35, fixed to the ends of said arms 31 and projecting therefrom parallel with those portions of the rods 29 projecting from the frame 3 to the caster-wheels 28. This construction provides practically a crank-arm rod connecting the casterwheels with the frame,the free ends or members of which crank-rods normally project vertically from the frame and are arranged in parallel relation adjacent the levers 32. Links 36 connect the free ends of the rods with the levers intermediate the ends of the latter, by which the crank-rods supporting the caster-Wheels 28 may be rocked in the bearings 30.

Assuming the parts constructed and arranged as described and the shovel-frames elevated to inoperative position, as shown in Fig. 2, in which position the lever 21 is depressed at the handle end, while the levers 32 have been moved to their rearward limit of throw, the operation of my improved weeder is as follows: Should itbe desired to depress the forward portion of the frame 4, lever 26 is elevated at the handle end, which operates to depress the inner ends of the levers 18 and elevate their outer ends, and thereby lower the forward end of frame 4 to permit the desired engagement of the shovels in the ground. By moving either of the lovers 32 in the forward direction the crank-arm connection between the caster-wheels and the frame 3 is rocked in its hearings to incline the connection between the caster-wheels and frame, whereby the frame 3 is moved toward the ground, as w1ll be evident. Reverse operation of the levers will operate to elevate either or both of the frames. The weight of the shovel-frame will render positive the movement of these frames toward the ground when the levers are suitably operated.

The construction shown provides for the.

adjustment of the forward frame as an entiretyand for the independent adjustment of the respective side ends of the rear frame, whereby the weeder is adapted to be adjusted for engagement with the ground at the particular part desired.

The shovels 10 may be of any form or size desired to accomplish the particular Work in hand, and by preference all the parts of the structure described are of suitable metallic construction, by which life and efficiency of the apparatus are increased.

Having thus described the invention, what is claimed as new is A weeder comprising a rectangular shovelframe comprising longitudinal and transverse strips, an elongated shovel-frame comprising longitudinal strips secured to the transverse strips of the rectangular frame and projecting forwardly beyond said frame and transverse strips connecting the longitudinal strips with the elongated frame, shovels connected. to and depending from the transverse strips of each frame, crank-arms movably supported on the rear end of the frame, wheels mounted on the free ends of said arms, rods vertically movable in the forward end of the elongated frame, caster-Wheels carried on the lower end of said shafts, adjusting-bars pivotally supported on the forward end of the elongated f ame and movably connected with the upper end of said rods, the inner ends of said bars overlapping and being formed with slots, and a lever mounted on. the elongated frame and terminally engaging the slots in the ends of both of the adjustingbars.

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

JOHN H. LAMDRY.

Witnesses:

E. W. LEwIs, E. R. HrcKsoN.

Images