US378578A - Sulky-harrow - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

M. S. & W. A. DOOLITTLE.

SULKY HARROW.

No. 378,578. Patented Feb. 28, 1888.

(No Model.) I 3 SheetsShee't 2. M. S. & W. A. DOOLITTLE.

SULKY HARROW. No. 378,578. Patented Feb. 28, 1888..

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(No Model.) 3 Sheets'-Sheet 3.

M. S. & W. A. DOOLITTLE.

SULKY HARR'OW.

No. 378,578. Patented Feb. 28, 1888.

N. PETUIS. Phnlo-Lilhognphur, Washingtun. DAL

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-IIIARCUS S. DQOLI'ITLE, OF NORTH HAVEN, AND WVILSON A. DOOLITTLE, OF

HAMDEN, CONNECTICUT.

SULKY-HARROW.

SPECIFICATION forming part of Letters Patent No. 378,578, dated February 28, 1888.

Application filed June 13, 1887.

To all whom it may concern:

Be it known that we, MAROUs S. DOOLIT- 'ILE and WILsoN A. DooLITrLn, respectively residing at North Haven and Hamden, in the county of New Haven and State of Connecticut, have invented a certain new and useful Improvement in Sulky-Harrows; and we do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanyingdrawings,which form a part of this specification.

Our invention relates to an improvement in snlky-harrows, the object being to produce a machine of simple, durable, and cheap construction, having the harrow suspended by and controlled through one or more springs and virtually independent of the sulky.

With these ends in View our invention consists in a sulky-harrow having certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of a barrow embodying our invention. Fig. 2 is a detached broken view in plan of the harrow with its spring-and-pole connections. Fig. 3 is a View thereof in central longitudinal section.

The harrow consists, as herein shown, of two parallel frame-pieces, A A, three parallel cross-picces, B B 13, secured to them at right angles, and two rows of teeth, 0, respectively bolted to the under faces of the two framepieces, the teeth on one framepicce curving in one direction and those on the other in an opposite direction. A clod-crusher, D, consisting of a long bar having a beveled lower face shod with a steel plate, E, is held against the lower edges of the forward row of teeth by bolts F, carrying nuts G and suspended from short plates II II, located upon the upper edges of such teeth and having their ends bent to embrace the same. The position of the clod- Serial No. 241,151. (No model.)

been secured. The said harrow is pivoted at a central point in its forward edge to the rear end of a pole, I, pivoted at its forward end to the under face of the tongue J of the machine, the pivots at each point being confined to ver- 5 tical action. A draftiron, K, is secured to the under face of the said pole and midway of its length, whereby the draft of the team is applied directly to the harrow to obvious advantage in many ways. Braces L L, secured to the pole at a point forward of such draftiron, respectively extend to the opposite ends of the barrow, which they assist in holding in place. The forward end of the h'arrow is raised and lowered through a lever, M, pivoted to the rear end of the pole I and provided upon its rear face with a vertical series of notches, N, through which it is engaged with a frame, 0, receiving and guiding it and S6 cured to the tongue aforesaid. A cam-lock, P, also pivoted to the said tongue, .is arranged to be engaged with the outer face of the lever for holding its notched rear face in engagement with the frame against the vibration of the machine, tending to disengage it therefrom. 7 5 I'Vhen not in use, the cam is turned back, as shown by Fig. 2 of the drawings. A detent, Q, pivoted to the rear cross-piece of the sulkyframe It, is provided for engaging with the rear face of the lever and holding it out of engagement with the frame and free to play up and down therein, whereby it is virtually disconnected from the sulky. \Vhen not in use for this purpose, the said detentis swung upon its pivot and turned out of engagement with the lever.

Twooutwardly-bowedsprings,SS,arebolted to the rear ends of the outer two cross-bars of the harrow. The upper ends of these springs are secured to the ends of a beam, T, provided 0 at the central point of its inner face with a head, U, having a vertical series of holes, V, through which it is attached to a lover or arm, W, rigidly secured to a shaft, X, mounted in bearings Y, located upon the rear cross'piece 5 of the sulkyframe It,which is secured by clips Z Z to the axle A, carrying the wheels B B. The opposite end of said shaft X carries a notched segment, 0, engaged by a springactuated dog, D, mounted in the lugs of a I00 cated under the saidhand-piece, is provided for holding the same in that position in which it holds the dog away from the segment. The beam T carries a depending stop or guard, K, the lower end of which is normally held over the harrow, with which it engages to prevent a too great fieXion of the springs. Arms L L, secured to the forward cross-piece of the sulkyframe and depending on opposite sides of the tongue, embrace the pole I and hold the same against lateral displacement.

Under the described construction theharrow is suspended from the sulky and supported by the lever M and the springs S S, the latter being connected with the lever I as set forth. Practically, the harrow is largely handled and controlled by the said lever F,which requires but very little power or effort for its manipulation. By moving the said lever forward and looking it there, the harrow is lifted clear of the ground, permitting the sulky to be drawn or transported from place to place, and as well over rough as smooth surfaces. In his seat the driver may easily move the handle F back and forth to raise and lower the harrow, as required, for escaping obstructions and for securing its greatest abrasive effect; or the levers, either or both, may be set to the specific work to be done. In this case the springs alone will insure an automatic adjustment or conformation to the constantly-changing demand upon the harrow. By disconnecting both levers the harrow will float virtually independent of the sulky and of the broad base included between its two Wheels. It will thus be seen that by supporting and operating the harrow as described the machine is made easy to transport and to handle and widened in its range of usefulness. By placing the draft in the direct line of the load the power is applied to the best advantage and the sulky relieved of much strain. a

If desired,the forward operating-lever may be dispensed with. Other changes may also be made in carrying out the principles of our invention. WVe would haveit therefore understood that we do not limit ourselves to the exact construction and arrangement of parts herein shown and described, but hold ourselves at liberty to make such changes and alterations as fairly fall within the spirit and scope of our invention.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a sulky-harrow, the combination, with the tongue thereof, of apole extendingparallel with such tongue and pivoted at its forward end thereto to have vertical but not lateral pivotal action and similarly pivoted at its rear end to the harrow, a draft-iron secured to such pole, and guards depending from the tongue on opposite sides of the pole, which plays up and down between them, substantially as set forth.

2. In a sulky-harrow, the 'combinatiomwith a harrow consisting of a rigid frame having harrowteeth secured to its lower face, of an operating-lever secured to a shaft located in bearings attached to the vehicle-frame, an arm rigidly secured to such shaft, a bar pivoted to the outer end of such arm, and one or more springs directly secured to such bar and to the harrow-frame, which is raised, lowered, and pressed downward by it or them, substantially as set forth.

3. In asulky-harrow, the combination,with

a harrow consisting of a rigid frame having harrow-teeth secured to its lower face, of an operating-lever secured to a shaft located in bearings mounted upon the vehicle-frame, an arm rigidly attached to said shaft, a head having a vertical series of holes pivoted to such arm through one of the holes, a bar secured to such head, and one or more bowshaped springs directly attached to such bar and to the harrow-frame, which israised,lowered,and pressed downward by it or them, substantially as set forth.

4.. In a sulky-harrow, the combination, with a harrow consisting of a rigid frame having harrow-teeth secured to its lower face, of an operating-lever mounted upon the vehicleframe, a bar connected with such lever, one or more bow-shaped springs attached to such bar and to the harrow-frame, and a stop consist ing of a post attached to the bar and extending downward in position to engage with the harrow-frame to limit the fleXion of the spring or springs, substantially as set forth.

5. In a sulky-harrow, the combination, with the tongue thereof, of a harrow, a pole pivoted directly to the tongue and pivotally connected with the harrow, an operating-lever mounted upon the vehicle frame, one or more howsprings positively connected with such lever and attached to the harrow, which is raised, lowered, and presseddownward by it or them, substantially as set forth.

6. In a sulky-harrow, the combination, with the harrow thereof, of a clod-crusher located upon and sliding forward and back upon the teeth thereof, substantially as set forth.

7. In a sulky-harrow, the combi'natiomwith the harrow thereof, of an adjustable cloderusher consisting of a steel-shod bar clamped against the lower edges of the harrow-teeth by plates supported upon their upper edges, substantially as set forth.

' 8. In a sulliy-harrow, the combination, with the tongue thereof, of a harrow, a pole pivoted directly to the tongue and pivotally connected with the harrow, an operating-lever pivoted to the forward end of the harrow and extendtion in the presence of two subscribing wit ing upward through the vehicleframe, an opmesses. erating-lever mounted upon such frame, and

one or more bow-springs positively connected ggiggg? 5 with such lever and attached to the barrow, J

which is raised, lowered, and pressed down- XVitnesses:

ward by it or them, substantially as set forth. CHAS. B. SIIUMWAY,

In testimony whereof we sign this specifica- GEO. D. SEYMOUR.

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