US799399A - Combined spike and spring tooth harrow. - Google Patents

Description

N0. 799,399. PATENTED SEPT. 12, 1905.

J. R.-NAYLOR.

COMBINED SPIKE AND SPRING TOOTH HARROW.

APPLICATION nun 1120.21. 1904.

WITNESSES. l/VVE/VTOB ww w raqwm ZBV. (37/4/6417 ATTORNEY.

No. 799,399. PATENTED SEPT. 12, 1905. J. R. NAYLOIL. GOMBINEDSPIKE AND SPRING TOOTH HARROW.

APPLICATION FILED DEC. 27. 1904.

2 SHEETS-SHEET 2.

Fig: F 1'91: 0.

WITNESSES: )lVl/E/VTOR.

wWmM/M/ M, gwwf .22 W1 (7 14,

ATTORNEY UNITED STATES PATENT OFFICE.

JONATHAN R. NAYLOR, OF THREE RIVERS, MICHIGAN, ASSIGNOR OF ONE- FOURTH TO ALFRED E. NAYLOR, OF THREE RIVERS, MICHIGAN.

COMBINED SPIKE AND SPRING TQOTH HARROW.

, Specification of Letters Patent.

Patented Sept. 12, 1905.

. Application filed December 27,1904. Serial No. 238.513

To all whom, it may concern:

Be it known that I, JONATHAN R. NAYLOR, a citizen of the United States, and a resident of Three Rivers, in the county of St. Joseph, State of Michigan, have invented a new and useful Combined Spike and Spring Tooth Harrow, of which the following is a specification. v

This invention relates to combined spike and spring tooth harrows, in which harrows can be used one style of teeth at a time or both style of teeth at a time, as desired, and the invention especially relates to a harrow of this class patented to me in the United States May 30, 1899, No. 625,793.

The object of the invention is to produce a more possible and convenient planof adjusting a set of spike-teeth and a set of springteeth in their relation to each other in producing certain actions on .the soil and in throwing the sets of the teeth out of the soil.

In the accompanying drawings, forming a part of this specification, Figure 1 is a plan of one section of a harrow,.parts being broken away; Fig. 2, a side elevation looking from a point at the right of Fig. 1; Fig. 3, an enlarged plan of a front corner attachment of the barrow-frame; Fig. 4, an enlarged view looking from a point at the left of Fig. 3; Fig. 5, an enlarged side elevation of a rear corner attachment of the barrow-frame looking from a point at the left of the right-hand side or from a point at the right of the lefthand side of the barrow-frame; Fig. 6, an enlarged end elevation looking from a point at the right of Fig. 5 and showing a broken tooth-bar attached; Fig. 7, an enlarged elevation of one of the tooth-bar double supports looking from a point either at the left of the right-hand side of the frame or at the right of the left-hand side of the frame; Fig. 8, an enlarged section near dotted line 0 c in Fig. 1 looking from a point at the right, parts being broken away; Fig. 9, a plan of enlarged broken parts from the right-hand central portion of Fig. 1, and Fig. is an elevation looking from a point below Fig. 9.

Referring to the parts of the drawings pointed out by numerals, 12 represents the spring-tooth bars bearing spring-teeth 16, alternating with spike-tooth bars 13, bearing spike-teeth 15. These tooth-bars are made of tubular metal. Taking three of each style tooth-bars and beginning at the front with a spring-tooth bar 12, we would end at. the rear with a spike-tooth bar 13, as in my'former patent above referred to. By this means the last action on the soil was by spring-teeth, leaving a field in rough and uneven condition and frequently leaving furrows which storms would gully out and wash the soil away. I

overcome this by the addition of the fourth spike-tooth bar 20, bearing spike-teeth 15, the action of which is in the rear of any action by spring-teeth 16, leaving the soil in a line smooth cultivated condition.

One section of the barrow-frame is here shown; but two like sections are usually employed and attached to the draft-rod 17, to which whifiletrees are to be attached in the usual manner. The draft-rod 17 is here shown broken away at the right-hand end.

In making the frame-sections pipe-like rods 18 at the sides, 19 at the front, and 20 at the rear are used. The rods at the front corners are held firmly together by the elbow concaves 42, one above and one below and clamped together by bolts, as 21, Fig. 4. On the interior of the upper concave 42, Fig. 4, is a nib 43, which is to fit a hole in the rods 18 and 19 to prevent them from working loose or pulling out. The rear bar or rod 20 serves the purpose of a rear tooth-bar, as well as a rod of the frame-section at the rear. To secure the rear corners, I employ the single-tooth-bar supports 22. They are provided with horizontal concaves 23, Fig. 6, to receive the rear ends of the side rods 18. These tooth-bar supports 22 are bolted at 24 to the under side of the rods 18, and below this the supports are provided with a double Wall or an inner wall 25 and an outer wall 26, parallel therewith, and with a space 27 between, Fig. 6. In the inner wall 25 is a hole 28, Fig. 5, to receive the end of the tooth-bar 20 in a man ner to turn or partially revolve therein, Fig. 6, said tooth-bar 20 being broken away in said figure. The inner walls 25 form the support to the ends of the tooth-bar 20, the outer wall 26 prevents the tooth-bar from working too far endwise, and the space 27 provides for passing the hand in and inserting the springkeys 29 into holes in the ends of the toothbars to prevent the latter from drawing out of the holes 28.

The tooth-bar double supports 30 at the sides of the frame sections for the tooth bars 12 and 13 are the same as the supports 22 for the tooth-bar 20 except they are double, as

12 and 1.3, as in Fig. 1. Like spring-keys 29 are used in the ends of these tooth- bars 12 and 13 and serve the additional purpose of preventing the side rods 18 from springing out sidewise. Like coneaves fit on the under side of rods 18, and the supports 30 are bolted to the rods 18 at 31.

The tooth- bars 12, 13, and 20 have hearings in a central support 50, beneath the bar 35, Figs. 1, 8, 9, and 10. Each spring-tooth-bar 12 has an upwardly-extended arm 32, and their upper ends are pivotally attached to a bar 33. Each spike-tooth bar 13 has an upwardly-extended arm 34, the upper ends of which are pivotally attached to a bar 35, Figs. 1, 8, 9, and 10.

An ordinary lifting-lever 36 and rack 47 are shown in Figs. 1 and 8, it being attached to the arm of the spike-tooth bar 20' at the rear, and when swung forward the spike-teeth 15 are thrown out of the soil.

By means of a connection of one of the spring-tooth bars 12 with a spike-tooth bar 13 the spring-teeth 16 are thrown out of the soil at the same time the spike-teeth are thrown in the soil. 1 make this connection at a single point by means of what I term a toothed connection, consisting of teeth 44 on the hub of the spike-tooth arm 34 and a short arm 41, having a hub loose on a contiguous springtooth bar 12, said hub being provided with teeth 37, meshing with the teeth 44 of the spike-tooth arm 34. The spring-tooth arm 32, opposite the short arm 41, is provided with an arcuate way 39, and the short arm 41 has a lug 45, Figs. 1, 9, and 10, inserted through said way 39 and held secure by a thumb-nut 40. When thus held, a swing of the liftinglever 36 in either direction forward or back partly rotates the tooth- bars 12, 13, and 20 in one direction or the other in unison. By

means of bars 33 35, arms 32 34, and this simple toothed connection-at a single point the action of the lifting-lever 36 first on the spike-tooth bars 13 is very easy, whereas in my old patent above referred to, where the action was first on the spring-tooth bars and wherein sets of all the tooth-bars were gearedtogether, the operation of raising the sets of telelth was very difficult and sometimes impos- S1 e.

When desiring to adjust the spring-teeth 16 in their relation to the spike-teeth 15 with reference to their specific action in the soil or their non-action, I simply loosen the thumbnut 40, which frees all the spring-tooth bars 12, since the hub of the short arm 41 is loose on its tooth-bar, when by raising or hearing on one style of teeth all of that kind are set farther in or out of the soil.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States of America, is

1. Aharrow having a set of revoluble toothbars bearing spike-teeth, and a set of revoluble tooth-bars bearing spring-teeth, provided with upwardly-projecting arms, a bar pivotally attached to the upper ends of the arms of each set, a lifting-lever attached to the bar of the spike-tooth set, an arm of one springtooth bar being provided with an arcuate way, a short arm having a hub loose on said tooth-bar and by the side of the way and having a lug passed through the way, a thumbnut on the lug, and a toothed connection between the hubs of the short arm and the contiguous spike-tooth arm, substantially as set forth.

2. A harrow having difierent sets of revoluble tooth-bars provided with upwardly-projecting arms, a bar pivotally attached to the upper ends of the arms of each set, a lifting-lever attached to one set, an arm of a tooth-bar of another set provided with an arcuate way, a short arm by the side of said way loose on the tooth-bar and having a lug passed through the way, a thumb-nut on the lug, and a toothed connection between the hubs of the short arm and the contiguous spike-tooth arm, substantially as set forth.

JONATHAN R. NAYLOR.

Vitnesses:

ALLISON N. KNAPP, W'. E. BARNARD.

Images