US423218A - Spring-tooth harrow - Google Patents

Spring-tooth harrow Download PDF

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US423218A
US423218A US423218DA US423218A US 423218 A US423218 A US 423218A US 423218D A US423218D A US 423218DA US 423218 A US423218 A US 423218A
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spring
tooth
tooth harrow
section
harrow
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B35/00—Other machines for working soil not specially adapted for working soil on which crops are growing
    • A01B35/20—Tools; Details
    • A01B35/22—Non-rotating tools; Resilient or flexible mounting of rigid tools
    • A01B35/24—Spring tools

Definitions

  • Figure 1 is a plan view.
  • Fig. 2 is an enlarged end elevation of one of the toothbars in Fig. 1 and side elevation of one of the teeth attached thereto.
  • Fig. 3 is a section on line 1 1 in Fig. 2, looking from a point at the right.
  • Fig. 4 is a cross-section on line 3 3 in Fig. 2, looking from a point above; and
  • Fig. 5 showsenlarged lettered details from Fig. 1.
  • the frame as here shown consists of three sections, as in Fig. 1, each section being joint edly connected together by the links and the clevis E E, said links being connected in a vswiveled manner, as in Fig. 1, but more clearly illustrated in Fig. 5, in which figure a portion of the right-hand clevisE Eis broken one of the links it to said clevis.
  • the sections of the frame can tilt up and down endwise and sidewise, according to the varying contour of the surface of the soil.
  • These sections are attached by draw-bars F to the long bar C, and to said bars as many whiflietrees may be attached as desired, according to the number of horses used. (No Whiffletrees are here shown.)
  • the barrow-tooth is made out of a round rod of spring metal, having a shank which is attached to the beam A by the staple-bolt D, Figs. 2 and 3, said shank having an angled end 6 catching over the front side of the beam A. Back of the shank the rod is bent to form a loop H, and from said loop the remainder of the tooth is C-shaped or curved, as in Fig. 2. Y
  • the working end of the tooth is hammered or pressed so as to have three sides, and hence triangular in shape in cross-section, as in Fig. 4, thus presenting one of the apexes of two of the converging sides to the front.
  • the round metal harrowtooth having. its working end below the elastic-bowed body pressed or hammered, so as to make said end solid and triangular in cross section, sub stantially as set forth.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Description

- (No Model.)
F. E. CHURCH.- SPRING TOOTH HARROW.
WITNESSES INVENTOR ATTORNEY away, showing the swiveled attachment of UNITED STATES PATENT OFFICE.
FRANCIS E. CHURCH, OF KALAMAZOO, MICHIGAN.
SPRING-TOOTH 'HARROW.
SPFCIFICATION forming part of Letters Patent No. 423,218, dated March 11, 1890.
' Application filed November 16, 1889. Serial No. 330,554. (No model.)
fication, Figure 1 is a plan view. Fig. 2 is an enlarged end elevation of one of the toothbars in Fig. 1 and side elevation of one of the teeth attached thereto. Fig. 3 is a section on line 1 1 in Fig. 2, looking from a point at the right. Fig. 4 is a cross-section on line 3 3 in Fig. 2, looking from a point above; and Fig. 5 showsenlarged lettered details from Fig. 1.
At A are shown the tooth-bars of the harrowframe.
The frame as here shown consists of three sections, as in Fig. 1, each section being joint edly connected together by the links and the clevis E E, said links being connected in a vswiveled manner, as in Fig. 1, but more clearly illustrated in Fig. 5, in which figure a portion of the right-hand clevisE Eis broken one of the links it to said clevis. By this 'means the sections of the frame can tilt up and down endwise and sidewise, according to the varying contour of the surface of the soil. These sections are attached by draw-bars F to the long bar C, and to said bars as many whiflietrees may be attached as desired, according to the number of horses used. (No Whiffletrees are here shown.)
The barrow-tooth is made out of a round rod of spring metal, having a shank which is attached to the beam A by the staple-bolt D, Figs. 2 and 3, said shank having an angled end 6 catching over the front side of the beam A. Back of the shank the rod is bent to form a loop H, and from said loop the remainder of the tooth is C-shaped or curved, as in Fig. 2. Y
The working end of the tooth is hammered or pressed so as to have three sides, and hence triangular in shape in cross-section, as in Fig. 4, thus presenting one of the apexes of two of the converging sides to the front. This makes a strong tooth with sufficient elasticity out of lightweight metal, and a tooth that easily cuts its Way through the soil.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is
The round metal harrowtooth having. its working end below the elastic-bowed body pressed or hammered, so as to make said end solid and triangular in cross section, sub stantially as set forth.
In testimony of the foregoing I have hereunto subscribed myname in presence of two witnesses.
' FRANCIS. E. CHURCH.
Witnesses:
BELLE FREEMAN, L. N. BURKE.
US423218D Spring-tooth harrow Expired - Lifetime US423218A (en)

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