US1543515A - Cultivator bracket and cutter - Google Patents

Cultivator bracket and cutter Download PDF

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Publication number
US1543515A
US1543515A US738053A US73805324A US1543515A US 1543515 A US1543515 A US 1543515A US 738053 A US738053 A US 738053A US 73805324 A US73805324 A US 73805324A US 1543515 A US1543515 A US 1543515A
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bracket
cutter
arcuate
groove
blade
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US738053A
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Lynn W Pickard
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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
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
    • A01B33/10—Structural or functional features of the tools ; Theoretical aspects of the cutting action
    • A01B33/103—Structural or functional features of the tools ; Theoretical aspects of the cutting action the rotating shaft being oriented horizontally

Definitions

  • My invention relates to improvements in cutter blades and brackets for cultivators of the rotary type, as a new article of manufacture, wherein an arcuate bracket operates in conjunction with a detachable arcuate cutter blade, formed as a continuation of the arcuate bracket for breaking up the soil.
  • the primary object of the present invention is to provide a new article of manufacture in the form of a cutter blade and bracket for rotary cultivators.
  • Another object of the invention is to provide a new article of manufacture of the type set forth, wherein a rigid supporting member may be provided of inferior material to rigidly and effectively retain and support a cutting edge of a higher grade and more expensive material.
  • Another object of the present invention is to provide a practical and economical cutter blade comprising a small portion of a high grade material in the shape of a cutter bar which shall form a continuation of a lower grade supporting structure, the two parts being assembled in an effective and efficient manner.
  • Fig. 1 is a side elevation of the rotary portion of a cultivator disclosing my new article of manufacture applied thereto;
  • Fig. 2 is an end elevation of Fig. 1;
  • Fig. 3 is an enlarged transverse sectional view of the bracket and cutter blade taken on line 33 of Fig. 4 in the direction indicated;
  • Fig. 4 is an enlarged broken rear elevation of the bracket and blade, a portion of the drum beingshown in section.
  • the numeral 1 is used to designate any suitable type of drum mounted upon its axis 2.
  • a transverse bracket 3 is provided with side flanges 4 having lateral extensions 6 provided with suitable apertures 7 by means of which said bracket 3 may be screwed, bolted or otherwise secured upon the periphery of the drum 1 at regular intervals, as disclosed in Fig. 1 of the drawings, said bracket 3 being provided with an arcuate or curved seat 8 to conform to said periphery.
  • the bracket 3 is provided with an outwardly. extending arcuate portion 9, the purpose of which will hereinafter be more fully set forth.
  • arcuate portion 9 At the outer edge of said arcuate portion 9 I have provided a groove 11 and beyond the groove 11 and in spaced and parallel relation thereto I have provided a beveled surface which is offset from the curvature of the arcuate portion 9 a distance slightly greater than the thickness of an arcuate cutter blade 14 whose inner edge is seated within the groove 11, and which is shaped to form a continuation of the arcuate portion 9 of the bracket 3.
  • the back of the cutter blade 14 is also provided with a beveled portion 16 which is in a position to engage the beveled portion 12 of the bracket 3 when the inner edge of said blade 14 is seated within the groove 11 of said bracket 3.
  • a recess 17 is formed within the bracket 3 between the groove 11 and the beveled portionv 12 thereof and suitable bolts 18 pass through the bracket 3 just back of this recess and also through corresponding holes or apertures within the blade or cutter 14.
  • the bracket 3 thus becomes a rigid support for the cutter blade 14 and by means of this novel arrangement a minimum portion of high grade material as used for the cutter blade may be provided as a cutting surface with a lower grade of material for the supporting bracket.
  • the combination provides a simple, economical and practical structure for carrying out the process of cultivation, by the rotary method, in hard ground where grass and grass roots abound.
  • Fig. 1 of the drawings The operation of cultivating the soil and breaking the same up into minute particles is illustrated in Fig. 1 of the drawings.
  • the drum 1 is rotated at'a comparatively high rate of speed, approximately two hundred P. M., while moving forwardly.
  • This forward movement of the drum 1 causes each successive blade 14 to bite off a new section of soil, as illustrated, and its comparative rapid rotation first cuts a layer of soil, as illustrated at the first blade below the normal ground line, and the arcuate portion formed by "the blade 12 and arcuate portion 9 of the bracket 3 turns the soil toward the drum and into the pocket formed between the brackets on the periphery thereof.
  • the continued rotation of the drum 1 developes a centrifugal force which is imparted to the severed slice of soil and said severed slice is at once broken up by impact with the bottom of the furrow and the piled soil back of the drum.
  • the structure of the cutter blade 14: and its supporting bracket '3 provides a new and improved structure by means of which this desired result of first slicin-gthe soil and then breaking it up by impact is edecte'd.
  • This combination of'the present cutter blade 14 and its supporting bracket 3 provides an economical and practical means by which a durable cutting blade of high grade material may be provided at low costan-d great efficiency.
  • a cut- *ter comprising a transverse bracket having a transversely disposed arc-u'ate portion and atransverse groove arranged at the outer edge of said arcua'te portion, and likewise provided with a beveled portion beyond and in spaced relation with said groove and'with a recess between said groove andbeve'led portion; an arcuate cutter b la'de shaped to term a continuation of said arcuate portion of the bracket and having its inner edge seated within said groove, said cutter blade having a beveled-portion to engage the "beveled portion of the bracket; bolts passing through the recess iirt Kunststoffracket, between the groove and beveled portion of the bracket, and engaging the arcuate cutter blade to *move the beveled portion of-the cutter on the beveled portion of the bracket and thereby firmly seat and retainsaid cutter withinthe groove andcnto the bracket.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Threshing Machine Elements (AREA)

Description

June 23, 1925. 1,543,515
L. W. PICKARD CULTIVATOR BRACKET AND CUTTER Filegl Sept; 15, 1924 2 Sheets-Sheet 1 M/z zwme LYNN w. PICKARD June 23, 1925. 5 1,543,515
L. w. PICKARD CULTIVATOR BRACKET AND CUTTER Fiied Sept. 15', 1924 2 Sheets-Sheet 2 Patented June 23, 1925.
UNITED STATES LYNN 1V. PIGKAB-D, OIE SACRAMENTO, CALIFORNIA.
CULTIVATQR BRACKET AND CUTTER.
Application filed September 16, 1924. Serial No. 738,053.
T 0 all whom it may concern Be it known that I, LYNN W. PICKARD, a citizen of the United States, residing in the city of Sacramento, and in the county of Sacramento and State of California, have invented a new and useful Improvement in a Cultivator Bracket and Gutter, of which the following is a specification.
My invention relates to improvements in cutter blades and brackets for cultivators of the rotary type, as a new article of manufacture, wherein an arcuate bracket operates in conjunction with a detachable arcuate cutter blade, formed as a continuation of the arcuate bracket for breaking up the soil.
The primary object of the present invention is to provide a new article of manufacture in the form of a cutter blade and bracket for rotary cultivators.
Another object of the invention is to provide a new article of manufacture of the type set forth, wherein a rigid supporting member may be provided of inferior material to rigidly and effectively retain and support a cutting edge of a higher grade and more expensive material.
Another object of the present invention is to provide a practical and economical cutter blade comprising a small portion of a high grade material in the shape of a cutter bar which shall form a continuation of a lower grade supporting structure, the two parts being assembled in an effective and efficient manner.
I accomplish these and other objects by means of the improved device disclosed in the drawings forming a part of the present specification wherein like characters of reference are used to designate similar parts. throughout the said specification and drawings, and in which- Fig. 1 is a side elevation of the rotary portion of a cultivator disclosing my new article of manufacture applied thereto;
Fig. 2 is an end elevation of Fig. 1;
Fig. 3 is an enlarged transverse sectional view of the bracket and cutter blade taken on line 33 of Fig. 4 in the direction indicated; and
Fig. 4 is an enlarged broken rear elevation of the bracket and blade, a portion of the drum beingshown in section.
Referring to the drawings the numeral 1 is used to designate any suitable type of drum mounted upon its axis 2. A transverse bracket 3 is provided with side flanges 4 having lateral extensions 6 provided with suitable apertures 7 by means of which said bracket 3 may be screwed, bolted or otherwise secured upon the periphery of the drum 1 at regular intervals, as disclosed in Fig. 1 of the drawings, said bracket 3 being provided with an arcuate or curved seat 8 to conform to said periphery.
The bracket 3 is provided with an outwardly. extending arcuate portion 9, the purpose of which will hereinafter be more fully set forth. At the outer edge of said arcuate portion 9 I have provided a groove 11 and beyond the groove 11 and in spaced and parallel relation thereto I have provided a beveled surface which is offset from the curvature of the arcuate portion 9 a distance slightly greater than the thickness of an arcuate cutter blade 14 whose inner edge is seated within the groove 11, and which is shaped to form a continuation of the arcuate portion 9 of the bracket 3.
The back of the cutter blade 14 is also provided with a beveled portion 16 which is in a position to engage the beveled portion 12 of the bracket 3 when the inner edge of said blade 14 is seated within the groove 11 of said bracket 3.
A recess 17 is formed within the bracket 3 between the groove 11 and the beveled portionv 12 thereof and suitable bolts 18 pass through the bracket 3 just back of this recess and also through corresponding holes or apertures within the blade or cutter 14.
When these bolts 18 are tightened the recess 17 permits the beveled portion 16 of the blade or cutter 14 to be pulled against the beveled portion 12 of the bracket 3 and the effect of such movement is to firmly seat the inner edge of the cutter blade 14 within the groove 11 of said bracket 3. The bracket 3 thus becomes a rigid support for the cutter blade 14 and by means of this novel arrangement a minimum portion of high grade material as used for the cutter blade may be provided as a cutting surface with a lower grade of material for the supporting bracket. The combination provides a simple, economical and practical structure for carrying out the process of cultivation, by the rotary method, in hard ground where grass and grass roots abound.
The operation of cultivating the soil and breaking the same up into minute particles is illustrated in Fig. 1 of the drawings. The drum 1 is rotated at'a comparatively high rate of speed, approximately two hundred P. M., while moving forwardly. This forward movement of the drum 1 causes each successive blade 14 to bite off a new section of soil, as illustrated, and its comparative rapid rotation first cuts a layer of soil, as illustrated at the first blade below the normal ground line, and the arcuate portion formed by "the blade 12 and arcuate portion 9 of the bracket 3 turns the soil toward the drum and into the pocket formed between the brackets on the periphery thereof. The continued rotation of the drum 1 developes a centrifugal force which is imparted to the severed slice of soil and said severed slice is at once broken up by impact with the bottom of the furrow and the piled soil back of the drum. 1
This is the desired result and the present invention is best designed to accomplish it.
The structure of the cutter blade 14: and its supporting bracket '3 provides a new and improved structure by means of which this desired result of first slicin-gthe soil and then breaking it up by impact is edecte'd. This combination of'the present cutter blade 14 and its supporting bracket 3 provides an economical and practical means by which a durable cutting blade of high grade material may be provided at low costan-d great efficiency.
, Having thus described my invention what I claim 'as new and desire to secure by Letters Patentis -1. Theeombinationwith a cultivator drum cf a plurality of brackets mounted at regular intervals upon the Periphery of said drum, each bracket havin'gan 'arcuate transverse portion terminatingin a groove for the reception ofa cutter and a beveled portionbeyond said 'grooves; a short arcuate cutter blade mounted within each groove and having a beveled portion engaging the beveled portion of the bracket; and means for firmly seating and retaining the inner end of each blade within its respective groove and the beveled portion of said arcuate blade in con-tact with the beveled portion of the bracket. 7 V
2. The combination with a cultivator drum of a bracket having a transversely arranged arcuate portion and provided with a groove at the outer end of said arcuate portion and a beveled portion arranged beyond the groove, an arcuate cutter blade seated within the groove and having a beveled portion to engage the beveled portion of the bracket, said cutter 'blade being an 'arcuate continuation of the arouate portion'of the bracket; and means for moving and holding the beveled portion of the cutter blade against the beveled portion "of the bracket to seat the cutter and retain the same in an operative position firnily within the groove.
3. As an articie of manufacture, a cut- *ter comprising a transverse bracket having a transversely disposed arc-u'ate portion and atransverse groove arranged at the outer edge of said arcua'te portion, and likewise provided with a beveled portion beyond and in spaced relation with said groove and'with a recess between said groove andbeve'led portion; an arcuate cutter b la'de shaped to term a continuation of said arcuate portion of the bracket and having its inner edge seated within said groove, said cutter blade having a beveled-portion to engage the "beveled portion of the bracket; bolts passing through the recess iirtliebracket, between the groove and beveled portion of the bracket, and engaging the arcuate cutter blade to *move the beveled portion of-the cutter on the beveled portion of the bracket and thereby firmly seat and retainsaid cutter withinthe groove andcnto the bracket.
In witness whereof-I hereunto set my signature.
LYN'N W. 'PICKARD.
US738053A 1924-09-16 1924-09-16 Cultivator bracket and cutter Expired - Lifetime US1543515A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691927A (en) * 1948-12-24 1954-10-19 Marion G Denton Self-propelled ground working and clearing machine
US2712785A (en) * 1949-12-27 1955-07-12 Severance Joe Rotary cultivator
US2764925A (en) * 1951-10-24 1956-10-02 Joseph H Kalla Rotary cultivator
US2778291A (en) * 1954-10-19 1957-01-22 James F Kerns Rotary renovator
US2811912A (en) * 1953-01-08 1957-11-05 Rotary Hoes Ltd Earth-working rotor for an earthworking machine
WO2003031069A2 (en) * 2001-10-05 2003-04-17 Fae Italia S.R.L. Milling tooth and milling tooth holder for a comminution machine
WO2003077633A1 (en) * 2002-03-15 2003-09-25 Seppi M. S.R.L. Tool with a replaceable blade for milling machines treating floors and/or waste
US20060065412A1 (en) * 2004-09-28 2006-03-30 Bauer Mark A Zone tillage tool and method
US20100175901A1 (en) * 2007-06-12 2010-07-15 Digger Tools, S.L. Fastening Device for Coupling of Blades in Agricultural Cultivation Machines
FR3031870A1 (en) * 2015-01-22 2016-07-29 Plaisance Equipements TOOL HOLDER FOR MILLING OR SOIL MIXING DEVICE
US20170127610A1 (en) * 2015-11-03 2017-05-11 Johan Redekop Land Roller with Chopping Blades
US11122724B1 (en) * 2020-03-09 2021-09-21 Joshua Zulu Ground engaging tiller with involute profile

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691927A (en) * 1948-12-24 1954-10-19 Marion G Denton Self-propelled ground working and clearing machine
US2712785A (en) * 1949-12-27 1955-07-12 Severance Joe Rotary cultivator
US2764925A (en) * 1951-10-24 1956-10-02 Joseph H Kalla Rotary cultivator
US2811912A (en) * 1953-01-08 1957-11-05 Rotary Hoes Ltd Earth-working rotor for an earthworking machine
US2778291A (en) * 1954-10-19 1957-01-22 James F Kerns Rotary renovator
WO2003031069A2 (en) * 2001-10-05 2003-04-17 Fae Italia S.R.L. Milling tooth and milling tooth holder for a comminution machine
WO2003031069A3 (en) * 2001-10-05 2003-09-12 Fae Italia S R L Milling tooth and milling tooth holder for a comminution machine
WO2003077633A1 (en) * 2002-03-15 2003-09-25 Seppi M. S.R.L. Tool with a replaceable blade for milling machines treating floors and/or waste
US20060065412A1 (en) * 2004-09-28 2006-03-30 Bauer Mark A Zone tillage tool and method
US7575066B2 (en) * 2004-09-28 2009-08-18 Environmental Tillage Systems, Inc. Zone tillage tool and method
US20100175901A1 (en) * 2007-06-12 2010-07-15 Digger Tools, S.L. Fastening Device for Coupling of Blades in Agricultural Cultivation Machines
US8037943B2 (en) * 2007-06-12 2011-10-18 Digger Tools, S.L. Fastening device for coupling of blades in agricultural cultivation machines
FR3031870A1 (en) * 2015-01-22 2016-07-29 Plaisance Equipements TOOL HOLDER FOR MILLING OR SOIL MIXING DEVICE
US20170127610A1 (en) * 2015-11-03 2017-05-11 Johan Redekop Land Roller with Chopping Blades
US9949432B2 (en) * 2015-11-03 2018-04-24 Johan Redekop Land roller with chopping blades
US11122724B1 (en) * 2020-03-09 2021-09-21 Joshua Zulu Ground engaging tiller with involute profile

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