Motor-grader implements

{
  "publication_number": "US3735818A",
  "country": "US",
  "kind": "A",
  "title": "Motor-grader implements",
  "abstract": "Apparatus for earth-working which consists of motor-grader mobile apparatus of the type which carries a subframe element in adjustable planar relationship with respect to the earth, said subframe providing adjustable support for a cutting and trimming implement which includes a first earth-cutting and moving implement in coactive combination with a moldboard for adjustable positioning and contact in a pre-set plane of said earth''s surface.",
  "claims": [
    "1. Earth-working apparatus comprising: first and second mobile means each including drive power source and mobile structure; central frame means of generally elongated form having each of first and second ends pivotally affixed to respective first and second mobile means for support therebetween; subframe means secured to and pivotally supported from said central frame means; ring member means rotatably affixed beneath said subframe means for circular rotation thereof; rotatable auger means rotatably and pivotally affixed beneath said ring members for circular rotation therewith; moldboard means disposed generally parallel to said auger means and pivotally affixed beneath said ring member means for circular rotation therewith; first and second control means for adjusting the position of each of said auger means and mold-board means relative to said ring member means; and means accomodating an operator rotatably affixed on top of said central frame means for selected positioning thereon to gain optimum surveillance.",
    "2. Earth-working apparatus as set forth in claim 1 wherein said first and second control means comprise: first and second hydraulic cylinder means each pivotally connected between said ring member and the respective auger means and moldboard means.",
    "3. Earth-working apparatus as set forth in claim 1 which is further characterized to include: drive means connected to said auger means to impart rotationable drive force to said auger means.",
    "4. Earth-working apparatus as set forth in claim 3 wherein said drive means consists of a hydraulic motor.",
    "5. Earth-working apparatus as set forth in claim 1 which is further characterized in that: at least a portion of said central frame means is adjustable as to the longitudinal angle; and means for adjusting said longitudinal angle of said central frame means portion.",
    "6. Earth-working apparatus as set forth in claim 1 which is further characterized in that: at least a portion of said central frame means is adjustable as to longitudinal angle; and means for adjusting said longitudinal angle of said central frame means portion.",
    "7. Earth-working apparatus as set forth in claim 1 wherein said auger means comprises: central shaft means of generally elongated form; and vane means arranged in a continual helical flight making a plurality of revolutions around said shaft means along the length thereof.",
    "8. Earth-working apparatus as set forth in claim 7 which is further characterized to include: a plurality of toothed cutter elements arranged in a helical flight and extending around said central shaft means a plurality of times at a pre-set distance displaced from said flight of vane means.",
    "9. Mobile earth-working apparatus, comprising: frame means; subframe means pivotally supported from the frame means; ring member means rotatably affixed beneath the subframe means for circular rotation thereof; rotatable auger means rotatably affixed beneath the ring member means for circular rotation therewith; moldboard means disposed generally parallel to the auger means and affixed beneath the ring member means for circular rotation therewith; hydraulic cylinder means secured to the frame means and to the subframe means pivotally controlling the attitude of the subframe means; thereby controlling the attitude of the auger means and the moldboard means; and control means connected to the auger means and the moldboard means adjusting each relative to the subframe means, the control means comprising: first and second hydraulic cylinder means each having one end connected to the subframe means and having respective remaining ends connected to the moldboard means and the auger means; and actuation means for controlling the hydraulic cylinders to raise and lower the moldboard means and the auger means.",
    "10. Apparatus as set forth in claim 9 wherein said auger meaNs comprises: central shaft means of generally elongated form; vane means arranged in a continual helical flight and extending a plurality of revolutions around said shaft means along the length thereof.",
    "11. An apparatus as set forth in claim 10 which is further characterized to include: a plurality of toothed cutter elements arranged in a helical flight extending around said shaft means a plurality of times at a pre-set distance displaced from said flight of vane means."
  ],
  "cpc": [
    "E02F 3/783",
    "B62D 53/02",
    "E02F 3/764",
    "E02F 9/0841",
    "E02F 9/166"
  ],
  "assignees": [
    "CMI CORP OKLAHOMA CITY"
  ],
  "filing_date": "1970-10-19",
  "publication_date": "1973-05-29",
  "grant_date": "1973-05-29",
  "priority_date": "1969-01-23",
  "application_number": "US-3735818D-A",
  "family_id": "26765920",
  "citations": [
    "US2068433A",
    "US2379469A",
    "US2494324A",
    "US3091873A",
    "US3136078A",
    "US3423859A",
    "US3490539A",
    "US3503450A",
    "US3568778A",
    "US3610341A"
  ]
}