Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 5121800 | Soil loosening device A soil loosening device connected with a pulling means provides for an intensive deep loosening of compact mainly agriculturally used soils and has for each loosening furrow two oppositely driven teeth in tandem arrangement, equipped with blades which for... | 06/16/1992 |
| 4293042 | Portable oscillating-ring harrow An oscillating harrow having a pair of harrow rings which can be raised and folded easily for transport. Each ring includes a pair of opposed, central segments which are disposed below a ground-travelling frame, and a pair of opposed side segments which a... | 10/06/1981 |
| 4252199 | Soil working machines A soil working machine has elongated carriers that extend transverse to the direction of travel, one behind the other. Eccentric mechanisms are attached to each carrier to move tools depending from the carriers, back and forth in directions parallel to th... | 02/24/1981 |
| 4232745 | Harvester with mechanical rod weeder and soil agitator A double, transverse, parallel tool bar is attached to the three-point hitch of a tractor. A depending shank is welded to each tool bar extension for mounting the rod weeder. Each shank has a forwardly and downwardly extending hard faced chisel tooth and ... | 11/11/1980 |
| 4187914 | Soil cultivating implements An implement has a forward row of soil working members that have flat blades and the blades are periodically raised and lowered to initially coarsely break the soil with pivotal motions induced by respective eccentrics mounted on a horizontal shaft. The m... | 02/12/1980 |
| 4111263 | Soil tilling machines A tilling machine has a frame with a row of tines or rotatable tined soil working members in a row that extends transverse to the direction of travel. A drive is connected to rock the tines or rotate the tined members during operation. The same drive has ... | 09/05/1978 |
| 4109730 | Soil tilling machines An agricultural machine has a frame and a rear tilling member connected to the remainder of the machine by a linkage that has at least four pivots. Driving means from a prime mover p.t.o. is connected via at least one eccentric and the linkage to reciproc... | 08/29/1978 |
| 4102402 | Subsoiler An implement having an elongated tool extendable into the subsoil to break up the hardpan and open the subsoil for moisture and tap roots of plants. The tool has orbital motion generated with power driven eccentric structures coupled to the tool. Power is... | 07/25/1978 |
