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 |
| 5335735 | Cultivator shank assembly with cammed shank end receiver A shank assembly for mounting on a tool bar of a farm implement includes an upper shank section having a lower portion with a generally transverse slot near a distal end thereof and a lower section having an upper portion. The lower portion of the upper s... | 08/09/1994 |
| 5007187 | Snow plow arrangement for moisture retention in a field A snow plow member is attached to selected ones of the shanks of a cultivator frame by inserting the leading edges of the sweep at the lower end of the shank into slots formed on the rear surface of the snow plow member. A leading edge of the snow plow me... | 04/16/1991 |
| 4759301 | Seed drill A seed drill which will allow seed to be planted at a substantially constant depth regardless of contours and irregularities in the ground surface. The said drill has a tyne pivotally mounted on a frame for angular movement about a substantially horizonta... | 07/26/1988 |
| 4694759 | Seed drill A seed drill for applying seed and/or fertilizer has a frame, reservoir, and sowing shares. The sowing shares are attached to the frame in such a way that they can move in an upright plane by means of superimposed and at least approximately parallel strut... | 09/22/1987 |
| 4660652 | Hydraulic trip mechanism A trip mechanism which allows the ground working tool of an implement to pivot about three orthogonal axes. The tool is connected to a shank which is attached to a carriage. The carriage is pivotally connected to the frame of an implement through a ball j... | 04/28/1987 |
| 4452317 | Trip mechanism A trip mechanism for a ground working tool connected to a frame. The frame is connected to a carriage using a three point connection. A pivotal member is provided in the frame and a tension member is connected between one arm of the pivotal member and the... | 06/05/1984 |
| 4452319 | Disk harrow with individually spring-mounted disks A disk harrow has a frame adapted to be pulled along the ground in a normal travel direction and having at least one frame member, a mount on this frame adapted to secure same to a three-point tractor hitch, and a plurality of disk assemblies. Each of the... | 06/05/1984 |
| 4062410 | Adjustable moldboard for variable speed plowing A plow bottom is pivotally connected to the stub beam on a substantially vertical axis and yieldable biasing devices are provided which permit the moldboard to pivot about the axis as plowing speed is increased. Both mechanical and fluid biasing devices a... | 12/13/1977 |
| 4036303 | Soil cultivating machines A soil-cultivating machine has an elongated frame that extends horizontally and transverse to the direction of travel. A row of adjacent soil-working members are mounted on corresponding upwardly extending shafts which are geared to a common drive shaft a... | 07/19/1977 |
| 3999315 | Adjustable attachment for a backhoe An adjustable attachment for a backhoe comprises a single tooth pivotally connected to a frame, the tooth being capable of taking a plurality of angularly spaced apart positions on the frame. Tensioning means hold the tooth in a desired position, but also... | 12/28/1976 |
| 3995569 | Two part lawn treating machine A lawn treating machine consisting of a wheeled front section and a wheeled rear section hinged together by a hydraulically operated vertical hinge mechanism for steering the machine. The front section includes a hydraulically driven scattering mechanism ... | 12/07/1976 |
| 3960231 | Garden tractor A one wheel garden tractor is capable of pulling a garden sweep, shovel, planter or fertilizer, wherein this garden tractor can be used in narrow and confined areas. The tractor comprises a support frame having rearward extending handle bars and an engine... | 06/01/1976 |
