Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7350347 | Crop raking device A crop raking device includes a rake wheel and a gauge wheel. The rake wheel is configured to rake crop in a field, with teeth disposed around a perimeter thereof, and has a vertically variable position. The gauge wheel is attached to the rake wheel, and is configur... | 04/01/2008 |
| 7313905 | Folding implement frame A folding frame for a drawn implement such as a hay rake is disclosed. The frame includes cushion fold cylinders, a lift cylinder, and a windrow width cylinder. The lift arms actuated by the lift cylinder lift the frame wings and engage a selector valve, providing a... | 01/01/2008 |
| 6195973 | Hay making machine with improved shaft coupling A hay making machine including at least two working elements in the form of rotary rakes which are carried by intermediate frames. The intermediate frames are arranged on a support frame and supported on the ground by at least one land wheel. The intermed... | 03/06/2001 |
| 6164052 | Retractable hay and bean fluffer The invented fluffer is a retractable hay and bean agricultural design for use in fluffing hay, bean and other crops. The retractable fluffer comprises: a pickup assembly 40 for fluffing hay or beans, the pickup assembly 40 is attached to and supported by... | 12/26/2000 |
| 6000207 | Disassemblable hay rake A towable hay rake is capable of being completely disassembled into parts having relatively homogenous dimensions, thus allowing the hay rake to be easily stored and shipped. In particular the hay rake of the present invention has the advantage that the e... | 12/14/1999 |
| 5918452 | Foldable, pull-type, V-rake apparatus A pull-type V-rake apparatus for use in raking cut vegetation. The V-rake is comprised of a left hand, side discharge, wheel rake assembly and a right hand, side discharge, wheel rake assembly operably connected by a forward pivotal subframe and a rearwar... | 07/06/1999 |
| 5743075 | Haymaking machine A haymaking machine which includes a frame that has two windrowing rotors driven in rotation about substantially vertical axes, the frame having a linkage beam which connects the axle of the first rotor to that of the second rotor, the beam being articula... | 04/28/1998 |
| 5685135 | Pull type V-rake A V-shaped pull type rake composed of a wheeled transversal element having a tow member extending longitudinally therefrom and a pair of rake arms attached at substantially each end of the cross member. The rake arms are moveable between an open position ... | 11/11/1997 |
| 5615545 | Towable "V" rake agricultural machine A "V" rake is provided that comprises: a first rigid support frame; a second articulated frame sliding on the first frame, made up of a plurality of mobile arms hinged to each other and to the first frame; at least one joint to slide the second frame on the first f... | 04/01/1997 |
| 5502959 | Tedder with adjustable rake rotors A hay tedder adapted to be supported from a tractor and which includes a plurality of raking rotors supported for rotation about generally vertical, inclined axes. The tedder includes a main frame for connection with the tractor and a carrier beam pivotal... | 04/02/1996 |
| 5493853 | Draw bar bifold hay rake A pull-type bifold hay rake includes a draw bar mounted at its rearward end to a cross-member, with a pair of rake arms pivotably mounted to the cross-member. A series of rotatable rakes are mounted to each rake arm for movement between a raised and lower... | 02/27/1996 |
| 5062260 | Pull type bifold hay rake This invention concerns a pull type hay rake which has the particularity of having an upside down "V" shape and to have two movable side elements, that open automatically when need for working and they close automatically when one has to transport on the ... | 11/05/1991 |
| 4996833 | Foldable haymaking machine having a plurality of rotors This invention relates to a haymaking machine comprising several tedding and/or windrowing rotors which are connected to a carrying frame having a central section and side sections which are connected to one another. According to the invention, each side ... | 03/05/1991 |
| 4172356 | Yard rake A raking mechanism is disclosed which comprises a side delivery raking means mounted on a frame having three support wheels. The mechanism can be self-propelled or towed for raking and/or dethatching mowed lawns, with clipped foliage being discharged to o... | 10/30/1979 |
