...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 |
| 7066798 | Adapter for grinding machine Disclosed is an adapter for grinding machine comprising: a grinding shaft sleeve of cylindrical shape whose one end is open and having at least one through hole formed at a selected position of an outer circumference; a grinding shaft rotatably and movably fitted in... | 06/27/2006 |
| 6802759 | Grinder A grinder for grinding an outer surface of a roll, in particular one of a tissue cylinder and a machine glazed cylinder, the roll having an axis, including a grinding mechanism displaceable in a direction substantially parallel to the axis of the roll, the grinder m... | 10/12/2004 |
| 6616511 | Rolling mill equipped with on-line roll grinding system and grinding wheel A grinding head unit is constituted by a grinding wheel, a drive device for rotating the grinding wheel, and a movement device for moving the grinding wheel. When vibration of a mill roll is applied to the grinding wheel, a plain wheel integral with an ab... | 09/09/2003 |
| 6450861 | Rolling mill equipped with on-line roll grinding system and grinding wheel A grinding head unit is constituted by a grinding wheel, a drive device for rotating the grinding wheel, and a movement device for moving the grinding wheel. When vibration of a mill roll is applied to the grinding wheel, a plain wheel integral with an ab... | 09/17/2002 |
| 6283823 | Rolling mill equipped with on-line roll grinding system and grinding wheel A grinding head unit is constituted by a grinding wheel, a drive device for rotating the grinding wheel, and a movement device for moving the grinding wheel. When vibration of a mill roll is applied to the grinding wheel, a plain wheel integral with an ab... | 09/04/2001 |
| 6257964 | Roll grinding system for a roll A roll grinding system includes a roll with a pair of longitudinally opposite ends, a longitudinal axis extending between the ends, and an outer surface. A material removal tool is movable in a travel path along a length of the roll. The material removal ... | 07/10/2001 |
| 5997389 | In-line grinding device for mill rolls and/or pinch rolls In-line grinding device for mill rolls and/or pinch rolls, arranged in cooperation with the working surface of the working rolls (11) and/or support rolls (12) and/or intermediate rolls of a rolling stand for sheet, strip and/or wide plate, or in cooperat... | 12/07/1999 |
| 5954565 | Rolling mill equipped with on-line roll grinding system and grinding wheel A grinding head unit is constituted by a grinding wheel, a drive device for rotating the grinding wheel, and a movement device for moving the grinding wheel. When vibration of a mill roll is applied to the grinding wheel, a plain wheel integral with an ab... | 09/21/1999 |
| 5853318 | Roll surface grinder A roll surface grinder includes a frame mounted on a carriage assembly for traversing movement between opposite sides of the frame in a direction parallel to the axis of the roll subject to grinding. The carriage assembly includes a linear drive system fo... | 12/29/1998 |
| 5738570 | Arrangement for machining rolls during the rolling operation An arrangement for working or machining rolls which are mounted through chocks in roll housings. The arrangement includes a unit with abrasives for each roll, wherein the unit is mounted so as to be rotatable relative to the roll and so as to be adjustabl... | 04/14/1998 |
| 5722876 | Electric motor driven type on-line roll grinder, its control method and grinding method An electric drive motor with a small size and large rotary torque is used as a driving device for a grinding wheel of a grinding device. The motor such as an AC servo motor is encased in a casing to protect it from humidity, high temperature, scattered oi... | 03/03/1998 |
| 5618224 | Roll cleaning device A device for cleaning or polishing a roll (4), mounted for rotation about an axis and comprising a cleaning roller (41) mounted for rotation on a support device comprising two parallel arms (15, 16) extending, respectively, between an inner end (15a, 16a)... | 04/08/1997 |
| 5569060 | On-line roll grinding apparatus A grinding unit 5 comprises grinding wheel 20, a driving device 22 for driving the grinding wheel, and a shifting device 23. When the grinding wheel is subject to vibration of a work roll 1a, vibrating energy is absorbed by deflection of a plain wheel 52 ... | 10/29/1996 |
| 5562525 | Rolling mill equipped with on-line roll grinding system and grinding wheel A grinding head unit is constituted by a grinding wheel, a drive device for rotating the grinding wheel, and a movement device for moving the grinding wheel. When vibration of a mill roll is applied to the grinding wheel, a plain wheel integral with an ab... | 10/08/1996 |
| 4495734 | Grinding arrangement for chopping cutter of drum-chopper machine An arrangement for grinding a chopping cutter of a drum-chopper machine has a grinding tool, a grinding carriage which carries the grinding tool and is reciprocable parallel to an axis of rotation of the chopper drum over a length of the latter, a drive f... | 01/29/1985 |