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...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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Class 238/114 - Tube or box


Subclass of Class 238 - Railways: surface track
Definition: The rail-support is in the form of tubular section or box-shaped.
No. of patents: 1
Last issue date: 11/18/2003


NumberTitleIssue Date
6649237Mat consisting of tubes
A tube mat made of elastomer material in the form of an extrudate includes first and second front faces which are arranged in a vertical or angled manner in relation to the extrusion direction. A plurality of tubes extend in parallel in the extrusion dire...
11/18/2003
 
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