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 |
| 7163367 | Multi-position height adjustment system for a pipe handling apparatus A system for adjusting the height of a boom on a pipe handling apparatus. A cavity is formed in the base between proximal and distal ends. The boom is nestable in said cavity and has a distal end guided along the base. A pivoting member is pivotally coupled to said ... | 01/16/2007 |
| 6899510 | Pipe handling system for presenting sections of pipe to a derrick work floor having a pipe ejection assembly A pipe handling apparatus for raising and lowering pipe to and from a raised derrick work floor. The apparatus comprises a longitudinally-extending base, with a longitudinally-extending cavity therein. An elongate, longitudinally-extending boom member is provided, w... | 05/31/2005 |
| 6179909 | Work crystal orientation adjusting method and apparatus In the work crystal orientation adjusting method, the crystal orientations of a work 22 in the rotational direction and in the horizontal direction thereof are measured by an orientation measuring device 76. In accordance with the measured value of the cr... | 01/30/2001 |
| 6149376 | Pipe moving method, apparatus and system A system, apparatus and method are disclosed for moving an elongate object such as a pipe between lowered and raised positions, preferably while rotating the object to maintain its shape. The system and method use two apparatuses, an upender and a downend... | 11/21/2000 |
| 5284193 | Log splitter An improved log splitter having a first frame; a wedge fixedly attached thereto and extending outwardly therefrom; a carriage mounted for reciprocation upon the first frame; an abutment plate fixedly attached to the carriage and extending outwardly theref... | 02/08/1994 |
| 4446960 | Tubing loader A device for mainpulating and orienting elongate tubular stock receives such stock in a horizontal position, separates and individually spaces such stock, reorients it vertically and transfers it to associated equipment. Elongate stock is manually loaded ... | 05/08/1984 |
| 4410050 | Machine for inserting rigid members in the soil A continuously slowly moving machine automatically inserts rigid elongated members in the ground at regular intervals along the perimeter of a large field to facilitate anchoring a taut textile net placed over seedling grass. Several thousand of the membe... | 10/18/1983 |
| 4379676 | Pipe handling system A system for transferring lengths of pipe laterally between a pipe rack and a pipe handling apparatus. The system comprises two spaced apart arms located on one side of the pipe handling apparatus next to the rack. Each arm has one end pivotally coupled t... | 04/12/1983 |
| 4210096 | Apparatus for continuous enamelling of tubes The present invention relates to apparatus for the continuous enamelling of tubes. The apparatus disclosed incorporates an upender which is installed with provision for displacement along guides so as to transfer pipes from a horizontal position into a ve... | 07/01/1980 |
| 3961698 | Method and apparatus for turning logs Process and apparatus are provided for turning logs arranged in a row so that the root ends of all the logs are pointed in the same direction. A log whose root end is to be re-oriented is gripped while being conveyed along a first conveying path, and whil... | 06/08/1976 |
| 3931896 | Bar unscrambler An improved oscillating sling apparatus is disclosed for use in bar unscramblers. The oscillating sling comprises an endless chain with drive transmitting means for providing greater lineal speed of the chain at the forward or exit portion of the sling th... | 01/13/1976 |
