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Title: |
1890 Article-Russell & Co., High Speed Steam Engine |
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Source: |
The Steam User 1890 pg xxix-xxxi |
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Insert Date: |
4/3/2011 12:28:56 PM |
The illustrations on the page opposite and preceding page are engravings of the Russell High-speed Engine. In the matter of bed two styles are employed—up to 75 H. P. the semi-girder, beyond this the "Tangye." Engines are provided with a shaft governor of original design, wearing parts being adjustable and removable. In operation such that it preserves lead constant for all points of cut-off; has two eccentrics, one under control of springs and weights communicating, through a second eccentric, a horizontal movement across shaft to valve-rod. Further, through these two eccentrics it is locked in every position and the forces that work on the valve cannot react on the governor in any part of the stroke.
The valve used is worthy of special notice. It is cast in one piece, takes steam internally. By means of needle ports, enough steam pressure is carried on back of valve to hold it to its seat; tendency of wear therefore, is always toward a tighter joint. Provision is also made against too much steam on back, making this an equilibrium valve. It is self-adjusting as regards wear, water, or position. Double ported as it is, gives for a certain length of travel double steam admission, an advantage at once apparent.
The shop practice and the methods employed by Russell & Co. in the details of Engine construction are not excelled in any factory similarly engaged. Beginning with the best of material, the most approved tools are applied to its development. Where others are satisfied with a tool finish, Russell & Co. go farther; grind all essential joints, lead lap shaft journals and wrist-pins, scrape wearing surfaces to a perfect bearing, and every effort is made to finish in as workmanlike manner as possible, finally testing under steam with a load varying from friction to maximum capacity. Using forged steel for shafts and rods with careful attention to proper balance in reciprocating parts, enables them to furnish an Engine that endures without breaking when loaded to maximum capacity.
This company is now making a Four-Valve Engine of its own design with "Tangye " bed and shaft governor in sizes ranging from 80 to 500 H. P. The Engine of this type runs at medium speed, and, considering the ample provision for adjustment, is simple in parts and highly efficient in economy and regulation. |
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1890 Russell & Co., High Speed Steam Engine
1890 Russell & Co., High Speed Steam Engine
1890 Russell & Co., High Speed Steam Engine Valve
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