Manufacturers Index - Mesta Machine Co.
Mesta Machine Co.
Homestead, PA, U.S.A.
Manufacturer Class:
Metal Working Machinery & Steam and Gas Engines
This page contains information on patents issued to this manufacturer.
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USPTO = U.S. Patent Office .
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DATAMP = Directory of American Tool And
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on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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1,197,376
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Sep. 05, 1916
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Gear-planing machine
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Lorenz Iversen |
Pittsburgh, PA |
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1,285,475
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Nov. 19, 1918
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Automatic exhaust-valve
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Wolfgang Turnwald |
Syracuse, Onondaga County, NY |
In the Stumpf Una-Flow Engine design, steam enters from either end of the cylinder, and the exhaust is at the mid-line of the cylinder. Steam enters alternately at either end of the cylinder. This interesting design was problematic in practice. For one thing, the cylinder experienced a temperature gradient, cool at the center and hotter and either end, which required the cylinder to be made with a slight taper to compensate. As well, the engine moved quickly, which stressed the valves and required the engine to be heavily built to withstand the stresses.
A 1922 condensed catalog from Ridgway Dynamo & Engine Co. lists "Unaflow Engine: Built under Stumpf patents. Steam jacketed heads, poppet valves and extremely simple valve gear. Bed, governor and reciprocating parts same as on Single Valve Engine. Recommended for high pressures, high superheat, and condensing service. Sizes 100 H.P. to 800 H.P." |
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1,761,470
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Jun. 03, 1930
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Cooling Bed
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Gustaf L. Fisk |
Midland, PA |
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2,400,996
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May. 28, 1946
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Metal Shear
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Lorenz Iversen |
Pittsburgh, PA |
This invention relates to metal shears and, in particular, to a plate shear adapted for cutting large and heavy metal plates. Plate shears heretofore in use have been subject to many disadvantages, particularly when they are of such size as to cut very large, thick plates. My improved shear is a self-contained hydraulically operated shear, which constitutes a compact unit of superior design and construction, and having great flexibility of operation.
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