US Patent: 335,884
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| Direct Acting Engine
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Patentee:
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| George W. Bigelow (exact or similar names) - New Haven, New Haven County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 15, 1884 |
| Granted: |
Feb. 09, 1886 |
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Joel Havens
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Description: |
| Abstract:
This invention relates to an improvement in direct-acting steam-engines, particularly to that class which are commonly called "trunk-engines", the object of the invention being a simple and cheap construction with great facility for inlet and exhaust steam, whereby a very rapid movement may be attained and she invention consists in the construction of the valve and its chamber with relation to the port of the respective cylinders, and in details of construction.
Claim:
Ia a pair of single-acting engines, the combination of the two cylinders, a cylindrical valve-chamber between them, an annular steam-chamber in said valve-chamber, a passage opening from the valve-chamber from above the steam-chamber to one of the cylinders, and a like passage from below the steam-chamber to the other cylinder, an annular exhaust-chamber below the steam-chamber, and a valve consisting of three connected pistons-one above the steam-chamber, one below the exhaust-chamber, and one between the steam and exhaust chambers, the said valve open at its upper end and downward, closed at its lower end, and constructed with apertures opening from between the lower piston and the intermediate piston into the exhaust-chamber. |
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