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GB Patent: GB-189,809,387
Improvements in Sight Feed Lubricators
James Lionel Grandison - Manchester, England
William Pickett - unknown, England

USPTO Classifications:

Tool Categories:
propulsion and energy : steam engines : steam engine lubricators


Steam Cylinder Lubricator Co., Ltd. - Manchester, England


Patent Dates:
Applied: Apr. 23, 1898
Granted: Jun. 11, 1898

Patent Pictures:
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"Vintage Machinery" entry for Steam Cylinder Lubricator Co., Ltd.
Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue of the application and the patent #. This patent is #9,387 of the year 1898.


Relates to sight-feed lubricators of condensation or differential-piston type for supplying oil to the supply pipes and valve-chests of steam engines &c. Instead of the usual conical regulating-valve, a valve c with a hemispherical head c<1> is employed. In the cylindrical chamber d, forming an enlargement of the feed-pipe e, is placed the taper plug f, which is of such a length that it closes the pipe e when the valve head c<1> is on its seat d'.

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