1851 Great Exhibition: Official Catalogue: Class VI.: Augustus Radcliffe
From Graces Guide
328. RADCLIFFE, AUGUSTUS, 67 St. John's Street Road — Inventor and Manufacturer.
Model of a trigger for shutting off the steam of a locomotive engine, and stopping it in cases of danger.
Improved shifting quarry-board, for cutting to any angle at which the window may be set out.
Circle-board for cutting block, barometer, compass glasses, etc.
Glaziers' diamonds for cutting plate, sheet, crown, and all kinds of window glass; a portable circle cutting machine, or beam compass diamond, and a cylinder or shade cutting machine.
Artists' diamonds or points for etching, dragging, ruling, medallion engraving, etc.
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