Specification of John Chanter and John Gray
Subtitle: furnaces of steam boilers
Contributors: Gray, John
Publisher: Queen's Printing Office
Published: 1854
Place of publication: London
Language: eng
Subjects: Steam-boilers; Smoke prevention; Furnaces
Description: Patent for "a new combination of parts forming an improved furnace for consuming smoke and economizing fuel"
Notes: At head of title: A.D. 1835. No. 6920.

Cover title.

"John Chanter, of Earl Street, Blackfriars... and of Upper Stamford Street, in the county of Surrey... and John Gray, of Liverpool, in the county of Lancaster, engineer".