Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Harold Roberts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB190321754ApublicationCriticalpatent/GB190321754A/en
21,754. Roberts, H. Oct. 9. Firebridges; smoke-consuming.-To supply air to the top and bottom of a boiler flue, and to provide means for removal, while the boiler is working, of the ashes which accumulate behind the bridge, a vertical air passage B is formed at the back of the bridge, and the space below the bridge is closed by a door C, which has an aperture D and is opened or closed from the front of the furnace by a rod E. Where there are no cross-tubes, a firebrick stop-bridge F is employed.
GB190321754D1903-10-091903-10-09An Improved Furnace Bridge for Steam Boilers.
ExpiredGB190321754A
(en)