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
Wilhelm Kohlmetz
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 GB190223135ApublicationCriticalpatent/GB190223135A/en
23,135. Kohlmetz, W. Oct. 23. Ceilings; floors; roofs; girders.-Fireproof ceilings or roofs consist of iron girders fixed in the walls and embedded in stone blocks C, Fig. 2, arranged parallel with the girders, and with ad jacent rows breaking joint. Short intermediate joists may be placed between the main girders. The girders consist of top and bottom T-irons connected by bars a<3>, Figs. 3 and 5. The flanges and web may be formed in one, as shown in Figs. 7 and 8. Strengthening-pieces a<4>, a<5>, Figs. 5 and 6, may be secured to the lower T-iron.
GB190223135D1902-10-231902-10-23Improvements in and Appertaining to Fireproof Ceilings or Roofs
ExpiredGB190223135A
(en)