F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/149
F22B 37/24 (2006.01) F24H 9/14 (2006.01)
Patent
CA 1104891
ABSTRACT OF THE DISCLOSURE Connecting arrangement for a heating boiler, in whose water-bearing sheet-steel housing is arranged an in- stallation casting consisting of a combustion chamber and fuel-gas ducts, For having a good and simple connection between the sheet- steel housing and the installation casting the improve- ment consists in that the front and rear wall of the sheet-steel housing are provided with an access opening and the opening edges are bent in the form of a collar, the inside diameter of the collar being rather smaller than the outside diameter of the seating faces of the installat- ion casting and the front and rear wall being connected to -the seating faces by a press fit.
307118
Mcfadden Fincham
Viessmann Hans
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