Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
237 words
A heating boiler comprising an outer housing, a cylindrical fire chamber wall in said housing extending axially from one end thereof and defining therewithin a primary fire chamber, a fuel burner extending into said chamber from said one end of said housing, a cylindrical fire spaced wall portion radially spaced outwardly of said fire chamber wall and extending along the length of said fire chamber wall and having a secondary cylindrical fire space wall portion extending axially beyond the length of said cylindrical fire chamber wall and being of a greater diameter than said fire chamber wall and defining in said secondary portion a secondary fire chamber connected to said primary fire chamber, wall means in said housing spaced radially inwardly of the interior of said housing and defining a chamber water space between said wall means and said fire space wall portion and said secondary fire space wall portion and defining a hot water tank between said wall means and the interior of said housing, gas discharge means including at least one conduit extending through said chamber water space to the exterior of said housing and communicating with the end of said secondary fire chamber which is remote from said primary fire chamber, and a tubular thin walled lining between said fire chamber wall and said fire space wall portion leaving a clearance therebetween which upon a predetermined operating boiler temperature is bridged by said lining.
Claim 2
Dependent Claim
237 words
A heating boiler comprising an outer housing, a cylindrical fire chamber wall in said housing extending axially from one end thereof and defining therewithin a primary fire chamber, a fuel burner extending into said chamber from said one end of said housing, a cylindrical fire spaced wall portion radially spaced outwardly of said fire chamber wall and extending along the length of said fire chamber wall and having a secondary cylindrical fire space wall portion extending axially beyond the length of said cylindrical fire chamber wall and being of a greater diameter than said fire chamber wall and defining in said secondary portion a secondary fire chamber connected to said primary fire chamber, wall means in said housing spaced radially inwardly of the interior of said housing and defining a chamber water space between said wall means and said fire space wall portion and said secondary fire space wall portion and defining a hot water tank between said wall means and the interior of said housing, gas discharge means including at least one conduit extending through said chamber water space to the exterior of said housing and communicating with the end of said secondary fire chamber which is remote from said primary fire chamber, and a tubular thin walled lining between said fire chamber wall and said fire space wall portion leaving a clearance therebetween which upon a predetermined operating boiler temperature is bridged by said lining.
Claim 3
Dependent Claim
55 words
A heating boiler according to claim 1, wherein said clearance between said lining and said fire space wall is so dimensioned that as soon at the temperature aligning attains about 1000° C. the lining applies due to its expansion to said fire space wall which is cooled by the water in said chamber water space.
Claim 4
Dependent Claim
32 words
The heating boiler according to claim 1, wherein said lining includes a side adjacent said burner provided with an outwardly projecting flange, said flange being supported on said fire space wall portion.
Claim 5
Dependent Claim
22 words
A heating boiler according to claim 1, wherein said lining is provided with a bottom adjacent said one wall of said housing.
Claim 6
Dependent Claim
18 words
A heating boiler according to claim 4, wherein said bottom of said lining is provided with an insulation.
Claim 7
Dependent Claim
18 words
A heating boiler according to claim 5, wherein said lining is made of a temperature resistant chromium-nickel steel.
Claim 8
Dependent Claim
15 words
A lining according to claim 4, wherein said lining is made of a ceramic material.
Claim 9
Dependent Claim
25 words
A heating boiler according to claim 1, wherein said at least one conduit comprises a smoke tube including a turbulator disposed in said smoke tube.
Claim 10
Dependent Claim
61 words
A heating boiler according to claim 1, wherein said at least one conduit defining said gas discharge means includes a plurality of circumferentially spaced smoke tubes extending through said chamber water space, said housing having a bottom spaced from the end of said fire space secondary wall portion through which gas exiting therefrom is delivered and deflected into said smoke tubes.