Domestic boiler
OwnerArthur G. Wigdahlinventor
Life of this patent
Estimating the term…
Abstract
A boiler construction is disclosed which eliminates the need for bolting together of internal parts thereby greatly facilitating mass production and rapid assembly procedures. Internal side protectors, in addition to establishing the size of the boiler in the front-to-back direction, serve as support rails for a removable boiler module and as a retainer for fire bricks which are further retained by a firebox grate. Front and back protectors for the boiler interior rest upon the grate support members and are maintained in properly spaced relationship through interfitment with the side protectors. A boiler scraping attachment and boiler tube cleaner are disclosed. A positive releasable retainer arrangement for the slide-in, slide-out boiler module is included.
Claims9
A boiler comprising a shell having side walls and a rear opening, a grate support in the shell at an elevation below said rear opening, a grate resting on the grate support and having side edges, inclined fire bricks arranged near opposite sides of the shell and within the shell and extending above the grate support and grate and having lower edges resting on the grate support and being captively engaged by the side edges of the grate, a pair of internal side protectors for the boiler above the fire bricks and within the shell and having lower edges which lap top edges of the fire bricks to retain them in place, camming hanger means for the side protectors on the shell and side protectors and supporting the side protectors in the shell and causing their lower edges lapping the fire bricks to maintain retaining pressure on the fire bricks, and top flanges on the side protectors forming supporting guideways for a front-to-back sliding boiler module engaged within said rear opening of said shell.
Dependencies are inferred from the claim text.