Lost mold for the casting of a mouthpiece or nozzle for a chimne

Details Lost mold for the casting of a mouthpiece or nozzle for a chimne Lost mold for the casting of a mouthpiece or nozzle for a chimne

1977-05-16

1979-03-06

Wayner, William E.

52244, F23L 1702

Patent

active

041424573

ABSTRACT:
A lost mold for the casting of the ferrule, nozzle or mouthpiece of a chimney or smokestack consists of a light-weight relatively thin material which can burn off, wear or degrade in use and which is stabilized in a casting chest or box with sand for the casting of the concrete body adapted to form the ferrule or mouthpiece. The lost mold permits the casting of a draw-promoting device for a chimney by masons at the site of erection thereof and hence eliminates the need to transport massive bodies long distances. It also eliminates difficulties encountered with the shaping of the mouth of a smokestack or chimney by masons or chimney specialists.

REFERENCES:
patent: 405667 (1889-06-01), Hinkley
patent: 2135342 (1938-11-01), Jackson
patent: 2646743 (1953-07-01), Van Alstyne
patent: 2660105 (1953-11-01), Sabin, Jr.
patent: 2680402 (1954-06-01), Adelt
patent: 3183822 (1965-05-01), Stone et al.
patent: 3262668 (1966-07-01), Luker
patent: 3399858 (1968-09-01), Luker
patent: 3610135 (1971-10-01), Sheridan

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