Definition
A forge or furnace for the manufacture of iron is a fixed industrial installation used in the smelting, refining, or working of iron ore or pig iron into a usable metal product. As a legal term, it appears primarily in the context of statutory construction, property law, and riparian or water rights disputes, where courts were called upon to determine whether a particular structure or enterprise qualified as such a facility — typically to settle questions of mill privileges, water use entitlements, legislative grants, or tax classification.
The phrase functions less as a freestanding legal concept and more as a term of art embedded within specific statutory or grant language. Its legal significance lies entirely in whether a given installation meets the definitional threshold established by the governing instrument or court.
Why It Matters in Research
This term is almost exclusively encountered in nineteenth-century American property and water law, particularly in states where industrial mill acts or charter grants conferred special legal privileges on iron-working establishments. The key research trap is treating the phrase as self-defining: courts in this period actively disputed what physical structures and processes qualified, and the outcome could determine water diversion rights, liability under mill acts, or the scope of a legislative franchise.
The Rapalje & Lawrence citation — 1 Stockt. (N.J.) 289, 296 — points to a New Jersey equity decision from Stockton's Chancery Reports, which represents the primary (and apparently singular) judicial effort to define the phrase with precision. Researchers working in New Jersey mill or riparian law should treat this as a foundational reference. The decision's reasoning may not have been widely adopted in other jurisdictions, so extrapolation requires caution.
In corpus research, this term will appear most often in chancery and equity records, legislative grants, early industrial property litigation, and annotated statutes from manufacturing states such as New Jersey, Pennsylvania, and New York. It is unlikely to appear in modern sources in this exact form; contemporary equivalents would be captured under zoning, environmental permitting, or industrial property classifications.
Historical Dictionary Support
Rapalje and Lawrence treat this phrase as a defined term, directing readers to 1 Stockt. (N.J.) 289, 296 — a New Jersey Chancery decision — as the authority for its meaning. The entry is terse, functioning as a pointer rather than an exposition, which was characteristic of the Rapalje & Lawrence dictionary's treatment of terms whose definition had been resolved by a single authoritative case rather than developed across a body of doctrine.
No other historical legal dictionaries in the standard shelf — Bouvier, Black, Burrill, or Jacob — appear to carry a dedicated entry for this phrase, which suggests it was regarded as a term of local statutory or grant law rather than a concept of general jurisprudence. This is consistent with the pattern of nineteenth-century mill acts, which generated highly jurisdiction-specific vocabulary that rarely migrated into national legal lexicons.
The incompleteness of the Rapalje & Lawrence entry (the heading itself appears truncated as "ING OF IRON" in surviving sources, suggesting "FOR THE MANUFACTUR-ING OF IRON") is a bibliographic artifact researchers should note. The full phrase is "forge or furnace for the manufacturing of iron," and the line break in the original print edition accounts for the apparent truncation.
Jurisdictional Note
The only historical judicial definition of this phrase traces to New Jersey Chancery. Its application in other jurisdictions would depend on whether analogous mill acts or franchise grants used identical or similar language. Researchers outside New Jersey should treat any cross-jurisdictional reliance with caution and look for the specific statutory or grant language at issue in their jurisdiction.