Patent Specimen? - Manufacture of Iron

Maker and role
George Mullins, Patentee
Production date
Sep 27 1887
See full details

Object detail

1 1/2 x 1 1/2 x 7/16" (3.8 x 3.8 x 1.1cm)
5 x 3 1/2" (12.7 x 8.9cm)
Mullins claims as his invention "the process of purifying and improving iron by the introduction to the melted mass of iron, at the proper heat, of pulverized silica, which consists in adding silica when the iron is at a suitable white heat, subsequently puddling the charge until blue and green flames are emitted, then finally working the metal in the usual manner..." (Patent Number 370,401)
Object number
Currently on display?


My shortlist

Object type

Explore other objects by color

Public comments

Be the first to comment on this object record.

Google reCaptchaThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.