Open original Digital object

Identity elements

Reference code

Name and location of repository

Level of description





  • 1949-05-16 (Creation)


Name of creator

Content and structure elements

Scope and content

Crust breaking machine at Permanente, Bill Gorman. A specialized machine has been manufactured to perform the work that had previously been done manually. A crust would form at the openings to the reduction pots where alumina was melted into raw pig aluminum. The plant had two potlines containing 240 reduction pots producing 41 million pounds of alumium per year. (Permanente Metals Corp. 1947-1948 Annual Report)

Permanente Metals Corp. (Tacoma); Aluminum industry--Tacoma--1940-1950; Machinery;

System of arrangement

Conditions of access and use elements

Conditions governing access

Technical access

Conditions governing reproduction

Languages of the material

Scripts of the material

Language and script notes

Finding aids

Acquisition and appraisal elements

Custodial history

Immediate source of acquisition

Appraisal, destruction and scheduling information


Existence and location of originals

Existence and location of copies

Related archival materials

Related descriptions

Notes element

Specialized notes

Alternative identifier(s)

Rules or conventions

Sources used

Access points

Subject access points

Place access points

Name access points

Genre access points

Digital object metadata

Digital object (Master) rights area

Digital object (Reference) rights area

Digital object (Thumbnail) rights area

Accession area

Related people and organizations

Related genres

Related places