Evaporating Salt Device Patent Model

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Object Details

patentee

Howarth, John

inventor

Howarth, John

Description

This patent model accompanied John Howarth’s patent application that received patent number 117,290 on July 25, The patent describes a process for extracting sulphate of lime (gypsum) from salt brine (concentrated sea water) by evaporating the brine and then superheating it.

Location

Currently not on view

Date made

1871

patent date

1871-07-25

ID Number

1999.0086.01

catalog number

1999.0086.01

accession number

1999.0086

patent number

117,290

Object Name

patent model, evaporating salt device

Object Type

Patent Model

Measurements

overall: 3 1/2 in x 7 in x 12 in; 8.89 cm x 17.78 cm x 30.48 cm

Associated Place

United States: Massachusetts, Essex

associated place

United States: Massachusetts, Salem

See more items in

Work and Industry: Maritime

Engineering, Building, and Architecture

America on the Move

Data Source

National Museum of American History

Subject

Patent Models

Metadata Usage

CC0

Link to Original Record

https://n2t.net/ark:/65665/ng49ca746ab-f63e-704b-e053-15f76fa0b4fa

Record ID

nmah_1316604