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Production of butylene glycol. Dr. George E. Ward inspects two types of pure butylene glycol made from corn at the Northern Regional Research Laboratory of the U.S. Department of Agriculture at Peoria, Illinois. Dr. Ward and his associates developed a fermentation process for converting corn and other grains into butylene glycol that has given good results on a semi-commercial scale. This chemical can be used in making anti-freeze for automobiles and in the production of solvents for various manufacturing processes. Department scientists have succeeded on a laboratory scale in turning butylene glycol into butadiene, which can be used in making synthetic rubber. Now they are trying to do it on a semi-commercial scale

Production of butylene glycol. Dr. George E. Ward inspects two types o...

Actual size of negative is C (approximately 4 x 5 inches). Caption card lists some of the printing history of image. Title and other information from caption card. Transfer; United States. Office of War Informa... More

Synthetic rubber (Ameripol). After the milling process, where crumbs of synthetic rubber are pressed into sheets, then trimmed to size and cooled, the sheets are placed in the charging and discharging vacuum dryers. As each is removed, another replaces it. Goodrich

Synthetic rubber (Ameripol). After the milling process, where crumbs o...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Conversion. Pianos to airplane motors. Prior to the conversion of a Chicago piano factory to the manufacture of parts for trainer planes, Lorraine Avezzano operated this boring machine to prepare piano keyboards for further assembly. Today she uses the same machine to process connecting rods for trainer-plane motors. More than 1,000 of these rods pass through her hands each day. Gulbransen Company

Conversion. Pianos to airplane motors. Prior to the conversion of a Ch...

Picryl description: Public domain image of a factory worker, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions. show less

Conversion. Rendering of household fats. Valuable fats from waste household greases are recovered by a pressure process in an expeller at a rendering plant. These fats drain into a settling tank and are later drawn off into tallow storage tanks, from where they are conveyed to a soap plant for the making of soap and glycerin

Conversion. Rendering of household fats. Valuable fats from waste hous...

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Hamilton Family, sardine works, Eastport. Father earns $15 to $25 a week irregularly during the work season for three months. Said that 20 years ago he made $5 a day as a boy, cutting. The mother is a packer makes $10 a week and upward, during the active season. Another boy, not in the photo, works also. In the front row are George Hamilton, 11 years old, who cuts regularly--made a dollar in three hours the day before; Byron, with a badly cut finger, earns 25 cents a day; little Erna 8 years old works at cartoning. The father is dissatisfied with the irregular income, but cannot see the connection between his early boyhood work and his present stagnation. He is putting his little ones through the same process. Location: Eastport, Maine.

Hamilton Family, sardine works, Eastport. Father earns $15 to $25 a we...

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

A process in the Transilvania presbytery, &c. : Containing: 1st. The charges, depositions and defence in which the defendent is led occasionally to handle the much debated subject of psalmody. 2d. His reasons for declining, any farther connections with the body to which he belonged. 3d. His present plan of proceeding, with the pastoral charge. 4th. His belief, and that of his people, concerning the articles of faith, contended between the Reformed associate sinod; and the Sinod of New York and Philadelphia. 5th. An appendix on a late performance of the Rev. John Black of Marsh Creek, Pennsylvania

A process in the Transilvania presbytery, &c. : Containing: 1st. The c...

Picryl description: Public domain document page scan, free to use, no copyright restrictions image.

A process in the Transilvania presbytery, &c. : Containing: 1st. The charges, depositions and defence in which the defendent is led occasionally to handle the much debated subject of psalmody. 2d. His reasons for declining, any farther connections with the body to which he belonged. 3d. His present plan of proceeding, with the pastoral charge. 4th. His belief, and that of his people, concerning the articles of faith, contended between the Reformed associate sinod; and the Sinod of New York and Philadelphia. 5th. An appendix on a late performance of the Rev. John Black of Marsh Creek, Pennsylvania

A process in the Transilvania presbytery, &c. : Containing: 1st. The c...

Picryl description: Public domain document page scan, free to use, no copyright restrictions image.

A process in the Transilvania presbytery, &c. : Containing: 1st. The charges, depositions and defence in which the defendent is led occasionally to handle the much debated subject of psalmody. 2d. His reasons for declining, any farther connections with the body to which he belonged. 3d. His present plan of proceeding, with the pastoral charge. 4th. His belief, and that of his people, concerning the articles of faith, contended between the Reformed associate sinod; and the Sinod of New York and Philadelphia. 5th. An appendix on a late performance of the Rev. John Black of Marsh Creek, Pennsylvania

A process in the Transilvania presbytery, &c. : Containing: 1st. The c...

Picryl description: Public domain document page scan, free to use, no copyright restrictions image.

A process in the Transilvania presbytery, &c. : Containing: 1st. The charges, depositions and defence in which the defendent is led occasionally to handle the much debated subject of psalmody. 2d. His reasons for declining, any farther connections with the body to which he belonged. 3d. His present plan of proceeding, with the pastoral charge. 4th. His belief, and that of his people, concerning the articles of faith, contended between the Reformed associate sinod; and the Sinod of New York and Philadelphia. 5th. An appendix on a late performance of the Rev. John Black of Marsh Creek, Pennsylvania

A process in the Transilvania presbytery, &c. : Containing: 1st. The c...

Picryl description: Public domain document page scan, free to use, no copyright restrictions image.

A process in the Transilvania presbytery, &c. : Containing: 1st. The charges, depositions and defence in which the defendent is led occasionally to handle the much debated subject of psalmody. 2d. His reasons for declining, any farther connections with the body to which he belonged. 3d. His present plan of proceeding, with the pastoral charge. 4th. His belief, and that of his people, concerning the articles of faith, contended between the Reformed associate sinod; and the Sinod of New York and Philadelphia. 5th. An appendix on a late performance of the Rev. John Black of Marsh Creek, Pennsylvania

A process in the Transilvania presbytery, &c. : Containing: 1st. The c...

Picryl description: Public domain document page scan, free to use, no copyright restrictions image.

A process in the Transilvania presbytery, &c. : Containing: 1st. The charges, depositions and defence in which the defendent is led occasionally to handle the much debated subject of psalmody. 2d. His reasons for declining, any farther connections with the body to which he belonged. 3d. His present plan of proceeding, with the pastoral charge. 4th. His belief, and that of his people, concerning the articles of faith, contended between the Reformed associate sinod; and the Sinod of New York and Philadelphia. 5th. An appendix on a late performance of the Rev. John Black of Marsh Creek, Pennsylvania

A process in the Transilvania presbytery, &c. : Containing: 1st. The c...

Picryl description: Public domain document page scan, free to use, no copyright restrictions image.

Solvay Process Company, Between Willis & Milton Avenues, Solvay, Onondaga County, NY

Solvay Process Company, Between Willis & Milton Avenues, Solvay, Onond...

Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description

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