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library of congress

1852

19th century

lot 12332

drawing

drawings

general

office

farm security administration

coil

public
18 media by topic ∙ page 1 of 1
Support for coil of House of Representatives

Support for coil of House of Representatives

U.S. Capitol (drawing). This record contains unverified data from caption card.

Science and research. Mineral prospecting. Electrical prospecting for metallic minerals may be carried on by using the dual coil radiometer to measure the electro-magnetic field of the earth, as it may be influenced by the presence of an ore body. Students training for war jobs in the minerals industry, or for service with the armed forces, are shown hunting for ore. A student at the left operates the field generator. The coils about the middles of the two others are made up of many strands of copper wire which act as transformers. The student second from right watches the level on his stationary coil to measure the electro-magnetic field. After completion of training, many students will be given commissions in naval ordnance, where they will use electronics for airplane detection. Colorado School of Mines, Golden, Colorado

Science and research. Mineral prospecting. Electrical prospecting for ...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

Coil for U.S. General Post Office, top view

Coil for U.S. General Post Office, top view

Drawing. This record contains unverified data from caption card. Public domain scan of 19th century architectural drawing, free to use, no copyright restrictions image - Picryl description

Coil winding machines, Westinghouse works /

Coil winding machines, Westinghouse works /

Numerous women stand in rows at winding machines, taking material from large spools behind them. A male supervisor walks down the aisle, checking the work of the women.

Coil for U.S. Gen'l Post Office

Coil for U.S. Gen'l Post Office

Drawing. This record contains unverified data from caption card. Public domain photograph of French architecture design drawing, building plan, Paris, France, free to use, no copyright restrictions image - Pic... More

Coil winding section E, Westinghouse works /

Coil winding section E, Westinghouse works /

Rows of women are shown at tables with winding machines. They wind using material from spools behind them, apparently putting the finished products on the table in front of them. Various supervisory staff, male... More

Miscellaneous. Boy at work on coil.

Miscellaneous. Boy at work on coil.

Picryl description: Public domain image of boy workers, child labor, working children, economic conditions, free to use, no copyright restrictions.

The driver's whip unfolds its torturing coil. She only sulks go lash her to her toil

The driver's whip unfolds its torturing coil. She only sulks go lash h...

This record contains unverified data from PGA shelflist card. Associated name on shelflist card: Driver's whip.

Coil for U.S. General Post Office, side view and front view

Coil for U.S. General Post Office, side view and front view

Drawing. This record contains unverified data from caption card.

Outdoor tuning coil - Radio Corp. of Am.

Outdoor tuning coil - Radio Corp. of Am.

Public domain photograph of historic building, monument, free to use, no copyright restrictions image - Picryl description

Coil for U.S. Gen'l Post Office

Coil for U.S. Gen'l Post Office

U.S. Capitol (drawing). This record contains unverified data from caption card.

How to add years to the life of your electric cords: remove them gently but firmly from wall sockets. Don't pull or tug. When not in use, coil cord loosely around a hook

How to add years to the life of your electric cords: remove them gentl...

Public domain photograph related to electrical equipment, industrial development, free to use, no copyright restrictions image - Picryl description

Transformer manufacture. Veteran coil winders of a great electrical plant check stacks of finished coils, the kind that are found in small distribution transformers on light poles throughout the country. Westinghouse, Sharon, Pennsylvania

Transformer manufacture. Veteran coil winders of a great electrical pl...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Coil for House of Representatives

Coil for House of Representatives

U.S. Capitol (drawing). This record contains unverified data from caption card.

Floor for room over coil - Public domain architectural plan drawing

Floor for room over coil - Public domain architectural plan drawing

U.S. Capitol (drawing). This record contains unverified data from caption card.

Door for coil chamber, committee rooms

Door for coil chamber, committee rooms

U.S. Capitol (drawing). This record contains unverified data from caption card.

Science and research. Mineral prospecting. A ground comparator will reveal the presence of an ore body under the surface of the earth by measuring the total intensity and the plane of polarization of the secondary electro-magnetic field set up by the ore body. These students are using an adjustable coil of copper wire which acts as an electrical transformer, and may be tilted to determine the minimum and maximum intensity of the field. They are conducting an experiment in electronics, taught in the department of geophysics at a famous mining engineering school. They will apply the knowledge they are acquiring to airplane detection and anti-submarine warfare. Colorado School of Mines, Golden, Colorado

Science and research. Mineral prospecting. A ground comparator will re...

Public domain photograph related to electrical equipment, industrial development, free to use, no copyright restrictions image - Picryl description

Transformer manufacture. Men with nimble fingers make good coil winders. These two employees of a large Eastern electrical company are producing transformers essential to war industries. Westinghouse, Sharon, Pennsylvania

Transformer manufacture. Men with nimble fingers make good coil winder...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description