Manufacturing - Sewing - Textiles - Weaving
Feb. 26 Rock Dusting - This machine, called a trickle duster, emits a cloud of finely-powdered limestone into the passageway which carries air currents away from from the working face of a coal mine in the United States. The limestone mixes with fine coal dust carried way by ventilating currents; a proper portion of the incombustible limestone averts the danger of an explosion from the combustible coal dust
Picture No
13205041
Media ID
46954454
Size
5610px x 4407px
(1.4MB)
Credit
(c) Keystone Pictures USA/ZUMAPRESS.com/Mary Evans
Usage Restrictions
Editorial Use Only - No Property or Model Releases. For any non-editorial use, please contact Mary Evans direct
Source
Keystone Pictures USA
Pick your License
Restrictions Only for United Kingdom
Combustible Currents Duster Dusting Emits Limestone Mixes Passageway Portion Proper Trickle Ventilating
Features In These Collections
> Contributors > KEY
