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Cupel Mould Ad 1899 John Taylor & Co Catalogue
3 and 4 in Davis Anemometers
3 in Davis Anemometer Front
3 in Davis Anemometer Back
4 in Davis Anemometer
  Du Pont Tamping Bag.JPG - DU PONT TAMPING BAG - Brown paper tamping bag, 1 1/4 x 6 in., marked with DU PONT in oval, E. I. Du Pont de Nemours & Co. Wilmington, Del.U.S.A. Established 1802, as new condition, from Neil Tysver  [The 1911 Du Pont Blasting Supplies Catalog offered tamping bags in various sizes from 1, 1 1/4, 1 1/2 and 2 in. wide and up to 18 in. long.  As described, they were made of heavy paper as containers for inert blast stemming material such as sand or clay that is placed on top of explosives in a hole drilled in the rock. When the explosives are fired, the stemming contains the expanding gasses, and keeps the force of the explosion in the borehole a few thousandth of a second, until rock begins to break.  The tamping bags were also employed as containers for blasting powder when the miner or blaster wanted to make up the charge in cartridge form to be used in mines where the open work was damp or where boreholes point upward.]  
Dupont Letter Openers Front
Dupont Letter Openers Reverse
Instructions pages 12&13
Eveready Mining Flashlight
Eveready Mining Flashlight Lens

Du Pont Tamping Bag | DU PONT TAMPING BAG - Brown paper tamping bag, 1 1/4 x 6 in., marked with DU PONT in oval, E. I. Du Pont de Nemours & Co. Wilmington, Del. U.S.A. Established 1802, as new condition, from Neil Tysver [The 1911 Du Pont Blasting Supplies Catalog offered tamping bags in various sizes from 1, 1 1/4, 1 1/2 and 2 in. wide and up to 18 in. long. As described, they were made of heavy paper as containers for inert blast stemming material such as sand or clay that is placed on top of explosives in a hole drilled in the rock. When the explosives are fired, the stemming contains the expanding gasses, and keeps the force of the explosion in the borehole a few thousandth of a second, until rock begins to break. The tamping bags were also employed as containers for blasting powder when the miner or blaster wanted to make up the charge in cartridge form to be used in mines where the open work was damp or where boreholes point upward.] Download Original Image
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