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The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Development of the Claw Hammer Scaling Tool.

PB86169471

Publication Date	1983
Personal Author	Eklund, J. D.
Page Count	38
Abstract	To improve safety, economy, and efficiency of scaling in underground metal or nonmetal mines, research was conducted to develop a combination prying-hammering tool for machine scaling. In the prototype claw-hammer assembly, a hydraulic impact hammer was used to drive the claw mechanism into the rock. After a bite was established, the loose rock could be removed using a hydraulically actuated prying motion. This tool combines the advantages of both impact and ripper type scaling tools and provides versatility for use in most rock types.
Keywords	Mining equipment Hydraulic mining Hammers Scaling
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 94F - Tooling, Machinery, & Tools
Corporate Authors	Battelle Pacific Northwest Labs., Richland, WA.; Bureau of Mines, Washington, DC.
Supplemental Notes	Sponsored by Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. 23 Apr 82-29 Dec 83.
NTIS Issue Number	198612
Contract Number	H0202025

Development of the Claw Hammer Scaling Tool.

Development of the Claw Hammer Scaling Tool.
PB86169471

Publication Date	1983
Personal Author	Eklund, J. D.
Page Count	38
Abstract	To improve safety, economy, and efficiency of scaling in underground metal or nonmetal mines, research was conducted to develop a combination prying-hammering tool for machine scaling. In the prototype claw-hammer assembly, a hydraulic impact hammer was used to drive the claw mechanism into the rock. After a bite was established, the loose rock could be removed using a hydraulically actuated prying motion. This tool combines the advantages of both impact and ripper type scaling tools and provides versatility for use in most rock types.
Keywords	Mining equipment Hydraulic mining Hammers Scaling
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 94F - Tooling, Machinery, & Tools
Corporate Authors	Battelle Pacific Northwest Labs., Richland, WA.; Bureau of Mines, Washington, DC.
Supplemental Notes	Sponsored by Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. 23 Apr 82-29 Dec 83.
NTIS Issue Number	198612
Contract Number	H0202025