US792891A - Mining-tool. - Google Patents

Description

PATENTED JUNE 20, 1905.

W. J. FURBEE.

MINING TOOL.

APPLICATION FILED JAN.19,f19o5.

ATTOR V8 UNITED STATES Patented June 20, 1905.

PATENT OEEICE.

MlNlNG-To'ol..

SPECIFICATION forming part of Letters Patent No. 792,891, dated June 20, 1905.

Application filed January 19, 1905. Serial No. 241,762-

To a/ZZ whom, it Imag concern:

Be it known that I, WILLIAM JESSE FURBEE, a citizen of the United States, and a resident of Watson, in the county of Marion and State of West Virginia, have invented a new andImproved Mining-Tool, of which the following is a full, clear, and exact description.

This invention is an improved tool for miners use, and has for its object to provide in one implement a pick, scraper, and tamping-iron, all arranged for convenient and effective use separately.

The invention consists in the novel con struction, combination, and arrangement of parts, as is hereinafter described, and defined in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures. y

Figure l is a perspective view of the improved composite tool. Fig. 2 is a longitudinal sectional view of one end portion of the tool. Fig. 3 is a longitudinal sectional view of the remaining portion thereof, and Fig. 4 is an end view of the improved implement seen in direction of the arrow in Fig. 3.

Where it requires the use of explosives in mining coal, a miner must use a pick to divide large lumps and dislodge such masses as are not completely loosened by a blast. He also needs a scraper for clearing out the line chips from a drilled hole, so as to permit the free insertion of a cartridge of the explosive and a tamping-bar for settling wadding upon the cartridge to render the explosive effective. Heretofore these implements have been separate and, with a cartridge-inserting stick, as well as an ax and a shovel, form a miners kit, which is a bulky assemblage of tools to be taken care of and have ready for service as needed.

The novel composite tool of my invention provides a coal-pick, a scraper,and a tamping-iron in a compact and very convenient form.

The pick-head is in the form of a conical block of metal, the point 5 of which is suitably shaped for effective service and is preferably formed of hardened steel; The fiaring body 5 of the pick-head is at the largest end of a diameter which will permit its free insertion into a hole that has been drilled in a coal vein, and in said end a deep cup-like cavity a is formed, the defining circular edge thereof being sharpened to producea scraper b. Centrally in the bottom of the cup a a tapped perforation cis formed longitudinally of a proper depth, and in said perforation is screwed the threaded end 6 of a shank 6, as is clearly shown in Fig. 2. A

The shank 6 is made of any suitable metal, and at the opposite end is formed a threaded portion 6b, which is screwed into the interiorly threaded end of a cylindrical tubular handle-bar 7, as shown at d in Fig. 2. A sufficient length is given to the handle-bar 7 for the convenient handling and use of the composite tool, and at the opposite end thereof it is interiorly threaded, as shown at c in Fig. 3.

A tamping-block 8 is provided, which is formed of metal cylindroconiform in contour, the smaller end of the coniform portion merging into a threaded stem 8, that is screwed into the internal thread e.

A groove g is formed in the side of the tamping-block 8 of a suflicient depth to permit the free escape of air through it when the tamping-block is in use.

When the drill has been withdrawn, the line chips or cuttings that remain in the hole may be quickly removed therefrom by the insertion of the pick-head 5, which may be forced down so as to cause the chips or iine dust to pass upward and enter the cup c, whereupon a removal of the pick-head from the hole will lift a considerable quantity of the chips and discharge them.

Obviously a renewal of the operation just described will clean out the drilled hole and permit 4the insertion of an explosive cartridge therein.

The cup a is also available for the removal of water that may enter a drilled hole by a few insertions of the pick-head into the per-l IOC therein, the latter may be tamped with the block or head 8 by'its reciprocation in the hole above the Wadding.

The piek-head from its tapered form is Well adapted to split large lumps of coal into smaller ones to enable the loading of such lumps into cars for removal from the mine, and considerable leverage is afforded by the handle-bar 7 for the moving or' masses of coal that have been dislodged by an explosion.

The piolr-head may also be used for removing slate from coal lumps or from the roof of a gallery in the mine, and, if desired, the head lmay be utilized as ameasure of known length to space apart pillars left standing in the mine for support of the roof.

Having thusdescribed my invention, Ielaim as new and desire to secure by Letters Patentl. A composite tool, embodying a conical piek-head having a cup in the larger end thereof, a handle-bar projected fromth'e'bottom of the cup, and a tamping-block mounted upon the other end of the handle-bar.

2. A composite tool, vembodying a conical pick-head of metal having a hardened point, a cup in the large end of the head, ashank removably secured in the bottom of the cup, a handle bar removably mounted upon the shank, and atamping-block mounted upon the other end of the handle-bar.

In testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses.

WILLIAM J SSE FURBEE.

Witnesses:

P. M. HOGE, M. POWELL.

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