A new solution for an old problem…
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Transcript of A new solution for an old problem…
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A new solution
for an old problem…
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Does your mine have
this problem? If it
does, you need to get
the Ker<><Thob
implemented into
your roof control
plan!
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Ker<><Thobs can be put directly over beltlines.
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Ker<><Thob
Application
&
Installation Process
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Any steel pipe, stronger than the roof bolt can be used with the Ker<><Thob, as long as it’s inside diameter is between (2.125 to 2.6 inches for our 2 1/8 inch unit) or (2.25 to 3 inches for our 2 1/4 inch unit).
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One miner can carry a temporary roof jack, a shoulder bag containing a few Ker<><Thobs, two channel locks, and a selection of pipe cut to different lengths. This is all that is needed to allow one man to repair several loosened roof bolt plates.
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Make the area
safe before
proceeding to
install the
Ker<><Thob.
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Install temporary supports! Do not work under unsupported roof.
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Raise the loosened
roof plate up to
the roof and
measure the
distance from the
plate to the flange
of the bolt head.
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Subtract two inches from the measurement
to get the correct length of pipe needed
to be used with the Ker<><Thob. (5”– 2” = 3”) pipe length needed
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Select the
precut pipe
from the
shoulder bag.
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Set the split halves of the Ker<><Thob onto the flange of the bolt head.
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Make sure that the notched ends of the split halves are resting on the flange of the bolt head!
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Slide the spacer
pipe over the
bolt head and
the split halves.
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Start the nut up over the bolt head and thread onto the split halves.
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Push the spacer pipe against the split halves to aid in the threading of the nut onto the unit.
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Grasp the notched end of the split halves while tightening the nut.
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Two Channellock Pliers (one 420 and one 460), and a tape measure are the only tools needed for the installation of a Ker<><Thob!
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The Ker<><Thob was tested by MSHA on 10/3/96 and 9/3/97. Both times it was subjected up to 60,800 pounds of pressure with no failure.
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Phones: 618-599-7447 or 618-375-7503
Fax: 618-378-2002
Mailing Address: Ker<><Thob Inc.
P.O. Box 317
Norris City, IL 62869
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CONSOLIDATION COAL CO. (REND LAKE, 2186 NORTH KEYSTONE LANE / NASON, IL. 62886)
DAKOTA MINE (Rt 85 / BOBWHITE, WV. 25028)
EASTERN ASSOCIATED COAL CORP. (HARRIS MINE ,ROUTE 85 / BALD KNOB, WV. 25010-0085)
PINE RIDGE COAL COMPANY (PO BOX 104, STATE RT. 5 / PRENTER, WV. 25181-0104)
TRIAD MINING (RT 1-HC70, LAUREL LAKE ROAD / LENORE, WV 25676)
TRIUNE INC. (2328 I-70 FRONTAGE ROAD / GRAND JUNCTION, CO. 81505)
UNITED CENTRAL SUPPLY (1800 SUPPLY ROAD / CARTERVILLE, IL. 62918)
WABASH MINE HOLDING CO. (7534 N. 900 BLVD. / KEENSBURG, IL. 62852-0144)
ARCH IL, CONAN MINE (PICKNEYVILLE, IL)
BANKS MILLER SUPPLY CO. (14731 HWY 40 W. / TOMAHAWK, KY)
BLACK BEAUTY UNDERGROUND, INC. (AIR QUALITY #1, P.O. BOX 176 / WHEATLAND, IN)
Ker<><Thob’s Users List:
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PEN COAL CORP. (ROUTE 1, McCOMAS ROAD / DUNLOW, WV 25511)
MARFORK COAL CO. (ROUTE 3, MARFORK ROAD / PETTUS, WV 25209)
NATIONAL MINE SUPPLY (451 RAGLAND ROAD / BECKLEY, WV 25801)
PHILLIPI DEVELOPMET CO. (RT. 3, BOX 146 / PHILLIPI, WV 26416)
TALL TIMBER COAL CO. (P.O. BOX 722 / MATEWAN, WV 25678)
TURRIS COAL CO. (P.O. BOX 21 / ELKHART, IL 62634)
WHITE COUNTY COAL CORP. (P.O. BOX 457 / CARMI, IL 62821)
BILL MOORE ASSOCIATES (6246 CAROLYN DR. / MENTOR, OH 44060)
SOLAR SOURCES, MONROE CITY MINE (P.O. BOX 325 / MONROE CITY, IN 47577)
ELK RUN COAL CO., WHITE KNIGHT MINE (P.O. BOX 497 / SYLVESTER, WV 25193)
BOONES RESOURCES, INC (P.O. BOX 1056 / PELHAM, AL 35124)
FREEMAN UNITED (P.O. BOX 347, IL RT. 4 / VIRDEN, IL 62960)
THE AMERICAN COAL CO. (9085 HIGHWAY 34 NORTH / GALATIA, IL 62935)
Ker<><Thob’s Users List Continued:
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Thank you for your
interest in
Ker<><Thobs!