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A new solution for an old problem…. Does your mine have this problem? If it does, you need to get the Ker <>< Thob implemented into your roof control plan!. Ker <>< Thobs can be put directly over beltlines. Ker <>< Thob Application & Installation Process.

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A new solution for an old problem…

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A new solution for an old problem l.jpg

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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Ker<><Thob’s Users List:

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)


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Ker<><Thob’s Users List Continued:

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)


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Thank you for your

interest in

Ker<><Thobs!


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