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Vertical load suspension and adjusting mechanism
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Tensiometer
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Automatic cathead
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Pull line drum and mounting
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Spinner hoist cat-head control
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Clutch actuating device
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Friction control for pull lines
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Pipe and casing spinning apparatus
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Knee rest for vehicle seats
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Rod line hook-off and anchor
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Pump rod stuffing box mounting
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Automatic cathead jerk-line control
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Casing spinning apparatus for drilling rigs
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Friction control for casing spinning apparatus
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Road tamping and maintenance machine
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Combination make-up cathead and friction hoist
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Tank cleaner
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