Crosstie boring apparatus
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United States of America Patent
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-
Mar 17, 1987
Grant Date -
N/A
app pub date -
Dec 24, 1985
filing date -
Dec 24, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A boring machine for preboring holes in railway ties on which a powered conveyor is supported for movement between input and discharge ends through a boring station between the input and discharge ends to extend transversely of the conveyor path. At the boring station transversely extending in side reference criteria are established in relation to which devices at the boring station position end lock each tie with its centerline and one end in a fixed relationship to the boring station reference criteria. Multi-spindle boring heads below the conveyor arranged in a predetermined relationship to the boring head transversely extending in side reference criteria are supported for vertical movement through a fixed distance with respect to the underside of the tie that bore holes in the tie underside in a fixed relationship relative to the tie centerline and one end. A marking device identifies the referencing end of the tie and a device adjacent the discharge end flips the ties placing the side containing the bored holes upwardly.
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