Machine for binding reinforcement bars
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United States of America Patent
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Sep 30, 2014
Grant Date -
May 10, 2012
app pub date -
May 11, 2010
filing date -
May 11, 2009
priority date (Note) -
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Abstract
A machine for forming a two-stage wire tie around a pair of bars to bind the bars together. The machine comprises an arrangement for passing the wire in a loop around the bars and a twisting head for twisting the ends of the loop together. The twisting head comprises an arrangement for gripping the ends of the wire and a tie plate through which the ends of the wire pass, and the head is resiliently mounted relative to the bars so as to allow the tie plate to move through a predetermined amount of travel towards the bars, to thereby define the length of a first stage of the tie. The machine is adapted thereafter to release the ends of the wire and continue twisting these to form a second stage of the tie.
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