TIRE BUILDING DRUM
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Abstract
In this Rind-type drum for making tires described in my co-pending application Ser. No. 617,658 now abandoned in favor of applicant'"'"''"'"'s continuation Ser. No. 28,281, filed Apr. 22, 1970, entitled "Tire Building Machine," the bead clamping means consist for each flange supporting same of an annular set of pivoted arms each formed with an outer bent radially away from the drum axis, this end carrying a pivoted finger formed with a forked outer end and radially urged away from the drum axis by a spring reacting against said arm, and a link connecting said arm to the moveable end of a double-acting cylinder mounted in said flange at a point nearer to the drum axis than the fulcrum of said arm, the movement of the operative end of said cylinder towards the transverse plane of symmetry of the drum causing the arm to move away from the drum axis so that the outer end of said arm, by co-acting with said pivoted finger, engages the bead of the tire carcass somewhat like a pair of tongs.
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