B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/81
B23P 11/02 (2006.01) B25B 27/28 (2006.01)
Patent
CA 1043993
ABSTRACT OF THE DISCLOSURE A mandrel for use in assembling bushings which comprises (1) an outer sleeve; (2) an inner sleeve; (3) an annular elastomeric insert to be radially compressed between said sleeves; and means for mounting said insert in compression within said outer sleeve, wherein the mandrel provides the means for expanding the interior of said insert when mounted within said outer sleeve and for mounting said inner sleeve within said insert as expanded to place said insert in radial compression between said sleeves and wherein the mandrel precedes said inner sleeve through said insert and expands the interior of said insert at a predetermined rate of expansion to mount said inner sleeve within said insert when so expanded; and wherein said mandrel defines a preselected radial profile along its length t1 extending from its point of minimum working diameter at its leading end, equal or slightly less than the inner diameter of the compressed insert, to its point of maximum working diameter at its trailing end, equal or slightly more than the outer diameter of the inner sleeve, which causes said mandrel to radially expand said interior of said insert along said mandrel length as said mandrel is forced through said insert.
164098
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