Appeal No. 1998-1650 Page 8
Application No. 08/715,749
The formation of the step 4 and the securement to the
block 3 to the bushing 2 is depicted in Figures 1 and 2. The
bushing 2 is formed at its lower end with a cylindrical
opening 9 having an upper circumferential edge 10 beveled
outwardly toward an inner cylindrical portion 11. The
opposite or outer edge 12 is similarly countersunk in an
outward bevel. As seen in Figure 2, the bearing block 3 is
originally provided as a cylindrical slug having an axial
length greater than the axial length of the cylindrical
opening 9. The cylindrical slug or block 3 is inserted into
the opening 9 so that relative to one another the outer flat
end 13 of the block 3 extends below the plane 14 of the lower
end of the bushing 2, while the inner flat end 15 of the block
3 extends into the cylindrical section 11. Thereafter, the
bushing 2 and inserted block 3 are set on a conforming
supporting surface, such as an anvil, and a stamping
instrument having a die surface conforming to the conical step
4 is placed on the flat inner end 15. Pressure is applied on
the stamping instrument by a conventional hammer, press or the
like to cause
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Last modified: November 3, 2007