Appeal No. 2003-1254 Page 7
Application No. 09/284,793
which means that the total width of the rulers 7, 9 and the knife blade is increased until
they are fixed in the slot 6. The resilient means may consist of helical compression
springs 16, which, down below, engage the retaining ruler 7 and, on top, engage the
tightening ruler 9.
In order to efficiently wedge up Strömberg's knife blades 2 in the slot 6, the
wedge device K comprises and/or cooperates with at least one spring means 17
disposed beside the wedge device in the slot 6 and compressible, upon insertion of a
knife blade 2 into the slot 6 for wedging up thereof, to a dimension which lies within
such an interval (e.g. 0.5 mm) that it permits insertion of those knife blades 2 into the
slot 6, the dimensions of which differ from the certain, defined dimension and lie within
such a certain, defined range of tolerance including the defined dimension. The spring
means 17 has, when compressed to a dimension within the interval, such a spring force
that knife blades 2 having dimensions within the range of tolerance are retained in the
slot 6. The spring means 17 is preferably mounted in the slot 6 such that it in
compressed condition occupies the width of the slot 6 between the side walls 8a, 8b
thereof together with the wedge device K, knife blade 2 and eventually further members
disposed beside each other in the slot 6 when the knife blade 2 is wedged up therein.
The spring means 17 preferably consists of such resilient material which is
compressible, and which essentially maintains the resilient properties obtained by the
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