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US 4,218,901 AGranted
System for working leather and like flexible sheet material
OwnerJoseph F. Hackinginventor
Life of this patent
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OwnerJoseph F. Hackinginventor
Estimating the term…
A system, including apparatus and method for cutting leather and like flexible sheet material into straps and/or strips and for sequentially sizing and shaping the straps and/or strips uniformly, the apparatus comprising a cylindrical bar with shaping and sizing circumferential grooves in the surface thereof, a pivotable biased holder carrying a cutting edge disposed at a narrow acute angle across one or both of the mentioned grooves in the cylindrical bar so that undesired portions of the straps or strips are cut off to size and shape the strap or strip as it is forceably drawn between the groove and the mentioned cutting edge. The cylindrical bar also comprises a slot and one or more spacers to hold one or more blades parallel to each other and perpendicular to the body so that a sheet of rawhide, leather or like flexible material may be selectively and simultaneously cut into uniform strips by drawing the sheet through the parallel blades. The shaping and sizing grooves may each have variable depths and shapes, depending upon the circumferential or rotational orientation of the cylindrical bar in respect to the first mentioned blade. Thus, strips of various thicknesses, sizes and shapes may be obtained. The apparatus at a given setting produces uniform straps and strips.
A multi-purpose tool for sizing rawhide, leather and like flexible sheet material comprising:
A multi-purpose tool for sizing rawhide, leather and like flexible sheet material comprising:
A multi-purpose tool for sizing rawhide, leather and like flexible sheet material comprising:
A multi-purpose tool for sizing rawhide, leather and like flexible sheet material comprising:
A multi-purpose tool for sizing rawhide, leather and like flexible sheet material comprising:
A multi-purpose tool for sizing rawhide, leather and like flexible sheet material comprising:
A multi-purpose tool for cutting segments from rawhide, leather and like sheet material comprising:
A method of sizing an elongated segment of rawhide leather and the like comprising the steps of releasably mounting in a stationary position a multi-purpose rawhide leather cutting tool at an exposed site, pulling the segment along a recess in a first member the depth of the recess varying from point to point, the recess comprising only a part of the entire tool against an angularly disposed cutting edge of a second member of the tool transversely bridging the recess following selectively adjusting the bridging site of the cutting edge to correlate the thickness of the segment desired with the recess depth at the bridging site without altering the mounting arrangement at the exposed site and without manually grasping any part of the tool and causing the cutting force thereby generated to be transferred to the exposed tool mounting site thereby slicing from the segment material in excess of the depth of the recess at the bridging site.
A method of sizing an elongated segment of rawhide leather and the like comprising the steps of releasably mounting in a stationary position a multi-purpose rawhide leather cutting tool at an exposed site, pulling a substantial width of leather through a width cutting site of the tool having at least one exposed width cutting blade and causing the cutting force thereby generated to be transferred to the exposed tool mounting site thereby shearing one or more segments therefrom having one or more desired widths and pulling at least one leather segment through a thickness cutting site of the tool having at least one exposed thickness cutting blade and causing the cutting force thereby generated to be transferred to the exposed tool mounting site thereby shearing undesired thickness from the leather segment.
A method of shaping an elongated segment of rawhide leather and the like comprising the steps of releasably mounting in a stationary position a multi-purpose rawhide leather cutting tool at an exposed site, pulling the segment along a trough-shaped recess having rounded corners against an angularly disposed cutting edge transversely bridging the recess without manually grasping any part of the tool and causing the cutting force thereby generated to be transferred to the exposed tool mounting site thereby slicing unwanted material from the side edges of the segment.
A method of shaping an elongated segment of rawhide leather and the like comprising the steps of releasably mounting in a stationary position a multi-purpose rawhide leather cutting tool at an exposed site, pulling the segment along a trough-shaped recess the depth of which varies from point to point against an angularly disposed cutting edge transversely bridging the recess after selectively adjusting the bridging site of the cutting edge to correlate the amount of unwanted side edge material with the recess depth at the bridging site without manually grasping any part of the tool and causing the cutting force thereby generated to be transferred to the exposed tool mounting site thereby slicing unwanted material from the side edges of the segment.
Dependencies are inferred from the claim text.