Metal tools and implements – making – Blank or process – Die
Patent
1982-02-22
1984-11-06
Meister, James M.
Metal tools and implements, making
Blank or process
Die
83123, 83451, 83510, 83684, B21D 3720, A24B 700
Patent
active
044805071
ABSTRACT:
A cutting die assembly for cigar wrappers is manufactured by rigidly interconnecting a knife blade unit and a die assembly on a common carrier. The die assembly has an opening of particular shape bounded by a generally planar margin over which tobacco leaf may be draped. The knife unit is formed by shaping knife blade strip into a closed form to fit just inside the shaped margin of the die assembly with the knife edge just above same. The shaped knife blade strip is filled with a filling body interiorally to a height substantially below the cutting edge and is internally rigidified thereby. A suction air chamber is defined by the rigidly interconnected units and is bounded by the common carrier, the die assembly and the outer surface of the knife blade strip. Openings are provided through the margin of the die assembly to the suction air chamber to hold the draped tobacco leaf and stretch it over the knife edge. An expelling plunger is provided within the shaped knife blade strip and suction air passages are formed through the filling body and the plunger to hold tobacco leaf firmly against the cutting edge. The knife blade strip may take the form of plural strips interconnected to form adjacent die cavities.
REFERENCES:
patent: 643767 (1900-02-01), Hartman
patent: 2885913 (1959-05-01), Lescallette
patent: 2993421 (1961-07-01), Phillips
patent: 3166968 (1965-01-01), Krouskop
patent: 3397599 (1968-08-01), Burkhart
patent: 3698028 (1972-10-01), Panter et al.
patent: 4052886 (1977-10-01), Buick
patent: 4096775 (1978-06-01), Thomsen
patent: 4223684 (1980-09-01), Boogers
Meister James M.
P.M.B. Patent Machinebouw B.V.
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