Sheet feeder for handling sheets of varying thickness

A sheet feeder for handling articles of differing thickness that ranges between the thickness of a sheet of paper to a thickness of approximately one-quarter inch, comprising:

• a bin means for holding a plurality of articles in a substantially vertical array;
• a conveyor belt means positioned adjacent a lowermost end of said bin means for removing a lowermost article from said bin means and dispensing it from said sheet feeder;
• a separator wheel having a circular configuration positioned in predetermined spaced relation to said conveyor belt means;
• said separator wheel having a diameter of about three inches so that articles ranging in thickness from as thin as a sheet of paper to as thick as about one-quarter inch are staggered when disposed against said shroud member;
• a shroud member mounted adjacent said separator wheel between said separator wheel and said articles;
• said shroud member having a first straight part, a curved part that substantially conforms to a contour of said separator wheel and that has a radius of curvature of about one and one-half inches so that articles ranging in thickness from as thin as a sheet of paper to as thick as about one-quarter inch are staggered when disposed against said shroud member and a second straight part disposed in parallel, predetermined spaced apart relation to said conveyor belt means;
• a slot formed in said second straight section of said shroud member so that articles in said bin area are engaged by said separator wheel;
• articles traveling downwardly in said bin means bearing first against said first straight part of said shroud member, secondly against said curved part of said shroud member, and thirdly against said separator wheel, said separator wheel providing a curvature that is complementary to the curvature provided by said shroud member;
• whereby articles having a thickness ranging from the thickness of a sheet of paper up to approximately one-quarter inch are shingled first by said shroud member and thereafter by said separator wheel and are then dispensed from said sheet feeder.