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US 5,326,411 AGranted
Method for making belting with increased edge modulus
AssigneeMorrison Company, Inc.
InventorDale B. Arnold
Life of this patent
Estimating the term…
Abstract
Belts used in agricultural applications and particularly in round, hay balers have inherent problems created by their predominant process of manufacture. This process often involves cutting a large processed sheet of material into the narrow strips which form the core of the belt. The method disclosed herein produces a belt with a folded edge, a fabric wrapped edge, or an edge that is reinforced with a hard elastomer. These belts have strengthened longitudinal edges and an increased cross-sectional modulus at the edges which alleviates many problems associated with current hay-baler belts.
Claims62
A method for making a multi-ply belt, comprising the steps of:
- coating a fabric sheet with an elastomeric material to form a coated fabric sheet, said coated fabric sheet having a first end portion and a second end portion;
- folding said coated fabric sheet onto itself a predetermined number of times along preselected imaginary lines to form a multi-ply belt having two longitudinal edges and two opposing surfaces, said preselected imaginary lines extending from said first end portion to said second end portion and dividing said coated fabric sheet into longitudinal portions;
- curing said multi-ply belt;
- constructing said first end portion and said second end portion of said coated fabric sheet at a predetermined angle with respect to said imaginary lines, so that said step of folding forms complementary end portions on said multi-ply belt;
- and
- complementarily joining said complementary end portions together to form a multi-ply splice.
3 more elements
A method for making a multi-ply belt, comprising the steps of:
- coating a fabric sheet with an elastomeric material to form a coated fabric sheet, said coated fabric sheet having a first end portion and a second end portion;
- longitudinally folding said coated fabric sheet onto itself a predetermined number of times to form a belt having multiple plies and at least one longitudinal edge;
- coupling said multiple plies together;
- constructing said first end portion and said second end portion of said coated fabric sheet at a predetermined angle with respect to said longitudinal edge, so that said step of longitudinally folding forms complementary end portions on said multi-ply belt;
- and
- complementarily joining said complementary end portions together to form a multi-ply splice.
3 more elements
A method for making a multi-ply belt comprising the steps of:
- coating a fabric sheet with an elastomeric material to form a coated fabric sheet, said coated fabric sheet having a first end portion and a second end portion;
- folding a first longitudinal edge portion of said coated fabric sheet onto a central portion of said coated fabric sheet along a first preselected imaginary line, said first preselected imaginary line extending from said first end portion to said second end portion and dividing said first longitudinal edge portion from said central portion;
- folding a second longitudinal edge portion of said coated fabric sheet onto said central portion of said coated fabric sheet along a second preselected imaginary line to form a three-ply belt having an S-shaped cross-section, said second preselected imaginary line extending from said first end portion to said second end portion and dividing said second longitudinal edge portion from said central portion;
- curing said three-ply belt;
- and
- joining said first and second end portions to one another so as to form an endless belt.
3 more elements
A method for making a multi-ply belt, comprising the steps of:
- coating a fabric sheet with an elastomeric material to form a coated fabric sheet, said coated fabric sheet having a first end portion and a second end portion;
- folding a first longitudinal edge portion of said coated fabric sheet onto a central portion of said coated fabric sheet along a first preselected imaginary line, said first preselected imaginary line extending from said first end portion to said second end portion and dividing said first longitudinal edge portion from said central portion;
- folding a second longitudinal edge portion of said coated fabric sheet onto said first longitudinal edge portion of said coated fabric sheet along a second preselected imaginary line to form a three-ply belt having a G-shaped cross-section, said second preselected imaginary line extending from said first end portion to said second end portion and dividing said second longitudinal edge portion from said central portion;
- curing said three-ply belt;
- constructing said first end portion and said second end portion of said coated fabric sheet at a predetermined angle with respect to said imaginary lines, so that said steps of folding form complementary end portions on said three-ply belt;
- and
- complementarily joining said complementary end portions together to form a three-ply splice.
4 more elements
A method for making a belt comprising the steps of:
- providing a belt core with a first elastomer and having two opposing surfaces and two opposing longitudinal edges;
- applying fabric strips to said longitudinal edges and to a portion of each said opposing surface;
- coating said belt core and fabric strips with an elastomeric cover to form a belt;
- and
- curing said belt.
2 more elements
A method for making a belt comprising:
- providing a belt core having one or more plies, two opposing surfaces and two opposing longitudinal edges;
- applying a fabric strip around each said longitudinal edge and to a first adjoining portion of each said opposing surface;
- coating a first elastomer on each said longitudinal edge and on a second adjoining portion of each said opposing surface;
- coating a second elastomer on said opposing surfaces between said second adjoining portions, to form a belt;
- said second elastomer being less hard than said first elastomer;
- and
- curing said belt.
4 more elements
A method for making a belt comprising the steps of:
- providing a belt core having one or more plies, two opposing surfaces, and two opposing longitudinal edges;
- extruding a first elastomer onto said opposing surfaces;
- extruding a second elastomer having a hardness greater than the hardness of said first elastomer onto said longitudinal edges of said belt core to form a belt;
- and
- curing said belt.
2 more elements
Dependencies are inferred from the claim text.