F - Mech Eng,Light,Heat,Weapons – 16 – G
Patent
F - Mech Eng,Light,Heat,Weapons
16
G
26/111, 74/246
F16G 1/26 (2006.01) B29D 29/10 (2006.01) F16G 5/16 (2006.01)
Patent
CA 1057085
ABSTRACT OF THE DISCLOSURE An endless power transmission belt and method of making same is provided herein. The belt is made primarily of an elastomeric material. The belt is a flexible, cool running, stress-relieved belt, and these characteristics are imparted to the belt by cooperating components thereof including a continuous fabric layer which defines the inside surface of the belt and the fabric layer has a plurality of folded portions extending into the compression section of such belt at spaced positions along the endless path of the belt. Each of the folded portions has associated portions of fabric in contact at an associated interface. The interfaces serve as stress-relief slits for the belt with the associated portions of fabric serving as fabric cushions on opposite sides of an associated stress-relief slit. The method includes the following steps: lining a member having a plurality of alternating ridges and grooves with a fabric material; placing a plurality of alternating ridges and grooves with a fabric material; plac- ing a plurality of elongated strips of elastomeric material in those fabric- lined grooves; laying a sheet of elastomeric material over such strips, to define an assembly; removing that assembly from the member and wrapping the assembly around a cylindrical drum to cause the fabric material to have a plurality of folded portions each having associated portions of fabric material arranged closely adjacent to each other; building the remainder of a belt-defining sleeve outwardly of the assembly; curing and cooling said sleeve, therebyto the strips and sheet of the assembly to flow together as a unitary mass to define a compression section of the belts to be cut from said sleeve, and so that the associated portions of fabric material are folded against each other; and finally cutting said sleeve, to define a plurality of such endless power transmission belts.
261164
Thomas James R.
White Jack D.
LandOfFree
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