Patent ID: 7971495

Claim:
A tensile force measurement apparatus for determining a tensile force within a material web or strand, the apparatus comprising: a roller barrel; at least one bearing upon which the at least one roller barrel is rotatably mounted; a first force transfer element to that reacts to a transmitted force resulting from a force exerted on the roller barrel by a material web or strand, the first force transfer element to react to the transmitted force with an elongation, compression or other shape change in a direction parallel to the axis of rotation of the at least one roller barrel, wherein the first force transfer element comprises a first cantilevered force transfer element that extends in a first direction parallel to the axis of rotation of the roller barrel; a sensor that is connected to the at least one first force transfer element to output a sensor signal in response to the elongation, compression or other shape change of the first force transfer element; a second force transfer element that extends inside the roller barrel, wherein the second force transfer element transmits to the first force transfer element a bending moment produced by the force exerted on the apparatus by the material web or strand, the bending moment to act in a direction perpendicular to the axis of rotation of the roller barrel, wherein the second force transfer element comprises a second cantilevered force transfer element that extends in a second direction parallel to the axis of rotation of the roller barrel; and a connection between the first force transfer element and the second force transfer element, wherein the first direction is opposite to the second direction.