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US 4,228,564 AGranted
Top arms for textile fibre roller
OwnerJohn M. Noguerainventor
Life of this patent
Estimating the term…
Abstract
This invention relates to top arms for textile fibre roller drafting mechanisms, and in particular structure associated with same to permit the exclusive use of low ratio springs to change the pressure on the top rollers between at least two force magnitudes.
Claims7
A top-roller weighting device for use with a textile fibre roller drafting mechanism top arm;
- the device comprising a body, a top-roller retainer guided by the body, spring means acting so as to apply pressure on the top-roller retainer, and a weight adjuster that moves between at least two rest positions to alter the angle of action of the spring means but not its length to thereby alter the effective weight applied to the top-roller by changing the direction of force of the spring from a substantially linear force to a force having components in two directions and in which the weight adjuster is pivotally connected to the body of the device.
Dependencies are inferred from the claim text.