The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1982
Filed:
Feb. 20, 1981
John H Willis, Anderson, SC (US);
Trevor C Heath, Yateley, GB;
TBA Industrial Products, Limited, Manchester, GB;
Bishop & Associates, Incorporated, Greenville, SC (US);
Abstract
Apparatus for drawing newly-spun and dressed glass filaments from a bushing comprises, in combination, a rotary cutter constituted by a blade roll with radially directed blades projecting from its surface and a second, back-up roll having a resilient surface, said rolls being mounted with their axes substantially parallel and with at least the tips of the blades in contact with said resilient surface to define a cutting zone for the cutter, together with an auxiliary, independently driven start-up roll, variable speed drive means for accelerating said auxiliary roll to a surface speed at least equal to the surface speed of the back-up roll under production conditions, and guide means operable to divert a bundle of filaments being wound on said auxiliary roll to the surface of the back-up roll and thereafter into the cutting zone of the cutter, whereby the filaments are cut into staple fibres. A method of manufacturing staple fibres based on the use of above apparatus is also disclosed.