Patent ID: 6513647
Filing Date: 2003-02-04
Classification: B65G,F16G

Abstract:
A scraper chain for scraper chain conveyors comprisinginterlinked vertical and horizontal chain links; each horizontal chain link having a constant cross-section all around the link, said constant cross-section being circular with a first diameter of substantially 48 mm; each vertical chain link having a pair of opposed longitudinal limbs joined at their ends by curved nose-parts, said curved nose-parts having a round cross-section with a second diameter substantially equal to said first diameter, and said longitudinal limbs having a cross-section which is flattened with respect to said round cross-section and being approximately oval in form, said flattened cross-section having a width greater than said first and second diameters and a height smaller than said first and second diameters; said scraper chain having a strength at least equal to that of a size 48 standard round link chain; said horizontal chain links serving as scraper connection having a pitch which is at least 10% and no more than 16% greater than a pitch of said vertical links, said vertical chain links having a pitch which is approximately equal to three times said second diameter of said circular cross-section of said nose-parts of said vertical chain links; and said horizontal chain links having an outer width which is approximately 30% greater than an outer width of said vertical chain links.