I've been finding the right yarn for this pattern, not focusing on the translation yet. (There is no way the yarn used in that pattern is worsted weight.)
I'll try my best.
So first things first.
Here's for the yarn: We Germans don't have a standardised system for yarn weight (although by now some companys start to use the American System, because it's less ambiguous).
The yarn they used here should be: 3 [Worsted/10 ply]: 45% Wool, 40% Mohair, 15% Nylon (according to revelry)
Knitting needles would be 3.5mm and 4 mm [US 4 and 6?] and
a crochethook 3.5mm [US 4/ E?]
They suggest to try a gauge first:24 stitches and 24 rows (using the cable pattern I'll provide a little later and 4mm knitting needles) should provide you with (approximatly) 10x10 cm [about 4x4 inches].
My lokal shop and German amazon still sell this exact yarn, but I think the company's going for a new product line (they don't have it in stock in their own online shop).
In the pattern they provide two sizes: 36/38 (approximatly small) and 42/44 (approximatly medium to large), the data for the larger one is in (brackets). You'll Need about 150g [~5.3 oz] or (200g [~7oz]) of yarn.
I hope that's any help so far - I'll be back later with explanations on the pattern.
P.S. you're very welcome