On 16/06/14 18:57, Richard Aiken wrote: > On Sun, Jun 15, 2014 at 1:02 PM, David Shaw <xxxxxx@btconnect.com> wrote: >> >> Over here in the UK, the standard tarmac/asphalt layer is the Blaw Knox, >> as pictured on the Wikipedia Blaw Knox page. > > > Interesting. The short wiki article says: "This machines was essentially a > self-propelled tailgate spreader that closely followed the truck." > > I wonder if the design changed (so that the reversing truck began following > the spreader) or the wiki author just got it wrong? Given the spelling - > "this" rather than "these" - I'm tempted to go with the latter option. Could be me that remembered it wrong, it's not exactly unheard of :-) David Shaw