SV: [AT] OT Roller!

[Dave Merchant]

The real answer is probably not "Photoshop", but "Pixar" or "Lightwave" 3D 
software.

The 3 roller design is supposed to level better, since a hump makes
one of the rollers lift off the ground, transferring its weight to the high 
spot
and flattening it out. Like mounting a grader blade under the center of a 
tractor.

ie, the 3 rollers are rigid, not equalized as would be the case with a 3 
axle truck.

Almost guaranteed it was a loading accident, steel on steel, slipped off 
the side.

BTW, 15-20 years ago, in NASA Tech Brief magazine, NASA announced they
had patented the wheel equalization linkage now used on the Mars Rovers.
However, the design had been used on steam locomotives starting in the 
early 1800s!

Dave Merchant


At 10:55 PM 3/17/2004, you wrote:
>I commented to a teenager at dinner tonight about the photo. I told him
>the big question everyone had was, "What would cause a road roller turn
>over?"  His immediate comeback was, "PhotoShop!"
>
>Larry
>
>-----Original Message-----
>From: at-bounces at lists.antique-tractor.com
>[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of charlie hill
>Sent: Wednesday, March 17, 2004 5:35 PM
>To: Antique tractor email discussion group
>Subject: Re: SV: [AT] OT Roller!
>
>It is a wierd picture for sure.  It almost makes me say it is doctored.
>Maybe the image of the overturned roller is loaded on top of a picture
>of a
>newly paved road.  I agree that the way it is laying looks as if it
>rolled
>off the side of a lowboy trailer but there is no way they would have
>loaded
>it or unloaded it on freshly laid asphalt.
>
>Maybe it broke down in the middle of the job and they took something
>like a
>gradall or an excavator and shoved it over.  Who knows or since Mattias
>likes it....go figure.
>
>Charlie
>----- Original Message -----
>From: "Mattias Kessén" <Mattias.kessen at telia.com>
>To: "Antique tractor email discussion group"
><at at lists.antique-tractor.com>
>Sent: Wednesday, March 17, 2004 5:39 PM
>Subject: Re: SV: [AT] OT Roller!
>
>
> > > Charlie
> > > I saw one get turned on it's side while unloading. One ramp broke.
> > >
> > > Skip
> >
> >
> > I thought of that but but 1. One would never load on the newly paved
>parts
>it would only have to back of a few metres to not do that and 2. It
>almost
>looks like it been standing still and flipped over there are some marks
>like
>it been standing there for a while before it rolled.
> >
> > Aaah, maybe it gave in and the workers decided they'd like a new one
>and
>got outta the way theshortest way.
> >
> > /Mattias




Dave Merchant
kosh at nesys.com
nesys_com at ameritech.net

http://www.nesys.com
http://www.nesys.org