Classic cars forum & vehicle restoration.

47p2 · Joined: 24 Nov 2007 Posts: 2009 Location: Glasgow

_________________
ROVER
One of Britain's Fine Cars

peter scott · Joined: 18 Dec 2007 Posts: 7219 Location: Edinburgh

Could be good for emergency stops too!

Peter Laughing

_________________
https://www.nostalgiatech.co.uk
1939 SS Jaguar 2 1/2 litre saloon

Rick · Site Admin Joined: 27 Apr 2005 Posts: 22828 Location: UK

I remember seeing a clip from the USA in the 1940s/1950s, of a car that had wheels that descended from beneath the chassis, enabling it to drive sideways into a parking space. It's probably on Youtube somewhere.

RJ
_________________
Rick - Admin
Home:https://www.oldclassiccar.co.uk
Videos:https://www.youtube.com/user/oldclassiccarRJ/videos
OCC & classic car merchandise (Austin, Ford ++):
https://www.redbubble.com/people/OldClassicCar/shop

goneps · Posted: Fri Apr 08, 2016 11:01 pm Post subject:

Almost as good as a Triumph Herald!

Riley Blue · Joined: 18 Jun 2008 Posts: 1751 Location: Derbyshire

Must be front wheel drive.
_________________
David

1963 Riley 1.5
1965 Riley 1.5

baconsdozen · Joined: 03 Dec 2007 Posts: 1119 Location: Under the car.

Where does the back seat passenger come from?. He suddenly pops up from nowhere.
_________________
Thirty years selling imperial hand tools for old machinery(Now happily retired).

Fluffle-Valve · Posted: Sat Apr 09, 2016 9:12 am Post subject:

Peter_L · Posted: Sat Apr 09, 2016 12:34 pm Post subject:

More detail here.

http://citroenvie.com/was-citroen-first-with-parking-assistance-back-in-1927/

peter scott · Joined: 18 Dec 2007 Posts: 7219 Location: Edinburgh

Kenham · Joined: 12 Mar 2012 Posts: 209 Location: Kent

One rear wheel is going in the opposite direction to the other, can't see how that can work if it is driving. As the passenger suddenly appears from nowhere the wheels turn, driver just sitting there doing nothing, looks a bit strange to me, don't think it will catch on.

Riley Blue · Joined: 18 Jun 2008 Posts: 1751 Location: Derbyshire

Peter_L · Posted: Sat Apr 09, 2016 7:32 pm Post subject:

On another piece of film, via my previous link,
http://citroenvie.com/was-citroen-first-with-parking-assistance-back-in-1927/

it looks as if the driver reaches down inside the car. Perhaps he could apply the brake to either the left or right rear wheels. This would determine which wheel turned and set the direction of travel (clock or anti) clock. Driving on the Right Rear would tend to push the car anti clockwise.

There is some debate on the web, as to the make. Citroen or Peugeot.

Also via the same link, a close up of the front wheels as they turn through 90 degrees.

Rick · Site Admin Joined: 27 Apr 2005 Posts: 22828 Location: UK

Peter_L · Posted: Sat Apr 09, 2016 7:58 pm Post subject:

goneps · Posted: Sat Apr 09, 2016 11:27 pm Post subject:

How the tie rods were extended remains a mystery, but I'd guess the drive was logical enough. With the front wheels almost at right angles there would be considerable resistance to forward or backward motion, therefore as the crown wheel tried to turn the only motion possible for the differential gears would be to force the half shaft gears to turn in opposite directions. One side would have to turn more than the other, otherwise the crown wheel would not move at all.

Turning in the opposite direction could be accomplished by using reverse instead of first. I think the key to this is that the front wheels turn through less than 90°, thus allowing slight initial motion to get things moving.

Extremely stressful on the diff., though, as someone's already remarked—and presumably a lot of clutch slipping as well.

Richard