Funktion of a wrecker

[AWR13]

Hello folks,
I have a question about the function of awrecker. Today the towed vehicles are lifted by hydraulic system with a "bridge".
BUT
How did this before (earlier) made when the vehicles were lifted by crane? Did someone have a drawing, photos, etc. I have only found pictures of vehicles from the front . (I mean such a construction CLICK (http://www.hankstruckpictures.com/pix/trucks/bill_banks/2014/08-22/wreckers/miscellaneous_wreckers/02-img_1178_zps4399af9a.jpg))

Thanks, greetings from Germany
Andreas

[bigford]

look up holmes 500/800 wrecker
they were hand cranked or winch
controled

[doodlebug]

Try this link for pictures, https://www.google.com/search?q=holmes+wrecker+beds&rlz=1T4GGHP_enUS445US445&source=lnms&tbm=isch&sa=X&ei=fObCVImZH9i2yATCwICYBg&ved=0CAkQ_AUoAg&biw=1024&bih=641
Cheers, Neil.

[Manfred]

Andreas,

the boom was raised with winds. A building report published 15 - 20 years time - in an old German model magazine (truck model). It was a similar assembly of a truck.

Manfred

[fhhhstix]

Here is a similar wrecker I built a few years ago. The boom and cable hook work off of winches. I will offer some advice, you will need some kind of block and tackle or a worm gear winch so it will hold a load. If not when you raise the boom then try to use the hook cable it will pull the boom back down.

http://i574.photobucket.com/albums/ss185/brokenb4/L%20Model%20MACK/100_1649.jpg

http://i574.photobucket.com/albums/ss185/brokenb4/L%20Model%20MACK/100_1650.jpg

http://i574.photobucket.com/albums/ss185/brokenb4/L%20Model%20MACK/100_0770.jpg

http://i574.photobucket.com/albums/ss185/brokenb4/L%20Model%20MACK/100_0356.jpg

Travis

[FlyingBeagle]

Below is a link to a youtube channel that shows an old style wrecker with a cable winch system. He has a ton of videos of his wrecker performing all different types of recoveries on off road vehicles. You can see the way the vehicle is rigged to the wrecker pretty clearly in this video. Hope it helps.

https://www.youtube.com/watch?v=_FiEiYYSHHY

[AWR13]

Hello,
thanks a lot. Now I know, for what I have to search for. The name "Holmes" was the right tip.

Andreas