PSI Overarm Guard - Swing Cable
I have had this overarm DC hood for years. The design is simple and effective (with a proper sized DC). The pivot point for swinging the arm out of the way is just a 'T' of tubing slipped onto a mast of tubing. I never needed the thumbscrew that was supposed to lock the radial position, friction did the trick.
After years and a few dismantle-lube jobs, I decided it might prolong his life to relieve some of the stress. Enter some old gate hardware . . . plumbed the spot overhead and re-tasked an old cable and turnbuckle.
There is hardly any weight on the cable, it just lifts enough to take the "bind" off the tube joint. It swings so easy now that I had to find the old thumbscrew. Stays level through the whole 90+ degrees that I use with it. Just food for thought for any who may benefit.
Last edited by glenn bradley; 11-23-2009 at 06:21 PM.
Any sufficiently advanced technology is indistinguishable from magic.
- Arthur C. Clarke