2 loading galleries - physics and safety Q

About as I imagined it, though it doesn't appear the drafts person really understood some bsaics. Probably installed correctly. Still see no good reason for the 1/3 2/3 practice. But each half is drawn equal or bottom longer, and based in your comments not built that way.
 
About as I imagined it, though it doesn't appear the drafts person really understood some bsaics. Probably installed correctly. Still see no good reason for the 1/3 2/3 practice. But each half is drawn equal or bottom longer, and based in your comments not built that way.
 
Interesting. Is the reason for the dual level arbors in general to achieve greater maximum arbor capacity? Or does it have more to do with loading ease or efficiency? The counterweight pit answers my question about limiting the batten travel. You don't limit it really when the arbor can drop below the level of the stage floor. Does the "Operating Gallery" have rope locks? Seems odd to call it an "Operating Gallery" otherwise, unless it's meant for operating spot lines as I see a pin rail in the drawing.
 
I'm curious how you coordinate the use of two lock rails. I'll assume they are not connected. I have heard of that nut not seen it. Do you leave the gallery unlocked most of the time, or opposite?

A venue I work in occasionally has a very similar setup. The locks are not connected. They leave the locks on their mid-rail open all the time. I can't recall ever seeming them in use. Maybe if you didn't have much wing space that extra couple of feet on the deck could be valuable during a show run? It never made any sense to me. There better be a really good reason if I'm going to climb a couple flights of stairs to move a line instead of doing it on the ground.
 
Techie - I agree in all except maybe a 100% road house or, in a renovation where the wing space is very valuable, then mid-rail only and a lot of effort planning an easy and fast route to fly rail. Maybe once or twice in a hundred+ projects?

I guess there have been some instances where the amount of rail work uses the ability to have many sets close together all moving, but that style of production and the growth of automation seem to have minimized that need.
 
I'm curious how you coordinate the use of two lock rails. I'll assume they are not connected. I have heard of that nut not seen it. Do you leave the gallery unlocked most of the time, or opposite?

The way I've seen it is for load in and small shows the locks at stage level are used. The locks on the mid are left open and perhaps even locked open with a bar. Before the run they engage all the locks on the mid and then open all the locks on deck level. I worked an awards show where every inch of deck space was drawn out and claimed so relocating the 5 fly operators to the mid was very helpful.
 
The way I've seen it is for load in and small shows the locks at stage level are used. The locks on the mid are left open and perhaps even locked open with a bar. Before the run they engage all the locks on the mid and then open all the locks on deck level. I worked an awards show where every inch of deck space was drawn out and claimed so relocating the 5 fly operators to the mid was very helpful.
@soundman @BillConnerFASTC @techieman33 The inclusion of dual locking rails must impinge upon your use of "knuckles" or "Knuckle dusters" as some venues term them.
Toodleoo!
Ron Hebbard
 
Yes - even a single rail elevated much might make them problematic. Since their use seems rare these days, not sure it would be a primary concern and there are other ways to limit travel.
 
Yes - even a single rail elevated much might make them problematic. Since their use seems rare these days, not sure it would be a primary concern and there are other ways to limit travel.
I'd always considered "knuckles" as quickly and easily adjusted and reset operating trims rather than for actual travel stops. Tape or thin ribbons of brightly colored cloth passed through your hemp offered the advantage of passing through locks but I preferred knuckles over tape as they left zero sticky residue behind to attract gummy dirt.
EDIT: I always installed my knuckles with the locking rings above the knuckles so you could hear them coming if you kept your ears open. Also, installing the knuckle below the locking ring served as a warning that informed operators knuckles were in use if the locking ring wasn't in its normal location immediately above the lock.
Toodleoo!
Ron Hebbard
 

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