[SML] Spreader plates

[Bill Sapsis]

Bill

The other function of a spreader plate is to keep the arbor rods from bending in the event of an out of balance (runaway) accident.  While its highly unlikely they'll ever have a runaway with a shell piece, and they would probably have much more significant problems if they do have a runaway, placing the plates in their proper location is always a good idea.

Pulling the weights, while arduous and time consuming, isn't that big a deal.

Thanks

Bill S
 
bill at sapsis-rigging.com
http://sapsis-rigging.com
+1.267.278.4561 mobile 


On 4/30/18, 3:40 PM, "Stagecraft on behalf of Bill Conner via Stagecraft" <stagecraft-bounces at theatrical.net on behalf of stagecraft at theatrical.net> wrote:

    In process of inspecting 20+ year old rigging system. There are
    spreader plates for one every 5' basically, not unusual for the time
    but deficient based on today's standards and "best practice" of one
    every 2'. Easy enough to add on most sets but the shell sets are in
    the 4000-5000 pound range, and of course weights never removed. Since
    the spreader plates generally are to keep the weights on the arbor in
    the case of a runaway, does it matter on a lineset where the weight
    never changes? Is it really worth deading off the load, and unloading
    and reloading thousands of pounds of weights?
    
    -- 
    Bill Conner FASTC
    
    ____________________________________________________________
    For list information see <http://stagecraft.theprices.net/>
    Stagecraft mailing list
    Stagecraft at theatrical.net
    http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net