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This topic comprises 3 pages: 1 2 3
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Author
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Topic: The Importance of Shop Safety!
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Jon Miller
Jedi Master Film Handler
Posts: 973
From: San Diego, CA, USA
Registered: Sep 1999
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posted 12-04-2004 04:21 PM
Umm, not sure. Maybe Brad knows. According to the US Census Bureau, "Miller" is the seventh-most common surname in the States, behind Smith, Johnson, Williams, Jones, Brown, and Davis. Other than by surname, us three Millers are otherwise not related to each other (I think). Further discussion of this is best carried over to a new Film-Yak thread to keep our fearless leader B. Miller and his crew happy. ![[Smile]](smile.gif)
Getting back to safety practices and emergency stop switches, I did a little test with the film tension circuit on a Strong CNA-100 automation I recently bought on the cheap for my home setup. Seems the tension circuit has the same bobble delay as the film presence circuit. While an emergency stop could be wired into the tension circuit, there is nothing to be gained in terms of response unless the bobble delay can be eliminated using the (very expensive) PC interface and software.
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Randy Stankey
Film God
Posts: 6539
From: Erie, Pennsylvania
Registered: Jun 99
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posted 12-05-2004 12:38 AM
Any E-Stop button or interlock device must be hooked up so that it interrupts the power to the motor because there's often a switch in parallel with the relay/contactor that powers the motor via the automation.
Simply not allowing the automation to energize the motor relay/contactor or making the automation de-energize the motor relay/contactor won't cut it. The motor can still be powered up:
1) If the manual motor switch is closed.
2) The relay/contactor closes due to malfunction.
3) Something shorts out either the relay or the switch.
The only way to prevent the motor from starting is to ensure that it never gets power. The chances of these things happening is small but the consequences of these things happening is great.
Even a 1/4 HP motor can snap off a finger. If things happen just right (wrong) it could even break your arm. The worst scenarios could happen when you are alone in the booth at night... which is often the case for projector technicians. Let's just imagine that the worst DOESN'T happen and you only get your shirt sleve wrapped up in a gear or a shaft. You could STILL end up being held prisoner by your shirt sleve, fouled in the machine. Nobody would ever know you were in trouble until the next day when the first person came in to open the theater the next day.
The least that would happen to you would be severe embarassment. You might end up damaging equipment, "ala Flying Chuck-Key", as mentioned by Stephen. Or, you could end up caught by the arm with a severed artery, bleeding all over the place, being cinched-up by the arm, unable to escape as you watch your life blood trickle across the floor, slowly losing consciousness.
Yes, I'm being over dramatic but, as I said, the chances may be small but the consequences are great... all for the lack of flipping off a circuit breaker.
It's something that's so easy to do.
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Will Kutler
Phenomenal Film Handler
Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001
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posted 12-06-2004 06:34 PM
Thanks for mentioning the Lock-Out, Tag-Out procedures, John! ![[thumbsup]](graemlins/thumbsup.gif)
Many major corporations, schools and the military/government, that have employees involved with industrial machinery, or possible hazzardous conditions include extensive OSHA safety seminars/training as part of new employee orientation. Furthermore, employees are usually given refresher training either semi-annualy, or annualy. Also, training is documented and stored in the empolyee's personnel file.
Each movie theatre should have the appropriate OSHA safety books at least in the GM office, and they should cover every piece of equipment in the theatre that could pose a potential health/safety risk. There should also be a set of books in the projection booth. These books also give guidelines on how to cope with specific emerengcies.
Regardless if your employeer supplies OSHA safety training, it is the employee's responsibility to be familiar with how to safely operate all applicable equipment, and how to cope with an emerengcy, should one arise.
Cheers
K.
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Frank Angel
Film God
Posts: 5305
From: Brooklyn NY USA
Registered: Dec 1999
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posted 12-07-2004 01:24 AM
quote:
Each movie theatre should have the appropriate OSHA safety books at least in the GM office, and they should cover every piece of equipment in the theatre that could pose a potential health/safety risk. There should also be a set of books in the projection booth. These books also give guidelines on how to cope with specific emergencies
Gee, if someone studied all the books relevant to projector safety and operation as well as all the manuals of all the other equipment in the booth and read all the OSHA guidelines and familiarized themselves with booth operations, wouldn't that pretty much be a trained projectionist -- the very persona non grata that the chains want to ELIMINATE from the booth?
Tell me: how many theatre's have instituted as part of their corporate SOP...their corporate culture, OSHA's laudable but nearly never instituted mandate for comprehensive training and safety indoctrination of employees to the proper safety protocols of booth equipment? Not anywhere I've ever worked. How many of those assistant managers who they send up to "operate" the booth equipment have ever had any training at all, other than how to "turn it on and make it run"? To bad OSHA is nothing but the equivalent of an old man who's lived way past his potency -- yah, he can still spout some wizened truths, but he can barely muster a growl and worse, has lost all his TEETH.
As for hair getting caught in machinery, my friends, I can attest that 1) yes, it is very, VERY painful, but surprisingly, it will 2) NOT rip your scalp off -- Nature wisely lets the hair come loose at the root; thankfully, the scalp stays attached to your head. 3) It is a better instructor than a million warning signs or a million safety passages in books. You only let that happen to you once. If you let it happen twice, well, let's say it's just Natural Selection at work, trying to eliminate stupidity from the genepool.
One of the booths where I work has a glass front wall. You want to be a bit more dressy in these fishbowls. I have tried slacks and a jacket; WAY to hot and constrictive to be conducive to safety or productivity (basically, I don't work well when I am sweating like a pig). I've thought about Stephen's Labcoat idea, and actually I was about to go with that, but then I realized that I couldn't find any labcoats in black. One of the really negative characteristics of this booth is that EVERYTHING reflects off the front wall of glass. You have to practically work in the dark, and that includes your cloths. If you have any light colored shirt (forget about white), it really interferes with your ability to see the image on the screen, i.e., the change-over cues. So black is the order of the day. But what garment can you find that is 1)off-the-shelf (not custom-made), 2) dressy enough for the museum hoy-dee-toy, 3) REALLY lightweight (very essential if you don't want to be constantly dripping sweat all over the prints), and 4) fairly cheap that your miser-of-an-employer will buy them for the staff?
First I tried one of those tee-shirts that has a tuxedo printed on it -- that, my friends, is ANTI-hoy-dee-toy; the curators slapped that down that in the blink of an eye. Then I hit upon it: A French Chef's Jacket. He's got the same problem; he needs to look dressy, but he's in what amounts to a boiler room his entire work day and he needs something that he barely notices he's got on. Best thing, these jackets come in black, are made of this material that has thousands of small holes in, it much the same principle as a perf screen, and they have nice wide, formal looking, button-down lapels with brass buttons in the front and a back that is pretty much this perf type material, plus, get this, the sides are a stretchable fabric which gives when you move or better yet, when you've packed on a few extra pounds over the holiday.
I'll scan a pic of it and show you; I'd like to know if anyone here has the balls to wear one of these French inspired foo-foo things. You know the saying, "Real men don't say anything French" And I'll add, "...let alone WEAR anything French." But SMART men figure out a way to look hot while they STAY cool....heh heh.
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