A couple of things about the Marlin film. They show a very large oven. Crucibles are packed with parts and charcoal.The box (crucible) is placed in the oven. They do no show a top being placed on the box, nor one being removed. I have assumed the film maker simply did not bother to include that step. The film is a 2 reeler, so he had to edit for time / content.
The crucible is handled with a separate tool that grips it. They show the crucible being packed. Then they show a number of crucibles being placed in the oven. Next we see 1 crucible being removed. The worker suddenly appears at barrel. The barrel appears to have a pipe of running water in it. The entire crucible is then tilted into the water.
The whole thing about gloves would be more a safety issue than heat related.
In a 24 minute film the CCH section is under 60 seconds. They spend more time showing the factory entrance and select Marlin executives.
These type of films are not a "How it's made" episode. They were bragging pieces. A way for the company to show the entire factory operation.
I find them useful for small bits of information about the process. Actually, I found it more interesting to see all the jigs they used to shape the stocks and the press to do the forgings.
I strongly encourage any one who is interested to purchase the film themselves. Here is the contact I had at the time,
if any one is interested, Harvey Frakes MFCA 217-585-3454 between 6pm & 10pm CST
Pete
