Modern Plastics 1936

[Louis]

As it turns out, my friend gifted the books to me for Christmas, so I will be scanning in more pages. Rubber did come before most plastics, which explains the use of rubber equipment for plastics processing.

Any chance of turning into a digital edition to share with Plastics Dot Com? There are steps you can take to "lock" the image so it can NOT be right-click-saved or otherwise downloaded. It'd make a nice piece of "exclusive content" for the site.

I can certainly take photos of the pages, though scanning looks to be difficult as the books are old and opening them flat to scan may prove destructive. Not sure about copyright on such an old book, but hey, Google gets away with it so why not.

Hmm, they have deep pockets and lots of legal backing... maybe I should research it a bit before proceeding.

At a minimum I can post the index.

[Louis]

More page shots

Molding Press Article _1_1936.jpg

Molding Press Article _2_1936.jpg

Molding Press Article _3_1936.jpg

Krehbiel Molding Machine.jpg

[Louis]

What's so hard about molding, this machine has all the controls you would ever need... EVER!

[110Ton]

I have a huge Verson "Molding Press" that I just purchased. Original machine was built in 1953.

As of three weeks ago it was installed in the new pit in my "new" pole-barn. All new hydraulic valves... two new Baldor motors... all new electrical wiring and PLC to drive the valves/time the process.

The basic frame is sound. The platens are true. And the bushings are brand new.

This press I predict will continue squeezing out SMC parts for another 60 years.

[Louis]

Pictures?

[110Ton]

Soon. I have to get the final "idiot proofing" installed. Apparently back in 1953 operator protection wasn't the number #1 priority.

Light bars. Safety cage. Sliding power operated door. Interlocks.

That's on top of the existing "dual palm-controls" "ratchet bars" and "emergency reverse" button.

Interesting to note those were the ONLY safety features it came with originally.

As the platen raises up you can hear the air-driven ratchet cylinders go "hiss-clunk hiss-clunk" as the cams engage/disengage on the ratchet bars. These bars are 2" thick steel plate in a saw-tooth pattern. The air-pressure engages the cams in those teeth so the platen cannot drop if the press suddenly looses oil-pressure. There is a 50 gallon air-tank that this safety system attaches to... plenty of "reserve" in case of a power-failure. The operator has more than enough time to get out of the way.

The other safety feature it came with... Emergency Reverse. This is a huge palm-switch in the middle of the operator console.. between the Dual Palm Cycle Switches. Let go of the palm switches and hit that sucker and it applies FULL PRESSURE to the "lift" side of the press cylinders. We tested it and it causes the entire press to JUMP you can feel it through the whole shop.


Give me a couple weeks I'll have photos to share. Maybe video. We'll see.
1953... apparently

[Louis]

Well you certainly have me interested in seeing some photos… and a video would be fantastic!