How to Make Concrete Blocks

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Next, crane is attached to mold and the ejector swung into position. Holding the ejector down, operator depresses a pedal, lifting the mold. Then after moving the blocks, the process is repeated.
Next, crane is attached to mold and the ejector swung into position. Holding the ejector down, operator depresses a pedal, lifting the mold. Then after moving the blocks, the process is repeated.
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Designed and built by Lemuel E. Shaw of California this highly productive machine has been producing 800 blocks daily with one operator and a helper.
Designed and built by Lemuel E. Shaw of California this highly productive machine has been producing 800 blocks daily with one operator and a helper.
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Here the mold has been lowered and locked, the crane released and ejector swung aside. Operator is filling mold. After filling and vibrating the mold, the material is struck off flush with the top.
Here the mold has been lowered and locked, the crane released and ejector swung aside. Operator is filling mold. After filling and vibrating the mold, the material is struck off flush with the top.
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First step is placing the molding
First step is placing the molding "board" on the vibrator arms. Some material from the discharge door of the mixer is on the platform above the mold, which is still supported in the raised position.
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Here's the final step ... moving blocks to the curing yard on racks especially designed for the purpose. It usually is best to cure blocks in shade. They should not be handled until cured thoroughly.
Here's the final step ... moving blocks to the curing yard on racks especially designed for the purpose. It usually is best to cure blocks in shade. They should not be handled until cured thoroughly.
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Use these figures to follow how concrete blocks are produced.
Use these figures to follow how concrete blocks are produced.
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Use these figures to follow how concrete blocks are produced.
Use these figures to follow how concrete blocks are produced.

That’s right! 100 blocks per hour … provided you have
the help and the space and racks to cure the blocks
properly. In Figure 1 (in the Image Gallery) you see the outfit complete, ready for
work. It’s a self-contained unit mounted on its own

  • Published on May 1, 1977
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