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Tuesday

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Tuesday

#1

Tuesday

Bill Earl

In many industrial processes, the value of the product produced can be measured in thousands of dollars per minute. Down-time of any kind is very expensive and every effort is made to minimize it.

One such process has a trimming step that involves a long continuous moving blade, much like a bandsaw. Replacing this blade takes approximately 20 minutes. Engineers at the plant tested many types of exotic, expensive blade materials and managed to achieve only incremental improvements in blade lifetime. One clever engineer came up with a simple, inexpensive solution that would double the life of any blade. What was it?

Re: Tuesday

#2

Re: Tuesday

Alex Y

Did he borrow the idea from a German mathematician?

Is this for real?

Thanks for the puzzle.

Re: Tuesday

#3

Re: Tuesday

Scott Blundell

It would seem that using a mob mentality, the service life could effectively be doubled.

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#4

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Larry Barrett

I've seen conveyor belts like this, but not a cutting blade. Twice as many cutters - seems like a good idea.

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#5

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Gary Smyth

How to obfuscate? Don't know. Teeth on both sides of the blade. Or eliminating the teeth and using a continuous knife edge on both sides with a self sharpener above and below the point where the product passes. In either case a half twist of the blade makes it a M_____ and there is only one side.

Re: Tuesday

#6

Tuesday Answer

Bill Earl

As everyone figured out, a half-twist turns two edges into one yeilding twice the life from a 'Mobius' blade.

The application was in the food processing industry. And as you might imagine, a 40' long double-edged blade requires great care in handling.

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