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There’s a Wikipedia article that calls it a headsaw or gang saw. I’ve seen floor joists cut by this type of saw in a c1820 house.

In my experience, condensation on tools happens when there is a warm-up outdoors and moisture-laden air comes in contact with cold steel or cast iron. Reducing air infiltration pathways will go a...

Thanks for the link, but I'm interested in the inlet to the blower, not the separator, assuming the air flows through the separator before the blower.

By air straightener, I am referring to a...

A search of SMC turned up only one mention of adding an air straightener to the outlet of the separator to stop air rotation before it enters the blower inlet. The theory is that the blower will...

This is usually the case with electronic ballasts, which can be designed to drive standard T-8 lamps to produce normal light levels, high or reduced light levels. Usually a pair of "32 watt" T-8...

George-

Andy is right - check out Phil's website and look at the top hat designs.
Briefly:
1. the gap is typically 1 1/8". Note that the gap should not cover 360°; rather the gap should exist...

"a 4 tube fluorescent fixture that usually takes time to light. I almost always have to flick one of the switches off and on several times to get it to light"
This sounds like an old pre-heat...

It is also possible to replace the ballast in your T-8 fixtures with one having a higher ballast factor to increase light output. Basically, these ballasts drive your standard T-8 lamps harder,...

The net free area of the gable vents may limit the volume of air you can exhaust, so it's worth considering that as well as the fan capacity. There are both belt-driven and direct drive fans; the...

I would NOT recommend the blade I bought last year at Sears: 9 17032. 10" 80 tooth thin kerf, negative hook, made in Germany. Cuts great but makes a painful high-pitched whine/ring. Hearing...

https://www1.eere.energy.gov/manufacturing/tech_assistance/pdfs/motor_tip_sheet14.pdf

For process and HVAC fans and pumps that will be controlled by variable frequency drives, inverter-rated...

Induction lighting has been around for a while. Its main benefits are long life and good color when compared to high pressure sodium, metal halide and other high intensity discharge lamps. So they...

I recall a story by James Thurber in which a old woman ran around plugging things IN to each outlet, convinced she was stopping an expensive and dangerous leak of electricity.

Actually it does. The lower the efficiency, the less useful output (work) you get from your motor for a given electrical input.

Getting back to the OP's question, What limits the HP motor you can...

David-

Great test data! Your family is right! :-) My family feels the same way about me, BTW.

The motor amperage vs. airflow shows a great correlation, but it is important to note that the...

Both of our readings are correct; we were measuring different points along the fan curve, however. You measured a higher static pressure because there was no airflow whereas I had 10 feet of 5" duct...

Michael-
Laziness? I was testing the impact of blower-to-filter ring combinations for three different blowers, so I was interested in relative airflows, rather than very accurate measurements of a...

I recently tested the HF 2 HP DC using a pitot tube and digital manometer ( Shortridge Instr.). This is a new DC; the motor does not have a nameplate so full load amps is unknown. The impeller is...