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Brass Faucet Water Aspirator for Fast Vacuum Filtering (Boy Mechanic, 1915)
The Boy Mechanic, Book 2 (1915), p. 146, public domain · Public domain
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Charlie

14. Novemba 2026DE
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Brass Faucet Water Aspirator for Fast Vacuum Filtering (Boy Mechanic, 1915)

A water-jet vacuum pump that screws onto a tap: water rushing down a 3/4 in brass tube past a deflector plate sucks air through a 1/4 in side tube, pulling a vacuum in a corked bottle so liquids filter through the funnel far faster.
Kati
Two hours

Maagizo

1

Read the Boy Mechanic

"Turn on the faucet, and it will be found that the time required to filter any liquid will be greatly reduced."
2

Cut the tubes

Cut brass tube 7 in long and 3/4 in outside, and another 3 in long and 1/4 in outside. Drill a hole in the side of the large tube about 3 in from one end so the small tube fits it very tightly.

Vifaa kwa hatua hii:

Neli ya shaba nyeupeNeli ya shaba nyeupe1 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kekee cha mkonoKekee cha mkono
3

Fit the deflector

Saw a slot diagonally across the large tube from one side to the centre (A) and fit a piece of sheet brass tightly in it, placed so the small tube empties directly against it. Solder the plate and the small tube in.

Vifaa kwa hatua hii:

Bamba la Shaba ya NjanoBamba la Shaba ya Njano1 kipande
Lehemu ya bati na risasiLehemu ya bati na risasi1 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Chuma cha kulehemiaChuma cha kulehemia
4

Fit to the tap

Thread the upper end of the large tube inside to screw onto the faucet, or solder on a garden-hose style coupling.

Vifaa kwa hatua hii:

Lehemu ya bati na risasiLehemu ya bati na risasi1 kipande

Zana zinazohitajika:

Seti ya kukata nyuzi za skrubuSeti ya kukata nyuzi za skrubu
Chuma cha kulehemiaChuma cha kulehemia
5

Set up the filter

Seal a glass tube and the filter funnel into the cork of a large bottle with melted paraffin. Join the small brass tube to the glass tube with rubber hose. Fold the filter paper so it sticks tight to the funnel.

Vifaa kwa hatua hii:

Chupa za kioo zenye viziboChupa za kioo zenye vizibo1 kipande
Vizibo vya mziboVizibo vya mzibo1 kipande
Mrija wa kiooMrija wa kioo1 kipande
Faneli ya Kioo Yenye BombaFaneli ya Kioo Yenye Bomba1 kipande
Nta ya parafiniNta ya parafini1 kipande
Mpira wa bombaMpira wa bomba1 kipande
Karatasi ya KuchujaKaratasi ya Kuchuja1 kipande
6

Use

Turn on the tap moderately: too much water makes the suction strong enough to puncture the filter paper.
7

Troubleshooting

Aspirator troubleshooting.

Flow

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8

History and honest limits

From **The Boy Mechanic, Book 2** (Popular Mechanics, 1915), pp. 146-147 (checked on the archive.org scan boymechanicbook200chic2). The trap-bottle and implosion notes are ours.

Vifaa

10

Zana Zinazohitajika

4

Mchoro huu unatengeneza

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Kishikilia nafasi

Asipireta

Free

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1

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Emergency Glass Funnel Cut from a Bottle with a Burning String (Boy Mechanic, 1913)

Emergency Glass Funnel Cut from a Bottle with a Burning String (Boy Mechanic, 1913)

na BubblesIT

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