Samvinna
LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
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.
Miðlungs
Two hours
Leiðbeiningar
1
1
Read the Boy Mechanic
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
2
Cut the tubes
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.
Efni fyrir þetta skref:
Messingrör1 stykkiNauðsynleg verkfæri:
Járnsög
Handbor3
3
Fit the deflector
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.
Efni fyrir þetta skref:
Messingplata1 stykki
Tin-blý lóðmálmur1 stykkiNauðsynleg verkfæri:
Járnsög
Lóðbolti4
4
Fit to the tap
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.
Efni fyrir þetta skref:
Tin-blý lóðmálmur1 stykkiNauðsynleg verkfæri:
SnittsettLóðbolti5
5
Set up the filter
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.
Efni fyrir þetta skref:
Glerflöskur með tappa1 stykki
Korktappar1 stykki
Glerrör1 stykki
Glertrekt með stút1 stykki
Paraffín1 stykki
Styrkt gúmmíslanga1 stykki
Síupappír1 stykki6
6
Use
Use
Turn on the tap moderately: too much water makes the suction strong enough to puncture the filter paper.
7
7
Troubleshooting
Troubleshooting
Aspirator troubleshooting.
Flow
Loading...
8
8
History and honest limits
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.
Efni
10- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 2 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 stykkiStaðgengill
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