ART
BEAUTY & WELLNESS
CRAFT
CULTURE & HISTORY
ENTERTAINMENT
ENVIRONMENT
FOOD & DRINKS
REVERSE ENGINEERING
SCIENCES
SPORTS
TECHNOLOGY
WEARABLES
Aspirator: a Vessel of Water with a Tap at the Bottom (Sutton, 1904)
The simplest aspirator: a closed vessel of known volume, full of water, with a tap at the bottom. As the water runs out it draws gas in through the apparatus attached to it, and the volume of water run out is the volume of gas drawn through.
Result: an aspirator that draws a measured volume of gas, for example 1/10 cubic foot, through an absorber at a steady rate.
Source: F. Sutton, A Systematic Handbook of Volumetric Analysis (1904), pp. 581-582. Unknown: the vessel's material and the tap. Picture: p. 581 of the book.
Beginner
Unknown
Instructions
1
1
Fit the vessel
Fit the vessel
Take a vessel of known volume, for example exactly 1/10 cubic foot, and fix a tap at its bottom. Close its mouth tightly with a cork carrying a glass tube, which connects to the absorber the gas is to pass through. Ours: a large clear glass bottle. Not given: the vessel's material, the tap.
Materials for this step:
Glass Bottle (Clear)1 aspirator vessel
Unknown Valve1 bottom tap
Corks1 stopper
Glass Tube1 inlet tubeTools needed:
Bench Glassblowing Torch
Unknown Dimensions2
2
Set the flow and draw the gas
Set the flow and draw the gas
Fill the vessel with water, connect the absorber, check that everything is tight, and open the tap partly: the small outflow of water draws the gas through the absorber. For an even rate, fit about a yard of tubing to the outlet, for a steady head, ending in a fine jet tried beforehand to give the time wanted; used reversed, the jet clogs less. When the vessel is empty the gas stops, and the water run out measures the gas passed. Collect and measure the water if the vessel is not of fixed volume.
Materials for this step:
Rubber Tubing1 outlet tubingGlass Tube1 jetTools needed:
Graduated CylinderMaterials
5- 1 aspirator vesselPlaceholder
- 1 bottom tapPlaceholder
- 1 stopperPlaceholder
- 1 jetPlaceholder
- 1 outlet tubingPlaceholder
Tools Required
3- Placeholder
- Placeholder
- Placeholder
Connected Blueprint Materials
10% Attribution
Blowing a Glass Bottle by Hand — Free-Blown Vessel Shaping
by Forge
Glassworking
63
0
0
0
5
0
10% Attribution
Natural Cork Stoppers from Bark
by Woody
Woodworking
42
0
0
0
2
0
10% Attribution
Glass Tube: Drawn by Two Glassmakers Walking Apart (Pellatt, 1849)
by Charlie
Inorganic
0
0
0
0
2
0
10% Attribution
Natural Rubber Tubing, Bands and Sheet: Sulfur-Cured with Heat
by Mary
Chemistry
10
0
0
0
2
0
This blueprint makes
CC0 Public Domain
This blueprint is released under CC0. You are free to copy, modify, distribute, and use this work for any purpose, without asking permission.
Support the Maker by purchasing products through their Blueprint where they earn a Maker Commission set by Vendors, or create a new iteration of this Blueprint and include it as a connection in your own Blueprint to share revenue.