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Gasholder: Water-Sealed Zinc Gasometer with Balance Weights (Ramsay & Travers, 1898)
The laboratory gasometer Ramsay and Travers used to store argon: a zinc bell that rises and falls in a narrow ring of water between two fixed zinc cylinders. Because the water space is only about 2 cm wide, little gas dissolves in it. Weights on cords over pulleys balance the bell, and weights laid on top push the gas out.
Result: a water-sealed gasholder of 18 to 180 litres.
Source: M. W. Travers, The Experimental Study of Gases (1901), pp. 30 and 105-106. Unknown: sizes and how the zinc is joined. Picture: Fig. 34, the small mercury form of the same design.
Kati
Unknown
Maagizo
1
1
Make the fixed cylinders
Make the fixed cylinders
Make two concentric zinc cylinders on a closed base, leaving a ring-shaped space about 2 cm wide between them for the water. Make the top of the inner cylinder dome-shaped. Bring a gas pipe with a stopcock up through the inner cylinder. Ours: zinc soldered with tin-lead solder. Not given: sizes, how the zinc is joined, the stopcock.
Vifaa kwa hatua hii:
Bati la zinki1 outer and inner cylinders, base
Lehemu ya bati na risasi1 seams
Vali isiyojulikana1 gas stopcockZana zinazohitajika:
Mkasi wa bati
Chuma cha kulehemia
Njia ya kuunda isiyojulikana
Vipimo visivyojulikana2
2
Make and hang the bell
Make and hang the bell
Make the gasholder bell of zinc to fit closely over the inner cylinder and down into the water ring, with a dome-shaped top matching the inner cylinder's, so all the gas can be pushed out. Ramsay and Travers made bells of about 180, 27, 18 and 18 litres. Tie a cord to the top of the bell and pass it over pulleys to a hanging weight, to take the bell's own weight off the gas. Fill the ring with water. To deliver gas, take weight off the cord or lay weights on top of the bell. Not given: the weights.
Vifaa kwa hatua hii:
Bati la zinki1 bellLehemu ya bati na risasi1 seams
Kamba ya Katani1 balance cords
Kapi2 pulleys
Metali isiyojulikana1 balance weightsZana zinazohitajika:
Mkasi wa batiChuma cha kulehemiaVifaa
6- 1 bellKishikilia Nafasi
- 2 seamsKishikilia Nafasi
- 1 gas stopcockKishikilia Nafasi
- 1 balance cordsKishikilia Nafasi
- 2 pulleysKishikilia Nafasi
- 1 balance weightsKishikilia Nafasi
Zana Zinazohitajika
4- Kishikilia Nafasi
- 2 vendors sell this, none ship to you yetKishikilia Nafasi
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- Kishikilia Nafasi
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