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Borosilicate Measuring Jug with a Pulled Handle
A measuring jug is a wide glass beaker with a pouring spout, a handle and volume marks; in borosilicate it takes boiling liquids. Make the body as for a beaker from wide tube, fuse on a handle drawn from thick rod, anneal, and mark it by weighing water.
The picture: an old glass measuring cup with its handle applied hot and a stamped seal (Metropolitan Museum of Art).
高级
Two hours, plus annealing
说明
1
1
Body
Body
From wide borosilicate tube, close and flatten a bottom, flare the rim and pull a deep spout, as for a beaker.
此步骤所需材料：
玻璃管套件1 个所需工具：
台式玻璃吹制喷灯
Jacks（玻璃工钳）
滚料板（玻璃成型用平铁板）
安全眼镜
耐热手套2
2
Handle
Handle
Heat a spot below the rim opposite the spout and the end of a thick rod together, press the rod on, bend it round in a loop and fuse its lower end to the side.
此步骤所需材料：
硼硅玻璃棒1 个所需工具：
台式玻璃吹制喷灯耐热手套3
3
Anneal
Anneal
Anneal the jug in the kiln at once and cool it slowly; a handle joint is where strain collects.
所需工具：
窑炉4
4
Mark it
Mark it
Stand it on the balance, add water 50 g at a time and scratch a line at each level.
此步骤所需材料：
水1 升所需工具：
等臂天平
金刚石划针5
5
Marks by weight
Marks by weight
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