التعاون
فنون
الجمال والعناية
حِرَف
الثقافة والتاريخ
ترفيه
البيئة
الطعام والمشروبات
الهندسة العكسية
العلوم
رياضة
التقنية
الأجهزة القابلة للارتداء
Platinum Boat: Cut from Foil and Bent over a Brass Former (Blair, 1888)
A small trough of platinum foil that carries a sample into a combustion tube. Andrew Blair (1888): "This boat is made by cutting a piece of platinum-foil in the shape shown in Fig. 65, and bending it up over a brass former into the shape shown in Fig. 64."
His pattern is 3.5 long, 1.3 wide at one end and 1.07 at the other, with tabs at each end; the figure does not mark the units. Foil thickness and the former are not given.
Source: A. A. Blair, The Chemical Analysis of Iron (1888), p. 129. Picture: Figs. 64-65.
مبتدئ
Unknown
التعليمات
1
1
Read Blair
Read Blair
"This boat is made by cutting a piece of platinum-foil in the shape shown in Fig. 65, and bending it up over a brass former into the shape shown in Fig. 64."
2
2
Cut the blank
Cut the blank
Cut platinum foil to the pattern of Fig. 65: 3.5 long between the end tabs, 1.3 wide at one end tapering to 1.07 at the other, with a tab .5 wide at the wide end and .37 wide at the narrow end, each flanked by V-notches. The figure does not mark the units, and the foil thickness, and how the foil is made, are not given (unknown).
المواد لهذه الخطوة:
البلاتين1 foilالأدوات المطلوبة:
مقصّ صفائح
طريقة تشكيل مجهولة
أبعاد غير معروفة3
3
Bend it over the former
Bend it over the former
Bend the blank up over a brass former into the trough of Fig. 64, folding the end tabs up to close the ends. The shape of the former, and how it is made, are not given (ours: brass round bar as its stock).
الأدوات المطلوبة:
قضيب نحاس أصفر مستديرأبعاد غير معروفة4
4
Use
Use
Blair opens out the sides to slide in a moist carbonaceous residue, bends them back into shape, dries the boat and contents at 100 °C, and pushes it into the porcelain or platinum tube to burn off the carbon.
الأدوات المطلوبة
4- عنصر نائب
- عنصر نائب
- عنصر نائب
- عنصر نائب
هذا المخطط يصنع
CC0 ملكية عامة
هذا المخطط مُصدر بموجب CC0. يحق لك نسخه وتعديله وتوزيعه واستخدامه لأي غرض، دون طلب إذن.
ادعم الصانع بشراء منتجات عبر مخططه حيث يكسب عمولة الصانع يحددها البائعون، أو أنشئ نسخة جديدة من هذا المخطط وضمّنه كرابط في مخططك لمشاركة الإيرادات.