A N T I M O N Y : ITS HISTORY, CHEMISTRY, MINERALOGY ...

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THE ANTIMONY PREPARATIONS AND THEIR USES.
Tin.
Ant
English, for heavy loads .
,, medium,,
For mills .
,, heavy axles
> J>
„ rapidly revolving axles
Bearings of great hardness
} > a
Bearings (cheap)*
Bavaria, durable cold running .
Austrian Govt. railroad .
Distributing slide valves .
© r Westphalia, Bahn .
*•£ Magdeburg - Halber-
0g0 standter
Saarbriicken .
Bergisch-Markische
Diverse Bahnen (recommended)
Magdeburg-Leipziger
Rheinische .
S Ostbahn
1-Jerlin-Hamburger •
>• Oppeln-Tarnowitz
17*47
76*7
72*0
15
72*7
38
175
12
21*5
90
90
83-2
82
74
85
80
85
91
82
42
15
,§ C«M ea [ Car-box metal
a '£, ^1 d Anti-friction metal .
«*33^J American ., ,,
&g 2 IN I Magnolia metal ; -
!*-* 1
5
Babbitt's anti-Mction metal f . 83*3
Original Babbitt metal ;89
I
: 5
26*0
18*2
6
77
82"
21*5
8
7
11-2
11
15
10
12
10
6
16 12
20
16
14-38
11-93
19'60
16-45
15
8-3
7'3
Copper.
5-62
7*8
2-0
3
9-1
1
6
2*5
4
8
2
3
5'6
7
11
5 8
5
3 6
...
bismuth
trace
8 : 3
3-7
Zinc.
7614
46"
47*"
...
2
88
90
...
...
...
trace
0 V 9S
trace
...
149
Iron. Lead*
... ...
... 42*
4
70 I ;;;.
... . ...
...
...
...
...
'.'.'. 84"
... ! 60
... ! 42 !
0-61 84*33
... S832
0-65 78*44 :
trace 83*55
... 80
...
(c) Type-metal.—It is essentially an alloy of lead, antimony, and
tin, with, occasionally, the addition of copper. One way of manufacturing
the alloy is as follows:—Heat strongly 2 kilos, of tin in a
* Siemens and Halske, equal parts of zinc and cadmium and 10 per cent. Sb.
f It can be made thus :—Melt separately 4 parts of copper, 12 parts of Banca tin,
and 8 parts of antimony regulus, and, after fusion, add 12 parts of tin. The
antimony is added to the first portion of the tin after its fusion, and the copper is
introduced after the vessel is taken off the fire and l>efore its content is poured
out. The charge is kept from oxidation by a layer of powdered charcoal. A small
percentage of aluminium added to the mixture gives a good result
The German Babbitt metal is somewhat harder than that used in the United
States, and for some uses is probably too hard. Many railroad companies in the
United States buy a hard Babbitt metal and reduce it with pure tin to suit various
requirements, e.g. :—
German railway specimen . . 88 "3 tin. 11*1 Sb. 5*6 Cu,
U.S. „ . . 88-9 „ 7-4 „ 37 „