—— löU — 
These equivalent leugths do not include the lengths of the upset ends themsel- 
ves : they represent simply the extra lengths to be added to the bar to equalize tlio 
weight of the nuts, sleeve nuts, or turn buckles, and the extra iron for enlarging the 
ends, which are six or eight inches long. 
It is not necessary in a preliminary estimate to ünd the exact quantities of 
materials, so approximations to actual dimensions can be made. This will be fully 
illustratetl in the next chapter. 
The following table, taken from Carnegie's u Pocket Compauiou,，， will be Ibuml 
useful iu preparing bills of iron, as will also many of the tables given in Chapter II. 
WEIGHT OF 
KIVETS, and KOÜND HEADED BOLTS WITHOUT 
NUTS, PER 
100. 
Length irom under 
head. 
One 
cubic foot weighing 480 
lbs. 
Length. 
r 
fV* 
r 
r 
1° 
け " 
Inches. 
liia. 
Bia. 
Dia* 
Dia. 
Dia. 
I)ia. 
Dia. 
Bia. 
U. 
54 
12.6 
21.5 
c8.7 
4 口 
65.3 
91.5 
123. 
itf 
4 
6.-2 
13-9 
23.7 
31.8 
47.3 
70.7 
98.4 
り 3. 
6.9 
15.5 
15.8 
54-9 
51.4 
76.2 
105. 
142. 
2 
7-7 
16.6 
27.9 
37.9 
55.6 
81.6 
112. 
】 5 〇 . 
8.5 
18.0 
50.0 
41.0 
59.8 
87.1 
II9. 
159. 
9.2 
19.4 
44.1 
63.0 
92.5 
J 2 Ö. 
167. 
2$ 
10.0 
20.7 
34.3 
47.1 
68.1 
98.0 
I53. 
176. 
3 
10.8 
22.1 
36.4 
50.2 
72.5 
103. 
I40. 
184. 
Si 
ir.5 
q .5 
38.6 
53.3 
76.5 
109. 
I47. 
19〕. 
3i 
12.3 
24.8 
40.7 
56.4 
80.7 
114. 
1 54 - 
201. 
3 冬 
13.1 
26.-2 
42.8 
59.4 
8^.8 
lao. 
i6i. 
210. 
4 
13.8 
27.5 
45.0 
62.5 
89.0 
I2S. 
167. 
218. 
4 + 
14.6 
28.9 
47.1 
65.6 
93.2 
ip. 
174. 
227. 
154 
30.3 
49.2 
68.6 
97.4 
136. 
i 3 i. 
236. 
4 
16.2 
31.6 
51.4 
71.7 
102. 
14.2. 
188. 
244 . 
5 
16.9 
33 .。 
53.5 
74.8 
io6. 
147. 
195. 
253 . 
5 七 
17.7 
344 
55.6 
77.8 
no. 
153. 
202. 
5 | 
18.4 
35.7 
57.7 
80.9 
114. 
158 - 
209. 
270. 
5 ? 
19.2 
37.1 
59.9 
84.0 
118. 
16^. 
216. 
278. 
6 
20.0 
3&5 
62.0 
87.0 
122 ， 
169. 
223. 
287. 
6i 
21.5 
41.2 
66.3 
95.2 
I3I. 
180. 
236. 
3 〇 4 « 
7 l 
g 
24.6 
45.9 
46.6 
70.5 
74.8 
99.3 
106. 
i 39 . 
147. 
191. 
ao2. 
250. 
264. 
3!r. 
338 . 
49.4 
79.0 
112. 
156. 
213. 
278. 
355 . 
u 
9 
9i 
IO 
17.6 
29.2 
30.7 
$2.*2 
52.1 
54.8 
57.6 
60.5 
83.3 
87.6 
91.8 
96.1 
Il8. 
124 . 
ISO. 
I36. 
164. 
173. 
181. 
189. 
223. 
234. 
245. 
256. 
292. 
306. 
319 * 
333 . 
372 . 
389. 
406. 
423. 
10 蚤 
II 
3 3 ぶ 
35-5 
65.0 
65.7 
ior. 
105. 
14a. 
I48. 
198. 
206. 
267. 
278. 
547. 
361. 
440 . 
457. 
1 i i 
?6.8 
68.5 
109. 
155 . 
214. 
^89. 
575 . 
474- 
12 
38.4 
71.2 
113. 
l6l. 
500. 
388. 
491 . 
Heads. 
1.8 
5*7 
10.9 
13.4 
22.2 
38.0 
57.0 
82.0 
