— 16 — 
Inches. 
20 X 7 x 7 
1 8 x6f x6f 
17 X6^ x 6 l 
16 x6 x6 
15 X 5 X 5 
14 X6 x6 
13 X 7 X 7 
12 音 X 5+ X 5 i 
12 X 7 l X 7 s 
12 X6 x6 
12 X 5 X 5 
io x6 x6 
ro x 5 x 5 
io X4i X4i 
9i X4 各 X4i 
9 i X 3¢ x $| 
9 X6 x6 
9 X 4 を X 4 i 
9 X4 X4 
8 聲 X 2 聲 
8 x6 x6 
8 X 5 X 5 
8 X4 X4 
8 X 2 i 
n X3| 
7 X6 x6 
7 X 斗 X 4 
7 X 3 X3 
7 X2^ 
6 i X 3 士 xsi 
6 去 xji x^i 
6 x 5 X5 
ö Xj X 3 
6 x 功 
5 i Xaf xaf 
5 ^ X 2 X 2 
5 X 4 J X 4 i 
5 X 3 X3 
4 聲 X 2 XT. 
4 XJ X 5 
4 X if X if 
lOH. 
lbs. 
100 
90 
80 
77 
77 
70 
68. 
57 
67 
50 
64 
54 
65 
65 
60 
45 
8r 
11 \ 
67 
52 
55 
39 
56 
56 
47 
35 
41 
30 
36 
27 
3 ^ 
a8 
21 
40 
40 
30 
23 
27 
16J 
37 
33 
37 
29 
30 
21 
22 
14 
な 4 
18 
36 
35 
科 
i8 
18 
18 
11 
di 
i 5 l 
I 5 i 
25 
18^ 
i 4 i 
叫 
10 
15 
12 
川 
H 
25 
21 
15 全 
12 
12 
11 聲 
The author is unable to state wlietlier Messrs Dunkerkley & Co. roll tee and 
angle irons or whether they make a specialty of channels and I beams. 
GIRDERS. 
Section 
Numbci*. 
Section. 
Weight. 
Maxm. Minm. 
per foot, per foot. 
Sections of Iron manufactured by C. C. Dunkerkley, 
& Co. Manchester. 
CHANNELS. 
Weight. 
Section 
N umber. 
Section. 
Maxm. 
Minm. 
per foot. 
per foot. 
Inches. 
lbs. 
lhs. 
D 51 
ii 冬 X 3 
X3 
30 
26 
D 54 
叫 X3i X3i 
27 
D 9 > 
10 X 3 i X 3 i 
31 
ゾ 51 
D 57 
9 聲 X 3 i 
27 聲 
叫 
D 63 
9 金 X 3 -i X 3 士 
3 i 
22 ； 
D 60 
畴 X 3 i 
3 〇 
21 
D 62 
22 
D 61 
7 士 x 
17 
ェ 3 
D 65 
6| X2 蚤 xri 
*9 
1 斗 
D 64 
6 去 X 2 或 X 2 * 
17 
12 
D % 
6 Xif Xif 
1 6 + 
I 4 
D 59 
5 ¢ X 2 | X 2 | 
10^ 
D 58 
4 l X ^4 X 2 i 
II 
D 56 
4 蚤 X 2 j 
ni 
9 
D 55 
4 X -2 
X -2 
9 i 
Rolls turned for new Sections. 
GIEDEES KEPT IN STOCK. 
Ijen^tha tip Io 40 fieet. 
Sectionul DimenBions. 
Approxi- 
Number. 
Top 
Bottom 
Weight 
Flauge. 
Flange. 
per foot. 
Inches. 
InclioH. 
Inches. 
lbs. - 
B 30 
20 
7 
7 
100 
D 3 ^ 
l 6 
6 
6 
62 
D 8a 
14 
6 
6 
56 
B 27 
12 
6 
6 
56 
D 25 
12 
5 
5 
43 
D ^3 
IO 
5 
5 
4 〇 
D ^ 
IO 
4* 
33 
D 19 
が 
3 聲 
25 
D 17 
8 
5 
5 
3 〇 
D 15 
8 
4 
4 
24 
D I? 
7 
3 聲 
3 聲 
20 
D 6 
7 
“ 
I 斗 
D 2a 
6 
5 
5 
29 
D ii 
6 
3 
3 
i6 
D 2 
6 
2 蚤 
ii 
D 20 
5 
4* 
4i 
バ 
D 18 
5 
3 
3 
13 
D 7 
4i 
Tf 
4 
8 
D 16 
4 
3 
3 
n 
D 4 
4 
if 
Tf 
7 
0 3 4 2 5 2 56 7 7 56 3 I 0 9 3 7 » 4 56 7 58 3 4 9 36 7921 21 2 0 8 76 4 
3 3 3 3 2JOO 00 75 3 2 2 00 2 2 4 I 4. 4 9 4 A— 4 11 4 I 9 48 00 2 1 4 4 2 1 I 
dddddddbdbddddddddddddddddbdddddbddddddddd 
