XIX. 
TABLE 
LENGTHS OF LATTICE OR LACING BABS. 
Weight per foot of same, and weight of rivet heads. 
Approximate Lengths, in Feet between Centres of Rivets, 
Width 
in 
inches. 
Weight per foot, 
in pounds. 
End 
allow- 
auce 
for ono 
bar. 
Eivet- 
Heads. 
4； 
5" 
5 i" 
6 U 
6 广 
r 
7h n 
8^ 
9 " 
9 r 
10 ， 
IOi" 
i ず 
ia" 
J2i 0 
I〆' 
⑴,, 
i 4 " 
14V 
I〆’ 
! 5 i /; 
i6 f/ 
ley 
17" 
I 7 V ： 
18" 
科 " 
i 9 " 
19V 
20" 
aof 
ii" 
21 士 " 
aa" 
r 
1.25 
A" 
r 
Diame- 
ter, in 
inches. 
Weight 
of two 
heads, 
hi 
pound 
4 " 
0.468 
0.500 
0.534 
0.563 
0.599 
0.636 
0.669 
0.706 
0.741 
< 
4 V 
0.500 
0 . 55。 
0.560 
0.591 
0.6*27 
0.660 
0.695 
0.730 
0.766 
0.802 
0.845 
丨 
5" 
0.5 34 
0.560 
0 . 59』 
0.621 
0.652 
0.684 
0.719 
0.75 J 
0.787 
0.824 
0.861 
0.897 
ミ 0.934 
5 " 
0.145 
0.08 
sr 
0.563 
0.591 
0.621 
0.650 
0.679 
0.711 
0.745 
0.776 
0.809 
0.84 斗 
0.880 
0.916 
0.952 
0.990 
j.027 
5V 
6" 
0.599 
0.627 
0.65-2 
0.679 
0.709 
0.737 
0.770 
0.801 
0.835 
0.868 
0.904 
0.936 
0.974 
1.009 
1.045 
1.081 
J.H 9 
1 
(/• 
if 
1.36 
» 
0.153 
0.12 
6r 
0.636 
0.660 
0.684 
0.711 
0.737 
0.768 
0.797 
0.829 
0.860 
0.890 
0.929 
0.960 
0.996 
1.03 j 
1.065 
1.104 
1.138 
1.175 
1.214 
« 
6 叫 
if 
1.46 
0.161 
i • 
0.16 
V 
0.669 
0.695 
0.719 
0.745 
0.770 
0.797 
0.827 
0.857 
0.886 
0.920 
0.951 
0.985 
1.019 
1.05*2 
1.086 
1.122 
1.157 
1.195 
1.230 
r.269 
1.307 
7 # 
i\ n 
0.706 
0.750 
0.751 
0.776 
0.801 
0.829 
0.857 
0.884 
0.916 
0.945 
0.979 
1.012 
1.043 
1.074 
1.1 10 
1.145 
1.180 
1.218 
1.250 
1.28g 
1.327 
1.364 
M 99 
7V 
1.57 
1.95 
0.180 
0.20 
8" 
0.741 
0.766 
0.787 
0.Ä09 
0.835 
0.860 
0.886 
0.916 
0 . 94 ? 
0.972 
1.004 
1.038 
1.067 
1.102 
1.135 
1.169 
1.204 
1.238 
1.274 
1.309 
M 47 
1.383 
1.420 
1.456 
1.494 
8^ 
2 
1.67 
a.08 
0.188 
f 
O.25 
8*" 
0.802 
0.824 
0.844 
0.863 
0.890 
0.920 
0.945 
0.972 
1.002 
1.034 
1.063 
1.094 
1.128 
1.160 
1.194 
1.226 
1.261 
1.295 
MP 
1.367 
1.402 
1.440 
J -475 
1.514 
1.548 
1.587 
sv 
9" 
0.843 
c.86] 
0.880 
0.904 
0.9-29 
0.951 
0.979 
1.004 
し。 34 
1.061 
1.090 
1.123 
1.155 
1.187 
1.219 
1.252 
1.284 
1.320 
1.553 
1.388 
1.416 
1.458 
1.495 
1.531 
1.567 
1.602 
1.640 
1.678 
r 
T.78 
2.21 
0.197 
0.52 
9V 
0.897 
0.916 
0.936 
0.960 
0.985 
1.012 
1.0 38 
1.063 
1.090 
1.121 
1.150 
1.181 
1.213 
1.246 
1.275 
1.312 
1.344 
1.377 
1.414 
1.447 
1.478 
1,517 
1-553 
1.588 
1.625 
1.661 
1.700 
1.739 
1.774 
IO" 
0.954 
0.952 
0.974 
0.996 
1.019 
1.043 
1.067 
1.094 
1.123 
1.150 
1.180 
1.210 
1.24a 
1.270 
1.306 
【•538 
1.369 
1.404 
1-437 
1.471 
1.502 
1.50 
1.572 
1.610 
1.644 
1.680 
1.720 
1*755 
1.793 
1.8^0 
1.867 
10 ， 
, H 
1.88 
2.34 
0.215 
1 
0.40 
叫 " 
0.990 
1.009 
t.031 
1.052 
1.074 
1. 10a 
i.iaS 
1.153 
1.181 
1.210 
1.24 。 
1.268 
1.300 
1.362 
1.395 
1.428 
1-459 
1.494 
1.527 
*•559 
1.596 
1.630 
. 1.667 
1.704 
1.759 
1.776 
1.814 
1.850 
1.886 
1.925 
1.959 
ioV ； 
ii^ 
1.0-27 
1.045 
1*065 
1.086 
1.110 
1.135 
1.160 
1.187 
1，213 
1.24*2 
1.268 
1.298 
1.529 
1.357 
1.390 
1.422 
1.453 
1.485 
1.518 
1.550 
1.584 
1.619 
1.650 
1,689 
J -725 
1-759 
1.795 
1.833 
1.868 
1.905 
1.94 。 
1.977 
2.016 
1.051 
ji° 
2& 
2.47 
a .97 
0,721 
0.47 
1.081 
1.104 
1.122 
1.145 
1.169 
1.194 
1.219 
1.246 
1.270 
1.300 
1.329 
1.356 
1.388 
1.422 
1.450 
1.480 
1.514 
1.546 
し 577 
1.610 
1.644 
1.679 
1.714 
1.749 
1.779 
1.817 
1.851 
1.888 
1.926 
1.959 
1.996 
2.034 
a.070 
I ず 
a.6o 
3.13 
0.231 
I 
0.55 
12" 
1.119 
1.138 
1.157 
1.180 
1.204 
1.126 
1.252 
1.275 
1.306 
1.331 
1.357 
1.388 
1.419 
1.448 
1.477 
1.509 
1 . 54。 
1.572 
1.604 
1.637 
1.670 
1.704 
1.738 
1.771 
1.807 
1.840 
1.877 
1.9 f 5 
1.947 
1.98$ 
a. 020 
2.057 
2.094 
12° 
w 
1.175 
1.195 
1.218 
1.238 
i.aöi 
1.284 
1.312 
1.338 
1.361 
1.590 
1.422 
1.448 
1.476 
1.506 
1.536 
1.567 
1.599 
1.630 
1.664 
1.697 
i. 7 ?o 
1.762 
1.795 
1.829 
1.864 
1.900 
1.936 
1.969 
2.005 
1.040 
2.076 
a.i 14 
I ず 
2.73 
3 •巧 
0.250 
rr 
1.214 
1.2 30 
r.250 
1.274 
1.195 
1.310 
M 44 
1.369 
M 95 
i . 斗 2 2 
1 . 45。 
1.477 
1.506 
1.535 
1.565 
1-595 
1.627 
1.657 
1.689 
r.723 
1 . 75 ; 
1.786 
1.821 
1.852 
1.887 
1.923 
1.956 
1.990 
2.026 
2.060 
2.099 
:〆 
1.269 
1.289 
1.309 
1.532 
1.353 
1-377 
1 . 4〇4 
1.428 
1.453 
1.480 
1.509 
1-536 
1.565 
1 . 59 ; 
1.623 
1.652 
1.681 
1.714 
1.745 
1.776 
1.811 
1.842 
1.876 
1.911 
1.944 
1.978 
2.013 
a. 048 
2.083 
2.120 
a.i5 3 
W 
2.86 
3.44 
0.258 
I4 " 
1.307 
1.327 
1.347 
1.367 
1.388 
i ギ 4 
1.437 
1-459 
1.485 
1.514 
1.540 
1.567 
1.595 
1.623 
1.650 
1.680 
1.710 
1.742 
1.771 
1.805 
1835 
1.869 
1.902 
1.935 
1.969 
2.003 
2.037 
2.071 
2.106 
2.140 
2.178 
14" 
5.00 
3.6o 
0.266 
HV 
1.364 
1.40a 
1.426 
1.447 
I • 斗 7 1 
1.494 
1.518 
1.546 
1.572 
1.599 
1.627 
1.652 
1.680 
1.709 
1.740 
1.769 
1.801 
1.851 
1.863 
1.895 
1.928 
1.960 
1.994 
2.028 
2.061 
2.095 
a.119 
a.164 
2.200 
W 
I5 " 
1-399 
1.420 
1440 
1.458 
1.478 
1.501 
1.527 
1.550 
1.577 
1.604 
1.630 
1.657 
1.681 
1.710 
1.740 
1.770 
1.800 
1.830 
1.861 
1.892 
1.925 
1.956 
1.988 
2.022 
2.053 
2.089 
2.122 
a.i 55 
a.189 
2.225 
15" 
l 
3.13 
3.75 
0.274 
i 5 r 
1.456 
1.475 
1-495 
1.517 
1.538 
r -559 
1.584 
1.610 
1.637 
1.664 
1.689 
1.714 
1.742 
1.769 
1.800 
1.829 
1.859 
1.890 
1.921 
1.951 
1.982 
d.oi6 
2.046 
2.081 
2.115 
2.146 
2.179 
2.214 
2.248 
I 5 F 
1 6" 
1.494 
I. 5 H 
1.551 
1.553 
1,57 な 
1.590 
1.619 
1.644 
1.670 
1.697 
1.725 
1.745 
1.771 
1.801 
1.850 
1.859 
1.889 
1.920 
1 . 95。 
1.980 
1.013 
a.041 
2.077 
2.109 
2.140 
a.I72 
2.206 
a. 240 
1.273 
16" 
1.26 
5.91 
0.282 
i6!" 
1.548 
1.567 
1.588 
1.610 
1.630 
1.650 
1.679 
1.704 
1.730 
1-755 
1.776 
1.805 
1.851 
1.861 
1.890 
1.970 
1.948 
1.977 
a.009 
2.038 
2.070 
•2.101 
2-133 
2.165 
a.i 99 
2.22g 
1.264 
a.297 
16^ 
3.39 
4.06 
o.a9i 
17 " 
1.587 
1.602 
1.6^5 
1.644 
1.667 
1.689 
1.714 
1.758 
1.76a 
1.786 
1.811 
1.835 
1.863 
1.892 
1.921 
1.950 
1.977 
2.008 
•2.036 
2.068 
2.100 
2.131 
2.161 
2.19-2 
2.2^4 
2.257 
7.-288 
a •叫 
17" 
i 7 r 
1.640 
1.661 
1.680 
1.704 
I. 7 W 
1.749 
1.771 
1.795 
1.821 
1.84a 
1.869 
1.895 
1 - 9^5 
1.951 
1.980 
a.009 
2.037 
2.067 
2.098 
< 2.129 
2.159 
2.189 
2.221 
2.2s ^ 
2.184 
2.319 
M 49 
3 吾 
4.11 
0.299 
18" 
1.678 
1.700 
1.7*20 
1.759 
1.759 
1.779 
1.807 
1.829 
1.851 
1.876 
1.^02 
1.9-28 
1.956 
1.982 
1.013 
2.038 
2.068 
2.098 
2.127 
Ci.156 
2.187 
•2.219 
2.24g 
2.280 
2.313 
2.343 
2.374 
j 8 ° 
i8V' 
1.739 
1.755 
1.776 
1.795 
1.817 
1.840 
1.864 
1.887 
1.9/1 
1.935 
1.960 
1.988 
2.016 
*2.042 
a.070 
2.100 
2.119 
2.156 
1.186 
2.216 
2.244 
1.176 
*2.308 
2.537 
2.568 
1.400 
i8y 
4.38 
0.307 
r .774 
1.793 
1.814 
1.833 
1.851 
1.877 
1.900 
x. 9^3 
1-944 
1.969 
し 994 
2.022 
2.046 
1.077 
2.10-2 
2.151 
2.159 
2.187 
7,216 
2.*244 
^7i 
2.304 
2.534 
2.364 
2.396 
*2.428 
i 9 " 
3 音 
4.54 
0.515 
WV 
1.850 
1.850 
1.868 
1.888 
1.9 了 3 
1.956 
1.956 
1,978 
■2.003 
2.028 
a. 05 ; 
2.081 
2.109 
2.133 
2.161 
2.189 
2.219 
a .-244 
2.-273 
2.303 
2.33? 
2.36; 
2 . 39 ミ 
2.425 
2.445 
I9 r 
20" 
1.867 
1.886 
1.905 
1.916 
1.947 
1.969 
1.990 
2.013 
a.o ?7 
2.061 
2.089 
1.115 
a. 1 40 
1.165 
2.19a 
1.221 
2.249 
2.276 
2 .S 04 
2.553 
2.362 
2.392 
2.423 
2.452 
■2.482 
io n 
5 聲 
4.69 
0.323 
- 
1.925 
1 . 94。 
1.659 
1.983 
2.005 
2.026 
2.048 
2.071 
2.095 
2.122 
2.146 
2.172 
•2.199 
2.22գ 
2.253 
a.28c 
2.308 
2.554 
M63 
2.392 
2.422 
2 . 45。 
2.479 
2 . 5 1 C 
20i M 
21° 
1-959 
1.977 
1.996 
2.020 
a. 040 
2.060 
a. 08 3 
2.106 
2.129 
2.155 
2.179 
2.206 
2.229 
a .257 
2.284 
2.513 
2-337 
2.364 
2.393 
2.423 
2.450 
2.478 
2.509 
2.545 
•21" 
3 i 
4.85 
0.532 
2 I 
2.016 
* 2.034 
* 2.057 
2.076 
2.099 
2.120 
2.140 
2.164 
2.189 
2,214 
1.140 
2.264 
a.^88 
2.319 
2.343 
2.368 
2396 
2.425 
2.452 
2.479 
夂 . 5。9 
2.54/2 
2.570 
2 ず 
斗 
5.00 
0.340 
22’’ 
2.051 
2.070 
2.094 
i.t 14 
2.134 
2.153 
2.178 
2.100 
2.225 
2.248 
2.297 
2.324 
2.549 
2.374 
2.400 
2.4-28 
2.455 
•2.482 
2.51c 
2.543 
2 . 57。 
7.596 
22° 
4 " 
4 P 
5 " 
5 ^ 
6 々 
广 
IV 
8 '， 
8i° 
9 " 
gr 
IO_ 
ioi ， 
ii" 
ur 
12" 
T2i° 
15" 
T 3 F 
14" 
ず 
151 
16" 
I7" 
i8 ，# 
i8V ， 
19 ， 
I9 r 
20" 
20^ 
71° 
22° 
4 i 
5.16 
0.348 
