118 
THIRD SERIES — TABLES OF SCANTLINGS 
TABLE VI. 
Scantlings of Red Pine when acted upon by two forces P and Q, viz. 
P in the direction of the depth, Q in the direction of the breadth. 
lu this table, Q = P; P = pressure upon each foot in length; 
The deflections each way of the timber are equal 
Breadth 
Depth 
1-00. 
Length 
in feet, 
clear 
bearing. 
6 
7 
8 
9 
*10 
11 
12 
13 
14 
15 
"Te" 
17 
18 
19 
20 
Value of P. 
1-0000 lbs. 
•0089 cwts. 
Depth. 
Breadth. 
•28 X -28 
•47 X -47 
•63 X ^63 
•78 X -78 
•93 X -93 
1-06 xro6 
1-19 X 1-19 
r32X1^32 
1-44 X 1-44 
1-56 X 1^56 
1-67 Xr67 
1- 78 XI -78 
r90Xl-90 
2- 00 X 2-00 
2^11 X211 
Value of P. 
16-0000 lbs. 
•1428 cwls, 
Depth. 
Breadth. 
•55 X -55 
•93 X ^93 
r26Xl-26 
1-57 XP57 
1- 85 X 1-85 
2- 12X~2'a2' 
2^38X2-38 
2^63X2^63 
2^88 X 2-88 
3^11X3^11 
2'21X2^21 
2-32 X 2-32 
2-42 X 2-42 
2-52X2-52 
2'62X2^62 
3^34X3-34 
3-57X3-57 
3^79 X3^79 
4^01 X4^01 
4^22 X 4-22 
4-43 X 4-43 
4- 63 X4^63 
4^84 X 4-84 
5^04X5^04 
5- 24 X 5^24 
Value of P. 
39-0625 lbs. 
•3487 cwts. 
Depth. Breadth. 
•69 X -69 
M6XM6 
1^58 XI -58 
r96Xl-96 
2-31 X2-31 
Value of P. 
81 0000 lbs. 
•7232 cwts. 
Depth. 
Breadth. 
2^65 X 2-65 
2^98X2-98 
3-29X3-29 
3-60X3^60 
3-89X3^89 
4-18X4^18 
4-46X4^46 
4- 74X4^74 
5- 01X5^01 
5^27X5-27 
5- 54 X 5^54 
5^79X5-79 
6^05 X 6^05 
6- 30X6-30 
6-54X6-54 
•83 X -83 
1- 40 X 1-40 
r89Xl-89 
2- 35 X 2-35 
2-78X2-78 
3-18X3-18 
3-57X3-57 
3- 95X3^95 
4^31 X 4-31 
4- 67X4^67 
5-02X5-02 
5-35X5-35 
5- 68X5-68 
6- 01X6-01 
6-33X6-33 
Value of P. 
150-0625 lbs. 
1-3398 cwts. 
Depth. 
Breadth. 
-97 X -97 
1- 63X1-63 
2- 21X2-21 
2- 74X2-74 
3- 24 X3-24 
3- 71X3-71 
4- 17X4-17 
4- 61X4-61 
5- 03X5-03 
5-45X5-451 
6-64X6-64 
6- 95X6-95 
7- 26X7-26 
7-56X7-56 
7-85X7-85 
5- 85X5-85 
6- 25X6-25 
6- 63X6-63 
7- 01 X7-01 
7-38X7-3 
7- 75X7-7 
8- 11 X8-11 
8-47X8-47 
8- 82X8-82 
9- 16X9-16 
i 
Deflections in the middle for each foot in length. 
v»i^^°f|^i^of aninch.|^of aninch.[^of aninch.j^of aninch.[^of aninch. 
40-00 lbs. 
-35 cwts. 
640-00 lbs. 
5-71 cwts. 
1562-50 lbs. 
13-94 cwts. 
3240-00 lbs. 
28-92 cwts. 
6002-50 lbs. 
53-59 cwts. 
Value of 
P 
25-00 lbs. 
-22 cwts. 
400-00 lbs. 
3-57 cwts. 
976-56 lbs. 
8-71 cwts. 
2025-00 lbs. 
18-08 cwts. 
•3751-66 lbs. 
33-49 cwts. 
III. 
Factor 1-6. 
IV. 
Factor 
V. 
Factor ^ . 
Hi'F Column I. II. 
breaking Factor 4, I Factor 2. 
weight. 
* Example.— B,ei Pine 10 feet long, 4-6? in. by 4-67 in., with 10x81 = 810 lbs, 
pressure in the direction of the depth, and with 810 lbs. pressure in the direction of the 
breadth, deflects each way -i§ or i of an inch. 
The breaking weight, in the direction of the depth, and also of the breadth, of Red Pine 
10 feet long, 4-67 in. by 4-67 in., is 10 x 81 x 8-447 x * = 9122 lbs., the pressure bein( 
uniform in both cases ; or cue half of that weight, viz., 4561 lbs., if the pressures act ii 
the middle. 
