This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1852 Excerpt: ...following dimensions are those of the Red Rover steamer: C G = 32 D P = 94 Q D = 74 C D = 65 P Q = 20. By the rule we have, A = (32)2 X 94 = 96256 and 96256 96256 74 x 65-94 x 32 1802 "53' which is the required length of the radius bar. 3. Rule 6.--Take the same data as in the last example, only supposing that C G is ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1852 Excerpt: ...following dimensions are those of the Red Rover steamer: C G = 32 D P = 94 Q D = 74 C D = 65 P Q = 20. By the rule we have, A = (32)2 X 94 = 96256 and 96256 96256 74 x 65-94 x 32 1802 "53' which is the required length of the radius bar. 3. Rule 6.--Take the same data as in the last example, only supposing that C G is not given, and that the centre H is fixed at a horizontal distance from the main centre, equal to 83-5 inches. Then the half versed sine of the arc D' D D" will be about 2 inches, and we will have by the rule A = (83-5 + 2)2 X 94-705963-5 and A 705963-5 85-5 x 94 + 65 x 74 1284-7 5 8 inches, the required length of the radius bar in this case. Table (A). In both of the last two examples =-6 nearly. The correction found by Table (A), therefore, would be 54 X-027 = 1-458 inches, which must be subtracted from the lengths already found for the radius bar, because it is longer than C G. The corrected lengths will therefore be In example 2. F H = 51-94 inches. In example 3 FH = 53-34 inches. Rule.--To find the depth of the main beam at the centre.--Divide the length in inches from the centre of motion to the point where the piston rod is attached, by the diameter of the cylinder in inches; multiply the quotient by the maximum pressure in pounds per square inch of the steam in the boiler; divide the product by 202 for cast iron, and 236 for malleable iron: in either case, the cube root of the quotient multiplied by the diameter of the cylinder in inches gives the depth in inches of the beam at the centre of motion. To find the breadth at the centre.--Divide the depth in inches by 16; the quotient is the breadth in inches. An engine beam is three times the diameter of the cylinder, from the centre to the point where the piston rod acts on it; ...
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Add this copy of The Practical Model Calculator: For the Engineer, to cart. $25.72, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
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