TELFORD CANAL Aqueduct Bridge Dudley Smethwick England

Description: Telford Cast Iron Bridge/Aqueduct Engine Arm crossing over the New Main Line, near Smethwick. (Two canals crossing each other) Another Fine Quality Print from Martin2001 Print Specifics: Type of print: Intaglio, Steel engraving Year of printing: 1840 Publisher: Cesar Daly, Paris, Rue de Furstemberg No. 4. Condition: 1-2 (1. Excellent - 2. Very good - 3. Good - 4. Fair)When I received this scarce print, it was affected by age and folded in half (by the publisher) as shown in the last two b/w photos (not included). I had the print cleaned, removed the original paper binding strip, smoothed out the fold and applied archival tape on the back to prevent it from reoccurring. The fold is now much less noticeable.Dimensions: 20 x 13 inches, (50 x 33 cm) including blank margins (borders) around the image.Paper weight: 2 (1. Thick - 2. Heavier - 3. Medium heavy - 4. Slightly heavier - 5. Thin)Reverse side: BlankNote: 1. Green color around the print in the photo is a contrasting background on which the print was photographed. 2. Print detail is sharper than he photo of the print. 3. Due to its dimensions, the print will be mailed in a sturdy tube.Narrative (machine translated from French, no editing): Here is what the problem to solve was: two channels, having a difference in level of 5m 93, intersected at right angles the upper canal had a draft of 1m 50; the height of the banks of the lower canal was 0m 20; that of the right feet of 2 meters; finally there must have been 18 meters of spacing between the abutments. - It was therefore a question of building a vault of 18 meters span, and to give this vault a arrow such that the distance from the plane of birth from the intrados to the top of the extrados was only 2m 23.- We could not think of brick for the establishment of an arch so lowered. The stone also had to be rejected because of its rarity in the country, the rise in its price, and again because a low vault requiring very long keys, and this length can only be given at the expense of the arrow, the thrust would have been considerable and the dimension of the huge abutments. By using cast iron, on the contrary, we could obtain bows of little weight compared to the weight a stone vault, and at the same time a spire more large. The material was obtained in the country, and its transport Tusine at the location of the bridge being made entirely by water, does not could increase spending; its employment was therefore quite natural. The columns and pointed arches which support the cornice of the bridge are presented in plan and side elevation in the same Figs. 11 and 12. Fig. 13 shows the assembly of the supports between them and with the rest of the construction. We see that in a single room of cast iron, it between two columns, the entire arch included between them, and half of the two contiguous arcs. Figs. 11 and 13 give the assembly of the cornice with the plate which supports the ground of the sidewalk and the shelf which covers the ribs of the Gothic gallery. The balustrade rests on the last molding of the cornice. The uprights of this balustrade are cast at the same time that the cornice, and consequently are one with it; There is an amount above each column; their width is double that of ordinary bars, and their thickness is also bigger. Figs. 8, 9 and 10 give installation details and assembly of the different parts that make up this grid. The rail is used to hold the intermediate bars in place, which do not are only placed in the groove of the cornice. A key and the shape of the head of the uprights is sufficient to prevent this smooth to take no movement in the vertical direction. He's staying enough play between the various parts of the handrail to that variations in atmospheric temperature do not exert no influence on the rectilinear shape of these parts. Fig. 3 gives the dimensions of the upper channel, and shows the general arrangement of the parts. These are the three farms ofFig. 15 is the projection of two neighboring arcs, one of which form an exterior facing in some way. It shows the assembly of the cast iron parts that make up the same arch, when this arc forms a bridgehead. environment which directly receives the load from the water fund. Cast iron bridges built on the same canal, at points where it is crossed by ordinary roads, 6 meters wide. They are built the same way as the one we just to describe, except that, the water box and the Gothic gallery no longer exist, the cornice rests immediately on the farms. Cast iron plates support sand and stones which form the road loading. The line of the cornice, instead of being straight, in this case takes a slight curvature. The opening of the arch measured above the trusses being 20 meters as in the aqueduct bridge, the spire of the cornice is 0m 21, or about a tenth. Martin2001 Satisfaction Guaranteed Policy! Any print purchased from me may be returned for any (or no) reason for a full refund including all postage. Internet seller since 1998.Five-star service.

Price: 29.75 USD

Location: Manassas, Virginia

End Time: 2024-12-17T00:53:24.000Z

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