Some cool cnc engineering photos:
Image from page 44 of “Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean” (1855)
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Identifier: reportsofexplora02unit_
Title: Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean
Year: 1855 (1850s)
Authors: United States. War Dept Henry, Joseph, 1797-1878 Baird, Spencer Fullerton, 1823-1887 United States. Army. Corps of Engineers
Subjects: Pacific railroads Discoveries in geography All-natural history Indians of North America
Publisher: Washington : A.O.P. Nicholson, printer [etc.]
Contributing Library: San Francisco Public Library
Digitizing Sponsor: California State Library Califa/LSTA Grant
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Text Appearing Prior to Image:
arrow ravine, which we followed in a northeast direc-tion for a mile and a half, and then passed over a higher ridge—a spur of the Wet mountains—covered with oak bushes, to one more ravine, on the sides of which we were gladdened by thesight of a herd of cattle and horses feeding, and have been soon in the camp of a trader from NewMexico returning from Fort Laramie. From him we discovered that the two streams and ravinesare called the Granaros, by the Spaniards. Passing over yet another sharp ridge, we descended intwo miles to the fine small valley of the Greenhorn, a stream of two feet in width and 3 or fourinches in depth, which is bow completely diverted from its natural channel and employed in irrigatingthe lands of the six New Mexican households who reside at and constitute the present population ofthe place. They plant a handful of acres of corn and of wheat, of beans and of water-melons—in all, anarea equal to that of the farm of a little eastern farmer, who cultivates his personal fields. Two hun-
Text Appearing Soon after Image:
mx .UOP cnc= 7C CD r~est HUERFANO BUTTE. 35 dred fanegas of wheat and fifty of corn, with the requisite amount of beans and melons, constitutethe biggest total crop of this valley. They have a few cattle and horses—the latter very poor.The homes are constructed of adobe or sun-dried brick, with out windows or other openings than a singledoor, in entering which a man of six feet in stature should bow extremely low. In front of each property isenclosed a little space of ground, twenty yards in width, by poles planted in the earth and lashedto horizontal strips by rawhide thongs. These picketed yards are intended as a protectionagainst Indians—the Utahs possessing killed some of their cattle final year, destroyed their grain,and stolen their horses. Corrals are attached to the backs of their houses, built in all respectslike the front enclosures. With one exception all the homes of this settlement are joined, and atall man can reach to the roof, on which the whole population, not absent in the fields, asreportsofexplora02unit_
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Blackened steel stair with stainless treads
Image by Caliper Studio
Center stringer convenience stair connects two office floors in Starret Lehigh building. Stringer and slab edge assemblies are blackened. Twenty four stainless steel treads are welded to the stringer kind a continuous ribbon. 1 1/four" diameter handrail posts are continuous bent "C" shapes that wrap around treds and are welded to stringer. Stair will be delivered to site in 1 piece [24′ extended 3′ wide 3′ tall @ 2000lbs].
Design by Diller Scofidio + Renfro
Detailing, Fabrication and Installation by Caliper Studio. Caliper Studio engaged Eckersley O’Callaghan & partners for engineering services.