54 résultats
19402497New Jersey 1940. Photographs measure 4.5 x 3.25" -- preserved in a string-tied Album. ADDED: blueprint of an array of 5 radio towers. Unusual vernacular photo album which documents in painstaking detail the construction of an array of five 5 New Jersey radio towers. While the location of the site has not yet been ascertained the photographs in the present album were clearly taken by one of the engineers / contractors. Highly curious. unknown books
191615490New Haven Connecticut : Roger Sherman Studio 1916. Photograph Mounted on Thick St. Near Fine. An original photograph very large image is 13 1/2 x 10 1/2 inches on a mount with total size of 16 3/4 x 13 3/4. Great tonality. Taken in front of Winchester Hall at Yale part of the Sheffield School of Engineering. The building is no longer standing although we have included a printout of the building as it once appeared. Lots of great instruments with 4 on tripods surveying sticks axe model of a bridge span etc. in the photograph with the students. Several equations written in chalk on the pillars of the building. Photographs this large are very scarce on the marketplace. "FUNDAMENTALS" on the street in front. Photograph Mounted on Thick St. Roger Sherman Studio unknown books
41435South Norwalk CT: Nash Engineering Co n. d. Ca. 1923. Black flexible dark-brown calf Sieber System binder yapp edges gilt stamped to bottom edge of front cover. Moderate wear to binding rubbing to leather at edges some scuffing. Minor bowing to photos and covers 1 laid-in photograph more significantly edge-worn and age-toned. Withal a VG example. 43 b/w photographic leaves 5 laid in. 48 original silver-gelatin photos 7.25" x 9.5" exhibiting the factory assembly floor testing area wide range of liquid ring vacuum pumps and the numerous industries commercial buildings and homes in which they were installed. Photographs all with typed identification information & captions on verso a couple with stamps at lower fore-edge of image. Oblong format: 8" x 11" <br/><br/>This exceptional salesman sample photo album for the Nash Engineering Company in South Norwalk CT provides an excellent visual history of this pioneering producer of liquid ring vacuum pumps. Although their vital importance to the modern age remains mostly unrecognized the liquid ring pump revolutionized water heating electric power and sewage systems pulp and papaer production and proved absolutely vital in gas extraction and many other general industrial applications in the 20th century. These unsung workhorses are essential to modern physical plant systems. Nash 1852-1923 invented the liquid ring vacuum pump and was the holder of over 100 US patents for pumps engines water meters and other equipment. He founded the Nash Engineering Company in 1905 and by 1914 filed the US patent for the liquid ring vacuum pump which he had first employed in the reinforced concrete factory he built at Wilson Point Road shown here in the photos. The photos also show the testing department test plant vacuum pumps in the storehouse and the test room switch board. The photos lavishly illustrate many pumps with varying horsepower and applications such as those to maintain condenser vacuum on large steam turbine generators those used on paper machines to dewater paper pulp slurry and extract water from press felt fabrics as well as those that could be applied to molded pulp products. Of particular interest are the many photos of pumps installed for physical plant systems in such buildings as the Sherman Hotel Chicago IL; boiler room of the Ohio River Edison Company; Price Brothers COmpany Ltd. Quebec Canada; Chatsworth Apartments 72nd & Riverside NY; Cunard Building 25 Broadway NY and many others. Of interest are the photos of the Nash display at the Industrial Exposition Grand Central Palace NY in 1914 as well as the award granted to the Nash Engineering Company by the War Department during World War I for their material assistance in obtaining the victory of the allies. No institutional holdings located on OCLC. Rare. Nash Engineering Co hardcover books
189547674Philadelphia.: G. Wm. Baist. No date. Ca. 1895. Broadside map handcolored lithograph 39 1/4 x 27 1/4 inches on sheet 41 1/4 x 28 3/4 inches folded. A few extra creases loss to upper left margin just touching neatline couple of other chips and tears in margin one just entering the map area blank at left centre. Overall clean and crisp very good condition. A very attractive softly handcolored map showing the growing city of Everett shortly after its incorporation in 1893 and the completion of the Great Northern Railroad. Additions mapped include Riverside Addition at the south end of the map Bay View Addition and Church Loveland Lamoure's Addition at the west and Church & La Moure's Addition at the north end. The Hotel Monte Cristo and many industries are marked. The Great Northern Railroad enters Everett from the east and the railroad along the Puget Sound is the Seattle and Montana Railway. An inset map at the upper left shows Western Washington the inset map at upper right shows Everett and vicinity. A large and handsome map of great historical interest. . G. Wm. Baist. unknown books
