. Electrical world. d reinforced hard rubber. This system is found to doaway entirely with the trouble experienced sometimes by the acidslopping and siphoning over the sides of the jars. Ordinarily thecover is sealed in with a compound which makes the jar practicallyacid-tight, but in some special types the jars are deeper and thecovers set in lower down, without sealing. The nine-plate cell shownin the accompanying engraving weighs thirty-two pounds and hasa capacity of thirty-six amperes for four hours. Electrical Exhibits at the St. Louis Exposition. The office of Electrical World and Engin
. Electrical world. d reinforced hard rubber. This system is found to doaway entirely with the trouble experienced sometimes by the acidslopping and siphoning over the sides of the jars. Ordinarily thecover is sealed in with a compound which makes the jar practicallyacid-tight, but in some special types the jars are deeper and thecovers set in lower down, without sealing. The nine-plate cell shownin the accompanying engraving weighs thirty-two pounds and hasa capacity of thirty-six amperes for four hours. Electrical Exhibits at the St. Louis Exposition. The office of Electrical World and Engineer is elegantly andcomfortably furnished for the reception of visitors. Complete filesof its technical journals and a library of electrical books publishedby the McGraw Publishing Company are at the service of visitingengineers. A register is kept in which it is intended to have acomplete record of all those interested in electrical industries who goto the Exposition. Comfortable and cosy seats and lounges are pro-. FIG. I.—BOOTH OF ELECTRICAL WORLD AND ENGINEER. vided for any who wish to read and facilities are at hand for cmrespondence. The booth is below the office gallery of the Electric^Department, and its appearance may be noted from the accom-panying illustration. It is a great centre and rendezvous for elec-trical visitors at the Exposition. The Burdette-Ro\vntree Manufacturing Company has an exhibitof automatic electric dumbwaitersat the northwest entrance of theElectricity Building. The exhibit consists of two complete installa-tions of push control electric dumbwaiters, one running at a speedof 150 feet per minute and the other at nearly 600 feet per min-ute. Both cars run from the floor to the highest part of the roofof the building. The high speed car is enclosed in glass and con-tains incandescent lamps that light up automatically when the car isin motion. The most interesting part of this exhibit is the automaticfeature that makes the installation what the man
Size: 1694px × 1474px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
