. Ingegnere americano e giornale ferroviario . 00031,30032.00031.000 38- 880 38- 78037-1.920 39- 440 73.50 44.9073.29 44.9072.60 35.5073.90 1-24 I0-14 1! Is 23-14 Clark. 170.... C. E N. W.. 27,345 i 2 Nota.-D. M. E N.. 11,591. Aveva le porte originali ri-sistemate a Proctor. D. M. & N., 8,930, aveva lo stile standard delle porte utilizzate sulle automobili in acciaio. Tempo : Fiera. Le vetture SUMMERS richiedevano un solo uomo per lo scarico come contro quattro e otto sulle altre vetture; inoltre, il tempo totale richiesto per lo scarico era molto meno, soprattutto sulle cariquie con le porte ad aria, le prestazioni di chi era re

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. American engineer and railroad journal . 00031, 30032.00031.000 38- 880 38- 78037-1.920 39- 440 73.50 44.9073.29 44.9072.60 35.5073.90 1-24 I0-14 1! Is 23-14 Clark. 170.... C. & N. W.. 27, 345 I 2 Note.—D. M. & N.. 11, 591. had original doors re-arranged at Proctor. D. M. & N., 8, 930, had standard style of doors used on steel cars. Weather : Fair. Summers cars required only one man for unloading as againstfour and eight on the other cars; also that the total time re-quired for unloading was very much less, especially on the carequipped with the air operated doors, the performance of whichwas remarkable.The general arrangement of the mechanism for operating the site end of the shaft, as shown. When the doors are wide openthe cranks to which the door chains are attached are on thedead centers in the lower position. When the doors are closedthere is a stop for the crank at the left just beyond the deadcenter, as shown. This device, which is patented, is simple andeffective and should not easily get out of order. a IE. GENERAL ARRANGEMENT OF MECHANISM FOR OPERATING DROP DOORS BY AIR ON SUMMERS CARS. 370 AMERICAN ENGINEER AND RAILROAD JOURNAL. GOOD PLANER RECORDS. Splendid work is being done at the Toronto shops of the GrandTrunk Railway on some frog and switch planers, built by TheJohn Bertram & Sons Co., Ltd., Dundas, Ontario. These planersare identical with the Niles-Bement-Pond planers, specially de-signed for this class of work. An important feature in connection with the work on thesemachines is the fixtures for setting and holding the rails rigidly.These were designed by the foreman of the shop, Mr. Garden.The frog planer has a table 16 ft. long and in nine hours fin- THE SUPPING POINT OF ROLLED BOILER TUBEJOINTS.* When a boiler tube has started from its original seat the fitmay be no longer continuous at all points and a leak may result, although the ultimate holding power of the tube may not be im-paired. A small movement of the tube under stress is then theprel

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1890
• booksubjectrailroadengineering