Appleton's dictionary of machines, mechanics, engine-work, and engineering . Carcel s invention left only unimportant points connected with the works and the pump to his suc-cessors, to which the skill of others has been applied. Figs. 2489 and 2490 present a section of Carcelalamp and its various parts, with Penofs improvements. The chief parts of the lamp are arranged asfollows: The case for the works B and the space A for the stock of oil, form the foot of the lamp. Thestem of the column contains only the ascending tube b, which separates above (over the capital) into aforked appendage, (cr
Appleton's dictionary of machines, mechanics, engine-work, and engineering . Carcel s invention left only unimportant points connected with the works and the pump to his suc-cessors, to which the skill of others has been applied. Figs. 2489 and 2490 present a section of Carcelalamp and its various parts, with Penofs improvements. The chief parts of the lamp are arranged asfollows: The case for the works B and the space A for the stock of oil, form the foot of the lamp. Thestem of the column contains only the ascending tube b, which separates above (over the capital) into aforked appendage, (crutch,) upon which rests the burner with its two concentric tubes ee. The burner LAMPS. 173 and the ascending tube form, therefore, a space which is connected with A by means of the pump. Thislatter is a so-called priest-pump, and is more simply represented in Fig. 2491. The space x is closedat the top by a piece of elastic cloth or leather, in the middle of which, whenit is considered as a piston, the piston-rod is fixed. By its upward and down-ward motion, an alternate expansion and contraction of x is effected. In thefirst case the valve s opens, and oil enters x from r r; in the other case,through the valve s, oil passes from x, and is raised in the tube t. Themotion of the cloth or leather acts in short in the manner of the cheeks andmuscles in drinking and blowing. To meet the unavoidable obstructionswhich would result from the presence of impurities in the oil, it is all madeto pass, whilst still in A and before entering the pumps, through a metallicsieve with fine holes q, which surrounds the whole of the front part, includingthe entrances to the valves below. The qu
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
