The obstacles which have hitherto prevented large success in many of the numerous devices for charging air with the vapors of light flui'd hydrocarbons have chiefly arisen from the liability of such vapors to condense at low temperatures and obstruct the pipes used to convey the mixed air and vapors to the burners, and also the small amount of such vapors absorbed by air in cold weather. To obviate the latter difficulty, heaters have been employed, but the liability to condense, still remains. The invention we now are called upon to describe, seems to have surmounted both the above named obstacles. Although the engraving which illustrates the device is that of a chandelier, the invention is equally applicable to a bracket, or any other style in which the ordinary gas burners are mounted. The principle of its operation is exceedingly simple. A is a pipe through which pure air is forced by means of the reversed motion of a common wet gas-meter impelled by a weight and the necessary gearing. This pipe is so formed that the air in its passage is brought directly over the burner at the bend of the pipe and heated thereby. It then passes on and issues in small streams through the perforations at B, and rises thus finely divided through a stratum, C,of fluid hydrocarbon contained in an air-tight vessel, D. Thus volatilizing the fluid and becoming charged with its vapor, it passes into the open mouth of another tube, E, rising above the level of the fluid in D, and so on to tho burner. When argaad burners are used, disks of mioa, P, are at- tached to the tube, A, at the bend directly over the burner and brought down to about one eighth of an inch, from the tops of the chimneys. The inventor claims that this arrangement stops the rapid draft of air in the chimney, and enables the incandescent carbon which is the light giving agent in all flames, to remain longer in a state of incandescence, thereby rendering the flame larger and increasing its luminosity. In the ordinary bracket these disks are not used. Instead, the pipes are formed into an ornamental knot at the point where they turn over the burner. The pipes are furnished with wire gauze between the liquid and the burner to prevent any chance of the flame running back. The inventor assures us that gas can be made by this process at a cost of 75 cents per 1,000 cubic feet and of a light giving quality far superior to coal gas, and as the liquid is confixed completely from contact with surrounding atmosphere in the process is perfectly safe. Country houses can, by having their chandeliers constructed on this principle, make theirown gas and without the use of an expensive gas machine. The same method seems equally applicable to the enriching oi ordinary gas; and probably a considerable saving might bo made by its use in rural towns where gas works are small the price high, and the quality of the" gas furnished none of the best. Patented through the Scientific American Patent Agency May 25,1869. Further information may be had by addressing C. F. Dun-derdale, 90 Wall street, N. Y., from whom County and State rights may be obtained. Pacific Railroad Time Table The following statement of time and distances is given by the Western Railroad Gazette: Miles. Hours. New York to Chicago, 111................................... Sill 36J5 Chicago to Omaha, Nebraska............................... 491 24 Omaha to Bryan..............................................S58 43 Bryan to Ozden, Utah.......................................2:ffl 10 Ogden to EDco, Nevada, via Central Paeific K.R.........218 12% Elko to Sacramento, Cal., via Central PaciflcB. R....... 465 31 Sacramento to San Francisco, via Western Pacific E. K. 117 SlA 3,353 1BIJS Thus a total distance of 3,353 miles is made, according to the present schedule time, in 6 days and 17-J hours, actual time, by a traveler's watch, from which we deduct 3 hours, difference of time, when going West, leaving the apparent time consumed in making the trip 6 days and 14 hours. At San Francisco the mails will connect with the various steamship lines running on the Pacific, and may be landed at Honolulu in 9 days from that city, or 15J days from New York. They can reach Japan in 19 days from San Francisco, or 25J days from New York, or 33 to 34 days from Great Britainthus beating the British mails sent via Suez, three to four weeks. The trip between Yokohama, Japan, and either Hong Kong or Shanghai, is readily accomplished by the Pacific Mail steamships in from five to six days, which, added to the time in reaching Japan, will give the through time necessary to reach either of the above-named ports of China. The mails for Australia, it is thought, will hereafter go via San Francisco, as the Australian and New Zealand Steamship Company intend transferring the terminus of their line, which has been running from Sydney to Panama, so as hereafter to run from Australia to Taluti, thence to Honolulu, and thence to San Francisco, making 28 days schedule time, which will give us monthly mail to Australia in 34 or 35 days through time. Important Decision about Patents--Rejected Cases The Commissioner of Patents, Hon. S. S. Fisher, has made an important decision, involving a point of much interest to a large class of inventors, as well as to the public generally. Prior to the act of March 2, 1861, rejected applicants were permitted by law to withdraw their applications, and receive back two thirds of the fee. This practice was abolished by the act referred to. Many inventors now seek to revive these applications, claiming that the rejection was through the faulty or imperfect consideration of the Bureau, and hoping for better success under a changed administration. In many cases numerous patents touching these same inventions, or points therein, have since been granted, which could only be re* garded as infringements, if the rejected application was to be reopened and granted as an original case. The Commissionei has heretofore decided that when an application is not renewed within two years after withdrawal, its continuity is broken, The decision, which is a very able one, is printed in full in another column. A BTTOTED cat, placed upon Btxawberry beds, is said to effectually falre away birdg.
This article was originally published with the title "Improved Air Carbureter or Gas Chandelier Apparatus"