Oil Gas
in chemistry, a gas of high illuminating power, obtained by dropping oil on substances heated to redness and collecting the gaseous product. of strong sulphuric acid.
Only in Collier's New Encyclopedia
Single-source entries: O (10)
These 18 listings are so strange that each appears in only one of the 7 encyclopedias we compared. They include such classics as Oil Gas, Oil of Vitriol, Oil Sink.
Oil of Vitriol
the common name manufactures; porcelain, paper, chemicals, beet-root sugar, woolens, cottons, and lace (at Chantilly) were also made. Capital, Beauvais. During the World War (1914-1918) the Department was devastated by the German armies and repeatedly fought over by the opposing forces.
Only in Collier's New Encyclopedia
Oil Sink
The depression around the pivot holes for the purpose of furnishing a supply of oil and also retaining it at the pivots. When the oil sink is in metal which is not gilt and is blackened, if they should be polished out at the time of cleaning it will probably be at the expense of the fresh oil. Pivots should come well through the plate into the sink; if they do not the sink should be deepened. Oil sinks should be deep rather than wide, and well polished. Saunier says that care should be taken that the internal faces of the holes in which the shoulders of the axis rest, as well as the external faces, when these holes are provided with end-stones, are hollowed in tallow drop form, with a very slight interval between the bottom of the hole and the end-stone. When these precautions are taken, the oil, if not present in too great a quantity, will neither spread nor run down the axis, but will remain partly in the oil sink and partly attached to the shoulders of the axis, and in the case of pivot holes with end-stones, as the oil is exhausted, that spread over the end-stone will be drawn into the pivot hole through capillarity.
Only in American Watchmaker and Jeweler
Oilcake
. See Cotton
Only in Aiton's Encyclopedia
Oiler
A fine steel wire, mounted in a wooden or bone handle and used for applying oil to the mechanism of a watch or clock. Fig. 244 in an oiler, made with 14k. gold tip, and has a collet which keeps the point from touching the bench and also prevents oiler from rolling.
Only in American Watchmaker and Jeweler
Oilstone
A hard, gritty stone upon which oil is used for sharpening tools. The Arkansas and Washita stones are the two principal American grades, the former being the harder and finer. A mixture of one part alcohol and two parts glycerine will be found a much better lubricant for the oilstone where small tools, such as watchmakers use, are sharpened, than will the ordinary oils used. Oilstones often become so saturated with oil as to be almost useless and are often abandoned on this account. Such a stone, if soaked in benzine for a few days, will come out as good as new.
Only in American Watchmaker and Jeweler
Oilstone Dust
A preparation of powdered oilstone, used for smoothing pivots and other steel parts.
Only in American Watchmaker and Jeweler
Ointment
a soft, unctuous substance used for smearing or anointing; an unguent.
Only in Collier's New Encyclopedia
Ointment, Witches'
It was believed in medieval times that all the wonders performed by witches-i.e., changing themselves into animals, being transported through the air, etc.were wrought by anointing themselves with a potent salve. As ointments are still used in Oriental countries as a means of inducing visions, it is possible that something of the kind may account for the hallucinations which the witches seem to have experienced. Lord Verulam says, The ointment, that witches use, is reported to be made of the fat of children, digged out of their graves; of the juices of smallage, wolfebane, and cinque foil, mingled with the meal of fine wheat : but I suppose that the soporiferous medicines are likest to do it, which are hen-bane, hemlock, mandrake, moonshade, tobacco, opium, saffron, poplar leaves, etc." 66
Only in An Encyclopaedia of Occultism
Oise
a department of France; separated from the English Channel by Seine-Inférieure; area, 2,272 square miles; pop. about 435,000. The principal rivers are the Oise, a tributary of the Seine, 150 miles in length, with the Aisne and Therain, affluents of the Oise. The soil is in general fertile, and agriculture advanced. The products are the usual grain crops, with an immense quantity of vegetables, which are sent to the markets of the metropolis. Before the World War there were extensive iron
Only in Collier's New Encyclopedia
Ojibways
. See Chippewas
Only in Aiton's Encyclopedia
Oka
an important navigable river of central Russia, the principle affluent of the Volga from the S., rises in the government of Orel, and flows in a generally N. E. direction, and joins the Volga at Nijni-Novgorod, after a course of 706 miles. Its basin comprises the richest and most fertile region of Russia. The principal towns on its banks are Orel, Bielev, Kaluga, Riazan, and Muron; the most important affluents are the rivers Moscow, Kliasma, Kliasma, and Tzna. During spring the Oka is navigable from Orel to the Volga; but in summer the navigation is obstructed by sandbanks.
Only in Collier's New Encyclopedia
Okapi
. See Giraffe
Only in Aiton's Encyclopedia
Okeechobee Lake
a large shallow lake in Southern Florida; about 40 miles in length by 25 in breadth, and with a maximum depth of 12 feet. Its waters are discharged through the Ever- Olean, New York to Bayonne, New Jer-glades, but there is no appreciable outlet 1 and a drainage company has been reclaiming land since 1881.
Only in Collier's New Encyclopedia
Okey Sisters
(See Spiritualism .)
Only in An Encyclopaedia of Occultism
Okhotsk
SEA OF, an extensive inlet of the North Pacific Ocean, on the E. coast of Russian Siberia, nearly enclosed by Kamchatka and the Kuriles and Saghalien. It is little navigated. On its N. shore, at the mouth of the Okhota, is the small seaport of Okhotsk.
Only in Collier's New Encyclopedia
Oklahoma
UNIVERSITY OF, a tract set apart for Indian tribes by Act of Congress, June 30, 1834. On April co-educational, non-sectarian institution in Norman, Okla.; founded in 1892; re- 22, 1889, a proclamation was issued by the President opening ported at the close of 1919: Professors up 1,900,000 acres and instructors, 150; students, 3,683; of land for settlement. There was a great rush of settlers and speculators, president, S. D. Brooks, LL.D. the city of Guthrie coming into existence
Only in Collier's New Encyclopedia
Okmulgee
a city of Oklahoma, the in one day with a population of 10,000. county-seat of Okmulgee co. It is on the Other lands have been opened from time St. Louis and San Francisco railroad. to time. The first Territorial governor It is the center of a rich coal, oil, and was appointed in 1890. In September, gas region, and its industries include the 1891, the Iowa, Sac, Fox, and Pottawamanufacture of window glass and bottomie lands of 1,000,000 acres were tles. It has a hospital, excellent public opened; in April, 1892, the Cheyenne and schools, and an old council house of the Arapahoe lands of 3,000,000 acres; on Creek Indians. Pop. (1910) 4,176; Sept. 16, 1893, the Cherokee Strip of (1920) 17,430. 6,000,000 acres; on May 23, 1895, a small
Only in Collier's New Encyclopedia