How to use India-rubber in a sentence
India-rubber goods are manufactured, and wine is made.
There are gutta-percha, india-rubber and other trees and plants yielding gums, the banana, mango, and many other trees and plants yielding fruits; and various trees and plants yielding nuts, spices, oils and medicines.
It varies somewhat in consistency, being sometimes soft, elastic and sticky; often closely resembling india-rubber; and occasionally hard and brittle.
A hundred or more jars were coupled in series, the cathodes of one to the anodes of the next, and were so arranged that with the aid of side-pipes with leaden connexions and india-rubber joints the electrolyte could, once daily, be made to circulate through them all from the top of one jar to the bottom of the next.
The surface must therefore act like a sheet of india-rubber when extended both in length and breadth, that is, it must exert surface-tension.Advertisement
The tension of the sheet of india-rubber, however, depends on the extent to which it is stretched, and may be different in different directions, whereas the tension of the surface of a liquid remains the same however much the film is extended, and the tension at any point is the same in all directions.
Penaud also substituted india-rubber under torsion for the whalebone and clock springs of the smaller models, and the steam of the larger ones.
The motive power was india-rubber in the condition of torsion; the propeller, a screw.
India-rubber springs were made to extend between the inner posterior parts of the wings and the frame, corresponding to the backbone of the bird.
A vertical movement having been communicated by means of india-rubber in a state of torsion to the roots of the wings, the wings themselves, in virtue of their elasticity, and because of the resistance experienced from the air, twisted and untwisted and formed reciprocating screws, precisely analogous to those originally described and figured by Pettigrew in 1867.Advertisement
Other industries of a semi-chemical character are candle-, soap-, glue-, and perfume-making, and the preparation of india-rubber.
The ballgame of the Mexicans, called tlachtli, was, like tennis, the pastime of princes and nobles; special courts were built for it, and the ball of india-rubber (perhaps the first object in which Europeans became acquainted with this valuable material) might not be touched by the hands, but was driven against the walls by blows of the knee or elbow, shoulder or buttock.
The card nearly floats in a bowl filled with distilled water, to which 35% of alcohol is added to prevent freezing; the bowl is hermetically sealed with pure india-rubber, and a corrugated expansion chamber is attached to the bottom to allow for the expansion and contraction of the liquid.
In this way the india-rubber tree (Ficus elastica), for example, and many other tender plants may be increased with the aid of a brisk bottom heat.
Cements such as marine glue are solutions of shellac, india-rubber or asphaltum in benzene or naphtha.Advertisement
In the north-east of Assam and in the north of Upper Burma the Ficus elastica, a species of india-rubber tree, is found.
The most valuable of the forest flora are the lianas, notably Landolphia florida, which yield the india-rubber of commerce.
By agreement with France and Portugal, a common tariff (6% on most goods imported, to% on the export of ivory and india-rubber, 5% on other exports) was adopted by these powers and the Congo Free State.
There are valuable vegetable dye-stuffs, medicinal plants (especially sarsaparilla, copaiba and ipecacuanha), cabinet and building timber (mahogany, &c.), india-rubber, tropical fruits (especially bananas), and various palms; fish are economically important - the name Panama is said to have meant in an Indian dialect " rich in fish " - and on the Pacific coast, oysters and pearl " oysters " (Meleagrina californica) - the headquarters of the pearl fishery is the city of San Miguel on the largest of the Pearl Islands, and Coiba Island.
Chips and cuttings are ground up and mixed with india-rubber to form kamptulicon floor-cloth, or "cork-carpet."Advertisement
The vegetation on the western side of the island is much less dense, often appearing as scattered clumps of trees on savannah-like plains rather than continuous forest; while in the south-west, where the rainfall is very scanty, the vegetation is largely of fleshy-leaved and spiny plants - aloes and cacti (the latter introduced), with several species of Euphorbia, as well as numerous lianas, one of which (Intisy) yields india-rubber.
About 1870 india-rubber began to be exported in considerable quantities, and cattle, rubber and hides continue staple products.
There are several joints in general use for the best class of work which are formed with the aid of india-rubber rings or collars, any expansion being divided amongst the whole number of joints.
The bowler delivers his bowl with one foot on a mat or footer, made of india-rubber or cocoanut fibre, the size of which is also prescribed by rule as 24 by 16 in., though, with a view to protecting the green, Australasian clubs employ a much larger size, and require the bowler to keep both feet on the mat in the act of delivery.
In the rubber ring joint an india-rubber ring is used; slightly less in diameter than the pipe.Advertisement
In the specification of the patent applied for on the list of July 1877 he showed a sketch of an instrument which consisted of a diaphragm, with a small platinum patch in the centre for an electrode, against which a hard point, made of plumbago powder cemented together with india-rubber and vulcanized, was pressed by a long spring, the pressure of the carbon against the platinum disk being adjusted by a straining screw near the base of the spring.
The device employed for this purpose is known as the water-packer, and consists in its simplest form of an india-rubber ring, which is applied between the tubing and the well-casing, so that upon compression it makes a tight joint.
Here the slave trade was longer maintained than anywhere else on the Nest African seaboard; since its extirpation, palm oil and india-rubber have been the main objects of commerce.
The leading industries are the crushing of palm-kernels and linseed and the manufacture of india-rubber, phosphates, starch, nitrate and jute.
Near the station, below the town, are factories of india-rubber and calcium carbide.
Among other important articles of domestic industry are tobacco and cigars (manufactured mainly in bond, within the free harbour precincts), hydraulic machinery, electro-technical machinery, chemical products (including artificial manures), oils, soaps, india-rubber, ivory and celluloid articles and the manufacture of leather.
The best known of these are sarsaparilla, ipecacuanha, cinchona, jaborandi and copaiba; vanilla, tonka beans and cloves; Brazil-wood and anatto (Bixa orellana); india-rubber and balata.
India-rubber is derived principally from the Hevea guayanensis, sometimes called the Siphonia elastica, which is found on the Amazon and its tributaries as far inland as the foothills of the Andes.
The varied uses of india-rubber in modern times, however, have given them a greatly enhanced importance and value.
Of the total exports of this group (1905) very nearly 90% was of india-rubber, which percentage was reduced to 85 in the following year.
A and B are pear-shaped glass vessels connected by a long narrow india-rubber tube, which must be sufficiently strong in the body (or strengthened by a linen coating) to stand an outward pressure of 1 to 2 atmospheres.
It can be considerably shortened, the two vessels A and B brought more closely together, and the somewhat objectionable india-rubber tube be dispensed with, if we connect the air-space in B with an ordinary air pump, and by means of it do the greater part of the sucking and the whole of the lifting work.
Subordinate products for exports include cutch dye, caoutchouc or india-rubber, cotton, petroleum and jade.
Almost all industries are represented; chief among them are machine-building, the manufacture of india-rubber, linen, cloth, hardware, chemicals, tobacco, pianos, furniture and groceries.
Helsingborg ranks among the first manufacturing towns of Sweden, having copper works, using ore from Sulitelma in Norway, india-rubber works and breweries.
The coins are then gripped by a pair of india-rubber driving wheels, which force them past the rim of a thin disk with notches in its edge to fit the coins.
The induction coil is carried upon the end of one portion of the test bar, and when this portion is suddenly drawn back the coil slips off and is pulled out of the field by an india-rubber spring.
The most simple of these is an indiarubber ball pressed upwards into the narrow of the bottle neck by the force of the gas contained in the water; and in another system a glass ball is similarly pressed against an india-rubber collar inserted in the neck of the bottle.