Welding fills a large place in boiler work, but it is that of the edges of plates chiefly, predominating over that of the bars and rods of the smithy.
But in so welding together the scattered centres and binding them to the papacy, Boniface seems to have been actuated by simple zeal for unity of the faith, and not by a conscious political motive.
Welding is much more common in the first than in the second, furnace flues being always welded and stand pipes frequently.
The Mersey Iron-Works guns are of wrought-iron, and are forged solid like steamboat-shafts, or hollow by laying up staves into the form of a barrel and welding layers of curved plates upon them until the whole mass is united.
This is set upon end at a welding heat under a steam-hammer and "upset" into a tube which is then recessed in a lathe on the ends so as to fit into other tubes.
Also, weldingone piece of iron to another to lengthen it.
Also, a machine with which the hercules facilitates the welding of anchors.
The earth will be smitten with a curse, unless there is a welding link of some kind or other, between the fathers and the children, upon some subject or other, and behold what is that subject?
Double shear steel is obtained by breaking the tilted bars in two, and welding these into a compound bar.
By strong pressure and exposure to a welding heat, a certain degree of compactness may be given to the product.
The steel is also softened down by this process, probably from the expulsion of a portion of its carbon during the welding and subsequent heats; and if these be frequently or awkwardly applied, it may pass back into common iron.
The welding is performed upon a mandril introduced after each heat; the middle of the barrel being first worked, while the fillets are forced back against each other, along the surface of the mandril, to secure their perfect union.
Mr. Perring abated this evil by using bars of the whole breadth of the shank, and placing them right over each other, hooping them and welding them together at two heats into one solid mass.
It has been found preferable to all other fuel for case-hardening iron, tempering steel, forging horseshoes, and welding gun-barrels.
The steel facing is applied bywelding in the same manner.
Six inches of the barrel at either end are left open for forming the breech and the muzzle by a subsequent welding operation; the extremity put into the fire being stopped with clay, to prevent the introduction of cinders.
Cast steel, indeed, made from a less carburetted bar steel, would be susceptible of welding and hammering at a higher temperature; but it would require a very high heat for its preparation in the crucible.
The smith, in welding together two pieces of iron, heats both and then hammers them together into one piece.
The defect of much teaching in children's classes is that the teacher does not properly provide for the welding together of the new and old.
In this welding process we desire to determine how far an actual concentration may take place between school studies and the home and outside life of children.
Welding would be the ideal connection but it is not always practicable.
Welding is soldering, according to the definition of the term.
This is found in the modern electric welding process.
Patching and welding were the answer to the problem they presented.
Electric and acetylene welding is not a complicated art in the hands of skilled men; for patching a hole, or filling the cavity of a great crack in a cylinder, say by electric welding, may be compared to a similar operation in dental surgery.
It was then decided to use welding and patching on the vessels.
The plan had not then succeeded so well as to come into general use, in consequence of the cheapness of the usual mode of welding by hand labour, combined with some other difficulties with which the patentee had to contend.
In this difficulty, the contractors resorted to a mode of welding the gun barrel, for which a patent had been taken out by one of themselves some years before this event.
It was then placed in a furnace, and being taken out when raised to a welding heat, a triblet, or cylinder of iron, was placed in it, and the whole was passed quickly through a pair of rollers.
But we find that in a transformer secondary we can use very large section of conductor, even (as in welding machines) 12 to 15 square inches solid copper, without meeting appreciable difficulty from eddy currents in it.
A striking instance of this latter fact was developed in conveying very heavy alternating currents of a very low potential a distance of about three feet by copper conductors, the current being used in electric welding operations.
But Those who sent out the great six Teachers have a hand to play here: they have to put the welding process through upon their own designs.
For sixty-five years he and his predecessor had been welding the empire into one: now, that labor had been so far accomplished that what dangerous times lay ahead could hardly imperil it.
Neither in passion nor in submission, pure and simple, is there joy of surrender or welding communion.
He contemplated, not an analysis of one system, but a welding of analyses of all systems!
The book had to be classed as Political, Social, Economic, or some welding of all three descriptions; and Rose was never the man to approach a subject of this kind with his mind already made up.
Arc welding makes use of the flame produced by the voltaic arc in practically the same way that oxy-acetylene welding uses the flame from the gases.
They may be prepared by the operator in many cases or may be secured from the makers of welding apparatus, the same remarks applying to their quality as were made regarding the welding rods, that is, only the best should be considered.
The form of torch usually employed is from twelve to twenty-four inches long and is composed of a handle at one end with tubes leading from this handle to the "welding head" or torch proper.
The fumes from brass and bronze welding are very poisonous and should not be breathed.
The amount of this last separation must be determined by the shape and proportions of the parts in the same way as would be done for any other class of welding which heats the parts to a melting point.
At present the oxy-acetylene process is the most universally adaptable, and probably finds the most widely extended field of usefulness of any welding process.
The simplest welding apparatus is a resistance in series with the arc.
Goggles for protection against this light and the heat that goes with it may be secured in various tints, the darker glass being for welding and the lighter for cutting.
Hardening and tempering can be done by clamping the work in the welding dies and setting the control and time to bring the metal to the proper color, when it is cooled in the usual manner.
The difficulties which are encountered are as follows: In the case of brass or zinc, the metals will be covered with a coat of zinc oxide before they reach a welding heat.
They have the effect of welding the large school into something like a homogeneous unit.
When reheated to a welding heat, they are rolled out into flat bars or round rods, in a variety of sizes, so as to be suitable for the consumer.
All that has to be done to render their occurrence next to impossible is to give to the surfaces we desire to unite by welding a convex form as represented in Fig.
It was that the chief cause of failure in the links of chain cables arose, not so much from their want of tenacity, or from the quality of the iron, but from some defective welding in the making of the links.
If by any want of due care on the part of the smith, the surfaces be concave or have hollows in them, the scoriae will be sure to lurk in the recesses, and result in a defective welding of a most treacherous nature.
I therefore instituted a series of experiments which yielded conclusive evidence upon the subject; and which proved that defective welding was the main and chief cause of failure.
At a very early period of my employment of the steam hammer, I introduced the system of stamping masses of welding hot iron as if it had been clay, and forcing it into suitable moulds or dies placed upon the anvil.
The welding together was again the work of many civic-minded men and women, and Frank Nelson was the fire which fused the different parts into a unity.
In February, 1878, a conference was held at Toledo for the purpose of welding the various political organizations of workingmen and advocates of inflation into an effective weapon as a single united party.
The dramatic form in which he wrote furnished him a better medium for reaching a complete welding together of the external and spiritual side of his subject-matter.
The originality of the pre-Raphaelites grew out of their welding of romantic, classical, and mediaeval elements, tempered in each case by the special mental attitude of the poet.
A bundle of pieces of wrought iron to be worked over into bars or other shapes by rolling or hammering at a welding heat; a pile.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "welding" in a variety of sentences. We hope that you will now be able to make sentences using this word.
