The consequence was, that Mrs. Errington went about among her Whitford friends elaborately contradicting and denying "the innuendos spread abroad about her daughter-in-law by certain presumptuous and gossiping persons;" and thus brought the suggestion before many who would not otherwise have heard of it. All which, of course, surprised and annoyed Algernon very much, who had, naturally, not expected anything of the sort from his mother's well-known tact and discretion. Well, you thought he was offended with you, or something of the sort. It's all the same, returned Castalia, with her air of weary indifference. "And he says it's nonsense." Weasel. Sir, my Mistress begs you to walk up. Very awkward for him, if he really has lost his money. But I should not be surprised to learn that it never was posted at all. My dear girl, he said, "I cannot tell you how much I feel your kindness and friendship. But, now, pray don't look so terribly like the tragic muse! I assure you there is no need, as far as we are concerned. Castalia is perhaps a little extravagant; but, after all, what does it amount to? A few pounds would cover all I owe. The whole of our budget is a mere bagatelle. The fact is, you have attached too much importance to the chatter of these thick-headed boobies. They hate us, I suppose, because Castalia's uncle is a peer of the realm, and because we dine late, and because we prefer claret to Double X鈥攐r for some equally excellent and conclusive reasons." In England, the first vertical aero engine of note was that designed by Green, the cylinder dimensions being 4.15 inch diameter by 4.75 stroke鈥攁 fairly complete idea of this engine can be obtained from the accompanying diagrams. At a speed of 1,160 revolutions per minute it developed 35 brake horse-power, and by accelerating up to 1,220 revolutions per minute a maximum of 40 brake horse-power could be obtained鈥攖he first-mentioned was the rated working speed of the engine for continuous runs. A flywheel, weighing 23.5 lbs., was fitted to the engine, and this, together with the ignition system, brought the weight up to 188 lbs., giving 5.4 lbs. per horse-power. In comparison with the engine fitted to the Wrights鈥?aeroplane a greater power was obtained from approximately the same cylinder volume, and an appreciable saving in weight had also been effected. The illustration shows the arrangement of the vertical valves at the top of the cylinder and the overhead cam shaft, while the position of the carburettor and inlet pipes can be also seen. The water jackets were formed by thin copper casings, each cylinder being separate and having its independent jacket rigidly fastened to the cylinder at the top only, thus allowing for free expansion of the casing; the joint at the bottom end was formed by sliding the jacket over a rubber ring. Each cylinder was bolted to the crank-case and set out of line with the crankshaft, so that the crank has passed over the upper dead centre by the time that the piston is at the top of its stroke when receiving the full force of fuel explosion. The advantage of this desaxe setting is that the pressure in398 the cylinder acts on the crank-pin with a more effective leverage during that part of the stroke when that pressure is highest, and in addition the side pressure of the piston on the cylinder wall, due to the thrust of the connecting rod, is reduced. Possibly the charging of the cylinder is also more complete by this arrangement, owing to the slower movement of the piston at the bottom of its stroke allowing time for an increased charge of mixture to enter the cylinder. 伊人大杳焦在久久综合_老司机第一站免费网址_大香线一本道_一本道综免费观看 The connecting rods of this engine were of virtually the same type as is employed on nearly all modern radial engines. The rod for one cylinder had a bearing along the whole of the crank pin, and its end enclosed the pin; the other four rods had bearings upon the end of the first rod, and did not touch the crank pin. The accompanying diagram shows this construction, together with the means employed for securing the ends of the four rods鈥攖he collars were placed in position after the rods had been put on. The bearings of these rods did not receive any of the rubbing effect due to the rotation of the crank pin, the rubbing on them being only that of the small angular displacement of the rods during each revolution; thus there was no difficulty experienced with the lubrication. Maxim, in Artificial and Natural Flight, details the engine which he constructed for use with his giant experimental flying machine, and his description is worthy of reproduction since it is that of the only steam engine besides Giffard鈥檚, and apart from those used for the propulsion of models, designed for driving an aeroplane. 鈥業n 1889,鈥?Maxim says, 鈥業 had my attention drawn to some very thin, strong, and comparatively cheap tubes which were being made in France, and it was only after I had seen these tubes that I seriously considered the question of making a flying machine. I obtained a large quantity of them and found that they were very light, that they would stand enormously385 high pressures, and generate a very large quantity of steam. Upon going into a mathematical calculation of the whole subject, I found that it would be possible to make a machine on the aeroplane system, driven by a steam engine, which would be sufficiently strong to lift itself into the air. I first made drawings of a steam engine, and a pair of these engines was afterwards made. These engines are constructed, for the most part, of a very high grade of cast steel, the cylinders being only 3/32 of an inch thick, the crank shafts hollow, and every part as strong and light as possible. They are compound, each having a high-pressure piston with an area of 20 square inches, a low-pressure piston of 50.26 square inches, and a common stroke of 1 foot. When first finished they were found to weigh 300 lbs. each; but after putting on the oil cups, felting, painting, and making some slight alterations, the weight was brought up to 320 lbs. each, or a total of 640 lbs. for the two engines, which have since developed 362 horse-power with a steam pressure of 320 lbs. per square inch.鈥? The earliest writing of Charlotte鈥檚 which comes to hand is indorsed, 鈥楥harlotte, 1832,鈥?and is addressed to 鈥楳iss D. L. Tucker, 3 Upper Portland Place.鈥?It is a valentine written to her sister; and it shows that at the early age of eleven she had at least begun a little versifying; usually the line first adopted by incipient authors. When Manly designed his radial engine, high-speed internal combustion engines were in their infancy, and the difficulties in construction can be partly realised when the lack of manufacturing methods for this high-class engine work, and the lack of experimental data on the various materials, are taken into account. During its tests, Manly鈥檚 engine developed 52鈥? brake horse-power at a speed of 950 revolutions per minute, with the remarkably low weight of only 2鈥? lbs. per horse-power; this latter was increased to 3鈥? lbs. when the engine was completed by the addition of ignition system, radiator, petrol tank, and all accessories, together with the cooling water for the cylinders. Hang o鈥檈r his glory, bright鈥檔ing to the close.