Page:Scientific American - Series 1 - Volume 008 - Issue 29.pdf/3

 5citutific americau. I was recently in Cincinnati for the purpose of getting a pair of my rotary engines manu factured for my own use, 'It Mitch6lsville, to be applied to a merchant flouring mill, and also one for a gentleman of Grason County, Texas, for a saw-mill. But failing to make any satisfactory arrangements to get them A meeting 01 the St. Andrews and Quebec increased eight-fold within the last three years. One house made in 1848 only 15 en- Railway Co. was held at London on the 24th gines, but in 1851 finished n o less than 294. ult. The Directors' Report was regarded as The same results hold good with respect to satisfactory and adopted. ==--other improved agricultural implements.A joint stock company has been formed to One maker turns out 5 threshing machines a week; another who made only 56 machines work the Middletown, Conn., silver mines. in 1849 and 1850, turned out 192 in the last I ts capital is $60,000. The mines are said to made, I procured reciprocating engines for 2 1 months. be very rich. the purposes specified. Embarking in the flouring mill business (I think permanently) OTIS' MORTISING, BORING, AND HUB-MORTISING I shall probably abandon all further attempts MACHINE. to introduce my plan of rotary engine. Could they be properly made, and the facilities for Rotary Steam Engine��

227 connected together by the ornamental brace, T, to which the boring brace, U, is attached , thus causing all the upper work to move in or out together, lor any thickness of stuff, and also keeping the back and front boring shafts the same relative distance from each other. By this arrangem.mt the chisel and auger are al ways in range, so that the chisel follows

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the auger, which in mortising hard wood is very desirable. They are held in any desired position by thumb screws not seen in the en graving. The boring shatt is operated by a belt com

their manufacture be of the best order, and well systematized, their cost would be less, than that 01 other engines of equal power, and for many purposes I would strongly recom mend them. The want of capital, to thus es tablish their manufacture, is an effectual bar rier to my further progress in the business. Being well satisfied that my rotary is the world's last hope, and that any material de viation from my plan, as at present matured will prove abortive, I feel a strong sympathy for those, not in possession of my experience, who are attempting to invent and mature a rotary steam engine. They will have much to learn, and their know ledge will cost them

ing up from d pulley, T, through friction pul leys, to the short shaft at the back ot the ma

chine, on the end of which is a pulley not seen in the engraving. This short shaft hangs

in a brace attached to the ends of the guide bolts, and moving in and out witn them. This pulley is made a tight or a loose pulley by a clutch, the shifter of which is seen, at W, thus causing the pulley at X, with its belt " running to the boring shaft to revolve at plea sure. The boring shatt is brought down by the rod, Y, and the treadle, Z, and retracted by the spring, &, and operates with a speed

too dear. An attempt to excel, materially, the reciprocating engine, in point of economy, by substituting a rotary, is chimerical. I claim for my engine cheapness. compactness, and uniformity of action, and economy in the use of steam, equal to the reciprocating engine. Its objectionable features, in its present state of maturity, are not of any prominent charac ty to derangement by expansion and contrac tion of metal, and the yielding or displace ter ; the most obvious of which is its liabili

ment of adjusting screws employed in main taimng the 'steam wheels in their proper po sition. To a person experienced in running one, these difficulties are of small moment. J. A. STEWART. Mitchellsville, Tenn., March 9, 1853. New Route Proposed.

and precision unkno wn in any other kind of boring machines. The bed, 1, in which the stuff is bored or mortised, is adjustable, being raised or lowered at pleasure for any width of stuff, by the hand wheel and bolt at 2, or made to work on any bevel required by the bevel sweep and nut at 3. The stnff is held back against a guard, and held down by regu lating scre ws at 4 4. A graduated scale of prices is charged ac cording to what sort of machine is required, for the boring and mortising app<tratu8 can be had separately, as well as with or without the hub rigging, and also adapted for hand work or horse power.

Ful! particulars of which can be had on ap plication to Otis & Cottle, Syracuse, N. Y. Dr. Hereford, of Washington, in a commu nication which appears in the " Alexandria Gazette," thinks that too much physic has been an error in the management of scarla tina. He says, during t hirty years' practice, Treatment of Scarlet Fever.

Capt. Synge, of the Roval Engineers, has laid a proposition before the Geographical So cietY oCEngland'f(ft' 1t'-JeW' ilast India route by way of the St. Lawrence and the great lakes, with their extension chain including Rainy C.eek, Lake of the Woods, and Winne peg, with the rivers which fall into the latter lake on the eastern slope of the Rocky Moun tains ; thence the route continues westwardly to Vancouver's Sound. There are now on this route fifteen hundred miles of inland na vigation, soon to be extended four hundred miles by the construction of the Saut St. Mary

he has found that the less active medicine h e used, t h e greater was h i s success in t h e treat ment of thiS disease. He disclaims any mo

tives of vanity or selt-interest in his state ment. His treatment is described as follows: " In conclusion I will say, my treatment of scarlet fever is very simple . Open the bow els regularly every day with some mild ape rient medicine, such as castor oil, senna, &c., and keep the patient at rest and comfortably warm ; sponge the surface with tepid water

of the sea. The advantages claimed are, that it is three thousand miles nearer than any other mail route to Australia ; the inland por tion lies entirely within British territory, and instead of requirinl sixty or eighty days for transit, would only require forty to fifty.

Canal ; and the same may be extended by occasional artificial connections almost to the base of the Rocky Mountains. which are re presented to be at that point but fourteen hun:lred and fifty eight feet above the level

two or three times a day ; while it is hotter than natural admit tresh air ; live on a bland diet, such as a cupfull of arrowroot, several times a day ; toast water for common drink. Gargles made of strong sage tea, honey, and alum, or borax, may be Ilsed from the com mencement, if the throat is affected." Cure for the Bee Moth Ravage��

jurisdictior. of Justices of the Peace, from and after the 24th o f February. It authorizes any County Court or City Council in the State, to subscribe to any rail way, and to pay their installments by an is

The above is a perspective view ot Otis' o n the [chisel :od because the centre of the Mortising and Boring Machine in combina pin in the sliding fulcrum, L, ,IS cut away, Missouri Railway Law. The law authorizes any number o. persons, tion. A represents the mortising or chisel thus causing the centres of motion to be di rectly over each other, and of cO!lrse giving not less than' six, to constlUct a railroad in shaft, B, the boring or auger shaft. The mortising is con!lected with the power, no motion to the chisel rod. To bring the that State. It fixes the gauge, or width between the and operated bv it in the following manner : chisel rod into play the foot is pressed down The side rods, C, one of which is seen in on the treadle, M, which carries down the rails, of all the railroads, at 5 feet 6 inches. It exempts all existing railways from the the engraving is connected with the long lever, N, and the chain that is connected to it yoke, D, at the top of the chisel rod, by an adjustable joint, with jam nuts to hold all fast together and keep the side rods ot equal length. The two yokes, D and E, are con nected together by short eye bolts, which sue of bonds, or by special taxation. And give the yokes full play, yet causing the they may,put in their swamp and o verflowed chisel rod, yokes, &c., to move together in lands, internal improvements and other funds. forcing the chisel down into the wood, and to

Any county or city levying a railway tax, are to issue receipts to the tax payers, which are assignable, and convertible into stock of the company to which subscription is made. The law contains many other provisions end to a short slide, G, which plays in a groove in the bottom 01 the frame work, H H important to Missouri railway enterprizes. z:::::= H H H, by a screw. The slide, G, has a steel Agricultural Machinery. pin in it which plays in a groove in the mov As an instance of the improvement in agri able levers, I I, that are connected by the culture now in progress, it may be mentioned' pitman, J, to the balance wheel, K, the ba that the makers ot steam engines for agricul lance wheel causing the levers to make a full P"'1"' in E, .... d, h", in "m, _ stroke at every revolution, but not operating

that passes over the little chain pulley, 0, to the sliding fulcrum, L, thus causing the slid ing fulcrum with the movable lever, I I, to slide forward on the rods, P P, over the steel pin in the slide, G, and of course carrying down pin and slide rods and chisel rod with it, d allowing the chisel to� rturn again to the same level at every stroke ; mortising, of retract the same by the help of the steel course, deeper and deeper as the levers slide spring, F, there is a provision likewise for di or the resistance is moved further from the minishing the friction between them. fulcrum and nearer th power. The sliding The rods, C, are connected at the lower fulcrum is brought back to its former position by the chain passing from the sliding fulcrum over the chain pulley, Q, to the dead weight R, when the pressure of the foot is removed, thus bringing it into full stroke, or five inch es, or stopping the chisel at the option of the operator. The chisel rod passes through the guide bolts, S S, the balls of which are lined with babbitt metal. Said guide bolts are

The " Mobile Tribune " savs :-" Such of our readers as are engaged in the bee culture will be glad to learn that a remedy has been discovered which effectually prevents the ra vages of the bee moth. The frequent and se rious injury caused by this pestiferous insect, has deterred many persons from e ntering into the business of raising bees, more especially as in some localities the ravages have been so great as nearly to destroy both bees and ho ney. The plan is this :-split joints of cane through the centre and arrange them o n the four sides of the hive, with the split side rest ing on the platform. The moth, instead of depositing its eggs under the edge of the hive, will lay them under the split cane. From these depositories they may be removed and

destroyed as often as necessary with little trouble. A friend informs us that he knows the plan has been tried and found entirelf suc cessful." Georgia is a model State. She has 860 miles of railroad in operation. Her credit is of the highest order, her six per cent. bonds selling at the highest premium, and she now gives Ilotice of her readiness t o pay the inte"" "ih" ....d. fu, tho ",x, ox =nth advance. =



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