The machine shown in the accompanying engraving was designed by the manufacturers, the Brown&Sharpe Manufacturing Company, of Providence, R. 1., to meet a want long felt in their own works— a ready and convenient method of chucking countershaft pulleys and other work of similar character. The revolving table is driven by a five-step cone for a 3 inch belt, and is geared six to one, which gives it great power. The steps of the cone are so graded as to make the cuttingspeed uniform for five different diameters of holes. The turret head has four holes, . in diameter, and is securely clamped in position. An adjustable dog allows the locking pin to be withdrawn at .any part of its upward motion. The turret slide has a movement of 21” inches, and is provided with an automatic feed, which can be easily and quickly changed from the finest ever needed to the coarsest required. It has a quick return by hand, and is counterbalanced by a weight inside of the column. The machine will take a pulley 36 inches in diameter, 18 inches face, and hub 12 inches in length ; and to bore a 4 inch hole in same, making two or three cuts, and finish by reaming, can be done without removing either the tools or work. It is evident that with this machine much more work, and of a superior character, can be accomplished in a given time than can be done upon an engine lathe. The work can be more easily trued and secured in place than upon any machine having a horizontal spindle, and the different tools in the turret head can be readily brought into operation in succession. The chips fall through the center of the spindle of the revolving table to the floor, causing no trouble by clogging of reamers, etc. 011, Albuminoid Matter, and Starch from Corn. In the manufacture of starch, com is steeped in water, and kept at a temperature favorable to promote fermentation and putrefaction, for the purpose of loosening the cellular tissue, and to liberate the starch granules as well as possible. In order to accelerate this process, an addition of a small quantity of alkali, preferably caustic soda, is generally made, while other manufacturers, for the dissolution of the inter-cellular matter, prefer the use of dilute acids, especially sulphurous acid. After 24 to 40 hours' standing, the steeped corn is reduced to a pulp by grinding, from which the starch is then obtained by brushing through sievesand an elaborate process of floating and settling. In the spent liquors remain dissolved the soluble parts of corn, such as gum, sugar, albuminoid substances, gluten, salts, etc., which hold in emulsion fatty and resinous matter, and also suspended cellular and other insoluble matter. It is this milky liquid to which the inventor, Dr. F. V. Greene, of Philadelphia, applies his process. The liquors are mixed with a small quantity of a solution of sulphate of alumina, which renders insoluble the albuminous substances (for the larger part). These in coagulating envelop and precipitate the fatty matter, as well as the coarser particles, so that the liquor, after settling, is left almost clear. The precipitate is separated by subsidence or filtration, and pressing, and after proper drying forms a grayish coarse powder, the by-product of starch factories, as intended by the inventor. The same treatment is also proposed for the residues of distilleries and vinegar factories. From the dry product, the oil may be obtained by pressure, or by extraction with benzene or bisulphide of carbon, and the exhausted residue is proposed as a fertilizer for the sake of its nitrogenous matter. Mr. Trimble found 4'26 per cent nitrogen in a sample ; while Mr. Haines found 4 '75 per cent in another sam VERTICAL CHUCKING MACHINE. ple of this exhausted residue, which amount the inventor expects to increase to 8 per cent by improved operations. The quantity of oil obtained is reported by the inventor as being about one-tenth of the dry precipitate. The oil, which in its crude state is dark colored, has a good body, and is capable of bleaching. After all odor of the remaining extracting medium (hydrocarbons or bisulphide of carbon) is dissipated, the oil has a very agreeable flavor of its own. Undoubtedly, it would make a very satisfactory soap stock. The drying. of the precipitate, which, in its nature. must be very bulky and pasty, will undoubtedly be somewhat difficult and expensive ; considering, however, that the waste waters will by this treatment at the same time be disinfected, the process would be a great boon to the whole community in removing a public nuisance—putrefying waste waters of starch factories. -Franklin Journal. n Protection against fellow Fever. In a letter dated May 26, 1886, addressed by Dr. Domingos Freire, of Rio de Janeiro, to Dr. Joseph Holt, President of the Louisiana State Board of Health, the following interesting statement is made : I have performed over 7,000 inoculations with full success; the immunity was almost absolute, notwithstanding the intensity of the epidemic this year. More than 3,000 persons who were not inoculated died of yellow fever ; while among the 7,000 inoculated, inhabiting the same infected localities, subjected to the same morbid condition, but seven or eight individuals, whose disease was diagnosed as yellow fever, died. ' It is hardly necessary to say that I have taken notes of but one of these cases. My confreres here have the abominable
This article was originally published with the title "Vertical Chucking Machine"