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A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures

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A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures R R SCIENCE MECHANICS A WEEKLY JOURNAL OF P ACTICAL INFO MATION, ART, , , CHEMISTRY, AND MANUFACTURES Vol. XVIII.--NO'. }.9.t { $3 per Annum [NEW SERIES.) r NEW YORK, MAY 9, 1868. [iN ADVANtJE., Device Cor Removing Seeds and Pits Crom Fruit. ing of vulcanite, is inserted in the cup, without touching any through the rolls, and cause them to unite firmly and with The preparation of fruit for culinary purposes or preserv­ part of the surface thereof except the bottom of the inside of a uniform surface, so as to produce a superior article of metal. ing is a monotonous and tiresome labor, at least the work of the inverted cup, and the intervening space is filled with ce­ " In carrying out our invention, we take blocks or sheetll of removing the seeds or pits. To facilitate the operation and ment, made, by preference, of one part of plaster Paris and any of the aforementioned hard metals, and roll them, in a render the task less irksome is the object of the inventor of two parts of Portland cement, but other cement may be used, cold or heated state, until they assume a certain thickneslI. the neat little implement shown in the engraving, an object such as plaster, or Roman or Portland cement alone. After We then make an alloy of either of the following; One put we have found by trial it successfully accomplishes. Its the parts have been united by the cement, the whole is in quarter tin, one quarter copper, and one half lead, ll\ore or operation is very rapid and its results satisfactory. It never a bath of melted paraffine wax, at a temperature of about 2240 less; or six parts tin, one, antimony; or fifty parts tin, four, fails to remove the pits from cherriee Rnd the seeds from Fahr., and there left until all bubbling ceases, which indi­ antimony, one, bismuth; or fourteen parts tin, one twell.ty raisins, grapes, cranberries, etc., leaving the fruit in excQllent cates that all the water has been expelled from the cement, eig!!th part zinc or copper, or one half of each of the latter condition without crushing or bruising it. and that the pores have all been filled. In this way all the ones; or pure tin, alloyed with as much of one of the above. The machine is made, with named metals, or any other meta� the exception of the platform, which will give it more stiffness A, of the receiver and the gutter, : and durability than it has in ite B, wholly of wrought iron, so natural state; or we use pure tin there is no danger of breaka.ge. : itself. A block of the tin, or tin There are no springs or compli- . or other alloy, is now cast in a cated parts to get out of order mold of suitable size, which and it is made in a substantial block is then passed through manner. The device is screwed highly-polished rollers, so as to to the edge of a table in the be reduced to a proper thickness same manner as a " sewing bird" to answer the purpo5e of com­ or other similar implements, mon plating. The thickness may so that it may l:uJ attached or re­ vary from one to thirty. five per moved instantly. The fruit is cent of the origina.l thickness of dropped into the receiver, A, Fig. the block or sheet of hard metal 2, which, when the implement selected. The strips thus pro­ is attached to a table, is inclined duced are then severally eprea'd toward the operator, and it rolls or laid upon a smooth, level table. down the grooves to the recesses, One of the aforementioned blocks �hich hold it in place to be ope­ or sheets of hard metal is now raied upon. The hand then lifts laid upon one of the' strips of tiQ. forward the handle, C, connected, or alloy, which strip is then lap with the hooked forks, to a pivot. ped over the former, so as to en­ The ends of the forks or stoners tirely cover it. Care mlist b� ale split and pointed, the points taken to rub it smoothly,ili or� diverging from the center. These der to prevent the formation OJ engage with the seeds or stones air blisters !1r wrinklell. The in theflo!lll* tmd'1ori!&, iJmn compound sheet or block thus through the apertures in the constituted is now passedbA­ ,bottom of the recesses in A. As tween highly-polished 'roll�rlil the forks are raised the fruit ad­ under heavy pressure, wherAby heres to them, and is raised as the metals become quite hot in seen in the main figure, and passing through, thllS causing thrown off by the plate, D, drop · them. to, firmly unite, and ev.en: ping into the gqtter, B, and being ly, in one solid sheet, having thus discharged into a dish, the either the tin or alloy, or other THE ILLINOIS CHERRY STONER. seeds dropping through the re- metal, for the outer coating. -cesses in A to another vessel placed to receive them. Pierced pores and interstices are filled with paraffine wax, thereby " Instead of the above process, we prepare a solution of pne glands of leather or other suitable material under A prevent rendering the insulation more perfect, and as there are no pores pound 0 f muriate or nitrate of tin, and ten gallons (or eighty the return of the seeds should they become attached to the into which moisture can lodge, there will be no danger of pounds) water (980 Fah.), more or less. Into this bath we dip forks. fracturing the parts by the expansion of water in freezing, as the desired sheet of hard metal for the space of liveto t well.ty This little machine leaves the cherries after being stoned heretofore. minutes, more or less, when the sheet will be found sufficient- round and plump, and from its rapidity of operation does not The third part of this invention consists in covering the .ly covered with pure tin. It may then be polished or rubbed waste the juice. Patented by George Geer, April 9, 1867. telegraph wire itself, at the point of support, and for a dis- bright with soft cloth or leather. It will be found that steel For further information address Geer & Hutchinson, Peoria, tance of a foot or more on each side, with a covering of hard or iron coated with tin or alloy can be used for cooking \lten­ m. rubber, similar to that placed on the insulator. This is car- sils, and for every article in which sheet tin is employed. ...... ried into effect in the following manner, viz; First, pieces of The surface being entirely uniform, it cannot be affected by Telegraph Insulation. ordinary galvanized telegraph-wire are tinned, and then cov- dampness, and thus serves to prevent rust. o C. F. Varley, well known for his skill as an electrician, and ered with hard vulcanite, in the same manner that the insu- "Our process prevents oxidation or corr sion in zinc. We especially for his servIces in connectIon with the Atlantic ca­ lator pins are covered, as above described. Secondly, these can produce very large sheets thereof, when, by the process p o uc s ll pieces. For ble, has lately obtained the following patent: pieces of wire are spliced into the telegraph.wire at each point now employed, it can only be r d ed in ma the like, our nc will Insulators for telegraphic wires are usually made with an of support by meane of the usual soldered Joints. Prior to be- lining bath tubs, water cisterns, and zi be ing ueed, these pieces are boiled in paraffine wax, and from found invaluable. For photographic and lithogral"hic pur­ Iron pin, coated with what is known as vulcanite, or hard vul­ or plated canized india rubber, and secured by means of plaster Paris, time to time, when their surface becomes damaged by the so· poses, we interpose between the sheets of covered or any or other cement, inside of a porcelain or other earthenware lar actinic rays and exposure, they are wMhed and rubbed zinc suitable pieces of tissue or other paper, muslin, to a o pressurfi ; cup inverted. As heretofore made it has been found that the with paraffine oil or coal-tar narhtha, which renews the insu- equivalent fabric, and then subjllct them n ther vulcanite covering is liable to be porous, and full of what are lating power of the surface. or we pass the metal between rollers having a slightly-rough- known as blow-holes, and that the iron or steel pin is liable These insulators are principally useful where the wires are ened surface, so that the impression of the paper, fabric or surface to rust, by reason of the presence of the vulcanite covering, exposed to the spray of the sea, the rain washing them clean. rollers will be imparted to the metal, and cause its to it o and that the accumulation of the rust is liable to crack the This oil is very useful with all kinds of insulators, for the pur- assume a certain roughness necessary to photQ>grapbia, l h - rposes . vulcanite covering. pose of renovating the surface. graphic, printing, or any other ornamental pu be applied are nu- And the first part of said invention relates to a method of .. .. .. "The uses to wbich our invention can purposes re quiring stiff preventing the pin from rusting, and consists in coating the Improvement In Coatln&t Metals.
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