Show WONDERS or AMERICAN the ivond cis in the milling and handling of iron ore in the united states by itlie of modern machinery are outlined in a special report lo 10 alio government nude by the acting british consul at chicago T era line a copy of which lias been received by the treasury bureau of statistics the report is entitled report on tho iron ore industry of the united stales but gicca especial attention to alio modern mining and handling of ore by which liend labor has been greatly reduced in mining ore in per tain parts of the superior region lie bay that the app covering of ground rock is cr aped off over alio whole property before mining begins railroad Bail road tracks arc then laid direct lo 10 tho aio oio bed and alio oie is loosened by bl asling steam shovels rc brough ti into and athey load the ore upon tho CAM one of these machines having loaded boiu in days ur at ilio rate of over 1500 ions per day these loading machines which i daily handle more than tons arc cac by five men and the labor cost for min loading averages but about 10 cents per ion and in the case of one mine which dug and loaded tons in daya the labor cost was only 4 cents per ton in the transfer of ore from mine to vessel on the lakes the absence of hand labor halso noticeable the ore trains arc run ait oit to lony docks amending emending em ending high above the water and having large pockets or into which the ore is discharged from the cara through an opening in the bottom of alic car from which the ore runs by gravity into the pockets beneath the tracks from pockets the oro is loaded J nto the vessel also by gravity and passed down long chutes into the hold of the vessel ey that no hand labor is required in transferring the ore from the cars to alho vessel the oro pockets or apartments which form a part 0 the dock hold about ago tons each and number from 90 to according to the length of the dock in unloading the ore from the vessel the saving of labor through the use of machinery is even more notable and important in its economics and results A of steel bridges so adjusted as to be easily moved along the docks is supplied a hinged arm which can be lowered to the haach of alic vessel along this arm and across the bridga rims a trolley train to which are attached automatic grabs similar to a double scoop which arc so constructed that the grab or scoop digs downward into the ore as it closes the grab or scoop holds about five tons of ore and is described as a digging machine as when it begins to draw together it digs into the ore and docs hot depend on its weight to get hold of the ore there are fifteen unloading jua chines in a battery and the grabs run down the long arms are lowered over cadi of 11 II fourteen hatches that are in the deck of most lake vessels carrying ore these hatches are run nearly the whole way across the becki the grabs can thus remove over half the cargo without any assistance and the remaining half is brought directly under the hatch by use of a scrap eralso operated by similar machinery and managed by a man in filhe hold through the use of long cords this scraper brings the ore from between the hatches so that it can be raised by the grab these grabs arc controlled by the engineer who can drop them at an point over the hold that he may wish and after it its load of ore it is raised at full speed canica rapidly along the trolley to such given point as de si rable where the are is deposited into railroad trucks or stock piles or in some cases into concrete troughs through w hichi it slide to alie furnaces where it is to be transferred into pig iron this grab thus lifts five tons of ore from the vessel carrying it to such point as de sired within a limited space has a hoisting speed of feet a minute and an can c run along the bridge at hie rate of 1000 feet a minute alic operator irav els with the grau and can unload it at any given point dered the bridges to which these arms with their grabs arc attached can be swung in any direction so s o that ore limestone or coke can be deposited or picked up anywhere in tha yard and are worked by electricity twenty sak incie will now perform under this system tho work for which w ore required under the old system 1 I owe my whole life to burdock blood bitters scrofulous covered j my body I 1 seemed beyond cure B B B ha made nip a perfectly well woman sirs chas II midi i |