Device for regulating the speed of rolling objects, e.g. for braking of round objects that move downward on something such as an inclined transport area, of which the device comprises at least one collapsible housing extending in the object's path of motion, that rests on a foundation, e.g. in the form of a beam of similar, and the front end of the object is at least connected in the object's path...

A copper extraction process involves the step of treating roasted ore (esp. dead roasted sulphide ore) in an autogenous reduction suspension smelting zone with an oxygen-contg. gas (pref. contg. 50-100 vol.% oxygen) and a reductant in amt. sufficient to reduce the ore to copper. - Blister copper is produced directly from roasted ore, without a converter refining stage, by a continuous, energy-effi...

The feed includes protein carbohydrate and trace elements such as vitamins and minerals. It is produced in grain form and includes constituents to stabilise it, provide consistency and a binder. The form is maintained in the rumen for at least an hour esp. 1-4 hours to stimulate the rumen to work. The binder comprises e.g. colophony and opt. a physiologically acceptable inorganic salt e.g. sulphat...