The storage properties of a hydraulic cement containing a superplasticizer and treated with from 0.l to 10% by weight of water are improved by the addition of a set-retarding plasticizer such as glucose or sodium gluconate.

The storage properties of a hydraulic cement containing a superplasticizer and treated with from 0.l to 10% by weight of water are improved by the addition of a set-retarding plasticizer such as glucose or sodium gluconate.

Apparatus is disclosed for the distribution of logs into the supply shafts of a plurality of successive grinders from a conveyor line consisting of several belt, chain or other conveyors placed in succession and carrying the logs transversely thereon. The logs are passed from one conveyor to the next and distributed into supply shafts through gaps between the conveyors, which are automatically sta...

Apparatus is disclosed for the distribution of logs into the supply shafts of a plurality of successive grinders from a conveyor line consisting of several belt, chain or other conveyors placed in succession and carrying the logs transversely thereon. The logs are passed from one conveyor to the next and distributed into supply shafts through gaps between the conveyors, which are automatically sta...

A box-like frame member (16) is formed by compressing an internally-pressurized tubular blank (15) within a die (11,13) having a cavity (35,41) conforming to the final box-like cross section desired for the product (16), and increasing the pressure to exceed the yield limit of the wall of the blank (15) to expand the blank (15) into conformity with the die cavity (35,41). The blank (15) is selecte...

PCT No. PCT/FI88/00062 Sec. 371 Date Nov. 3, 1989 Sec. 102(e) Date Nov. 3, 1989 PCT Filed Apr. 26, 1988 PCT Pub. No. WO88/08907 PCT Pub. Date Nov. 17, 1988.The invention concerns a prestressed construction element of composite structure comprising a bar- or tendon-like inner part (1) of high tensile strength, a sheat part (2) of, e.g., high-strength concrete or ceramic material, adapted about and ...

The invention provides a method for transforming plant material comprising contacting the material with a transformation solution comprising DNA and a membrane-permeating agent in the presence of an electric current for a sufficient time to effect transformation and thus obtained plant material and fertile plants. The invention also provides novel transformed plant material, in particular corn.

The invention comprises a filter connected to the existing cesspit, and a return pipe. The filter holder is injection moulded plastic and the filter is a rust resistance fabric, which is readily removable. The cesspool content are circulated through the filter until the solid matter in the filter has risen to 40%. Compositing is started by bacteria added to the filter before or during pumping. The...

The clamp ring is divided at a point (3) where it has a recess at one free end. A lock tongue (4) inserts into the recess with a cogged rod (7) at the other free end. A gearwheel (7) works in conjunction with the rod to adjust the diam. of the clamp ring. The gearwheel is prevented from rotating backwards by a friction or hook device.

The grip tool (10) has a yoke (12) connected to the striker (11), to which two arms (14) are pivotably connected. These arms have grippers (18) projecting from them laterally. In order that the grippers may be brought without difficulty into firm engagement with a tooth crown or bridge, the tool has an adjustment mechanism (21) for the arms, by means of which they may be adjusted into different pi...

The invention relates to a device pertaining to a forms tray, comprising a base 2, a rear wall 3 projecting upwards from the base 2, and two side walls 4. Each side wall 4 has in the region directly beneath its upper edge 5 at least two hole formations 6 situated at a predetermined distance apart and an edge flange 7 juts out a short way from the bottom side 9 of the base 2 beneath the respective ...

Out of the unit formed by the closure plug and its frame behind the battery, the plug is removed, and on its frame the adjustable valve is incorporated. The valve itself has a frame (1) which is fitted inside the closure plug frame, and an adjustment part which is adjustably mounted in the frame. Through holes (3,4) formed in the frame water flows, and the adjustment part regulates the water flow ...