Abstract: A lining element (10) for mounting onto an inner surface of a drum mantle (56) in a grinding mill, comprising an elongated lifter member (12) of a wear resistant material adapted to be axially oriented with respect to the drum mantle and to project radially into the drum, and an elongated single-piece support member (26) of an elastomeric material adapted to resiliently support the elongated lifter member over a full length thereof above the inner surface of the drum mantle. The support member is extended peripherally in a rearward direction with respect to an operational forward direction of rotation of the drum into contact with a subsequent lining element (10) to be mounted onto the inner surface, and to cover entirely therebetween the inner surface of the drum mantle.

Abstract: The present invention relates to an improved cathode element for the production of electrolytic copper, and more particularly to an improved cathode element of the reusable type which includes a cathode plate. With the intention of preventing a sleeve-like copper build-up around the cathode plate, the cathode element is provided with electrically insulating edge strips along at least those side edges of the cathode element which, in an active position, are located in the electrolyte bath, wherein the electrically insulating edge strips are chemically bonded to the cathode plate, preferably by vulcanization or by gluing.

Abstract: An arrangement for recording the instant volume of grinding charge in the mill drum of a rotary drum mill of the kind provided with an internal lifting device. In order to enable the volume of grinding charge to be used in a better way as a parameter for controlling mill operation, the lifting device is resilient and is provided with a load detecting device which, during each drum revolution, detects when the lifting device comes into engagement with, and is in engagement with the grinding charge present in the drum and leaves, or is caused to leave, engagement with the grinding charge. The arrangement also includes a tension sensing device which registers the tension on the load detector, this tension being contingent on the load to which the lifting device is subjected by the grinding charge.

Abstract: A method and an apparatus for determination of basic values from a material specimen to analyze the vulcanization characteristic of the material and to enable measuring of a vulcanization process during the vulcanization in a rapid and safe manner. According to the method the specimen is shaped with resulting true measured values under pressure and at a temperature preferably in excess of 100.degree. C. to a predetermined form and thickness between two electrodes with plane-parallel sides facing each other which during the shaping process are brought into an intimate contact with the shaped body to form together a capacitor, the capacitance and loss angle of this capacitor being measured and recorded together and simultaneously with the temperature of at least one of the two electrodes as the basic values.

Abstract: A wear resistant lining element for a rotary grinding mill. The element, which is made of elastomeric material, is provided on its leading side with respect to rotation with a hard wear layer made, for example, of steel. The hard wear layer is backed and supported by the elastomeric material of the element to which it is secured by chemical and/or mechanical bonding. With this arrangement, the elastomeric component cushions the hard wear layer and provides damping during grinding impact and minimizes cracking of the hard layer and scrap loss.

Abstract: Insulated pipe especially but not exclusively intended for subsea pipelines for transport of oil, gas and similar products which pipe comprises a steel pipe as core, a layer of corrosion protection material, a layer of thermally insulating material surrounding this and an external protective layer surrounding the insulating layer. To improve such insulated pipes so that they are capable of resisting occurring stresses even when placed under water at great depths the three layers contain rubber, the lyaer further containing cork up to 30-70% by volume.

Abstract: This invention relates to a wear means, which is arranged within a rotary drum barker as a wear protection of the drum mantle and is connected with this by means of a bolt joint. In rotary drum barkers the regions, where discharge openings for the bark are arranged, are subjected to a heavy wear. Therefore the wear means of the invention are preferably arranged in these areas. What characterizes the wear means of the invention is that it includes a wear body (4) of wear-resistant rubber and a prestressing means (13) which is connected to the wear body (4) so that it absorbs forces. Moreover, the wear means has a sleeve-shaped central portion (15) in connection with the prestressing means (13), the central portion (15) extending into a hole (17) in the drum mantle (1) of a bolt (6) included in the bolt joint and surrounding this.

Abstract: This invention relates to a track unit intended for endless tracked cross-country vehicles, for example forestry working machines, comprising at least one driven track driven from a driven axle of the vehicle. In order to render possible the driving of forestry working machines with tracks of rubber, which are much more sparing for the ground than steel tracks, but do not possess the tensile strength of steel tracks, the present track unit of bogie type distributes the driving force on several tracks and comprises two track stands (9), each of which comprises a track (8) supported on two wheels (38,39) and driven via of these wheels (38,39), which track stands (9) are mounted between the axles (40,41) of their wheels each at one end of a rocker arm (5), which in its turn is located freely pivotally between its ends on the drive axle (4) of the vehicle, between which drive axle and the drive wheel axle (40) of each track stand a chain transmission (12,13,14,37) is located.

Abstract: An injection unit intended to inject, for example, rubber into a mold comprises in principle two driven cog-wheels, which are located each in a hollow space in the unit housing and mesh with each other, and which in an injection chamber located in direct connection to the engagement zone of the cog-wheels subjects material fed-in to a high pressure, so that the material is pressed out of the injection chamber to a mold.

Abstract: A device for releasably holding flexible sheet material, comprising a holding member having a longitudinal slot with an entrance opening to the slot extending along the length of the slot, a first elongate locking member inserted through the entrance opening into the slot, and a second elongate locking member inserted through the entrance opening, after the first locking member, into the slot, the second locking member having a thickness greater than the entrance opening and being inserted through the opening by force, the device being such that the flexible sheet material extends around the first locking member and has two layers of material unsecured to each other and extending past the second locking member and out through the entrance opening adjacent a first wall of the slot, and the second locking member, when in its effective locking position in the slot, is in contact with the first locking member through one of the layers and situated between the two layers of the flexible material on one side and a

Abstract: A bulk material carrying container defined by a framework including a base and a pair of opposing, generally parallel upright sides carried by the base. An elastomeric sheet is secured to and suspended between the sides so that it forms a generally concave receptacle into which bulk material and the like may be dropped. The sheet is dimensioned so that it is substantially freely suspended between the sides. A multiplicity of sheet supporting, flexible ropes are anchored to the sides and engage an underside of the sheet so as to support the sheet and materials carried therein.

Abstract: Producing a paving mass by heating macadam stone material, mixing rubber vulcanizate with the heated macadam for a time sufficient for the rubber vulcanizate to adhere to the heated macadam stone material, and thereafter mixing in filling material and a binding agent.