| Patent Number |
Title Of Patent |
Date Issued |
| D291087 |
Wedge for a drill shank of a percussion drilling machine |
July 28, 1987 |
|
| D282666 |
Shank adaptor for a rock drill |
February 18, 1986 |
|
| 5238666 |
Process for separating sulfur compounds from flue gases |
August 24, 1993 |
| A process for desulfurization of fuel combustion gases and a new reactor wherein the primary flue gas stream containing sulfur oxides and alkaline oxide solids flows into the reactor vessel. A plurality of baffle columns is positioned at the top of the reactor vessel which serve to separ |
| 5230773 |
Process for the recovery of heat and chemicals from spent liquor |
July 27, 1993 |
| The invention relates to a process for the recovery of heat and chemicals from a mixture of ashes and spent liquor by carrying out the final concentrating (2) of the liquor, and its feeding (8) into the soda recovery unit (5), under pressure and at a temperature higher than the atmos |
| 5175436 |
Method of producing high-energy electron curtains with high performance |
December 29, 1992 |
| The application of the electron beam technique in the polymerization of surfaces and purification of flue gases, for instance, often has a high demand of energy. The performance of prior art emitters, often considerably less than 50%, is thereby a major drawback. In the present metho |
| 5145072 |
Method for screening and treating pulp |
September 8, 1992 |
| The invention relates to a method and a device for screening and treating pulp. In the invention, the pulp is screened in a screen into an accepted fraction and a rejected fraction, the rejected fraction being treated after the screening by removing water from it. In order to reduce the |
| 5139097 |
Rock drilling apparatus |
August 18, 1992 |
| The invention relates to a rock drilling apparatus comprising a carrier and at least one drill boom mounted in the carrier and provided with a drifter and a feeding beam. Valves for the control of the operations of the drifter and the feeding beam are arranged in the form of an integral |
| 5129470 |
Drill hole filling method and apparatus |
July 14, 1992 |
| The present invention relates to a method for use in connection with a drilling apparatus for drilling a hole and also filling the drilled hole with a filler. A hole is drilled by using a tubular drill rod with a crushing tool provided at the end of the drill rod, with the crushing tool |
| 5128030 |
Device for separating solids from suspension |
July 7, 1992 |
| A device for separating solids from suspension comprises two filtering belts pervious to water travelling in the same direction and arranged to be supported and guided each by their respective liquid withdrawing surfaces provided with holes which form therebetween a prefiltering cham |
| 5125584 |
Method and apparatus for removing impurities from paper pulp in pulpers |
June 30, 1992 |
| In a method and apparatus for removing impurities from paper pulp, the pulping space enclosed by a solid jacket is divided into a primary and a secondary space by means of a partition wall. Both the primary and the secondary space are provided with separate rotor units and perforated |
| 5124000 |
Method of and an arrangement for passing a fibre web from a wire through a press section |
June 23, 1992 |
| A method and an arrangement for passing a fibre web (25) from a wire (3) of a former (1) through a press section (2) including at least three nips (N1, N2, N3) each formed by a pair of press rolls. The method involves transferring the web (25) from the wire (3) onto a sucession of press |
| 5112441 |
Process for the recovery of heat and chemicals from spent liquor |
May 12, 1992 |
| A process for the recovery of heat and chemicals from spent liquor by evaporating water out from it in order to concentrate the liquor and be feeding the concentrated liquor thereby obtained and air into the soda-ash furnace. In order to increase the dry-matter content of the liquor to a |
| 5111999 |
Arrangement for fastening the grindstone of a pulp grinder to a rotary shaft |
May 12, 1992 |
| An arrangement for fastening a grindstone (1) of a pulp grinder to a rotatory shaft (2). In the arrangement, the radial forces acting on the grindstone are transmitted from the fastening flange (3) of the grindstone (1) to the rotatory shaft (2) by means of a support member (12) which |
| 5102532 |
Method for controlling pressurized screening devices and pressurized screening device |
April 7, 1992 |
| The invention relates to a method for controlling pressurized screening devices in which fiber pulp is fed to the pressurized screening device and is divided into the accepted portion of the fiber pulp passing through perforations of a cylindrical screenplate and the rejected portion whi |
| 5086571 |
Device in the drying section of a paper machine |
February 11, 1992 |
| In the drying section of a paper machine having a first cylinder, a second cylinder and a support fabric supporting a web to be dried, the fabric along with the web being passed from the first cylinder to the second cylinder, a device is provided at the height of the free run portion of |
| 5084985 |
Drying section in a paper or board machine and method for guiding a web therein |
February 4, 1992 |
| In the drying section of a paper or board machine, a web travels in a meander-like fashion around drying cylinders and it is provided with ducts for delivering web-run stabilizing suction into the drying section. At least one cylinder is provided with ducts for delivering suction in the |
| 5077024 |
Method and apparatus for wetting the particles contained in a gas flow |
December 31, 1991 |
| In a method of wetting particles contained in a gas stream including particles and gas, a primary gas stream containing the particles is separated into first and second gas streams such that the first gas stream includes substantially all the particles of the primary gas stream. The |
| 5071543 |
Method of screening pulp and a screening apparatus |
December 10, 1991 |
| The invention relates to a method and a screening apparatus (1) for screening pulp. In the method, the maximum length of fibres and shives flowing through holes (4a) in a screen drum (4) is adjusted by moving blades (8) with a sharp front edge close to the surface of the screen drum |
| 5064125 |
Pulper |
November 12, 1991 |
| An apparatus for pulping and screening materials containing fiber pulp includes an upper pulping section for breaking down the materials and a lower screening section for prescreening of the broken materials. The pulping section includes a feeding chamber delimited by a housing, a rotor |
| 5062921 |
Method for regulating the feed or combustion conditions of concentrated waste liquors in a soda |
November 5, 1991 |
| A method for regulating the feed and/or combustion conditions of concentrated waste liquors of varying chemnical and physical properties, for their burning in a soda recovery unit, by determining the maximum expansion upon heating of a dry matter particle of the liquor to be fed into |
| 5051168 |
Device for screening and treating pulp |
September 24, 1991 |
| The invention relates to a method and a device for screening and treating pulp. In the invention, the pulp is screened in a screen into an accepted fraction and a rejected fraction, the rejected fraction being treated after the screening by removing water from it. In order to reduce the |
| 5050283 |
Arrangement for handling drill rods in a rock drilling unit or the like |
September 24, 1991 |
| An arrangement for handling a drilling equipment comprising clamping jaws (11a, 11b) mounted rotatably with respect to the axis of a drill tube (8a, 8b) and a breaking device (7) mounted rotatably about the axis of the drill tube (8a, 8b) and movably in the longitudinal direction of a fe |
| 5041213 |
Pressurized screening device |
August 20, 1991 |
| The pressurized screening device designed for screening fiber pulps, especially paper pulp is provided with a screenplate with perforations, cleaning members being in connection with and moving relative to the screenplate, devices for generating the relative motion between the screen |
| 5034205 |
Method of removing sulphur oxides from flue gases |
July 23, 1991 |
| A method of removing sulphur oxides from flue gases, in which method lime such as calcium carbonate is fed into a separate reactor space positioned in a boiler. In the reactor space the lime is converted into calcium oxide and carbon dioxide under the influence of the temperature prevail |
| 5032228 |
Method of and an arrangement for supporting the frame of a paper machine |
July 16, 1991 |
| The invention relates to a method and an arrangement for supporting the frame of a paper machine or the like. In the method, the frame is supported at a point below it for the time the wire or felt is being changed by means of a separate support member (11) on a normal frame supporti |
| 5009736 |
Method of and an arrangement for gluing a web to a core in a reeling device |
April 23, 1991 |
| A method and an arrangement for fastening a web (4) to a core (10) in a reeling device. In the method glue is applied before the cutting off of the web between the core and the web from above the core, and the web is pressed against the core so that it adheres to it, whereby the web is c |
| 5007354 |
Combustion air supply system for a recovery furnace |
April 16, 1991 |
| In a combustion air supply system, particularly a secondary air supply system for a recovery furnace, the secondary air inlet ports are divided into two arrays in such a manner that the combustion air coming in through the inlet ports of the first array is directed in part to contact and |
| 5002743 |
Process for the removal of sulfur dioxide from hot flue gases |
March 26, 1991 |
| The invention relates to a process for the removal of sulfur dioxide from hot flue gases (8) which have been obtained by burning a sulfur-containing substance (4) in a boiler (1). In the process, a substance (6), such as lime or limestone, which reacts with sulfur dioxide to form a solid |
| 5000271 |
Feeding device for a rock drilling machine |
March 19, 1991 |
| A feeding device for a rock drilling machine (3) comprising a cradle (1); and a feeding beam (2) mounted longitudinally displaceably with respect to the cradle (1), the drilling machine (3) being displaceable along the feeding beam. Displacing means comprise a chain (6) forming a closed |
| 4998333 |
Roll for the press in a paper machine or the like |
March 12, 1991 |
| A roll (1) for the press of a paper machine or the like, comprising a substantially rigid cylindrical shell body (2); a resilient layer (3) made of a resilient material such as rubber and positioned on the shell body; and a surface layer (4) positioned on the resilient layer. The resilie |
| 4979575 |
Method of drilling a hole-in a rock |
December 25, 1990 |
| A method and an arrangement for drilling a hole in a rock (6), wherein a preliminary hole is drilled first, whereafter the drilling is interrupted. Joints between a drill boom (2) and a feeding beam (5) and/or the feeding beam (5) in its longitudinal direction are released so as to move |
| 4974689 |
Drill hole filling method and apparatus |
December 4, 1990 |
| A drill hole filling method involves drilling of a hole by using a tubular drill rod through which, in the course of drilling, a flushing medium is supplied through at least one opening in a crushing tool into an annular space, defined by the hole and the outer surface of the drill rod, |
| 4974686 |
Apparatus for handling a drilling equipment |
December 4, 1990 |
| An apparatus for mechanically handling drilling equipment comprising at least drill pipes and a drill bit and drill guide bushing has a carrier. A clamp on the carrier clamps a first drill pipe unrotatably relative to the carrier in a drill-pipe position. An opener is spaced from the cla |
| 4972911 |
Travelling centralizer arrangement in a rock drill |
November 27, 1990 |
| The invention relates to a travelling centralizer arrangement in a rock drill (2), comprising a travelling centralizer (5) movable along the feeding beam (1) during the drilling. The travelling centralizer (5) of the arrangement comprises two jaw halves (12a, 12b) mounted in a carriage |
| 4971158 |
Method in rotary drilling and rotary drilling apparatus |
November 20, 1990 |
| In a rotary drilling apparatus, a rotary head is advanced against an object to be drilled and a neck element included in the rotary head and connected with drilling member is rotated around its longitudinal axis relative to a rotary head body. The neck element is subjected, in a normal d |
| 4968218 |
Method of controlling the air output of a screw compressor |
November 6, 1990 |
| A method of controlling the air output of a screw compressor, wherein the average air output of the compressor during operation is adapted to air consumption by throttling the flow of suction air or by connecting the compressor alternately to full air output capacity and idle operation |
| 4966653 |
Apparatus for controlling a moving band |
October 30, 1990 |
| The invention relates to an apparatus for controlling the passage of a moving band (1) or the like in a paper machine or the like. The apparatus comprises a roll (2) mounted at one end turnably with respect to a machine body (3) while the other end is mounted turnably to an adjusting dev |
| 4964956 |
Method of and a device for leading a web moving between two wires on to a desired wire |
October 23, 1990 |
| A method of and an arrangement for leading a web on to a desired wire in a paper machine or the like. When the web moves between two wires, it is transferred on to one wire after the wires have moved in parallel over a distance with the web therebetween making contact with both wires. Th |
| 4964584 |
Device for feeding a tape in severing a web |
October 23, 1990 |
| A device for feeding a tape which severs a web in a paper or cardboard machine includes a tape and a feeding arrangement for feeding the tape to a space located between a reel spool and a reel drum. The feeding arrangement includes an elongate transfer profile which guides the tape to |
| 4963270 |
Decker with partitions for filtrate fractions |
October 16, 1990 |
| A decker comprises a tank having a thickening drum mounted rotatably therein and including a filtering shell. The inside of the drum communicates with an inlet for feeding mass, whose consistency is to be increased during the thickening process and outlets for discharging the thicken |
| 4958444 |
Apparatus for drying a fibre web |
September 25, 1990 |
| An apparatus for drying a fibre web (4), wherein the web (4) is dired in at least two successive drying zones between a heated band (1b, 1d) and a cooled band (1a, 1c) moving substantially in parallel with and at equal speed as the web (4), the bands being endless and air-tight and havin |
| 4948465 |
Method and apparatus for facilitating the replacement of an endless press felt in a paper and bo |
August 14, 1990 |
| An apparatus for facilitating the replacement of an endless press felt in a paper and board making machine includes an actuator for lifting a roll which is in contact with a press felt. The actuator operates to lower a roll holder carrying the second end of a roll. The apparatus also inc |
| 4935098 |
Press section in a paper machine with guide track support for central roll |
June 19, 1990 |
| The compact press section in a paper machine has a frame construction with several sections and a roll arrangement. The roll arrangement comprises a roll and at least two press rolls, each forming a nip with the central roll. The press section additionally comprises members for guiding t |
| 4934465 |
Arrangement for the axial bearing of a drilling machine |
June 19, 1990 |
| The invention relates to an arrangement for the axial bearing of the drilling machine. The drilling machine thereby comprises a body (6), a percussion device (1) fitted in the body, and a rotation bushing (3) functioning as a rotating means of a shank (2) positioned on an axial exten |
| 4931140 |
Method and a device for cutting a web in a paper machine by means of a water jet |
June 5, 1990 |
| A method and a device for cutting an edge strip in a web by means of a water jet against a felt or wire of a paper machine for the threading of the web, whereby the end of the web is passed through the paper machine by means of the edge strip cut in the web, the edge strip being narrower |
| 4927613 |
Process for removing a constituent from a hot gas stream by exothermic ionic reaction of the con |
May 22, 1990 |
| A process for causing gaseous trace element particles to pass from a flowing hot gas into a fine particulate material by means of water. A mixture of the hot gas and water drops is caused to flow substantially upwards at such a velocity that the water drops remain in the gas flow and |
| 4923568 |
Dewatering zone in a papermachine |
May 8, 1990 |
| A joint dewatering zone of wires for dewatering a web to be formed in a two-wire papermachine having a first wire loop and a second wire loop, includes a first forming roll which is situated inside the second wire loop and other dewatering means which are situated after the first forming |
| 4922990 |
Press section frame in a paper machine |
May 8, 1990 |
| The invention relates to the press section in a paper machine. It comprises a roll combination (1-5), the rolls of which form one or a plurality of nips (N1, N2, N3). In addition, the press section comprises members for guiding the paper web through the press section and members for guid |
| 4915791 |
Roll with blades rotatably mounted within it in the forming section of a paper machine |
April 10, 1990 |
| The invention relates to a roll (8) for the forming section of a paper machine or the like, comprising a perforated shell (17) for removing water from a fibre suspension through holes (18) in the shell (17) into the roll (8) and being arranged to be mounted rotatably in the machine. A wi |
| 4899461 |
Method of drying a paper board or paper web |
February 13, 1990 |
| A method for drying a fibre web such as a paper or paper board web, wherein air is first removed from the web and a dryer felt, whereafter they are led together between two parallel metal bands moving at the same speed as the web and the felt. For drying the web, the band on the side of |
