Abstract:
A roll support and adjustment mechanism for a wire or felt guide roll in a paper making machine has a linkage supporting a bearing at one end of the roll and pneumatic bellows for adjustably displacing the bearing. The linkage comprises a pair of links each pivotably connected to a support frame and to the free ends of the arms of an inverted Y-shaped bearing pedestal. The link pivot axes may be spatially related to ensure substantially linear displacement of the bearing.
Abstract:
In a press roll, which has an outer rotating roll mantle and, fitted inside the mantle, a core, which works as the supporting and fixing axle and against which one or several pressure cylinders directed toward the press nip have been propped at one end, the rotating roll mantle has been attached with bearings onto the fixed supporting mantle surrounding the core and the other ends of the pressure cylinders arranged to actuate the supporting mantle.
Abstract:
Projectiles are supported in parallel rows with the projectiles facing downwardly and having their tail portions spread apart. Each projectile is supported by a ring which extends around its largest diameter and an opening in a plate below the ring, the opening having its axis aligned with the axis of the ring. Each ring and opening pair supports a projectile with its axis at an oblique angle to the surface of a support plate to which the rings and plates in which the openings are formed, are secured. The arrangement is such that the topmost projectile of a vertical row is supported with its axis at a relatively small angle to the surface of the support plate, the next projectile is supported with its axis at a greater angle than the first projectile, etc., so the tail portions of the projectiles are spread apart in fan fashion and are readily accessible. The rings to support successive projectiles of a row are spaced apart by a distance equal to the diameter of a ring. The support plate is provided with suitable straps to carry the storing and transporting arrangement on the back of a man like a knapsack.
Abstract:
A device for automatically setting the elevation angle of the aiming attachment of a grenade launcher in response to adjusting the range scale to the desired range. The range scale is on the surface of a casing mounted on the launcher tube for rotation adjustment. A sleeve extends over the scale indicia to protect the indicia and has a viewing window with a hairline to permit accurate adjustment of the range scale casing. A cam at the end face of the casing cooperates with a follower on the support shaft of the aiming device to adjust the angular setting of the aiming device in response to setting the range scale. The range scale casing is rotatably supported by a clamp sleeve which connects the bipod to the upper end of the launcher tube. With the aiming device angle preset by adjusting the range scale, it is a simple matter to adjust the bipod to position the launcher tube at an elevation angle to fire a projectile the required range.
Abstract:
The paper machine comprises a horizontal cylinder, a slurry feed box opening onto the top side of the cylinder and the upper rim of the feed slice of which has been continued in order to form a roof-like upper lip between the feed slice and a feed roll placed on the cylinder at an approximate distance from the feed box in the direction of slurry flow, an endless felt or wire running from the feed roll along the cylinder towards the lower part of the same, an appropriate number of guiding and tension rolls for conducting said felt or wire back to the feed roll, a suction box or suction roll placed on the side of the feed roll opposite to that facing the cylinder and at the point where the slurry web and felt or wire depart from the cylinder surface, and possibly a compressed air box or equivalent placed above the felt or wire and after the feed roll, as seen in the direction of travel of the wire, approximately coincident with the gap remaining between the roof-like upper lip of the feed box and the wire. The horizontal cylinder is a suction cylinder which has therein a suction zone extending substantially from and including the upper roof-like lip continuously to the suction box or suction roll. The upper roof-like lip and suction cylinder form a first drying area for the slurry to form a partially dewatered web while the belt thereafter contacts the web against the surface of the suction cylinder over a major portion of the descending surface of the suction cylinder to form a second drying area in which suction and centrifugal force act upon the web to remove additional water.
Abstract:
A box structure which may be a suction box or blow box has a bottom wall, side walls, and an apertured cover and is mounted on a papermaking machine such that the cover is yieldably biased against a wire or felt carrying a paper web to dewater the web through the wire or felt or provide enhanced adherence of the web to the wire or felt. The entire box may be pivoted around a shaft and bracket and biased against the wire or felt by a spring connected to the bottom wall or the box may be immovable with a portion of the cover biased against the wire or felt by connection to a pivot arm and elastic tube.
Abstract:
AN APARATUS FOR FEEDING PAPER STOCK TO A PAPER MACHINE IN WHICH EVEN DISTRIBUTION OF THE PULP STOCK FREE FROM FIBER ACCUMULATIONS IS OBTAINED ACROSS THE ENTIRE WIDTH OF THE PAPER MACHINE. THE STOCK FLOWS FROM DISTRIBUTION TUBES INTO A CHAMBER THROUGH A PLURALITY OF TRANSVERSE INLET ROWS AND IMPINGES ON THE OPPOSITE WALL OF THE CHAMBER. THE INLET WALL IS PROVIDED WITH HUMPS WHICH EXTEND ACRODD THE CHAMBER, BOTH PARALLEL TO AND BETWEEN EACH PAIR OF INLET ROWS. THE STOCK FLOWS FROM THE CHAMBER THROUGH A DISCHARGE CHANNEL AND TO THE HEAD BOX OF THE PAPER MACHINE.
Abstract:
The invention relates to a device for burning waste liquor and to the disperser in the form of a nozzle used therein. The liquor is dispersed downwards from the corners of a furnace in showers of droplets in the form of full cones. The distance of the dispersers nozzle outlets from the bottom of the furnace is 45-60 percent of the sum of a narrower and a broader side of the furnace''s bottom plane and the geometrical axis of each of the dispersers is in a plane which forms an angle of 40* -50* with the sidewalls of the furnace, and the axis of each disperser forms an angle of 35* -55* with the vertical line of intersection of the furnace sidewalls. The top angle of the outlet in the outlet member is 60* -90* and the diameter of the outlet is 30-45 percent of the inner diameter of the nozzle body. The body of the nozzle comprises a detachable vortex element having four spiral grooves at an angle of 45* -60* to the transverse axis of the nozzle. The crosssectional flow area of the grooves is 45-55 percent of the inner cross-sectional area of the nozzle body portion.
Abstract:
A relief and raising device arrangement in a multinip calender or calender stack, in which upon a stationarily rotatable lower roll are mounted two or more superimposed rolls which are pivotably attached by arms to the calender body and in which each roll has its individual relief device attached to a common raising device. The relief devices are so attached to the raising device that the raising device will through the pneumatically regulated relief device constantly be in connection with the roll and that an adjustable free spacing for movement of the relief devices increases in the downward direction. The raising device is preferably a rod movable in vertical direction and attached to the lower or upper part of the calender body.