Abstract:
In a method, when using a single-grip harvester head for felling and processing trees, of controlling the press power which, by means of a limbing knife assembly (6), is exerted on a stem (3) which is horizontally fed through th head with its butt end first, the diameter of the stem is measured and the press power is reduced in accordance with a control diagram as the diameter decreases during the feeding. The measured diameter values are registered, and each measured diameter value is compared with a predetermined diameter value which is selected from the diameter values of the stem (3) which are previously registered during the feeding of the stem. If a measured diameter value is found to equal or be greater than this predetermined diameter value, the press power is increased to a corrective power value, which is maintained until a later measured diameter value falls below a reference value.
Abstract:
A process for metal cutting using a water-mixed cutting compound and subsequent cleansing and corrosion protective treatment wherein an oil in water emulsion is used as a cutting compound which contains; (I) an amount emulsifier system consisting of: (a) ethyoxylates/propoxylates of fatty alcohols having 8 to 18 carbon atoms in the alcohol, which contains 2 to 6 ethylene oxide units and 4 to 8 propylene oxide units; (b) fatty alcohols and/or fatty alcohols propoxylates having 12 to 24 carbon atoms in the alcohol and 0 to 3 propylene oxide units and/or distillation residues of such fatty alcohols; In a ratio by weight, a:b=1:0.2 to 0.2:1; and (ii) corrosion inhibitory; and an aqueous solution or suspension is used for cleansing an anti-corrosion treatment which contains the same emulsifier system and the corrosion inhibitors as the cutting compound. The cutting compound and the cleansing and corrosion protective treatment material comprise a systems for treating the metal during cutting and cleansing.
Abstract:
A document handling device (12) comprises a first endless conveyor (6), which is arranged to be intermittently driven in a first direction of feed (F) and has drivers to fetch documents (2) at document discharging stations (5) and put them together into sheaves (3). The documents are to be manipulated, downstream of the document discharging stations (5) seen in the direction of feed (F), in sheaves at a first sheaf discharging station (8), such as a document manipulating unit, in which the sheaves of documents (3) from the first conveyor (6) are inserted into envelopes (4) placed on a second endless conveyor (9), which is parallel to the first conveyor (6) and driven synchronously therewith. The first conveyor (6) is intermittently drivable also in a second direction opposite to said first direction of feed and a second sheaf discharging station (14), such as a stapling or plastics coating unit, is arranged upstream of the document discharging stations (5) seen in said first direction of feed (F).
Abstract:
A single-grip harvester head comprises a frame (1, 2), which defines a tree feeding path, and two feeding roller arms (5), which are pivotable in relation to the frame (1, 2) about a pivot axis (A1) each defined by a pivot pin (6) and which support a rotatable feeding roller (7) each. Each feeding roller arm (5) is formed as an angular lever with two lever legs (5a, 5b), the feeding roller (7) being supported at the free end of one of the legs (5a) and the pivot pin (6) of the feeding roller arm (5) being positioned in the angular area between the legs. The two pivot axes (A1) are located in a common plane perpendicular to the tree feeding path. Each pivot pin (6) is articulated to the frame (1, 2) at one of its ends by means of a ball joint (13) and controlled at its other end, in such a way that the pivot axis (A1) is movable in said plane but fixed in a direction perpendicular to this plane. The other leg (5b) of each feeding roller arm (5) is articulated to a slide (17) by means of a ball joint (16), which slide is reciprocatable in the direction of the tree feeding path in relation to the frame (1, 2) to maintain, in the pivoting of the feeding roller arms (5), a constant distance between the ball joints (16) by means of which the arms (5) are articulated to the slide (17).
Abstract:
An arrangement for releaseably attaching a unit to an attachment surface includes a first pair of cooperative engagement members and a second pair of cooperative engagement members. In each pair of cooperative engagement members, one member is fastened to the attachment surface, and the other member is attached to the unit. In each pair of engagement members, one engagement member is formed by a wedge member, and at least one engagement member in one of the pairs is movably attached in relation to its cooperative engagement member. On assembly and disassembly, respectively, the moveable engagement member can be displaced from the cooperative engagement member. In the engagement position, the movable engagement member is fastened against its cooperative engagement member by a tightening device, as a support surface of the unit is in close contact with a support surface on the attachment surface.
Abstract:
A device for measuring a gas flow (F) has a measuring body (1) in the form of a cylinder, and a heating device (12) for heating the measuring body. A slot (5) extends axially into the cylinder from one end thereof so as to divide a first portion of the cylinder into two symmetrical halves (6a, 6b). The heating device (12) is disposed in a second cylinder portion which is not divided by the slot (5). A temperature sensor (13) is arranged in the second cylinder portion, and a temperature sensor (14, 15) is arranged in each cylinder half (6a, 6b). For measuring a gas flow (F), the measuring body (1) is so disposed in the gas flow that the slot (5) extends at right angles to the gas flow with one half (6a) facing the gas flow and with the other half (6b) facing away from the gas flow. The measuring body (1) is heated by the heating device (12) to a temperature exceeding the ambient temperature by a predetermined value. The temperature is measured in each of the two symmetrical cylinder halves (6a, 6b), whereupon the gas flow is calculated on the basis of the measured temperatures.
Abstract:
A framework carrier adapted to move railway waggons outside a railway yard includes two first, longitudinal beams, each carrying a rail and two second, transverse beams adapted to co-operate with a transporting member, said transverse beams being adapted to locate the rails upon the carrier in alignment with the rails of the tracks, when the carrier is brought to rest against fixed stops at the track heads.
Abstract:
General cargo must be stowed differently when being transported by ships, or by railway waggons and trucks, respectively. To reduce the time a ship is tied up in port, a transhipping station is provided, where work can proceed before the ship arrives and after the ship has left port. This station is arranged so it is available along one side to railway waggons carried by special transport devices, remotely from railway tracks, at a second side is available to cargo-bigflats, suited for cargo handling on board ships, and possibly also, along a third side, being available to road trucks.