Abstract: A levitation process for producing fire-polished gobs is provided. The process includes feeding a glass slug into a levitation mold and reducing a through-flow of the fluid between the glass slug and the levitation mold. The levitation mold includes a membrane of a porous material.

Abstract: A method is described for making a float glass convertible into a glass ceramic, by which a largely crystal fault-free glass can be produced. In this method the glass is cooled from a temperature (TKGmax), at which a crystal growth rate is at a maximum value (KGmax), to another temperature (TUEG), at which practically no more crystal growth occurs, with a cooling rate, KR, in ° C. min?1 according to: KR UEG KGmax ? ? ? ? T UEG KGmax 100 · KGmax , wherein ?T=TKGmax?TUEG, and KGmax=maximum crystal growth rate in ?m min?1. The float glass has a thickness below an equilibrium thickness, a net width of at least 1 m and has no more than 50 crystals with a size of more than 50 ?m, especially no crystals with a size of more than 10 ?m, per kilogram of glass within the net width.

Abstract: An optically detectable, floatable arsenic- and antimony-free, glazable lithium-aluminosilicate glass that can be prestressed and the glass ceramic converted therefrom are described. The glass or the glass ceramic has a composition (in % by weight based on oxide) of essentially SiO2 55-69, Al2O3 19-25, Li2O 3.2-5, Na2O 0-1.5, K2O 0-1.5, MgO 0-2.2, CaO 0-2.0, SrO 0-2.0, BaO 0-2.5, ZnO 0-<1.5, TiO2 1-3, ZrO2 1-2.5, SnO2 0.1-<1, ?TiO2+ZrO2+SnO2 2.5-5, P2O5 0-3, Nd2O3 0.01-0.6, CoO 0-0.005, F 0-1, B2O3 0-2.

Abstract: A method of controlling wireless messaging between mobile apparatuses and an onsite office in a worksite, including: dividing the worksite area into elementary cells mapped in correspondence with the topology of the area and into and communication zones, establishing at least one updatable communication attribute value pertaining to a parameter of wireless communication, establishing at least one worksite management attribute value pertaining to a parameter other than a wireless communication parameter of the worksite at that cell, storing values of the worksite and communication attributes, forming a worksite management message with an electronically readable content containing at least one worksite management attribute value, accessing the memory to obtain at least one current communication attribute value, and establishing a wireless communication to or from the communication zone to send or receive the management message on the basis of the current communication attribute value(s) electronically accessed

Abstract: The present invention shows a crane control of a crane which includes at least one cable for lifting a load, wherein at least one sensor unit is provided for determining a cable angle relative to the direction of gravitational force. Furthermore, there is shown a crane control for driving the positioners of a crane which includes at least one first and one second strand of cables for lifting the load, with a load oscillation damping for damping spherical pendular oscillations of the load, wherein first and second sensor units are provided, which are associated to the first and second strands of cables, in order to determine the respective cable angles and/or cable angular velocities, and the load oscillation damping includes a control in which the cable angles and/or cable angular velocities determined by the first and second sensor units are considered. Furthermore, a corresponding crane and a method are shown.

Abstract: A method for making a float glass convertible into a glass ceramic, by which a largely crystal fault-free glass can be produced. In this method the glass is cooled from a temperature (TKGmax), at which a crystal growth rate is at a maximum value (KGmax), to another temperature (TUEG), at which practically no more crystal growth occurs, with a cooling rate, KR, in ° C. min?1 according to: KR UEG KG max ? ? ? ? T UEG KG max 100 · KG max , wherein ?T=TKGmax?TUEG, and KGmax=maximum crystal growth rate in ?m min?1. The float glass has a thickness below an equilibrium thickness, a net width of at least 1 m and has no more than 50 crystals with a size of more than 50 ?m, especially no crystals with a size of more than 10 ?m, per kilogram of glass within the net width.

Abstract: A pull-out slide for drawers can include a cabinet member, a drawer member, with a unit which defines the closed position of the slide and/or the drawer, and which acts on the slide and/or the drawer and whereby a depth adjustment of the slide and the drawer is planned for. A holding device can be present, that engages the unit intermittently whereby the holding device and/or the unit is depth adjustable on the slide and/or height and/or side adjustable. A drawer can comprise a pull-out slide described herein.

Abstract: Operations in a worksite (20) are managed by networking at least some items of apparatus (4, 16, 24, 26, 30, 28, 34) which perform tasks in connection with said worksite and which receive and/or send data. The items of apparatus are organized in hierarchical levels according to a determined dependency relationship of the worksite. Communications are made with an electronic data network comprising management means (74, 76, 66, 64) cooperating with a plurality of communications interfaces (42-46), a given item of apparatus having a data link with a specified communications interface. The management means stores a correspondence between each item of apparatus and an address structure reflecting the hierarchical position of that item of apparatus (4, 16, 24, 26, 30, 28, 34) in the determined dependency relationship of the worksite.

Abstract: A guidance system for manually guided vehicles such as reach stackers or straddle carriers is disclosed. In accordance with the disclosure, the position of the vehicles is permanently automatically detected and supplied to a guiding system for carrying out. Starting from transport job lists made available externally, the travel jobs are assigned to the individual vehicles in an optimized form. Suitable travel routes for the travel jobs are determined and the travel jobs, including the travel routes, are automatically transferred to the vehicle operators. Their carrying out is monitored.

Abstract: A motor vehicle chassis and a water-cooled internal combustion engine attached thereto has a cooling system comprising coolant-conducting pipes least one radiator element, and a coolant pump produces forced flow in the cooling circuit. A portion of the cooling pipe system as a distributor pipe module is attached to the vehicle's axle support.

Abstract: The present invention relates to a system for the automatic detection of load cycles of a machine for the transferring of loads, wherein the machine includes a lifting apparatus for the raising of the load and a transport apparatus for the horizontal movement of the load, comprising: a load change detection for the automatic detection of a load change at least on the basis of the output signals of a lifting force measurement apparatus, a load position detection which detects the position of the load in at least a horizontal direction and a load cycle detection for the automatic detection of a load cycle, wherein the load cycle detection takes place at least on the basis of the output signals of the load change detection and of the load position detection.

Abstract: The present disclosure relates to a system for determining the load mass of a load carried by a hoist cable of a crane, said system comprising a measurement arrangement for measuring the cable load in the hoist cable and a calculation unit for determining the load mass on the basis of the cable force, wherein the calculation unit has a compensation unit which describes and at least partly compensates the effect of the indirect determining of the load mass via the cable force in a model.

Abstract: The invention relates to a method for controlling a surface-modifying machine, wherein information on the desired condition and on the actual condition of ground to be prepared is provided and is used to derive control statements for the machine based on a comparison of the desired and the actual condition. The information on the actual condition is represented by a point cloud as a spatial distribution of discrete surface points. In order to derive control statements, at least two surface points each from the point cloud are used for every horizontal position so that non-differentiated information can be derived that for example also allow to identify various planes.

Abstract: The present invention relates to a device for measuring mechanical quantities, in particular for detecting tensile forces, thrust forces and bending deformations, as well as to a method for measuring mechanical quantities and to the use of a device for measuring mechanical quantities.

Abstract: The present invention comprises a method for the control of a drive of a crane, in particular of a slewing gear and/or of a luffing mechanism, wherein a desired movement of the boom tip serves as an input value on the basis of which a control parameter for the control of the drive is calculated, characterized in that the oscillation dynamics of the system comprising the drive and the crane structure are taken into account in the calculation of the control parameter to reduce natural oscillations. The present invention furthermore comprises a method for the control of a hoisting gear of a crane, wherein a desired hoisting movement of the load serves as an input value on the basis of which a control parameter for the control of the drive is calculated.

Abstract: The present invention relates to a crane for handling a load hanging on a load cable, comprising a slewing gear for rotating the crane, a luffing gear for luffing up the boom, and a hoisting gear for lowering or lifting the load hanging on the load cable, with a control unit for calculating the actuation of slewing gear, luffing gear and/or hoisting gear, wherein the calculation of the actuation commands for actuating slewing gear, luffing gear and/or hoisting gear is effected on the basis of a desired movement of the load indicated in Cartesian coordinates.

Abstract: The present invention relates to a crane control for the control of a hoisting gear of a crane which takes account of oscillation dynamics based on the elasticity of the hoist rope on the control of the hoisting gear and reduces them by a suitable control of the hoisting gear.

Abstract: The present invention relates to a hydraulic system with a feed pump for feeding hydraulic fluid, wherein the feed pump is driven by a hydraulic drive motor. The invention furthermore comprises a method for feeding hydraulic fluid into a hydraulic system via a feed pump, wherein the feed pump is driven by a hydraulic drive motor.

Abstract: A method for controlling the orientation of a crane load is described, wherein a manipulator 416 for manipulating the load is connected by a rotator unit to a hook suspended on ropes 410 and the rotational angle ?L of the load is controlled by a control unit using the moment of inertia JL of the load as most important parameter. The control unit is an adaptive control unit wherein the moment of inertia JL of the load is identified during operation of the crane based on data obtained by measuring the state of the system.

Abstract: A control system for a boom crane, having a tower and a boom pivotally attached to the tower, a first actuator for creating a luffing movement of the boom, a second actuator for rotating the tower, first means for determining the position rA and/or velocity {dot over (r)}A of the boom head by measurement, second means for determining the rotational angle ?D and/or the rotational velocity {dot over (?)}D of the tower by measurement, the control system controlling the first actuator and the second actuator. In the control system of the present invention the acceleration of the load in the radial direction due to a rotation of the tower is compensated by a luffing movement of the boom in dependence on the rotational velocity {dot over (?)}D of the tower determined by the second means. The present invention further comprises a boom crane having such a system.