Abstract: A pig launching system and a pig receiving system for use in cleaning a subsea flowline. This invention further relates to a method of propelling a pig through a flowline using a pressurized accumulator, a method of assembling a subsea pig receiver in a flowline using a remotely operated vehicle, and a method of collecting a sample from a subsea flowline, using an accumulator connected to a pig launcher.

Abstract: A control arrangement for displacing the guide bar in a warp knitting machines comprises an input arrangement for the setting certain characteristic data defining the desired shogging pattern. There is also provided a first storage section for storing data for various transition curves also relating to shogging patterns. A computer can generate a continuous displacement function based on the characteristic data and the transition curves. An output arrangement can reads out the values of the displacement function in dependence upon the rotation angle position of the main shaft 7 of the knitting machine. The values this read out are used as position target values for the guide bar. This enables flexible adaptation to produce very different patterns in high machine speed.

Abstract: In a warp knitting machine at least one swingable guide bar is driven in a shogging direction. This displacement is achieved through a drive member via a hinged push rod in dependence upon a path time function. This path time function is formed by overlapping a ground function with a compensation function. The ground function is the targeted displacement movement of the guide bar for proper lapping. The compensation function compensates for an axial mislap and possible collision during the swing-through of the guide bar. The compensation occurs at least during that segment corresponding to the passage of the guides through the needle gaps. Preferably however, compensation occurs over the entire ground function. This compensation substantially reduces the danger of collision between the guides and the needles.

Abstract: Method for the purification of a gas stream loaded with organic gases or vapors, especially up to near the saturation limit, in a sorption filter, in which the gas stream loaded with organic gases or vapors is mixed with a gas conducted in a loop, and together with the latter is conducted through the sorption medium layer of the sorption filter, the volumetric flow of the circulating gas being larger than the volumetric flow of the gas to be purified. After the mixed gas stream is conducted through the sorption medium layer, a partial stream of the now purified gas is branched off and removed, where the volumetric flow of the branched-off gas corresponds to the volumetric flow of the gas to be purified and where the remainder of the purified gas is returned to the mixing point as circulating gas and is mixed there again with the gas to be purified.

Abstract: Method for operating a sorption filter in which the sorption filter separates absorbable admixtures of a gas stream and is regenerated by a heated gaseous desorption medium after being loaded to an equilibrium loading corresponding to the admixtures. The gas stream to be purified is conducted through at least two sorption material layers, with the flow going through all sorption material layers in the manner of a parallel circuit. In the desorption of the loaded sorption material layers, the gaseous desorption medium flows in series through the sorption material layers.

Abstract: Method for obtaining a substantially dehydrated desorbate in the desorption of sorption materials loaded with a gaseous, recirculated desorption medium. The desorption medium is heated up in a first heat exchanger before it enters into the loaded sorption material. Desorbate is removed from the desorption medium by cooling in a second heat exchanger acting as a desorbate condenser, and water vapor is removed at least partially by adsorption in an adsorptive drier. The cooled and dried desorption medium is returned by a circulating blower to the first heat exchanger. The desorption medium before entering into the adsorptive drier, is cooled down in the initial phase of the desorption period in the desorbate condenser, first, to near the water saturation limit. The cooled-down desorption medium with the water vapor saturation which is high in this initial phase, flows toward the adsorptive drier and is subsequently heated in dry condition.

Abstract: There is provided a slider needle for warp knitting machines, comprising a slider. The slider is guided by the opposing side walls of a slot cut in the front face of a needle shaft. The opening of the slot carrying the slider, opposite the slot base, is widened or flared in such a manner that there is provided such a separation as to prevent contact between the slider and the forward portion of the slot wall. Thus, abrasion of the forward face into sharp edges which could negatively affect the stitch threads is thereby avoided.

Abstract: The recovery of water-free desorbates from adsorption filters hampered not only by desorption with water vapor but also by water which is adsorbed at the adsorption media from the gas or the air to be purified and which water is likewise driven out during the desorption. It has now been found that desorbate without water can be recovered if the gaseous desorption medium is pre-dried in a water sorption filter with an adsorption medium having water-selective action, before entering the condenser-cooler. Bypasses avoiding the sorption water reservoir as well as the condenser-cooler also permit operating conditions which go beyond the normal desorption, namely, desorption with increased temperature for driving out less volatile residual loads as well as reactivating desorption. In a particular embodiment, the sorption heat accumulator can be combined with the condenser-cooler, an embodiment which can be employed particularly for recovery equipments.

Abstract: In a control arrangement for the motor of a winding arrangement, such as a partial warp beam in a warp knitting machine, there is provided a controller. The controller controls the rate of rotation of the motors of the turning arrangements that influence thread consumption and ware takeoff, in dependence on a main shaft signal, a feedback signal and an input size signal. The control arrangement is equipped for the storage of a program containing many input sizes which are addressable sequentially for the control arrangement, in dependence upon the main shaft signal. In particular, a data memory may be provided with a plurality of addresses for the production of differentiable input sizes. An address caller is controlled by the main shaft signal and calls out sequentially the different input sizes for the control arrangement. As a controller, a digital computer is foreseen.

Abstract: A measuring arrangement for a machine winding arrangement can determine a process variable related to the length of a wound-up or let-off material. A rotational angle signal is extracted from a rotatable winding carrier. In addition this angle signal can also contain information concerning the direction of rotation of the winding arrangement. The process variable is then calculated from this turning angle signal and calculation data, by means of a computer. The calculation data, transmitted from an input device, include at least values which are concerned with the diameter of the winding and thickness of the winding layer. The computer can contemporaneously be utilized to calculate the desired amount of rotation of a beam motor from: the process variable, a setting amount from the input device and a main shaft signal indicating rotation of the main shaft of the winding arrangement. The arrangement is particularly suited for the winding up or letting off of thread of a textile machine.

Abstract: A knitting needle set for a warp knitting machine has a needle bar and a plurality of hooked needles each of substantially equal length clamped to the needle bar. The plurality of needles each have a hook end and each have at substantially the same distance from its clamping position an insertion opening bordered by the hook end. This insertion opening leads to an interior hook space. The plurality of needles are divisible into at least two groups. The spacing from the zenith of the concave surface of the hook space to the hook end in each of the needles of a given one of the groups differs from that of another one of said groups.

Abstract: A warp knitting machine has a main shaft driven by an electric motor which is powered by a main circuit. The machine has at least one supplemental, electrically driven arrangement for influencing the thread takeoff of the machine. This electrically driven arrangement is connected to the main circuit. Also included is an electrically operable brake coupled to the main shaft for braking it in response to interruption of the main circuit.

Abstract: Thermal regeneration of charged solid adsorption material by passing a heated gaseous regeneration medium therethrough. Regeneration is combined with a heat pump in which a cooling medium flows in a cooling medium circuit by propelling means which directs the cooling medium in heated condition to a condenser of a first heat exchanger of the heat pump and then to a vaporizer of a second heat exchanger of the heat pump. The gaseous regeneration medium is heated prior to entrance to the adsorption material by passing it through the first heat exchanger, and the discharged regeneration medium and desorbate are cooled by passing through the second heat exchanger.

Abstract: A minimum friction slider needle for use with warp knitting machines includes a shank having a slot provided therein. The bottom portion of the slot is provided with a raised portion which is the only portion of the shank that comes into contact with the slider member in operation.

Abstract: Purification of a stream of air or gas containing a mixture of vaporous or gaseous impurities of different volatilities and selective adsorption and recovery of the impurities in adsorption filters by passing the stream containing impurities through at least two adsorption filters connected in tandem, maintaining the temperature of adsorption in the first adsorption filter sufficiently high to selectively adsorb the impurities of low volatility, passing the stream containing impurities of higher volatility from the first adsorption filter through at least the second adsorption at a temperature lower than the temperature in the first adsorption filter to selectively adsorb the impurities of higher volatility. Temperature of adsorption may be obtained by passing the stream through a heat exchanger preceding the filter.

Abstract: Method of separating vaporous or gaseous impurities from an air or gas flow by means of an adsorption filter wherein, after the filter has attained a predetermined loading of the impurities, the impurities absorbed in the filter together with an inert gas produced by stoichiometric combustion and conducted in a circulatory loop through the adsorption filter, are fed desorbed and together with excess gas escaping from the circulatory loop to a combustion chamber and consumed in the combustion chamber with excess air adequate for complete combustion includes supplying the heat energy necessary for the desorption to the ineat gas conducted in the circulatory loop from exhaust gas of the combustion chamber through a heat exchanger traversed by both gas flows and separating both of the gas flows from one another.

Abstract: Method and apparatus for purifying an air or gas flow of combustible vaporous or gaseous impurities by passing air or gas through an adsorption filter, desorbing the filter by passing a heated inert gas, and prior to passing the hot inert gas through the adsorption filter, passing a cold protective gas through the adsorption zone thereby preventing undesired ignition of the desorbate and the burning of carbon. Provision is made for spaced closing elements at the gas inlet and the gas outlet of the adsorption chamber with introduction of protective gas in the interspace between the closing elements.

Abstract: Apparatus and method for the adsorption in sorption filters of impurities from a stream of air or gas and for the desorption of the impurities by an inert gas after the filter is charged to a predetermined level, in which the sorption filter is a ring layer filter with a container surrounding a sorption medium layer composed of concentric perforated metal sheets with an adsorption medium disposed in between, in the form of cylindrical rings. An outer jacket surrounds the container with a gap therebetween through which coolant flows. Near the top of the gap are discharge openings closed by louvers which open automatically upon increase in pressure in the cooling gap.

Abstract: Apparatus for purifying an air or gas flow of combustible vaporous or gaseous impurities by passing the air or gas through an adsorption filter and charging the filter to a predetermined level. After the filter is so charged, the air or gas flow is interrupted and the filter is desorbed by passing a heated inert gas generated by stoichiometric burning of hydrocarbons through the filter.

Abstract: A minimum friction slider needle for use with warp knitting machines includes a shank having a slot provided therein. The bottom portion of the slot is provided with a raised portion which is the only portion of the shank that comes into contact with the slider member in operation.