Abstract: Flexible polyurethane foam is made by mixing prepolymer with foam-forming ingredients comprising isocyanate and water which react to give carbon dioxide. The prepolymer is hydroxyl-tipped, being made by reacting polyol with less than the theoretical proportion of isocyanate required to react with available hydroxyl groups of the polyol. The prepolymer is a new storage stable starting material for use in making flexible polyurethane foam, and the foam produced with the prepolymer has advantageous properties with regard to hydrolysis resistance. The prepolymer may be made with low or high viscosity by appropriate selection of the proportion of isocyanate which reacts with the polyol. At high viscosities cell structure can be advantageously controlled by appropriate gasification or degasification during foaming.

Abstract: A swimming pool designed for stationary swimming uses Venturi-based eductor jets to generate a forceful water flow augmented by entrained pool water drawn from within the pool enclosure. The eductor jets use the kinetic energy of the inlet flow to entrain the low-pressure pool water, completely mix the two, and then discharge the mixture as an augmented outlet flow. The energy from the motive inlet flow is transferred to the entrained pool water via the Venturi effect. As the motive inlet water passes through a tapered nozzle in the eductor jet, kinetic energy increases and pressure decreases. This produces a Venturi effect which draws surrounding pool water into the Venturi orifice of the eductor jet. Consequently, the volume of the outlet flow from the eductor jets is 3 to 5 times the volume of the inlet flow. A larger and more powerful stream of water is thereby discharged into the pool enclosure and provides optimal resistance for in-place swimming in an energy-efficient manner.

Abstract: Folded printed products (6) are supplied with trailing fold-edges (6.3) from above towards a clamping gap (1) and are pushed out of the clamping gap (1), in order to be deposited on, for example, saddle-like supports (7). As soon as the leading edge of each printed product (6) exits from the clamping gap (1), the printed product (6) is opened by two printed product parts (6.1 and 6.2) being separated from each other, and the opened printed products are positioned above the support (7). Gripper elements (11) are provided for gripping the trailing fold-edge (6.3) of each printed product (6), before it exits the clamping gap (1), thus preventing a free fall of the printed products (6) onto the support (7) when the trailing fold-edge (6.3) exits the clamping gap (1). The gripper elements (11) grip and guide the printed products towards the support (7). If a plurality of supports (7) is provided, and these are conveyed continuously and in succession past, below the stationary clamping gap (1), the fold-edges (6.

Abstract: A swimming pool suitable for either in-ground or above-ground installations utilizes a multi-tiered modular sidewall configuration, a peninsular console and eductor jets to achieve greater recreational utility within a compact footprint.

Abstract: Flexible polyurethane foam is made by mixing prepolymer with foam-forming ingredients comprising isocyanate and water which react to give carbon dioxide. The prepolymer is hydroxyl-tipped, being made by reacting polyol with less than the theoretical proportion of isocyanate required to react with available hydroxyl groups of the polyol. The prepolymer is a new storage stable starting material for use in making flexible polyurethane foam, and the foam produced with the prepolymer has advantageous properties with regard to hydrolysis resistance. The prepolymer may be made with low or high viscosity by appropriate selection of the proportion of isocyanate which reacts with the polyol. At high viscosities cell structure can be advantageously controlled by appropriate gasification or degasification during foaming.

Abstract: Folded printed products (6) are supplied with trailing fold-edges (6.3) from above towards a clamping gap (1) and are pushed out of the clamping gap (1), in order to be deposited on, for example, saddle-like supports (7). As soon as the leading edge of each printed product (6) exits from the clamping gap (1), the printed product (6) is opened by two printed product parts (6.1 and 6.2) being separated from each other, and the opened printed products are positioned above the support (7). Gripper elements (11) are provided for gripping the trailing fold-edge (6.3) of each printed product (6), before it exits the clamping gap (1), thus preventing a free fall of the printed products (6) onto the support (7) when the trailing fold-edge (6.3) exits the clamping gap (1). The gripper elements (11) grip and guide the printed products towards the support (7). If a plurality of supports (7) is provided, and these are conveyed continuously and in succession past, below the stationary clamping gap (1), the fold-edges (6.

Abstract: The invention relates to an installation and a process for the production of foam in a continuous block foam process in which the height of a foam-forming mixture along a conveyor is measured and a correcting variable as a function of deviation of the actual height risen from the standard height is determined.

Abstract: The invention relates to an installation and to a process for the production of foam in a continuous foaming process with the following steps, measuring actual surface temperatures of the foam or the facing layers along a conveying direction and determining a control variable for the foaming process as a function of a deviation of the actual surface temperatures from the nominal surface temperatures.

Abstract: The invention relates to an installation and a process for the production of foam in a continuous block foam process in which the height of a foam-forming mixture along a conveyor is measured and a correcting variable as a function of deviation of the actual height risen from the standard height is determined.

Abstract: A conveyor system conveys a plurality of printed products along a path of travel in an imbricated stream and such that a border region of each printed product is exposed by the imbricated overlap. A contrast panel (14), which forms a text panel (12), is applied to the exposed border region of each printed product (10). The contrast panel is provided with the text (18) and the contrast panel forms a contrast with respect to the text (18), with the result that the latter can be immediately seen and read easily. In one embodiment, the contrast panel is applied by printing, and in another embodiment, the contrast panel comprises a separate label which is adhesively applied.

Abstract: For splitting-up a supply stream (2) of piece goods into a plurality of conveying away streams, the supplied objects (3) are guided onto a plurality of conveying away paths (4.1, 4.2, 4.3) in a predetermined splitting-up sequence. The device includes a supply device for serially supplying objects (3) to a split-up point (1) and for positioning the objects (3) for being taken over by holding device (6.1, 6.2, 6.3) in the split-up point (1). The device also has a plurality of conveying away systems, each one of which defines one of the conveying away paths. Of the conveying away systems advantageously each one has a closed-loop rail track (5.1, 5.2, 5.3) and holding devices (6.1, 6.2, 6.3) movable along the rail track independently of one another and with variable distances between one another. The rail tracks (5.1, 5.2, 5.3) of the conveying away systems converge toward the split-up point (1), run through the split-up point (1) parallel to one another, and diverge after the split-up point (1).

Abstract: For splitting-up a supply stream (2) of piece goods into a plurality of conveying away streams, the supplied objects (3) are guided onto a plurality of conveying away paths (4.1, 4.2, 4.3) in a predetermined splitting-up sequence. A device employed for this purpose comprises a supply means for serially supplying objects (3) to a split-up point (1) and for positioning the objects (3) for being taken over by holding means (6.1, 6.2, 6.3) in the split-up point (1). The device also comprises a plurality of conveying away systems, each one of which defines one of the conveying away paths. Of the conveying away systems advantageously each one comprises a closed-in-itself rail track (5.1, 5.2, 5.3) and holding means (6.1, 6.2, 6.3) movable along the rail track independently of one another and with variable distances between one another. The rail tracks (5.1, 5.2, 5.

Abstract: A conveyor system conveys a plurality of printed products along a path of travel in an imbricated stream and such that a border region of each printed product is exposed by the imbricated overlap. A contrast panel (14), which forms a text panel (12), is applied to the exposed border region of each printed product (10). The contrast panel is provided with the text (18) and the contrast panel forms a contrast with respect to the text (18), with the result that the latter can be immediately seen and read easily. In one embodiment, the contrast panel is applied by printing, and in another embodiment, the contrast panel comprises a separate label which is adhesively applied.

Abstract: A storage for photographic material with a base (20, 120, 220) rotatable around an axis (30), with an input arrangement (16, 116) positioned at an outer circumference of the base, with a removal arrangement (18, 118) positioned at the axis (30, 130) of the base (20, 120, 220), whereby two photographic material belts are wound/unwound, and, in particular, one close to the axis (30, 130) and one close to the outer circumference of the base (20, 120), whereby a loop (42) between the belts leads to a photographic material exchange from the outer belt to the inner belt, whereby the winding direction is preferably reversed, whereby, the base (20, 120) is divided into two sections (12, 14; 112, 114; 212, 214), whereby the one section (14; 114; 214) surrounds the other section (12; 112; 212).

Abstract: The uppermost printed product is lifted from an intermediate stack, that was loaded from below, by a suction arrangement. The lifted product is fed into the active range of a pushing arrangement that is driven in synchronism with the suction arrangement. The pushing arrangement has stops which are arranged one behind another at a distance and circulate along a closed peripheral path and function to push the printed products released by the suction arrangement, one after another, by acting on the trailing edge of the printed products. The printed products are conveyed from the intermediate stack into the effective range of a conveying apparatus.

Abstract: A structural wall unit for retaining wall structures of in ground swimming pools, whereupon assembly of a plurality of wall units in series, a circuitous pathway is formed which defines the swimming pool shape. In accordance with one aspect of the present invention, each unit includes end surfaces comprising folded portions at the corners thereof for reinforcement of the wall unit, at least one of the surfaces being formed for engagement with a corresponding end surface of an adjacent unit. The units are fastened one to the other so as to form the circuitous wall structure. Each unit includes a base or lower wall for supporting the unit in an upright position and a gusset plate having apertures adapted for cooperation with matching holes on a pair of adjacent folded portions of an end surface, each of the folded portions being adapted to overlie the gusset plate.

Abstract: A rotatably mounted support arrangement comprises two receiving claws having substantially V-shaped grooves. Diametrically opposite these receiving claws there are provided two clamping claws which also comprise substantially V-shaped grooves. A winding core comprises on the inner side thereof an annular rim or rib having a substantially V-shaped configuration. This annular rim or rib is supported in the grooves of the receiving claws and is pressed against the latter by means of the clamping claws. For releasably clamping the winding core, the clamping claws can be brought from an idle or ineffectual position, in which the clamping claws do not bear against the winding core, into an operative or effectual position in which the clamping claws clamp or fixedly hold the winding core together with the receiving claws. The winding core with the product core or wound package thereof is clamped at the supporting arrangement and rotatably supported conjointly with the latter.

Abstract: A plurality of entrainment members can be individually summoned or called for by a release or summoning mechanism and can be individually and successively coupled at a substantially uniform spacing with respect to one another by a shuttle or transfer wheel with an endless revolving driven traction element. In order to reduce the technical constructional expenditure and the noise emission during operation of the clock conveyor there are provided magnetic devices for coupling the entrainment members in force-locking or frictional manner with the endless revolving driven traction element.

Abstract: The package support device comprises a hollow cylindrical rotatable winding core member possessing a substantially cylindrical support surface for the wound-up printed products. At the winding core member there is formed a ring-shaped groove extending in the circumferential direction of the winding core member and open towards the outside. Accommodated within such ring-shaped groove is a winding band wound upon the winding core member. The ring-shaped groove can be covered by a cover member supported at the winding core member. This cover member rotates with the winding core member and is displaceable in the direction of the lengthwise axis of such winding core member in order to expose the ring-shaped groove. The cover member can also be constructed to be rotatable in relation to the winding core. A throughpass opening for the winding band is formed in the cover member.

Abstract: An endless chain is guided in each one of two adjacently extending guide channels, for entraining articles or objects to be conveyed, such as newspapers delivered in an imbricated formation. A guide channel section is displaceably arranged transversely to a receiving station in order that the articles or objects can be conducted to the receiving station not only from one supply station but also from a further supply station as well. The displacement of the guide channel section is executed in a region between two transition sections which extend in the same direction relative to each other. In such arrangement, displacement of the guide channel section can be effected without altering the length of the guide channel.