Abstract: A powered mobile unit for turf-care apparatus comprises a chassis, driven and steerable front wheels, rear wheels supporting the chassis, a seat carried at least mainly by the rear wheels, a linkage behind the rear wheels for the attachment of turf-treating implements; and a powered hydraulic unit capable of activating the linkage to lift an attached implement clear of the ground and of applying such downward pressure to the implement as to cause the rear wheels to be raised clear of the ground with an operator in the seat, while the unit is mobile.

Abstract: A dispenser comprises a hollow body adapted to receive a container of product to be dispensed, a dispensing mechanism disposed below the hollow body and means within the body for puncturing a container of product inserted therein to permit discharge of product from the container into the lower portion of the body. The lower portion of the body defines a reservoir of smaller volume than that of the container whereby the product accumulated in the reservoir acts to seal the punctured container and control the discharge of product therefrom. The container and the body are of complementary shape so that the container may only be inserted into the body in one position.

Abstract: A ceramic combustion chamber having air inlet ports and a double wall formation in the region of each inlet port. The two walls of the formation have a cavity between them which communicates with the inlet port. The double wall formation may be formed by an annular slot in the wall of the part. Alternatively, the double wall formation may be formed by two nested but spaced apart shells joined together at one end of the combustion chamber. The combustion chamber may be made by compressing ceramic powder in two steps to create a compact having an internal lost core or cores which are burned out, after which the ports are formed. Alternatively, the combustion chamber may be made by die casting ceramic powder around cores having the shape of the desired air inlet ports, after which the cores are burned out.

Abstract: Apparatus including a material reservoir, a tool having a mold cavity, and a cylinder having a plunger for pushing material received by the cylinder from the reservoir into the mold cavity. Equipment is provided for evacuating the reservoir, the mold cavity, and the cylinder. The reservoir is connected to the cylinder in a vacuum-tight manner. The evacuating equipment includes a vacuum pump and a vacuum reservoir, and valves permit optional connection of the material reservoir and the mold cavity to the vacuum pump or the vacuum reservoir. The volume of the vacuum reservoir is many times, i.e., 100 to 1000 times, greater than that of the mold cavity. A shutoff valve for disconnecting the mold cavity from the evacuating equipment is located in the immediate vicinity of the mold cavity. All the valves may be operated in a predetermined sequence by a control unit. The material reservoir may serve simultaneously as the vacuum reservoir.

Abstract: This invention is a circuit for reducing the power requirements for a subscriber's line where the loop length is short. The circuit senses the line current in the off-hook condition, and if the line current is above a predetermined threshold, it decreases the power supply voltage. When the line is restored to the on-hook condition, the original high voltage is restored. A substantial reduction in the cost and size of the power supply is thus obtained.

Abstract: An article comprising a component of ceramic material and a metal component has a metal felt located between opposed faces of the two components, the metal felt being permanently joined to both the ceramic face and the metal face to join the two components together. The metal felt may be brazed to both components, the brazing alloy being one which chemically combines with the ceramic material. The brazing alloy may be in the form of a foil placed between the metal felt and each of the components, and the brazing may take place in a vacuum.

Abstract: Known systems for recovering heat from refrigeration plant make no distinction between the different kinds of heat being recovered and use both low and high grade heat together to raise the temperature of say a water tank. The present invention provides a system in which low grade heat i.e. recovered latent heat is recoverable for low temperature heating loads, separately from superheat energy for high temperature loads. The system includes a countercurrent heat exchanger located between the condenser and compressor of a refrigeration plant, heat engine or like device recovered superheat from the exchanger being conducted to high temperature load and recovered latent heat from the exchanger being led to a low temperature load by heat transfer medium circulated through the heat exchanger and loads by a pump.

Abstract: A collapsible carton comprising inner and outer snugly nestable tubular shells. Each shell includes a series of side wall panels hingedly connected together along their side edges. The shells are telescopically adjustable into and out of a set-up relationship in which the overlying side wall panels define a set of double-walled carton sides. A plurality of foldable strips interconnect adjacent bottom edges of the overlying side wall panels, the strips being unfolded and parallel to their respective side wall panels when the inner shell is pulled out of the outer shell to its maximum extent, and the strips being folded and extending transverse to the side wall panels when the shells are telescoped into set-up relationship so as to define the carton floor.

Abstract: A flowmeter for measuring the flow rate of fluids, having a range from a very low to a very high value. An impeller is located in a pipe for rotation with the flow of fluid. Metallic vanes of the impeller pass through the field of an inductor which is in a series circuit with a capacitor. An oscillator applies a signal at the series resonant frequency of the capacitor and inductor. The envelope of the resulting high voltage signal across the inductor is detected, filtered, and the resulting output pulses in excess of a minimum threshold can be applied to a counting apparatus for establishing the flow rate with high sensitivity. Since the spacing between the impeller and pickup is not critical, a meter is provided which does not clog with magnetic or non magnetic particles suspended in the fluid to be measured. The meter pickup can also be used to sense the rotation rate of wheels or the like having metallic discontinuities, whereby the speed of a vehicle, the rotation rate of a shaft, etc. can be determined.

Abstract: A thermal turbomachine casing having a multilayer heat insulation liner including a metallic bond coat in direct contact with the casing wall, a ceramic heat insulation layer bonded to the bond coat, and preferably an abradable coating in the form of a porous, predominantly metallic, top layer bonded to the ceramic layer. A metallic honeycomb may be fixed to the casing wall, in which case the bond coat, ceramic layer, and top layer are within the cells of the honeycomb. The bond coat and ceramic layer may partially or completely fill the honeycomb cells. The layers may be deposited by flame or plasma spraying, preferably after peening the casing wall. Each succeeding layer is deposited before any cooling of the preceeding layer.

Abstract: A resilient sealing frame having two continuous slots, one for accommodating the periphery of a vehicle window and the other for accommodating a web projecting from the vehicle body into the vehicle opening which accommodates the window. One wall of each slot has a continuous groove, and a pair of closely spaced-apart holes extend from each groove to the exterior surface of the sealing frame. Each groove is flanked by prominent sealing lips which seal against a surface of its respective window or web. The short length of each groove between the pair of holes is plugged, such as with a resilient cord. Fluid cement is injected into one of the holes of each pair; the cement flows through the long length of each groove and when it reaches the other hole of the pair, further injection of cement is terminated, since the groove has been completely filled.

Abstract: A system for transferring a load from a first to a second AC power source, including a monitor for sensing both power sources and producing an output signal when the differences in voltage, frequency, and phase between the two sources are within prescribed limits. Contacts close, in response to the monitor output signal, to connect the second power source to both the first power source and the load. Other contacts open, to disconnect the first power source from the second power source and load, but only after the second power source has been connected to the first power source and the load. The contact arrangement may include an automatic transfer switch and separate contacts in parallel with one or both sets of transfer switch contacts, or it may involve two independently operable contactors, or it may involve a four position switch.

Abstract: Equipment for heating pulverulent products, including a relatively flat, vertically standing vessel for receiving the product, and a rotatable agitator whose axis of rotation is coincident with the longitudinal axis of the vessel. There are heating facilities in the bottom of the vessel. With these heating facilities, the bottom and side wall of the vessel are heated. The top of the vessel is insulated. The product is introduced into the vessel through the top and discharged in the region of the bottom of the vessel.

Abstract: A folding sofa bed frame having head, intermediate and foot bed sections pivotally connected end-to-end and supported and constrained by a linkage arrangement to move in a predetermined pattern between a folded position and a horizontally extended position. A link supports the head and main intermediate sections at their pivotal connection and an actuating link controls movement of the head section, the head section being braced in a horizontal disposition in the extended position by the superposed abutment of the support link by the actuating link. To facilitate shipping, the head section is partially foldable and pivotable independently of the linkage arrangement and the other bed sections to permit folding thereof between the main intermediate and foot sections during folding movement of the frame from its extended to its folded position.

Abstract: A disposable personal cleaning product comprises a thin substrate, preferably open celled polyurethane foam, from 1-5 mm thick having dispersed throughout its cross-section a detergent composition comprising a non-ionic alcohol ethoxylate and a fatty acid soap, preferably 90-10% by weight of the former and 10-90% by weight of the latter, the ratio of detergent composition to substrate being between 2:1 and 10:1 by weight. The substrate may be provided with slits or similar openings which may be engaged by a user's fingers to enable the product to be maintained in an open or spread condition during use.

Abstract: A drapery package comprising a core member and a drapery wrapped around it. The core member has a central portion and two end sections, the first of said two end sections containing a substantially uniformly spaced gap adjacent to said central portion, and the second of said two end sections containing a tapered spaced gap adjacent to said central portion. A longitudinally fan-folded drapery has a top end, a bottom end, and a middle section therebetween, the bottom end of said drapery being inserted into the substantially uniformly spaced gap of the first end section of the core member, the middle section of said drapery being wound in spiral fashion around the length of the core member, and the top end of the wound drapery being exposed. The wound drapery is packed in a box with its top end exposed so that drapery pins can be inserted along the top margin of the drapery even before it is removed from the box.

Abstract: An improved apparatus for cleaning roofs and other surfaces having both coarse and fine compacted particulate matter to be cleaned. A spray of water under pressure of 1,000 to 2,000 psi is applied from the inside of an open bottommed vacuum chamber toward the surface to be cleaned along a line at an angle across the chamber, to dislodge fine and/or coarse residue from the surface. A second spray is immediately applied following the first before the residue resettles on the surface, while at the same time a vacuum is applied to the chamber to remove the deflected spray and residue.

Abstract: This invention relates to a headlamp inter alia for motor vehicles.The headlamp comprises a lens (1) formed by a number of juxtaposed dioptric elements (4) each having a focal point (F) and an axis (5); a light source (6-10) is provided for each element (4) vary near the focal point thereof; the axes (5) of the various dioptric elements (4) are so arranged that the elementary light beams issuing from the elements (4) when the corresponding sources (6-10) are illuminated form a single beam having a predetermined light distribution.Of use for the construction of very shallow headlamps suitable for integration in the bodywork.