Abstract: A rotating electric machine stator, the casing of which is formed by the assembly of two elements made from a plastics material of from another non magnetizable material;it comprises a holding part made integrally from a magnetizable material for forming a closed circuit for the magnetic field flux generated by the inductive means said piece being mounted on the outer surface of the casing in order to maintain the two elements applied one against the other.

Abstract: In recording a line image on a heat mode recording medium, the intensity of the light spot is regulated in proportion to the square root of its velocity to obtain a line image of constant width.

Abstract: The present invention relates to new offset plates wherein the surface of the steel-containing support is coated with a thin water-accepting layer of chromium and chromium oxide.

Abstract: An improved method of manufacturing fusible net products and the products resulting therefrom are disclosed. Low-melt-strength polymers are extruded with a stable high-melt-strength polymer to form a composite net structure having a carrier net layer of the stable high-melt-strength polymer carrying a net layer of similar structure and of the low-melt-strength polymer. After the molten layers are quenched and solidified the net layer on the carrier is easily delaminated. The net layer can be removed anytime after the material ceases to be tacky and may be conveniently stored as a composite if desired. The carrier polymer net is available for sale directly as is or it may be oriented or ground and recycled to again form the carrier. The low-melt-strength polymer may be sandwiched between outer layers of high-melt-strength polymer or the low-melt-strength polymer may be carried on both sides of the high-melt-strength polymer.

Abstract: A method for the repair of alloy-tipped saw blades is disclosed. According to the method, a damaged circular saw blade can be completely repaired at one location. The saw blade is clamped in the machine. Brazing and grinding tools are positioned for repair of the clamped saw blades.

Abstract: For taking up less space when not in use, a ski is designed with a folded joint between its ends. For locking the front and back parts of the ski in the in-line condition ready for use, it is possible to have a top part acting as a splint which is bolted, for example, to the inner ends of the two ski parts, possibly between two heel-pieces on top of the ski parts. As a further possible design, the system for locking the ski parts in the in-line position, two links with a toggle function may be used or the top face of the two ski parts may have a female guide into which the top part is slipped. As a further possible locking system, the two ends of the ski parts nearest each other are designed with a hollow into which a locking core-piece with side headers acting as teeth is placed and which is kept in position by a metal cover plate on top of it.

Abstract: A remarkably superior plastic netting for use in palletized loads is disclosed. The plastic netting is composed of linear low density polyethylene. The netting is molecularly oriented by a minimum factor of 4 in the longitudinal direction. The resulting netting is highly desirable for use in the wrapping of palletized loads since it is relatively inexpensive, lightweight, strong, and has a low degree of permanent stretch coupled with a relatively high degree of elastic stretch.

Abstract: A heating cock for a motor vehicle, comprising a cylindrical shell rotatably mounted about its axis in half-casings carrying fluid supply pipes and fluid return pipes, said cock allowing in its closed condition, connecting directly a supply pipe to a return pipe, the path of travel of the fluid in the shell being thermally insulated from the other pipes.

Abstract: The present invention is directed to processes and apparatus for carrying out said processes wherein molten cast iron is treated with a predominantly iron alloy having the essential elements by weight of from about 0.1 to about 10.0% silicon and about 0.5 to about 4.0% magnesium. The alloy may comprise from about 0.1 to about 10.0% silicon, about 0.5 to about 4.0% magnesium, up to about 2.0% of one or more rare earth elements such as cerium about 0.5 to about 6.5% carbon, the balance being iron. Small amounts of calcium, barium or strontium and trace elements customarily found in conventional raw material may be present in the alloy. The characteristics of the alloy make it possible to establish a ready supply of treated molten iron in the foundry in holding vessels with a selected chemical composition at a given temperature. It also makes possible semi-continuous and continuous casting of ductile and compacted graphite cast irons.

Abstract: A low density, porous compact of prepared mix containing silica fume, finely-divided carbonaceous reducing agent such as petroleum coke or coal, optionally iron and a binder.

Abstract: An expansion tank and water box device for a heat exchanger with a nest of parallel tubes, such as a radiator of a motor vehicle, in which the water box housed inside the expansion tank is maintained by the assembly of the tank with the hollowed plate through which extend the ends of the tubes. Ribs are interposed between the water box and the expansion tank. Said ribs depend, for instance, from the expansion tank.

Abstract: A pump or blower device particularly for heating and air conditioning systems is provided with a plurality of inlet ports and a plurality of outlet ports. Axially displaceable impeller means are moved to connect any one inlet port selectively with a first outlet port or with a second different outlet port or with a plurality of outlet ports simultaneously. The device is of great advantage in controlling the circulation of heating or cooling fluids between a primary circuit and secondary circuits that branch out to provided heating or cooling in selected separate areas of a building or to a plurality of buildings serviced by the primary circuit. The present device decreases the number of pumps and mixing valves in the systems and results in decreasing installation and operating costs.

Abstract: The invention relates to an improvement in a multiple bolt locking device. In accordance with the invention, the entire locking assembly is contained inside a housing comprising a box section which extends over the entire length of the door. The locking mechanism is totally adjustable both in vertical dimension and in the positioning of horizontal bars providing extra security.

Abstract: A machine for chemically frosting articles made of glass, more particularly flasks, of the type comprising a continuous conveyor-chain passing consecutive treatment stations, from frosting to drying, and furthermore comprising holders in the form of sealing stoppers for the flasks; the conveyor-chain is made of a material resistant to the reactants used, is equipped with hooking means co-operating with holders for the articles to be frosted, and is in the form of links hinged in pairs about an axis; the axis is extended outwardly on at least one side of the chain to act as a hooking means for the holders of the articles.

Abstract: An improvement in molding devices is disclosed which has particular application in the formation of round rubber objects. The cavity cups in one mold plate are made of greater than hemispherical dimension whereby all of the balls will remain in one of the plates when the plates are separated. A flash removal system is also disclosed.

Abstract: The invention relates to a video cassette comprising two spools with single disk, the respective hubs of which spools are rotatably mounted with the minimum distance possible between their axes of rotation, inside a casing in two parts, so that the said disks partly overlap in projection and are contiguous respectively to the bases of the said casing parts, each base being provided, opposite the disk which it does not touch, with at least one zone projecting in extra thickness from the base in question so that its fixed guiding surface for the magnetic tape extends in the same plane as the internal annular face of the adjacent rotary disk, the said surface being anti-abrasive and entirely slippery, cassette wherein each of said zones is constituted by an independent part molded in self-lubricating and anti-abrasive plastic material, the said part being added on to the corresponding base of the casing and being fixed thereon by non-deformable securing means.

Abstract: The invention relates to a method for drawing a wrinkle-free thin-walled cup from a sheet blank, using a die formed as a draw ring, a holddown that holds the blank material against the draw ring, and a drawing punch, which pushes the blank into the opening of the draw ring, wherein the blank material that flows from the slot between the draw ring and the holddown is formed by drawing in an initial zone of deformation which surrounds the punch, and flows into the opening of the draw ring over the latter's inner edge which is adjacent to the area of the holddown.According to the invention, in order to draw a conical cup of sheet metal, preferably of sheet steel, having a peripheral wall which forms with respect to the center axis of the cup an angle sheet is smaller than 60.degree. and preferably an angle of 3.degree.

Abstract: A cement slurry of low specific density for cementation of oil-and gas wells is produced by mixing oil-well cement with finely divided emission products comprising amorphous silica dust which has been obtained during the electrothermal preparation of ferrosilicon and/or silicon metal, water, and any desirable dispersion components, the emission products being added in an amount in the range of 1-50% of the total weight of dry material. The emission products can either be mixed with the cement while both components are in the dry state whereupon there is added a sufficient quantity of water in order to obtain a desired specific weight of the slurry or first mixed with water and any other desired dispersion components and this slurry is mixed with the oil-well cement.

Abstract: The invention relates to a lock mechanism for doors, preferably for use with dwellings, apartments or offices, the locking mechanism providing in particular a measure of safety against unauthorized opening of the lock. The lock mechanism is of a type which at will may be alternatively actuated from the inside either by a key or a thumb turn. When the resident of the house leaves he may in a simple manner suspend the function of the thumb turn. The lock is on its inside equipped both with a key hole hand and a thumb turn. The thumb turn may be engaged or disengaged with a dead bolt by means of a screw means. The screw means is actuated from the front of the lock, actuating an arm which actuates a transmission element bringing the transmission means of the thumb turn into, respectively out of engagement with the transmission means on the follower so that the lock at the operators will either will be actuated by a key or a thumb turn.

Abstract: A gas collection apparatus for use in electrical smelting furnaces, especially those for the production of aluminum is disclosed. The apparatus comprises a substantially annular body positioned beyond the outer circumference of the furnace at its lower edge and tapering towards the anode carrier at its upper edge. A space at the bottom is left between the wall of the gas collection apparatus and the furnace to permit introduction of air resulting in a chimney effect in the gas collecting apparatus of the present invention.