Abstract: A toothed power transmission belt comprising a body, transversely extending teeth positioned along at least one face of said body, and an inextensible tensile member embedded in said body, the material of said body comprising a blend of an epihalohydrin having a nominal Mooney viscosity of not more than 50 and an epihalohydrin having a nominal Mooney viscosity of not less than 50.

Abstract: A latch for a clothes drier of the type having a sliding bush with arms pivoted thereto and radiating outwardly therefrom, the latch having a latching tongue with a ramp face which slides over the striker plate as the bush is elevated on a standard and a shoulder which latches the striker plate so as to effect an interlock between the bush and the standard, but when the tongue is depressed away from the striker plate and radially inwardly towards the standard it releases the interlock.

Abstract: A method, a product and an apparatus for cleaning the epidermis, wherein a magnetic or magnetizable substance applied onto the epidermis is caused to penetrate into the pores of the skin, and is then extracted with the pollutants from the excretory ducts of the pores by being subjected to the influence of a magnet applied onto the epidermis.The magnetic or magnetizable substance penetrates the pores of the skin by massaging the substance to insert it between the dead cells of the skin and the waste products excreted by the skin.

Abstract: A cam mechanism for a circular knitting machine includes stitch cams each of which is provided with main cam wall sections adapted to control the position of each descending needle after its operating butt has come into contact on its upper side with the one of the main cam wall sections. The stitch cam is also formed with auxiliary cam wall sections of substantially the same contours as the main ones for guiding the needle on the underside of either the same or another operating butt to permit smooth movement of the needle while the operating butt is being controlled by the main cam wall sections. The two cam wall sections cooperate to guide the needles without irregular motion of their butts or needle points.

Abstract: A method of producing a metal bar having one edge serrated wherein a billet work-piece of metal is heated and passed through stands of a hot rolling mill so as to elongate the billet into a bar and form the bar to a generally rectangular shape, supporting the side faces of the bar in a notching stand near the output end of the mill, supporting one edge of the work-piece in the notching stand by one roll of that stand, forming serrations in the other edge of the bar in the working zone by engaging that other edge with outstanding teeth of the second roll, and subsequently passing the work-piece through a further stand to flatten the work-piece side faces and size the work-piece.

Abstract: A tent support pole having adjacent one end a plurality of hooks spaced circumferentially around the pole on a fixed collar. A sleeve is slidable on the pole between the hook collar and a fixed stop collar spaced below the hook collar. The sleeve has a like plurality of slots to engage the free end of a tent support strut. The other end of the strut is pivotably connected to a tent support arm and intermediate the ends of the arm. One end of the arm has a bar to engage the hook and the other end a guy securing rope. In use, the bar on the arm is placed on the hook and the free end of the strut is engaged in the sleeve slot. The tent pole is then erected with the top of the pole (i.e., the end adjacent the hooks) projecting through a ring secured to the canvas. The guy ropes are secured to the arm. The sleeve is then moved downwardly toward the stop collar, causing the radially outer end of the arms to be raised and the guy ropes to be fully tensioned to support the canvas.

Abstract: A method and a device for pneumatically braking and re-starting in the reverse direction a Diesel engine, comprising stopping the fuel supply to the engine, locking starting valves of the engine in an open position during the braking period, and then opening a main starting valve and the exhaust ports of the starting valves when the engine has slowed down to a rotary speed of a predetermined value.

Abstract: An electric power generating device recovering the energy of the exhaust gases of an internal combustion engine, comprising a speed-reducer mounted between the engine and a transmission shaft and a turbo-alternator set driven by the energy taken from said exhaust gases and the turbine of which is operatively connected to said reducer through a reversible transmission system with variable speed keyed in follow-up relationship to the speed variations of said transmission shaft.

Abstract: A pressure compensated emitter device for controlling rate of water discharge in a drip irrigation emitter tube, wherein the tube is of resilient material and is partly contained within a plenum, wherein an increase pressure results in a reduction of tube diameter. The tube may contain a core of copper or other metal which will inhibit root growth in the vicinity of the discharge orifice.

Abstract: A clutch of the slipping belt type wherein the belt is lifted away from engagement with the driving pulley so as to avoid localized wear on the belt which would otherwise take place.

Abstract: An antiskid device for air brakes comprising a modulator mounted in a pressurized air line connecting a brake valve to brake actuators, and a signal producing means adapted to produce a throttling electric signal and a pressure reducing electric signal whereby the speed of the wheels can be controlled and the slip rate of the wheels can be maintained at an approximate optimum level of 0.2.

Abstract: Method and device for removing the crank-shaft of an internal combustion engine, wherein the frame of the engine is tilted on one side about an axis parallel with the center-line of the crank-shaft, and said crank-shaft is extracted from below.

Abstract: A catalyst active and selective in the oxidation of methanol to formaldehyde is prepared by mixing an aqueous molybdate solution with an aqueous solution of a ferric salt, while maintaining a Mo/Fe atomic ratio of from 1.6:1 to 2.2:1 in the mixture, heating the resulting suspension at 70.degree.-100.degree. C for at least 30 minutes, washing the resulting precipitate with water, drying said precipitate to reduce its water content to 2-8% by weight, reducing the dried precipitate to granules and drying the latter to completely remove water, impregnating the dried granules with an aqueous solution of a decomposable bismuth salt and drying and calcining the impregnated granules. The catalyst consists of granules of crystalline iron molybdate and molybdenum trioxide having on their surface an interaction product thereof with bismuth oxide, said molybdenum trioxide and said bismuth being present in an amount of 5-35 wt.% and 0.5-10 wt.%, respectively, with respect to the crystalline iron molybdate.

Abstract: The invention relates to a device for lubricating the guiding system of an internal combustion engine valve having at least one valve stem mounted in a guide. A first upper cavity communicates permanently with a second lower annular cavity through a conduit. The first cavity is selectively interconnected to a lubricant intake duct through a sliding valve comprising an annular groove on the valve stem. A third cavity between the intake duct and the slide valve provides lubrication of the upper portion of the valve guide.

Abstract: A feed rate control system for a numerical control system comprising a circuit to produce a unit movement quantity .DELTA.S and a unit feed rate .DELTA.F, a circuit to accumulate the unit feed rate .DELTA.F at each pulse of the pulse generator and to store them, a ratio calculator to obtain the ratio M of the output numerical value .SIGMA..DELTA.F to said unit movement quantity .DELTA.S, multipliers MUL.sub.1, MUL.sub.2, and MUL.sub.3 to multiply said unit movement quantity .DELTA.S, a Z-axis increment .DELTA.Z of said unit movement quantity .DELTA.S and a X-axis increment .DELTA.X, respectively, by said ratio calculator output M, and a circuit to compare the output numerical value .SIGMA..DELTA.F of the storage circuit with the unit movement quantity .DELTA.S and to produce an accumulating signal t whenever said .SIGMA..DELTA.F is larger than said .DELTA.S, said accumulating signal controlling t the feed rate of the machine tool, which is provided with a high feed rate circuit.

Abstract: Heat exchange apparatus for raising the temperature of a subject fluid in which a fuel burner is located at least partially within a heat-exchange liquid and the subject fluid is passed through heat-exchange liquid, the combustion products of the fuel burner being contacted with the heat exchange fluid in the vicinity of the subject fluid. In this way the fuel burner may be constructed entirely of metal so that large units of low weight may be used. Preferably the fuel burner includes a tangential air inlet and a combustion chamber of frusto-conical form.

Abstract: A rotary machine useful as a rotary compressor or engine having a cylindrical compressor rotor with a lobe outstanding from its cylindrical rolling surface geared to another cylindrical rotor with a recess, in its cylindrical rolling surface, the rotors being rotatable within respective parallel intersecting cylinders of a stator so that the lobe sweeps its stator cylinder and meshes with the recess as it moves past the other rotor.The lobe and recess are of such complementary shape that the lobe more than half fills the recess while still contiguous with its cylinder and the leading face of the lobe is contiguous with the leading surface of the recess after separation of the rolling surface so that the gases entrapped in the recess are of minimum quantity, and are released from the recess back into the cylinder but behind the trailing surface of the lobe.

Abstract: A building containing two rows of squash courts one each side of a central gallery, there being clerestory windows above the gallery, glass walls on each side of the gallery, and divisional walls extending between the gallery glass walls and the side walls so as to form the rows of squash courts each of which receives light through the clerestory windows and glass walls.

Abstract: An absorption refrigeration system utilising a pair of refrigerant fluids one of which constitutes a distillate, the other of which constitutes an absorber, the fluids being separated from one another in a closed circuit, by a distillation process, the more volatile vapor phase (namely the distillate) being condensed to form a liquid phase, expanded, evaporated, and re-absorbed in the less volatile product (namely the absorbent) of the distillation process, each of the refrigerant fluids being a fluoro-carbon compound, the differences of respective boiling points of said pair of fluids being substantially smaller than the corresponding boiling point temperature difference pertaining to the ammonia/water absorption system, the system being characterized in that it is able to operate with a higher temperature cooling medium for the distillation column condenser while utilizing a lower grade of heat in the distillation column re-boiler.

Abstract: A take-up spool latch for a seat belt retractor of the type comprising a spool journalled for rotation in a spool frame and incorporating a torsion spring for retracting a seat belt, the latch having a clutch member and a brake member with means between them limiting relative movement, both the clutch and brake members having cam surfaces thereon which are engaged by a pawl which co-operates with a ratchet on the spool and is so arranged that:A. upon retraction of a seat belt which has been withdrawn from the spool the cam surfaces retain the pawl out of engagement from the ratchet teeth,B. upon initial further withdrawal and during the limited rotation between the brake and clutch member the pawl is released by the cam surfaces and engage the ratchet teeth thereby preventing retraction,C. upon still further withdrawal the cam surfaces again engage the pawl and retain it out of engagement from the ratchet teeth, so that full retraction can again take place.