Abstract: A spring steel having a good sag-resistance and a good hardenability comprises by weight 0.5-0.8% carbon, 1.5-2.5% silicon, 1.6-2.5% manganese and a member or members selected from a group consisting of 0.05-0.5% vanadium, 0.05-0.5 niobium and 0.05-0.5% molybdenum, the remainder being iron together with impurities. The steel may further contain a member or members selected from a group consisting 0.0005-0.01% boron, 0.2-1.0% chromium, 0.2-2.0% nickel and not greater than 0.3% rare-earth elements and/or a member or members selected from a group consisting of 0.03-0.1% aluminum, 0.02-0.1% titanium and 0.02-0.1% zirconium.

Abstract: A steel for use in a vehicle suspension spring having a good sag-resistance comprising by weight 0.80% carbon, 1.50-2.50% silicon, 0.50-1.50% manganese, a member or members selected from a group consisting of 0.05-0.50% vanadium, 0.05-0.50% niobium and 0.05-0.50% molybdenum, the remainder being iron together with impurities. The steel may further contain a member or members selected from a group consisting of 0.0001-0.01% 0.20-1.00% chromium, and not greater than 0.0008% nitrogen.

Abstract: A spring steel having a good sag-resistance and a good hardenability comprises by weight 0.5-0.8% carbon, 1.5-2.5% silicon, 1.6-2.5% manganese and a member or members selected from a group consisting of 0.05-0.5% vanadium, 0.05-0.5 niobium and 0.05-0.5% mobybdenum, the remainder being iron together with impurities. The steel may further contain a member or members selected from a group consisting 0.0005-0.01% boron, 0.2-1.0% chromium, 0.2-2.0% nickel and not greater than 0.3% rare-earth elements and/or a member or members selected from a group consisting of 0.03-0.1% aluminum, 0.02-0.1% titanium and 0.02-0.1% zirconium.

Abstract: A flexible coaxial pushpull cable comprising an outer cable member, and an inner cable member disposed inside the outer member so as to be slidable lengthwise therein, the inner cable member having a projecting end portion which extends lengthwise beyond the free end of the outer cable member, the inner cable member including a flexible working core and a length of wire tightly wrapped around the core in a helical configuration and with a given lengthwise pitch, whereby the inner cable member has an apparent diameter which is substantially equal to the sum of the diameter of the core and twice the diameter of the wire, the wire defining a helical groove, at least the projecting end portion of the inner cable member including a reinforcing member formed by a flexible polymeric material which fills the helical groove.

Abstract: A steel for use in a vehicle suspension spring having a good sag-resistance comprising by weight 0.50-0.80% carbon, 1.50-2.50% silicon, 0.50-1.50% manganese, a member or members selected from a group consisting of 0.05-0.50% vanadium, 0.05-0.50% niobium and 0.05-0.50% molybdenum, the remainder being iron together with impurities. The steel may further contain a member or members selected from a group consisting of 0.0001-0.01% boron and 0.20-1.00% chromium, and not greater than 0.0008% nitrogen.

Abstract: A heat resistant cushion in the form of a compact of a toroidal structure which is formed by an annular network structure of knitted metal wires, the network structure including a first segment which forms an outer surface of the toroidal structure and a second, inner segment, the second segment containing yarns of an inorganic fiber which are disposed at a given axial separation and extending circumferentially of the network structure and which are support by engagement with selected loops of the metal wires which forms the second segment, the network structure being rolled upon itself beginning with the free end of the second segment.

Abstract: A catalytic converter is mounted within an exhaust gas passage formed by a pair of tubular members each having an outwardly extending flange at their one end and connected together in tandem and in a concentric manner by means of mounting means which cooperate with the flanges. The catalytic converter includes a cylindrical, metallic shell having a pair of flanges at its opposite ends which extend radially inward and which define a gas inlet and a gas outlet, a catalyst carrier formed by a monolithic, porous ceramic body having a coating of catalyst, and elastic support means for supporting the catalyst carrier within the shell. The shell is provided with an annular rib having a pair of side surfaces which project outwardly from its cylindrical surface, the annular rib defining a pair of cylindrical portions of the shell which are contiguous with the respective side surfaces.

Abstract: A catalytic converter of cassette type having a monolithic honeycomb structure of catalyst-coated ceramic body which is resiliently supported within an outer cylindrical metal shell. The shell includes first and second circumferential portions of an equal diameter which are at opposite axial ends thereof, and a third circumferential portion located therebetween and which has a greater outer diameter than the first and second portions. Thus bevelled areas are defined between the first and the third and between the second and the third circumferential portions. The converter is rigidly mounted in a gas passage defined by a pair of tubular members which are connected in tandem with an internal combustion engine. One of the tubular members has an inwardly extending annular rib at a given distance from the end thereof.