Abstract: A candle is made by first positioning a core element centrally in an upwardly open candle mold with the element spaced from an inner wall surface of the mold and from a lower wall of the mold, then extending a thin rod up through the lower wall of the mold to a position at least at a lower end of the core element in the mold, and then filling the mold around the core element and rod with molten wax. This wax is then cooled and hardened around the core element and rod to a hard body and the core is withdrawn upward out of the hard body to leave a central cavity in the body. The hard body is pushed up out of the mold and off the thin rod to leave in a lower end of the body where the rod was a passage extending to the central cavity. Finally a wick is fitted to the cavity and passage and the cavity is filled around the wick with wax. This last step can be carried out by fitting to the cavity a small-diameter hard body of wax itself molded around the wick.

Abstract: A candle has an elongated wax body formed around a wick and having a tip from which the wick projects and which is formed with a shoulder. The candle is oriented upside down with the tip from which the wick projects directed downward and heat is projected against a surface of the tip to melt wax on the surface of the tip such that the melted wax runs down and drips off the candle tip and wick projecting therefrom. Heat is projected against the tip by directing a hot-air jet against the tip. Alternately this can be done by projecting infrared radiation against the tip. To achieve the most attractive results the candle is rotated about a central longitudinal candle axis while projecting heat against its tip.

Abstract: A magnetic valve is proposed, in particular a fuel injection valve for internal combustion engines, which has a valve housing, a conductor coil mounted on a core of ferromagnetic material, and an armature which carries a valve body cooperating with a valve seat. The core has an inner cylinder and an outer cylinder, which are magnetically conductively connected with one another at one end face via a yoke. At the other end face, a circular-annular plate is magnetically conductively connected with the outer cylinder. The magnetic circuit is closed between the circular-annular plate and the inner cylinder via an armature, which has a plate-like element and a hollow cylindrical strut. The strut is located opposite the inner cylinder and with it forms a first air gap. The rim of the plate-like element of the armature is located opposite the circular-annular plate and with it forms a second air gap.

Abstract: A fuel injection apparatus in which the duration of fuel supply of at least two pump pistons of a fuel injection pump is determined by the closing duration of an electrically actuated overflow valve. The overflow conduits of at least two adjacent pump work chambers are interconnected, and the return flow of fuel from these overflow conduits to a chamber of lower pressure is controllable by the control element of the overflow valve which is common to these overflow conduits. The overflow conduits are each provided with one barrier valve, by means of which the at least one pump work chamber not under injection pressure at a given time can be blocked off from the pump work chamber which is placed under injection pressure at that time.