1295807 Coating; coating apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 May 1971 [15 May 1970] 14471/71 Headings B2E and B2L As shown in Fig. 2 a cylindrical body 3 of an electrical, component 1 having two parallel connecting wires extending radially from the cylindrical body is coated with a layer of lacquer by suspending the electrical component from its connecting wires with the longitudinal axis of the body of the component disposed parallel to the surface of the lacquer in a bath, partly immersing the body of the component in the lacquer 13 present in the bath, e.g. to the level 17 and causing relative movement between the lacquer and the body of the component so that lacquer flows over the exposed part of the surface of the body while the major proportions of the connecting wires are not coated with lacquer, and removing the component from the lacquer. A baffle 21, the plane of which is parallel to the longitudinal axis of the component I may be arranged in the bath, and after the component I has been introduced into the lacquer the component is moved towards the baffle along a horizontal path in the direction indicated by arrow 25 causing a wave 23 of lacquer to be formed. Preferably the component is moved to and fro along a horizontal path between two parallel baffles arranged in the lacquer. Instead of moving the component in a stationary bath, it is possible to move the bath with respect to the component. Alternatively, the baffle may be moved in a stationary bath with respect to the component which is also stationary. Further, the component may be kept stationary between two baffles which are both moveable towards the component. The lacquer may be a phenol resin lacquer in which calcite is dispersed.
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