Abstract: A scale adapted for performing recipes in which the ingredients are given in customary volumetric measures such as cups, tablespoons and teaspoons. The user enters the name or code number of an ingredient which is displayed by the scale. The amount of the ingredient is displayed in volumetric terms or in terms of weight if desired. A processor in the scale accesses the volume-to-weight (V/W) ratio or weight-to-volume (W/V) ratio of the ingredient from nonvolatile memory and calculates the weight of the ingredient and stores it temporarily. The ingredient is added gradually to a mixing bowl on the scale after the tare weight of the bowl is cancelled. The processor continuously compares the stored weight with the increasing weight of the ingredient and notifies the user by means of the display when a comparison is read and, hence, when the desired volumetric amount of the ingredient has been entered. Other operating modes can also be selected.

Abstract: A trimming potentiometer (10) has a circuit track pattern (12) disposed on a base (11) having three integrally formed legs (11d). The track pattern (12) includes a collector track (12a), a resistance track (12b) and a pair of termination tracks (12c) connected to opposite ends of the resistance track (12b). Terminals for the device are formed by extending the collector track (12a)and the pair of termination tracks (12c) down the middle leg (11d) and the opposite outside legs (11d), respectively. A multi-functional contact (13) is rotatably mounted on the base (11) and includes multiple fingers (13g) that contact the resistance tracks (12b), dimpled areas (13j, 13k) which form projecting surfaces that contact the collector track (12a), a stop tab (13l) at its upper extremity that limits rotation, and outwardly extending notched tabs (13m) for receiving a suitable drive member to adjust the setting of the potentiometer (10).