Abstract: An indicating instrument has a pointer (1) driven by a measuring mechanism by a pointer spindle (3). The pointer has a region (10) on the pointer hub side which in cross section has the form of an H. This H is formed by a horizontal bar (20) and two outer bars (21, 22). Ribs (23, 24) extending in zigzag form above and below the horizontal bar (20) increase the rigidity of the region (10) on the pointer hub side.

Abstract: A camera has a rear cover part, and a rotatable counter dial with a numerical scale of exposure count indicia to be successively viewed. Each of the indicia has the same color. A label on the rear cover part is superimposed to the counter dial and has the same color as the indicia to render the indicia invisible in order to prevent them from being viewed. The label includes a viewing portion that is not the sane color as the indicia and is arranged to be superimposed successively to the indicia when the counter dial is rotated. As a result, the indicia are made successively visible in order to permit them to be successively viewed. Eye-readable information is imprinted on the label, and the counter dial is transparent to permit the information to be visible through the counter dial in order to be read.

Abstract: A camera has a rear cover part, a label on the rear cover part, and a numerical scale of exposure count indicia to be successively viewed. The numerical scale of exposure count indicia is located on the label, and each of the indicia has the same color. A color-absorbing optical filter is rotatable superimposed to the indicia and is a color that absorbs the color of the indicia to render the indicia invisible in order to prevent them from being viewed through the filter when light is reflected from the indicia to the filter. The filter includes a viewing portion that is arranged to be superimposed successively to the indicia when the filter is rotated and does not absorb the color of the indicia. As a result, the indicia are successively visible through the viewing portion in order to permit them to be successively viewed. Eye-readable information on the label is a color that is transmitted through the filter to permit the information to be read when light is reflected from the information to the filter.

Abstract: A roll or spool of sheet-like or thread-like material comprises an elongated support member, and a sheet-like or thread-like material rolled or wound about the support member and adapted to be removed therefrom. The support member has on an outer surface thereof a visual message hidden from view by the sheet-like or thread-like material and adapted to be exposed to viewing upon sufficient removal of the sheet-like or thread-like material. The invention renders support members for sheet-like or thread-like material, hitherto useless after removal of the sheet-like or thread-like material, commercially attractive.

Abstract: An indicator for a gauge, such as a floor scale. The indicator includes a semi-circular dial and a two-pronged needle indicator that is free to rotate 360.degree. within the gauge with only one of the two prongs being used at a time.

Abstract: A card (20) has a recording surface (36) with three aligned horizontal rows (40,42,44) of boxes. The first row (40) is in the middle with the second row (42) above it and the third row (44) below it. An initial odometer reading of a vehicle is recorded in the first row (40). At the same time, a base fuel gauge reading is taken and is recorded by positioning a pivotable pointer (50) mounted on the card (20) above the first row (40). The vehicle is driven to consume fuel, and ten gallons of fuel are added to bring the fuel gauge reading above the base reading. When the fuel gauge again reaches the base reading, a second odometer reading is taken and recorded in the second row (42) of boxes. The reading in the first row (40) is subtracted from the reading in the second row (42), and the result is written in the third row (44) of boxes. A decimal point (46) is positioned between the two rightmost boxes of the third row (44) to automatically convert the subtraction results into miles per gallon.

Abstract: There is disclosed a novel indicator assembly comprised of a housing member mounted to a fluid handling apparatus and an indicator member mounted for rotation within the housing member operationally associated to a moving member of the fluid handling apparatus wherein the housing member is provided with transparent sectors permitting visual observation of the indicator member and wherein the indicator member is provided with colored sectors to visually cooperate with the transparent sectors of the housing member to indicate operational modes of the fluid handling apparatus.

Abstract: A readout pointer for the penny wheel of a fuel pump cost counter having a circumferentially extending mask for the penny wheel and adapted to be mounted in alternate axially spaced positions for selectively masking the short graduations on the penny wheel for selectively reading the penny wheel either to the nearest 1.cent. graduations or nearest 2.cent. graduations.

Abstract: Apparatus and method for determining vehicular distance per fuel unit, such as the miles per gallon or liter of fuel consumed in driving a car. The vehicle has a fuel gage, and when stopped on, or operating on level road, a reference mark is made where the fuel gage pointer is then located and the odometer mileage reading is recorded. Vehicle operation is continued and when convenient, fuel is then added to the fuel tank to cause the pointer to show a greater quantity of fuel in the tank than is shown by the reference mark. The vehicle is then driven until the fuel gage pointer again returns to the reference mark, and the total distance traversed is also determined. With the knowledge of the amount of fuel consumed and the total distance traversed, the distance traversed per unit of fuel can be calculated.