A system for determining and entering line measure into a justification computer for controlling the format of output copy. During an output operation when there is a necessity for determining line measure, a measure seek code is detected, escapement of the carrier initiated, the escapement of the carrier sensed, and the units of escapement counted. Upon sensing the location of the right margin stop, escapement is terminated. Thereafter the carrier is returned to the position occupied prior to t...

A device for determining position coordinates of points on a surface which includes a conducting grid structure having at least two grid elements to be placed over or under a surface and a cursor structure having a circular conducting loop element to be moved across the surface of the grid structure. An alternating electric signal is supplied to either the cursor conducting loop or to each of the conducting grid elements. This signal induces a signal in each element of the unexcited conducting s...

A batch of an oil-in-water emulsion such as milk or a milklike substance is stabilized by the addition of a viscosity increasing agent, a portion of the batch is analyzed to determine the fatty content thereof and the remainder of the stabilized batch is then utilized as a reference standard for checking and calibrating apparatus which is used to determine the fatty content of such emulsions by the light transmission characteristics thereof.

A color-producing reagent for determining blood sugar comprising o-toluidine, thiourea, an ethylene glycol mono-lower alkyl ether, phthalic acid, and dimethyl formamide as a solubilizing agent, is outstandingly sensitive even to very low blood sugar contents, as in hypoglycaemia, and exhibits prolonged color stability.

A fixed member and a movable member are provided together with means for providing a cyclic wave pattern upon moving the movable member relative to the fixed member. The direction and precise extent of movement are determined by observing the pattern and the extent is indicated as a digital readout. Comparatively inexpensive components are used to determine and indicate the major portion of the digital readout. Logic means is employed for determining at least one digit, such as the least signifi...

Method for determining the sulfate ion concentration of an aqueous solution. The mechanism of the method resides in the use of a chelate of a metal which under acidic conditions dissociates to release metal ions which will react with the sulfate ion present to produce a colloidal metal sulfate precipitate. In order to ensure that the free chelant does not precipitate or react to form a precipitate, there is also added to the solution a quantity of a metal compound, the metal of which will replac...

The drift of a directional gyro with a stationary gyro carrier is determined by making a plurality N of measurements of the alignment angle .alpha. of the gimbal bearing the gyro rotor with respect to a reference axis determined by the position of the gyro carrier at equal time intervals within a predetermined period of time, producing electrical value signals, preferably pulse sequences, proportional to the measured angular values, and adding the electrical signals to provide a sum which is a m...

A system for determining the position of a helicopter with respect to a remote transmitting antenna using at least one receiving antenna mounted on a blade of the helicopter to superimpose a doppler shift on a signal received from the remote transmitting antenna. Preferably, the helicopter also has a fixed antenna to provide a reference frequency. The system detects the blade rotational intervals between maximum positive, maximum negative and zero doppler shift to determine the range and bearing...

Method and apparatus for determining the component impurities of helium. A sample of helium flowing in an analyzer system, including conduits having as a fixed part thereof a trap and coil assembly, is maintained at above atmospheric pressure and a rate of flow which allows its passage freely through the assembly being maintained at the temperature of liquid helium. Impurities are solidified and thereafter isolated by evacuation of the gaseous content of the assembly. The subsequent warming of t...

Apparatus for determining the viscosity of a liquid which includes a pivoted paddle or like member arranged to be immersed in the liquid and driven by means of an electromagnetic force acting upon the member, means for reversing the direction of the electromagnetic force each time the member reaches a predetermined point in each direction of its travel and thereby causing the member to be driven back and forth in the liquid, and means for introducing a further liquid into the said liquid in such...