Characters presented by a rotary head of a data recording machine (e.g. an embossing machine) are sequentially located at an index position accordingly as related selectors are moved to a set or actuated position to arrest motion of an indexing clutch which itself, when arrested, is effective to stop the rotary head at index position.

A recording sheet comprising a support having coated thereon a layer of a color developer which is capable of forming a distinct color when contacted with a color former. The color developer contains a combination of (i) a polymer of an aromatic carboxylic acid having at least one hydroxyl group with an aldehyde or acetylene and (ii) a metallic compound.

The recorder comprises a hydraulic pressure recorder section and a mechanical movement detector section which enable the recorder simultaneously to monitor the hydraulic pressure in mine roof support system and the roof convergence. The hydraulic pressure recorder section comprises a coiled, hollow Bourdon tube gauge interconnected to an arm which carries a chart marking pen. The mechanical movement detector section comprises a spring loaded drum assembly which is rotated by a Bowden cable secur...

A recording material is described, which comprises a support of paper or of synthetic polymer and an electroconductive layer on at least one side of the support. The surface resistance of this electroconductive layer is not more than 10.sup.11 ohms per sq. at a relative humidity of 15 percent. The layer consists or includes a major proportion of a water-soluble polymer resulting from the amino alkylation of polyethyleneimine with an epoxy compound bearing a quaternary ammonium end group. The ele...

An automatic automobile rental system having a plurality of remote rental stations and a central data processing station for system control and customer billing is described. A system user employs a credit card that is automatically read at a rental station to identify the user, and this information is checked at the central station to verify that the card holder is entitled to receive an automobile. The same card identifies the holder when the automobile is returned to the same or a different r...

In a recording instrument of the type comprising driving means, a continuous web of recording paper which is folded in many folds before and after recording, means driven by the driving means for continuously feeding the recording paper in an unfolded condition, and means for recording a measured quantity on the recording paper while it is unfolded, there is provided means for directing the folds of the recording paper alternately in opposite direction after recording to forcibly fold the record...

The start of each cycle of a pump, which supplies a pressurized ink stream through a nozzle for application to a recording surface on a rotary drum, is synchronized with each revolution of the drum. If more than one cycle of the pump occurs during each revolution of the drum, the number of the cycles in each drum revolution must be an integer with each cycle starting an equal angle of the revolution of the drum from the start of the prior cycle.

The invention relates to a recording electrode capable of forming a color image by directly controlling charged toner particles. The recording electrode comprises a plurality of apertures for each color in one substrate. The apertures can be accurately positioned so that a good image is output. The toner particles for each color perfectly overlap each other on a paper because of the accurate aperture positioning. Moreover, since driving circuits for each color are commonly used, it is possible t...

In an apparatus for recording lines on a movable record carrier, a biased recording pin, whose point is urged into contact with the record carrier, is mounted in two knife edge bearings for longitudinal and angular movement. One bearing is stationary, and the other mounted on manually operated setting lever which can be operated to place the recording pin in different angular recording positions for recording lines on parallel tracks of the record carrier. The recording pin can be oscillated wit...

The recording apparatus includes a recording head that performs dot-recording on the recording material through a plurality of recording elements arranged on the recording head; a mechanism to move the recording head in a main scan direction to perform recording; and a transport mechanism to feed the recording material in a sub-scan direction perpendicular to the main scan direction after each main scan operation. The transport mechanism is formed of a combination of driving elements including a...