A tachograph for recording information during a number of identical, successive time intervals on a stack of disks rotatable in unison past a stylus. Rotation of the stack past the stylus is accomplished within one of the time intervals. Each disk has a window which exposes the next lower disk of the stack. After the uppermost disk has rotated through one full time interval it is separated from the hub and held stationary, and the remaining lower disks continue to rotate, and the stylus then bea...

The disclosure relates to a process and apparatus for recording information on a dielectric thermoplastic material in the form of a ripple pattern. A layer of dielectric photoconductive material may be used to form an electrostatic latent image, which is transferred to the thermoplastic material to control the deformation of the thermoplastic material in image configuration.

A sphygmomanometer of the aneroid gauge type having bellows connected through gears to rotate a shaft, and a pointer mounted on the shaft and movable over a dial to indicate pressure, includes recording means manually actuable to temporarily mark the systolic and diastolic pressures. The recording means has a two layer adhesion marking means attached to the dial and a stylus carried by the shaft in registry with the pointer, and movable to impress a mark upon the adhesion marking means. A separa...

A desired TV image displayed on a cathode-ray tube is transferred onto a recording paper which is placed in close contact with the faceplate of the tube, and the transferred image is then developed by a developing device. While the preceding exposed recording paper is being developed, the succeeding exposed recording paper is stored so that the problem that the developing time is slower than the exposure or image transfer time is overcome. Therefore, desired TV images may be recorded in a very s...

A recording sphygmomanometer adapted to print systolic and diastolic pressure indicia to form a permanent record on a heat sensitive sheet. Microphone impulses from a pressure cuff are amplified to produce current in a heating element mounted on the pointer of a manometer. The record sheet may have a printed scale adjacent the heating element and accurately positioned in relation thereto.

A device for periodic recording of traffic flow on roads or of liquid level of a river by printing on paper tape the positions of a set of counter print wheels of a mechanical counter that is driven in response to vehicular traffic or to a change in liquid level. As a traffic counter the device provides automatic periodic resetting of the wheels to zero. A novel, disposable printing ribbon cartridge permits construction of the device with rigid support, by spaced vertical plates secured to each ...

A well bore inclinometer comprises an instrument mounted in a flow tube forming a part of a drill string. The instrument includes a record tape cartridge that is reciprocated each time the pump pressure is shut off and restored. Each upward motion causes the tape to be perforated by a punch on the lower end of a pendulum and to be perforated by a plurality of punches located at the upper end of the cartridge. The position of the hole made by the punch carried by the pendulum relative to the fiel...

A recording device comprising in series a first electrode, a layer containing a dispersed mixture of at least a semiconductor and an electrical insulator having one side contacting said electrode, a solid layer of an electrical insulator contacting the other side of the first mentioned layer, and a second electrode disposed on the other side of the solid insulator layer in electrical contact therewith. The second electrode may be either in direct abutting contact with the solid insulator layer o...

A high speed recording apparatus capable of recording signal intelligence from a cathode ray tube. Drive means are provided comprising a plurality of rollers to press discrete areas of a record web against the fiber optic face plate of the cathode ray tube in synchronism with beam sweep. This action eliminates page incrementing lapse time while at the same time data is continuously recorded on the record web. The recorded data, at a processing station, may be transferred from the record web and ...

An alphanumeric recording system wherein a character disc having transparent character images thereon is rotated through an exposure zone so that selected characters may be projected by the energization of a flash lamp. The projected image is collimated and directed to a recording zone through which move lens-mirror units at a constant speed intercept the projected image and focus it onto a photoreceptive recording medium. The character disc rotates at a rate such that with the slits therein ass...