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"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review ; March edition, 1825
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| Number | Title | Issue Date |
| 6950003 | Device useful for signal transfer from static surface to rotating surface and viceversa A device useful for transferring signals from static surface to a rotating surface, said device comprising a pair of pot cores acting as a primary and secondary core and said primary pot core being wound with ‘N1’ number of turns and said secondary pot core bein... | 09/27/2005 |
| 5764431 | Media velocity detection for a capstanless tape transport An apparatus and method are disclosed for detecting the velocity of a tape in a tape transport system having a write head and a read head separated by a known distance and formatting the tape using marks. The tape transport system generates a write signal... | 06/09/1998 |
| 5502377 | Method and apparatus for measuring rotary movement of a shaft The invention relates to a method and apparatus for measuring the rotary movement of a shaft, wherein according to said method a magnetic pattern radially applied to a magnetic disk is inductively scanned so that in a magnetic head voltage pulses are gene... | 03/26/1996 |
| 5434800 | Programmable system for the synchronization of an electronic angular position indicator A programmable system synchronizes the operation of an electronic angular position indicator with the angular displacement of a rotor. The system can synchronize operation with rotors with non-uniform mark spacing. A sensor provides the system with electr... | 07/18/1995 |
| 4968934 | Magnetic marking apparatus for magnetically measuring displacement of a moveable element in a well Method and apparatus for the measurement of the displacement, and if desired, the force on movable equipment in the production pipe of a pumped well, for example, a pump rod or sucker rod near the pump at the bottom of a well. The force on the rod is meas... | 11/06/1990 |
| 4931727 | Moving body speed detecting device which produces and detects a magnetic pole on the body surface According to this invention, a device for detecting the speed of transference of a moving body, having a construction such that the device comprises a magnetizing element for forming a magnetic pole on a surface of a moving body made of a magnetic materia... | 06/05/1990 |
| 4803646 | Electronic odometer A system for measuring distance traveled by a vehicle periodically updates the accumulated measurements, displays the updated measurements and electronically stores corresponding accumulations of updated distance data in a non-volatile memory device. The ... | 02/07/1989 |
| 4560928 | Velocity or distance measuring apparatus using magnetic dipoles A non-contact system suitable for measuring velocity/distance of an object travelling inside a ferromagnetic pipeline utilizes magnetic dipoles written into the pipe surface by a transmission coil. These dipoles can be detected by a magnetic detector situ... | 12/24/1985 |
| 4262251 | Device for measuring rotational angle of rotary member A rotatable disk having a plurality of calibration segments and at least one marker along the peripheral portion thereof is provided while a stationary pick-up provided adjacent the disk for generating a first signal indicative of calibration segments and... | 04/14/1981 |
| 4220084 | Document endorser apparatus As documents are moved serially past a servo motor-driven endorser, it endorses a stamp upon each. A transport signal dependent on document speed, and an endorser signal generated by an optical tachometer mounted to the servo motor, provide input to a fre... | 09/02/1980 |
| 4170790 | Tape recorder device with tape running speed display Rotational speed of a flywheel directly coupled with a capstan is detected by a speed detector. The rotational speed data and the reference speed data are supplied to a comparator/arithmetic circuit whereby actual tape running speed relative to the refere... | 10/09/1979 |
| 4086563 | Wheel slippage monitor In plowing or towing of other vehicles or implements with a tractor it generally is desirable to move as fast as is economically feasible. Attempting too high a speed may be self-defeating through wheel slippage of the pulling tractor which may reduce eff... | 04/25/1978 |
| 3988215 | Method for recording potential capacity of a formed foil in a continuous foil forming process In a continuous electrolytic foil forming process employing a constant d.c. voltage power supply, the speed with which the foil is drawn through the electrolyte is automatically adjusted by a feedback mechanism to maintain a constant value of forming curr... | 10/26/1976 |
