Locomotive performance recorder
First Claim
1. A recording apparatus for producing a graphic representation representing the operating performance of a railroad locomotive having a diesel engine commanded by a governor, the apparatus comprising:
- a. a record paper device including drive means for moving the record paper linearly in proportion to time;
b. means for actuating said drive means; and
c. a recording mechanism for producing the graphic representation upon the record paper by plotting a trace representing actual engine governor balance positions relative to the normal governor balance position, said recording mechanism comprising;
1. means for producing a pair of spaced-apart parallel datum traces on the record paper representing the normal governor balance position;
2. means for producing a second trace on the record paper in relation to said datum traces, said second trace indicating actual governor balance positions; and
3. means operatively connected to the diesel engine for moving said second trace producing means in accordance with the actual governor balance positions of the diesel engine.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus for recording and displaying a graphic representation of the operating performance of a railroad locomotive by monitoring the response of its engine to a throttle control setting. The apparatus includes a chart paper recording device driven in relation to time and a marking mechanism actuated by a governor and referenced to its balance position at normal operation of the locomotive engine. The marking mechanism includes a pair of fixed styli and a movable stylus for producing a graph on the chart paper. The pair of fixed styli produce a pair of spaced-apart parallel datum traces on the chart paper wherein the area therebetween represents the normal governor balance position for a specified throttle setting. The movable stylus actuated by the governor produces a single trace on the chart paper relative to the parallel datum traces and represents the movement of the governor as it seeks to maintain its normal balance position.
10 Citations
11 Claims
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1. A recording apparatus for producing a graphic representation representing the operating performance of a railroad locomotive having a diesel engine commanded by a governor, the apparatus comprising:
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a. a record paper device including drive means for moving the record paper linearly in proportion to time; b. means for actuating said drive means; and c. a recording mechanism for producing the graphic representation upon the record paper by plotting a trace representing actual engine governor balance positions relative to the normal governor balance position, said recording mechanism comprising; 1. means for producing a pair of spaced-apart parallel datum traces on the record paper representing the normal governor balance position; 2. means for producing a second trace on the record paper in relation to said datum traces, said second trace indicating actual governor balance positions; and 3. means operatively connected to the diesel engine for moving said second trace producing means in accordance with the actual governor balance positions of the diesel engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification