GB268392A - Improvements relating to speed and distance indicators - Google Patents
Improvements relating to speed and distance indicatorsInfo
- Publication number
- GB268392A GB268392A GB8541/27A GB854127A GB268392A GB 268392 A GB268392 A GB 268392A GB 8541/27 A GB8541/27 A GB 8541/27A GB 854127 A GB854127 A GB 854127A GB 268392 A GB268392 A GB 268392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheel
- mileage
- actuates
- electromagnet
- shoe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
- G04B47/06—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass
- G04B47/061—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass calculating scales for indicating relationship between quantity and time
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/02—Devices characterised by the use of mechanical means
- G01P3/12—Devices characterised by the use of mechanical means by making use of a system excited by impact
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Distances Traversed On The Ground (AREA)
Abstract
268,392. Mombur, G. March 27. 1926, [Convention date]. Counters actuated by electric and magnetic means; transfer mechanism.-In a speedometer having mileage counters a measuring or balance wheel, the movement of which is restrained by a spring, has imparted to it a succession of slight, equal angular displacements, separated by intervals of time which are a function of the speed to be measured. Fig. 1 shows an arrangement in which the displacements a.re imparted to the wheel 1 by magnetic means comprising an electromagnet 20 the winding of which is energized intermittently by a contact maker 29 on the speed shaft. The magnetic circuit passes through a spring-pulled member 21 which is pivoted on a shaft 22 and carries. on an eccentric pivot 26, a shoe 25 which is adapted to engage and displace the wheel 1 when the electromagnet is energized. Adjustable stops 24, 27 are provided, and the magnetic binding between the parts 21. 25 is relied upon to secure the desired action. A second winding 30 may be arranged to demagnetize the magnet 20 when the current is ruptured. Fig. 7 shows an arrangement in which an electromagnet 33, which is energized intermittently by an interrupter 29 on the speed shaft, actuates an armature 41 pivoted at 42. A dependent link 46 has a beak 48 adapted to ride over successive teeth on a ratchet wheel 49. As the link moves in passing a tooth, it engages the balance wheel 1 and imparts an impulse to it. An extension 45 acts upon the wheel as a brake. Total mileage and' trip mileage counters may be actuated from a suitable part of the mechanism such as the ratchet wheel 49, Fig. 7, or by a shoe similar to the shoe 25, Fig. 1, engaging a pawl controlled wheel. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter. The movement of the mileage registering mechanism may be communicated to a shaft 51, Fig. 11 (Cancelled) having a crank 53 carrying two pawls 54, 58, the former of which actuates a ratchet 55 of a total mileage counter 57, and the latter of which actuates a trip dial indicator and pointer. The pawl 58 has two noses, one of which engages a wheel 61 and advances a units and tens pointer over a dial. Onceeach revolution this nose engages a deep notch 61<1> and allows the second nose to engage another wheel and advance a " hundreds disc behind an opening in the dial of the instrument. Means are provided for zeroizing the trip register, and for varying the gear ratio of the driving mechanism- This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR268392X | 1926-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB268392A true GB268392A (en) | 1927-12-01 |
Family
ID=8885728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8541/27A Expired GB268392A (en) | 1926-03-27 | 1927-03-28 | Improvements relating to speed and distance indicators |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH127572A (en) |
GB (1) | GB268392A (en) |
-
1927
- 1927-03-21 CH CH127572D patent/CH127572A/en unknown
- 1927-03-28 GB GB8541/27A patent/GB268392A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH127572A (en) | 1928-10-01 |
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