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GB199632A - Improvements in or relating to tyre pressure gauges - Google Patents

Improvements in or relating to tyre pressure gauges

Info

Publication number
GB199632A
GB199632A GB2125622A GB2125622A GB199632A GB 199632 A GB199632 A GB 199632A GB 2125622 A GB2125622 A GB 2125622A GB 2125622 A GB2125622 A GB 2125622A GB 199632 A GB199632 A GB 199632A
Authority
GB
United Kingdom
Prior art keywords
ammeter
arm
coil
pressure
tyre
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
Application number
GB2125622A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HERBERT EPHRAIM LUNDEEN
Original Assignee
HERBERT EPHRAIM LUNDEEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HERBERT EPHRAIM LUNDEEN filed Critical HERBERT EPHRAIM LUNDEEN
Priority to GB2125622A priority Critical patent/GB199632A/en
Priority to FR554885D priority patent/FR554885A/en
Publication of GB199632A publication Critical patent/GB199632A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0467—Electric contact means, e.g. slip-rings, rollers, brushes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

199,632. Richardson, O. E., and Lundeen, H. E. Aug. 3, 1922. Tell-tale apparatus.-A pressure gauge mounted on the valve stem of each tyre of a motor vehicle has a hand moving over a rheostat in circuit with an ammeter mounted on the dashboard of the vehicle, the ammeter being graduated in pressure units. The casing 11 of the gauge is secured to the valve stem 8. The Bourdon tube 12 moves an arm 16 through quadrant and pinion gear, the arm working over a coil 18 wound on a non-conducting bar 19. The arm 16 is connected to an insulated drum 28 by leads 25, 27, while one end of the coil is connected by a lead 22 to a hub bolt and thus earthed. A brush 32 engages the drum 28 and through a lead 31 is connected to one terminal of an ammeter 30, the other terminal of which is connected through a resistance 36 and switch 37 to one pole of a battery 39, the other pole of which is earthed to the vehicle frame. As the pressure in the tyre varies, the brush 24 in the arm 16 moves over the coil 18, varying the amount of resistance in the ammeter circuit and thus the reading of the ammeter, which is graduated in pressure units.
GB2125622A 1922-08-03 1922-08-03 Improvements in or relating to tyre pressure gauges Expired GB199632A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2125622A GB199632A (en) 1922-08-03 1922-08-03 Improvements in or relating to tyre pressure gauges
FR554885D FR554885A (en) 1922-08-03 1922-08-08 Improvements in devices for indicating the air pressure in the tires of automobile tires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2125622A GB199632A (en) 1922-08-03 1922-08-03 Improvements in or relating to tyre pressure gauges

Publications (1)

Publication Number Publication Date
GB199632A true GB199632A (en) 1923-06-28

Family

ID=10159829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2125622A Expired GB199632A (en) 1922-08-03 1922-08-03 Improvements in or relating to tyre pressure gauges

Country Status (2)

Country Link
FR (1) FR554885A (en)
GB (1) GB199632A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526124A (en) * 1947-03-21 1950-10-17 Leon E Dobson Motor vehicle tire pressure indicator
US2565434A (en) * 1949-12-07 1951-08-21 Donald O Kocmich Electrical indicating device
US2896183A (en) * 1956-07-05 1959-07-21 Honeywell Regulator Co Potentiometer
US2956251A (en) * 1952-12-30 1960-10-11 Bourns Inc Pressure responsive instrument
US3596509A (en) * 1966-03-26 1971-08-03 Giulio Raffaelli Apparatus for measuring tire pressures
US4581925A (en) * 1985-01-14 1986-04-15 Crutcher William L Wheel mounted electronic tire pressure gauge

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942904C (en) * 1950-10-14 1956-05-09 Phil Rudolf Engelmann Dr Device for monitoring tire pressure in vehicles and airplanes with pneumatic tires
US6055925A (en) * 1994-09-12 2000-05-02 Horton; William E. Air gauge wheel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526124A (en) * 1947-03-21 1950-10-17 Leon E Dobson Motor vehicle tire pressure indicator
US2565434A (en) * 1949-12-07 1951-08-21 Donald O Kocmich Electrical indicating device
US2956251A (en) * 1952-12-30 1960-10-11 Bourns Inc Pressure responsive instrument
US2896183A (en) * 1956-07-05 1959-07-21 Honeywell Regulator Co Potentiometer
US3596509A (en) * 1966-03-26 1971-08-03 Giulio Raffaelli Apparatus for measuring tire pressures
US4581925A (en) * 1985-01-14 1986-04-15 Crutcher William L Wheel mounted electronic tire pressure gauge

Also Published As

Publication number Publication date
FR554885A (en) 1923-06-19

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