GB130074A - Improvements in Instruments for Indicating the Rate of Ascent or Descent of Aircraft. - Google Patents

Improvements in Instruments for Indicating the Rate of Ascent or Descent of Aircraft.

Info

Publication number
GB130074A
GB130074A GB79718A GB79718A GB130074A GB 130074 A GB130074 A GB 130074A GB 79718 A GB79718 A GB 79718A GB 79718 A GB79718 A GB 79718A GB 130074 A GB130074 A GB 130074A
Authority
GB
United Kingdom
Prior art keywords
disk
descent
indicating
rate
rack
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
GB79718A
Inventor
Hugh Oswald Short
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB79718A priority Critical patent/GB130074A/en
Publication of GB130074A publication Critical patent/GB130074A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Transmission Devices (AREA)

Abstract

130,074. Short, H. O. Jan. 14, 1918. Differential speed indicators.-Apparatus for indicating the rate of ascent and descent 'of aircraft by a determination of the rate of change of barometric pressure comprises a series of vacumn chambers 6, in a casing communicating with the atmosphere, the movements of which are communicated through a rack 8, pinion 9<x>, and spur gearing to a screwed shaft 1 bearing a friction disk 3 adapted to engage a clockdriven cone or disk 4. Movement of the disk 3 is communicated to a pointer 10 by a fork 15 which surrounds the hub of the disk and is connected by a pin and slot to a pivoted sector 18 engaging a pinion 19 on the indicating-shaft. The weight of the rack 8 and a plate 13 carrying the rack is balanced by light spiral springs 7 wound round supporting-posts 14. When a cone is employed, a reversing-gear is necessary to allow the device to be used to indicate the speed of descent; but in the case of the disk, the indications are given on opposite sides of the scale, as shown in Fig. 2.
GB79718A 1918-01-14 1918-01-14 Improvements in Instruments for Indicating the Rate of Ascent or Descent of Aircraft. Expired GB130074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB79718A GB130074A (en) 1918-01-14 1918-01-14 Improvements in Instruments for Indicating the Rate of Ascent or Descent of Aircraft.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB79718A GB130074A (en) 1918-01-14 1918-01-14 Improvements in Instruments for Indicating the Rate of Ascent or Descent of Aircraft.

Publications (1)

Publication Number Publication Date
GB130074A true GB130074A (en) 1919-07-31

Family

ID=32340311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB79718A Expired GB130074A (en) 1918-01-14 1918-01-14 Improvements in Instruments for Indicating the Rate of Ascent or Descent of Aircraft.

Country Status (1)

Country Link
GB (1) GB130074A (en)

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