US2129586A - Gyroscopic instrument - Google Patents

Gyroscopic instrument Download PDF

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Publication number
US2129586A
US2129586A US101868A US10186836A US2129586A US 2129586 A US2129586 A US 2129586A US 101868 A US101868 A US 101868A US 10186836 A US10186836 A US 10186836A US 2129586 A US2129586 A US 2129586A
Authority
US
United States
Prior art keywords
air
casing
rotor
conduits
axis
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 - Lifetime
Application number
US101868A
Other languages
English (en)
Inventor
Moller Waldemar
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.)
Askania Werke AG
Original Assignee
Askania Werke AG
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 Askania Werke AG filed Critical Askania Werke AG
Application granted granted Critical
Publication of US2129586A publication Critical patent/US2129586A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y10T137/2322—Jet control type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/12—Gyroscopes
    • Y10T74/1229—Gyroscope control
    • Y10T74/1232—Erecting
    • Y10T74/1239—Erecting by jet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/12—Gyroscopes
    • Y10T74/1261—Gyroscopes with pick off
    • Y10T74/1268—Pneumatic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/12—Gyroscopes
    • Y10T74/1289—Horizontal gyroscopes

Definitions

  • This invention relates to improvements in airdriven gyroscopes which are equipped with' a pneumatic positional pick-oi! for operating a remote indicator or an automatic steering device.
  • the invention relates further -to an improved method of operating saidgyroscopic apparatus.
  • One object of this invention is to greatly reduce the quantity of ⁇ air required for operating the instrument by a novel method which consists in using the same air twice for driving the gyroscope and also for operating the positional pick-oil'. f
  • the invention further aims to reduce the size and weight of the air pressure generating plant and consequently the source of power ⁇ for driving the same. This is an important consideration in connection with apparatus-designed for use on aircraft where a saving of weight, space and power is essential.
  • the invention further aims to increase the reliability oi the gyroscopic instrument by passing a smaller quantity of air through the same, thereby reducing the quantity of dust and mois-l ture which decreases the life and dependability o! the instrument.
  • the invention further aims to provide Ameans for using air of comparatively high pressure without employing special power consuming reduction valves for reducing the high pressure required for driving the ⁇ gyroscope to a relatively low pressure required by the pick-oil?.
  • Fig. 1 is a sectional elevation of a directional gyroscope equipped with a positional pick-ofi for movements about the vertical axis;
  • Fig. 2 is a top plan view of the instrument shown in Fig. 1, a part being removed;
  • Figs. 3 to 'I are simplified diagrammatic views o! different modifled forms of the invention.
  • a gyro rotor I-I spins about a ⁇ horizontal axis I2 in the rotor bearing member or trame I3 which. in turn, is pivcted in horizontal pivots I4, I5 at right angles to the rotor spin axis in a vertical frame Ii.
  • the verticalv frame is rotatable in vertical bearings Il, I8 in an airetight casing I9.
  • the vertical frame ' is shown as provided with a compass-card 20 visible through the window 2l of the casing.
  • Compressed air is supplied to the instrument through the pipe-coupling 22 and passes through the conduit 23. into a hollow space 24 and ⁇ through holes 25, 28 into another hollow space or chamber 21. From the latter chamber the air passes through a tube 28 to one or several nozzles Nin the part 30 secured to said tube 28.
  • the air is discharged against the rotor il which is shown as being provided' with cups or blades 3i.
  • the relatively high pressure of the air entering at 22 is greatly reduced by the expansion at the nozzle 29 and by imparting a, part of its energy to the rotor.
  • a disk 4l! preferably of circular shape and rigidly mounted 'eccentrically on an extension or shaft 4l of the vertical frame iso that it rotates with the frame.
  • the disk may have any other suitable forrn.
  • the conduits or pipes 34, 35. are shown as being mounted on a supporting member 42 which is rotatable in an annular recess 43 formed by an annular ring 44 on the casing I9.
  • the supporting member may be rotated with respect to the casing I9 by means of a worm 45 meshing with a worm wheel 46 integral with or secured to the supporting member 42.
  • the pipes or conduits 34, 35 are shown as being connected with ilxiblepipes 45, 50, connected at 41, 4B to the conduits and extending through openings in the supporting member 42.
  • the hose or pipes 49 connect the interior space of the said conduits or pipes 34, 35 with the chambers 5I, 52 of -a diaphragm casing 53.
  • Fig. 3 shows a modified form of the invention which is similar to the form in Fig. 1.
  • the outlets 36, 31 for the discharg- -able pump 1I are similar to the form in Fig. 1.
  • the conduits 49, 58 connect the pick-off with the differential pressure responsive device.
  • An additional shielding disk 60 may be provided to prei vent turbulent air from setting up a false pressure differential in the pipes or conduits 34, 35.
  • Fig. 4 shows a modiiied form of the invention in which air is continuously withdrawn from the casing through conduit l0 by means of a suit- Air enters the instrument through the openings 12,. passes through the variable openings 38, 39 controlled by the relative position of the pipes 34, 35 and the disk 40,and reaches the chamber 13 through the non-variable constrictions 36, 31. Through the openings 14, 15 the air enters the pipe 28 bearing the nozzle It appears that, due to the different cross sectional area of the nozzle 29 and the pick-oli' passages 34, 35, ⁇ the greater pressure drop will again be at the driving nozzle 29, similar to' the compressed air operated devices shown in Figs. Ito 3, where the air of high pressure expands at the driving nozzle and passes through the pick-oil' at relatively low pressure.
  • Fig. 5 shows a modied form of the apparatus shown in Fig. 4 with non-variable inlet 36, 31 and variable outlets 38,39, and disc 48, similar to the form shown in Fig. 3.
  • Fig. 6 shows another modified form of the invention.
  • the pick-off used in this instrument is shown and described in the patent to Wunsch No. 1,729,850, dated Oct. l, 1929.
  • compressed air enters at 23,l passes through the pipe 28 and drives the rotor when leaving the nozzle at 29.
  • the used air leaves the casing through the nozzles 80, 8
  • the jets emerging from the nozzles 80, 8l will partially enter the opposite pair of nozzles ⁇ 82, B3 depending upon the'relative position of the disk 40 and the nozzles and set up a differential pressure in the conduits 49, 5U.
  • the air will finally leave the pick-oil ⁇ casing through the opening 84 into the atmosphere.
  • Fig. 'l shows the instrument of Fig. 6 in somewhat madied form for vacuum operation.
  • Air at atmospheric pressure enters the pick-ofi casing through conduits' 80', 8
  • Adifferential pressure will be set up in conduits 49, 50 having nozzles 82, 83 opposite to the nozzles 80, 8
  • the air further passes through the opening 85 and the pipe 28 to the driving nozzle and is withdrawn from the gyro casing at 10.
  • a gyroscope having a casing; a rotor therein; air pressure means for driving said rotor; a rotor bearing member; means for supporting said member in said casing for movement about an axis at an angle to the rotor spin axis; and a positional pick-off includling discharge conduits connecting the interior oi the gyroscope casing with the atmosphere; and means controlled by relative turning of said rotor bearing member and casingfabout said supporting axis-for varying the discharge of. air through the said conduits.
  • a gyroscope having a casing; a rotor therein; air pressure means for driving said rotor; a rotor bearing member; means for supporting said member in said casing for movement about an axis at an angle to the rotor spin axis; and a positional pick-off including discharge conduits connecting the interior of the gyroscope casing with the atmosphere; a constriction in each of said conduits; and means controlled by relative turning of said rotor bearingl air through the said conduits, whereby a differential pressure is set up in the said conduits between the said constrictions and the said means for varying the discharge of air.
  • a gyroscope having a casing; means tocreate vacuum pressure in said casing; a gyro rotor in said casing; a rotor bearing member; means for supporting said member in said casing for movement about an axis at an angle to the rotor spin axis; a driving nozzle for spinning the rotor; means for admitting atmospheric air to said driving nozzle including conduits therefrom opening to the atmosphere; and means controlled by relative turning of said rotor bearing member and casing about said supporting axis for varying the opening of said conduits whereby a differential air iiow isset up in the' ⁇ in said casing for movement about an axis at an angle to the rotor spin axis; a driving nozzle for pheric air to said nozzle, said means including two conduits, a constriction in each of the conduits and means controlled by the relative turning of said rotor bearing member' and casing about said supporting axis for differentially varying the flow of air through said
  • va Agyroscope having a casing; a rotor therein; air pressure means for driving said rotor; a rotor bearing member; means for supporting said member in said casing for movement about an axis at an angle to 'the rotor spin axis; a pair of nozzles communicating with the interior of vsaid casing and permitting air to discharge from the same; a second pair oi nozzles positioned oppositely to the rst pair of ing the air Jets emitted from the .said'rst pair Y oi. nozzles thereby varying the pressure set up in the said second pair oi nozzles.
  • a gyrascope having a casing; means to create vacuum pressure in said casing; a gyro rotorin said casing; a rotor bearl said second casing; means to admit atmospheric air to said pair of nozzles; a second pair oi n'oz- Azles each positioned oppositely to a respective one voi. said rst pair of nozzles in said second casing;

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Gyroscopes (AREA)
US101868A 1935-09-26 1936-09-21 Gyroscopic instrument Expired - Lifetime US2129586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2129586X 1935-09-26

Publications (1)

Publication Number Publication Date
US2129586A true US2129586A (en) 1938-09-06

Family

ID=7986351

Family Applications (1)

Application Number Title Priority Date Filing Date
US101868A Expired - Lifetime US2129586A (en) 1935-09-26 1936-09-21 Gyroscopic instrument

Country Status (2)

Country Link
US (1) US2129586A (enrdf_load_stackoverflow)
BE (1) BE402090A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539624A (en) * 1945-04-02 1951-01-30 Arnold U Huggenberger Pneumatic measuring device
US2635581A (en) * 1949-01-27 1953-04-21 Horace E Karig Fluid servo apparatus
US2766730A (en) * 1953-11-02 1956-10-16 Edwards Miles Lowell Condition responsive pneumatic control system
US2809708A (en) * 1954-08-16 1957-10-15 Edwards Miles Lowell Vehicle speed limiting device with manual override means
US2848868A (en) * 1953-09-04 1958-08-26 Garrett Corp Temperature responsive fuel control apparatus for gas turbine
US2865207A (en) * 1952-09-20 1958-12-23 Edward J Poitras Gyro-vertical element
US2871704A (en) * 1953-06-23 1959-02-03 Tactair Inc Inner gimbal pickoff
US2907337A (en) * 1956-07-23 1959-10-06 Regulator S R L Web edge position signal generator
US3056416A (en) * 1958-07-11 1962-10-02 Nat Res Dev Control means for fluid pressure systems
US3058358A (en) * 1958-04-14 1962-10-16 Aircraft Products Co Directional gyroscope assembly for automatic pilots

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539624A (en) * 1945-04-02 1951-01-30 Arnold U Huggenberger Pneumatic measuring device
US2635581A (en) * 1949-01-27 1953-04-21 Horace E Karig Fluid servo apparatus
US2865207A (en) * 1952-09-20 1958-12-23 Edward J Poitras Gyro-vertical element
US2871704A (en) * 1953-06-23 1959-02-03 Tactair Inc Inner gimbal pickoff
US2848868A (en) * 1953-09-04 1958-08-26 Garrett Corp Temperature responsive fuel control apparatus for gas turbine
US2766730A (en) * 1953-11-02 1956-10-16 Edwards Miles Lowell Condition responsive pneumatic control system
US2809708A (en) * 1954-08-16 1957-10-15 Edwards Miles Lowell Vehicle speed limiting device with manual override means
US2907337A (en) * 1956-07-23 1959-10-06 Regulator S R L Web edge position signal generator
US3058358A (en) * 1958-04-14 1962-10-16 Aircraft Products Co Directional gyroscope assembly for automatic pilots
US3056416A (en) * 1958-07-11 1962-10-02 Nat Res Dev Control means for fluid pressure systems

Also Published As

Publication number Publication date
BE402090A (enrdf_load_stackoverflow) 1900-01-01

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