GB1018638A - Improvements in and relating to methods and means for maintaining confronting members in spaced relation - Google Patents

Improvements in and relating to methods and means for maintaining confronting members in spaced relation

Info

Publication number
GB1018638A
GB1018638A GB4476864A GB4476864A GB1018638A GB 1018638 A GB1018638 A GB 1018638A GB 4476864 A GB4476864 A GB 4476864A GB 4476864 A GB4476864 A GB 4476864A GB 1018638 A GB1018638 A GB 1018638A
Authority
GB
United Kingdom
Prior art keywords
plates
plate
transducer
spaced
nov
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
GB4476864A
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Publication of GB1018638A publication Critical patent/GB1018638A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

1,018,638. Bearings. COMPAGNIE DES COMPTEURS. Nov. 3, 1964 [Nov. 4, 1963], No. 44768/64. Heading F2A. [Also in Division H4] A plate 13, Fig. 1 (not shown), is maintained spaced from a plate 12, by causing the plate 12 to emit sonic or ultra-sonic waves in the medium e.g. air occupying the space between the plates, the wavelength being greater than the spacing between the plates whereby a sufficient radiation pressure is produced in the medium to maintain the plates in spaced relationship. The plate 12 is fixed to a transducer 11 having excitation windings connected to an alternating current generator. The transducer 11 is of the magnetostriction or piezo-electric type in which the alternating current causes ultrasonic vibrations of the plate 12. Complementary spherical or frusto-conical surfaces 14, 15 on the plates ensure that the plates remain in lateral alignment. In a modification fixed magnet inserts provided in the plates ensure the lateral alignment. In Fig. 4b (not shown) the transducer is in the form of a ring which emits radial ultrasonic waves to maintain a shaft spaced therefrom. The transducer may be disposed in a shaft which is to be maintained spaced from a surrounding solid cylinder (Fig. 4c, not shown).
GB4476864A 1963-11-04 1964-11-03 Improvements in and relating to methods and means for maintaining confronting members in spaced relation Expired GB1018638A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR952582A FR1388739A (en) 1963-11-04 1963-11-04 Method and device for stable holding without material contact of two parts facing each other

Publications (1)

Publication Number Publication Date
GB1018638A true GB1018638A (en) 1966-01-26

Family

ID=8815741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4476864A Expired GB1018638A (en) 1963-11-04 1964-11-03 Improvements in and relating to methods and means for maintaining confronting members in spaced relation

Country Status (5)

Country Link
CH (1) CH426385A (en)
DE (1) DE1447343B2 (en)
DK (1) DK109624C (en)
FR (1) FR1388739A (en)
GB (1) GB1018638A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9172291B2 (en) 2011-03-15 2015-10-27 Etel S.A. Vertical actuator drive having gravity compensation
CN111059149A (en) * 2019-12-23 2020-04-24 昆明理工大学 Energy collecting device based on acoustic wave suspension and energy recovery method thereof
US11747253B2 (en) 2018-12-21 2023-09-05 Anton Paar Gmbh Measuring drive having ultrasound-mounted shaft, measuring device, method and use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9172291B2 (en) 2011-03-15 2015-10-27 Etel S.A. Vertical actuator drive having gravity compensation
US11747253B2 (en) 2018-12-21 2023-09-05 Anton Paar Gmbh Measuring drive having ultrasound-mounted shaft, measuring device, method and use
CN111059149A (en) * 2019-12-23 2020-04-24 昆明理工大学 Energy collecting device based on acoustic wave suspension and energy recovery method thereof

Also Published As

Publication number Publication date
DE1447343B2 (en) 1971-11-04
CH426385A (en) 1966-12-15
DE1447343A1 (en) 1968-11-14
FR1388739A (en) 1965-02-12
DK109624C (en) 1968-05-20

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