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GB800756A - Improvements in or relating to instrument suspension - Google Patents

Improvements in or relating to instrument suspension

Info

Publication number
GB800756A
GB800756A GB22421/56A GB2242156A GB800756A GB 800756 A GB800756 A GB 800756A GB 22421/56 A GB22421/56 A GB 22421/56A GB 2242156 A GB2242156 A GB 2242156A GB 800756 A GB800756 A GB 800756A
Authority
GB
United Kingdom
Prior art keywords
gimbal
supported
trunnions
springs
journalled
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
GB22421/56A
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
Publication of GB800756A publication Critical patent/GB800756A/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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

800,756. Mounting indicating apparatus. BOYSEN, J., [trading as PLATH, C. (Firm of)]. July 19, 1956 [Sept. 17, 1955; Feb. 4, 1956], No. 22421/56. Class 106 (4). [Also in Group XX] A mounting for an indicating instrument, e.g., a compass case comprises at least one gimbal supported by helical or spiral springs having not more than 1.5 turns and a natural frequency of oscillation not greater than 4 cycles per second. As shown in Fig. 1, the compass case 1 is journalled at 3 in gimbal 5 and the trunnions 6, 6<SP>1</SP> of which are journalled in brackets 7, 7<SP>1</SP> supported by helical springs 8, 8<SP>1</SP> on a base frame 10. The trunnions 6, 6<SP>1</SP> may also be spring mounted on the brackets 7, 7<SP>1</SP>. In the form shown in Fig. 3, the outer gimbal 23 is supported by lengths of material 25 (e.g. metal, natural or synthetic fibres) in the enlarged heads of rods 26 which are axially adjustable in bearings 28, 29 and supported by the springs 32, 33. Alternatively, the trunnions 24 of gimbal 23 may be connected to a lever by a universal joint to a lever which is coupled to rods 26 by another universal joint; rocking levers may replace the univeral joints. In a further form, the compass case may be connected to the inner gimbal by a pair of rollers which engage arcuate slots in that gimbal, which is connected in the same way to the outer gimbal.
GB22421/56A 1955-09-17 1956-07-19 Improvements in or relating to instrument suspension Expired GB800756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE800756X 1955-09-17

Publications (1)

Publication Number Publication Date
GB800756A true GB800756A (en) 1958-09-03

Family

ID=6713944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22421/56A Expired GB800756A (en) 1955-09-17 1956-07-19 Improvements in or relating to instrument suspension

Country Status (1)

Country Link
GB (1) GB800756A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464842A (en) * 1981-08-03 1984-08-14 Brookes & Gatehouse Limited Suspension systems for flux gate compasses
GB2157435A (en) * 1984-04-13 1985-10-23 Suunto Oy Vibration attenuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464842A (en) * 1981-08-03 1984-08-14 Brookes & Gatehouse Limited Suspension systems for flux gate compasses
GB2157435A (en) * 1984-04-13 1985-10-23 Suunto Oy Vibration attenuator

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