GB606555A - Improvements in or connected with vibration damping mountings for optical observation instruments - Google Patents
Improvements in or connected with vibration damping mountings for optical observation instrumentsInfo
- Publication number
- GB606555A GB606555A GB1133044A GB1133044A GB606555A GB 606555 A GB606555 A GB 606555A GB 1133044 A GB1133044 A GB 1133044A GB 1133044 A GB1133044 A GB 1133044A GB 606555 A GB606555 A GB 606555A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- cylinder
- viscous
- grease
- stud
- 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
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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
- F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
606,555. Mountings for optical apparatus. BARR & STROUD, Ltd., FRENCH, Sm J. W., STRANG, J. M., and MAcGILL, C. D. June 13, 1944, No. 11330. [Class 97 (i)] [Also in Group XXXII] A resilient mounting for optical observation instruments is provided with at least one damping device comprising a piston slidable in a cylinder open to the atmosphere at both ends, the clearance space between the piston and cylinder containing a viscous, non-volatile, non-freezing oil or other medium which provides a viscous drag. As shown in Fig. 2, the piston-rod D has universal ball connections 4, 5 with the piston C and supported structure E, respectively, which allow relative lateral movements between the supporting structure A and the structure E, the seating 6 for the ball connection 5 carrying a grease chamber 7 of screw-cap type connected by a passage 8 with a passage 9 in the rod D from which radial passages 10 lead outwards for lubrication of all the working parts. The piston C, which is lagged with hard felt, cork, or fabric material 3 impregnated with viscous grease, has a coefficient of expansion greater than that of the cylinder so that when the temperature rises the pressure on the lagging 3 increases and so compensates for the decrease in viscosity of the grease. Figs. 3, 4 show a further construction in which the cylinder B is divided vertically at 11 and cut horizontally at 12 to give it resilience. A stud 13 passing freely through a lug 15 on one part is screwed into a lug 14 on the other part of the cylinder against the action of a spring washer 16 so that, as the piston expands with increase of temperature, increased pressure is exerted on the cylinder, which yields in accordance with the regulation of the stud 13. Specifications 502,535 and 588,137 are referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1133044A GB606555A (en) | 1944-06-13 | 1944-06-13 | Improvements in or connected with vibration damping mountings for optical observation instruments |
ES175236A ES175236A1 (en) | 1944-06-13 | 1946-10-09 | AN ELASTIC ANTI-VIBRATION MOUNT FOR OPTICAL OBSERVATION INSTRUMENTS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1133044A GB606555A (en) | 1944-06-13 | 1944-06-13 | Improvements in or connected with vibration damping mountings for optical observation instruments |
Publications (1)
Publication Number | Publication Date |
---|---|
GB606555A true GB606555A (en) | 1948-08-17 |
Family
ID=9984269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1133044A Expired GB606555A (en) | 1944-06-13 | 1944-06-13 | Improvements in or connected with vibration damping mountings for optical observation instruments |
Country Status (2)
Country | Link |
---|---|
ES (1) | ES175236A1 (en) |
GB (1) | GB606555A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2584502A1 (en) * | 1985-07-06 | 1987-01-09 | Messerschmitt Boelkow Blohm | Periscope mirror damping device |
WO2001073313A3 (en) * | 2000-03-29 | 2002-04-04 | Lord Corp | Magnetically controlled friction damper |
-
1944
- 1944-06-13 GB GB1133044A patent/GB606555A/en not_active Expired
-
1946
- 1946-10-09 ES ES175236A patent/ES175236A1/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2584502A1 (en) * | 1985-07-06 | 1987-01-09 | Messerschmitt Boelkow Blohm | Periscope mirror damping device |
WO2001073313A3 (en) * | 2000-03-29 | 2002-04-04 | Lord Corp | Magnetically controlled friction damper |
EP1669630A2 (en) * | 2000-03-29 | 2006-06-14 | Lord Corporation | Magnetically controlled friction damper |
EP1669630A3 (en) * | 2000-03-29 | 2006-07-05 | Lord Corporation | Magnetically controlled friction damper |
Also Published As
Publication number | Publication date |
---|---|
ES175236A1 (en) | 1946-11-16 |
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