GB1078147A - Pneumatic servo especially useful in extensometers - Google Patents
Pneumatic servo especially useful in extensometersInfo
- Publication number
- GB1078147A GB1078147A GB43687/65A GB4368765A GB1078147A GB 1078147 A GB1078147 A GB 1078147A GB 43687/65 A GB43687/65 A GB 43687/65A GB 4368765 A GB4368765 A GB 4368765A GB 1078147 A GB1078147 A GB 1078147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- fluid
- chamber
- pressure
- piston member
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
- F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
1,078,147. Fluid-pressure servomotor systems. INSTRON CORPORATION. Oct. 14, 1965 [Oct. 19, 1964], No. 43687/65. Heading G3P. An extensometer comprises clamp arms 78, 80 which receive the specimen each arm being connected by a blade spring, between parts 38, 40 and 34, 36, to a piston member 18. Fluid from a single source is fed through passages 102, 106 to adjustable throttle valves 108, 118 and thence through passages 110, 120 to chambers 122, 112 on opposite sides of the piston. The chamber 112 is also connected through passage 114 and valve 116 to a chamber 117 to act on the upper side of the piston so that the effective upper face of the piston is larger than the lower face. The pressure in chamber 112 is controlled by a leak-off valve 26 carried by the piston member and loaded by a blade spring 28 into contact with the clamp arm 78 thus the piston member 18 assumes a position relative to the position of the clamp arm when the fluid-pressure forces on the piston are balanced. The two pistons act through rods 58, 60 on a transformer 56 to provide an indication of the size of the specimen between the clamps.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US404683A US3290999A (en) | 1964-10-19 | 1964-10-19 | Pneumatic servo especially useful in extensometers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1078147A true GB1078147A (en) | 1967-08-02 |
Family
ID=23600610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB43687/65A Expired GB1078147A (en) | 1964-10-19 | 1965-10-14 | Pneumatic servo especially useful in extensometers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3290999A (en) |
| GB (1) | GB1078147A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030223B (en) * | 2018-08-22 | 2021-03-26 | 佛山市星学金属制品有限公司 | Starter fork spring dynamometer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1512804A (en) * | 1924-10-21 | Automatic begtti | ||
| FR1191239A (en) * | 1957-02-26 | 1959-10-19 | Sperry Gyroscope Co Ltd | Hydraulic system for controlling servo motors |
| FR1169890A (en) * | 1957-03-21 | 1959-01-07 | Double-acting hydraulic cylinder distribution, feed and control device | |
| US3048151A (en) * | 1960-05-12 | 1962-08-07 | Flick Reedy Corp | Remote control for a piston and cylinder device |
-
1964
- 1964-10-19 US US404683A patent/US3290999A/en not_active Expired - Lifetime
-
1965
- 1965-10-14 GB GB43687/65A patent/GB1078147A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3290999A (en) | 1966-12-13 |
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