GB1039221A - Improvements in or relating to bellows - Google Patents
Improvements in or relating to bellowsInfo
- Publication number
- GB1039221A GB1039221A GB2064661A GB2064661A GB1039221A GB 1039221 A GB1039221 A GB 1039221A GB 2064661 A GB2064661 A GB 2064661A GB 2064661 A GB2064661 A GB 2064661A GB 1039221 A GB1039221 A GB 1039221A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bellows
- magnet
- armature
- magnetic
- displaceable
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic bellows
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
1,039,221. Fluid actuation of switches; thermal switches. J. ARCHER, and J. L. OWNER. Aug. 31, 1962 [June 7, 1961], No. 20646/61. Heading H2B. A bellows 1 has a displaceable port to which is fixed a rigid member 13 carrying an armature 12 displaceable with respect to a permanent magnet 9, and the magnetic force between the armature and magnet is opposed to the bellows stiffness force over a range of displacement (see Figs. 2, 4, 5, 7, not shown) of the said port, and means are provided for preventing the armature from touching the magnet, i.e. a non-magnetic shim 17. Armature 12 and magnet 9 may be exchanged. For heater control purposes the bellows 1 is made temperature responsive and moves to actuate switch contacts 29, 31 (Fig. 3, not shown), to make or break a circuit to a heater. The switch sensitivity is increased by the magnetic biasing. The magnet 9 may be adjustably positioned by clamps 10, 11, and there may be a second adjustable magnet 40 (Fig. 6, not shown), to provide a magnetic force for each direction of movement of the bellows. Alternatively, shaped polepieces 47, 48 (Fig. 8, not shown), provide the "over-centre" action and the two stable states. A resilient strip 16, to which portion 14 of member 13 is joined, also affects the bellows movement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2064661A GB1039221A (en) | 1961-06-07 | 1961-06-07 | Improvements in or relating to bellows |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2064661A GB1039221A (en) | 1961-06-07 | 1961-06-07 | Improvements in or relating to bellows |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1039221A true GB1039221A (en) | 1966-08-17 |
Family
ID=10149358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2064661A Expired GB1039221A (en) | 1961-06-07 | 1961-06-07 | Improvements in or relating to bellows |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1039221A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2511687A1 (en) * | 1975-03-18 | 1976-09-30 | Festo Maschf Stoll G | Bellows for pumping cylinder - has bellow convolutions formed in two sections for each curve |
-
1961
- 1961-06-07 GB GB2064661A patent/GB1039221A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2511687A1 (en) * | 1975-03-18 | 1976-09-30 | Festo Maschf Stoll G | Bellows for pumping cylinder - has bellow convolutions formed in two sections for each curve |
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