GB783312A - Diaphragm valves - Google Patents
Diaphragm valvesInfo
- Publication number
- GB783312A GB783312A GB13317/55A GB1331755A GB783312A GB 783312 A GB783312 A GB 783312A GB 13317/55 A GB13317/55 A GB 13317/55A GB 1331755 A GB1331755 A GB 1331755A GB 783312 A GB783312 A GB 783312A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compressor
- diaphragm
- casting
- plaster
- bonnet
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/126—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on a rib perpendicular to the fluid line
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- External Artificial Organs (AREA)
Abstract
783,312. Making plaster &c. moulds. GRINNELL CORPORATION. May 9, 1955 [Sept. 15, 1954], No. 13317/55. Class 87(2). [Also in Group XXIX] The compressor or actuator 41 of a diaphragm valve is shaped to conform to those portions of the diaphragm 38 between its clamped periphery and the transverse clamped portion adjacent the weir 22 when freely distorted in the closed position but not under line pressure so that the diaphragm has complete backing support under line pressure. The compressor is shaped by a moulding process. The ends of a conventional compressor are cut off and part of the valve bonnet 32 is cut away at 72. With the diaphragm 38 closed on the weir 22, but not under pressure, a plaster-like mixture e.g. of Plaster of Paris, or a material known under the Trade Name Tamastone is run into the valve bonnet 32 as at 74, Fig. 9, to form a male casting 78, Fig. 10. The bonnet is then removed and inverted and the male casting 78 is surrounded by a sheet 76 of metal or other material to enable a female casting 80 to be made as shown in Fig. 10. The casting 80 is then conveniently sectioned to enable a mould for the compressor to be made by known methods. The contour of the compressor may alternatively be taken directly from the mould 78 if desired. Reference has been directed by the Comptroller to Specification 732,201 [Group XXIX].
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US783312XA | 1954-09-15 | 1954-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB783312A true GB783312A (en) | 1957-09-18 |
Family
ID=22143341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13317/55A Expired GB783312A (en) | 1954-09-15 | 1955-05-09 | Diaphragm valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB783312A (en) |
-
1955
- 1955-05-09 GB GB13317/55A patent/GB783312A/en not_active Expired
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