GB271930A - Improvements in pneumatic despatch apparatus - Google Patents
Improvements in pneumatic despatch apparatusInfo
- Publication number
- GB271930A GB271930A GB289626A GB289626A GB271930A GB 271930 A GB271930 A GB 271930A GB 289626 A GB289626 A GB 289626A GB 289626 A GB289626 A GB 289626A GB 271930 A GB271930 A GB 271930A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- tube
- piston
- cylinder
- tubes
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
- B65G51/04—Conveying the articles in carriers having a cross-section approximating that of the pipe or tube; Tube mail systems
- B65G51/08—Controlling or conditioning the operating medium
- B65G51/16—Controlling or conditioning the operating medium varying, e.g. starting or stopping, gas pressure or flow
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
271,930. Sturtevant Engineering Co., Ltd., and Backhouse, E. Feb. 1, 1926. Pneumatic dispatch apparatus. - Means for automatically reducing or stopping the flow of air through, a pneumatic dispatch system when no transmission is being effected comprise a cylinder 5 communicating with the dispatch tube 4 through a port 9, and fitted at its lower end with a hinged valve 6 adapted to be opened by gravity when no carrier is in the tube 4. A valve 11. sleeved on an axial tube 12 in the cylinder 5. carries a disc 10 at its lower end, and when air admitted by the opened valve 6 raises the disc 10, the valve 11 is adapted to cover ports 13 in the tube 12 and shut off communication between the tube 4 and the upper side of an annular piston 14 fitting in the cylinder 5. The upper part of the cylinder 5 is connected through an adjustable bleed-valve 17 with a suction-pipe 19, so that when the parts 13 are closed the piston 14 rises at a. rate determined by the setting of the valve 17. Near the top of its stroke, the piston 14 engages a cross-bar 20 fixed on a rod in the tube. 12 and attached to the valve 6, which is thus closed. The sleeve valve 11 then falls to open the ports 13 and allow the piston 14 to fall. A disc 31 on the sleeve 11 fits in an inverted dash-pot 30, so that the sleeve. 11 shall not fall during the time for which the flow of air is interrupted in the tube. 4 by the discharge of a carrier, although the longer time required for inserting another carrier in the tube 4 allows the sleeve 11 to fall and reset the control mechanism. In pneumatic tubes of great length, the time during which the piston 14 rises may be extended by an auxiliary piston attached to the lower end of the control cylinder valve rod and working in an oil dash-pot. In a modified construction, adapted to link up two tubes 4 and admit air to the tube in use, the open end of the control cylinder is connected to the tubes by a two-way box, on the underside of which are arranged side by side the inlets for the carriers. Ports inside the box connect the tubes with the air supply, and a swing flap valve, operated by a forked lever carried on a vertical spindle, is adapted to close one or other of the ports, the forked lever being actuated by projections on the hinged closing doors of the tubes. The flap valve is biassed to either side of the centre line so that it will remain on its seat when thrown over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB289626A GB271930A (en) | 1926-02-01 | 1926-02-01 | Improvements in pneumatic despatch apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB289626A GB271930A (en) | 1926-02-01 | 1926-02-01 | Improvements in pneumatic despatch apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB271930A true GB271930A (en) | 1927-06-01 |
Family
ID=9748051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB289626A Expired GB271930A (en) | 1926-02-01 | 1926-02-01 | Improvements in pneumatic despatch apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB271930A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016112148A1 (en) * | 2015-01-09 | 2016-07-14 | Maguire Stephen B | Air flow limiter with closed / open sensing |
| US9550636B2 (en) | 2014-02-20 | 2017-01-24 | Stephen B. Maguire | Method and apparatus for resin delivery with adjustable air flow limiter |
| US9550635B2 (en) | 2014-02-20 | 2017-01-24 | Stephen B. Maguire | Air flow limiter with closed/open sensing |
| US9604793B2 (en) | 2014-02-20 | 2017-03-28 | Maguire Products, Inc. | Resin delivery system with air flow regulator |
| US9937651B2 (en) | 2014-02-20 | 2018-04-10 | Novatec, Inc. | Resin delivery apparatus and method with plural air flow limiters |
| US10131506B2 (en) | 2014-12-09 | 2018-11-20 | Maguire Products, Inc. | Selective matrix conveyance apparatus and methods for granular resin material |
| US10138076B2 (en) | 2015-02-25 | 2018-11-27 | Stephen B. Maguire | Method for resin delivery including metering introduction of external air to maintain desired vacuum level |
| US10144598B2 (en) | 2014-02-20 | 2018-12-04 | Novatec, Inc. | Variable frequency drive combined with flow limiter set for limiting flow to selected level above design choice |
| US10175701B2 (en) | 2014-02-20 | 2019-01-08 | Stephen B. Maguire | Air flow regulator with detector and method for regulating air flow |
| US10179696B2 (en) | 2015-01-27 | 2019-01-15 | Novatec, Inc. | Variable opening slide gate for regulating material flow into airstream |
| US10179708B2 (en) | 2014-02-20 | 2019-01-15 | Maguire Products, Inc. | Granular material delivery system with air flow limiter |
| US10280015B2 (en) | 2014-02-20 | 2019-05-07 | Stephen B. Maguire | Method for adjustably restricting air flow and apparatus therefor |
| US10414083B2 (en) | 2014-02-20 | 2019-09-17 | Novatec, Inc. | Multiple sensor resin delivery optimizing vacuum pump operation |
-
1926
- 1926-02-01 GB GB289626A patent/GB271930A/en not_active Expired
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10175701B2 (en) | 2014-02-20 | 2019-01-08 | Stephen B. Maguire | Air flow regulator with detector and method for regulating air flow |
| US10280015B2 (en) | 2014-02-20 | 2019-05-07 | Stephen B. Maguire | Method for adjustably restricting air flow and apparatus therefor |
| US10988328B2 (en) | 2014-02-20 | 2021-04-27 | Novatec, Inc. | Flow limiting and variable frequency drive apparatus for limiting flow to selected level |
| US9604793B2 (en) | 2014-02-20 | 2017-03-28 | Maguire Products, Inc. | Resin delivery system with air flow regulator |
| US10913195B2 (en) | 2014-02-20 | 2021-02-09 | Novatec, Inc. | Plural air flow regulator delivery apparatus and method |
| US9550636B2 (en) | 2014-02-20 | 2017-01-24 | Stephen B. Maguire | Method and apparatus for resin delivery with adjustable air flow limiter |
| US10414083B2 (en) | 2014-02-20 | 2019-09-17 | Novatec, Inc. | Multiple sensor resin delivery optimizing vacuum pump operation |
| US10179708B2 (en) | 2014-02-20 | 2019-01-15 | Maguire Products, Inc. | Granular material delivery system with air flow limiter |
| US9550635B2 (en) | 2014-02-20 | 2017-01-24 | Stephen B. Maguire | Air flow limiter with closed/open sensing |
| US9937651B2 (en) | 2014-02-20 | 2018-04-10 | Novatec, Inc. | Resin delivery apparatus and method with plural air flow limiters |
| US10144598B2 (en) | 2014-02-20 | 2018-12-04 | Novatec, Inc. | Variable frequency drive combined with flow limiter set for limiting flow to selected level above design choice |
| US10131506B2 (en) | 2014-12-09 | 2018-11-20 | Maguire Products, Inc. | Selective matrix conveyance apparatus and methods for granular resin material |
| WO2016112148A1 (en) * | 2015-01-09 | 2016-07-14 | Maguire Stephen B | Air flow limiter with closed / open sensing |
| US10179696B2 (en) | 2015-01-27 | 2019-01-15 | Novatec, Inc. | Variable opening slide gate for regulating material flow into airstream |
| US10138076B2 (en) | 2015-02-25 | 2018-11-27 | Stephen B. Maguire | Method for resin delivery including metering introduction of external air to maintain desired vacuum level |
| US10906225B2 (en) | 2015-03-12 | 2021-02-02 | Novatec, Inc. | Multiple sensor resin delivery method for optimizing vacuum pump operation |
| US11059212B2 (en) | 2015-03-12 | 2021-07-13 | Novatec, Inc. | Resin delivery method and apparatus using multiple sensors for optimal vacuum pump operation |
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