GB190817494A - An Improved Vacuum Pump. - Google Patents
An Improved Vacuum Pump.Info
- Publication number
- GB190817494A GB190817494A GB190817494DA GB190817494A GB 190817494 A GB190817494 A GB 190817494A GB 190817494D A GB190817494D A GB 190817494DA GB 190817494 A GB190817494 A GB 190817494A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheels
- plug
- plugs
- tappet
- movement
- 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
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
17,494. Zeitlin, J. March 22, 1909. Plug cocks.-Relates to oscillating-plug distributing-valves employed in apparatus for the production of high vacua. The coned plugs 28 of the distributing-valves are mounted on ball bearings 40 in casings 39, and are provided with double ball thrust devices 45, 46 of known kind. The plugs are oscillated intermittently by means of a revolving tappet 32 on a crank-shaft 14. The tappet successively engages projections on the faces of two wheels 30 in gear with each other and with pinions 29 on the plug spindles. The actual movement of the plug is, however, effected nearly instantaneously by the action of tension springs 33 which connect the wheels 30. The tappet rotates the wheels 30 until the springs are extended to the maximum amount in the line joining the centres of the wheels, whereupon the retracting-movement of the springs carries the wheels further round and operates the plugs. The movement is limited by the engagement of pins 35 on the wheels with fixed stops 34.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190817494T | 1909-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190817494A true GB190817494A (en) | 1909-10-21 |
Family
ID=32489568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190817494D Expired GB190817494A (en) | 1909-03-20 | 1909-03-20 | An Improved Vacuum Pump. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190817494A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5398974A (en) * | 1991-04-19 | 1995-03-21 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Pipe connecting member |
-
1909
- 1909-03-20 GB GB190817494D patent/GB190817494A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5398974A (en) * | 1991-04-19 | 1995-03-21 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Pipe connecting member |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB153982A (en) | Improvements in transmission gearing | |
GB190817494A (en) | An Improved Vacuum Pump. | |
US1548545A (en) | Apparatus for balancing the axial thrust in single helical toothed wheel gearing | |
DE2033271C3 (en) | Lubricating device for wheel bearings with planetary gears | |
US1511390A (en) | Flexible shaft | |
US1017910A (en) | Friction-gearing. | |
US1203165A (en) | Power-transmitting mechanism. | |
US2524381A (en) | Machine bearing protecting device | |
DE911082C (en) | Rolling gear | |
US2222814A (en) | Gear reduction | |
GB191400609A (en) | Improvements in Wire Drawing Machines. | |
GB605104A (en) | Improvements in or relating to rotary pumps | |
GB190918845A (en) | Improvements in Wind Motors. | |
GB112272A (en) | Improvements in Bearings. | |
GB110903A (en) | A Variable-speed Device. | |
DE418429C (en) | Device for transmitting the piston movement to the drive shaft of prime movers or working machines with alternately rotating and stationary pistons | |
US1400212A (en) | Fuel-press | |
US2487230A (en) | Shaft seal | |
GB191308846A (en) | Improvements in Apparatus for Transmission of Power. | |
GB190823422A (en) | Improvements relating to Cycle Variable Speed Driving Gears. | |
GB178963A (en) | Improvements in packing devices for rotary shafts or spindles | |
GB191408890A (en) | Improvements in or relating to Toothed Reduction Gearing. | |
GB155200A (en) | Toothed wheel gear | |
GB149189A (en) | Improvements in roller or ball bearings | |
GB141824A (en) | Improvements in and relating to shaft couplings |