GB1472568A - Pneumatic vibrator - Google Patents
Pneumatic vibratorInfo
- Publication number
- GB1472568A GB1472568A GB3145474A GB3145474A GB1472568A GB 1472568 A GB1472568 A GB 1472568A GB 3145474 A GB3145474 A GB 3145474A GB 3145474 A GB3145474 A GB 3145474A GB 1472568 A GB1472568 A GB 1472568A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- bore
- end cap
- exhaust
- insert
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
- B06B1/183—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/10—Compacting by jarring devices only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Percussive Tools And Related Accessories (AREA)
- Casting Devices For Molds (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
1472568 Vibrators OSBORN MFG CORP 16 July 1974 [24 Aug 1973] 31454/74 Heading F2X A pneumatic vibrator includes a bore 14 in which a plunger B is reciprocatingly positioned for movement between the position shown (or striking position) and an exhaust position, an air inlet port 26, 28 and an air exhaust port 72 communicating with the bore 14 on opposite sides of the plunger B, and exhaust passage means through the plunger B for exhausting air from the inlet port 26, 28 to the exhaust port 72 in the exhaust position of the plunger B. End caps C, D are screwthreaded into the ends of the vibrator body 12, inlet port 26, 28 extending through the end cap C and exhaust port 72 through the end cap D. A cylindrical striker insert E made of a material having low sound transmitting characteristics, e.g. natural or synthetic rubber, is tightly fitted within a cylindrical recess 30 formed in end cap C. Compressed air from the inlet port 26, 28 passes through an axial hole 34 and at least one radially extending notch formed in the insert E and enters an annular space 44 surrounding the frusto-conical striker end portion of the plunger B. The compressed air forces the plunger B away from the insert E toward its exhaust position against the biasing action of a coil spring 64 housed within an axial bore 58 of the plunger B. As the plunger B moves to the right, communication is established between the annular space 44 and the exhaust port 72 via a circumferential groove 50 formed in the bore 14 and radial bores 60, an axial bore 102 and the larger diameter axial bore 58 of the plunger B. The exhausting action occurs before the plunger end makes contact with the end surface 70 of end cap D. An enlarged outwardly opening flared recess 74 is formed in end cap D coaxial with exhaust port 72, a noise muffler 76 of metal wool or multi-layer metal mesh being held within this recess by means of a fine screen 78, the muffler and screen together preventing foreign particles from entering the bore 14 through the exhaust port 72. End cap D has an enlarged cylindrical recess 104 extending inward from end surface 70 for receiving the end of spring 64. The large cavity defined by the bores 58, 104 and a portion of bore 14 allows a substantial quantity of air to accumulate under slight pressure for aiding spring 64 in shifting plunger B back to its striking position. The repeated striking of insert E by plunger B rapidly builds up heat as a result of internal friction, which heat is however dissipated by the continuous flow of cool compressed air in contact with insert E.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US391236A US3917233A (en) | 1973-08-24 | 1973-08-24 | Vibrator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1472568A true GB1472568A (en) | 1977-05-04 |
Family
ID=23545838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3145474A Expired GB1472568A (en) | 1973-08-24 | 1974-07-16 | Pneumatic vibrator |
Country Status (7)
Country | Link |
---|---|
US (1) | US3917233A (en) |
JP (1) | JPS5045721A (en) |
CA (1) | CA1017213A (en) |
DE (1) | DE2439586A1 (en) |
FR (1) | FR2241348B3 (en) |
GB (1) | GB1472568A (en) |
IT (1) | IT1032526B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004953A1 (en) * | 1985-01-16 | 1987-08-27 | Kockum Sonics Ab | Apparatus for generating in particular low-frequency sound |
CN108994263A (en) * | 2018-08-27 | 2018-12-14 | 厦门汉莱德机械有限公司 | A kind of Pneumatic vibrator and core shooter |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4129388A (en) * | 1977-07-25 | 1978-12-12 | Mckee Ronald H | Vibrator for flowing granular material |
FR2556993B1 (en) * | 1983-12-22 | 1986-09-19 | Somafer Sa | TOOL FOR CLEANING THE CASTING RIGOLES |
CA2077259A1 (en) * | 1990-03-01 | 1991-09-02 | Gregg K. Hobbs | Random vibration generating apparatus |
US5836202A (en) * | 1990-03-01 | 1998-11-17 | Qualmark Corporation | Exciter mounting for random vibration generating table |
DE4029295A1 (en) * | 1990-09-16 | 1992-03-19 | Karl Eickmann | Externally pressurised sealing sleeve for reciprocating piston - has sealing sleeve bore dia., forming clearance seal with piston, increasing between its front and rear ends |
US5540109A (en) * | 1992-11-05 | 1996-07-30 | Qualmark Corporation | Apparatus and method for thermal and vibrational stress screening |
DE4345256C2 (en) * | 1993-12-18 | 1995-11-16 | Bruker Analytische Messtechnik | Process for the automatic quantitative filling of powder or granular samples |
DE4343400C1 (en) * | 1993-12-18 | 1995-06-08 | Bruker Analytische Messtechnik | Granular sample vessel rests in recess connected to shaker assembly |
US5804732A (en) * | 1995-12-21 | 1998-09-08 | Venturedyne, Ltd. | Vibrator-driven table apparatus |
DE19652707C2 (en) * | 1996-12-18 | 2000-07-20 | Netter Gmbh | Pneumatic knocker |
US5969256A (en) * | 1996-12-26 | 1999-10-19 | Hobbs; Gregg K. | Modular vibration system |
US5836683A (en) * | 1997-03-11 | 1998-11-17 | Institute For Advanced Engineering | Mixing apparatus using acoustic resonance |
US5871277A (en) * | 1997-06-04 | 1999-02-16 | Lash; Richard L. | Industrial vibrator |
CN1094381C (en) * | 1998-07-14 | 2002-11-20 | 社团法人高等技术研究院研究组合 | Material mixing apparatus using acoustic resonance |
US6283626B1 (en) * | 1998-10-02 | 2001-09-04 | Institute For Advanced Engineering | Multiphase mixing apparatus using acoustic resonance |
CN103447222A (en) * | 2012-06-04 | 2013-12-18 | 毛海峰 | Pneumatic pipeline vibrator |
CN105032751B (en) * | 2015-07-13 | 2017-12-12 | 王洪波 | A kind of pneumatic vibrator unit |
CN111347010A (en) * | 2020-03-30 | 2020-06-30 | 滁州市兴义装备模具制造有限公司 | Vibration table for producing refrigerator liner die casting blank based on V method casting |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US711859A (en) * | 1900-12-24 | 1902-10-21 | William M Holden | Pneumatic tool. |
US789916A (en) * | 1904-11-05 | 1905-05-16 | Alfred E Johnson | Hammer-drill. |
US1428630A (en) * | 1920-12-02 | 1922-09-12 | Oliver S Hammond | Vibrator for rapping patterns in molding |
US2884901A (en) * | 1957-11-05 | 1959-05-05 | Wesley M Chandler | Silencer for air vibrators |
US3132704A (en) * | 1960-12-05 | 1964-05-12 | Bassinger Tool Company | Fluid actuated impact tool |
US3718318A (en) * | 1971-04-05 | 1973-02-27 | Sherwin Williams Co | Vibrator for foundry molding and like machines |
-
1973
- 1973-08-24 US US391236A patent/US3917233A/en not_active Expired - Lifetime
-
1974
- 1974-07-16 GB GB3145474A patent/GB1472568A/en not_active Expired
- 1974-07-17 CA CA205,116A patent/CA1017213A/en not_active Expired
- 1974-08-08 JP JP49090353A patent/JPS5045721A/ja active Pending
- 1974-08-09 IT IT69512/74A patent/IT1032526B/en active
- 1974-08-17 DE DE2439586A patent/DE2439586A1/en not_active Withdrawn
- 1974-08-22 FR FR7428856A patent/FR2241348B3/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004953A1 (en) * | 1985-01-16 | 1987-08-27 | Kockum Sonics Ab | Apparatus for generating in particular low-frequency sound |
CN108994263A (en) * | 2018-08-27 | 2018-12-14 | 厦门汉莱德机械有限公司 | A kind of Pneumatic vibrator and core shooter |
Also Published As
Publication number | Publication date |
---|---|
US3917233A (en) | 1975-11-04 |
IT1032526B (en) | 1979-06-20 |
FR2241348A1 (en) | 1975-03-21 |
CA1017213A (en) | 1977-09-13 |
JPS5045721A (en) | 1975-04-24 |
FR2241348B3 (en) | 1976-09-24 |
DE2439586A1 (en) | 1975-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] |