GB997815A - Improvements in lift bridges - Google Patents
Improvements in lift bridgesInfo
- Publication number
- GB997815A GB997815A GB19471/62A GB1947162A GB997815A GB 997815 A GB997815 A GB 997815A GB 19471/62 A GB19471/62 A GB 19471/62A GB 1947162 A GB1947162 A GB 1947162A GB 997815 A GB997815 A GB 997815A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bridge
- pivot
- raised
- lowered
- hydraulic
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/06—Bascule bridges; Roller bascule bridges, e.g. of Scherzer type
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/16—Brakes with two brake-blocks
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/008—Brakes acting on a linearly moving member
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/66—Wedges
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Braking Arrangements (AREA)
- Handcart (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
997,815. Bascule bridges. V. E. MACY and E. F. ALLEN. May 21, 1962 [May 29, 1961], No.19471/62. Heading E1G. [Also in Divisions F1 and F2] A bascule bridge 2, Fig. 1, is raised and lowered about a pivot 3 on an abutment 5 by a hydraulic drive system (Division F1) having a pair of piston and cylinder devices 7, 10 connected to a pivot 11 on the bridge and a fixed pivot 8. A brake is associated with each device and is normally engaged to retain the bridge in its raised or lowered position and is released by hydraulic pressure when the bridge is to be raised or lowered. A counterweight 6 is provided to reduce the effort required to move the bridge. In another embodiment, a bridge 103, Fig. 7, without a counterweight, may be raised or lowered by a pair of hydraulic cylinders 100, 101 connected together at a pivot 106 and to a pivot 102 on the bridge and a fixed pivot 104. A third hydraulic cylinder 105 is connected to the pivot 106. One or other of the cylinders 100 or 101 may be replaced by a solid linkage. Specification 997,816 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US113367A US3203513A (en) | 1961-05-29 | 1961-05-29 | Braking means for a hydraulic drive cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
GB997815A true GB997815A (en) | 1965-07-07 |
Family
ID=22349013
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36137/64A Expired GB997816A (en) | 1961-05-29 | 1962-05-21 | Improvements in brakes for hydraulic apparatus |
GB19471/62A Expired GB997815A (en) | 1961-05-29 | 1962-05-21 | Improvements in lift bridges |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36137/64A Expired GB997816A (en) | 1961-05-29 | 1962-05-21 | Improvements in brakes for hydraulic apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US3203513A (en) |
GB (2) | GB997816A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000058632A1 (en) * | 1999-03-26 | 2000-10-05 | Parker Hannifin Ab | Piston-cylinder device with piston rod locking means |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3354690A (en) * | 1965-05-10 | 1967-11-28 | Pines Engineering Co Inc | Machine for shaping tubular stock |
US3379100A (en) * | 1965-07-07 | 1968-04-23 | Houdaille Industries Inc | Hydraulic rotary actuator with fail-safe locking means |
US3431937A (en) * | 1965-09-08 | 1969-03-11 | Chemetron Corp | Medical service unit |
US3353455A (en) * | 1965-09-20 | 1967-11-21 | Westinghouse Air Brake Co | Fluid pressure motor |
US3427015A (en) * | 1967-01-26 | 1969-02-11 | Lamb Co F Jos | Hydrostatic centering device |
US3466686A (en) * | 1967-05-17 | 1969-09-16 | Earle F Allen | Method and means for moving structures hydraulically |
DE1804857B2 (en) * | 1968-10-24 | 1971-11-25 | Hänchen, Siegfried, 7304 Ruit | DEVICE FOR CLAMPING AN AXIALLY MOVABLE PISTON ROD |
US3575087A (en) * | 1968-11-18 | 1971-04-13 | Lourdes Ind Inc | Locking cylinder |
US3599761A (en) * | 1969-02-07 | 1971-08-17 | Bendix Corp | Hydraulic power brake system |
US3556259A (en) * | 1969-03-13 | 1971-01-19 | Valentine E Macy Jr | Fail-safe brake with elastomeric actuator |
GB1287942A (en) * | 1969-04-11 | 1972-09-06 | ||
GB1287941A (en) * | 1969-04-11 | 1972-09-06 | ||
US3995534A (en) * | 1973-06-30 | 1976-12-07 | Adolf Rastetter | Safety arrester for arresting a hydraulically operated lifting ram of a hydraulic elevator |
US3941141A (en) * | 1974-05-03 | 1976-03-02 | Robert Eddie L | Blowout preventer locking apparatus and method |
US3946642A (en) * | 1974-11-21 | 1976-03-30 | General Signal Corporation | Hydraulic brake actuating and locking device |
DE2540402C2 (en) * | 1975-09-11 | 1986-10-09 | Stabilus Gmbh, 5400 Koblenz | Gas spring with mechanical locking |
DE2845266C2 (en) * | 1978-10-18 | 1983-03-03 | Ringspann Albrecht Maurer Kg, 6380 Bad Homburg | Safety parking brake for hydraulic lifts, lifting platforms and the like. |
DE2945133C2 (en) * | 1979-11-08 | 1983-09-01 | Robert Bosch Gmbh, 7000 Stuttgart | Braking device for fluid-driven, rodless working cylinders |
US4836091A (en) * | 1980-03-17 | 1989-06-06 | De-Sta-Co Division, Dover Resources, Inc. | Hydraulic work support |
US4305565A (en) * | 1980-04-07 | 1981-12-15 | Hydril Company | Variable position ram lock for blowout preventers |
DE3118449A1 (en) * | 1981-05-09 | 1982-12-02 | Sitema Gesellschaft für Sicherheitstechnik und Maschinenbau mbH, 7500 Karlsruhe | "CLAMPING DEVICE" |
DE3136311A1 (en) * | 1981-09-12 | 1983-04-21 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | "PRESSURE-OPERATED WORKING CYLINDER" |
US4511114A (en) * | 1982-01-18 | 1985-04-16 | The United States Of America As Represented By The United States Department Of Energy | Centrally activated pipe snubbing system |
JPS60132106A (en) * | 1983-12-21 | 1985-07-15 | Takashi Kimura | Pneumatic cylinder equipped with intermediate stop mechanism |
US4564088A (en) * | 1984-01-09 | 1986-01-14 | Kyoho Machine Works, Ltd. | Axial braking device |
US4791855A (en) * | 1985-03-11 | 1988-12-20 | Pubot Giken Co., Ltd. | Cylinder locking device |
US5402866A (en) * | 1993-01-08 | 1995-04-04 | International Transouip Industries, Inc. | Brake assembly with new locking mechanism |
JP3856934B2 (en) * | 1998-01-27 | 2006-12-13 | Smc株式会社 | Fluid pressure cylinder with lock mechanism |
DE10140561A1 (en) * | 2001-08-17 | 2003-02-27 | Ina Schaeffler Kg | Releasable clamping lock has one clamp track on fixed part and other in form of run-up ramp for clamping body on other part |
US7131518B2 (en) * | 2003-11-14 | 2006-11-07 | Nexen Group, Inc. | Motion control apparatus with backlash reduction |
DE102005016723A1 (en) * | 2005-04-11 | 2006-10-12 | Zimmer, Günther | Brake and / or clamping device with roller-mounted wedge gear |
US9175770B2 (en) * | 2011-02-04 | 2015-11-03 | Airbus Sas And | Secured locking corset for shutter controlled by actuator, in particular actuator corset for aircraft door and locking method |
ITMN20130010A1 (en) * | 2013-10-07 | 2015-04-08 | Erre Di S R L | LOCKING. |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT81002B (en) * | 1917-05-18 | 1920-07-26 | Knorr Bremse Ag Knorr Bremse A | Locking device for the piston of brake cylindersLocking device for the piston of brake cylinders. . |
US1608392A (en) * | 1925-09-18 | 1926-11-23 | Arthur W Hannah | Brake attachment |
US2382263A (en) * | 1943-02-20 | 1945-08-14 | Wagner Electric Corp | Braking system |
US2627328A (en) * | 1948-09-22 | 1953-02-03 | Westinghouse Air Brake Co | Control apparatus |
US2705059A (en) * | 1949-08-27 | 1955-03-29 | Franks Mfg Corp | External brake |
US2689965A (en) * | 1950-06-16 | 1954-09-28 | Beacon Production Equipment Co | Extensible adjustable dock board |
US2881457A (en) * | 1953-08-11 | 1959-04-14 | Dover Corp | Loading dock ramp |
US2845902A (en) * | 1955-01-07 | 1958-08-05 | Borg Warner | Self-locking fluid motor |
US2959260A (en) * | 1955-10-17 | 1960-11-08 | Thew Shovel Co | Dual control system for cranes and the like |
US2889895A (en) * | 1955-12-19 | 1959-06-09 | John E Snow | Pneumatic energy absorber |
-
1961
- 1961-05-29 US US113367A patent/US3203513A/en not_active Expired - Lifetime
-
1962
- 1962-05-21 GB GB36137/64A patent/GB997816A/en not_active Expired
- 1962-05-21 GB GB19471/62A patent/GB997815A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000058632A1 (en) * | 1999-03-26 | 2000-10-05 | Parker Hannifin Ab | Piston-cylinder device with piston rod locking means |
US6612221B1 (en) | 1999-03-26 | 2003-09-02 | Parker Hannifin Ab | Piston-cylinder device with piston rod locking means |
Also Published As
Publication number | Publication date |
---|---|
US3203513A (en) | 1965-08-31 |
GB997816A (en) | 1965-07-07 |
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