ES384578A1 - Perfeccionamientos en instalaciones hidraulicas para el accionamiento de organos de maquinas de elevacion y de obraspublicas. - Google Patents

Perfeccionamientos en instalaciones hidraulicas para el accionamiento de organos de maquinas de elevacion y de obraspublicas.

Info

Publication number: ES384578A1
Authority: ES; Spain
Prior art keywords: hydraulic; hydraulic systems; motor; controlable; excavator
Prior art date: 1969-10-06
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

Application number

ES384578A

Other languages

English (en)

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

fur ELEKTROHYDRAULISCHE ANLAGE

Original Assignee

fur ELEKTROHYDRAULISCHE ANLAGE

Priority date (The priority date 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 date listed.)

1969-10-06

Filing date

1970-10-06

Publication date

1973-09-01

1970-10-06 Application filed by fur ELEKTROHYDRAULISCHE ANLAGE filed Critical fur ELEKTROHYDRAULISCHE ANLAGE

1973-09-01 Publication of ES384578A1 publication Critical patent/ES384578A1/es

Status Expired legal-status Critical Current

Links

230000001595 contractor effect Effects 0.000 abstract 1
230000000694 effects Effects 0.000 abstract 1
230000002441 reversible effect Effects 0.000 abstract 1

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/04—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
- E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance including an electronic controller
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/001—With multiple inputs, e.g. for dual control
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/003—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors with multiple outputs
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/005—With rotary or crank input
- F15B7/006—Rotary pump input
- 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
- F16H—GEARING
- F16H43/00—Other fluid gearing, e.g. with oscillating input or output
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20561—Type of pump reversible
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/27—Directional control by means of the pressure source
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/3051—Cross-check valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41554—Flow control characterised by the connections of the flow control means in the circuit being connected to a return line and a directional control valve
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7058—Rotary output members
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S60/00—Power plants
- Y10S60/911—Fluid motor system incorporating electrical system

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
Mining & Mineral Resources (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Fluid-Pressure Circuits (AREA)
Operation Control Of Excavators (AREA)

ES384578A 1969-10-06 1970-10-06 Perfeccionamientos en instalaciones hidraulicas para el accionamiento de organos de maquinas de elevacion y de obraspublicas. Expired ES384578A1 (es)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DK529769		1969-10-06

Publications (1)

Publication Number	Publication Date
ES384578A1 true ES384578A1 (es)	1973-09-01

Family

ID=8141272

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ES384578A Expired ES384578A1 (es)	1969-10-06	1970-10-06	Perfeccionamientos en instalaciones hidraulicas para el accionamiento de organos de maquinas de elevacion y de obraspublicas.

Country Status (8)

Country	Link
US (1)	US3678684A (es)
BE (1)	BE757019A (es)
CH (1)	CH524772A (es)
DE (1)	DE2048782A1 (es)
ES (1)	ES384578A1 (es)
FR (1)	FR2065002A5 (es)
NL (1)	NL7014491A (es)
ZA (1)	ZA704229B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3841795A (en) *	1972-07-17	1974-10-15	Caterpillar Tractor Co	Combined engine speed and pressure responsive control for variable displacement pumps
US4047578A (en) *	1974-03-27	1977-09-13	The Richmond Manufacturing Company	Portable earth boring machine
AT401675B (de) *	1989-03-30	1996-11-25	Weber Gisela	Steuereinrichtung für hydraulische arbeitszylinder
JP2707418B2 (ja) *	1993-12-30	1998-01-28	サムスンヘヴィーインダストリーズカンパニーリミテッド	ホイールタイプ掘削機の制動装置及び懸架装置制御用油圧システム
DE19716081C1 (de) *	1997-04-17	1998-08-13	Hydac Technology Gmbh	Antrieb für einen hydraulischen Differentialzylinder
DE102004029409A1 (de) *	2004-06-18	2006-01-05	Jungheinrich Ag	Druckmittelbetätigte Stelleinrichtung, insbesondere für eine Fahrzeuglenkvorrichtung
US20060168955A1 (en) *	2005-02-03	2006-08-03	Schlumberger Technology Corporation	Apparatus for hydraulically energizing down hole mechanical systems
DE102005031971A1 (de) *	2005-07-08	2007-01-11	Wilhelm Karmann Gmbh	Hydraulische Betätigungsanordnung
AT503811B1 (de) *	2006-05-18	2008-01-15	Hoerbiger Automatisierungstech	Hydraulische schaltungsanordnung zur betätigung eines hydraulischen arbeitszylinders
US8973358B2 (en) *	2011-10-21	2015-03-10	Caterpillar Inc.	Closed-loop hydraulic system having force modulation
US12085099B1 (en) *	2020-06-18	2024-09-10	Vacuworx Global, LLC	Flow control block for use with a vacuum material handler

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US19694A (en) *		1858-03-23		Xwater-tight w washstaetd
US2312213A (en) *	1941-06-18	1943-02-23	Oilgear Co	Hydraulic press
US2400685A (en) *	1941-12-18	1946-05-21	Baldwin Locomotive Works	Equalizing system
US2328980A (en) *	1942-05-16	1943-09-07	Vickers Inc	Power transmission
US2640323A (en) *	1950-12-15	1953-06-02	Detroit Harvester Co	Power unit of the fluid pressure type
US3018902A (en) *	1955-12-06	1962-01-30	Manning Maxwell & Moore Inc	Hydraulic crane
US2984985A (en) *	1959-02-16	1961-05-23	Macmillin Hydraulic Engineerin	Hydraulic operating and control system
US3161245A (en) *	1961-06-19	1964-12-15		Vehicle propulsion

1970
- 1970-06-22 ZA ZA704229A patent/ZA704229B/xx unknown
- 1970-09-29 CH CH1449770A patent/CH524772A/de not_active IP Right Cessation
- 1970-09-30 US US76760A patent/US3678684A/en not_active Expired - Lifetime
- 1970-10-02 NL NL7014491A patent/NL7014491A/xx unknown
- 1970-10-05 DE DE19702048782 patent/DE2048782A1/de active Pending
- 1970-10-05 BE BE757019D patent/BE757019A/xx unknown
- 1970-10-05 FR FR7035864A patent/FR2065002A5/fr not_active Expired
- 1970-10-06 ES ES384578A patent/ES384578A1/es not_active Expired

Also Published As

Publication number	Publication date
DE2048782A1 (de)	1971-04-22
ZA704229B (en)	1971-03-31
NL7014491A (es)	1971-04-08
BE757019A (fr)	1971-03-16
US3678684A (en)	1972-07-25
CH524772A (de)	1972-06-30
FR2065002A5 (es)	1971-07-23

Publication	Publication Date	Title
CA1076925A (en)	1980-05-06	SELECTIVE FLOW REGULATOR
SE389310B (sv)	1976-11-01	Hydrostatisk styranordning, serskilt for tunga fordon.
BE744955A (fr)	1970-07-27	Installation de commande hydraulique pour pelle mecanique travaillant en fouille
GB1450852A (en)	1976-09-29	Hydraulic systems
GB1290248A (es)	1972-09-20
SE381627B (sv)	1975-12-15	Hydraulisk pump eller motor, i synnerhet for hydrostatiska styrinrettningar pa motorfordon
GB1485686A (en)	1977-09-14	Hydraulic system for a pipelayer
CA934641A (en)	1973-10-02	Hydraulic system for controlling bulldozer blade
US3570245A (en)	1971-03-16	Hydraulic driving system with inertial motor
GB1169750A (en)	1969-11-05	Chassis for Excavators and the like
GB1489438A (en)	1977-10-19	Device for feeding two circuit systems with pressurised fluid
FI46714C (fi)	1973-06-11	Hydraulinen nosturi tai kääntönosturi, jossa on sähkömoottorikäyttöine n hydraulipumppu.
CS192012B1 (en)	1979-08-31	Facility for securing the momentum originating by the load for the hydraulic driven cranes,loaders and excavator
DK118168B (da)	1970-07-13	Hydraulisk radialstempelpumpe eller -motor.
GB1150734A (en)	1969-04-30	Hydraulic Reciprocating Pumps and Motors
FR2231537A1 (en)	1974-12-27	Hydrostatic tractor vehicle transmission - with torque limiter to protect transmission from excessive power take-off point torque
GB1405724A (en)	1975-09-10	Hydraulic control for hydraulically operated working devices
GB1157782A (en)	1969-07-09	A Tracked Vehicle including Hydraulically Actuated Operational and Transport Mechanisms
ES453262A1 (es)	1977-11-16	Perfeccionamientos en sistemas integradores para proporcio- nar fluidos a presion.
GB1289558A (es)	1972-09-20
GB994855A (en)	1965-06-10	Hydraulic control systems for self-propelled excavators
DE1815318B2 (de)	1973-07-12	Motorisch antreibbare verschiebevorrichtung zur spurweitenaenderung an gleiskettenfahrzeugen, insbesondere raupenbaggern oder -kranen
GB1049927A (en)	1966-11-30	Improvements in or relating to excavating or earthworking machines
GB1023416A (en)	1966-03-23	Shovelling machine
AT321505B (de)	1975-04-10	Schmiersystem für hydraulisch angetriebene Kräne, Bagger od. dgl.