GB1059113A – Improvements relating to hydraulic testing means
– Google Patents
GB1059113A – Improvements relating to hydraulic testing means
– Google Patents
Improvements relating to hydraulic testing means
Info
Publication number
GB1059113A
GB1059113A
GB39518/63A
GB3951863A
GB1059113A
GB 1059113 A
GB1059113 A
GB 1059113A
GB 39518/63 A
GB39518/63 A
GB 39518/63A
GB 3951863 A
GB3951863 A
GB 3951863A
GB 1059113 A
GB1059113 A
GB 1059113A
Authority
GB
United Kingdom
Prior art keywords
cylinder
hydraulic
ram
liquid
supply system
Prior art date
1963-10-08
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
GB39518/63A
Inventor
Philip Benjamin Hinde
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.)
Avery Weigh Tronix Ltd
Original Assignee
W&T Avery Ltd
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.)
1963-10-08
Filing date
1963-10-08
Publication date
1967-02-15
1963-10-08
Application filed by W&T Avery Ltd
filed
Critical
W&T Avery Ltd
1963-10-08
Priority to GB39518/63A
priority
Critical
patent/GB1059113A/en
1964-09-23
Priority to DEA47143A
priority
patent/DE1258145B/en
1964-10-01
Priority to US400724A
priority
patent/US3333417A/en
1967-02-15
Publication of GB1059113A
publication
Critical
patent/GB1059113A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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
F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
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
F15B2211/20538—Type of pump constant capacity
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
F15B2211/41—Flow control characterised by the positions of the valve element
F15B2211/413—Flow control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source 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
F15B2211/42—Flow control characterised by the type of actuation
F15B2211/421—Flow control characterised by the type of actuation mechanically
F15B2211/423—Flow control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
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
F15B2211/50—Pressure control
F15B2211/505—Pressure control characterised by the type of pressure control means
F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow 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
F15B2211/50—Pressure control
F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source 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
F15B2211/70—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
F15B2211/7051—Linear output members
F15B2211/7052—Single-acting 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
F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
F15B2211/7051—Linear output members
F15B2211/7053—Double-acting 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
F15B2211/76—Control of force or torque of the output member
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
Y10S60/907—Working member positioned against counterforce by constantly applied motive fluid
Abstract
1,059,113. Testing physical properties. W. & T. AVERY Ltd. Sept. 29, 1964 [Oct. 8, 1963], No. 39518/63. Heading G1S. A device for adjusting the effect of elasticity of components of a hydraulically powered testing apparatus comprises a ram and a supply system to supply hydraulic liquid to the ram, the device comprising means responsive to increasing liquid pressure in said system and ram for decreasing the hydraulic liquid capacity of the supply system and ram. The device comprises two cylinders 6, 7 in coaxial alignment with coaxial pistons 11, 12 respectively of different cross-sectional areas joined together so that as one piston 11 or 12 sinks into its cylinder the other emerges. A compressed helical spring 13 bears against the end of the larger piston 11 and the inner end of cylinder 7. Each cylinder has an inlet/outlet passage 15, 16 for connection into the hydraulic circuit of a testing machine. In a hydraulic testing machine the hydraulic fluid is fed from a reservoir 20 via a main chamber 19 and a needle valve 21 to the supply system 22 which is connected to a hydraulic ram 24. The inlet/outlet passage 15 is connected to the main chamber 19 and the passage 16 to a delivery pipe 23 so that the constant pressure difference achieved by a valve 21 and a piston 29 also exists between the liquid parts within the cylinders 6, 7. Since the pistons 6, 7 have different crosssectional areas, with deformations of the parts due to elasticity, the larger piston 6 will be forced out of its cylinder against the action of the spring 13 forcing the cylinder 7 into its cylinder and so displacing some of the liquid from the latter into the supply system 22 to decrease the capacity thereof. As the pressures fall the reverse takes place and the capacity is increased.
GB39518/63A
1963-10-08
1963-10-08
Improvements relating to hydraulic testing means
Expired
GB1059113A
(en)
Priority Applications (3)
Application Number
Priority Date
Filing Date
Title
GB39518/63A
GB1059113A
(en)
1963-10-08
1963-10-08
Improvements relating to hydraulic testing means
DEA47143A
DE1258145B
(en)
1963-10-08
1964-09-23
Device for adjusting the rigidity of a hydraulic testing device
US400724A
US3333417A
(en)
1963-10-08
1964-10-01
Hydraulic testing means
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB39518/63A
GB1059113A
(en)
1963-10-08
1963-10-08
Improvements relating to hydraulic testing means
Publications (1)
Publication Number
Publication Date
GB1059113A
true
GB1059113A
(en)
1967-02-15
Family
ID=10409994
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB39518/63A
Expired
GB1059113A
(en)
1963-10-08
1963-10-08
Improvements relating to hydraulic testing means
Country Status (3)
Country
Link
US
(1)
US3333417A
(en)
DE
(1)
DE1258145B
(en)
GB
(1)
GB1059113A
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3688500A
(en)
*
1969-09-17
1972-09-05
Marcel Georges Chancel
Fluid pressure system for obtaining, controlling or correcting micrometric displacements in machine-tools and other apparatus
US4572001A
(en)
*
1984-01-30
1986-02-25
Queen’s University At Kingston
Method and apparatus for measuring thermodynamic response
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1467522A
(en)
*
1921-03-31
1923-09-11
Amsler Alfred
Pressure-control valve
US2102865A
(en)
*
1934-06-20
1937-12-21
Vickers Inc
Combined flow control and relief valve
1963
1963-10-08
GB
GB39518/63A
patent/GB1059113A/en
not_active
Expired
1964
1964-09-23
DE
DEA47143A
patent/DE1258145B/en
active
Pending
1964-10-01
US
US400724A
patent/US3333417A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
DE1258145B
(en)
1968-01-04
US3333417A
(en)
1967-08-01
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