GB909249A - Hydraulic power transmission apparatus - Google Patents
Hydraulic power transmission apparatusInfo
- Publication number
- GB909249A GB909249A GB20374/60A GB2037460A GB909249A GB 909249 A GB909249 A GB 909249A GB 20374/60 A GB20374/60 A GB 20374/60A GB 2037460 A GB2037460 A GB 2037460A GB 909249 A GB909249 A GB 909249A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- motor
- actuated
- torque
- displacement
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
- B65H23/063—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle and controlling web tension
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
- F16H61/472—Automatic regulation in accordance with output requirements for achieving a target output torque
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Gearings (AREA)
- Reciprocating Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Transmission Device (AREA)
Abstract
909,249. Winding webs. KEELAVITE CO. Ltd. May 31, 1961 [June 9, 1960], No. 20374/60. Class 100 (1). [Also in Group XXIX] In an hydraulic power transmission system comprising a variable-displacement pump 1 supplying a motor 6 driving a coiling drum 8 for a web 9 small adjustments to the torque output of the motor to maintain constant tension in the web are effected by a valve 16 actuated by a jockey pull 11 and arranged to connect the inlet 5 and exhaust 7 of the motor to the delivery and exhaust conduits 17a, 21 respectively of an auxiliary pressure source to increase the torque and to make reverse connections to reduce the torque. Large deflections of the valve 16, giving rise to large flows in conduits 13, 14 provided with restrictions 51, 52, cause deflection of a diaphragm assembly 49, 50 to operate one of a pair of electric switches 46, 47 to cause operation of a solenoid-actuated valve 34 in such direction as to cause movement of a servo piston 28 in a direction to adjust the displacement of the pump 1 to change the torque of the motor 6 such that the valve 16 is returned to neutral position. The switches 46, 47 have holding magnets 53 to provide snap action. In a modification, a flow-responsive meter driving an electric generator to energize a solenoid-actuated switch in response to flow in either direction in the conduit 14 takes the place of the restrictions 51, 52, diaphragms 49, 50 &c. Which of the two solenoids 39, 40 is energized is selected by a further switch in accordance with the direction of displacement of the valve 16. In a further modification, means for measuring flow in the conduits 13, 14 are dispensed with and the valve 34 is actuated in accordance with the magnitude and sense of an error between a speed signal from an electric generator driven by the motor 6 and a signal from a rheostat connected to the displacement adjusting means of the pump 1. Instead of the jockey roller acting directly on the valve 16 it may act through a strain gauge &c. and an electric amplifier.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB20374/60A GB909249A (en) | 1960-06-09 | 1960-06-09 | Hydraulic power transmission apparatus |
DEK43944A DE1176443B (en) | 1960-06-09 | 1961-06-08 | Arrangement for the automatic control of liquid gears according to the displacement principle |
US115719A US3057162A (en) | 1960-06-09 | 1961-06-08 | Hydraulic power transmission apparatus |
FR864414A FR1291463A (en) | 1960-06-09 | 1961-06-09 | Hydraulic transmission |
CH672661A CH368358A (en) | 1960-06-09 | 1961-06-09 | Motor unit with hydraulic transmission |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB20374/60A GB909249A (en) | 1960-06-09 | 1960-06-09 | Hydraulic power transmission apparatus |
GB3057162X | 1960-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB909249A true GB909249A (en) | 1962-10-31 |
Family
ID=60326991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20374/60A Expired GB909249A (en) | 1960-06-09 | 1960-06-09 | Hydraulic power transmission apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US3057162A (en) |
CH (1) | CH368358A (en) |
DE (1) | DE1176443B (en) |
FR (1) | FR1291463A (en) |
GB (1) | GB909249A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3251304A (en) * | 1963-08-05 | 1966-05-17 | Drott Mfg Corp | Variable volume pump control |
US3541710A (en) * | 1967-08-22 | 1970-11-24 | Marion Power Shovel Co | Dragline bucket and reeving therefor |
FR2049173B1 (en) * | 1969-06-10 | 1974-09-20 | Edilmac Spa | |
DE2017272A1 (en) * | 1970-04-10 | 1971-10-21 | Linde Ag | Overload protection for a hydrostatically driven crane |
US3865066A (en) * | 1973-08-22 | 1975-02-11 | Rucker Co | Tension mooring device |
GB1523279A (en) * | 1974-11-18 | 1978-08-31 | Massey Ferguson Services Nv | Control systems for variable capacity hydraulic machines |
US4113237A (en) * | 1975-10-28 | 1978-09-12 | D. G. Beyer, Inc. | Cable tension control |
US4986783A (en) * | 1989-03-02 | 1991-01-22 | Oswald Brown | Outboard motor power takeoff |
US5772184A (en) * | 1996-01-25 | 1998-06-30 | Knight Industries, Inc. | Load support mounted control arrangement for fluid pressure operated hoist |
US5680806A (en) * | 1996-08-23 | 1997-10-28 | Henry; Michael F. | Compressible fluid flow control valve and constant speed pneumatic motor application therefor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2402789A (en) * | 1937-08-14 | 1946-06-25 | Waterbury Tool Co | Power transmission |
US2425496A (en) * | 1944-10-16 | 1947-08-12 | Oilgear Co | Winder drive |
FR1203759A (en) * | 1957-04-05 | 1960-01-21 | Keelavite Co Ltd | Device sensitive to the modification of the speed ratio between two rotating parts |
-
1960
- 1960-06-09 GB GB20374/60A patent/GB909249A/en not_active Expired
-
1961
- 1961-06-08 US US115719A patent/US3057162A/en not_active Expired - Lifetime
- 1961-06-08 DE DEK43944A patent/DE1176443B/en active Pending
- 1961-06-09 FR FR864414A patent/FR1291463A/en not_active Expired
- 1961-06-09 CH CH672661A patent/CH368358A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US3057162A (en) | 1962-10-09 |
FR1291463A (en) | 1962-04-20 |
CH368358A (en) | 1963-03-31 |
DE1176443B (en) | 1964-08-20 |
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