GB860722A - Improvements in control means for valves used in fluid operated control systems - Google Patents
Improvements in control means for valves used in fluid operated control systemsInfo
- Publication number
- GB860722A GB860722A GB27977/59A GB2797759A GB860722A GB 860722 A GB860722 A GB 860722A GB 27977/59 A GB27977/59 A GB 27977/59A GB 2797759 A GB2797759 A GB 2797759A GB 860722 A GB860722 A GB 860722A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduit
- valve
- actuator
- fluid
- brakes
- 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
- 239000012530 fluid Substances 0.000 title abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/103—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
860,722. Controlling vehicles. CLARK EQUIPMENT CO. Aug. 17, 1959 [Oct. 13, 1958], No. 27977/59. Class 79(5). Fluid-activated forward and reverse clutches 14, 15 in the transmission of a wheeled vehicle are controlled by an hydraulic actuator 41 connected by a conduit 38 to the master brake cylinder 36 which is connected by a second conduit 40 and valve means 52, 60 to braking elements 50 at the wheels 51, movement of the piston means 34 in a direction to apply the brakes first initiating full movement of the actuator 41 and then causing the valve means to open. The actuator contains a piston 42 loaded by a spring 44 which permits the actuator to displace a valve 16 controlling the clutches before the valve 52 is lifted from its seat against the resistance of a spring 54 to ailow fluid to operate the brakes, the return valve 60 remaining seated due to its larger effective area in a passageway 58 as compared with that in the conduit 40. The valve 16 serves first to diminish the pressure supplied to conduit 12 and a direction selector 13 by first opening a by-pass 22 and thereafter throttling the conduit 12. The invention may be applied to an industrial lift truck. Specification 799,817 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US860722XA | 1958-10-13 | 1958-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB860722A true GB860722A (en) | 1961-02-08 |
Family
ID=22196068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27977/59A Expired GB860722A (en) | 1958-10-13 | 1959-08-17 | Improvements in control means for valves used in fluid operated control systems |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1130710B (en) |
| GB (1) | GB860722A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3017974A (en) | 1959-05-11 | 1962-01-23 | Gen Motors Corp | Transmission clutch control |
| US3050165A (en) | 1959-08-26 | 1962-08-21 | Caterpillar Tractor Co | System for automatically neutralizing a vehicle transmission upon application of brakes |
| DE1530485B1 (en) * | 1965-05-18 | 1969-09-11 | Crede & Co Gmbh Geb | Drive for forklifts |
| DE19513805A1 (en) * | 1995-04-11 | 1996-10-17 | Rexroth Mannesmann Gmbh | Inch brake device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2433443A (en) * | 1940-11-18 | 1947-12-30 | Edge Stanley Howard | Means for controlling clutch and brake mechanism of road and like vehicles |
| US2786368A (en) * | 1952-07-29 | 1957-03-26 | Clark Equipment Co | Transmission control system |
| BE553252A (en) * | 1955-12-15 | 1900-01-01 |
-
1959
- 1959-08-17 GB GB27977/59A patent/GB860722A/en not_active Expired
- 1959-10-02 DE DEC19898A patent/DE1130710B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1130710B (en) | 1962-05-30 |
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