GB848523A - Improvements in or relating to copying attachments for lathes or like machines - Google Patents
Improvements in or relating to copying attachments for lathes or like machinesInfo
- Publication number
- GB848523A GB848523A GB751658A GB751658A GB848523A GB 848523 A GB848523 A GB 848523A GB 751658 A GB751658 A GB 751658A GB 751658 A GB751658 A GB 751658A GB 848523 A GB848523 A GB 848523A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- stylus
- passages
- oil
- apertures
- 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
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
- B60T8/1812—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the means for pressure reduction
- B60T8/1818—Lever mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
- B23Q35/18—Means for transforming movement of the feeler or the like into feed movement of tool or work involving fluid means
- B23Q35/181—Means for transforming movement of the feeler or the like into feed movement of tool or work involving fluid means with a pattern composed of one or more lines used simultaneously
- B23Q35/183—Means for transforming movement of the feeler or the like into feed movement of tool or work involving fluid means with a pattern composed of one or more lines used simultaneously of one line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/24—Feelers; Feeler units
- B23Q35/26—Feelers; Feeler units designed for a physical contact with a pattern or a model
- B23Q35/36—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of a hydraulic or pneumatic copying system
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
- Turning (AREA)
Abstract
848,523. Copy turning. MYFORD ENGINEERING CO. Ltd. March 5, 1959 [March 8, 1958], No. 7516/58. Class 83(3). A lathe copying attachment comprises a plate 1, Fig. 1, attached to the machine slide 2, a tool slide 3 mounted movably thereon, and an hydraulic cylinder block 8 secured to the slide 3, with a piston 6 slidable therein and secured to the plate 1 by a rod 5. Ports 10, 11, Fig. 4, in the cylinder are connecte d to a valve chamber 14 in the block 8 by passages 12, 27, and 13, 28, respectively. A disc valve 15, Fig. 5, having apertures 20, 21, for connecting the ports 10, 11, to the passages 12, 27, and 13, 38, is rotatably mounted on a hollow pillar 16, which is connected to an oil pressure supply 17, and has apertures 18, 19, which connect with the apertures 20, 21, in the valve. A third aperture 29 in valve 15 communicates with an exhaust passage 30. The valve 15 is actuated by a stylus 32, against a spring plunger 33. In operation, the stylus 32 is held against a template 34, Fig. 5, by a spring plunger 33, and if the stylus is moved to the right by the template, during axial traverse of the saddle 2, the disc valve 15 is rotated counter-clockwise by a pin 35 on the stylus, and communication is made between the aperture 21 and the ports 24, 26, thus allowing oil to flow through passages 13, 28, to port 11 to move cylinder block 8 and the tool slide 3 to the right, the port 10 being connected to exhaust by passages 12, 25, 27, and 29. If movement of the stylus ceases, the valve is returned to its original position by the movement of the block 8. When the stylus moves to the left, the disc valve is rotated by the plunger 33, and the port 10 is supplied with oil under pressure, thus moving the tool slide 3 to the left. Due to the oil being supplied to both sides of the valve 15, side thrust on the valve is reduced.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW21462A DE1052441B (en) | 1957-07-08 | 1957-07-08 | Load-dependent brake force regulator for vehicles, especially rail vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB848523A true GB848523A (en) | 1960-09-21 |
Family
ID=7597019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB751658A Expired GB848523A (en) | 1957-07-08 | 1958-03-08 | Improvements in or relating to copying attachments for lathes or like machines |
Country Status (3)
| Country | Link |
|---|---|
| CH (2) | CH359153A (en) |
| DE (1) | DE1052441B (en) |
| GB (1) | GB848523A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH370660A (en) * | 1959-04-07 | 1963-07-15 | Fischer Ag Georg | Method and device for braking road vehicles with air suspension and indirect air brakes |
| DE1273346B (en) * | 1961-07-22 | 1968-07-18 | Bosch Gmbh Robert | Brake force regulator for vehicles |
| DE1204089B (en) * | 1962-02-02 | 1965-10-28 | Bosch Gmbh Robert | Pressure regulator for pressure medium brake systems of motor vehicles |
| FR1326434A (en) * | 1962-03-14 | 1963-05-10 | Dba Sa | Brake distributor |
| US3712684A (en) * | 1970-02-11 | 1973-01-23 | Fiat Spa | Hydraulic brake system for vehicles |
| DE2849879C2 (en) * | 1978-11-17 | 1985-03-14 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Load-dependent control of brake force regulators |
| DE2917073C2 (en) * | 1979-04-27 | 1983-12-29 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Load-dependent control of brake force regulators |
| IT1184048B (en) * | 1985-12-27 | 1987-10-22 | Magneti Marelli Spa | BRAKING SYSTEM FOR MOTOR VEHICLES EQUIPPED WITH SELF-LEVELING SUSPENSIONS WITH AIR SPRINGS |
| SE8902054D0 (en) * | 1989-06-06 | 1989-06-06 | Sab Nife Ab | AN ACTUATOR FOR DELIVERING A VARIABLE MECHANICAL FORCE |
-
1957
- 1957-07-08 DE DEW21462A patent/DE1052441B/en active Pending
-
1958
- 1958-03-08 GB GB751658A patent/GB848523A/en not_active Expired
- 1958-07-07 CH CH359153D patent/CH359153A/en unknown
-
1959
- 1959-04-14 CH CH351153D patent/CH351153A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH351153A (en) | 1960-12-31 |
| DE1052441B (en) | 1959-03-12 |
| CH359153A (en) | 1961-12-31 |
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