GB723054A - Improvements in or relating to drawing machines - Google Patents
Improvements in or relating to drawing machinesInfo
- Publication number
- GB723054A GB723054A GB1976652A GB1976652A GB723054A GB 723054 A GB723054 A GB 723054A GB 1976652 A GB1976652 A GB 1976652A GB 1976652 A GB1976652 A GB 1976652A GB 723054 A GB723054 A GB 723054A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- relay
- relays
- machine
- motor
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
- B21C1/12—Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
723,054. Drawing. MARSHALL RICHARDS MACHINE CO., Ltd., and SOMERVILLE, T. B. Aug. 5, 1953 [Aug. 6, 1952], No. 19766/52. Class 83 (4). A drawing machine for wire rods, tubes, &c. has switch means adjustable in position on or adjacent to a rotating member of the machine and controlling the slowing down and stopping of the drawing block in a predetermined position. Mercury switches 7, 8 adjacent to a drawing block 1 and actuated to open circuit position by magnets 5, 6 on the block 1, operate relays 11, 13 controlling the driving motor 3. The switches 7, 8 are brought into circuit by a manual switch 9 or a relay 18 operated automatically when the wire 19 leaves the die 2 as by the break in an electric circuit. When the switch 7 is then opened by the magnet 5 the relay 11 operates to place a resistance 14 across the motor 3 so that it runs slowly. When the, switch 8 is subsequently opened by the magnet 6 the relay 13 disconnects the motor 3 from the supply and connects a dynamic braking resistance 16 across the armature. The relays 11, 13 are mechanically interlocked to ensure operation in the correct sequence and auxiliary contacts maintain the relays in the de-energized position until re-set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1976652A GB723054A (en) | 1952-08-06 | 1952-08-06 | Improvements in or relating to drawing machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1976652A GB723054A (en) | 1952-08-06 | 1952-08-06 | Improvements in or relating to drawing machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB723054A true GB723054A (en) | 1955-02-02 |
Family
ID=10134860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1976652A Expired GB723054A (en) | 1952-08-06 | 1952-08-06 | Improvements in or relating to drawing machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB723054A (en) |
-
1952
- 1952-08-06 GB GB1976652A patent/GB723054A/en not_active Expired
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