GB695683A - Improvements in or relating to methods for producing contact springs for electric apparatus - Google Patents
Improvements in or relating to methods for producing contact springs for electric apparatusInfo
- Publication number
- GB695683A GB695683A GB28296/51A GB2829651A GB695683A GB 695683 A GB695683 A GB 695683A GB 28296/51 A GB28296/51 A GB 28296/51A GB 2829651 A GB2829651 A GB 2829651A GB 695683 A GB695683 A GB 695683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- strip
- spring
- punched
- springs
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H63/00—Details of electrically-operated selector switches
- H01H63/02—Contacts; Wipers; Connections thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/06—Making more than one part out of the same blank; Scrapless working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
- H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
- H01H11/042—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion by mechanical deformation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Switches (AREA)
Abstract
695,683. Making contact springs. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 3, 1951 [Dec. 6, 1950], No. 28296/51. Classes 83 (ii) and 83 (iv). Forging; riveting.-Contact springs for electrical apparatus are provided with contact points by feeding a contact strip above a prepunched spring through a punching machine to punch out a contact point and to insert it into the hole in the spring. The contact strip may have a facing of contact metal. In Fig. 1 a spring 15 with pre-punched hole is positioned between a punch 11 and a die 16 with a composite contact strip 13, 14. On depression of the punch a faced contact is punched from the strip and forced into the hole in the strip. The contact is then riveted and shaped. The spring strip 50, Fig. 8, is provided with slots 51 forming attached springs 52 with preformed holes 31, 32, 33, 34. The strip 50 is fed to the left and a bimetallic contact-strip is fed over the holes 34 and the contact points are punched, secured and shaped. The spring is then detached.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE296818X | 1950-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB695683A true GB695683A (en) | 1953-08-12 |
Family
ID=20307350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28296/51A Expired GB695683A (en) | 1950-12-06 | 1951-12-03 | Improvements in or relating to methods for producing contact springs for electric apparatus |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE507607A (en) |
CH (1) | CH296818A (en) |
FR (1) | FR1045991A (en) |
GB (1) | GB695683A (en) |
NL (1) | NL81589C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263306A (en) * | 1959-05-27 | 1966-08-02 | Controls Co Of America | Method of making a snap action switch |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR8101754A (en) * | 1980-03-27 | 1981-09-29 | Du Pont | PROCESS FOR THE PRODUCTION OF ELECTRICAL TERMINALS CONTAINING A THIN GOLD LAYER IN THE CONTACT AREA |
FR2488037A1 (en) * | 1980-08-01 | 1982-02-05 | Legrand Sa | Contact blade mfg. process for leaf switch - uses square cross=section rivets cut from copper strip with silver edges for placing in holes of continuous leaf band |
-
0
- NL NL81589D patent/NL81589C/xx active
- BE BE507607D patent/BE507607A/xx unknown
-
1951
- 1951-11-29 FR FR1045991D patent/FR1045991A/en not_active Expired
- 1951-12-03 CH CH296818D patent/CH296818A/en unknown
- 1951-12-03 GB GB28296/51A patent/GB695683A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263306A (en) * | 1959-05-27 | 1966-08-02 | Controls Co Of America | Method of making a snap action switch |
Also Published As
Publication number | Publication date |
---|---|
CH296818A (en) | 1954-02-28 |
FR1045991A (en) | 1953-12-02 |
NL81589C (en) | |
BE507607A (en) |
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