GB351687A - Method of manufacturing electric blasting fuses - Google Patents
Method of manufacturing electric blasting fusesInfo
- Publication number
- GB351687A GB351687A GB1592430A GB1592430A GB351687A GB 351687 A GB351687 A GB 351687A GB 1592430 A GB1592430 A GB 1592430A GB 1592430 A GB1592430 A GB 1592430A GB 351687 A GB351687 A GB 351687A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- plunger
- tape
- bent
- sheet
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/195—Manufacture
- F42B3/198—Manufacture of electric initiator heads e.g., testing, machines
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Package Frames And Binding Bands (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Wire Processing (AREA)
Abstract
351,687. Blasting detonators. GLÍSSL, K. SCHAFFLER-, 138, Lerchanfelderstrasse, Vienna. May 23, 1930, No. 15924. [Class 9 (i).] An electric blasting fuze, of the kind composed of two flat metal conducting strips which are bridged at one end by a high resistance wire and a priming tip, has a binding clip of sheet metal, insulated on one side, for holding the strips together. The conductors are formed from a metal sheet slotted transversely to form strips 3, as shown in Fig. 1. The blinding clips 5, Fig. 9, are formed from lengths cut from a tape and comprise metal strips 51 with insulation strips 5<2>. Each length of the tape is bent first into a channel section form and is then applied to a pair of strips 3 and subsequently bent into the shape shown in Fig. 9. The marginal edge 1 of the conductor sheet is then cut off leaving free ends 8 to the strips 3 which ends are bent over to form hooks in which is held and soldered an incandescent wire 7. The strips 3 may have enlarged ends 4 which are bent to form channels into which the conducting wires are placed and secured when the marginal edge 2 of the sheet has been removed. The ends 8 are provided with an igniting head in known manner. The clip tape and conductor strips in band form are fed automatically to a machine by rollers 23, Fig. 12, and a feeding finger 24 respectively, the latter engaging perforations 6 in the conductor strip band. The tape 5 is led over an anvil 29 and beneath a plunger 25 and two punches 26, 28. The plunger 25, which is forked, first descends and holds the tape, whereupon the punches 26, 28 descend to sever a desired length from the tape and to bend the same into a channel section. This is retained in its position on the anvil 29 when the punches and plunger are raised by means of an arm 10 (not shown), which is advanced between the forked ends of the plunger. The clip is moved into position over the strip 1 by a slide 11, Fig. 14, and is applied thereto by the resilient arms 12 of a plunger 13, Fig. 15. The conductor strip band with the clips applied to the pairs of strips is then fed in succession to a number of dies and is finally led to a die 20, Fig. 18, arranged below a plunger 19 to complete the attachment of the clips to the conducting strips.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH82502D DE606396C (en) | 1927-04-29 | 1927-04-29 | Process for the production of Brueckengluehzuendern |
GB1592430A GB351687A (en) | 1930-05-23 | 1930-05-23 | Method of manufacturing electric blasting fuses |
FR696232D FR696232A (en) | 1930-05-23 | 1930-05-28 | Manufacturing process of incandescent primers |
BE370751D BE370751A (en) | 1930-05-23 | 1930-06-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1592430A GB351687A (en) | 1930-05-23 | 1930-05-23 | Method of manufacturing electric blasting fuses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB351687A true GB351687A (en) | 1931-07-02 |
Family
ID=10067991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1592430A Expired GB351687A (en) | 1927-04-29 | 1930-05-23 | Method of manufacturing electric blasting fuses |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE370751A (en) |
DE (1) | DE606396C (en) |
FR (1) | FR696232A (en) |
GB (1) | GB351687A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3042777A (en) * | 1958-08-11 | 1962-07-03 | Mc Graw Edison Co | Protectors for electric circuits |
US3689995A (en) * | 1970-08-17 | 1972-09-12 | Lour Knudsen Nordisk Elektrici | Electric fuses |
-
1927
- 1927-04-29 DE DESCH82502D patent/DE606396C/en not_active Expired
-
1930
- 1930-05-23 GB GB1592430A patent/GB351687A/en not_active Expired
- 1930-05-28 FR FR696232D patent/FR696232A/en not_active Expired
- 1930-06-02 BE BE370751D patent/BE370751A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE606396C (en) | 1934-12-01 |
FR696232A (en) | 1930-12-27 |
BE370751A (en) | 1930-07-31 |
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