GB942474A - Improved double lift dobby - Google Patents
Improved double lift dobbyInfo
- Publication number
- GB942474A GB942474A GB2562060A GB2562060A GB942474A GB 942474 A GB942474 A GB 942474A GB 2562060 A GB2562060 A GB 2562060A GB 2562060 A GB2562060 A GB 2562060A GB 942474 A GB942474 A GB 942474A
- Authority
- GB
- United Kingdom
- Prior art keywords
- needles
- bar
- hooks
- auxiliary
- reading
- 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
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C1/00—Dobbies
- D03C1/14—Features common to dobbies of different types
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C2700/00—Shedding mechanisms
- D03C2700/01—Shedding mechanisms using heald frames
- D03C2700/0127—Programme-controlled heald frame movement
- D03C2700/0177—Devices for levelling the heald frames; Coupling and uncoupling the drive for the heald frames; Devices for holding the shed open
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
942,474. Double lift dobbies. RUTI MACHINERY WORKS Ltd. July 22, 1960 [July 22, 1959], No. 25620/60. Heading D1E. In a reversible double lift dobby having four rows of reading needles, the needles 3, 5 for reading successive odd-numbered picks are suspended from a bar 8, and the needles 4, 6 for reading successive even-numbered picks are suspended from a bar 9. The pattern card 2 is advanced two rows of holes at a time every second pick, the needles being lifted clear by raising both bars 8, 9. The bar 8 descends first, causing the needles 3, 5 to read the pattern for the preceding and succeeding odd picks respectively; auxiliary hooks 3<1>, 5<1> are thereby brought into the paths of auxiliary knives 10, 11. If the loom is running forward, the knife 11 operates the selected hooks 5<1> to rock bell cranks 12 which bring main draw hooks (not shown) into line with one of the main lifting knives. If the loom is being turned backwards, the auxiliary knife 10 makes an operative stroke, whereby the bell cranks 12 are rocked by the selected auxiliary hooks 3<1> to open the preceding shed. The bar 8 then rises and the bar 9 descends, whereupon the reading needles 4, 6 and auxiliary hooks 4<1>, 6<1> similarly act on bell cranks 13 to form the required even-numbered shed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH7615659A CH373717A (en) | 1959-07-22 | 1959-07-22 | Double stroke dobby |
Publications (1)
Publication Number | Publication Date |
---|---|
GB942474A true GB942474A (en) | 1963-11-20 |
Family
ID=4534727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2562060A Expired GB942474A (en) | 1959-07-22 | 1960-07-22 | Improved double lift dobby |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE593219A (en) |
CH (1) | CH373717A (en) |
GB (1) | GB942474A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3277928A (en) * | 1963-05-24 | 1966-10-11 | Johann Kaiser K G Maschinenfab | Pre-needle apparatus for double lift dobby mechanism |
US3390705A (en) * | 1965-02-19 | 1968-07-02 | Rueti Ag Maschf | Dobby |
-
1959
- 1959-07-22 CH CH7615659A patent/CH373717A/en unknown
-
1960
- 1960-07-20 BE BE593219A patent/BE593219A/en unknown
- 1960-07-22 GB GB2562060A patent/GB942474A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3277928A (en) * | 1963-05-24 | 1966-10-11 | Johann Kaiser K G Maschinenfab | Pre-needle apparatus for double lift dobby mechanism |
US3390705A (en) * | 1965-02-19 | 1968-07-02 | Rueti Ag Maschf | Dobby |
Also Published As
Publication number | Publication date |
---|---|
BE593219A (en) | 1960-11-14 |
CH373717A (en) | 1963-11-30 |
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