GB427774A - Improvements in open shed dobby looms - Google Patents
Improvements in open shed dobby loomsInfo
- Publication number
- GB427774A GB427774A GB27197/34A GB2719734A GB427774A GB 427774 A GB427774 A GB 427774A GB 27197/34 A GB27197/34 A GB 27197/34A GB 2719734 A GB2719734 A GB 2719734A GB 427774 A GB427774 A GB 427774A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hook
- lever
- knife
- moved
- shed
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
- C22C35/005—Master alloys for iron or steel based on iron, e.g. ferro-alloys
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C1/00—Dobbies
- D03C1/06—Double-lift dobbies, i.e. dobbies in which separate draw-knives or equivalent operate on alternate picks
-
- 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
- D03C2700/0133—Programme-controlled heald frame movement with mechanical transmission
- D03C2700/0138—Programme-controlled heald frame movement with mechanical transmission using hooks or lifters
- D03C2700/0155—Double-lift mechanisms
- D03C2700/0166—Double-lift mechanisms of positively-driven type
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
427,774. Loom dobbies. GROSSENHAINER WEBSTUHL-UND MASCHINENFABRIK AKT.-GES., Grossenhain, Saxony, Germany. Sept. 21, 1934, No. 27197. Convention date, Sept. 29, 1933. [Class 142 (i)] In order that the double - lift principle may be applied to an open-shed positive shedding dobby, means is provided for moving the harness in the lower shed into an end position defined by stops, and holding it there until the shuttle has been picked. The T-lever is connected to upper linked draw bars 11, 16 and lower linked draw bars 12, 19, each bar making a to-and-fro movement for each change of shed. When a bar 16, or 19 moves to the right, it presses the lever 8 against a stop 33 or 33<1>. In order that the lever 8 may be moved against both stops for the lower shed position, additional knives 37, 42 adapted to engage upper projections on the hooks 9, 10 are each moved to the right by link and lever mechanism when a knife 16 or 19 moves to the left. Each hook is held in the raised position irrespective of whether the needle 26 is raised or lowered until the knife 11, or 12 for operating the other hook has moved to the left. As shown, both hooks 9, 10 are raised, the hook 9 being supported by a support 43 pivoted at 46 and linked to a lever 49<11> adapted to be moved to the left by the knife 12 to free the hook 9, while the hook 10 has been already freed by a similar device controlled by the knife 11. In order to avoid heavy strokes, the lines of hook lugs 91, 101 are arranged at an angle to the draw bars 11, 12 so that the healds are accelerated in succession.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE427774X | 1911-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB427774A true GB427774A (en) | 1935-04-30 |
Family
ID=6477358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27197/34A Expired GB427774A (en) | 1933-09-29 | 1934-09-21 | Improvements in open shed dobby looms |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR427774A (en) |
GB (1) | GB427774A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2856966A (en) * | 1953-04-27 | 1958-10-21 | Crompton & Knowles Loom Works | Pattern mechanism for dobby looms |
US2976891A (en) * | 1957-08-22 | 1961-03-28 | Staubli Geb & Co | Dobbies |
US3057379A (en) * | 1957-07-27 | 1962-10-09 | Staubli Geb & Co | Dobbies |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1097950A (en) * | 1977-02-14 | 1981-03-24 | Donald O. Buker | Vacuum smelting process for producing ferrotungsten |
-
1911
- 1911-03-27 FR FR427774D patent/FR427774A/en not_active Expired
-
1934
- 1934-09-21 GB GB27197/34A patent/GB427774A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2856966A (en) * | 1953-04-27 | 1958-10-21 | Crompton & Knowles Loom Works | Pattern mechanism for dobby looms |
US3057379A (en) * | 1957-07-27 | 1962-10-09 | Staubli Geb & Co | Dobbies |
US2976891A (en) * | 1957-08-22 | 1961-03-28 | Staubli Geb & Co | Dobbies |
Also Published As
Publication number | Publication date |
---|---|
FR427774A (en) | 1911-08-12 |
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