GB906983A - Improvements in or relating to highspeed dobby machines - Google Patents
Improvements in or relating to highspeed dobby machinesInfo
- Publication number
- GB906983A GB906983A GB4027358A GB4027358A GB906983A GB 906983 A GB906983 A GB 906983A GB 4027358 A GB4027358 A GB 4027358A GB 4027358 A GB4027358 A GB 4027358A GB 906983 A GB906983 A GB 906983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- levers
- press
- trip
- hooks
- operated
- 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
- D03C1/06—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
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Credit Cards Or The Like (AREA)
Abstract
906,983. Dobbies. SDRUZENI PODNIKU TEXTILNIHO STROJIRENSTVI. Dec. 15, 1958 [Dec. 14, 1957], No. 40273/58. Class 142 (2). In a double-lift positive dobby, a roller 17 revolving round a shaft 18 displaces press levers 14 to disengage lifting hooks 21 from the draw knife 22 that has just completed its return stroke. When the roller 17 has moved past the press levers, the hooks that are to be operated on the next stroke are pulled on to the knife by springs 29, the press levers being moved clear of the hooks by springs 20. If a hook is not to be operated, a buffer 12 controlled by the pattern mechanism prevents movement of the press lever 14, whereby the hook is kept in engagement with a fixed abutment 23. The buffers 12 are carried by leaf springs 13, and can be pushed out of the path of the press levers 14 by needles 11 acted on by trip levers 7. Comb-like cross-bars 32 turn the trip levers 7 anticlockwise, and a bar 30 lifts reading needles 4a carried by feeler levers 4 out of the pattern card 3, causing the ends 4b of the levers to lock the trip levers 7 as shown ; if a reading needle enters a hole in the card when the bar 30 descends, the associated trip lever is released for operation by its spring 9. The lifting hooks 21 are positively operated on the return strokes of the draw knives 22 by comb-like bars 24 moving in unison with the knives and acting on the ends of the balance beams 25. The mechanism enclosed by the chain line C, including the press levers 14, can be lifted out of the machine as a unit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS485257 | 1957-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB906983A true GB906983A (en) | 1962-09-26 |
Family
ID=5392177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4027358A Expired GB906983A (en) | 1957-12-14 | 1958-12-15 | Improvements in or relating to highspeed dobby machines |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH370026A (en) |
| GB (1) | GB906983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2162209A (en) * | 1984-06-11 | 1986-01-29 | Murata Machinery Ltd | Reading device for dobbys |
-
1958
- 1958-12-12 CH CH6726558A patent/CH370026A/en unknown
- 1958-12-15 GB GB4027358A patent/GB906983A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2162209A (en) * | 1984-06-11 | 1986-01-29 | Murata Machinery Ltd | Reading device for dobbys |
Also Published As
| Publication number | Publication date |
|---|---|
| CH370026A (en) | 1963-06-15 |
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