Reading and lifting device for a control machine
US4385646A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1981 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Feb 23, 2001 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03C3/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A reading and lifting device has a force amplifying bar which can be reciprocated vertically and is driven positively, and a reading needle is slidably supported therein. A pattern card with nonperforated and perforated points is provided below the force amplifying bar. When the needle hits a nonperforated point, the needle is moved back into the force amplifying bar. In one embodiment, the needle slides with its head on a surface which effects a swivelling of a lock member. Through this, an end of the lock member comes to lie in front of an offset portion of a control arm. The force amplifying bar during its downward movement then carries the control arm along against the force of a spring. The device facilitates the sensitive reading of a pattern card and the forceful passing on of the control information read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.