Apparatus for depositing a web of material on a table
US4493460A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1982 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Mar 29, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/902
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Material, such as fabric, is unwound from a bolt (7) in a magazine (6) and deposited on a table (1). The magazine (6) comprises a chain (8) having suspension elements (11, FIG. 2) for receiving spindles (10) of the bolts (7). The required bolt (7) is locked in an unwinding position and held firmly, but rotatably, by supporting means (14) and retaining means (18), all in the form of ball bearings. The bolt (7) is rotated by a drive element in the form of a friction wheel or a conveyor belt which drivingly engages either the periphery of the bolt (7) or the spindle (10). In FIG. 2, the drive element comprises a friction wheel (24) which is biased by a spring (25) into driving engagement with a further friction wheel (19) mounted on the spindle (10). The apparatus enables the web to be deposited on the table free of tension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.