Sewing – Work manipulating – Guides
Patent
1977-06-01
1978-11-21
Nerbun, Peter
Sewing
Work manipulating
Guides
D05B 3510
Patent
active
041260970
ABSTRACT:
A sewing machine for the production of edge-parallel seams on layers of sewing material which includes a reciprocating needle which is movable through a stitch-forming station and a material feed for advancing the materials in a feeding direction through the station. The guide means for the material comprises a plurality of plates arranged in spaced vertical relationship one above the other and defining at least two separate material feed paths between adjacent plates. Each feed path has its own end guide or rule for the edge of the material which extends along a line extending laterally in a feeding direction through the needle axis. The construction includes an adjustable pressure member and a counterplate for applying and releasing pressure from materials being fed which is located at a spaced location from the end guides or rulers. One of the end guides comprises a slide having an edge defining the guide which is movable by sensing means which senses the end of one or more of the materials and positions the guide accordingly.
REFERENCES:
patent: 3182619 (1965-05-01), Sally
patent: 3782310 (1974-01-01), Stockel
patent: 3905316 (1975-09-01), Mall
patent: 3924550 (1975-12-01), Boser et al.
Nerbun Peter
Pfaff Industriemaschinen GmbH
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