G - Physics – 03 – B
Patent
G - Physics
03
B
33/10, 88/51
G03B 21/14 (2006.01) A41H 3/00 (2006.01)
Patent
CA 1096212
ABSTRACT OF THE DISCLOSURE As textile fabric is spread from a roll onto a cutting table in stacked layers, the cutting pattern is selectively projected by the apparatus of the invention onto the unrolled fabric wherever a fabric flaw is known to exist to enable the operator to determine, prior to attaching a corresponding paper pattern to the spread fabric, whether or not the flaw will otherwise be present in an area to be cut out according to the pattern. A film of a reduced scale image of the pattern to be cut out is provided together with a projector for projecting portions of the film pattern onto selected portions of the fabric. An x-y carriage mounting for the projector enables the projector to be movable over the length and width of the fabric spread on the planar surface. Film indexing means selectively advance the film lengthwise through the projector in correspondence with the projector's position along the length of spread fabric. A gear and slide assembly interconnects the film and projector relative to the x-y carriage so that as the projector and film are moved across the width of the fabric in one direction and at a first velocity the gear assembly moves the projector relative to the film in the opposite direction and at a second velocity which has the same ratio to the first velocity as the scale of the film image pattern has to the actual size pattern; with the resulting effect being that the portions of the pattern on the film which are projected onto the fabric appear to the operator to have a fixed position relative to the fabric.
299169
Huff Joe T.
Johnson Gerald L.
Sanders Weldon A.
Macrae & Co.
Strauss (levi) & Co.
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