Apparatus for making filter frames

Claim 1

An apparatus for the formation of rectangular frames for filters from a reel of framestock wherein sections of framestock are cut, notched and fed through the apparatus without stopping comprising: a. an elongated frame; b. a pair of opposing infeed rollers mounted rotationally on said frame which advance a continuous strip of framestock into the apparatus c. a series of guide rails mounted lengthwise on said frame to maintain a proper position of the framestock; d. a pair of engageable opposing pinch-score rollers slidingly mounted to the frame downstream to said infeed rollers through which the framestock passes which pinch and score the framestock when engaged; e. means for adjusting the location of the pinch-score rollers relative to the width of the framestock, said means mounted on the frame and connected to the pinch-score rollers; f. first means for cutting the framestock to a predetermined length, said means mounted downstream to the pinch-score rollers; g. second means for cutting three notches in the framestock at predetermined positions along the length of the framestock, said means mounted downstream to first cutting means; h. a second set of rotationally mounted opposing outlet rollers mounted on said frame downstream to second cutting means through which the framestock passes and is pre-folded; i. a third set of rotationally mounted opposing fold rollers mounted on the frame downstream to cutting means through which the pre-folded framestock passes; j. means for adjusting the position of the second fold rollers relative to the width of the framestock; k. a discharge surface mounted to the frame on the end opposite the feeding means onto which the framestock, notched, folded and cut to length is discharged; l. means for supplying power to the apparatus mounted on a said frame; and m. means for controlling the operation of cutting means g and f to set the position of the respective notches along the length of framestock and to set the length of each frame, respectively.

Claim 2

An apparatus for the formation of rectangular frames for filters from a reel of framestock wherein sections of framestock are cut, notched and fed through the apparatus without stopping comprising: a. an elongated frame; b. a pair of opposing infeed rollers mounted rotationally on said frame which advance a continuous strip of framestock into the apparatus c. a series of guide rails mounted lengthwise on said frame to maintain a proper position of the framestock; d. a pair of engageable opposing pinch-score rollers slidingly mounted to the frame downstream to said infeed rollers through which the framestock passes which pinch and score the framestock when engaged; e. means for adjusting the location of the pinch-score rollers relative to the width of the framestock, said means mounted on the frame and connected to the pinch-score rollers; f. first means for cutting the framestock to a predetermined length, said means mounted downstream to the pinch-score rollers; g. second means for cutting three notches in the framestock at predetermined positions along the length of the framestock, said means mounted downstream to first cutting means; h. a second set of rotationally mounted opposing outlet rollers mounted on said frame downstream to second cutting means through which the framestock passes and is pre-folded; i. a third set of rotationally mounted opposing fold rollers mounted on the frame downstream to cutting means through which the pre-folded framestock passes; j. means for adjusting the position of the second fold rollers relative to the width of the framestock; k. a discharge surface mounted to the frame on the end opposite the feeding means onto which the framestock, notched, folded and cut to length is discharged; l. means for supplying power to the apparatus mounted on a said frame; and m. means for controlling the operation of cutting means g and f to set the position of the respective notches along the length of framestock and to set the length of each frame, respectively.