US2002314A - Method and apparatus for producing curled or crimped glass wool - Google Patents

Description

May 21, 1935 PQ o. E. FRIEDRICH 2,002,314

METHOD AND APPARATUS FOR PRODUCING'CURVLED 0R CRIMPED GLASS WOOL Filed Jan. 26, 1934 ,nieuwe May 21, 193s UNITED 4STATES METHOD AND APPARATUS FOR PRODUC- lNG CURLED OB. CRDIPED GLASS WOOL Paul o. E. Friedrich, Millville, N. J., assignmu firm Friedrich & Dimmock, New York, N. Y., a. firm composed of Paul 0. E. Friedrich and Frank L. Dimmock Application January 26,

Claims.

This invention relates to a method and apparatus for producing curled or crimped glass wool and has for an object to provide an improved method and apparatus for taking a iiat sheet of 5 glass thread and permanently curling, crimping a plurality of permanently waved, curled or4 crimped strands of glass wool.

A further object of this invention is to provide an apparatus for permanently waving a fiat-sheet of glass thread and an adjustable cutting means for dividing the flat sheet into a plurality of strands just as it is being fed through the curling, crimping or waving means.

With the foregoing and other objects in view, as will hereinafter become apparent, this invention comprises the constructions, combinations and arrangements of parts hereinafter set forth, disclosed and shown on the accompanying drawing. In the drawing,

Figure 1 is a front view of the invention,

Figure 2 is a rear view of the invention. and

Figure 3 is avsectional v'iew taken on line 3-3 of Figure 2.

There is shown at I0 the apparatus constituting this invention, the apparatus I0 being mounted or supported on any suitable space II.

'I'he apparatus Ill comprises a pair of supporting frame members I2 and I3 secured to the base Il as by bolts I5, and secured to each other by a pair of rods I6 and I1. A pair of interweaved corrugating rolls I8 and I9, mounted on shafts 29 and 2| are supported in interweaving contact one above the other by means of suitable bearings 22 extending through the frame I2 and I3. Gear wheels 23 and 24 keyed onthe shafts 20 and 2| are meshed with each other so as to insure the same rate of rotation of both rolls I8 and I9, it being observed that the gear wheels 23 are provided with the same number of teeth as the roll I8 is provided with corrugations, and likewise that gear wheels 24 are provided with the same number of teeth as there are corrugations on the roll I9, thus insuring that the corrugations on the rolls I8 and I9 will always properly interweave with each other.

In order to provide rotationl of the rolls I8 and I9 one of the shafts, as for instance the lower shaft 20 is extended at one side and provided with a grooved wheel 25, which is rotated by a belt 26 from any suitable source of power. Suitable means for heating the rolls I8 and I9 are provided and preferably consists of a plurality of gas jets 21and 28 placed in gas pipes 29 and 39 1934, Serial No. 708,529

supported by the frame members I2 and I3, it being observed that the gas jets 21 are placed below and closely adjacent the lower corrugating roll I8, and that gas jets 28 are placed above and closely adjacent the upper corrugating roll I9. The ames from the gas jets 21 and 28 are thus in a position to heat the corrugating rolls I8 and I9 while the same are in operation.

A table 3| is provided for feeding a at sheet of 'glass thread through the corrugating rolls I8 and I9, one edge of the table 3| terminating closely adjacent the interweaving linesof contact between the rolls I8 and I9. The table 3| is supported on the frame members I2 and I3 by means of a pair of angulars 32 on the upper rod I1 and apair of braces 33 on the lower rod I6. A rod 35 triangular in' cross section is supported on the frame members I2 and I3 below the table 3| and adjacent the edge 34 nearer the corrugating rolls I8 and I9.

One face of the rod 35 is provided with a plurality of short knife blades 36 and the table 3| is provided with a corresponding plurality of slots 31. The end of the rod 35 is provided with a lever 38. Manual movement of the lever 38 to the position 38' moves the knife blades 36 through the slots 31 to the position 36', thereby dividing f the flat sheet of glass thread -40 into a plurality of individual strands just as the sheet 40 is about to be fed in between the corrugating rolls I8 and I9. I

The method of operation is as follows:

Flat sheets of glass thread 4I! of predetermined lengths are placed on the table 3|. The lever 38 is placed in the position 38 thereby bringing the knife blades 36 through the slots 31 to the position 31 and dividing the flat sheet of glass thread 40 into a plurality of individual strands, the width of the individuall strands being determined by the spacing between the blades 36 and the slots 31.v

The individual strands, each strand consisting of a group of threads, are then fed through the interweaving lines of contact between the rolls I8 and I 9, the gas jets 21 and 28 having been lighted previously so as to bring the rolls I8 and I9 to the desired temperature and to maintain them at this desired temperature. As the strands pass between the rolls I8 and I9, the corrugations on the rolls I8 and I9 press alternately on opposite sides of the strands, and these corrugations being heated they momentarily soften the threads of the individual strands, which immediately reharden again so as to permanently retain the curved, crimped or curled shape as shown at 42..

V crimped glass wool, comprising a pair of inter.

Thus `the apparatus and method just described takes a at sheet of glass thread and produces a plurality of permanently waved, curled, crimped or corrugated individual strands of glass wool.'

The novel features and the operation of this device will be apparent from the foregoing description. While the device has been shown and the structure described in detail, it is obvious that this is not to be considered limited to the exact form disclosed and that (any changes may `be made therein within the scope of what is claimed Without departing from the spirit of the invention.

Having thus set forth and disclosed the nature of this invention, what is claimed is:

-1. In a method of producing curled or crimped strands of glass wool, the steps of longitudinally dividing a flat sheet of glass wool into a plurality of strands, and of imparting a permanent wave formation to the divided strands.V

2. A method of producing curled or crimped strands of glass wool, consisting in simultane ously dividing a at sheet of glass thread into a plurality of strands longitudinally of the threads, corrugating the divided strands simultaneously by applying pressure alternately to opposite sides of the strands, and simultaneously applying heat tovsaid divided strands Aas the pressure is being,

applied whereby the divided individual strands will retain a permanent wave formation.

3. An apparatus for producing` curled or weaved corrugated rolls, means for rotating said corrugated rolls, means for heating saidcorru gating rolls as said rolls are being rotated, a frame for supportingl said corrugating rolls. said heating means and said rotating means, a table` for feeding a flat sheet of glass thread through said corrugating roll, one edge ofA said table being adjacent lthe interweaving lines of contact between said roll, said table being supported on` said frame, and means cooperating with said table adjacent and preceding said interweaving lines of contact, dividing the at sheet of glass thread into a plurality of strands.

aooasm 4. An appamtls for producing curled or crimped glass wool, comprising a pair of interweaved corrugated rolls, means for rotating said corrugated rolls, means for heating said corrugating rolls as said rolls are being rotated; a frame for supporting said corrugating rolls, said heating 4means and said rotating means, a table for feeding a flatsheet of glass thread through said corrugating roll, one edge of said table being adjacent the interweaving lines of contact between said roll, said ltable being supported on said frame, means cooperating with said table adjacent and preceding said interweaving lines of contact, dividingthe flat sheet of glass thread into a plurality of strands, said means compris-A ing a rod supported on said frame, a plurality of longitudinal slots extending through said table,v a. plurality of knife blades on said rods, and means for adjusting said rods to cause said knife blades to extend through saidslots.

5. An apparatus for producing curled or crimped glass wool, comprising a pair of interweaved corrugated rolls, means for rotating said vcorrugated rolls, means for heating said corrugating-rolls as said rolls are being rotated, a frame for supporting said corrugating rolls, said heating means and said rotating means, a table for feeding a fiat'sheet vof glass thread through said corrugating roll, one edge of said table being adjacent the interweaving lines of contact between said roll, said table being supported on said frame, means cooperating with said table adjacent and preceding. said interweaving vlines f contact, dividing the fiat sheet of glass thread -into a plurality of strands, said means comprising a rod supported on said frame, a plurality of longitudinal slots extending through said table, a plurality of knife blades on said rods, and means for adjusting said rods to cause said knife blades to extend through said slots, said -xneans comprising a lever secured 'to said rod exterior of said frame.

PAUL O. E, FRIEDRICH.

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