US1844612A

US1844612A - Chenille cutting apparatus

Info

Publication number: US1844612A
Application number: US543042A
Authority: US
Inventors: Jr David H Stroud
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-06-09
Filing date: 1931-06-09
Publication date: 1932-02-09
Anticipated expiration: 1949-02-09

Description

Feb. 9, 1932.

D. H. STROUD, JR

CHENILLE CUTTING APPARATUS Filed Jun'e 9, 1931 2 Sheets-Sheeb 1 WWM/ NNI

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Feb. 9, 1932. D. H. sTRoUD, .1R 1,844,612

GHENILLE CUTTING APPARATUS Filed June 9, 1931 2 Sheets-Sheet 2 F1a 1L BY M ATTORNEYS Patented Feb. 9, 1932 PATENT OFFICE DAVID H. STROUD, JR., OI HAVERFORD, PENNSYLVANIA GHENILLE CUTTING APPARATUS Application ined Junee,

This invention relates to machines for cut-- ting Woven chenille fabric between adjacent lines of its binder wefts, thereby to divide the fabric into individual chenille strands inl tended to be used, in turn, as wefts incident to weaving of pile fabrics such as velvets or carpets, with the out yarn ends of the chenille constituting the surface tufts.

More particularly, my invention has to do with the production of chenille wherein the tuft ends extend only to one side of the binder Warps, as distinguished from the more common V or doubled tuft chenille Where the tuft ends project to equal distances at opposite sides of the binder warps.

With ordinary cutting machines, great difficulty has been experienced in producing single tuft end chenille, due to lateral shifting of the fabric during cutting, with resultant production of chenille strands wherein the tuft ends varied considerably in length.`

Very often, also, the chenille strands were completely severed as a consequence of fouling of the binder Warps of the fabric by the cutting knives of the machines. The latter contingency is especially serious in connection with the cutting of fabric in which the weft yarns are of different colors and definitely arranged in accordance with a preconceived design which is to characterize the pile fabrics subsequently woven with the chenille.

`My invention is directed toward overcoming the above recited drawbacks of previous practice in this art, that is to say: it has for its aim the provision of a novel form of bed over which the chenille fabric is drawn for presentation to the severing instrumentalities of the cutting machine, and whereby the chenille fabric is absolutely prevented from shifting laterally through definite guidance of its binder warps relative to the cutting instrumentalities, so that a product is assured wherein the single tuft ends consistently and uniformly project to one side only of the said binder warps. i

In the attacheddrawings, FigxI is a longitudinal sectional view, more or less diagrammatically represented, o-f a chenille cutting i931. Serial No. 543,042.

machine embodying the present improvements. i

F ig. II is a fragmentary illustration `on a larger scale viewed as indicated by the arrows II-II in Fig.` I.

Fig. III is a. detail sectional view, drawn to a still larger scale, taken as indicated by the arrows III-III in Fig. I; and,

Fig. IV is a view showing how the chenille fabric is cut by the machine to produce the single tuft end strands.

Referring in greater detail first to F ig. I of these illustrations, the numeral 10 designates the beam containing the supply of the chenille fabric C which is to be cut, and l1,

thetake-up beam on which V,the cut strands S of the chenille are collected, the latter beam resting by gravity on a constantly rotating drive roller l2. The rotary cutter 13 of the machine isdisposed at an elevation above and in a vertical plane substantially midway between the beams l() andll, and, after customary practice, provided with a series of cutting blades 14 which are secured in individual holders l5 capable of spacial adjustment along the cylinderl 17 in longitudinal slots 16 of the latter. Incident to passage from the supply beam l0, the chenille fabric C is directed over a stationary cross bar 18, and then under a positionally-fixed freelyrevolving roller 19 enroute to the bed 2() with which the present invention is more especially concerned, and by which the chenille fabric C is presentedV to the rotary cutter 13. After leaving the bed 20, Athe cut strands S of the chenille are directed over another stationary spreader bar 21, enroute to the take-up beam l1 aforementioned.

rlhe bed 20, it will be observed from Fig. I, is made up of two

cylindric bars

22, 23 which are of different diameters, the smaller one being cut out or gouged longitudinally as at 24, to fit the curvature of the larger. These

component bars

22, 23 of the bed 2O are permanently secured togetherat their ends, as shown in Fig.` II, by straps 25 forced or sweate'd on, and jointly afford a bedwhich is substantially elliptic in cross section. Beyond the straps 25, the larger bar 22 of the bed 20 is provided with diametrically reduced eX- ica tensions 26 which are adapted to be rigidly clamped with capacity for rotative adjustment of said bed, in the side frames (not shown) of the machine. From Figs. II and III it will be observed that the

bars

22, 23 are respectively fashioned with uniformlyspaced angular circumferential ridges or

corrugations

27 and 28, and assembled with the said ridges in exact registry. Deep grooves 29 in the horizontal circumferential surfaces 30 defining the bases of the depressions between the corrugations 27 of the larger bar 22 are penetrated by the blades 14 of the rotary cutter 13; and, immediately adjacent the grooves 29, the said bar 22 is provided with circumferential recesses 31 which have registering counterparts or continuations 32 in the smaller bar 23.

The operation of the machine is as follows As the lengthwise tension is induced in the binder warps B of the chenille fabric C (Figs. III and IV) under pull of the takeup beam 11, said fabric is obliged to adapt itself to the profile configuration of the bed 20 as shown in Fig. III. As a consequence, the binder warps B are caused to seek the grooves 31 of the bed 20 in the intervals between the corrugations 27, to be thereby definitely spaced and guided with respect to the blades 14 of the rotary cutter 13, while the fabric C is at the same time maintained in transverse tension with the segments of its cross threads or wefts W between the binder warps B snugly overlying the

corrugations

27, 28 of the bed 20. Due to definite guidance of the binder warps B, the fabric C is prevented from lateral slippage or displacement in respect to the blades 14 of the cutter 13 so th at the cross threads or wefts IV of the fabric C will all be cut uniformly contiguous to the said binder warps, with resultant production of single tuft chenille in which the cut ends E are all consistently of the same length. It is to be particularly observed from Fig. I th at the elliptic cross section of the bed 2O facilitates the troughing of the fabric C with obviation of strains such as would be apt to cause distortion.

Having thus described my invention, I claim:

1. In a cutting machine of the character described, a cutter with a series of laterallyspaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and cooperating ymeans to definitely guide andcurvilinearlytension the segments of the wefts between the binder warps of the fabric incident to presentati on of the fabric to the cutter.

2. In a cutting machineV of the character described, a cutter with a series of laterallyspaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and cooperative means with circumferential ridges to troughingly tenion the segments of the wefts of the fabric between its binder warps and associated recessions to definitely guide the individual binder warps incident to presentation of the fabric to the cutter.

3. In a cutting machine of the character described, a cutter with a series of laterallyspaced blades adapted todivide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a transverse bed over which the fabric is passed for presentation to the cutter, the said bed having laterally spaced recessions for definitely guiding the binder warps of the fabric in relation to the blades of the cutter.

4. In a cutting machine of the character described, a cutter with a series of laterally spaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a transverse bed over which the fabric is passed for presentation to the cutter, the said bed having grooves for penetration individually by the cutter blades, and recessions immediately adjacent the grooves for definitely guiding the binder warps of the fabric in respect to the cutter knives, thereby to accurately determine cutting of the weft threads of the fabric closely continuous to the sai-d binder warps.

5. In a cutting machine of the character described, a cutter with a series of laterally spaced blades, adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a bed over which the fabric is passed for presentation to the cutter, the said bed having laterally spaced corrugations to tension the wefts of the fabric in the intervals between its binder warps and recessions in the hollows between the corrugations for definitely guiding the binder warps of the fabric in relation to the cutter blades.

6. In a cutting machine of the character described, a cutter with a series of laterally spaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a bed over which the fabric is passed for presentation to the cutter, the said bed having laterally spaced corrugations to tension the wefts of the fabric in the intervals between its binder warps, grooves in the hollows intervening the corrugations for penetration by the blades of the cutter. and recessions immediately adjacent the aforesaid grooves for definitely guiding the binder warps of the fabric in relation to the cutter blades thereby to accurately determine cutting of the wefts closely contiguous to the binder warps.

7. In a cutting machine of the character dcscribed, a cutter with a series of laterally spaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a bed over which the fabric is passed for presentation to the cutter consisting of a pair of cylindric bars, one gouged longitudinally to fit the curvature of the other, both the said bars having aligned laterally-spaced recessions to definitely guide the binder Warps of the fabric, and one of them provided with grooves intermediate its depressions for penetration by the cutter blades.

8. In a cutting machine of the character described, a cutter with a series of laterally spaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a bed over which the fabric is passed for presentation to the cutter consisting of a pair of cylindric bars, one gouged longitudinally to lit the curvature of the other, both the said bars having laterally spaced corrugations to tension the wefts of the fabric between its binder warps and recessions in the hollows between the corrugations to definitely guide the binder Warps inrespect to the cutter blades.

9. In a cutting machine of the character l described, a cutter with a series of laterally spaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a bed over which the fabric is passed for presentation to the cutter consisting of a pair of cylindric bars, one gouged longitudinally to fit the curvature of the other, both the said bars having laterally spaced corrugations to tension the Wefts of the fabric between its binder Warps and recessions in the hollows between the cor-` rugations to definitely guide the binder warps in respect to the cutter blades, and one of the bars having grooves immediately adjacent its recessions for penetration by the cutter blades.

10. In a cutting machine of the character described, a cutter with a series of laterallyspaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a transverse bed of substantially elliptic cross section over which the fabric is passed for presentation to the cutter, the said bed having laterally-spaced corrugations to tension the Wefts of the fabric in the intervals between its binder Warps, and recessione in the hollows intervening the corrugations for definitely guiding the said binder warps.

ll. In a cutting machine of the character described, a cutter with a series of laterallyspaced blades adapted to divide chenille fabric longitudinally into a multiplicity of individual chenille strands; and a transverse bed of substantially elliptic cross section over which the fabric is passed for presentation to the cutter, the said bed having laterallyspaced corrugations to tension the wefts of the fabric in the intervals between its binder warps, recessions in the hollows intervening `the corrugations for definitely guiding the binder warps, and grooves immediately adj acent the said recessions for penetration by lOO