US2059404A

US2059404A - Apparatus for making reenforced binding material

Info

Publication number: US2059404A
Application number: US736503A
Authority: US
Inventors: David E Skedgell
Original assignee: Millville Manufacturing Co
Current assignee: Millville Manufacturing Co
Priority date: 1934-07-23
Filing date: 1934-07-23
Publication date: 1936-11-03
Anticipated expiration: 1953-11-03

Description

Nov. 3,1936. D. E. SKEDGELL 2,059,404

APPARATUS FOR MAKING REENFORCED BINDING MATERIAL Original Filed July 25, 1934 2 Sheets-Sheet l 11v VENTOR: David 21 filmdgalb,

TTORNEYS.

Nov. 3, 1936. 2,059,404

APPARATUS FOR MAKING REENFORCED BINDING MATERIAL D. E. SKEDGELL 2 Sheets-Sheet 2 Original Filed July 23, 1934 MN SW INVENTOR: David E. Shad/gall fl/ TORNEYS. I

WITNESiESg I flgimm Patented Nov. 3, 1936 UNITE STATES APPARATUS FOR MAKING REENFORCED BINDING MATERIAL David E. Skedgell, Millville, N. J assignor to The Millville Manufacturing Company, Millville, N. J a corporation of New Jersey Application July 22, 1934, Serial No. 736,503 Renewed February 29, 1936 10 Claims.

This invention relates to apparatus for making, from strip paper, reenforced binding material adapted to be used in binding packages; sealing cartons, etc.

Considered from the broadest aspect, my invention is directed toward facilitating rapid and economic production of paper binding material either of single or double thickness, reenforced by transverse threads, which in the single thickness material are overlaid upon one face of the paper, and which in the double thickness material are interposed between the two paper strips, a suitable adhesive or cement being employed to permanently incorporate the threads in the binding. 7

The foregoing desideratum I realize, as hereinafter more fully disclosed, through provision of a simple and reliable apparatus wherein a continuous paper strip is rounded to tubular configuration and so maintained for a time during uniform progression thereof in the apparatus; adhesive applied to its outer rounded surface; thread thereupon wrapped about the tubulated strip; and the Wrapped threads subsequently severed where they are crossed over an interval between the contiguous edges of a tubulated strip. In the case of the double thickness material, ,another paper strip synchronously delivered, is pressed into contact with the adhesive coated side of the first strip upon resumption of the latter to its original fiat condition after having received the threads.

Other objects and attendant advantages of this invention will be manifest from the detailed description following of the attached drawings, wherein Fig. I is a view, partly in side elevation andpartly in longitudinal section, of an apparatus for making reenforced binding material, conveniently embodying the present improvements.

Fig. II is a cross sectional view taken as indicated by the arrows II-II in Fig. I, and drawn to a larger scale.

Fig. III is a cross sectional View, likewise on a larger scale, taken as indicated by the arrows III-III in Fig. I, and showing more particularly the means whereby the threads are wrapped about the paper sheet after it has been rounded to tubular form.

Fig. IV is a longitudinal sectional view through the means aforesaid, taken as indicated by the arrows IV--IV in Fig. III.

Figs. V, VI and VII are detail cross sectional views taken as indicated respectively by the arrows V-V, VI-VI and VII-VII in Fig. IV; and

Fig. VIII is a perspective view of a fragment of package binding material such as may be produced with the apparatus of my invention.

As herein delineated, the apparatus comprises a rack I (Fig. I) for rotatively supporting a supply roll 2 of continuous strip paper 3. BY means later on described, the strip 3 is drawn from the roll 2 to travel horizontally in the apparatus in the direction indicated by the arrow in Fig. I, passing first beneath a transverse spreader rod 4. In its advance, the paper strip 3 is rounded to tubular configuration incident to progression through the circular aperture of a ring 5 supported by a standard 5 as shown in Figs. I and II, the rounding of the paper being facilitated by a tapered mandrel l having hooks 8 at its forward end to engage over the spreader rod 4 while itsfull cylindric end extends through the aperture of the ring 5.

The strip 3 after being tubulated, with its side edges upward and spaced by a small interval as at 9 in Figs. II and VII, next traverses a corre-' spondingly configured horizontal guide passage l0 jointly afforded by a hollow cylindric core II and a surrounding coaxial sleeve l2 which is supported in the clamp bearing l3 of a pedestal l4. As shown in Figs. I and II, the core extends beyond both ends of the sleeve, and its aft end terminates in a bevel I5. From Figs. IV and V it will be observed that the core II is secured to the sleeve I2 by screws [6 engaging threaded openings in a longitudinal rib ll on said core which defines a segmental annular cross section for the guide passage of a circumferential extent substantially equal to the width of the paper strip.

Freely rotatable on the sleeve l2 between one face of the bearing E3 of the pedestal l4 and a cap l 8 secured by screw bolts l9 to the right hand end of said sleeve (Fig; I), is a winding head 20. As shown, this winding head 20 is formed with a pulley 2| which is constantly driven in the direction of the arrow in Fig. II by a belt 22, from an electric motor or the like, not illustrated. The cap l8 has an annular hollow 23, which, at the top, communicates with a duct 25 leading longitudinally through the fixed sleeve l2. Connecting into the duct 25 at the left hand end, is a tube or pipe 26 which leads from a storage reservoir 2'! (Fig. I) for liquid adhesive. By means of a gear pump conventionally shown at 28, the liquid adhesive is constantly drawn from the storage reservoir 21 and conducted to the annular hollow 23 of the cap I8 and finds its way from the latter through a pair of spaced radial ports 29 and 30 (Figs. IV and VI) to a relatively narrow circumferential channel 3! formed by an internal counterbore of the inner flange of said cap at the point where the tubulated portion of the strip 3 emerges from the guide passage l0, said channel having a circumferential extent somewhat less than the width of the paper strip 3. As the winding head 20 revolves, the adhesive is evenly smoothed on the outer surface of the rounded tubulated paper strip 3 by means of a brush 32 carried by said head. A guard or cover plate 33 fashioned from sheet metal and secured to the cap ill, by screws 34 bridges the gap or longitudinal interval 9 bee tween the contiguous edges of the tubulated paper strip 3 and slightly overlaps said edges, asshown in Fig. III. This guard or cover plate 33 prevents direct contact of the brush 32 with the portion of the mandrel l l between the spaced strip edges, and moreover confines the spread of the adhesive to the outer face of the strip somewhat short of the edges of the latter.

Individually mounted for free rotation about circumferentially-spaced radial pins 35 on the head 20 are thread spools 36. From these spools 36 the threads T are directed through guide apertures 31 in the pulley 2| to eyes in the ends of a corresponding number of guide fingers 38 projecting laterally at suitably spaced circumferential intervals from the right hand face of said pulley beyond the brush 32. Accordingly, during rotation of the head 20, and as a consequence of attendant forward progression of the paper strip 3, the threads T are spirally wrapped about the tubulated portion of the strip immediately after application of the adhesive as aforesaid.

In -its further travel, the strip 3 passes through a drying chamber 39 which may be heated by a suitable means, not shown, and wherein a shear device 40 severs the wrapped threads Y where they extend crosswise between the spaced edges of the tubulated paper strip. The shear device 40, it will be noted, operates in a longitudinal top slot 4| in the aft end of the core tube H, said slot extending rearward from the region of the brush 32, see Figs. IV and VII. The movable blade 42 of the shear device 40 is actuated through a suitable linkage means 43 from a rotary cam 45 (see Fig. I) on a continuously rotating shaft 46. This shaft 46 may be driven, for example, by a belt connection with the same motor (not illustrated) that serves to drive the winding head.

As the paper strip'leaves the beveled end l5 of the core tube II, it assumes its original fiat form and passes out through a slot 41 in the rear wall of the drying chamber 39, to a guide roll 48. Immediately beyond the guide roll 48 and slightly below the level thereof is a spreader roll 49. From thence the strip 3 passes about a pair of vertically-arranged draw rolls 50, 5i beyond and above which is another pair of draw rolls 52, 53 which are horizontally arranged, and whereat the strip 3 meets with a backing strip 55 which is concurrently drawn at synchronous surface speed from a separate supply roll 56. Enroute to the draw rolls 52, 53 the paper backing strip 55 is coated with liquid adhesive supplied by a pair of applicator rolls 57, 58 whereof the lower one runs in a bath 59 of the adhesive. Above the applicator rolls 51, '58, a doctor roll 65 serves to distribute the adhesive on the backing strip 55 before it reaches the draw rolls 52, 53. Incident to passage through the draw rolls the adhesive side'of the supplemental strip 55 is firmly pressed against the adhesive side of the main strip 3 whereupon the two are passed around a heated drying drum 5|. The finished composite binding strip 62 is finally collected on a beam 63. Suitable gearing (not illustrated) is of course provided in practice to drive the draw rolls 52 and 53, the drying drum GI and the beam 63 at like surface speeds to prevent either stretching or buckling of the material.

For the fabrication of single thickness binding, the process is simply terminated after the strip emerges from the drying chamber, the material being passed from thence directly to the draw rolls 52 and 53, and finally to the collecting beam 63.

If desired or found convenient in practice, the mandrel 1 may be made as an integral part of the core I I without in any way altering the characteristic'operation of the apparatus.

Having thus described my invention, I claim:

1. In apparatus for making reenforced binding material, means for uniformly progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and for maintaining it for a time in tubular form with its side edges separated, by a small interval, said means affording a relatively narrow segmental flow channel around the tubulated sheet of a circumferential extent slightly less than the width of the paper strip; means for conducting liquid adhesive to said fiow channel; means for continuously wrapping thread around the tubulated strip after application of the adhesive; and means for subsequently severing the thread wrappings where they extend across the longitudinal interval between the contiguous edges of the tubulated strip.

2. In apparatus for making reenforced binding material, means for uniformly progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and for maintaining it for a time in tubular form with its side edges separated by a small interval, said means affording, around said tubulated strip at the point of its emergence, a narrow segmental flow channel of a circumferential extent slightly less than the width of the strip; means for conducting liquid adhesive to said flow channel; means for evenly spreading the adhesive; means for continuously wrapping thread around the tubulated strip after application and spreading of the adhesive; and means for subsequently severing the wrapped threads where they extend across the longitudinal interval between the contiguous edges of the tubulated strip.

3. In apparatus for making reenforced binding material, means for progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and for maintaining it for a time in tubular form, comprising a fixed sleeve and an axial core with its ends extending beyond the sleeve, said sleeve and core jointly providing a guide passage of segmental annular cross section and of a circumferential extent substantially equal to the width of the tubulated strip, said sleeve also affording a segmental annular flow channel of somewhat lesser extent than the strip width at the end where the tubulated strip emerges from the guide passage; means for conducting fluid adhesive to the flow channel; means for continuously wrapping reenforcing thread around the tubulated strip after application of the adhesive; and means for subsequently severing the thread wrappings where they extend across the longitudinal interval between the contiguous edges of the tubulated strip.

4. In apparatus for making reenforced binding material, means for progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and for maintaining it for a time in tubular form, comprising a fixed sleeve and an axial core with its ends extending beyond the sleeve, said sleeve and core jointly providing a guide passage of segmental angular cross section and of a circumferential extent substantially equal to the width x of the tubulating strip, said sleeve also affording a segmental annular flow channel of somewhat lesser extent than the strip width at the end where the tubulated strip emerges from the guide passage; means for conducting fluid adhesive to the flow channel; means for evenly spreading the adhesive; means for continuously wrapping thread around the tubulated strip after application and spreading of the adhesive; and means for subsequently severing the wrapped threads where they extend across the longitudinal interval between the contiguous edges of the tubulated strip.

5. In apparatus for making reenforced binding material, means for progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and. for maintaining it for a time in tubular form, comprising a fixed sleeve and an axial core with its ends extending beyond the sleeve, said sleeve and core jointly providing a guide passage of segmental annular cross section and of a circumferential extent substantially equal to the width of the tubulated strip, said sleeve also affording a segmental annular flow channel of somewhat lesser extent than the strip width at the end where the tubulated strip emerges from the guide passage; means for conducting fluid adhesive to the flow channel; means for continuously wrapping reenforcing thread around the tubulated strip after application of the adhesive, including a head revolving on the sleeve, a plurality of thread spools carried by the head, and a corresponding number of guides for directing the threads; and means for subsequently severing the thread wrappings where they extend across the longitudinal interval between the contiguous edges of the tubulated strip.

6. In apparatus for making reenforced binding material, means for progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and for maintaining it fora time in tubular form,

comprising a fixed sleeve and an axial core with its ends: extending beyond the sleeve, said sleeve and core jointly providing a guide passage of segmental annular cross section and of a circumferential extent substantially equal to; the width of the tubulating strip, said sleeve also affording a segmental annular flow channel of somewhat lesser extent at the end Where the tubulated strip emerges from the guide passage; means for conducting fluid adhesive to the flow channel; means for evenly spreading the adhesive and for continuously wrapping reenforcing thread around the tubulated strip after application and spreading of the adhesive, including a spreader brush, a plurality of spools for the individual threads, and guide means beyond the brush for directing the threads; a fixed cover plate lapping the contiguous edges of the tubulated strip in the province of the brush; and means for subsequently severing the thread wrappings where they extend across the longitudinal interval between the contiguous edges of the tubulated strip.

7. In apparatus for making reenforced binding material; means for progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and for maintaining it for a time in tubular form, comprising a fixed sleeve and an axial core with its ends extending beyond the sleeve, said sleeve and core jointly providing a guide passage 01 segmental annular cross section and of a circumferential extent substantially equal to the width of the tubulating strip, said sleeve also afiording a segmental annular flow channel of somewhat lesser extent than the strip width at the end where the tubulated strip emerges from the guide passage; means for continuously wrapping reenforcing thread around the tubulated strip after application of adhesive; and a shear device operating in a longitudinal slot at the aft end of the core member to sever the thread wrappings where they extend across the longitudinal interval between the contiguous edges of the tubulated strip.

8. In apparatus for making reenforced binding material, means for progressing a continuous strip of paper; a mandrel and a ring member cooperating to round the strip longitudinally into tubular form; guide means for maintaining the strip tubulated for a time; means for applying adhesive to the strip while maintained in tubulated form; means for continuously wrapping reenforcing thread about the tubulated strip after application of the adhesive; and means for subsequently severing the thread wrappings where they extend across the longitudinal interval between the contiguous edges of the tubulated strip.

9. In apparatus for making reenforced binding material, means for uniformly progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and for maintaining it for a time in tubular form with its side edges separated by a small interval, said means affording a narrow segmental annular flow channel of a circumferential extent slightly less than the strip width around the tubulated strip; means for conducting liquid adhesive to said flow channel; means for continuously wrapping thread around the tubulated strip after application of the adhesive; means for subsequently severing the thread wrappings where they extend across the longitudinal interval between the contiguous edges of the tubulated strip; and means for advancing a second paper strip at a synchronous speed and applying it over the adhesive side of the first strip after the latter has resumed its original fiat condition.

10. In apparatus for making reenforced binding material, means for uniformly progressing a continuous strip of paper; means for longitudinally tubulating the strip incident to its progression and for maintaining it for a time in tubular form with its side edges separated by a relatively narrow interval, said means affording a narrow segmental flow channel of a circumferential extent slightly less than the strip width around the tubulated strip; means for conducting liquid adhesive to said flow channel; means for continuously wrapping thread around the tubulated strip after application of the adhesive; means for subsequently severing the thread wrappings where they extend across the longitudinal interval between the contiguous edges of the tubulated strip; means for drying the strip; means for continuously advancing a second paper strip at a synchronous speed; means for applying adhesive to one side of the second strip; and means for pressing the adhesive coated side of the second strip into contact with the adhesive coated side of the first strip after the latter has resumed its original fiat condition.

DAVID E. SKEDGELL.