US1617572A - cameron - Google Patents

Description

19 Feb J. A. CAMERON SLITTING AND WINDING MACHINE Filed June 1, 1923 4 Sheets-Sheet 1 ATTORNEY 1 Feb 927 J. A. CAMERON SLITTING AND WINDING MACHINE Filed June 1, 1923 4 Sheets-Sheet 2 INVENTOR ATTORNEY Feb- 15 1,617,572 J. A. CAMERON SLITTING AND WINDING MACHINE Filed June 1, 1923 4 Sheets-Sheet 5 V; 2 /L l0 ATTORNEY SLITTING AND WINDING MACHINE Filed June 4 sheets s eet 4- TOR' Patented Feb. 15. 1927.

UNITED STATES v -1,617,572 PATENT OFFICE.

aamnsa. CAMERON, or BROOKLYN. ivnw'vonxynssienon '10 cArlrnRoN MACHINE comrm, or Bnooxmm, NEW YORK, nlconroaa'rron or NEW-YO K.

smrrmennn wnvmive madman.

' Application filed June 1, 192a. Serial No. 642,759.

This invention relates to slitting and wind-, mg mach1nes-- for flexible material and is 4 more particularly an improvement upon the construction shown in'Patents Nos.1,355,106

5 and 1,355 107 which disclose a winding drum'f hav ng grooves in its surface for separating" adjacent slitted sections of flexible material so as to prevent interweaving of adjacent coils. I I

- It has been found in practicethat .when the textureof the flexible material varies slack is' sometimes produced at some points laterally of the sections and that, in conse- I quence, the flexiblematerial does not conform to the cove formation .of the winding drum. ttemptshave been made to overcome this difiiculty by employing the expedient of increasing the tension on the web as a whole. When acting .on certain mate: rials, however, this expedient is very unde-.

sirable.

. The main object and feature of this invention is to provide means whereby this tendency to slack may be' overcome in connection with a grooved winding drum without applying a relatively heavy tension to the web as a whole. I

In the accompanying-drawings the invention is disclosed in several concrete and preferred forms in which:

Fig. 1 is a vertical sectional view of a portion of one type of slitting and winding machine, showing surface winding means and score-cut slitting means, to which the invention'has been applied.

Fig. 2' is a'diagrammatic view showing another type of slitting and winding machine, in which shear-cut slitting means are employed, embodying the invention.

Fig. 3 is a fragmentary face view of the slitting means of Fig. 2.

Fig. 4 is a fragmentary front elevation with parts broken away and in section, 0 the parts shown in Fig. 1.

Fig. 5 is a view similar to Fig. 1 with the slitting means omitted and showing the take-up device on a large scale.

Fig. 6 is a fragmentary view in front elevation of the take-up device showing its action on the flexible material.

Fig. 7 is a front elevation of the winding and slitting meansshowing a number 0 slack take-up members and the action of the same on the flexible material.

. Cameron and f shall enter a Figs. 8 and 9 are detail views of the slack take-up shaft and spring.

In the type of machine shown in Figs. 1, 4, 5, 6 and 7 the winding means consist of two surface winding drums 1 and 2 and a winding shaft 3 on which the flexible mater 1al is wound into coils in side by side relation in a manner well understood. If desired, a top pressure roll, not shown, may

be employed. One of these winding drums, preferably front winding drum 1, is grooved in, the manner and for the purpose described in 'the Letters Patent above referred to. 4 rs a tension roller over' which. the flexible material passes before it reaches the winding means, and, in the present case, this tension roller formsalso a backing roller for the score cutters 5. The construction of. the score cutters forms no part of the present invention bein claimed in the application of irch filed August 25, 1920, Ser. No. 405,997, and in the application of J ohnstone Ser. No. 636,134-filed May 2, 1923. .Interposed between the slitting means and the (grooved winding drum is a slack takeup evice 6. This device consists here ofa series'of members, their number dependin upon the number of slits in the paper, eac

of which maybe, and here-is, constructed as follows:- ounted upon a stationary part of the machine, such as I-beam 7, is a bracket 8 that carries a shaft 9. Mounted loosely on this shaft is a member 10 in the form of an arm having a curved face 11. A s ring 12 surroundsshaft 9 and has one end earin on arm 10 and the other anchored on ad ustable member 13 which latter is in. slotted engagement with pin 25 of shaft 9. The pressure of this spring. urges curved face 11 against the slitted sections 14. A latch 15 pivoted at 16 on member 10' provides a means whereby when member 10 is moved back, as shown in dotted lines in Fig. 1, said latch may be placed against the bracket tovovercome the tension of the spring and hold said member in its retracted osition. The 5 ring tension on each member 10 can be in ividually adjusted.

I have found that,- in order to obtain ade quate separation of the slitted sections, it is only necessar that the flexible material ew grooves adjacent'each sl1t, and I have found that, ,by straddlin each curved plate 11 withrespect to the s t be-.

tween two sections, proper conformation of the flexiblematerial with a sufiicient number of grooves is effected. In Figs. 6 and 7 is shown the action obtained.

In Figs. 2 and 3 the invention is shown applied to a shear cut slitting'machine. As here disclosed, 1 and 2 indicate the surface winding drums and 3 the winding shaft.

' Drum 1 is grooved. 4' is the tension roller,

the slit to compel said sections to enter the grooves of the drum adjacent the line of slitting.

2. The combination with winding means including a winding drum having grooves for separating slitted sections of flexible material, of a slack take-up device consisting of a pivotally supported bearing member engaging the slitted' sections on'both sides of Lemma the slit, and spring means for resiliently urging said bearing member against the sections.

3-. The combination with winding means including a winding drum having grooves for separating slitted sections of flexible material, of-a sla'ck take-up device consisting of a pivotaliy supporte bearing member engaging. the slitted sections on both sides of the slit, spring means for resiliently urging said bearing member against the sections,

' and a latch for overcoming the action of the spring means to holdthe bearing member in inoperative posltion. V

y 4. The combination with winding means 1!lCll1d-1I1g..fi winding drum having grooves -for .separating slitted sections of flexible mater1al, of a slack take-up device consisting of a plurality of individually spring pressed members each straddling a slit and bearing against adjacent slitted sections to compel said sections. to enter thegrooves of the drum adjacent the line of slitting.

Signed at Brooklyn in the county of Kings and State of New York, this 18th day of May, 1923.

JAMES A. CAMERON.

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