US2009850A - Rope twisting machine - Google Patents

Description

y 1935- R. KOSHOSHEK 2,009,850

ROPE TWISTING MACHINE Filed Oct. 12, '1933 3 Sheets-Sheet 1 July 30, 1935. R. KOSHOSHEK ROPE TWISTING MACHINE Filed Oct. 12, 1933 3 Sheets-Sheet 2 Z// WW July 30, 1935. R. KOSHOSHEK ROPE TWISTING MACHINE Filed Oct. 12, 1935 3 Sheets-Sheet 3 Patented July 30, 1935 UNITED STATES PATENT OFFICE j ROPE TWISTING MACHINE Richard Koshoshek, Eau Claire, Wis. Application october 12, 1932, Serial No. 693,334

' .2 Claims. (01. 117-48) This invention appertains to twisting machines for "forming cotton cord twist utilized in making so-called blow-out proof pneumatic vehicle tires.

Much thought has been given by tire manufacturers to the making of blow-out proof tires and cotton cord twist is now employed, which has for one of its functions to reduce the transnnssion of heat. This cord consists of strands of carded'long staple Sea Island cotton. These carded cotton strands are received from the mill on spools and considerable difficulty is experienced in uniting the strands together to form the cord twistj At the present time, even in the best cord twist, the strands'are only slightly twisted or matted together which gives an inferior product. r

It is therefore one,of the primary objects of my invention to provide a machine which will effectively twist the carded cotton strands. together and give the cord any amount of twist (tight or loose) which may be desired in a particular tire construction.

I Another salient object of my invention ,is to provide a novel machine which will receive the ordinary spools of carded cotton strands and effectively twist the strands together to form the desired cord and wind the twisted cord upon a receiving spool or reel. I

A further important object of .my invention is the provision of novel means for-arranging the spool carriers onthe twisting. wheel, whereby a plurality of outer cotton strands will be twisted about a central strand.

A further objectof my invention is the pro vision of a novel guide sleeve for receiving all V of the strands from the twisting wheel, thesleeve acting in the dual capacity of guiding the strands and holding the strands during the twisting opvision of ,novel means for mounting the spools carrying the carded cotton strands upon the twisting wheel, whereby the same can be readily and quicklyplaced' on or removed from the wheel. I A still further object of myinvention is to provide a cord twisting machine of the above character, whichwill be durable and eifi'cient in use,

. which Figure 1 cord twist.

' tral spool carrier 2 I.

one which will be simple and easy tov manufacture and one which can be placed upon the market at a low cost and produce a maximum amount of cord twist in a minimum amount of time.

With these and other objects in view, the invention consists in the novel construction, asrangement .and formation of parts, as. will be hereinafter more specifically; described, claimed and illustrated in the accompanying drawings, in

a a is. a longitudinal section through my improved machine taken substantially on the line li of Figure 2,,looking in the direction of the arrows. I

f Figure 2 is a top'plan view of.my improved machine with parts of the twisting wheel'shown broken away and in section to illustrate :structural details. 0

Figure 3 is a transverse sectional view through the machine taken substantially on theline 3-3 of Figure 2, looking in the direction of the arrows, illustrating the twisting wheel.

Figure 4 is an enlargedfragmentary vertical section illustrating the novel guide sleeve for. the

Figure 5 is an enlarged fragmentary detail view, illustrating the means employed for detachably holding the receiving spool in place.

Referring to the drawings in detail, wherein similar reference characters designate the cor- 3O responding parts throughout the several views,

;the letter Agenerally indicates my improved cord twisting machine which comprises a main base frame to, which can be mounted upon suitable standards or legs, if; so desired. At oneend of the frame i0 I arrange the novel twisting wheel H and at the opposite endof the frame .I' dispose the receiving reel l2 -.and the friction. :windingmeans l3 therefor.

The novel twisting'wheel Ii includes a relatively 140 large disc I a, the axial center of which is provided with a hub which is in turn keyed 'or otherwise secured, as at l6, to a driven shaft IT. The driven shaft 17 is rotatablymounted in bearings 18 mounted on bearing standards !9 which extend transversely of the frame. This driven shaft i! has keyed or'otherwise secured thereto .a relativelyilarge pulley 20, whereby the shaft I! may beturned from asuitable power shaft (not shown). a I Connected to one face of the disc 14 is a cen- Disposed radially around the central spool carrier 2| at equidistantly spaced points are outer spool carriers 22. The

.central spool carrier 2| andthe outer spoolcar tachable rings 38 to which are secured the outer.

ends of contractile coil springs 3|. The inner ends of the springs are secured to the disc H3 or to the adjacent brackets 23. This creates a tension for normally drawing the spools inwardly toward the disc l4 and the spindles 25 allow the free rotation of the spools on the disc. Ad

ditional catches 32 can be employed and as shown, these catches are pivoted as at 33 to adjacent bearing brackets 23 and are of a Z-shape and are wedged over the rings 38 so as to prevent the accidental displacement of the rings from off of the spindle terminals.

Arranged in front of the: main or large disc I 4 is a second axially disposeddisc 34. The disc 34 functions as a guide for the various strands 2a or the carded cotton, and the disc as is ar-' ranged in'spaced parallel relation to the disc Suitable supporting arms 35 connect the discs l4 and 34 together. The disc 34 at its axial center is provided with a guide opening 36 through which is threaded the'strand 28 from the cen--v tral spool and the periphery of the disc carries at equidistantly spaced points guide eyes 31 for receiving the cotton strands from the outer spools.

From the description so far, it can be seen that as the twisting wheel rotates, the spools will be rotated therewith and as the center spool is arranged at the axial center of the disc M, a center cotton strand will be provided and the cotton strands from the outer spools will be twisted thereabout.

In order to bring about the proper twisting of the various strands, I provide a novel guide sleeve 38 which is of an elongated character. The front end of the guide sleeve 38 is provided with a funnel-shaped entrance or flared throat 39 for facilitating the guiding of the cotton strands into the sleeve. If desired, the rear end of the guide sleeve 38 can be slightly flared as at 40 to facilitate the pulling of the twisted cord from the guide sleeve.

This guide sleeve 38 is received within a collar 4| and the sleeve 38 may be adjusted within certain limits within said collar and held in its adjusted position by meansof a set screw 42. The

set screw 42 can be carried by the collar 4| for impinging against the guide sleeve. The guide sleeve 4| is rigidly mounted upon a vertical standard 43 and this standard is 'adjustably mounted within a tubular supporting column 44.

A set screw 45 can be provided for holding the standard 43 in its preferred adjusted position. The lower end of the column 44 is provided with a collar 46 which is in turn mounted upon a substantially inverted U-shaped bracket 41. lower ends of the bracket 41 are received in cuffs 48 which are riveted or otherwise fastened to the base |0.' The collar 46 is slidably mounted on the bracket 41 and can be held in an adjusted position by means of the set screw 49.

7 By providing this type of support for the guide sleeve, it is to be noted that'the guide sleeve can a lower rate of speed than the twisting wheel. actual practice, it is contemplated of driving the The be adjusted both vertically and longitudinally to bring about the desired results and it is essential that the guide sleeve be in axial alinement with the centers of the discs l4 and 34.

As the twisted cord leaves the guide sleeve 38, the same is wound upon the receiving spool |2 by means of the friction winding device I 3 heretofore mentioned. The receiving spool |2 includes the hub sleeve 58 carrying the end flanges 5| and the spool is rotatably mounted upon a shaft 52 which is inserted through the hub of the spool. The ends of the shaft 52 extend through bearing members 53. One end of the shaft 52 is provided with a flange 54 against which normally rests a spring actuated catch 55, whereby the accidental displacement of the shaft 52 is prevented.

As clearly shown in Figures 1 and 2 of the drawings, the receiving spool is mounted directly in rear of the guide sleeve 38, so as to receive the twisted cord from said guide sleeve.

The bearings 53 are carried by inverted U- shaped supporting brackets 56. These brackets 55 extend longitudinally of the frame in spaced parallel relation and the same can be connected together by'a transversely extending brace bar 51. The depending legs 58 of the brackets are of tubular construction'and are slidably mounted upon upright standard 59. These standards are securely bolted to the frame In. Contractile coil springs 6!) connect the brackets 56 with the frame and normally tend to draw the brackets downwardly toward the frame and the receiving spool against the friction winding-means I3 which will now be described.

The friction winding means I3 comprises a friction drum 6! keyed or otherwise secured to a driven shaft 62. This shaft 62 is rotatably mounted in bearings 63 carried by bearing brackets 64, which are bolted or otherwise secured to. the frame l0. One end of the shaft 52 has keyed or otherwise secured thereto a pulley wheel 65, whereby the drum can be actuated from av drive shaft. The friction drum 6| has its periphery covered with a face of friction material indicated by thereference character 66, and the spool hub with its windings rests against said friction covering.

It. is to be noted that the pulley 65 is of a less size than the pulley 20 of the twisting wheel H and these pulleys 20 and 65 are adapted to be driven synchronously from a drive shaft and consequently, the friction drum 6| will be driven at In twisting Wheel twice as fast as the drum, but

obviously, the speed of rotation can be varied to suit individual requirements.

While I have shown pulley wheels, it is to be understood that the mechanical equivalents thereof can be substituted therefor, if desirable,

ing wheelor quickly associate the spools therewith, and consequently, very little loss of time is experienced in renewing the spools.

Initially, the various strands of the carded cord '28 are threaded through the respective guide opening 36 and eyes 31 and through the guide sleeve 38 and onto the receiving spool l2.

Fromthe foregoing'description, it can be seen that I have provided an exceptionally simple and Changes in details may be made without departing, from the spirit or the scope of this invention, but what I claim as new is:-

l. A twisting machine for carded cotton strands comprising a rotatable Wheel, a centrally disposed spool rotatably mounted on the wheel carrying a cotton strand, a plurality of outer spools rotatably mounted on said wheel radially disposed relative to the first-mentioned spool and carrying cotton strands, an axially disposed, normally sta tionary guide sleeve arranged in advance of the wheel for receiving all of said strands, means for rotating said wheel, a take-up reel arranged in rear of the guide sleeve for receiving twisted cotton strands therefrom, and means for sliding and rotating the guide sleeve in vertical and horizontal planes.

2. In a twisting machine, a take-up device for the twisted strands including a supporting base, bearing brackets carried by the base, a friction drive drum rotatably supported by said bearing brackets, spaced uprightstandards carried by the base, pairs of inverted U-shaped supporting members having hollow legs slidably mounted on the standards, means rigidly connecting said supporting members together for synchronous movement, a take-up reel rotatably mounted on the supporting members above the friction drum for engagement therewith, and contractile coil springs connecting the supporting members with the base.

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