US2549599A - Flier for textile machines - Google Patents

Description

April 17, 1951 w. HARTLEY 2,549,599

FLIER FOR TEXTILE MACHINES Filed Oct. 14. 1949 I M 14 FIG. 2 1 9 a lo 9J5 i;\ 29

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- Inventor WALTER HA RTL ET 7 ttorney Patented Apr. 17, 1951 .YF I QQ QBE MACHINE Walter Hartley, Radcliffe, England Application October 14, 1949, Serial No. 121,243

In Great Britain May 28, 1949 This invention relates to fiyers for textile machines such as roving frames, spinnin frames and like machines of the general type in which the legs, tubes or barrels of the flyer are connected at the top by a transverse member which in turn is fixed to a central tubular driving socket. The upper portion of the socket has one or more side holes, and the fibrous material coming from the front delivery rollers of the machine passes through the central bore of the socket downwards and then through one of the said side holes to the top of one of the flyer legs, then through or around the leg downwards and finally, either directly through an eye or bush in the lower end of the leg, or over a radially pivoted presser arm and an eye at the end of the arm, onto a bobbin which is located on the drivin spindle.

When present forms of flyer are used in the conventional arrangement of spindle, flyer and bobbin for' the twisting and packaging of the fibrous strand or roving emerging from the front delivery rollers, it is frequently found that the twist inserted in the said strand or roving is so distributed over the length of roving between the delivery rollers and the bobbin that the portion of the roving that is passing between the delivery rollers and the flyer socket is insufficiently twisted and consequently not strong enough to withstand the strains imposed upon it. Breakages occur in the aforesaid portion of the roving, leading to the making of waste and stoppages of the machine to enable the piecing up operation to be performed. Another disadvantage is that a large number of fibres tend to become detached from the aforesaid portion of the roving and accumulate in the form of fly on the machine, necessitating frequent cleaning operations on the part of the machine attendant.

The present invention has for its object the provision of an improvement in the fiyer whereby the foregoing disadvantages are substantially eliminated or minimised, and better packages 1 Claim.- (Cl. 57-415) are wound'which in turn lead to better results in subsequent operations.

I have found that the said disadvantages of the present forms of flyer can be substantially overcome by means of an improvement that ensures that more of the total amount of twist that is inserted in the roving is put into the portion beween the front delivery rollers and the top of the flyer, but without increasing said total amount of twist. I have found that this improvement impedes or delays the running out of twist from the said portion of the roving between the delivery rollers and the flyer top, and that this leads to a strengthening of the said portion and a reduction in breakages: furthermore, the fibres of the roving are more tightly bound together in the portion where they are most likely to become detached.

In order to attain this condition the invention provides within the central bore of the fiyer socket, and diametrically mounted therein or thereon,

a device in the form of a plate having therein an opening. through which the roving is passed before it proceeds out through one of the rove holes, the top edge of the plate having a rounded external surface in simulation of the top of a mule spindle, more of the twist than hitherto being inserted by the use of such device in the roving between the flyer socket and the nip of the front delivery rollers. I I

The invention is more particularly set forth with reference to the accompanying drawings in which: Fig. 1 is a front elevation of a flyer showing the invention.

Fig. 2 is a side elevation partly in section- Fig. 3 is a front elevation of the inserted part :which is shown in dotted lines in Fig. 1.

v is mounted on the spindle, a hollow leg 1 and a balancing leg 8, the socket 6 has one or more rove holes 9, two being usual, as shown.

Inside the top part of the socket 6, diametrically mounted is a device or fitting l2 through or under which the roving I0, travelling in the direction of the arrows, is passed as it is brought down through the open top of the socket to pass out through one of the rove holes 9, on its way to the hollow leg whence it passesto the paddle II and the bobbin (not shown in the drawings) on which the package is built.

Thedevice or fitting I2 is in the form of asmall plate shown alone at Fig. 3 having a hole is in the middle which in the construction shown is somewhat'cf pear shape. This plate I2 is mounted inthe socket 6 and across the axis on which the fiyer rotates and the roving Ill passes through the hole l3 on its way to the rove hole 9. The important feature of this device is not so much the shape of the hole l3 as the top of the device indicated at 4 under which the roving must pass: if desired, for instance the hole l3 could be more in the nature of a vegtical slot openat v the bottom.

The top external edge of the device is provided the tip of a mule spindle round which the roving REFERENCES CITED i The following references are of record in the In a socketed flyer for textile spinning mafile of this patent chines, a plate disposed diametrically within the 5 UNITED STATES PATENTS central bore of the flyer socket, said plate having an opening at its center portion through which fig g x z 1 J g g 187 1 the roving is passed before it passes out of the 506947 Shaw 8 a ""b i 1893 socket, the topedge ofsaid plate lbeing externajl- 1y rounded 'at central portion thereof thereby to 10 r FOREIGN PATENTS impart-t0 the roving a greater degree of twist Number Country Date as it passes from the flyer socket. 315,640 Great Britain July 18 1929 HARTLEY- 329,508 Great Britain May 22, 1929

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