US2599356A - Flier - Google Patents

Description

June 3, 1952 F, w, w D 2,599,356

FLIER Filed Oct. 6, 1949 INVENTOR.

ATTORNEY Patented June 3, 1952 UNITED STATES P'IENT OFFICE FLIER Frederick W. Wild, Cumberland, R. I.

Application October 6, 1949, Serial No. 119,889

8 Claims.

The present invention relates to fliers for roving and twisting machines, and has particular reference to a novel construction therefor.

The principal object of the invention is to provide a flier of simple construction which can be manufactured from standard commercial parts, whereby cost of manufacture is reduced.

Another object of the invention is to provide a strong flier made of corrosion resistant metal such as stainless steel. -An additional object is to provide a flier with a hollow thread guide'into which the roving is readily inserted and which locks the roving within the thread guide during rotation of the flier.

A further object of the invention is to provide a flier which is balanced against vibration during its'rotation.

Another object of the invention is to provide a flier of standard size which has its parts so positioned that the flier can accommodate an extra size bobbin.

With the above and other objects and advantageous features in view, the invention consists of a novel arrangement of parts more fully disclosed in the detailed description following, in conjunction with the accompanying drawings, and more specifically defined in the claims appended thereto.

In the drawings,

Fig. l is a front elevation of the novel flier;

Fig. 2 is a side view thereof;

Fig. 3 is a top plan view thereof;

Fig. 4. is a perspective view of the flier head; and

Fig. 5 is a transverse section on the line 55 of Fig. 1.

It has been found desirable to provide a flier which can be readily assembled from standard machine made parts with a minimum amount of hand work, and which reduces maintenance costs while improving operating efficiency. To this end, I provide a flier head which is preferably cast or forged of stainless steel and which has a central opening for receiving a tubular bearin stem, the upper face of the head having two seating surfaces which are relatively vertically offset and which taper downwardly. I mount a stainless steel hollow thread guide of cylindrical form on one seating surface of the head, as by welding or silver soldering, and I mount a solid stainless steel balance rod on the other seating surface of the head, as by welding" or silver soldering, raising the center of gravity of the guide and presser so that balanced and vibrationless rotation results.

I further provide the hollow thread guide with a longitudinal slot which is linear to facilitate threading of the roving therethrough, and I position this slot forwardly in the direction of rotation of the flier to utilize the high air pressure on the forward face of the guide for holding the roving within the guide during rotation. The novel slot positioning permits construction of a flier designed to rotate. in one direction only, either clockwise or counterclockwise, and thus facilitates manufacture and assembly of the flier parts.

Referring to the drawings, the flier I0 includes a head H in which a tubular bearing stem I2 is mounted, a hollow thread guide l3 which has a presser Id rotatably mounted thereon, anda balance rod [5, the hollow guide and the balance rodbeing on opposite sides of the stem and in the same plane. v

The head II is preferably cast orfor'ged from stainless steel, and has an offset upper face I6 with one part I! sloping downwardly from the center to the outer edge, a central vertical shoulder l8, and a lower part 19 which is vertically displaced with respect to the part I! and which slopes downwardly from the center to the opposite outer edge.

The hollow thread guide I3 is of cylindrical shape, with a transverse upper section 20 which is secured to the head part I! and a lower depending section 2l, the section 20 having its center tangent to the outer surface of the stem and the section 2| being in the medial plane of the head. The hollow guide is formed from hollow cylindrical stock, or may be formed by bending a sheet into cylindrical shape. The balance rod i5 is preferably solid, of stainless steel, and has an upper transverse section 22 which is secured to the head part l9 by welding or silver soldering, and a lower depending section 23, the section 22 having its center tangent to the outer surface of the stem on the opposite side, and the section 23 being in the medial plane of the head.

The hollow thread guide l3 has a longitudinal wall slot 24 which linearly extends along the upper transverse section '20 and the depending section 2 I, the sides 25, 26 of the transverse section 20 being slightly spread to facilitate receiving the roving from the eye 21 of the stem. As illustrated in Figs. 2 and 5, the slot 24 is central on the transverse section, but is positioned forwardly in the direction of rotation on the depending section, the angle of displacement A on the depending section from the medial plane of the flier corresponding to the size of the flier and varying from four to twelve degrees, the preferred angle being seven degrees. This forward displacement creates a high pressure at the slot during rotation of the flier and forces the roving inwardly against the solid portion of the:

hollow thread guide. Any loose fly is forced back into the roving and does not escape into the atmosphere.

The tangential mounting of the upper transverse portion of the hollow thread guide facilitates threading the roving directly into the center of the guide, the roving entering on dead center and passing unrestrictedly to the interior of the depending portion. The offsetting of the sloping head parts I! and I9 permits a weight distribution which equalizes the weight of the balance rod and the hollow thread guide and presser and raises the center of gravity of the thread and pressers to provide vibrationless rotation.

The presser [4 may be of any standard construction, the illustrated presser having a, lower partial loop 28 encircling the lower portion of the hollow thread guide, an extension 29, and an upper loop portion 30 which encircles the intermediate portion of the hollow thread guide between fixed stops 3| secured to the guide by welding or soldering.

When the flier is to rotate in a counter-clook-l wise direction the hollow thread guide and the balance rod are respectively secured on the other sides of the stem, see Fig. 3, and the slot 24 is positioned on the other side of the medial plane of the flier, see Fig. 5.

Although I have described a specific construction for the novel flier, it is obvious that changes in the shape, arrangement and operation of the parts, and in the material used for the parts, may be made to meet the requirement for different roving, twisting and spinning machines, with-" out departing from the spirit and scope of the invention as defined in the appended claims.

I claim:

'1. In a flier, a head having a tubular bearing stem, a hollow thread guide having an upper transverse portion secured to the head at one end thereof and a depending portion, said guide having a. longitudinal thread slot, and a solid balance rod having an upper transverse portion secured to the head at the other end thereof and a depending portion, the transverse portion of the guide being vertically displaced with respect to the transverse portion of the balance rod.

2. In a flier, a head having a, tubular bearing stem, a hollow cylindrical thread guide having an upper transverse portion secured to the head at one end thereof and a depending portion, said guide having a longitudinal thread slot, and a solid balance rod having an upper transverse portion secured to the head at the other end thereof and a depending portion, the transverse portion of the guide being vertically displaced with respect to the transverse portion of the balance rod.

3. In a flier, a head having a tubular bearing stem and a downwardly sloping upper face at each side thereof, one of said upper faces being depressed in relation to the other, a hollow thread guide having an upper transverse portion secured to the head at the higher sloping upper face in tangential relation to the stem and a depending portion, said guide having a longitudinal thread slot, and a solid balance rod having an upper transverse portion secured to the depressed sloping upper face of the head at the other end thereof and a depending portion.

4. In a flier, a head having a tubular bearing stem and a downwardly sloping upper face at each side thereof, one of said upper faces being depressed in relation to the other, a hollow cylindrical thread guide having an upper transverse portion secured to the head at the higher sloping upper face in tangential relation to the stem and a depending portion, said guide having a longitudinal thread slot, and a solid balance rod having an upper transverse portion secured to the depressed sloping upper face of the head at the other end thereof in tangential relation to the opposite side of the stem and 9. depending portion.

5. In a flier, a head having a tubular bearing stem, a hollow thread guide having an upper transverse portion secured to the head at one end thereof in tangential relation to the stem and a depending portion, said guide having a longitudinal thread slot, and a solid balance rod, having an upper transverse portion secured to the head at the other end thereof in tangential relation to the opposite side of the stem and 9. depending portion, the transverse portion of the guide being vertically displaced with respect to the transverse portion of the balance rod.

6. In a flier, a head having a tubular bearing stem, a hollow cylindrical thread guide having an upper transverse portion secured to the head at one end thereof in tangential relation to the stem and a depending portion, said guide having a longitudinal thread slot, and a solid balance rod having an upper transverse portion secured to the head at the other end thereof in tangenw tial relation to the opposite side of the stem and a depending portion, the transverse portion of the guide being vertically displaced with respect. to the transverse portion of the balance rod.

7. In a flier, a head having a tubular bearing stem, a hollow cylindrical thread guide having an upper transverse portion secured to the head at one end thereof and a depending portion, said guide having a longitudinal thread slot, and a solid balance rod having an upper transverse portion secured to the head at the other end thereof and a depending portion, the transverse portion of the guide being vertically displaced with respect to the transverse portion of the balance rod.

8. In a flier, a head having a tubular bearing stem, a hollow cylindrical thread guide having an upper transverse portion secured to the head at one end thereof in tangential relation to the stem and a depending portion, said guide having a longitudinal thread slot, and a solid bal ance rod having an upper transverse portion secured to the head at the other end thereof in tangential relation to the opposite side of the stem and a depending portion, the transverse portion of the guide being vertically displaced with respect to the transverse portion of th balance rod, said slot being positioned forwardly of the central plane of the flier in the direction of rotation.

FREDERICK W. WILD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

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