US2481681A

US2481681A - Spinning spindle

Info

Publication number: US2481681A
Application number: US671967A
Authority: US
Inventors: Montane Joaquim
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-06-05
Filing date: 1946-05-24
Publication date: 1949-09-13
Anticipated expiration: 1966-09-13

Description

J- MONTANE SPINNING SPIN Filed ma 24, 1946 2 Sheets-Sheet 1 nvvs/v roe. J NQMLM A TT0RNEy5 Sept. 13, 1949. J. MONTANE SPINNING SPINDLE 2 Sheets-Sheet 2 Filed May 24 1946 mwmwfag J0}? u/M MO/WZWE ,w fok/veys Patented Sept. 13, 1949 UNITED STATES PATENT OFFICE 2,481,681 SPINNING SPINDLE Joaquim Montan, Petropolis, Brazil Application May 24, 1946, Serial No. 671,967 In Argentina June 5, 1945 Claims.

This invention relates to a spinning spindle and has essentially for its object an element of said type, whose characteristics and advantages will be completely hereinafter set forth.

There are many types of spinning spindles having their supporting points for rotation in the lower part, the upper part thereof being entirely free. This is the prominent part since a large bobbin is placed thereon.

The wear and occasional lack of lubrication causes chips and other particles resulting from such wear and lack of lubrication to collect, not only in the bearing but in the spindle too, thus torsions are produced in the overtopping part of the spindle and some off-balance may result from faulty coiling.

Because of all these "drawbacksthe length of the overtopping part of the spindle must not be too long, but, in spite of this, it is not possible to avoid vibrations when the spindle reaches a particular rotational velocity and therefore slacks, thread ruptures, and irregular twisting will result.

The originality of this invention consists in.

supporting the rotating spindle at both of its ends, thereby producing the following advantages:

(a) A mean length of the overtopping part much longer than usual;

(1)) High rotating velocity;

(0) Elimination of vibrations;

(d) Light turning body;

(e) Bearings and shafts easily replaceable;

and other advantages which will be noted in the following description.

In order to show the main feature of this invention, it is here described and illustrated by way of example in the accompanying drawings, where:

Figure 1 is a front elevation view of aset of spindles and their system of. lubrication, with parts shown in section. A

Fig. 2 is a sectional view, on a larger scale, of the upper end of the spindle, showing the arrangement for supporting and allowing gyratory motion. 7

Fig. 3 shows a similar section with another arrangement for gyratory motion.

Fig. 4 is a sectional view, on the same scale, of the lower part of the spindle, showing its manner of attachment to the frame.

In all these figures, the same numbers relate to the same parts.

Referring to the drawings, the spinning spindle 5 2 upper end thereof by means of a capsular or pivotal bearing and to the lower end thereof by a lower ball or roller-bearing.

The lower part of the spinning spindle, Figs. 1 and 4, is hollow and consists of three parts: a cylindrical box 3 inside of which is the ball or roller-bearing 4, allowing the spinning spindle to turn; a fixed pulley 5 for receiving a belt, and an upper cylindrical or conical sleeve 6.

The upper part of the spinning spindle, which may be better seen in Figs. 2 and 3, consists of a cylindrical head I having a downward extension in the form of a frusto-conical cup 8. This head 1 is bored along its axis and provided with screw-threads for receiving a screw 9, which has a slot Ill and a downward conical extension H terminating in the globular member l2, for supporting and allowing oscillatory rotation of the upper part of the spinning spindle.

The middle part of the spinning spindle, which is the main one, consists of a tube or a hollow conical frustum l3 welded or fixed by anysuitable means on the sleeve 6 of the lower part and on the conical cup of the upper part, respectively. This middle part l3 may be made of thin sheet, for lightness.

In order to keep the spinning spindle in its working position, the lower part of the hollow column or tubular shaft 2 has a ring 5 which seats on the ball or roller-bearing race 4, said race being held in position by means of a ring l'5 having an enlarged base, which is pressed against the frame l6 by means of the double nuts l1 and I8, positioned underneath the frame I6 and screwed on the lower end ofthe shaft 2, which extends through said frame It. By this means the hollow column or tubular shaft 2 is fixed on the frame IS. The upper end of the hollow column or tubular shaft 2, has screwthreads in its inner surface for fixing a cupshaped bearing l9a, inside of which the globular member l2 seats. supporting the upper part of the spinning spindle.

In the modification disclosed in Fig. 3, the threaded member SA has a disc-like enlarged extension 20, which abuts the inner face of the conical cup 8 and has a central cavity 2| in its lower face. The turning body of the spinning spindle is mounted upon a pivot 22, having a disc near its upper end 23. This pivot 22 seats in a cup-shaped head 24, screwed in the end of the hollow column or tubular shaft 2, and has its upper end or top engaged in said cavity 2 I.

The lubrication of the spinning spindle turning parts is obtained by keeping constant the oil level in a feeding oil reservoir 25. The oil flows through vertical and

horizontal tubes

26 and 21, goes up through the tubular shaft 2 and overflows into the cup-shaped bearings l9 and 24, through the communicating passage 29. From the horizontal tube 21 branches are provided for each spinning spindle, by means of screwed couplings 30, or, preferably, as shown in Fig. 4, by means of rubber tubes 3|.

The lubrication of lower ball or roller-bearings 4 is obtained by a periodical raising of the oil level in the feeding oil reservoir 25, in such a wayas to overtop the corresponding level of upper cup shaped bearing 19 and 24 to cause the oil to over-- flow and pour outside of the hollow column or tubular shaft 2, and along it. as far as to reach 1 said lower ball or roller-bearing 4. In order to prevent the overflowing oil from running too fast, a wick W shown in Fig. 2, is put into the hollow column or tubular shaft 2, allowing a gradual flowing in the whole set of spinning spindles, which is fed by its common oil reservoir. Thus, this hollow column or tubular shaft 2, besides keeping the turning body of the spinning spindle in its working position, has the additional purpose to serve as a duct for the lubrication of the Shaft and bear ngs of said spinning spindle.

It is obvious that what has been described and represented may be modified in its details, without departing from the basis of this invention, which is clearly set forth in following claims. Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim and desire to secure by United States Letters Patent is:

1. In a spinning spindle assembly of the type described, a rotatable spindle comprising a lower portion formed by a cylindrical box-like base part, a flanged sleeve extendingupward, and a pulley between said base part and sleeve; an upper portion formed by a cylindrical head having a frusto conical cup-like downward extension; and a central. tubular main portion rigidly fastened at the inner surface of its lower end to the outer surface of said flanged sleeve, and, at its outer end, to the outer surface of said cup-like extension, a ball bearing for the spindle, said bearing being housed by said box-like base part, a hollow stationary shaft centrally arranged in and housed by said spindle, for supporting and guiding both ends of said spindle, a cup-shaped bearing secured in the upper end of said shaft, and a rotatable supporting element centrally arranged in said cylindrical head and journaled in said cu -shaped bearing.

2. In a spinning spindle assembly of the type described, a rotatablespindle comprising a lower portion formed by a cylindrical box-like base part, a flanged sleeve extending upward, and a pulley between said base part and sleeve; an upper portion formed by a cylindrical head having a frusto conical cup-like downward extension; and a central, tubular main portion rigidly fastened at the inner surface of its lower end to the outer surface of said flanged sleeve, and, at its other end, to the I outer surface of said cup-like extension, a ball bearing for the spindle, said bearing being housed by said box-like base part, a hollow stationary shaft centrally arranged in and housed by said spindle, for supporting and guiding both ends of said spindle, a cup-shaped bearing secured in the upper end of said shaft, and a self-aligning rotatable supporting element provided with a downward extension having a spherical end portion, said element being centrally arranged in said cylindrical head and bearing.

iournaled in said cup-shaped described, a rotatable spindle comprising a lower portion formed by a cylindrical box-like base part, a flanged sleeve extending upward, and a pulley between said base part and sleeve; an upper portion formed by a cylindrical head having a frusto conical cup-like downward extension; and a central, tubular main portion rigidly fastened at the inner surface of its lower end to the outer surface of said flanged sleeve, and, at its other end, to the outer surface of said cup-like extension, a ball bearing for the spindle, said bearing being housed by said box-like base part, a hollow stationary shaft centrally arranged in and housed by said spindle, for supporting and guiding both ends of said spindle, a cup-shaped bearing secured in the upper end of said shaft, and

extension having a central recess, a self-aligning pivot journaled in said cup-shaped bearing, and having a disc-like ring near its upper end engaged in said recess, said element being centrally arranged in said cylindrical head.

4. In a spinning spindle assembly of the type described, a rotatable spindle comprising a lower portion formed by a cylindrical box like base part, a flanged sleeve extending upward, ,and a. pulley between said base part and sleeve; an upper portion formed by a cylindrical headhaving a frusto conical cup-like downward extension; and a central, tubular main portion rigidly fastened at the inner surface of its lower end to the outer surface of said flanged sleeve, and, at its other end, to the outer surface of said cup-like extension, a ball bearing for the spindle, said bearing being housed by said box-like base part, a hollow stationary shaft centrally arranged in and housed by said spindle, for supporting and guiding said spindle, a frame for supporting the assembly, said hollow shaft extending through said frame and being adapted at its lower end to receive the supply of a lubricating fluid for the assembly.

5. A spinning spindle assembly as claimed in JoA unu MONTANE.

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

Number UNITED STATES PATENTS Name Date Number V Dewhurst etal. Apr. 28, 1885 FOREIGN PATENTS Country Date France June 18, 1934 Great Britain Oct.15, 1930 France Jan. 12, 1903 a rotatable supportingelement provided with an enlarged disc-like Ashton Dec. 3, 1895- Germany rloy'. 14, 1929