US1543252A - Antifriction bearing - Google Patents

Description

June 23, 1925.

C. E. FULLER ANTIFRICTION BEARING Filed Jan. 11, 1923 i Patented June 1925...

PATENT orFlca.

ACIL-AUI!) E; FULLER, F NEW YORK, N. Y.

ANTIFRICTION BEARING.

Application led January 11, 1923. Serial No. 612,014.

To all whomr t may concern: Y

Be it known that I, CLAUD E. FULLER, a citizen of the United States, and a resident of New York, in the county and State of New York, lhave invented an Improvement in Antifriction Bearings, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings l0 representing like parts. l

My present invention relates. to conveyors, and more particularly to an anti-friction roller for gravity conveyors.

In my prior Patent No. 1,487,326, dated March 18, 1924, for an improved assembling table, I have described and claimed an assembling table for assembling a plurality of rows of bricks in position to be operated upon by a mechanical lifting device, the top of such assembling table being comprised of a plurality of paralle-lly arranged grooves or guider-vays in the bottom of which grooves or guideways are located anti-friction rollers, such anti-friction rollers being '25 of a character to allow the bricks as they are guided onto the assembling table to slide along the length of the grooves or guideways by gravity. Such bricks are in practil cally a semi-dry condition; that is, they have just issued from a mechanical drier where the excess of moisture has been driven olf and the bricks tempered to a degree to allow safe handling and piling thereof into 'a kiln preparatory to firing the same. Such bricks are, therefore, extremely friable and difficulty has been experienced with the type of anti-friction rollers heretofore employed because of the tendency of the anti-friction rollers to become clogged with dirt and dust and the stopping of a single anti-friction roller in one of the series of such rollers located at the bottom of the grooves or troughs in the assembling table is suliicient vto prevent the assembling table from functioning in a suitable manner. Various forms of anti-friction rollers have been employed and suggested, none of which have been satisfactory, as all those heretofore employed have been of such a construction as not to prevent the accumulation of dirt, dust, grit, and the like at a vital point.

In my present invention I have designed an improved anti-friction roller designed to obviate the objectionable features herelng provided for guiding such dirt, dust,

and grit away from the rotating member and also the anti-friction bearing therefor.

The object of my invention, therefore, is an improved anti-friction roller for use in gravity conveyors and the like.

In the accompanying drawings illustrating'preferredembodiment-s of my invention, Flg. 1 is a vertical section through one of the side members of a groove or guideway in `an assembling table showing the method of assembling the anti-friction rollers 1n position thereon, two of such rollers being shown;

Fig. 2 is a side elevation of Fig. 1, and

Fig. 3 is a vertical section similar to Fig. 1, but showing a modified form` of my invention.

Referring to the drawings, 10 designates an elongated strip or plate of metal forming one of the side walls of a longitudinal groove or guideway such, for example, as that shown and described in my patent c0- pending application above referred to, and such strip or wall 10 is provided with a plurality of spaced perforations 11 lying in a horizontal plane, but one of which perforations being shown.

My improved anti-friction roller comprises a central hub 12 of hardened steel perforated to receive a threaded bolt 13 of a diameter suitable for passage through the perforation 11 in the strip or plate 10. This hub 12 is provided with a circumferential groove 14 intermediate its ends and in such groove 14 run a plurality of bearing balls 15 shown in dotted position in Fig. 2. 16 designates a cup shaped member of any suitable outside diameter, and the web or flange of this member is forced upwardly, as shownI at 17, into the cup, and the center of such web is out away to provide a hole or perforation 18 slightly greater in diameter than the outside diameter of the hub 12. Two of these cup shaped members are utilized in building a complete anti-friction roller, being placed end to end, as shown in Fig. 1, and the webs thereof secured together in any suitable manner, the portion 17 surrounding the bearing balls'l and forming a ball race therefor.

Theanti-friction roller resulting from the construction above described is that usually employed heretofore for purposes of this character and .it has been found that dust,-

ameter as the outside diameter of the hub 12,

it being necessary, therefore, in assembling the disc 19 on the anti-friction bearing structure to use considerable force. yOne of the discs 19 is provided for each of the cup shaped members 16 and the use of such disc insures that any dust, dirt, or grit falling oif the anti-friction rollers 16 will strike a disc 19 and be deilectedaway from the opening or perforation 18 in the portion 17 of the cup shaped members 16. In assembling my improved anti-friction roller in position on the elongated strip or plate I utilize the threaded bolt 13 which passes through the opening 11 and place on the outer end of such threaded bolt 13 another anti-friction roller of the construction above described, holding both such anti-friction roller structures in position, one on each side of the strip or plate 10, by means of the nut 20. rIhe hubs 12 are therefore stationary as are also the discs 19 While the cup shaped members forming the anti-friction roller proper are allowed to freely rotate on the bearin balls 15.

In B ig. 3 I have illustrated a modification of my invention above described, such modiication consisting of a disc 21 pressed on, and secured to, the hubs 12 in the manner above described with respect to the d-isc 19 but the outer periphery of such disc 21 is flared upwardly and outwardly, terminating in a point in alinement with the top of the cup shaped members 16 as designated by the numeral 22. An anti-friction roller constructed according tothe modification illustrated in Fig. 3 operates in identically the same manner as the anti-friction roller illustrated in Fig. 1.

While I have necessarily shown and described the preferred embodiments of my invention somewhat in detail, it is to be understood that I may vary the arrangement and construction of parts comprising my device within wide limits without departing from the spirit of the invention.

Having thus described my invention, what I claim as new is:

An improved anti-friction roller comprising a stationary' hub, cone shaped dust and dirt excluding discs mounted on said hub and converging inwardly at their peripherics to define a substantially circular cone shaped chamber, and a wheel having its body portion lying in the substantially circular conc shaped chamber and having its periphery lying in a cylinder and housing the periphery of the dust excluding cones.

In testimony whereof, I have signed my name to this specification.

CLAUD E. FULLER.

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