US2430417A - Guide roller - Google Patents

Description

Nov. 4, 1947. G. WILLIAMS, SR 2,430,417

Filed Jan. 12, 1945 2 Sheets-Sheet.l

lea 146111202229, 5",;

WWW 3M Nov. 4,1947. ca. WILLIAMS, SR

' I GUIDE ROLLER 2 Sheets-Sheet 2 Filed Jan. 12, 1945 Ii MN l atenteol Nov. 4, 1947 STATES OFFICE 3 Claims. 1

This invention relates to a guide roller, and more particularly to such a roller adapted to serve as a guide for coiling hot or cold springs, casings, tubes, or the like about a mandrel,

A primary object of this invention is the pro-- vision of an improved roller servin to supplant the guides customarily used in such operations, and adapted to provide a suitable guide die in itself for coil springs of a variety of sizes, within the limits of the device.

Still another object of the invention is the provision of such a guide roller provided with means whereby the same may be readily adapted to take either round or square stock.

A still further object of the invention is the provision of such a device provided with means whereby in the event the guide roller becomes worn portions thereof may be replaced readily and with a minimum of difficulty, without the necessity of replacing the entire guide roller.

Other objects reside in theprovision of a device of this character which will be sturdy and durable in construction, reliable and efficient in operation, and relatively simple and inexpensive to manufacture.

- Still other objects reside in the combinations of elements, arrangements of parts, and features of construction, all as will be more fully pointed out hereinafter and disclosed in the accompanying drawings, wherein there is shown a preferred embodiment of this inventive concept.

In the drawings:

Figure 1 is a side view partially in section and partially in elevation shOWing the roller of the instant invention in association with a piece of stock adapted to be wound in helical form about a mandrel.

Figure 2 is a top plan view of the roller shown in Figure 1.

Figure 3 is an enlarged sectional view taken substantially along the line 3-3 of Figure 2, as viewed in the direction indicated by the arrows.

Figure 4 is a side elevatonal View of an element of construction.

Figure 5 is a view similar to Figure 2 but showing the parts in a different position of adjustment, certain additional parts being added, and

Figure 6 is a sectional view taken substantially along the longitudinal center line of Figure 5.

Similar reference characters refer to similar parts throughout the several views of the drawmgs.

Having reference now to the drawings and more particularly to Figure 1, there is generally indicated at 10 a base of any desired configura- 2 tion, to which is secured a support ii, carrying a rotatable mandrel I2, about which is adapted to be wound stock l3, in helical form. The mandrel 52 may be rotated in any desired conventional manner.

The guide roller, generally indicated at M, of the instant invention is adapted to be mounted on a base plate I5, as by means of a protruding post or bar it. The bar It terminates in a circular flange member I1, having a horizontally disposed central bore 18 therethrough,

The bore I8 is adapted to have passed therethrough a threaded portion E9 of a relatively heavy bolt 20, terminating in a head 2i having a slot 22 therein. Surrounding the shank of the bolt is is a collar 23, provided with a peripheral flange 24 at its end the interior of which is arcuately curved as at 25 to form a bevel edge. A countersunk depression 2! is adapted to accommodate the head 2| of the bolt 20.

The sleeve 23 is rotatable upon bolts 29 and is adapted to be surrounded by a second sleeve 26 the interior diameter of which is slightly in excess of the external diameter of the sleeve 23, and the interior face of which terminates in an arcuate peripheral portion 21 terminating in a feather edge 28 adapted to coact with the arcuate portion 25 to provide a groove or channel of semi-circular configuration.

The outer extremity of the shank of the bolt 19 is adapted to be engaged by an internally threaded nut 30.

The portion of the sleeve 26 normally adapted to abut the face of the member I I is substantially flat as indicated at 3|.

Now from the foregoing it will be seen that the groove formed by the members 25 and 21 forms a channel for a piece of stock of circular crosssectional configuration, the size of which may be readily varied in accordance with the positioning of the nut 36 on the bolt [9. Obviously, the same roller may be utilized for a variety of sizes of dies as desired.

Under certain conditions, as for example when it is desirable to roll square stock into a coil spring, the device of the instant invention may be equally advantageously utilized. Under such conditions the nut so is removed from the bolt l9 and the sleeve 26 removed from the sleeve 23. A washer 35 is then positioned adjacent the arcuate extremity 25 of the flange 24, and the sleeve 26 repositioned thereon, but with the flat edge 3| in facing relation with the flat edge of the washer 35. The feather edge 28 is then reversely positioned toward the member H. A second Washer 38 is positioned on the shank, to protect the feather edge 28 and the shank [9 of the bolt 20 is passed through the aperture of the member I! and the nut 30 rethreaded thereon.

Thus under these circumstances the square stock passes between the face 3| and the inner face of the washer 35, to provide a channel, rectangular in cross section, adapted to accommodate the stock.

Obviously, the positioning of the nut 30 will determine the width of the channel between the washer 35 and the face 3| in order to determine the size of the stock which may be advantageously accommodated.

From the foregoing it will now be seen that there is herein provided a device whichaccomplishes all the objects of this invention and others including many advantages of great practical utility and commercial importance.

It will also be seen that the device of the instant invention provides a. single. roller adapted to supplement and normally to, supplant the previous variety of sizes, shapes and. conditions of diesutilized to accommodate various types of stock.

I claim:

1. In a guide roller, in combination, a. support, a bolt passed through said support, a cylindrical sleeve surrounding said bolt, a flange on said sleeve having an arcuately tapered inner face, a second cylindrical sleeve coaxially surrounding said first-mentioned: sleeve and journaled thereon and having a feather edge coacting with said. inner face to form a channel of semi-circular crosssectional configuration, said second sleeve having a substantially flat perpendicular outerface and being reversible with respect to. said first sleeve. to provide, a. groove. therebetween having. a. vertical, flat guide wall.

2. A guide roller comprising a cylindrical sleeve having a peripheral flange at its outer end merging into the sleeve, a second cylindrical sleeve of the same diameter as the peripheral flange, coaxial with and journaled upon the first sleeve and having an end surface curving downwardly and outwardly into a feather edge, said two sleeves cooperating to provide a semi-circular groove between the fiange and the end surface, and nut and bolt means comprising a journal means and a retaining means for said sleeves.

3. A guide roller comprising a cylindrical sleeve having a peripheral flange at its outer end merging into the sleeve, a second cylindrical sleeve of the same diameter as the flange, having a flat, vertical end surface on one extremity and a feather edge merging into the end surface of the other extremity, said second sleeve being journaled solely upon said first sleeve in selective reversible position, said flange at the end surfaces of said second sleeve being selectively positioned in juxtaposition to constitute a guide groove having a semi-circular cross-section or a guide groove with a vertical end wall.

LEO G. WILLIAMS, SR.

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

UNITED STATES PATENTS Number Name Date 660,500 Frohnert Oct. 23, 1900 968,876 Morrissy et al Aug. 30, 1910 FOREIGN PATENTS Number Country I Date 10,417 Great Britain Aug. 14, 1886

Images