US1492232A - Automobile disk wheel - Google Patents

Description

Amai 22 .1924. 1,492,232

W. E. WILLIAMS AUTOMOBILE DISK WHEEL Filed April 30, 1920 .2 c w w w www | Cl? Ni a Qi T ,IU I

Patented Apr. 29, 1924.

UNITED STATES PATENT OFFICE.

WILLIAM ERASTUS WILLIAMS, OF CHICAGO, ILLINOIS, ASSIGOR T AMERICAN STEEL FOUNDRIES, 0F CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

AUTOMOBILE msx WHEEL :Application tiled April 80, 1920. Serial No. 377,819.

To all whom. it 'may concern.'

Be it known that I, WILLIAM ERASTUs WILLIAMS, a citizen of the United States, a resident of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Automobile Disk Wheels, of which the following is a specification.

My invention relates to disk Wheels adapted to receive pneumatic tires, and `especially to the disk and rim construction.

Reference will be had'to the accompanying drawing in which Figure 1 vis a front elevation of the wheel.

Figure 2 is a Vpartial diametrical section of the wheel.

Figure 3 isa modified form of the rim fastening.

Figure 4 is an enlarged detail o-f the demounting feature at the hub.

In the drawing 1 indicates an automobile hub, here shown as the front wheel. v2 indicates my disk and 3 indicates the main section of the rim and 4 indicates the companion flange of the rim.

The hub is provided with a special shaped flange 5 havin the curved surfaces 6 and 7 and the straig t portion 8.

The disk 2 is shaped to lit the curved portions 6 and 7 but is so shaped that there is clearance across the straight face 8 of the hub flange 5.

An annular clamping ring 9 is shaped to fit the disk opposite the curved surfaces 6 and 7 and is held in place by a series of screw studs 10 screwed on with special nuts 11 having within them the lockwashers 12 which remain within the nuts when the latter are screwed oil by reason of the dove tailed or under cut seat for the spring washers as is indicated by 13. Y

In clamping the disk to the hub as indicated, throu h the medium of the nuts 11, a tight snug t is made on the curved surfaces 6 and 7 which thus relieve shearing strain on the stud screfff. 10 and permits a clearance around the said studs in the holes that pass through the disk for the entry of the studs through the disk.

On removing the nuts 11 the llange 9 and the disk 2 readily come olf, owing to the eas release from the curved surfaces.

y shaping the angeof the hub and the inner annular surface of the disk to the shape of the curved surfaces 6 and 7 and the cost of the metal which I succeed in saving by reason of the construction shown.

The disk 2 has a peripheral annular portion fitting the interior surface of the rim and continuous with a broad annular c onical fitting the outwardly converging conical flange of the rim is indicated, in order to permit thedisk to be 'dished as indicated, presenting a concave surface to the outside in order to resist skidding, and said conical` zone merges' b a long gentle curve in the disk portion o the disk.

A further feature of value obtained by inclining this flange 14 outward as indicated is to permitthe ydish of the disk as described, and also to permit a greater depth for 'the companion flange 4 in the distance marked D in Figure 2. The companion flange is secured to themain ortionof the v rim throughv the medium o a liange 15 which is secured by screws 16 engaging ange nuts 17 on the back of the disk. The inflation pressures o f a pneumatic-tire exert enormous delecting strains, on this com anion flange, which must be taken up by tlie screws 16. It is desirable to have as -few of the screws 16 as is 'permissible for taking up the bursting strains of the inflation pressures of the tire-tendin push olf the companion flange 4 in a s1 ewlse direction.

Thus the companion flange 4 becomes as it were a bridge from screw 16 to screw 16 and if this distance D is too small the ange will spring between the screws and thus it is almost necessary in order to have a perfectly safe ange, to have the depth quite large, for if thec internal flanges 14 and 15 extend in parallel relationshi to the plain of the revolution of the whee it lessens the amount of dish thatv may be iven to the disk and further it crowds 1n upon the location of the air valve and fails to give suilicient clearance for proper access to the stem of the air valve on the inside of the-disk. But with the flanges inclined as I have shown, plenty of clearance is providedfor the vair valve stem and plenty of dish is permitted to the main disk 2 of the wheel.

The lflange 14 of the main section 3 of the rim is turned over into a shoulder or flange 18 which registers and holds concentric the flange 15 pf the companion flange 4 and thus relieves the screws 1G from shearing stress, which is a great desideratum.

In Figure 2 the screws 16 are placed in a line arallel with the axis of the wheel and em ossed or raised portions 20 are provided for seats for the heads of the screws.- The nuts 17 as shown in Figure 2 have little flanges 19 on their edges and are riveted through the disk and the flange 14 of the main rim and section 3, as indicated by 21.

In the detail, Figure 3, I show the screws passing through at Aright angles to the flanges 14 and 15 instead of beingV parallel with the axis of the wheel as is shown in Figure 2.

The inclination of the fianges 14 and 15 outward as is shown furnishes the further `advantage that as the companion flange is secured home the pressure of the tire on that flange is partly taken up by the inclined contact surfaced between the flanges 14 and i 15 and not necessarily all transmittedl to direction and passing by a long gentle curve into an inwardly diverging conical zone fittig the conical fiange, yand means for rigidly connecting the flange and the closely fitting conical zone.

2. The combination with a circumferentially divided rim the two parts of which are provided with closely fitting, outwardly converging conical flanges, of an inwardly dished disk having its circumferential zone gradually reverse in direction and by a continuous gentle curve merging in a conical zone and closely fitting one of said flanges, and bolts passing said flanges and conical zone.

3. The combination with a rim made in two unequal, peripherally continuous rings connected by broad closely fitting marginal flanges converging toward the hubs outer end, of a disk having the side toward said end concave, its concave portion being reversed by a single bend and merged in a conical zone fitting within said flanges, and bolts passing through the flanges and disk bindmg all together, whereby strains are transmitted wholly through long gentle curves.

4. In a wheel of the class described, the

combination with a wheel web, of a metal rim divided at some distance from each face of the wheel and having the meeting edges of the two parts provided, respectively,

with inwardly extending fianges having their meeting faces inclined away from the central plane of the wheel, and the body of one fiang'e being overlapped by said web, wedge-like nuts riveted to the web, and bolts parallel to the axis of the wheel, passing through said flanges and engaging said nuts, res ectively.

.igned at Chicago, in the county of Cook and State of Illinois, this twenty-seventh day of April, 1920.

WILLIAM ERASTUS WILLIAMS. Witnesses:

B. J. BERNHARD, F. Zonm..

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