US1575739A - Wheel - Google Patents

Description

March 9,1926. 1,575,739

L. K. DALRYMPLE WHEEL Original Filed Sept. 20. 1920 2 Sheets-Sheet l March 9 1926.i 1,575,75 9

L. K. ALRYMPLE WHEEL Original Filed SSN'- 20, 1920 2 Sheets-Sheet 2 i Patented Mar.r9, 1926. v

.UNITI-:D1 STATES PATENT 'ori-IcaY LEWIS K. DALRYMPLE, OF CHICAGO, ILLINOIS, ASSIGNOR OF FOUR ONE-HUNDREDTHS T ALBERT H. ADAMS, 0F OAK PARK, ILLINOIS, AND FOUR ONE-IIUNDREDTIIS T0 JOHN L. JACKSON, 0F RIVER FORREST, ILLINOIS.

WHEEL.

Application led- September 20, 1920, Serial No. 411,553. Renewed August 1.5, 1925.

T0 all 'whom 'it may concern.' y

Be it known that I, LEWIS K. DALRYMPLE,

a Citizen of the United States, and a resident of Chicago, in the county of Cook and l State of Illinois, have invented certainnew and useful 'Improvements in Wheels, of `which the following is a specificationref erence being had to the accompanying draw- `ings.

My invention relates to metal wheels of the type provided with a demountable tirecarrying rim, and more particularly to such wheels in which the hub is connected with the rim by a disc or disc-like member as distinguished from a separate spoke and felly construction. It has for its object to provide improved means for securing the demountable or tire-carrying rim in place, Aconstructed and arranged so that such rim may be very easily and quickly mounted or demounted, while at the same time it will be securely held inv place when in position on the wheel; also to provide a metal wheel of the type described which will be of substantial construction although comparatively light in weight, and which will be comparatively inexpensive to manufacture. I accomplish my object as illustrated in1 the accompanyingdrawings and as hereinafter described. What I regard as new is set forth in the claims.

In the drawings,-

Fig. 1 is a side view showing the inner face of my improved wheel, some parts besection; s

Fig. 2 is an enlarged detail, being substantially a vertical section taken on line 2 2 ofFig.3; s

Fig. 3 is a transverse vertical section taken on line 3-3 of Fig. 1; v

Fig. l is an enlarged detail being a partial vertical section of therim portion of the wheel showing one of the studs by which the tire carrying rim is held in position;`

Fig. 5 is an enlarged detail, being a partial horizontal section taken on line 5-5 of Fig. 3; and

Fig. 6 is a view `similar to Fig. 5, but showing the condition of the `parts when unlocked for removing the tire carrying rim.

Referring to the drawings,

10 indicates the hub which maybe of any approved type but preferably comprises ing broken away and some parts being in fixed flange 11 at'one end portion thereof and a plate 12 removablymounted at the opposite end thereof. The intermediate portion of the wheelcomprises a thin metal inner margin is provided with an annular shoulder 16 which' rests onfthe youter edge yof the plate. 12.

The discs 13 and 15 are firmly secured' tothe hub by means `ofring plates 17, 18l which overlap the inner marginal portions of ysaid discs and clamp them respectively against the flange 11 andV plate `12, through the instrumentality of'bolts .19

and spacing sleeves 2O mountedon said bolts between said ring plates, as shown in Fig. 3. Preferably the disc 13 is provided with a reinforcing ring 21 welded to it opposite the point where the discs 13 and 15 are secured together, said ring and the discs-being firmly united by rivets 22, as shown. While the construction thus far described has been explained rather fully such constructionis to be understood merely as being preferential since the invention hereinafter claimed, which has to do only with the construction by which the usual tire-carrying rim is supported and secured so that it can easily be mounted or demounted, may well be embodied in metal wheels in which the disc is secured tothe hub in various other ways. Y Y

Coming now to a description of the salient characteristics of -my present invention, the disc 13 is provided at its outer margin with a laterally-extending flexible rim flange 23 so constructed that its free margin iscapable of being deflected outwardly, or in other words, of swinging in and out relatively to the axis of the wheel about the outer marginal portion of the disc 13. This rim flange is preferablyformed by bending the outer edge of said disc laterally at approximately a right angle with the body of the disc, and

slitting said rim flange transversely at 'several'points 24 so that it is made flexible'and capable of expansion by the application of force to its inner face. This rim flange is adapted to support and firmly grip a tirecarrying rim 25 of any suitable type provided with a shoulder 26 or equivalent means at one side thereof adapted to abut against the outer portion of the disc 13 at'the base of the rim flange 23. The rim 25 is adapted t0 carry a pneum-atic tire 27 of any suitable type having a valve stem 23 extending` inward through a suitable opening through the rim, as is common practice. Pref erably the tire carrying rim 25 is provided with a boss 29 on its inner concaver surf-ace opposite the opening through which the valve stem extends, which boss is adapted to project through a suitable opening in the rim flange, as shown in Fig. 2. As is also clearly shown in that figure, the rim flange 23 is provided with a collar 30 adapted to fit about the boss 29. The normal diameter of the rim flange 23 is slightly less than the internal diameter of the tire-carrying rim 25, so that said rim fits loosely on the rim flange before its expansion and can then be applied or removed in the usual way. lVhen, however, the rim flange is expanded it grips the tire-carrying rim firmly and prevents its removal. The means for expanding said rim flange comprises an expansible ring plate composed of a pair of substantially semi-circular bars 31 and 32 which are secured to the rim flange 23 `adjacent to and at opposite sides of the collar 30, in the construction shown such bars having their ends in contact with said collar. These bars underlie and fit against the inner face of the rim flange 23 and at their opposite or free ends, are provided with wedge- shaped blocks 33 and 34, respectively, which are secured preferably by welding, upon the free end portions of said bars. The blocks 33 and 34 are spaced a short distance apart and a right and left hand screw 35 is interposed between them, as shown in Fig. 6, said screw being supported by a suitable bearing in the disc 13 and a second bearing in an ear 36 carried by the rim flange 23, as is best shown in Fig. 3.- The screw 35 carries oppositelydisposed wedges 37 adapted tol cooperate with the wedge-blocks 33, 34e to force the free ends of the bars 31, 32 apart and thereby exert outward pressure upon and expand the rim flange 23. As shown in Figs. 3 and 6, one end of the'screw 35 projects through the disc 13 and is squared so that it can conveniently be rot-ated from that side of the wheel.'

From the foregoing description it will be seen that the expansion of the bars 31, 32 operates to deflect the rim flange 23 outwardly by rocking it about the outer marginal portion of the disc 13, so as to cause it `to firmly grip the inner surface of the tire-carrying rim. lbut when the pressure of said bars is relaxed, the resiliency of said rim flange immediately restores it to its normal position,

thereby releasing the tire-carrying rim. As only a few turns of the screw 35 are necessary to expand or contract the bars 31,32, obviously the tire-carrying rim may be very easily and quickly secured or released.

vFor the purpose of preventing lateral displacement of the bars 31, 32 with reference to the rim flange 23 when they are not expanded, and also as an additional means for preventing such displacement of the tirecarrying rim when it is clamped on the rim flange, I provide two studs 33 and carried by the bars 31 and respectively, and extending from the outer faces of'such bars. As is best shown in Fig. 4l, said studs extend through suitable openings in the rim flange 23, and when the tire-carrying rim is secured on the wheel, into registering openings in said tire-carrying rim. These openings are elongated sufficiently to permit of the necessary circumferential movement of the bars 31, 32, as shown in Fig. fl, but their width is such that objectienable lateral movement is prevented. lVhen the bars 3l. and 32 are released from stress by the withdrawal of the wedge members 37, the studs 3S and 39y are released from engagement with the rim 25, thereby permitting said rim to be demounted. ln the construction shown, two of the studs only are employed, each of such studs being spaced one-hun dred and twenty degrees from the boss 2f) which engages the collar 30. '-ly this construction, the rim 25 has a threepoint .cen-

nectio-n to the rim flange, in addition to its being held in position by the gripping action of said rim flange.

I have found in practice that by the use of my construction l am enabled to mount or demount the tire-carrying rim in a very few seconds, as the whole operation requires a few turns only ofthe screw 35. SuitA able means may be provided if desired for locking the screw 35 against rotation so as to prevent accidental loosening of the tirecarrying rim, although l do not consider that necessary.

So far as l am aware, l am the first in the art'to provide a metal wheel with a flexible rim fiange extending laterally from the outer marginal portion of a disc or equivalent device by which it is connected with the wheel hub, and capable of being deflected outwardly to grip a tire-carrying rim; or such a device in which the defied tion of the rim flange is accomplished by anv expanding member placed within said rim flange so as to be capable of applying outward pressure against its inner face. The generic claims hereinafter made are, therefore, not to be restricted to the specific construction'shown and described, but are to be construed broadly enough to include such variations or modifications as would occur to those skilled in the art.

lVhat I claim as my invention and desire to secure by Letters Patent, is-

l. A Wheel having a hub, an intermediate portion, a laterally-extending flexible rim flange carried by said intermediate portion and adapted to fit within an outer rim and to be deflected angular-ly relatively to said intermediate portion into gripping engagement with said outer rim, and means for so deflecting said rim flange.

2. A wheel comprising a hub, an intermediate portion, a laterally-extending rim flange connected at its inner margin with said intermediate portion and adapted to fit within an outer rim and to be deflected angularly relatively to said intermediate portion into gripping engagement with said outer rim, and means for so deflecting said rim flange.

3. A metal Wheel comprising a hub, a disc connected therewith and having a laterallyextending flexible rim flange at its outer margin adapted to lit within a tire-carrying rim and to be deflected outwardly into gripping engagement therewith, and-means for so deflecting said rim flange.

4. A metal wheel comprising a hub, a disc connected therewith and having a laterallyextending rim flange the free margin whereof is adapted to swing -outward about the outer marginal portion of said disc .and is normally adapted to fit within a tire-carrying rim, and means for swinging said rim flange outward into gripping engagement with the inner surface of said tire-carrying rim connected therewith and having a laterallyextending flexible rim flange integral with the outer marginal portion thereof' adapted to fit within a tire-carrying rim and to be deflected outwardly into gripping engagement therewith, and mean-s for so deflecting said rim flange. Y

6. A metal wheel comprising a hub, a disc connected therewith. and having its outer marginal portion bent over at an approximately right angle to form a laterally-extending flexible rim flange adapted to fit within a tire-carrying rim and to be deflected outwardly into gripping engagement therewith, and means for so deflecting said rim flange.

7. A metal wheel comprising a hub, a disc 5. A metal wheel comprising a hub, a disc connected therewith and having a laterallyextending flexible rim flange at its outer margin adapted to fit within a tire-carrying rim and to be deflected outwardly into gripping engagement therewith, an expansible member lying within said rim flange, and means for expanding said member to deflect said rim flange outwardly.

8. A metal wheel comprising a hub, a disc connected therewith and having a laterallyextending flexible rim flange integral with the outer marginal portion thereof adapted to fit within a tire-carrying rim and to be deflected outwardly into gripping engagement therewith, an expansible member lying within said rim flange, and means forexpanding said member to deflectsaid rim flange outwardly.

9. A metal wheel comprising a hub, a disc connected therewith and having its outer marginal portion bent over at an approximately right angle to form a laterally-extending flexible rim flange adapted to fit within a tire-carrying rim and to be deflected outwardly into gripping engagement therewith, an expansible member lying within said rim flange, and means for expanding said member to deflect said rim flange outwardly.

1(). A metal wheel comprising a hub, a disc connected therewith and having a laterally-extending flexible rim flange at its outer margin adapted to fit within a tire-carrying rim and to be deflected outwardly into gripping engagement therewith, an expansible member lying within said rim flange and intermediately connected therewith, and having free end portions capable of movement relatively to said rim flange, and

means for expanding said member to deflect said rim flange outwardly.

11. A metal wheel comprising a hub, a disc connected therewith and having a laterally-extending flexible rim flange at its outer margin adapted to fit within a tire-carrying rim and to be deflected outwardly into gripping engagement therewith, an expansible member lying within said rim flange and intermediately connected therewith, and having free end portions capable of movement relatively t-o said rim flange, means for expanding said member to deflect said rim flange outwardly, and studs carried by said member and engaging said rim flange and said tire-carrying rim.

LEWIS K. DALRYMPLE.

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