US1378537A - Disk wheel - Google Patents

Description

GEORGE H. FORSYTH, 0F Cl'lGAG', lLLllllOlS.

intensa.

Original application filed November 26, 1916, Serial No. 26a,258.

February 21, w21.

T0 all whom t may concer/1t.'

Be it known that l, Groen H. Fonsrvrn, a citizen oit the United States, residing at Chicago, in the county ot Coolr and State of llllinois, have invented certain new and useful lmprovements in Disk "Wheels, oit' which the following is a specification.

This application is a division oit my copending application Serial No. 26d-,253.

f lhe invention ot this application relates to metal wheels and more particularly to that type characterized by the employmentv of a disk body portion having` lixedly associated therewith an overhanging telly portion adapted to receive a demountable rim.

The principal objects ot the invention are the provision ot rim-assembling means which shall eiliciently support the forward edge of the rim, transmitting the radial shocks of impact `in use directly to the dislr body portion ot the wheel, and which shall furthermore impart to a wheel of this 'type an appearance ot peripheral stability by increasing the apparent thickness of' the telly in simulation of the telly of a wood wheel of artillery type.

ln order that the invention may be readily understood and appreciated by those skilled in the art, l have in the accompanying drawing and in the Jfollowing` description predicated thereon, set forth the invention as em bodied in wheel structures differing in detail.

ln the drawings- Figures 1 and 2 are views in vertical section illustrating the invention as embodied in double dish wheels in the front tace only, Fig. 1 corresponding to Fig. 8 ci the parent application, and Fig. 2 being a composite ot Figs. 11 and 13 ot that application;

ligs. 3, 4 and 5 are tragmentary sectional views illustrating the invention as applied to wheels having a varying telly structure, both front and rear, and corresponding respectively to Figs. 1li, 15 and 16 of the parent application; and

Figs. 6 and 7 are fragmentary views illustrating the invention as applied in the front face only oi double and single dislrwheels respectively.

Having reference to Figs. 1 and 2, these wheels are represented as comprising the hub 11 with the 'forward hub plate 12 and a rear hub plate 13 developed into the usual brake drum 14. lliller member 15 is employed within the space between the two Speccaton of Letters Teatent.

llatented May 1i?, 1221.

Divided and this application tiled Serial llto. lll-6,660.

hub plates usually occupied by the spokes ot a wooden wheel. lhe body ot the wheel proper comprises the front and rear dislrs 16 and 1' having their central portions separated by the liller member 15 and clamped between said liller member 15 and the two hub plates 12 and 13 by the bolts 16.

1n 1 the iront dish 16 is bent rearwardly at 19 'from a step, shoulder or bead at 20. llrom 19 the dish entends radially and then rearwardly to torni a telly portion having' a vertical iront jface 21 and horizontal rim-receiving tace 22. The rear disk 1'? entends in a radial direction and then rearwardly parallel and in juxtaposition to the portions 21 and 22 of the dislr 19, and at its margin is housed within the lipped over margin 2? et the dislr 16.

rlhe overhanging telly portion of the wheel is adapted to receive the demountable rim 241, which is preferably ot slightly less inner diameter than the outer diameter ot the telly portion 22 whereby as the rim is assembled laterally with the telly the latter will be subjected to inwardly directed radial compression shared by the dislr body et' the wheel.

Els rim-assembling means a shim or shims are employed comprising either an annular shim, split or integral, or a plurality ot' individual shims disposed at spaced intervals about the wheel. rl`he shim or shims preterably comprise a body portion 25, heel portion 26 and a head portion 2'?, the body portion of the shim and the vertical dish portion 21 being apertured to accommodate the assembling bolts 26. The heel 26 of the shim serves as a i'ulcrum, being seated. upon the ledge 1S) above the bead or step 26. ils the bolts 28 are drawn home, the shim is tilted upon its liulcrum causing its head 27 to describe an are about the tulcrumal point which exerts a torce* rearwardly and outwardly upon the forward edge of the rim. .llhis results in l'orcing the rim rearwardly to compress the telly portion 22, and also transmits radial pressure inwardly upon the dish body 16. The assembled wheel presents a lront tace wherein the body portion 25 of the shim is substantially flush with the outer portion ot the disk 16 relieved by the bead 20. lWhere an annular shim is employed, as is preterable, the front tace of the shim presents the appearance et a :telly tace conveying an impression ot telly-thickness similar to that of the wooden telly on a coperates with the shim do as hereinbe'fore Wheel ot the artillery type.

The description of Fig. 1 lapplies in substance to Fig. 2, the principal difference being that the horizontal Wall 19 extends rearwardly to substantially the median plane of the Wheel Where the vertical portions of the two disks extend radially side by side and then in opposite directions front and rear to form a telly substantially T- shaped in cross section, ox-'erhanging front and rear instead of at the rear alone. The upper part ot Fig. 2 includes the mounting of the Valve stem as illustrated in Fig. 3 of the parent application, Whereas the lower portion ot the figure is directed to the Wheel generally as shown in Fig. 11 of the parent application. Aside from these points of diff ference, and the tact that beyond the bead 2O the Wall 19 is oii'set as illustrated at 19, the structure pertinent to this invention is the same, and the appearance presented by the shim 25 corresponds to that ot Fig. 1.

InV Figs. 3 and 4 the forward and rear disks 29 and 30 are bent toward each other to form the steps or beads 31, 32 whence to extend horizont-ally at 33, 39; and thence radially at 35, 36 in contact with each other and thence horizontally' in opposite directions 37, 3S to torni a T-shaped :telly to support the rim 39. Upon the two sides ot the wheel both front and rear are mounted annular shims 404-1 having their heel portions tulcrumed upon the beads 31, 32 and assembled with the Wheel by means of the long bolts t2 extending between both ot the shims and through the Walls 35, 36. In this particular form of construction the disks 29 and 30 are placed under radial stress by the inward thrust applied'to the beads 31, 32 as the shims are drawn together with their heads beneath the demountable rim.

In Fig. 4l the demountable rim is omitted, the tire setting directly upon the telly portions 37, 38 and being confined laterally by means ot the head portions 35a and 36a ot the shims. In this instance the particular function oft the shims is to retain the tire and to impart an appearance of Ytelly thickness Without regard to any material stress imparted to the disks.

A construction somewhat similar to Fig. 4 is shown in Fig. 5, the demountable rim being omitted and the tire held in place by the heads ot the shims. Slight differences are also present in the coniguration of the telly ortion of the disks.

In lig. 6, corresponding to Fig. 9 of the parent application, the invention is shown as applied to a double disk TNheel in which the rear disk 43 extends in a substantially radial direction from the hub portion relieved by pockets 43a. For use in the other forms oit construction the front disk is provided with the step or shoulder 44 Which described.

F ig. 7, cfnresponding to Fig. Z ot thc parent application, illustrates a wheel coinprising a single disk L1G provided with :r stepped portion 41-7 and having associated therewith the rim-assembling shim iS, tluy functions performed there y being suhstantially the same as described with rel'- erence to the foregoingfigures.

I claim:

1. In a Wheel, the combination oi" a hul portion, a tire-carrying portion, a medial disk portion provided with a step adjacent its periphery, and a tire-retaining member having a tulcrum bearing at its inner edge upon the step.

2. In a Wheel, the combination of a hub portion, a tire-carrying portion, a medial disk portion having an annular bead adjacent its periphery, and annular' tire-retaining member haring` a 'foot step tulcrum bearing upon the bead.

3. In a Wheel, the combination with a hub, a tire and a tire-retaining member. ot a sheet steel disk haiv'ing a peripheral step forming a fulcrum seating of the tire-retaining member, said disk being then re rersely bent to torni a i'elly.

Ll. In a Wheel, the combination with :i hub, a tire and tire-retaining member, ol a single sheet steel disk having a medial portion with a peripheral step forming a tulcrum seating or' the tire-retaining member, said disk member being then reyersely bent to torni a telly.

A. disk Wheel comprising a body portion and a peripheral tire-carrying portion, the body portion of the disk forwardly beaded a slight distance inwardly from its periphery to form a fulcrum bearing for rim-positioning means, that portion ot the disk between the bead and tire-carrying portion being substantially parallel to the plane of the Wheel to accommodate a rimpositioningshim and to simulate the side :tace ot a telly.

6. A disk Wheel comprising a body portion and a peripheral tire-carrying portion` the body portion or the disk forwardly beaded a slight distance ii vardly from its periphery, that portion ot the disk between the bead and tire-carrying portion being substantially parallel to the plane ot the wheel to simulate the side tace o'r a telly, and a tire-retaining member having a ttulcrum bearing upon the disk outwardly oi' the bead.

7. A disk Wheel comprising a body Por tion and a peripheral tire-carrying portion, the body portion ot the disk tor- Wardly beaded a slight distance inwardly from its periphery, that portion olf the disk between the bead and tire-carrying portion being substantially parallel to the plane ot llO the Wheel to accommodate a rim-positioning' shim and to simulate the side face of a ielly, the shim and disk presenting a suh- Stantially flush surface.

8. In a wheel, the combination of a hub portion, a medial disk portion, and an overhanging telly portion adapted to receive a deniountable rim, the medial disk portion having an annular bead adjacent its periphery, and an annular rim-retaining and supporting shim fulcrumed at its in ner edge upon the bead, and bolts engaging the shim and the disk outwardly of the bead for rocking the shim, whereby oppositely directed reaction is set up and maintained between the rim and that portion of the disk inwardly of the bead.

In witness whereof l have hereunto signed my name in the presence of two subscribing witnesses.

GEORGE H. FORSYTH.

Witnesses MARGUERITE SYP, FLORENCE K. GILLESPIE.

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