USRE14340E - Wheel - Google Patents

Description

H C S 0 H clu W TRACTION WHEEL APPLICATION FILED act. 9. 1916,

Rejssued Aug. 7, 1917.

WA TER 4E. BOSCH, or ST. LOUIS, MISSOURI.

' TRACTION-WHEEL.

Specification of Reissued Letters Patent. Reissued Aug, 7, 1917,

Original No. 1,191,898, dated July 18, 1916, Serial No. 21,754, filed April 16. 1915. Application for reissue To all wlwm it may concern:

Be it known that I, \YALTEI: E. Hosc -I, a citizen of the United bta'tes, residing in the city of St, Louis, State of Missouri, have .lnvented a, new and useful Improvement m Tractiori-VVheels, of which the following is specification.

My invention relates to traction 'wheels of the type generally used on heavy -vehicles, such'las tractors, motor vehicles, artillery,

and heavy farming implements, such as.

threshing machines, m0tor plows, and the like, the, principal object of my invention being to' provide a comparatively light,

' and reducing to a minimum the tendency of the'wheel to slip or skid on slippery surfaces or to spin when soft ground is encountered; W

Further objects of my invention are, to

provide a traction-wheel having a rim portion made up of a series of-segmental members, any one'of which can be readily removed in case it becomesbroken or unfit for service; to provide the sectional rim members with prongs or projections which engage in the ground over which the wheel passes, thereby p roducinf the desired tractive effect between sand 7 wheel and the ground; to providea detachable sectional member which is adapted to be applied to the rim of the wheel when the same is traveling on a roadway or'pavement, which detachable member prevents the pro ections on the rim fronintering or breaking through the surfaccof the roadway, and further to provide a wheel having a rim portion which is practically self-cleaning, inasmuch as said rim portion is provided with openings through which soft dirt or mud will readily pass Without clogging the spaces between theprojections on the sections of said rim.

Wit h theforegoing and other objects in jview, niy invention consists in certain novel I I features :of construction, and arrangements filed October 9, 1916. Serial No. 124,727.

of parts, hereinafter more fully described,

claimed and shown in the accompanying drawings, in which- Figure 1' is a side elcvational view of a traction wheel of my improved construction,

Fig. 2 is a bottom plan of a portion of the wheel rim upon an enlarged scale,

Fig. 3, is a plan view looking toward the inner face of one of the rim sections,

Fig. 1 is a sectional view taken through a portion of the rim of my improved wheel about on the line ll of Fig. 2,

-'Fig. 5 isa sectional view taken centrally through aportion of the rim of the wheel and showing the removable tread member in position uponthe rim,

Fig. 6 is an enlarged cross sectional view of the rim portion of the form of wheel illustrated in Fig. 5,

Fig. 7 is a detailed view of a modified form ofthe joint between the end portions of the sections of the removable tread member. x

As illustrated in the drawings, the main body of my improved wheel comprises a hub 10, two sets of spokes 11, the members of which are arranged in pairs with their inner ends fixed in any suitable manner to the end portions of the hub, and secured to the outer ends of each setof spokes is a rim member 12- inthe form of a metal ring.

The rim or tread portion of my improved wheel is supported by and occupies the space between the rings 12', and, said rim portion is sectional in construction inasmuch as it iscomposed of a series of separately formed members which are alike in size and construction. Ea'ch'member comprises a pair of side plates 13 which are curved to correspond with the curvature of the rings 12, and said plates. are positioned directly against and rigidly fixed to said rings 12 in any suitable manner, preferably by means of rivets H."

Formed integral with the outer portions ofthe plates'13 arc outwardly projecting flanges 15 which bcar directly against the outer edges of the rings 12. The plates 13 are provided with notches 16 or cut-away portions, which accommodate the outer ends of the spokes 11, the same being rigidly fixed to the rings 12 in any suitable manner, preferably by means of rivets 148.

When the members forming the sectional rim are properly assembled, the ends of the plates 13 of one member abut and bear directly against the ends of the next adjacent members, and by virtue of such construction any abnormal strain upon one of the sections during service will be transn1itted to the adjacent sections and this greatly distributes and reduces the shearing strain on the rivets. Each pair of plates 13 is connected at one end by a transversely disposed plate 17, the main body portion of which lies on the periphery of the wheel and occupies the same plane with-the flanges with respect to the plane occupied by the main body portion of said plate, that is to say, inwardly toward the central axis of 1 tion of the wheel.

rotation of the wheel, and the curved forward edge 19 of said upwardly projecting forward portion occupies substantially the same plane with the inner edges of the plates 13. properly assembled, there will bean opening formed between each pair of members, which opening readily permits soft earth, sand or mud to, pass upwardly through the rim portion ofthe ,wheel, thereby practically eliminating the tendency of soft earth and the like to clog and pack on the tread por- The forward portion of each tractor membcr has oppositely disposed inclined tread faces 19*, inclined to the middle plane of the tractor, and which extend inwardly from the outer side portions toward the middle plane of the tractor, (see Fig. 2), and

coni'erge symmetrically toward each other in a rearward direction with respect to the direction of rotation of the wheel. Inother words, the edges of the tread faces constitute the forward edge 19 of the tractor, and produce, a reentrant edge, so that a curved pocket or contracted throat 19 is formed in the middleplane of the tractor member Thus, when the tractor members are.

the earth passing through the throat. The

tractor members may have other features that augment the tractive effect, as follows I Formed integral with the plate 17 .at points a. short distance to each sideof the transverse center thereof are outwardly projecting studs or projections 20, the same being preferably conical in shape, and formed integral with and projecting outwardly from the end portions of said transverse plate are conical studs or projections 21. These studs or projections are arranged on the plate 17 so that portions of their surfaces-coalesce or blend with portions of the curved or inclined' surface 17*, and by virtue of such construction, when thejwheel is traveling over soft within the pockets formed in the openings between the tractor members,and as a result,

the tractor members' are firmly supported and at the same time, the packed masses of earth form a substantial base against which 5 the pro ectioi'is engage to produce an increased or augmented tractive effect.

lVhen a vehicle equipped with my improved wheel is traveling upon'a pavement vented from engaging in the surface of the overcomethis, I have provided a uard or tread member which is adapted to z e easily, and quickly applied to or detached from the wheel; This tread member comprises a series of curved channel-shaped sections, -22, each being of suflicient length to overlie a series of the tractor members, and when applied for use, said tread members lie between the studs or projections 20 as seen in Fig. 6. By reason of the fact that these studs or projections are tapered toward their outer ends, the tread member 22 is necessarily widest at its outer face and said outer face occupies the same plane and lies flush with the outerends of all of the studs Thus, as the wheel passes" or projections. over the pavement or made roadway, the

outer faces of the sections 22 form the tread or engaging surface of the wheel and the studs or pro ections are prevented from breaking through the surface of the roadway. The ends of the sections 22 are provided with inwardly projectingv lugs 23, the same extending between pairs .of the sectional rim members, and passing through 100 or made roadway, it is desirable that the. p o ections on the rim of the wheel be pre i said lugs 23 are draw-bolts "tion,

24, which, when tightened, draw the tread sections firmly into positionbetween the pairs of studs 20.

In Fig. 7 I have shown a modified form ofeonnection between the ends of the tread, members 22,- and in this modified construc-, one end of one of the channel-shaped members is provided with a projecting 25, in which is formed a'notch 26,

an the end of the next adjacent section is provided with a transversely dis-posed pin 27 which, when the sections are properly assembl'ed, enga es in saidnotch 26.

A wheel 0 is comparatively simple, can be advantageou'sly used 11 on all forms of vehicles, and

- the rim of the wheelfrom entering the surface of the rim portion articularly t ose designed for carrying eavy loads, and, the construction of the of the wheel prevents the same from slipping or skidding upon slippery surfaces, and: likewise prevents the wheels from spinning when soft ground is encountered Inasmu h as the rim portion of the wheel is of sectional construction or made'u p Fof a of segmental members,

an one or said members can be readily removed in case it becomes broken or unfit for service. The removable treadkmember is easi'l and ickly applied to or removed from t e wh l, and provides simple means for preventing the studs or projections on pavement or a made roadway when the Wheel is passing thereover.

' It is-evident that on account of the re entrant foim of the forward edges of the tractor members, the openings 19 which are f rmed between each pair of adjacent tractor members have their greatest width disposed? forwardly with res cut to the di- 'rection of rotation of thew eel and conse- "guently-jnst as each tractor member rises romthe ground line, the earth lying in the widest portion of the "opening tends to fall to the "earth andrarry with it the'earth which has become compressed in the con 'tracted throat 19". In this Way the tractor members tend to clear themselves of earth as the wheel rotatesr a It will be readily understo'ddthat minor changes "in the size, form and construction of the various arts of my improved traction wheel can madeand substituted for herein shown and described, without departing from the spirit of'my invention,

' i -=pended claims, 7

-.therefrom, and a pair of side plates, which latter are fixed to the spaced supports with my improved construction,

curved inwardly a series of studs projecting outwardly "85- to the spaced supports" -wardly from said plate.

and fixed tofsaid-rings, a ..jectin their ends bearing directly against the ends of the side plates of the-adjacent rim sectlons. 2. A traction wheel rim comprising a pair of spaced supports and a series ofrim sections secured to said supports, each of which sections comprises a plate, one 'edgeof wheel rim comprising a pair comprises aplate, one edge of which is with respect to the other edge, from said plate, and which are secured with their ends bearing directly against the er'fds of the side pla' section's.

4. The combination with a supporting rings, of tread tinned between said spaced which members comprises plates, the ends of which a palr of side plates pair of spaced rings, each of a pair of side bear directly against the ends of the adjacent members, a plate integral with said side plates, which plate 1s curved transversely, and a series of studs integral with and projecting outv '5. The combination with a pair of spaced supporting rings, of treadmembers posi tioned between and fixed tosaid rings. each of which members comprises a pairotside plates, the ends of which bear directly against the ends of the plat-es of the adjacent tread members, I a transversely disposed plate integral with said side plates, a series of studs rojecting voutwardly from said transverse y disposed plate, and flanges on said side plates which bear directly against the outer edges, of the supporting rings;

.6, In'a traction wheel, the combination with. a pair of spaced-supporting rings, of a series of tread sections arranged between and fixed to said rings, a seriesjof studs projecting'outwardly from the tread surfaces of each section, each series of studs beingjar- "ranged in a transversely disposed curved row. a 7. In a traction w heehythe conibination with a pair of spaced supporting Qrings, of-a series" of, tread sections .'arrang"ed between series of studs prooutwardly from' of e'ac section, each-series of studs being arranged in: a transversely disposed curved row, and there being openings formed between said tread members.

8. The combination with a traction wheel rim having outwardly projecting studs on tes of the adjacent rim members posithe tread. surfaces its tread surface, of a sectional tread meinberapplied to the outer face of the rim and positioned between the studs thereon, the

sections of which tread member are substan- .5 tiallychannel-shaped'in cross section, and

readily detachable means for securing the ends of the tread members to each other.

9. The combination witha traction wheel rim having outwardly projecting studs on its tread surface, said-studsbe ing arranged in circumferentially disposedrow s, of a sec tional tread member applied to the outer face of the rim and positioned between the central pairof eircumferentially disposed rows of studs.

- 10. The combination with a traction wheel rim, having outwardly projectingstuds on its tread surface, said studs belng arranged in circumferentially disposed rows, of a sectional tread member applied to theouter wheel, said plate having a reentrant edge on the forward side of the plate with respect t0 the direction of rotation of the wheel, the A, middle portion of sald-reent-rant edge exearth tendingirearwardly to form a contracted throat inxthe middle plane of the wheel, said plate having a body portion disposed outv 5 wardly, and having inclined tread faces pro jecting inwardly from the plane of said body portion and extending along said reentrant Edge. I

- 12. A. tractor member constructed to be 0 attached a-t the rim of a tractor wheel, 'having a body portion disposed outwardly, and having oppositely disposed inclined tread faces for enga in the wardly from. said body portion, the forward edges of said tread faces, with respect to the direction of rotation, constituting the forward edge of said tractor and extending inwardly toward the middle axis of the truetor member from the outer portion thereof converging toward each other rearwar 1y; so as to form a contracted throat proj ct ing rearwardly in the middle plane of said tractor member, said throat being opeirat its inner side soas to permit the in the middle plane of the wheel to pass freely through the throat.

'13. A tractor member having a bodyv formed of a plate to be attached to the rim of a tractor wheel, said plate having a reentrant edge on the forward side of the plate with tion of the wheel, said edge being located inwardly so as to be toward the axis of the .wheel, said plate having an outer face to lie 11. A tractor member consisting of a plate to be attached to the rim of a tractor earth extending in- ,face disposed substantially V of the wheel, and having tread vfaces extendtractor- :members attached thereto, each of saidtractor members consisting. of a plate having a re'e'ntrant edge on the forward side of the plate with respect to the direction of rotation of the wheel, the middle portion. of said reentrantedge extending rearwardly to form a contracted throatvin the'middle plane of the wheel, each of said plates having abody portion lying substantially onthe peripheryof the wheel and having an inclined tread face projecting inw ardly from said body portion toward the -.wheel center and extending along said re'ntrant edge, said tractor members being disposed adjacent to each other on the rim of the wheel, and said throats being unobstructed whereby L the earth under compression; may pass freely through said throats.

-15. A tractor wheel comprising a wheel having, a plurality of tractor members disposed around the circumference of the wheel so as to' form openings through the face of the wheel between the tractor members, each of said I tractor members consisting of a transversely disposed plate having anouter portion disposed substantially' on the circumferential line of said wheel, the said outer portion having an inwardly disposed extension extending in a curved line trans versely of the wheel, said curved line,:to-

ward the middle plane of the wheel, extending rearwardly with respect to thedirection of rotation of the wheel, said inwardly curved portion operating to COI HPIQSS the soil engaged thereby,

16. A tractor wheel comprising a wheel having a plurality of tractor members disposed around the circumference of the wheel so as to form openings through the face of the wheel between the. tractor members, each of said tractor. members consisting of a transversely disposed plate having an outer portion disposed substantially on the ciroumferent'ial line' of said wheel, the said outer portion having an inwardly disposed extension extending in a curved line trans;- versely of the wheel, said'cu'rved line, toward the central plane of the wheel, extendrearwardly with respect to the direction of rotation of the wheel, said inwardly curred portion operating to compress the soil engaged thereby, said plateseach having a plurality of studs for engaging the earth. 7

17. A tractor wheel havin'ga plurality of v tractor members attached on the rimthereof, respect to the direction of rotasaid tractor members each consisting of a plate having a body portion with its outer on the periphery outwardly projecting ing inwardly from said body, portion toward the Wheel center, the forward edges of said head faces converging toward the middleplane of'the wheel and in a rearward direction with respect to the direction of rota-- tion, said tractor members being disposed adjacent to jeach'otlierwhereby openings are formed therebetween, said wheel constructed so as to supportsaid tractor mem-' bers atthe sides thereof and leave the said of the wheel I a 18. 'Atractor wheel having a plurality of tractor members attached on the rim thereof,

said tractor. members each consisting of a plate having a body portion with its outer face disposed substantially on the periphery 'of'the wheel-,and having curved tread faces constitut ing confirmations of the outer faces of said plate, and extending inwardly, the

forward edges of said tread faces converging toward the middle plane of the wheel.

said wheel constructed so as to support said tractor members at the s1des thereof and leave the said openings,unobstructed in the middle plane of the wheel.

19. [A tractor wheel having a plurality of tractor members vat the rim thereof, each Copies of this patent may be obtained for five cents each, by addressing-the Commissioner!!! Eaten,-

' Washington,0.

openings unobstructed the middleplane.

tractor member having tread faces for engaging the earth, said tread faces eXtendingT inwardly {from theouterportions of the said formed at the rim .0f"'the whee l 'between the adjacent. tractor members, said openings ly-.

ing in the middle planeof the wheel.

I A tractor wheel ha'yin a'plurality of tractor members with tread aces for engaging the earth, saidtread faces extending inwardly from the outer portions'of the tractor members toward'the middle plane thercof, said tread faces each having a forwardly disposed r'eentrant "edge whereby a contracted pocxet is formed on. the forward,

edge of each tractor, in. which the earth is 4 compressed, said tractors being disposed vapartso that an opening is-for'med between each pair of adjacent tractors, each of'said openings having its greatest width forward with respect tothefdirecti'on of rotation of the wheel, whereby. as the tractors leave the ground the weight of earth in the widest part of each:opening tends to" ravitate to the ground and dislodge with ltthe conipressed earth lying in the said pockets.

'Signed at St. Louis, in the State of Missouri, this 4th day of October,'1916.'

WALTER E. HOSCH.

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