US1021515A - Resilient wheel. - Google Patents

Description

G. D. GALVIN.

EESILIENT WHEEL.- APPLICATION FILED ulm, 1912.

1,021,515. Patented Mar. 26, 1912.

WITNESSES V t monum UNITED STATES CARROLL n. GALVIN, or MERCHANTVILLE,

PATENT OFFICE.

NEW JERSEY, ASSIGNOR OF ONE-SIXTH TO- CHARLES JAOOBSEN, ONE-SIXTH '10- EUGENE S. COGHRAN, AND. ONE-SIXTH T AMANDUS F. JOBSS,'ALI1 OF WASHINGTON, DISTRICT OF COLUMBIA.

BESIIJENT HEEL.

wheels and consists in its broad and genericscope of a novel demountable felly, which is secured at its inner periphery to a pneuniatic tube or cushion, and at its outer periphery. to a tread member of any desired or conventional construction.

. of a demountable felly which is substantially It further consists of a novel construction mens s within the .ion employed.

It further consists of a novel construction of a demountable felly with whichcoopersites a novel construction and arrangement of an inflatable tube.

It further consists of a novel construct-ion pneumatic tube or cushof a demountable felly' which may be readily.

assembledand removed with respect to the rim 'of the wheel body, the inner portion of such detachable felly being recessed in such a manner that by the. air compression when the tube is inflated, it interlocks around and under projecting shoulders of the telly, the

inner face of t-hedetachable felly being con-' structed concentric -to the outer face of the wheel rim, thus becoming a ridingmember for the wheel body in case of deflat on, without resultant injury to the wheel construction or stoppage for repair or injury to the pneumatic tube. i 4

It further consists of a novel construction I of an inflatable tube, the inner periphery of the tread, it being tube is thus direct felly member and. with the detachable felly which is provided with terminals,-which in terlock with the fixed rim and the fastening devices therefor, while the outer periphery of the inflatable tube interlocks with the detachable felly member and the fastening devices cooperating with such felly and-with notdthat the inflatable y {connected with the fixed member, so that the inner periphery of the two will be held in suspension. a

- It further consists of a novel construction of a pneumatic tube and anovel manner of securing the same-in position w th respect to the other, parts of the device. i

' Specification 0! Letters P tent.

Anplicatlon filed January 8, 1913. Serial No. 669,97

' Patented Mar. 26, 1912.

It further consists of other novel features of construction, all'as will be hereinafter full set forth.

or the purpose of illustrating my-invent1on, I have shown in the acc mpanying drawings one form thereof which is at present pre found in practice to give satisfactory and reliable results, although it is to be understood that the various instrument-alities of which my invention consists can be variously arranged and organized and, that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents a sectional elevation of a portion of a resilient wheel embodying my invention. Fig. 2 represents a side elevation of a portion of my device. Fig. 3 represents-- a sectional elevation similar to Fig.1. Figs. 4 and 5 represent sectional views showing details of the construction.

.1 designates the spokes which are secured erred by me, since the same had been with respect to the fixed rim or innerfelly 2 in any desired manner, said fixed rim or felly 2 being provided with inwardlyconverging sides 3, the inner portions of which are recessed as indicated at 4. The outer periphery of the fixed rim 2 .has secured thereto in any desired manner a tnetal tire 5, the side faces of which are preferably rounded as isindicated at 6. I

7 designates clamping disks which are provided with a laterally extending flange 8 adapted to interlock with the recesses'et of the fixed rim 2, said disks 7 being secured in assembled position by means of draw bolts 9 provided with nuts 10, saidrods 9 assing through the fixed rim 2 and also t rough the inner terminals 11 of the inflatable tube 12, which will now be described; This'tube is preferably constructed of alternatelayers of fabric and rubber and comprises the driving disks 13, the inner terminals 111 of which have embedded therein the cores 14,.

thereby formin non-compressible wed eshaped termina s which interlock with t e clamping plates ,7 and the fixed rim- 2'. The.-

outer per1phery'"of" the side disks '13 has embedded therein the non-compressible cores .15, thereby forming structitjwof an outer demountable felly 17 wedge-shaped terminals. 16,- which are inter ocked with. a novel con-,

' .in.- 1 t; manner hereinafter explained. The

outer portion or layer of the pneumatic tube periphery of the inner layer of the pneu matic tube is centrally splitas indicated at 20 .andt.is stitched or otherwise secured together its indicated at 21. The demountable fe1ly17 is recessed as indicated at 22, thereby;..;fior1ning.shoulders 23, the inner lJEIiPhr:

cry of which is concentric to the face 24 of the tube 12.

25 designates a layer of any desired material which engages the side faces and the inner periphery of the 'demountable felly 17 for its reinforcement, it beingnoted that the inner periphery of said demountable felly 17 is centrally recessed as indicated at 26 in order to receive-the ends of the pneumatic tube and prevent creeping of .the latter. Theside walls ofwthe demountable felly near their outer periphery are'beveled inwardly as is indicated at- 27, thereby adapting the same, to. interlock with the wedge shaped terminals 16 and the clamp ing rings 28, which latter are secured with respect to'thefolly 17 by the draw-bolts .29 passing therethrough, and also threugh the terminals 16 and the clamping r1n gs,..' suchbolts being provided with fastening means, such as the'nuts 30.

31 designates the outer rubber tread which; "is vulcanized on to a hard rubber base '32,

which is further dovetailed on to a serrated metal. base or tire 35. '33 designates reinforcing dowels whichfix the telly 17 to. the tread and prevent creeping of the outer tread on the fel-ly. 34, designates a valve controlled conduit of any desired or conventional type which. passes through the fixed rim, .2,- the tire 5, and ;-;theinflatable tube 12inv order that such tube may be inflated (ir deflated asldesiredv I preferably also employ set screws 36 Which e11gage;tl1e

clamping plate 28 and the metal body portion of the tread The cl ampingplates 7 are curved doivnwardluand outwardly as indicated at 37 in. order to partially encompass the cushioning zone of the tire.;.

and preferably terminate at a point beyond the inner periphery of the demountable telly 17 in order to resist the :side thrust of the tread member. c

Special attention-is (lirected to-the manner in which the inflatable tubeis split at its outer periphery thereby ,cnabling one to vulcanize additional material on the in ner face of the tube in case the same should at any tune become necessary by the reopening of said tube.

In brief-conclusion of the salient 'flilHilOlls' of my novel construction of demountahlc felly in combination with its inflatable tuluand its exterior tread, I obtain direct drive for the transmission of power from the body member to the outer treadby means of the wedge-shaped terminals interiorlyand exteriorly placed upon saidcombination of tube and shoe. By thus placing'the pneumatic tube within the rigid exterior folly ofthewheel; I form a circular shock absorblui within the wheel itself, whereby all rebound shock is absorbed at right angles tuits point said distribution of weight to carry my load-- at one-fifth of the air pressure per square inch of tube as found in actual practice compared to the air pressure required to carry similar load upon pneumatic tube.

:placed exterior to its felly as in present practice.

By forming the transverse shoulders in the outer felly, cushioning upon the jttktaposed-contortions of the-pneumatic tube as shown in drawing, I obtain a resisting leverage to-rounteract by the air pressure any unnatural deviation or side-thrust of the.

outer tread in skidding.

'I also call special attention to the fact that by this. novel COIISiZIUCtiOH;111111 enabling the outer tread under speedgtnretain its natural vertical plane of mom mmnn.

leaving .the body member of the'f vheel to instantaneously adjust itself automatically ,with the line. of its axle on striking [chuckholes. or road obstructions without'interrupting the gyroscopic plane of its outer tread periphery.

It will be noted that by a novel construction 'of partingthe pneumatic tube in manufacture for the purpose of vulcanization upon thelmold and by my system of refastening the two ends of the tube, I may by "illlS nm'elconstruction proceed at any time to reopenthe pneumatic tube'for purposes of repair or investigation without inpiring the functions of said tube upon reassen'ibling.

It will be understood thatthc inner tube 12 mas be constructed of any desired nu-aber of layers of fabric and rl'i-tther u'h eji izo may be arranged alternately or'in an y other 7 desired manner, and the driving disks 1 may be constructed in a similar manner as is l'nost clearly seen in Figs. at and 5, from which it will be apparent that the driving rubber and fabric 37* and 38, respectively.

disks 1 are composed of alternate layers oi and that the core 14, preferably of hard rubber, is interposed between the layers of fabric 38 to form the wedge-shaped terminal 11 which forms a continuation of one of the layers of rubber 37". It will be understood that the spokes 1 are secured in any desired manner with respect to a hub 39 of any desired or conventional type. The inflatable tube 12 may also be constructed of any desired number of layers of fabric and rubber and arranged in any desired manner, and in Fig. 4 I have shown the same as consisting of layers of rubber 40 and of fabric 41. It will now be apparent that although I have shown the inner layer of the inflatable tube as being secured to the outer layer of driving disks at the various points of contact, that in the broad scope of my invention the.driving disks and the inner tube may. be entirely separate and distinct and still be within the broad scope of my invention.

It'will now be apparent that I have de-' vised a novel and useful construction of a resilient wheel, which embodies the features. of advantage enumerated as desirable the statement of the invention and the above description, and while I have, in the present instance, shown and described a preferred of said outer felly.

embodiment thereof which has been. found in practice to give satisfactory and'reliable results, it is to be understood that-the salife is susceptible of modification in various particulars without departingfrom the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invent-ion, what I claimas new and desire tosecure'by Letters Patent, is

1. In a v resilient wheel, the combination of an inner felly, an'outer felly having outer and inner portions and recesses in its sides and also having a recess in its inner periphery, and an inflatable tube having an'inflated annular portion interposed between theinner and outer follies, and inwardly directed inflated portions occupying the side recesses of the outer felly, and also having .end portions seated in the recess in the inner Ina resilient wheel, the combination and inner portions and side recesses between the same and also having a recess in its inner periphery, a pneumatic tube having an inflated portion disposed between the fellies and inwardly directed inflated portions dis posed in the side recesses of the outer felly and also having end 'portions secured together and disposed in the recessin the inner periphery of the outer felly, inner'terminals cupyiug said side recesses of said outer felly,

said tube having its outer peripheral ortion split and its juxtaposed end portions secured togethemand seated in said recessin said inner periphery of said outer felly, means for secur ng said tube to said outer felly, side plates having the flaring portions 37,and the inwardly extending flanges 8,-and

fastening devices common to said inner folly and side plates.

5. In a, resllient wheel, an inflatable tube,-

means .fo'r securing the inner periphery of said tube in position, a detachable metal covered telly having annular side recesses forming T-shaped shoulders, at its inner peri hery interlocking with the outer inwar lyf contorted periphery of said tube when, inflated, and a detachable felly.

6. In a resilient wheel, an inner fixed felly, aninflatable tube adapted to seat on said inner felly and having innerterminals, meansforinterlocking said terminals with tread secured to saidthe sides of said inner felly, an outer felly having annular side recesses forming. shoulders contained within said tube and with which saidtube interlocks by air compressionwhen inflated, said tube 'havin' outer terminals adapted. to interlock with the sides of said outer felly, an annular recess 26 in said outer telly; said tube being split 'and having its terminals seated in said recess 26 and secured together, a tread, and

means for securing said tread and said outer terminals with respect to said outer fell 7. In a resilient wheel, an inner fixed fel y an inflatable tube having terminals at ,its

inner periphery, means for securing said terminals with respect to said inner felly,-

said tube having terminals at its outer pe-' riphery, a detachable felly covered with a reinforcing layer, a tread, means for securing, said outer terminals and tread with respect to said detachable felly,the latter bein of an inner felly, an outer felly having outer substantially inclosed within said tube'an adapted to interlock therewith, when inflated. l

8. In a resilient Wheel, an inner fixed felly,

an inflatable tube seated thereon and provided with terminals extending along the sides of said felly, clamping disks 'forinterlocking said terminals with said felly, an outer felly having annular side recesses forming projecting shoulders, the inner peripheries of which are concentric with the an inner fixed felly, anj'outer telly, substantial-ly T-shaped in cross section, driving disks secured at their outer periphery to the outer telly, clamping disks for securing the thereto to form with the sides of the T- shaped, telly juxtaposed annular side Walls for the cushioning of side thrust, annular side plates clamping the outer periphery of said driving disks to said outer felly, a-

tread carried by said outer felly. transverse draw bolts holding the innerelamping disks and 'the inner peripheries of the driving disks in assembled position with regard to the fixed telly, and transversedraw bolts holding the outer annular side clamping plates, and the outer peripheries ofthe driving disks in assembled position with regard to the outer f elly. 5

V CAR-ROLL D. GALVIN. itnesses E. IIAYWARD FAIRBALNKS, C. D. MoVAr. 5

Copies of this patent may be obtained for five cents each, by a\ ressing the Commissioner of Patents.

- Washington, D 0;" i

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