US1424231A

US1424231A - Resilient tire

Info

Publication number: US1424231A
Application number: US566475A
Authority: US
Inventors: Baumann Emil
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-06-07
Filing date: 1922-06-07
Publication date: 1922-08-01
Anticipated expiration: 1939-08-01

Description

RESILIENT TIRE.

APPLICATION FILED :UNI: 7. 1922.

f l Patented Aug. Il, i922.

zomeg.

ElVl'L BAM'ANN, OF ST. LOUIS, .li/IISSUR.

RESILIENT TRE.

Application filed June '7, 1922. Serial No. 568,475.

i7 10 all whom t may conce/m Be it known that l, Enit BAUMANN, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain nevv and useful improvements in Resilient Tires, oft Which the following is a specification containing a full, clear., and exact description, reference being had to the accompanying drawings, forming a part 10 hereof.

My invention consists in the novel construction and arrangement ot' parts hereinafter particularly described and distinctly claimed.

The object of my invention is to provide an improved mechanical springlilling (or a resilient mechanical insert) for the outercasings of pneumatic-tires; Which shall be simple and durable in construction, as well as of loW cost; and which will taire the place of the innertube ot pneumatic-tires; and Which shall possess the same resiliency as an inner-tube, but be devoid of the disadvantages thereo'i'such as the danger of being punctured, mutilated, or requiring Yfrequent repairs that involve much expense and loss of time.

In the drawings,

Fig. l is a cross-section of the present form of my invention, applied to the usual demountable-rim, and outer-casing, of an automobile Wheel; the section being taken on the line l-l of Fig. 2, but showing the parts greatly enlarged, for the salie ot clearness.

F ig. 2 is a detail side-elevation, partly in section, of a portion oi an aiitomobile-wheel and its tire-casing, having my invention. applied thereto.

Fig. 8 is a detail fragmentary inverted 40 vievv of one of my pistons or plungers; showing the means tor locking same against turnin and iig. a; is a detail side-elevation, partly in section, of one oi' my tread-members and its attached piston or plunger, as it appears before assembling same with other cooperating parts.

The numeral l designates the usual Wooden telly, 2 thespolres, and 3 the hub, of an ordi` 5() nary automobile-Wheel, Whether the same is of the form herein shown, or ot other construction, with either Wood or metal spokes, or (if desired) the said telly may be of metal.

In the ypresent case, have illustrated a metallic-rim 4 on the outer periphery of the said Wooden telly l, and demountable clincherfrings are held in place by the usual bolts 6, for the purpose of holding the tire-casing Y in position; but my invention may be used with other iorms ot rims, such as the ordinary clincher-rini having integral clincher-iianges, and the construction and operation of my invention Will be sub stantially the same in either case.

.The present form 07' t/zfc mec/amical substr'- tuc for nf/watches.

In the present form of my substitute for inner-tubes, I provide a`base-ring 8, of any suitable material. (preferably ot metal), and having such size` that it may be detachably mounted on the periphery or the said Wheelrim a, or upon the outer surface of the telly il, in case `the latter is of metal.

Said basefring 8 is rectangular in crosssection, and is of about half the Width of the said telly l, so there will be ample space on each side ot it, :tor the beaded or clincher portions of the casing 7.

A plurality or multiplicity of pistons `or plungers 9, (preferably at least twice as many of them as there are Wheel-spokes 2), are mounted to slide radially in bearing-nuts l0, Which are provided With screw-threads upon'their outer surfaces, and are screwed into radial internallythreaded holes or seats ll in said base-ring 8.

Each, of said pistons or plungers 9 has, preferably, an enlargement l2 at its outer end, With which is cast integral or fixed thereon a tread-member or tread-engaging section 14, Which is curved in cross-section, as shown in Fig. l, to snugly lit the interior of the tire-casing 7.

The construction and arrangement ot the said ti'ead-members la is such that they overlap the adjacent tread-members and form a continuous support for the tire-casing, throughout the internal circumferencevr oit said casing; the under-lapped portions of said tread-members being formed with a recess or depression l5, to receive therein the overelapped portions; thus obviating any elevation of the overlapped ends beyond the outer periphery `of said members, andronsequent sharp-edgedprojections, which `Would Wear away or cut the fabric or' said tire-casing, and providing a comparatively smooth and regular supporting-surface for said cas ing, throughout the inner circumference of the latter.

50 v the 'plunger-springs, which will noW'he dehers 14E forms closed joints 'betvve'en'the meme' bers, and yet provides for their ready :appli- ,Furthermora such overlapped and recessed construction of the said tread-memcation and removal, as Well as permitting relative yielding movement circumferentially of theW'heel 'tothe'required extent, to

`compensate for the contractionFand-expansion of the tire-casing duringuse. Y

vAs 'previously stated, the said-tread-m'embers 121 lare preferablyfcast' integral' With their respective'rplungers *or radially-mountedl supporting-rodsy ortposts 19 gv the 'po-int at Whichsaidmembers join Itheir saidplungers being preferably at 1a point nearfthe freelend of f the said recessed portion `of leach` 'mem! ber so that said recessed: Qo'rldefpressed) portion of each-member Will-restragainst and be lap iirmlysupported `by `the plunger tolvvhich it is "attaehed,"ivh'ile the opposite (or unrecessed) end of each treadmeinber will overthe -fneXt adjacent recessed portion of J another*treadememberfand"restin contact therewith;- and 'Will he firmly `:supported Lby its post Ior plunger 9.` Fig.v 2.

1 In'other Words, the vsaid loverlapped treadmembers are o-f suiiicient lengthv to reach from one of said postsor'fplungers 9 to the next .adjacent plunger, 'and overlap thesa'me,

`as Well as `overlap the *adjacent 'tread-'memher onone side, and underlap `theF'neXt ad? jaeentftreadmemher on the yopposite side.

Such construction isY very vefficientand durable,l for the reasonthat each treadememoer is thusifprovidedfwith tvv'o postssor ,plurig"e,'rs-9`,` Whichftransmit the "load lor'fweight equal'lyvvto -shoth'ends of the'treadfmemhers, -L and Vmakethe structure 'very' much stronger and morefdurable thanif but 4a singlep-est forv each 4tread-membery Were' provided.

Said plungers or postsl 9 are limited Vin their outward-movement hy pins or lu'gsvl,

which A.project laterally from the inner'ends of said-plungers, and contact Withfthe ad' jacent inner end` of *said 'bearing-nuts 10, in

which *aref preferably formed, Fig. V3, radial grooves 17in Which said-pins or lugs rest,

and act as locks for said -nuts,-to prevent g endsresting fin' contact-withithe Yinner surf face of the'adjaeent tread-member :14, While samefrom turningupon their ep'lungers, exceptf-Whe'n .itis y'desired to tighteniorfloosen scribed.

VAfplunf er-sprng '18"-1is provided for leach of said p ungersf 9, 'to vnormallyhold lthe,

l-atter' (as Welll asssaid tread-members '14) at lthe limitof theiry outwardvmoveinent, Whichis that in-Which-they are shown'in Figsul' and 2.

j '.Inthe presenty form of my' invention, said springs 18- are of the 1 form known :as f coilsprings, andone y"of Vthem is mounted upon each of' saidv` plungers 9, 4with their f outer their inner ends engage spring-seats-On the `outer ends of said hearing-nuts 10.

Said spring-seats may, of course, be of any approved form, but in the present case they vhavea,spring-retaining sleeve 19 projecting outwardly from the inner end of said nuts 10, and extending into said springra short distance, to hold said spring` in proper position.` l u The outer ends of said springs r18 engage said enlargements 12,- -offthe outer endsof said `plungers orposts 9, andare .thushheld in yproper position. A

A A:grease-cup `or lubrieantsreceptacle' "2() is formedfin (ror placed in) the .saidmetallicrim 4- -andiin saidl felly l, at a point'directly oppositethe-inner end of eachofsaidfpis- `tons or uplungers 9, so 'that each -time )the latter arelforced inwardly (While theftire is traveling along a road or pavement) fthe in'nerends of said plungers Willi I"dipf-into the cups, and then be'drawn outivith a supply of grease, which will be distrihutedio the plunger-bore of said bearingnuts10,:a1id will also find its way to ythe-said springs 18 and'alllthe other internal parts ofthe 1de,

vice, andflreep same l-properly greasedsror oiled, and thus also protect from'rustiand corrosion :all Joflsaid `partsVas Wellfas keep them properly ilubricated during use of the tire.

L Itlwill be understood, thatat everyrevolution'ofthe Wheel carrying :the tire,'the said springs 18 Wil-l'becoinpresse'dandffreleasedifalternately, and the saidir=pliingers-9 Will he forced into and Withdrawnfromlthe said greaserups 20 a certain distance; more or\ 'less, .depending upon-the Weight of-"the lo'ad carried by thewtire, at every 'revolution ofthe latter. p

'To prevent the lsaid hase-ring 8 ifrom Vcrawling (either forward 'or backward) upon the said rim 'et and `fe'lly 1, aftrafnsversel key-seat 21 is cutin the inner/.Wall Y.

The operation.

.The .operation 'ofmy invention fis very simple, and Will'he readily understood'hy .y

an linspection of Figs. l and 2, in- Whiclifthe `various parts are: shovvnvin their normal operative'positions. l

It will be seen that when the Wheel carryingtheltirey moves along the roadfthefsaid outer-casing 7 Will :be -fcompressedftvhere sameis in contactwith the road or pavement, and the corresponding tread-members 14 will be forced inwardly against the power of their springs 18, and said plungers 9 will slide in their bearings in said bearing-nuts 10,"until the innner'ends of said plungers dipinto the grease or lubricant contained in said grease-cups 20, and the parts will be thereby thoroughly lubricated, as before described As many as two, and sometimes three or our of said tread-sections 14 and their springs 18, will (at one time) be forced in wardly by the weight of the load carried by the tire.

0f course, the lighter the load the smaller the number of tread-members or sections 14 forced inwardly at one time, vice versa.

The overlapped construction of the said tread-members 14, previously described, causes a number of adjacent tread-members to move inwardly against the power of their springs, in unison, so that each of such inwardly-moved tread-members and their springs act in combination, and thus are enabled to support very heavy loads without breaking or damage to any of the parts of my invention.

I do not limit myself to the exact form and arrangement oi? parts shown in the drawing, as it will be readily understood that changes and improvements may be made by skilled workmen, without departing from the spirit of my invention, and still be within the scope of my claims,

The casing 7, containing my self-contained inner-tube mechanical substitute, may be readily removed from the wheel, for repairs or inspection, by merely removing the nuts from the bolts 6 of the clincher-rings 5, then detaching the one of the latter which is on the outside of the wheel, and then sliding said casing and its contents laterally cti of the wheel rim 4.

Mounting the casing 7 and its contained inner-tube mechanical substitute, may also be easily accomplished, by reversing the demounting operation, just described, and placing all of the parts in the position in which they are shown in Figs. 1 and 2, much in the same well-known way in which a cornmon partially-iniiated inner-tube is irst inserted in the casing, and then the latter is placed in position and secured upon the wheel-rim.

Of course, the mounting operation will be more easily accomplished if but little strain is thrown upon the casing by the springs 18 of the invention, and such strain can be easily regulated while the casing and its contents are oit the rim, by screwing said bearingenuts 10 out or in, as required to throw more or less strain on the side-walls of said casing.

1f said bearing-nuts 10 are moved outwardly, there will be more strain thrown on said casing walls; but if said nuts are movedinwardly a slighter strain or filling7 torce will be exerted on said casing.

In assembling the plungers 9, bearing 7 nuts 10, tread-members 14, and base-ring 8, in the casing (which of course should be done before the device is mounted on the wheel-rim), `the said casing is preferably laid fiat upon a work-bench, table, or the 7` floor, and then the various parts are inserted in the casing, and the tension upon the springs 18 is adjusted, as required, by screwing said bearing-nuts 10 inwardly or outwardly in their threaded seats 11 in said base-ring, after which the casing and the mechanical substitute for an inner-tube contained therein, are ready to be mounted upon the wheel-rim 4, which may be accomplished in the manner previously de- 8 scribed.

A suitable forked screw-driver, or spanner, is to be used in tightening up or loosening said bearing-nuts 10, such tool being engaged in the said grooves 17 in the inner ends of said nuts.

In order to turn said bearing-nuts by means of the tool just mentioned, it will be necessary to first disengage said pin 16 from said locking-grooves 17, which may be done by compressing said springs 18, and sliding said plungers 9 inwardly until said pin is removed from the groove which it previously occupied, when said nuts may be turned, as described, and then relocked by 100 allowing said pin to again occupy the proper locking-groove.

The casing 7 protects all of the parts from rain, mud, sand, snow, and moisture, and

thereby enables their condition to 4be con- 105 tinually first-class.

I claim 1. A mechanical substitute :tor the innertubes of pneumatic-tires, consisting of a base-ring adapted to be placed within the l tire-casing before the latter is mounted on the wheel-rim; a series of sliding plungers projecting radially from said base-ring; overlapping tread-sections mounted on the outer ends of said plungers, so that each of 115 said tread-sections is supported by two adjacent ones of said plungers; and means for yieldingly urging said plungers out wardly, to force said tread-sections into contact with the inner surface of said tire cas- 12o ing.

2. A mechanical substitute 'for the inner-- tubes of pneumatic-tires, consisting of a base-ring adapted to be placed within the tirecasing before the latter is mounted on 125 the wheel-rim; a series of bearing-nuts, having radial bearings, and threaded into radial nut-openings in said base-ring; a series of plungers mounted to slide in said radial bearings, and project outwardly beyond the 130 outer` periphery of said base-ring; means eanried by Jthe outer ends oi'v said plungeis,

`for engagingktlie inner Wall o Vthe tire-eas ing, and suppoi'tingvthe latter; springs restingat their` innenends upon sadbearingnuts, andhavingtheii' outeiI ends in engage.-` mentiwitli said means for engaging the innei Wall of the `tirefcaising; and means for pre-` venting-creepingof seid base-ring upon the Wheel-rim; :whereby all o' the parte above mentioned, maybe bodily mounted upon and detached'fronithje wheel-rim, byva lateral movement up on `the l latter.

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