US939714A - Method of manufacturing metal wheels. - Google Patents

Description

G. KOWARSKY. METHOD 0E MANUFACTURING METAL WHEELS. APPLICATION FILED MAR. 5, 1909.

939,71 4. ,Patented Nov. 9, 1909.

@wom/Lto@ @z'gfy wazmj? a. subjectvof the Czar of Russia, residing at wheel showing the body portion thereof coi'- 'description of the invention, such as will 'which are'v cut into body 'portion and rim of the wheel.

invent-ion consists of certain novel features v'View of the same; Fig. 3 is a similar view I.sl'iowing'a cross section of a bai.` rolled to- *form a wheel having a-ianged rim; Fig. 4

:through the wheel as shown in Fig. 6; Fig. f

,Oppositely the rim o s RWM UNiTED PATENT" onirica.A

`@faraoni-f-izowiu'zsmf, or Brea, nussm METHOD or MANUFA'QTURING METAL WHEELS.

To azi whom a may cmi-'CMQ Beit known that I, GRIGORY 'KowARsKY,

Riga, Russia, have invented certainnew and useful Improvements in Methodsof Manufacturing MetalVTheels; and I do declare 'the following to bea full. clear, and exact eiiable'others skilled in the art to which it' appertain's to make andjnse the same. This invention relates-to improvements in the method of manufacturing metal wheels. rllhe object of the invention is to provide a wheel formed from cast steel ingots forged under the hammer and rolled into bars sections of the proper shape, and said sections bent to form the With these and other objects in View, the

of construction, combination and arraii ement of parts,-as will be more fully e-` scribed and particularly pointed out inthe appended claims.4

In the accom any-in drawings, Figure l is a side View ofJ one o the bars from which the wheels are formed showing in dotted lines the manner in which the bar 1s cut for forming 4the wheels; Fig. 2 is a. cross .sectional is a 'side View of one ofthe sectionsI into which the bar, shown in Fig. 1, is cut in the process of forming the wheel; Fig. 5 is. a 'side view of a partly formed wheel; Fig. 6 is a similaryiei'v of the wheel completely formed; Fig. 7 is a 4cross 'sectional View 8 is a similar view showing the manner in Awhich the wheel may be curved or bent; `Fig. 9` is a detail .side view of a portion of a Specification of Letters Patcnt. L Appueatimiea man 5,- isos. seriaiiwo. 481.256

. the drawings.

Patenten Nov. 95 1909.

plain aat rimmed when, while in rig. s the bar is shown as being rolled to forma wheel havinla flanged rim. v

In e process of forming the wheel from thebar l, the latter isy divided lengthwise by a -staggered or' zigzag-cut 4 and'by a series of perforations 5 formed at the apex Iof each pair of the staggered cuts, as shown.

By thus cutting the'bar the .body

ortion or web thereof 1s separated in the orm of a series of substantially triangular sections 6.

After the bar has thus been separated 'each art is cut into suitable lengths and said engths are bent into circular form, which operation willbring the -adjacentedges of 'the triangularly-shaped sections G into engagement, thus forming the body portion of the wheelas clearly shown in Fig. 5 of After the lengths ofthe bar have thus been bent into circular form the meeting edges ofthe .ianged edgel 3 are welded together and thus form the rim of the wheel. l

In the process of bending the lengths of f the bar l to forni the wheel the inner ends of the section 6 are vprojected into a groove `T 'formed-in the outer sideof a cylindrical hub or boss 8 wliich'is' arranged inthe center of the body portion of the wheel as clearly shown Fig. -of the drawing. Thehub or boss 8 is 'formed with a series of radially projecting bifurcated lugs 9 which 'also engage the sections 6 of the bar over the meetling edges of said sections, as shown. The hub and lugs 9 are preferably welded to the 6. but 'may however be riveted or bolted thereto to irnily secure the inner ends of the sections in operative position. After the wheel has thus been formed the sections 6 may be bent or curved to provide sections `.a curved wheel, as shown in Fig. 8.` If desired I may pressor otherwise forni in the sections 6 ai series of channels or corruga- Vtions, as shown in Figs. 9 and 10`, whereby the rigidity of the sections and the strength vof the wheel will be increased.

.From the'foregoing description, taken in connection with the accompanying drawings,the construction and operation of the invention will be readily understoodwith'out rel uiring a more extended explanation.

(Fario'us changes" in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacricing any of theadvantages of this invention as defined in the appended.

claims.

I claim as my invention- 1. A method of constructin metal wheels which consists in dividing ai ar longitudinally by a staiggered cut to Aform two men1'A bers, then ben each of said members into circula-r form an -unitin the ends-thereof,

and then mounting a hu on the free .end

of thev cut ortion of each member.

2. A met od of construetinmetal wheels which consists in dividing a ar longitudinally by a staggered cut t0 form tiwo sections each havingsubstantially triangular laterally extendlng vmembers with V-shaped recesses between them, then bending4 each of said sections into circular-form and uniting the ends thereof, and then mounting la hu on the free ends'of the cut portion of' each metal wheels angular members, then bending each o f said members into circular form' and unitin the ends thereof and then mounting a lhu on the free ends of thetruncated triangular members.

4. A method of constructin metalwheels which consists individing a arlong1tud1' na'llyv on a staggered line, then'dividing the s0 cut sections transversely into suitable cular form and uniting the meeting edges' thereof, landy ythen .mounting a hub on the free ends of the cut portion'of each section.

5. A method of forming metal wheels,

-from anged iron barswhichscowts in dividing a bar longitudinally into sectnsby-\/\- a staggered cut, then bending 'said sections into circular shape to form vthe body portion.- and rim of the wheel, and then mounting a l hubat the center of said body portion.

In testimony whereofv I have hereunto set my hand in presence of two subscribing witnesses. l

' Y `(J`rRIGrORY KOWARSKY Witnesses: l

HERNANDO DE Soro, LAt'mANce HILL.

lengths, then bending said lengths into cir-

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