US1991689A - Method of making quoits - Google Patents

Description

Feb. 19, 1935. MGCLINTOCK 1,991,689

THOD OF MAKING QUOITS Filed June 22, 1932 l 2 llll Patented Feb. 19, 1935 Y UNlTED STAT 1 METHOD 'HOF MAKING Q ins I Arley D. McClintock, Nescope mPa.

' Application June 2;, 1932,'Serial No'. 618,748

This invention relates toouoits'fandhas gener-' Figure 1 is an elevationof a bar or blank of ally in View toprovide an improved q'uolt and a metal'from which the quoits areformed. j novel method of producing the same; l

Heretofore, most commercial quoits. have been cast from iron orsteeLas this hasproved tobe the most economical production method permitting theirsale at what is generallyconsidered a reasonable price; Qn [the other hand, higher grade, higher priced quoits are, insome instances,

' hand forged and in other'instancesj'machine turned from steel bars.

j 'Cast' quoits, while capableof being produced economically, are 'not satisfactory. in use. They are brittle evenwhen cast from malleable iron and they soon" becomegchipped, dented and slivered. Moreover, they are easily broken and.

frequently" break in use. I

Hand forged quoits are never entirely'uniform either in size or 'weight. .Moreover, their cost is relativelyhigh, and sincethey areformed from bars bent to shape and welded at their ends they tend to crack and open at the weld.

Machine .turned quoits, on the other hand, while satisfactory in use, are entirely too expensive to produce to be practicable from a commercial standpoint.

Accordingly, a special object of the present invention is to provide a quoit which compares favorably with cast quoits as to: production cost, and

which eliminates the disadvantages of cast quoits and retains the advantages of the higher priced hand forged or machine turned quoits. That is to say, while the present quoit is of comparatively low production cost, (being either a drop-forged or pressed-product) it is devoid of welds, has little or no tendency to crack 'or break despite the harshest usage, is not easily dented and does not chip or sliver in use.

Anotherspecial object of the invention is to provide apractical method of producing the present drop-forged or pressed quoit economically and in such manner that it possesses the advantages set forth.

appended claim.

In the drawing, wherein like characters of reference denote corresponding parts in the different views:-

Figure 2 is an elevationillustrating the first step of the method. j

Figure '3 is an elevation illustrating the second 5 stepof'the method. j

Figure 4 is a sectionalview illustrating the third step of the method. I j

Figure 5 is a sectional View illustrating the" fourth step of *the method. I I

"Figureo is a sectional'view illustrating the fifth step of the method and the fi'nished quoit; and Figure '7 is a plan view of thefinished quoit.

Referring to the drawing in detail, particularly to Figs. 6 and '7, it will be observed 'that'the' present quoit is, in general, of conventional de sign in that it is in the form of a metal ring 10" of greatest thickness adjacent to the central hole 11 therein and tapered outwardly to a relatively thin edge 12, but that it is a departure from standard quoit structural design in that its bottom face 13 is fiat and inclined upwardly and inwardly, in that its central hole 11 is defined medially by a vertical wall 14 which is rounded outwardly at its top and bottom as at 15 and 16,- respectively, into gradual merger with the top and the bottom quoit faces 17 and 13, respectively, and in that its top face 17 has a pronounced convex curvature.

As'a'resultof the upward and inward inclination of its bottom face 13 the present quoit has a pronounced tendency when tossedin the usual manner and upon striking the ground to enter the ground at its forward edge and therefore to remain in the position where it strikes the ground rather than to slide, even though the quoit may be disposed practically horizontally when it strikes the ground. On the other hand, due 1 to the rounding or convex curvature of the upper face 17 thereof the quoit when inverted and tossed has 40 little or no tendency to remain in the position where it strikes the ground,but has a distinct tendency to slide or roll, which, of course, is quite advantageous under certain condidtions in pitching the game of quoits. Moreover, due to the wall of the hole 11 being vertical except when it is rounded at itstop and bottom corners to afiord comfortable finger engaging surfaces and to avoid sharp corners which might be likely to chip or sliver, the greater mass of metal of the squeezing the metal ofthe blank into a relatively. thin w,eb .26-extendingacross the partly formed present quoitis notched at its edge, as at 18, for finger engagement, and is provided with suitable means for identifying it with its mate, this last named means consisting, for example, of a recess or recesses 19 suitably formed in the upper side of the quoit during manufacture thereof.

pressed to approximately finalshapebetweena' pair of dies 24 and 25 as illustrated in Fig. 4. In this connection it will be observed that the dies arepartedalong the line of the outer edgev of thequoit and that they arev formed with central projections. 24f, 25,-respectively, .which serve to shape the'c'e'ntral portion of the quoit and partially toiorm the central hole 11' therein by hole, approximately midway between the top and the bottomfaces of the .quoit.

Following the drop forgingorpressing operation, which leaves the web 26 .rem'aining.inthe partially. formed hole. 11, and which. usue illy leaves a fin or flashing indicated at 27 in Fig. 4, projecting. from the outer edgev ofv the quoit where the dies are parted, the Web 26 is punched, 'cut or otherwise suitably removed from the hole 11 and the finonflashing :27 issheared ofi. The rough surfaces remaining where the web andthe flashing are removed thenare' ground or otherwise trued and finishedandthe. quoit is completed by sadvantages'ineuse.

grinding or otherwise forming the notch 18 and the identification mark or marks 19 therein. .It

formed during the drop forging or pressing operation to be subsequently finished by grinding, and i I v the upper die may be provided with either a sultable projection ordepression to form a raised or depressed identification mark on the quoit dur-' ing drop-forging or pressing of the same.

The completeddrop-forged orpressed quoit is strong and durable and lis'not easilywcrackedg' broken or chipped. Moreover, it is of compare- .tively low production cost and due to its peculiar structural shape has the previously mentioned Without further description in -the form, proportion and minor details-of construction may be resorted to, withoutdepartingIfromthespiritofrthe inventionand scope.o{, the appended'clairmf ff "The method .ofmaking f orgedzquoits which consists of cuttingase'gtion' from abar of strip ,openhearth steel stock of suitable thickness it is thought that 1 the features and-advantages of the invention will .be.readily apparent-fto those'skilled in the art,

and it will of course be understood that changes desired, however, the notch l8'may be'partially' to provide a'blank,;roughl yforming the'saidblank into substantially disk form, heating the fblank',

subjecting the heated blankltd-pressurebetween dies simultaneously toforinlthfbotly .ofthe qllbit 1 V final shape by die squeezing the metal intofthe bo'dyand partially forminga jcentral hole', fthus 1 leaving a central webremo'ving the web froni thefcenterof theformed bddyi renio viing the ex cess metal from amen meperipheral edge or the formed quoit 'bodyg a'nli' thengrindingawai. l

anyiremainingportions the web and peripheral J metal. V I JABLEI-D-QMCCLINTOCQ

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