US1875905A - Weldless link and method of forming same - Google Patents

Description

. P 6, 1932- B. YOUNGKEN 1,875,905

WELDLESS LINK AND METHOD OF FORMING SAME Filed May 21. 1929 2 Sheets-Sht 1 c%.6i v

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- WELDLESS LINK AND METHOD OF FORMING SAME I Filed May 21. 1929 2' Sheets-Sheet 2 Patented Sept. 6, 1932 NITED STATS BEN N. YOUNGKEN, or LOS ANGELES, 0ALr enri-IA,w ASSIGNQR r03 TEE nerreimn SUPPLY COMPANY or DELAWARE, or yorug v. a. A; CORPOETEtATI-QN QF DELAWARE wELnLEss LINK AND Mnrrron: or romirlnefsarvrn v Application filed May 21, 1929; Serial na'seaezr.

welded together it has been common practice to forge the apex of the link to the shapedesired. Under heavy strains these elevator links separate at the welded points, making it necessary to form the links a great deal heavier than necessary to support the load because of the weak section formed at the weld.

These elevator links are formed to support a load of many tons such, for example, as to support the load of a drill stem or casing which may be several thousand feet in length. i i

It is the object of this invention to provide a method of forming elevator links which includes the rolling from a solid ingot a substantially cylindrical body formed as a plurality of integral rings connected together by relatively thin webs, cutting the separate rings from the cylindrical body by cutting through the webs, heating the individual rings and shaping the heated rings to the form desired.

Another object of this invention is to provide a weldless elevator link formed as a continuous member shaped from an integral ring and flattened and pointed at its apex by forging.

Other objects and advantages of this in vention it is believed will be apparent from the following detailed description of a preferred embodiment thereof as illustrated in the accompanying drawings.

In the drawings: I

Figure 1 is a diagrammatic elevation of an elevator illustrating the same as supporting a load.

Figure 2 is a front elevation of a weldless V elevator link embodying this invention.

1 Figure 31 is. a sideelevationof' a weldles's elevatorlink embodying this invention.

Figure 4: is an elevation of? a cylindrical nrember'relled' from a solid bodying this. invention.

Figure 5 is a sectional view thereof taken substantially on. the line 595 of'Figure 41. V Figure 6 is a top plan view thereof. vf Figure 7 is a diagrammatic View of'a f ormingot of'steel emembodying this invention.

ing: tool. for use in carrying out the process In carrying out the method embodying'this invention, a solid mgot of steel is; rolled to: form a cylindrical; body including a plurality of ringsa li asii'l'lustraated in-Figures 4, hand 6, separated'by relatively thin: webs 2. The

indivinual'rings. l are: then broken fromthe substantially cylindrical member by breakingtl ron'gh the webs.

- The ringsl aretli'en treated separately heating;the same and then placing the same in ;aformingtooli or machine and, while-hot, forcing. the same'to' the shape shown in F g ure 2, wherein. the sides of" the ring-areallowed to come together toward eaclmotherto the desired? degree", preferably to a greater degree atthe bottom end 3 than at the top end 4.

Any suitable or desirable form of forming tool may be employed such, for example, as I is illustrated in Figure 7 by forming a pair of dies 9 and 10 to the curvature desired at the opposed ends 3and t of the elevator link and connecting these dies together by means of a screw, jack or the like, 11, and placing the combined dies and jack within the peri hery of the ring and expanding the two ies to the desired degree. This will force the ring to assume a form as indicated in Figure 2. After the rings have been formed to the shape indicated in Figure 2, they may again be heated, or while they are still hot, may be forged at the apex to form the flat surface 6 where a pair of links come together within the book 7. When using links in a pair, as 7.

in an elevator, 12, spider, or like construction, it is essential that thls apex be formed substantially as illustrated in Figure 2.

the necessity of Welding the ends of a bar of metal together as Was heretofore the practice, and eliminates the Weak section formed at such a Weld. By forming the cylindrical body containing the plurality of rings, which is herein illustrated in Figure l, which may be any particular member WhlCh'WOllld be most economically formed in a particular rolling mill, a multiplicity of rings are formed in one operation which may be forged to provide the desired pairs of elevator links.

The process of formin I cylindrical body including the multiplicity of rings connected together by relatively thin Webs is a great deal less expensive than it 'Would be to form a single ring, and also insures that the pairs of links When formed will be of a uniform size and cross section.

Having fully described my invention, it is to be understood that I do not Wish to be limited to the details herein set forth, butmy invention is of the full scope-of the appended claims.

I claim: a

1. A method of forming Weldless' elevator links Which includes forging a cylindrical body of steelhaving spaced rings connected by relatively thin Webs, cutting the Webs to form separate rings, and heating and bending the rings to form elevator links.

2. A method of forming Weldless elevator links which includes forging a cylindrical body of steel from a single ingot to forma multiplicity of rings connected by relatively thin webs, cutting the Webs to form separate rings, and heating and bending the separate I rings to the shape of an elevator link and forgingthe apex of theelevator links.

Signed at Torrance, California, this 14th day of May, 1929. V v

' 7 BEN N. YOUNGKEN.

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