US2120806A - Method for making points for the ends of rods and the like - Google Patents

Description

A. W. KEUFFEI..

Filed May 25, 1934 INVENTOR O ADoLF w. KEUFFEL BY CQ ,1M www ATTORN EY June 14, 1938.

METHOD FOR MAKING POINTS FOR THE ENDS OFODs AND THE LIKE Patented June 14, 193s y ,i 2,120,806

UNITED STATES PATENT oer-Ice METHOD FRy MAKING POINTS FOR THE ENDS vOF RODS AND THE LKE Adolf W. Keufel, Montclair, N. J., assigner to Keuffel & Esser Company, Hoboken, N. J., s. corporation ol New IJersey Application May 23, '1934, Serial No. 727,051

f 6 Claims. (Cl. 29-148.2)

This invention relates to c. method for making into a. cylindrical portion 9 with a. frusto conical points for the ends of rods suon as surveyors end Hl... The opposite end Il ls of reduced diranging` poles and the like, Jecolos otos, the legs /ameter to form e, shoulder lll, which is relieved of tripods and similar articles reoulrlne; sharp on the inside otubuler bore lll. l sleeve or and herd points. tube lll of o softer steel receives the end ll of g Heretoiore, polnts for ranging poles, lor lnthe shoe tl and extends to shoulder l2. For constance, have been made by forming o steel tube venience in handling, particularly during menuportlon et the lower end of the pole :luto o te.- lecture, the tube is secured to the shoe, es loy snot Bering shore which ls thus burdened. welding et o few points although, obviously, the

10 The present invention seelrs to prelude c, enero ports may ce assembled with o drive llt or, l E@ end for articles or the clrcrocter deserto-ed ln necessary, een be held together with e, rivet or which eV thinner walled tulouler portion may be' two. y used without sucrltlce of strength; ln velden the The point is theo formed und assumes 'the point moy be readily formed end ls console o shape lllustroted ln Figures 2 und 3 preferably being hardened by o simple swsglug onerotlon byoswoging operation in which the shoe will od- 15 forming the point to the desired shone end just itself ley reason of the hollow `ocre lll and which permits the use ol e. pollu; et u. herder will oe elongated into the desired tapered point materiel, when desired. when subjected to the hammer blows of the swee- Anotloer object of the lnventlon ls to orovlde lng machine. The tapering; shone commences 2o on ellsteel pole 'which shell lle no heerler than preferably e, short distance below the upper end @o e Wooden pole. rlccordlnelf, o tuloulcr pole ls of the tubular shoe port ill so that tlre upper end provided which is corrugated whereby e thinner of the tubular shoe port lil ls cylindrical witlovvolleel tube roer be treed llovlogg the requisite in the telescopios tubular portion lll und su strength., n even stronger section lseorded et tllepetrt Where lt is oleo en oloject of tlre lnventloo to provide the taper begins theo where the shoe port ll g5 lor the e-l'ectlve securing el the point the terminates exactly et the beginning 0l? the M1331?,

' tubular portion et the lower end or the pole. es shown ln lll-ligure Il. Since the tulculor shoe tlois end, the tulouletr end ot" e, Loolnt member or portion tl sres outwardly ln on upwardly dlrecshoe ls telescoped within the tulouletr portion und tion with the end of tlle tubular portion ld or ll the ove'lourine parts are then Shared to o teuer constructed tnereebout, the two ports cre lnter so and are theeby lteloked 'EIHS; Spfsll'-JAQ. locked and Sepgurgtn pyvenedu These and other Qbjefts Off-th@ memmn mld operation effectively shapes the telescopio@ parte the Ineens for their attsmrneut will oe morel c o- 30 mme form even when a corrugated mbe is parent from the following detailed descrlptlon, @M 'nmimgnlm .Bv this method of manufacture, e very superior 35 the invention muy lie realized ln which' hard mint mw be mme by using a high carbon steel for the shoe piece whicla, after being es- Fi urel lsuvie ,l l i elsectl melo ing ghe Shoe andwtueogd befoe SWZ sembled wlth the tune and placed 1n the nesting oven, will become hardened, es is the clleueotering operation forming the point therefrom; A

Figure 2 is a View, also m longitudmm Setion. istie or nigh carbon steel when 1t ls cooling down,

showing the completed point applied to o tubulor @mi @his Will be lomllished e@ the Seme time steel shaft; that the point ls leelng svveged.

Figure 31s s View, ln longitudinal section, slrovv- Slt @umile- Emilion M3 (Figure 3) muy ing e modification of the invention suplico to s celve alle end of e. Wooden lee,r or pole es 45 Wooden pole; shown in Figure 3, or it muy be one end of o Figure 4 is a, transverse sectional View telreu ln steel tube serving as the pole, in which event, lf the plane indicated by the line d-tl of Figure 3, desired, it muy loe corrugated for strength, es

looking in the direction of the arrows; und shown ot ll (Figure 2) whereby e thinner Welled Figure 5 is a transverse sectional view teken lo tube con be used. 5o the plane indicated by the line of Figure 2. Thus a hard steel point is provided which een What may be called the blank from which the be shaped so as to give the leest possible resistshoe ls formed into its final shape (Figure 2) is ance to entry into the ground. It is adaptable illustrated generally at 8, in Figure l. lt is pref for round poles, corrugated poles, for shoes only erebly of cold rolled or high carbon steel turned of wooden rods, such as ranging poles, for shoes 55 2 i 2,12o,soe

of tripods, Jacob's staffs and similar" articles requiring sharp and hard points.

Various modifications will occur to those skilled in the art in the composition, coniiguration and disposition of the component elements going to make up the invention as a whole as 'well as the use to which the point is put and no limitation is intended by the phraseology of the foregoing description or illustrations in the accompanying drawing, except as indicated in the appended claims.

What is claimed iszl. The method of making a hard point for poles comprising forming a shoe part oi steel having a taperingend and the opposite end of reduced constant diameter, inserting the end of reduced diameter in a tube portion oi constant diameter and forming the parts to tapering shape.

` 2. The method of making a hard point for poles comprising forming a. shoe part of steel having a tapering end and the opposite end cylindrical and of reduced diameter and provided with a hollow bore, inserting said portion o! reduced diameter in a cylindrical tube portion and forming the parts to tapering shape. l

a. The manta or making a mrd point :or poles comprising forming a. solid pointed shoe part oi' high carbon steel having a tubular portion remote from the point, inserting the tubular portion thereof in a tube of low carbon steel and 'swaging the -partsto a shape tapering toward the point.

4. The method oi' securing together portions o! a point for poles comprising forming a point portion with an outwardly flaring end and con- Y stricting the end of a tubular portion thereabout.

5. The method of making a hard point for poles comprising forming a shoe part with a cylindrical portion, inserting the cylindrical portion in a tube portion and thereafter forming the shoe part and the tube portion in contact therewith to tapering shape.

6. The method o! securing together portions of -a point for poles comprising forming a point portion with an outwardly flaring end, the diameter of which, proximate the point portion, is less than the diameter of the adjacent portion to deiine a shoulder therebetween and constricting thereabout the end of a tubular portion 4abutting the shoulder.

ADOLF W. KEUM

Images