US870301A - Beveling-machine. - Google Patents

Description

PATENTED NOV. 5.11907.

- 0. E. LINGENFELTER. BEVELING MACHINE:

AYYLIOATI-ON FILED AUG. 22, 1904.

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CARL n. LINGENFELTER, or CHICAGO, ILLINOIS, ASSIGNOR T soULtY STEEL olnoltoiil EANY, or GHIGAGO, ILLINOIS, A CORPORATION.

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Specification of Letters Patent.

Patented Nov. 5., ism.

Application filstl August 22,1902 on2 llo. 22l 683 zen of the United States, and a resident of Chicago,

county of Cook, and State of Illinois, have invented certain new and useful Improvements in Beveling- Machines, of which the following is declared to be a, full, clear, and exact description.

lhe invention relates to shearing machines for beveling the edges of metal plates, bars and the like and in particular to the means for securing the beveling cutter to its shaft. 7

The cooperating cutters oi shears Eor heveling the edges of metal plates, bars and the like are usually mounted upon projecting ends of their operating shafts, which shafts have reduced portions extending through the cutters and heavy nuts threaded uponthe ends oithe reduced portions engage the outer faces of the cutters and hold thenl securely position. Such cutters are usually provided with cutting edges on 'both faces and the nuts hold the cutters reversibly in iilsce soehat either cutting edge may he brought into play. The ends of the shafts and'nuts however, project beyond the outer faces of the cutters in such a manner that angle-bars, particularly those of small Cnension, cannot be properly beveled upon the machine.

The object of the presentv invention is to provide peculiar means for securing one of the cutters to its shaft so arranged that neither the shaft nor the fastening means project beyond the outer race of the cutter, whereby angle-bars may be suitably beveled with the machine.

The invention consists in the features of construction hereinafter set forth, illustrated in the accompanying drawings and more particularly pointed out in the appended claims. I I

In the drawings: Fi ure 1 is a vertical section of the beveling machine to which the present improvement is applied. Fig. 2 is an end view oi the upper cutter shaft and fastening means therefor. Fig. 3 is a section on' line 33 of Fig. 2.

The frame 10 of the machine may be of any suitable construction, but should be of considerable weight as the machine is subjected to great strain. Upper and lower cutter shafts 11 and 12 a e journalcd upon the machine and carry the cooperating upper and lower cutters 13 and 14. he upper cutter shaft is prefer.

ably inclined in position and journaicd in a sleeve 15 15 and counter-shaft ll'are presseo upwuroly an adiustingbolt 22, threaded throughthe our" of the frame portion 16.

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Sleeve 15 is provided with an inner bearing portion 23 and an outer bearing 24 for the upper cutter shsft'll.

bearing 26 for the outer end oi the shaft. The cutter B adjusting the museum cutters 13 and 14 may be brought into proper 'coofgershalts project beyond the outer bearings 24 and 26 and carry the cutters 13 and 14 clear of the frarne and outpresented thereto. The cutters upon the shafts en gage the outer shaft bearings 24 and 26. The rotary cheering cutters l3 and is are disk-shape as shown, and as they are subjected to considerable strain. are necessarily quite thick. Each of thecutters with two cutting edges on opposite sides thereof 13; 13 and 14?, 14'". These cutting edges are formed by grindingend milling the edge portions of the clislo shape cutters. These edge portions are arranged at an. angle to each other and or this purpose the lower shaft is prefcrablyarrangod in horizontal position as shown, and the uppersliaft inclined at the proper angle thereto. The edge portion of the lowermost cutter engages the under face of the work as indicated in Fig. .l, and supports the edge as it is beveled. The

cutter shaft 12 is provided with areduced portion 12 i is provided iorminga shoulder 12 in line with the outer face of the bearing 26. The cutter is held against the shouldered portion 12 by e large nut 28 threaded upon the reduced portion 12 and engaging the outer faces of the cutter. By this means the lower cutter l iis :cmovably held in positiou and maybe reversed when one cutting edge is worn or nicked, to bringthe other cutting edge into play. Heretofore thjupper 'oevelingcutter. 13 has been mounted in 5:. similar Leanne, but the projecting'end of the shaft end the nut mountedthereon; are necessarily large and. heavy and project beyo t the outer lace of the cutter and beyond the cutting edge thereof scthat the edges of engle'borfl, except those of very large size, could I10; be properly beveled, since the portion of the angle-bars not operate upon would strike against theprojecting end of the upper shaft or the nut thereon. r

The present improved means or securing the uplyer cutter in the shaft is shown indotail in Figs. 2 and 3.

The outer end of the upper shaft 11 is provided with a large shouldered portion preferably in the form of a collar29 which may be'constructed in one piece with the shaft, but which is preferably welded upon a reduced end portion 30 of the shaft, as indicated in Fig. 3. The cutter 13 is provided with a central opening 31 within which the reduced end portion 30 of the shaft snugly fits with the cutter abutting against the outer face of the collar 29. This outer face of the collar is so spaced from the end of the shaft, that the latter is substantially in the same plane with the outer face of the'cutter, and does not project to any material extent beyond the same.

The cutter is provided with a circular series of boltholes 32 and 33 arranged intermediate the center opening 31 and its outer cutting edge. These holes are six in number in the form shown, and are spaced apart at regular intervals. I These'bolt-holes are alternately enlarged or countersunk in opposite'l'aces of the cutter. That is to'say, the bolt-holes 32 are provided with countersinks 34 on one side oi'the cutter, while the bolt-holes 33 intermediate the holes 32 are provided with countersinks 34 in the opposite face of the cutter.

A series of screw-bolts 35- cxtend loosely through the bolt-holes $2 in the cutter and are threaded into correspondingly arranged openings in the collar 29. The

heads of the bolts set entirely within the countersinks '34 in the outer face of the cutter and iest upon a shoulder 36 formed by the enlarged or countersunk portion of the bolt-hole. A series of shorter bolts 37 are threaded into the collar 29 with their heads engagingthe outer face thereof and fitting within thecountersinks 34' on the inner face of the cutter. The bolts 35 serve tdsecu'rely hold the cutter upon the end of the cutter- I shaft 11. While the shorter bolts 37 do not assist in. holding the cutter against end-wise movement, they cooperate with the bolts 35to take the circumferential thrust upon the cutter, which of course is the direction in which the greatest strain is exerted. The heads of the bolts 35'-and 37 and the corresponding countersinks 34 withinwhi'ch they fit, are preferably of considerable 'width and cylindrical in form, as shown.

The bolt- holes 32 and 38, which are countersunk on opposite faces of the cutter, are correspondingly arranged so that by removing the bolts 35 the cutter may vbe removed and reversibly secured on the shaft in reeffected by the present improved fastening devices and neither the shaft nor the fastening means project beyond the outer face of the inclined cutter 13 so that, as indicated in dotted lines in Fig. l, the edges of anglebars of anysize may be properly beveled. At the same time, the cutter is rigidly and securely held upon the end of its shaft and the strain thereon properly taken up. The bolts 35 and 37 are of such length that they do not project beyond the inner face oi the collar 29 which bears directly upon the bearing 24. The heads of bolts 35 and 37 are provided with cross slots 38 to receive a suitable tool by which they may be removed irom and placed in position.

it is obvious that the details of construction may be changed without departure from the essentials of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

l. 'lhe combination with the cutter shaft, of a reversible cutter having cutting edges upon its opposite faces, mounted upon the end of s. (1 shaft with its outer face ill Sli llilllllX in the plane with the end face 01". the shaft, a shoulderon said shaft adjacent its end, and bolts relllh\.'llll securing said cutter to said shoulder, the boltho s in said cutter being countersunk upon opposite faces of said cutter to receive the heads of said bolts.

L. The combination with the cutter shaft, of a reversi ble cullcr mounted upon the outer projecting end of said shaft having culling edges upon its opposite faces, a shoul- (l re/l pol-lion on said shaft adjacent its end, a series of boli. holes in said cutter and bolts extending through said holes and securing said cutter to said shouldered portion, some of said lmllZ-lltllGS being countersunk on one face of said cutter and the others upon the opposite face thereof to receive the heads of said bolts, the counter-sinks in the cpposile l'aces being correspondingly arranged.

:l. The combination with the cutter shatt, of a reversl I blc cutter mounted upon the outer projecting end of said slnll't having cutting, edges upon its opposite faces, a shouldered portion on said shaft adjacent its end, a circulnr series of bolt-holes in said cutter alternately countersunk in opposite faces thereof, a. collar on said shaft adjaend of said upper shaft,'a collar on said upper shaft adj-1ru l; its end, and a series of bolts securing said shaft to said collar, pul't oi? the bolt-holes on said cutter being countersunk in one face thereof and part in the opposite fauato receive tne heads of said bolts, the counter-sinks in the opposite faces being correspondingly arranged.

CARL E. LINGENFELTER.

Witnesses ALnnn'r/i A m u ICK, LILLIAN Itmcu'rrcn. i

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