US616217A - Rolls for bending structural iron - Google Patents

Description

` No.. slsgzn. Patented non. 2o, |898.

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(Applikation mea .fue 13,1898.)

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ROLLS FDR BENDING STRUCTURAL IRON, PIRE, c.

'(Appucation med .rune 1a, 1895.1 (No Model.) 4 Sheets-Sheet 2.

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No. s|s,2|7. menten-nec. 2o, |898.

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RULLS FURv BENDINGSTRUCTUBAL IRON, PIPE, &c.

(Application filed June 13, 1898. l

(No Model.) 4 SheetsSheet 3.

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No. 6I6,2|7. Patented Dec. 20, |898.

C. WEBER. A

ROLLS FOR BENDING STRUCTURAL IRON, PIPE, c.

(Application med June 1a, 189s., (No Model.) 4 Sheets-Sheet 4.

UNITED STATES PATENT i OFFICE.

CHARLES WEBER, OF PITTSBURG, PENNSYLVANIA.

ROLLS FOR BENDING STRUCTURAL IRON, PIPE, 84.0.-

SPECIFICATION forming part of Letters Patent No. 616,217, dated December 20, 1898.

Application filed June 13, 1898.

To all whom. t may concern:

Beit known that I, CHARLES WEBER, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Rolls4 for Bending Structural Iron, Pipe, and Like Material, of which thefollowing is a specification, referencey being had therein to the accompanying drawings.

My invention relates to certain new and useful improvements in rolls for bending structural iron, pipe, and like material.

The object of my invention is to provide an improved set of rolls whereby any desired curvature of 'structural iron or like material may be attained. f

The invention is designed to be used for the cold-rolling of such material; and it consists in providing a series of adjustable collars mounted upon one or more of the rolls and being of the same relative diameter as the rolls.

It is also an object of my invention to provide movable guides at the rear of the rolls, which are to be engaged by the material pass-v ing through the rolls and which serve to guide and keep the material perfectly true to its p0- sition.

Itis a further object of my invention to provide a holddown in front of the rolls, which after the material has been inserted between the rolls and a desired curvature has been obtained at one point of the materialmay be adjusted against the material to prevent the same radius or curvature being given to the entire strip of the material.

It is also the object of my invention to provide convenient .means for adj usting the rolls, the holddowu or straightening-shaft, and the guides both at the rear and the front of the rolls. These guides are mounted in independent housings,which are adjustable lengthwise of the rolls in order to bring the guides at any desired position. A

With the above and other objects my invention iinally consists in the novel combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings, and particularly pointed out in the claims hereunto appended.

In the drawings, Figure 1 is a side view of a serial No, 683,296. (Nb model.)

set of rolls ora mill constructed in accordance with my invention. Fig. 2 is a front view of the same, partly in section. Fig. 3 is a detail plan View of the split ring or collar which is secured to the adjustable collars. Fig. -it

is a detail plan View of one of the adjustablel collars with the split ring secured thereto. Fig. 5 is a perspective view of one of the fastening-bolts by means of which the adjustable housings are secured in position. Fig. 6 is a top plan view of one pair of the guides, showing the adjusting means for their housings and also a portion of the stationary housings. Fig. 7 is a sectional view of the portion of the bed-plate and showing the adjustable housing in position. Fig. 8 is a perspective view of one of the guide-carriers. Fig. 9 is a like view of the removable plate by means of which said guide-carriers are secured within their housings. Fig. 10 is a plan view of one of the guides, showing the same in its carrier, the latter being in longitudinal section. Fig. 1l is a perspective View of one of the screw-threaded rolls, showing the keyway, the key, and an adjustable and auxiliary collar mounted thereon. Fig. 12 is a perspective view of one of the adjustable collars having secured thereto an auxiliary collar. Fig. 13 is a perspective View of one of the adjustable collars. Fig. 14 is a perspective view of one of the sections of an auxiliary collar, the interior surface being screwthreaded. Fig. 15 is a perspectivev view of one of the sections of an auxiliary collar without its interior surface being screw-threaded.

Like numerals of reference indicate corresponding parts throughout the several views of the drawings.

This invention is an improvement upon that granted to me under date of March 15, 1898, Nos. 600,699 and 600,700, the rolls in this invention being practically of the same construction as shown and claimed in the previous Letters Patent.

To put my invention into practice, l provide two stationary housings 1, which may be of any desired form of construction. Vithin these housings are formed the guideways 2, 3, and 4 for the reception of the journal-boxes 5 6 7, respectively. The journal-boxes 6 receive the ends of the screw-threaded upper roll 8, while the journal-boxes 7 receive the ends of the screw-threaded lower roll 9, the latter being arranged in the housing at the rear of the lower roll 10, which is journaled in the housing in vertical alinement Wit-h the upper roll 8.

Mounted upon both the upper and lower rolls are a series of adjustable collars 11,which are adapted to have secured to either one or both sides thereof a ring or auxiliarycollar 12. This auxiliary collar for the purpose of securing it in its position is made in two or more sections, but preferably the former, as it would considerably simplify the construction thereof. These sections are neatly fitted together, as shown, and are or may be secured to the collars 11 by screws 14 or other suitable means. In practice I prefer to place these rings or auxiliary collars l2 upon the sides of the collars 11, where they may be retained by tapping or other suitable means, and by truing the collars 11 and the auxiliary collars 12 together I thus make the auxiliary collars 12 interchangeable, so that they will t neatly upon anyof the adjustable collars 11. This is done for the reason that the auxiliary collars 12 are made of different di ameters and thickness, so that they can be changed to any collar desired, and providing thereby a means for rolling different sizes of structural iron or the like without any changing of the rolls. The collars ll and the auxiliary collars 12 are each provided on their inner face with a series of notches or grooves 15, which are adapted to receive the key 16, engaging therein and in a groove provided therefor in the rolls. This means is shown as a convenient one for locking the collars 11 in a desired position upon the rolls, though of course other equivalent fastening means may be employed.

The auxiliary collars 12, when mounted upon the shafts between the adjustable collars, serve as a bearing for the edge of the angle when the same is being bent. For example, su ppose an angle of a size four by four inches is to be bent, the adjustable collars would be eight inches from the roll to their outer edge and the auxiliary collars would be four inches in width and fourinches from the roll to their outer edge. Therefore the outer edge of the auxiliary collars would be a bearing-surface for the edge of a portion of the angle which projects downwardly between the space formed between the adjustable collars. Furthermore, the auxiliary collars, owing to their peripheries being the bearingsurface for the projecting portion of the angle, serve to bring the pressure upon the angle while bending at its center rather than on its free end, which then would prevent the spreading of the free end of the angle while the same is being bent.

The rolls 8 and 9, as before stated, are adjustable vertically, this being shown in the drawings as accomplished by means of screws 16 and 17, engaging through the housing and being connected to the journal-boxes 6 and 7. The screw 16 is adjusted from above and the screw 17 from underneath. It will of course be observed that while these adjusting-screws are shown independent of each other they may be readily connected together by mounting bevel-gears on top of the same and connecting them bya shaft carrying oppositely-disposed bevel-gears to engage the aforestated ones. Such a construction is, however, old in the art, and I do not claim same as a part of my invention. The lower roll 10, not being adjustable, may he journaled direct into the two housings 1.

In the journal-boxes 5, which are arranged in the guideways 2, I mount a shaft 18, which may be termed a straightening-shaft or holddown and is adjusted by means of the screws 19, operating in the housings and engaging the journahboxes 5.

For the purpose of guiding the material, both while passing into the rolls and while emerging therefrom, I provide a pair of guides at the front and a like pair of guides at tho rear of the rolls. The guides at the front of the rolls are mounted `in two housings 2O 2U, which rest upon a slotted bed-plate 21 and are secured in the desired position thereon by forming the base of the housings with 'outwardly-extending lugs or anges 22, which are apertured to receive the securing-bolt 23. This securing-bolt is provided with a double head, the portion 24; thereof being smaller than the portion 25, said portion 24 being adapted to slide in the slot of the bed-plate, and the portion 25 being adapted to engage the underneath face of the bed-plate. The bolt 23 may be fastened by means of an ordinary nut 26.

Arranged in the housings 20 are the earriers for the front guides, consisting of a block 27, having projecting flanges 2S for engagement with the outer face of the housings 2O to hold the carriers in position. Formed integral with the blocks 27 or attached thereto is a hollow shank 29, screw-threaded at its outer end to receive the adjusting-screw 30. The guide comprises a shaft 31, the one end of which lits within the block 27 and shank 29 and the other end of which is formed With jaws 32, between which is pivotally secured a roller 33. The end of the shaft 31 which engages in the carrier may, if desired, be connected to the inner end of the screw 30, although such construction is not necessary, as the abutment of this screw against theinner end of the shaft will force the same out wardly of the carrier without such connection. The movement of the shaft 3l Within its carrier is limited by the shoulder 34, formed within said shank 29 at the intersec tion of the screw-threaded portion thereof. In order to allow the placing of these carriers in position, I construct the same with a detachable plate 35, which is of the same length as the block 27 when measured from the outside to outside of its flanges and which fits neatly upon the shoulder 36 formed on the IOO IOS

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inner face of the said block. After the block has been placed in the housing, with the iianges 28 against the inner face thereof, the plate 35 is placed in its position and engages the outer face of the housing, thus holding the carrier in position. When the guides have been adjusted to the desired position, the shafts 3l may be held rigid by means of a set-screw 37, engaging the same through the shank 29 of the' carrier.

At the rear of the rolls I provide a bed-plate 3S, which is of the same form and construction as the bed-plate 2l, and mount upon this bed-plate the two movable standards 39,which, with the exception of their being slightly inclined inwardly toward the rolls, are of the same form as the front movable standards 20. In these standards 39 are mounted the carriers for the rear guides, which are of the same construction as the front guides and are adjusted in the same manner, the same reference-numerals being used for them as well as for the fastening means for these rear standards, which has heretofore been fully described for the front standards.

When the fastening-bolts 23 are loosened, the front standards 20 or the rear standards 39 may be moved longitudinally of the rolls by means of the screw-threaded shafts 40,

which are j ournaled in standards 4l, mounted upon the bed-plates 2l and 3S, and engage through the screw-threaded lugs 42 formed therefor on both the front and rear standards. These shafts 40 may be operated by hand-wheels 43 or other suitable means.

The rear standards 39 are preferably set at the slight angles shown in order that the guides may be in proper position to receive the material passing from the rolls, the end of which at the time of reaching the guides,

owing to its curvature or radius, is considerably above that portion of the material which is passing through the rolls.

The holddown or straightening-shaft 1S is provided for the purpose of forming a portion of the barstraight and another portion thereof at a predetermined curvature or radius, as it will be observed that an angle-iron or other bar of like material could be inserted in the rolls and a portion thereof curved to the desired radius, at which time the holddown or straightening-shaft 1S could be lowered against the bar of material passing through the rolls, so as to hold the same down and decrease the radius being imparted to the bar in its rolling.

In Fig. 2 of the drawings I have shown collars 44 mounted upon one end of the screwthreaded shafts S and 9, each of which collars is provided with a peripheral groove and which may be employed for bending or coiling pipe, as it will be observed that such material can be bent upon my improved rolls in the same manner as structural iron. Coils of pipe may be readily formed upon these rolls by pinching the free end of the pipe previous to the completion of the circle, forcing the said free end to the outside of the pipe as it is passing through the rolls, and thus allowing the coil to be continuous.

By providing the auxiliary collars l2 of different diameters and making the saine interchangeable it will be observed that various sizes of angle, T, Z, or other forni of structural iron or like material may be bent without requiring any changing of the rolls, it only necessitating the adjustment of the collars ll upon the screw-threaded rolls and to place the auxiliary collars in position, so that the two will accommodate the size and style of material being bent.

IVhere one size and style of material is being bent at one point of the rolls and another set of the adjustable collars and the auxiliary collars are set for a different size and form of material, it will be observed that the guides both at the front and rear may be moved so as to bring the same into position for the latter-named material by simply loosening the housings 20 and 39 and adjusting the same in the manner heretofore described.

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

l. In an apparatus of the class described, a set of screw-threaded rolls secured in a housing in vertical alinement, adjustable collars mounted thereon, auxiliaryfcollars formed in sections and secured to the sides of the said adjustable collars, and suitable guides arranged in pairs operating horizontally of the rolls at the front and rear thereof, substantially as herein shown and described.

2. In an apparatus of the class described,the combination of an upper screw-threaded roll suitably secured in a housing, a lower screwthreaded roll secured in said housing in vertical alinement with said upper roll, adjustable and auxiliary collars mounted upon the said rolls, a holddown or straightening-shaft secured in the said housing at the front of the upper roll, and .adjustable guides arranged in pairs at the front and rear of the said rolls, substantially as shown and described.

3. In an apparatus for bending structural' iron and the like, the combination ofahousing having a bed-plate secured thereto, a series of screw-threaded rolls suitably mounted IIO in said housing, adjustable collars mounted upon the said rolls, auxiliary collars mounted upon the said rolls and removably secured to the adjustable collars, a housing secured to the said bed-plate at the front and at the rear of the said rolls, and adjustable guides arranged in pairs carried thereby, substantially as shown and described.

4. In an apparatus for bending structural iron and the like, a central housing having a pair of screw-threaded rolls mounted therein in vertical alinement, a bed-plate secured to said housing and extending outwardly on each side thereof, a vertical housing secured to said bed-plate at the front of said central housing, a pair of adjustable guides carried IZO by said vertical housing, an inclined housing secured to said bed-plate at the rear of said central housing, and a pair of adjustable guides carried by said inclined housing, substantially as shown and described.

5. In an apparatus for bending structural iron and the like, the combination of an upper and lower screw-threaded roll, adjustable and auxiliary collars mounted on said rolls, an adjustable holddown or straighteningshaft and an adjustable housing carrying a pair ol' guides mounted at the front and rear of the said screw-threaded rolls, substantially as herein shown and described.

(i. In an apparatus for bending structural iron and the like, the combination of a housing having a bed-plate secured thereto and extending outwardly on both sides thereof, a set of screw-threaded rolls suitably secured in said housing, adjustable collars having auxiliary collars removably secured to the sides thereof mounted upon the said rolls, and an adjustable housing carrying a pair of guides secured to the bed-plate at the front and rear of the said rolls, substantially as shown and described.

7. In rolls for bending structural iron and the like, the combination of an upper and lower screw-threaded roll, adjustable and auxiliary collars mounted on said rolls, said auxiliary collars being removably secured to the sides of the said adjustable collars, and adjustable guides arranged in pairs at the front and at the rear of the said rolls, substantially as shown and described.

S. In rolls for bending structural iron and the like, the combination of the screWthread ed rolls, adjustable collars mounted thereon, auxiliary collars formed in sections and secured to said adjustable collars, and means for securing said adjustable and auxiliary collars in the desired position upon the screwthreaded rolls, substantially as herein shown and described.

9. In rolls for bending structural iron and the like, the combination of the screw-threaded rolls, adjustable collars mounted thereon,

.auxiliary collars formed in sections and secured to said adjustable collars, lneans for securing said adjustable and auxiliary collars in the desired position upon the screw-threaded rolls and adjustable guides arranged at the front of the said rolls, substantially as herein shown and described.

10. In rolls for bending stru ctural iron and the like, the combination of the screw-threaded rolls, adjustable collars mounted thereon, auxiliary collars formed in section and secured to said adjustable collars, means forsecuring said adjustable and auxiliary collars in the desired position upon the screw-threaded rolls, and adjustable guides arranged at the rear of said rolls, substantially as herein shown and described. y

ll. In rolls for bending structural iron and the like, the combination of the screw-threaded rolls, adjustable collars mounted thereon, auxiliary collars formed in sections and secured to said adjustable collars, means for securing said adjustable and auxiliary collars in the desired position upon the screw-thread ed rolls, and adjustable guides arranged at the front and rear of the said rolls, substantially as herein shown and described.

l2. In combination, a set of screw-threaded rolls having adjustable collars mounted thereon, interchangeable auxiliary collars formed in section of less diameter than the adjustable collars adapted to be secured to the sides of the adjustable collars, and means for adjusting one or more of the said rolls, substantially as shown and described,

In testimony whereof I affix my signature in the presence of two Witnesses.

CHARLES VEBER. lVitnesses:

A. M. WILSON, E. W. ARTHUR.

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