US227061A - of pittsbueg - Google Patents

Description

R. RUSSELL & H. MCDONALD.v

No. 227,061'.v Patented Apri-l 27, Isso.

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NITE STATES ROBERT RUSSELL, OF PITTSBURG, AND HUGH MCDONALD, OF ALLEGHENY, ASSIGNORS TO PHILLIPS, NIMICK 85 CO., OF PITTSBURG, PA.

FLANGING-NIACHINE.

SPECIFICATION forming part of Letters Patent No. 227,061, dated April 27, 1880. Application filed April 6, 1878.

To all whom t may concern:

Be it known that we, ROBERT RUssELL, of Pittsburg, and HUGH McDoNALD, of Allegheny city, both of the county of Allegheny,

State of Pennsylvania, have jointly invented or discovered a new and useful Improvement in Flanging-Machines; and we do hereby declare the following to be a full, clea-r, concise, and exact description thereof, reference being 1o had to the accompanying drawings, making a part of this specification, in which-like letters indicating like parts- Figure 1 is a perspective view of a machine, illustrating the improvements we have added to a certain class of boiler-head-flanging machines. Fig. 2 is a side elevative of a portion of the same devices, further illustrative of our improvements; and Fig. 3 shows a detached' portion thereof to an enlarged scale.

Our invention relates to certain improvements in the class of machines referred to in Letters Patent No. 166,715, granted August 17, 1875, to R. C. Nugent et al.

In the practical use of such machines it has z 5 been found that the plate which is being flanged, especially if it is very heavy and very hot, is liable to sag down a little, so as to form just outside the end of the lower roll an annular bead, bulge, or projection on the eX- 3o terior base of the Harige. To overcome this difficulty we lengthen the lower roll so that its outer end will extend beyond the outer end of the upper roll a distance equal, or nearly equal'to the thickness ofthe plate to be flanged, 3 5 so as to afford a proper support to the entire plate, and so prevent the sagging action and bulging effect abovealluded to.

We have also found that in some classes of work, and more particularly in making narrow 4o or shallow flanges,it is advantageous to change or vary the length of bite of the rolls. To do this we make the upper roll adjustable in the direction of its length.

We have also found that the quality of the work can be improved by the use of edgingrolls, either fixed or adjustable, arranged to operate on the edge of the ange and give it a nished appearance, and we have accordingly added such edging-rolls. 5o In the drawings, H represents housings of any suitable construction, which may be mounted on any suitable bed or base D. Two rolls,

A and B, are carried on the ends of their respective shafts a and b, and these shafts are mounted in suitable bearings in the hous- 5 5 ings H.

Any known or suitable arrangement of devices may be employed for adjusting the rolls A and B toward or from each other. Gearwheels c c areemployed to drive the rolls, or 6o any other suitable driving mechanism may be employed.

A table, C, is pivoted, as at 1, to arms or brackets r', or other convenient support, and is operated on its pivot by means of a cogged sector, o, as in theN ugent patent, or in other desired way. This table O is used to carry the plate or blank to be flanged. The pivotr or center ot' motion of the table C is located at or near the point ot' bend in the plate, and 7o it' desired this pivot or center of motion ma be made adjustable to or from the rolls. This adjustment may be effected in any convenient way. The construction and operation of this table and its attachments are fully described 7 in the patent above referred to; but we do not limit ourselves to that particular construction, as it is sufficient for the purposes ot' our invention that a table be employed having substantially the same or a similar opera- 8o tion with relation to the tlanging-rolls.

The lower roll, B, is made to project beyond the end of the upper roll, A, by preference, a distance equal at least to the thickness ofthe plate to be flanged. As before stated, the object of thus extending the lower roll is to provide a bearing across the outer face of the ilange and prevent any tendency toward the sagging action referred to. The upper roll, A, is also made adjustable endwise in its bearings, as stated, and this may be efected in any suitable way. Te have shown one arrangement by which this may Jbe eftected.

A lianged sleeve, e, Fig. 2, is arranged on the shaft a, the iiangc-head e ot' the sleeve 95 resting between the inner end of the roll A and the adjacent housing, so as to form in effeet a collar or washer separating the two. A set-screw, s, works throughv a tapped nut or hole in the housing H, and its end is swiveled Ioo or jointed in other convenient way to this eollar or iiange c', so that by turning the screw s in one direction the sleeve c and roll A will be crowded outward; but by turning the screw in the opposite direction the sleeve will be drawn by it inward, and the inner end of the sleeve, bearing against the pin o or other equivalent stop 'on the shaft a, the roll A will also be drawn back. One or both the pinions c c are made broad, so as to' allow for this adjustment. though other known means of accomplishing the same result may be substituted.

Edging-rolls a are arranged on either side of the Hanging-rolls. These rolls are operated by friction, and, as shown, they are mounted. in bearing-blocks h, which are adjustably secured to the beam d, which, in turn, is bolted to the housing H. These rolls n are made of sufiicient length, and are so arranged that the edge ofthe flange may bear against their working-faces when the plate is carried to a vertical position and the tlanging operation is being completed. XVe prefer to make these edging-rolls n adjustable in the same direction as the upper roll, A, and we have shown in Fig. 3 one method by which this adjustment may be effected. In this ligure, li represents a recttangular shank extending back from the block h through a correspondingly-shaped mortise in the beam d, and is thence continued into a screw-stem, h2. A nut, 7c, swiveled in a head or collar, kf, works on this screw-stein, the swivel-head k being bolted to the beam (l, as shown. By turning the nut 7c the roll n may be adjusted in or out, as desired. We also prefer to arran ge lining or packing in the space between the blocks h and beam d, so as to secure a iirm rest for the rolls n, and also relieve the swiveled nuts k of strain. Other known or convenient means of adjusting these rolls may be employed, or they may be fixed and the other parts of the apparatus be so arranged as to bring the edge of the flange against these rolls at the proper time.

The operation of our improved machine is as follows: A plate properly trimmed and heated is centered on and secured to the table C, either as described in the patent above referred to or in other convenient way. The upper roll, A, is adjusted to bear upon the plate a distance equal to the width of the in ner face of the iiange desired, and it is then set down upon the plate by means of suitable adjusting mechanism, and the machine is put in motion. The table O and plate attached thereto are turned upon the pivots r by means 'of suitable gearing' working in the cogged sector 'v until the table O traverses an angle or are of about ninety degrees, so that the plate abuts against the end of the roll A and the body of the plate is, at or nearly at right angles to the rim or iiange, turned between the rolls A B. During this operation the plate is rotated on its center either through the friction of the Hanging-rolls A B or by means such as are described in the said Nugent patent, or in other known way.

llhe operation of the rolls A B in turning,

upsetting, and forming the flange on the rim 7o of the plate is substantially the same as in the machine patented as aforesaid, except that the under roll, B, forms a bearing entirely across the outer face of the iange, making that face smooth and straight without any bulging or beading, and thisA feature we consider a marked improvement, and one very essential to the best working of the machine.

As the table is turned upward in the danging operation the edge of the flange will be 8o crowded firmly against the edging-rolls n, which operate to work in the inequalities and give the iiange a uniform and well-finished edge.

The terms top7 and bottom, as descrip- 8 5 tive of the rolls, are used onlyin a relative sense, and it will be within the present invention to arrange them vertically, or in other desired position, provided the positions of the other devices be correspondingly changed. table may be made stationary, except as a revolving motion may be required in it; and the rolls, Awith the devices immediately connected therewith, may have the rocking mo- Also, the 9o tion herein applied to'the table, so that, in- 95 stead of the table turning on the pivoted center r, the rolls shall turn on the same points from a position in planes parallel, or nearly so, with the table to positions at right angles, or nearly so, thereto. may, in either case, be considerably less than ninety degrees, if a dish-shaped iiange is desired. Also, in the present invention, any suitable central support for the plate we re- And this range of motion roo gard as the mechanical equivalent of the table, and the same is included herein under that name.

WVe claim herein as our inventionl. In a tlanging-machine of the kind herein described, the extension of the lower roll be- 11o yond the end of the upper roll in order to the better support of the plate at the point of bend and prevent the formation of a ridge or bead, substantially as set forth.

2. In a Hanging-machine of the kind herein described, mechanism for adjusting the upper roll longitudinally, substantially as set forth.

3. In a hanging-machine of the kind herein described, the edging-rolls, substantially as set forth.

4. A pair of adjustable edging-rolls, in combination with a pair of Hanging-rolls and a table, substantially as set forth.

In testimony whereof we have hereunto set our hands.

ROBERT RUSSELL. HUGH MGDONALD.

Witnesses J. J. McGoRMIcK, GLAUDIUs L. PARKER.

IZO

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