US851451A - Machine-rolls. - Google Patents

Description

No. 851,451. PATENTED APR. 28, 1907. G. F. STEIBER.

MACHINE ROLLS. APPLICATION FILED JAN. 29, 1907.

a SBEETS-BHEBT 1.

ATTORNEYS 1n: NORRIS PETERS pa. WASNINGYON. 0.1,

No. 851,451. PATENTED APR. 2a, 1907.

- 0. F. STEIBER.

MACHINE ROLLS.

APPLICATION FILED JAN. 29, 1907.

3 SHEETS-BHEET 2.

W/TNESSES I INVENTOH f 1H] EYie'Z'Zer 0O W O A TTOHNE 78 ms NORRIS PETERS ca, WASHINGYON o c No. 851,451. I PATENTED APR. 23,1907.

. 0; P. STEIBER.

MACHINE ROLLS.

APPLICATION FILED JAN. 29, 1907.

. 3 SHEETS-SHEET 3.

W/TNESJSES 2% A TTOHNEYS m: NcRRls PETER: 00., wAsMmaroN, 0v 5.

UNITED STATES Parana orrron.

lVlACHlNE-ROLLS.

Specification of Letters Patent.

Patented iaprii 23, 1907.

Application filed January 29,1907. Serial No 354.705.

To all whom, it I'lL/bl/ con/cent;

Be it known that I, CHARLES Finnnnieir STEIBER, a citizen of the United States, and a resident of the city of New York, borough of the Bronx, in the county and State of New York, have invented new and useful Improvements in Machme- Rolls, of which the following is a full, clear, and exact descrition.

Tns invention relates to machine rolls,

and the object of the invention is to produce a machine of this class which is especially adapted for rolling the parts of metal stair cases. In this connection, the invention is most useful in forming stringers, risers and similar parts having flanges which project in opposite directions.

A further object of the invention is to construct the machine in such a way as to enable it to roll different sizes.

The invention consists in the construction and combination of parts to be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had to the accompanymg drawlngs fornnng a part of this specrheaj tion, in which smnlar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan of a portion of the machine and illustrating the invention; F ig. 2 is a front elevation of the parts shown in "r ig. 1 Fig. 3' is a horizontal section taken on the line 3 3-of Fig. 2; fig. 4 is a vertical section taken through a pair of roughing rolls through which the stringer passes befrre,

reaching the finishing rolls; this view is upon an enlarged scale; and r ig. 5 is an end elevation of a riser which may be rolled bythe i machine.

Before proceeding to a detailed description of the invention, it should be stated that the machine operates upon a blank consisting of a flat strip of sheet metal. In forming a riser from such a blank, the -machine operates, through the medium of roughing rolls,

to form flanges at the longitudinal edges of the strip, which flanges project in opposite directions. From the roughing rolls the stringer passes to the finishing rolls, which complete the bending of the flanges, as will be described hereinafter. found that after ben ,li11g, the flanges tend to return to their former condition, so that it is necessary to bend them beyond a right angle in order that the restitution which takes In practice, it is place in the material will leave the flanges j projecting substantially at right angles from the body of the stringer. The form of the l stringer as it leaves the finishing rolls is illustrated in Fig. 5. After the stringer has l stood for a short while, the flanges will be found to lie substantially at right angles to the body of the stringer instead of in an inclined position, as shown in Fig.

l Referring more particularly to the parts, 1 represents the main frame of the machine, which comprises a lnirizontal frame-plate 2 from which hangers 3 project downwardly so as to support rotatably a main shaft 4. At one end of the frame-plate 2 a supe'rfran'ie 5 is attached by suitable bolts 6, and this sn- 1 perframe comprises uprights or legs 7 conj nee-ted by a bar or beam 3. Near the superl frame 5 upon the frame-plate 2 brackets 9 are provided, which support a horizontal i shaft 10 carrying a roughing roll ll. A short distance below the frame-plate 2, as illustrated in Fig. -'l, a similar shaft 12 is I mounted in a horizontal position, and this shaft is provided with a roughing roll 13. The upper portion of this roll projects through an opening 14 formed in a plate 2, so that its upper face may co-operate with the lower face of the roll ll. The roll 11 comprises a heavy cylindrical body 15 which is provided at one extremity with a projecting head 16, the inner face of which head is formed with an inclined shoulder 17. This body is rigidly attached to the shaft 10 by means of set screws 18, the heads of which are seated in recesses 19 formed in the side of the roll as indicated. It should be understood, however, that the. heads of the set screws lS do not project beyond the outer surface of the roll. The opj posite end face of the body 15 is provided jwith an annular recess 20, the outer face l whereof is threaded as shown. In this recess there is received av threaded sleeve or 1 coupling 21 which is formed near its middle into an enlargement or collar 22. This collar is provided with openings 23 disposed at intervals in order to facilitate the application of a spanner wrench or similar tool to rotate the sleeve. The end of the sleeve rej mote from the body 15 is also threaded extern-ally, but the threads of this end are of j an opposite character from those at the other end, one being right while the other is a leftl hand thread. Upon this end of the sleeve l there is mounted a sliding head 24; this head is adapted to slide upon the shaft it), and is JlO ; by means of set screws 27 similar to the set overhanging guide rib 44, which projects over the edge of the roll 39. These rolls 33 and 39 are fixed that is, they are not adjustable. Substantially opposite the adjustable ends of the roughing rolls, I provide adjustable or movable finishing rolls 45. These rolls comprise a roll 46'which is rigidly attached to a vertical spindle 47. The upper end of this spindle is rotatably mounted in a bearing 43 formed on an adjusting block or intended to be adjusted toward or away from the body by rotating the sleeve 21. The outer face of this sliding head. at the outer edge is formed with-a bevel or inclined face 25, for a purpose which will appear hereinafter.

The roll 13 is very similar in construction to the roll 11; it comprises a cylindrical body 26 which is rigidly attached on the shaft 12 screws 18, and received in recesses 28 in a similar manner. The outer or end face of the body 26 is provided with a bevel or inclined face 29 at its outer edge which lies opposite to the inclined face 17 of the roll 1].. The opposite end of the body 30 is provided with an annular recess similar to the annular recess 20, and this recess receives a threaded sleeve 31 similar to the sleeve 21. This sleeve 31 connects a sliding head 32 by means of threads formed on the opposite end of the sleeve, and this sliding head is similar to the head 24, except that at its outer end, the head 32 is enlarged to present an inclined shoulder or face 33, which lies opposite to the bevel face 25. Near its middle point, the sleeve 31 is provided with an enlarge ment or collar 34, which is similar to the coll lar 22 described in connection with the roll 11. hen the rolls are mounted in the machine opposite to each other, as indicated in Fig. 4, a gap is formed. between their adja cent faces through which the blank is made to pass. By means of the inclined faces 29 and 33 at the ends of the rolls, which co-operate with the inclined faces 17 and 25 respectively, the edges of the blanks are bent or formed into inclined flanges. In order to form longitudinally disposed beads on the riser for ornament, one of the rolls is .provided with circumferential ribs 35, and these ribs are adapted to project into circumferential grooves 36 formed in the opposite roll. Evidently, as the blank passes between the rolls, a bead will be formed by the ribs.

The construction and operation of the finishing rolls will now be described: These rolls are formed in pairs, which operate respectively upon the flanges which are formed by the ends of the roughing-rolls. These finishtion desired. ing rolls comprise a pair of fixed rolls 37,con The lower portion of the spindle 61 is rosisting of a roll 33 and a roll 39. The roll I tatably mounted in abearing 68, which bear- 38 is carried upon a long vertical spindle 40, ing is attached, by a universal connection or the upper end of which is rotatably mounted l ball joint 69, to a horizontal bar 70. This in the beam 8, and the lower extremity of l'bar 70 is bifurcated through the principal which passes downwardly through the main I portion of its length so as to support two parframe and is driven by means of bevel gears allel forks 71, the extremities whereof are 41 from the main shaft 4. The roll 39 is cari threaded and pass through the left-hand upried on a stub shaft 42 which passes through j right 7, being rigidly clamped thereto by the main frame and is driven by means of f nuts 72 which come against the opposite faces gears 43 from thespindle 40. The faces of of the upright, as indicated. Between the the rolls 33 and 39 are beveled, as shown, and I forks 71, the aforesaid main spindle passes, lie close together in such a way as to form an and below the bearing 63, the spindle 61 is inwardly bent flange. The upper face of the provided with a roll 73, and this roll lies oproll 38 is extended laterally so as to form an posite to the roll 46, as shown. These rolls ed in a guideway which is formed in the beam 8, as illustrated. The lower end of the spindle 47 passes downwardly through a slot 51. formed in'the frame-plate 2, and passes through a box or bearing 52 which is adjustably attached to the under side of the plate 2 by means of set screws 53, the said set screws 53 passing through adjusting slots 54 as shown.

The lower end of the spindle 47 is provided with a bevel gear 55 which is driven by a bevel gear 56 attached to the main shaft 4 by a set screw 57. The bearing 48 is rigidly attached in the block 49 in the manner illustrated in. Fig. 3; that is, by means of a bolt 53 which passes through to the back of the block and is provided with a clamping nut 59 as shown.

In the lower side of the beam 8 a slot 60 is formed through which the spindle 47 passes as shown. The spindle 47 may be consid ered as a main adjustable spindle. Mounted opposite to the upper portion of this spindle I provide an inclined or auxiliary adjustable spindle 61. The upper end of this spindle is rotatably mounted in a bracket 62, which bracket is secured on the face of the slide or block 49 by means of a pivot bolt 63 which passes through the block and is held thereto by means of a suitable nut 64 as shown. The bracket 62 is formed with a laterally projecting wing 65, which wing is provided with a curved slot 66, said slot beingdisposed circumferentially about the axis of the pivot bolt 63 as a center. The slide or block 49 is provided with a clamping bolt 67 which passes through this slot and enables the bracket to be clamped in any angular posislide 49, the said slide being slidably mounthave beveled faces which are disposed slightly apart in such a way as to form a flange upon the riser 74 as itpasses between the rolls, as indicated in Fig. 2. This flange will bebent inwardly, as shown. rotary motion. is communicated to the spindle 61 from the spindle 47 through the medium of bevel gears 75 and 76, which are carried respectively by the spindles 47 and 61. The hubs of these bevel gears are provided with set screws 77 which render them adjustable longitudinally upon the spindles, for a purpose which will appear.

To return to the description of the slide block 49, I provide, at one end thereol, an adjusting screw 78, the inner end whereo'l is formed into a head 79 which engages the slot 80 formed in the block, as indicated. This set screw 7 S is mounted in the end of the beam 8, so that when rotated by means oi the hand-wheel 81 which it carries, the block may be advanced or drawn back in the guideway.

The riser 74 is illustrated in Fig. 5. The flanges 82 of the riser incline inwardly somewhat as shown, when the riser leaves the machine. This arrangement is adopted because it is "found that as the l'inishin g riser stands,

the material tends to move back to its original condition, so that eventually the flanges 82 will stand substantially at right angles to the body of the riser. At 83 the beads are represented which are formed by means ol" the ribs 55, as suggested above.

The roughing rolls are driven from a gear wheel 84 on the end of the main shaft 4, which gear wheel meshes with a. gear wheel 85 on the shaft 12, and this gear wheel, in turn, meshes with a similar gear wheel 86 on the shaft 10. course, that the gear wheels 85 and 86 are of equal diameter, so insure that the peripheral speed of the roughing rolls will be the same -tor both rolls.

The mode of operation of the machine will now be described.

The roughing rolls 11 and 13 are adjusted by means olthe sleeves 21 and 31 so as to give the finished stringer the desired depth. The 'fii'iishing rolls 52 are then adjusted into alinement with the edge of the stringer which comes from the adjustable ends of the roughing rolls. In order to accomplish this, the adjusting screw 78 is rotated in and out by means of the hand-wheel S1, and the adjustable bearing 52 is adjusted into proper vertical alinement with the bearing 48 and clamped in position by the bolts 53. It' the required adjustment is toward the left, the nuts 72 will be rotated so as to advance the forks 71. toward the left. In this way the adjusting bar 70 is made to hold the bearing position ol said inclined spindle, a roll carried 68 in any desired adjustment with respect to the spmdle 47. In this manner the face of the roll 73 can be nicely ad usted with re- It should be understood, of

spect to the face ol the roll 46. Any angular adjustment which is desired ol' the spindle (")1 may be brought about by rotating the spiudie on the axis ol' the bolt 63 all'erloosening the clamping bolt 67. On account of the universal joint 69, the bar 7 O operates to hold the bearing 60 in the proper relation l'or the spindle. With the linishing rolls adjusted into the proper position, the blank is passed through the rolls in the manner illustrated in F 2. The flanges are partly lormed or bent by the roughing rolls, and the job is completed by. the -finishing rolls. It should be understood that the changes in the angular adjustment between the spindles 47 and 61 are very slight, so that the bevel gears 75 and 76 are not thrown out of ellicient mesh. If they should be thrown too great a distance apart in making the :uljustmeut suggested, they may he slid upwardly on the spindle un til they come more completely into mesh.

While I have described only one pair of roughing rolls, where the material operated upon is unusually tough or heavy, I may provide a plurality ol rolls similar to these described, but the ends of which are termed with beveled or inclined laccs increasing progressively, so that as the blank passes through the machine, the llangcs are bent by degrees, toward the l'orm which they should have before they pass into the bushing rolls Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a machine of the class described, in combination, a frame, a vertical spindle adjustably mounted therein, a roll carried by said spindle, a second spindle disposed in an inclined relation with respect to said -lirst spindle, a roll carried thereby co-opcrating with said first roll, an adjustable bracket supporting the upper end of said inclined spindle and allording means lor adjusting the inclined position thereof, an adjusting bar disposed near the lower end ol said inclined spindle, a bearing for the lower end ol said inclined spindle, and a universal connection between said bearing and said adjusting bar, said adjusting bar being mounted in said frame.

2. In a machine of the class described, in combination, a l'rame having a guideway formed in the upper portion thcrcol, a block slidably mounted in said guidcway, a spindle, a bearing for the upper end ol' said spindle and carried by said block, means for adjustably supporting the lower portion ol said spindle, a roll carried by said spindle, a second inclined spindle, a bearing l racket supporting the upper extremity thereof and attached to said block, means l'or adjusting said bearing bracket to change the angular by the lower end of said inclined spindle and co-operatmg with said lirst roll, an ad usting bar mounted in said frame, a bearing having i body of said sleeve between said body and a universal connection with said bar and rosaid head being depressed below the surfaces tatably receiving said inclined spindle, and 1 thereof. means for driving said spindles. In testimony whereof I have signed my 5 3. In a machine of the class described, a name to this specification in the presence of [5 roll consisting of a body and an'adjustable y two subscribing witnesses. head, said body and said head having inter- CHARLES FRIEDRICH STEIBER.- nal threads of an opposite character, and an adjusting sleeve connecting said body and 1c said head and engaging said threads, the

Witnesses EDWARD ScHoPPE, ANTON HALOR.

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