US1742070A - Roll polisher - Google Patents

Description

Dec. 31, 1929. 1

ROLL POLI SHER Filed June 1928 2 Sheets-Sheet l In wen to r L 5. G'ro 0e6 B QM 4015M Attornqy T. s. GROVES 1,742,070

Dec. 31, 1929. T, s GROVES 1,742,070

ROLL POLISHER Filed June 1928 2 Sheets-Sheet 2 Inventor v I Z 5.6 70086) Amrmgy Fatented Wee, Fl, lFHF THOMAS S. GROVES, F LJEJECHIB'URG, ULT-IIENNSYLVANIA ROLL JPOJLISHEl-"t Application filed June 6,

The present invention relates to improvements in attachments for rolling mills and has reference more particularly to aroll polisher.

One of the important objects of the present invention is to provide a device that can be readily and easily positioned on the housing of a rolling mill, and wherein the device includes a polishing stone that is adapted to to engage with the surface of the corresponding roll for making the surface of the roll smooth.

A further object is to provide a roll polisher which includes a fulcrumed lever on which is rockably mounted the abrading element carrying unit, so that the abrading element will be permitted to properly position itself against the surface of the roll during the use of the device.

Still a further object of theinvention is to provide a roll polisher of the above men tioned character which is simple in construction, inexpensive, strong and durable, and further well adapted to the purpose for which it is designed.

Other objects of the invention will become apparent as the nature of the invention proceeds and when taken in connection with the accompanying drawings.

In the acompanying drawings, forming a part of this application,

Figure 1 is a side elevation of the roll polisher embodying my invention, showing the same in use for polishing the rolls of a rolling mill.

Figure 2 is a detail of the abrading element carryinp; unit, parts being shown in section. A

Figure 3 is a sectional view, taken app'ront e0 mately on the line 33 of Figure 2, looking upwardly, and

Figure 4 is a detail perspective view of one of the polishing stones.

In the drawings, wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates generally the housing of a conventional rolling mill, and mounted in the housing are the upper and lower rolls 2 and 3 V respectively. After a certain length of time,

1928. Serial No. 283,33Q.

the rolls must be resurfaced or polished, and heretofore, this polishing has been accomplished by the use of a lever and plank. However, the defects of polishing the rolls in this manner are that the rolls will become scored, and the stone will not remain flat against the surface of the roll. On the other hand, if light stones are used to avoid scoring, the work is too slow for the ordinary mill work. i

lit is therefore one of the principal aims of the present invention to provide a roll polisher that will save considerable time and labor and will at all times be positive and efiicient in its operation, and to this end, I provide an elongated lever 4 that is provided at its inner end with a hook 5 for engagement with a cross rod 6 arranged in the housing 1, above the upper roll 2, whereby to provide a fulcrum for the upper end of this elongated lever. An additional hook 7 is carried by the intermediate portion of the lever 4C for a purpose to be presently described.

Forming a salient part of the present invention is the abrading element carrying unit designated by the numeral 8 and the same comprises a longitudinally curved metallic plate 9 of rectangular shape, the ends thereof being disposed downwardly as at 10 to form stops for engagement with the outer side faces of the abrading stones 11. The polishing stones are secured rigidly on the concaved face of the plate 9, by means of the slidable members 12 that are also curved to conform with the contour of the concaved face of the plate 9.

The intermediate portion of the curved plate 9 is formed with the longitudinally ex tending slots 13 through which extend the bolts 141, the heads of the bolts engaging with the convex face of the plate 9, while the threads extend through suitable openings provided therefor in the respective slidable.

members 12.

A. nut 15 is threaded on the threaded end of each belt for engagement with the concaved .face of each member 12 as clearly shown in Figure 2.

The sides of each polishing stone 11 are tapered, while each stone is curved longitudinally with the convex face bearin against the concave face of the plate 9, so t at the concaved faces of the polishing stones will be exposed for engagement with the roll to be polished. By loosening the nuts 15 the members 12 may be moved inwardly toward the center of the plate 9, whereby to remove worn polishing stones and replace the same with new ones whenever necessary, as'is readily obvious from the construction shown in the drawings.

A head 16 is swivelly associated with the center of the curved plate 9 and this head is formed at its upper end with an eye for disposition within a clevis 17 formed on the lower end of the bolt 18, a pin 19 extending through registering openings formed in the arms of the yoke or clevis and through the eye portion of the head 16 wherebythe plate 9 and the polishing stone carried thereby will be rockably supported in the clevis or yoke.

The upper end of the bolt 18 extends through an opening provided therefor in the inner end portion of the lever 4 and a nut 20 is threaded on the upper ends of this bolt for engagement with the upper face of the lever in the manner as clearly shown in Figure 1, thereby operatively connecting the abrading unit and carrying elements 11 to the lever.

\Vhen the parts are arranged as shown in full lines in Figure 1, it will be readily obvious that when the outer end of the lever 4 is swun downwardly, the polishing stone carried by the plate 9 will be brought into engagement with the upper roll 2 for polishing the same, in the manner well known in the art, and by rockably mounting the abrading element carrying unit, the polishing stones will automatically position themselves against the surface of the roll to be polished.

In polishing the lower roll 3, the lever 4 is disengaged from the rod 5, and is reversed, as indicated by the dotted lines in Figure 1 and then the hook 7 engages with the rod 21 arranged at the lower portion of the housing 1 and this will provide a fulcrum for the lever so that the abrading stones may be brought into engagement with the roll 3 and by manipulating the lever, the concaved faces of the polishing stone will be brought into contact with the roll to polish the same in an obvious manner.

It will thus be seen from the foregoing description, that I have provided a roll polisher that will, at all times, be positive and efficient in its operation and by reason of its simplicity, the same can be readily and easily attached or removed from a rolling mill, without necessitating any alterations. Byalso employing the slidably adjustable members 12, polishing stones of various sizes may be mounted on the plate 9 and held thereon in a rigid manner.

A polisher of this character will permit coarse abrading material at the forward end for speedy grinding, and finer at the rear to reduce the score marks and procure a smooth finish. When pressed against any cylindrical object the polisher becomes automatically adjusted to the surface. It is to be understood that any alterations that permit the same'automatic movement, any variation in size, shape and arrangement of parts, and any diverse method of application may be resorted to without departing from the spirit of the invention or the scope of the appended 0 mm.

Having thus described my invention, what I claim as new is:

A roll polisher comprising a lever adapted to be fulcrumed upon a roll housing, a curved plate, a head swivelly connected to the central portion of the plate, a yoke carried by said lever, said head being rockably mounted in said yoke, a pair of polishing stones provided with concave and convex faces, the ends of the curved plate being disposed laterally for engagement with the outer sides of the polishing stones, members slidable on the concaved face of the plate to rigidly secure the polishing stones with their convex faces against the concaved face of the plate, the concaved faces of the polishing stones adapted to bear against the surface of a roll when the lever 1s swung in one direction.

In testimony wherof I atiix my signature.

THOMAS S. GROVES.

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