US385058A - Apparatus for removing and setting rolls - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

A W. R. JONES. APPARATUS FOR REMOVING AND SETTING ROLLS.

No. 385,058. Patented June 26, 1888 2 SheetsSheet 2.

(No Model.)

W. R. JONES. APPARATUS FOR REMOVING AND SETTING ROLLS.

No. 385,058. Patented June 26, 1888.

INVENTOR,

WITNESSES.

VVILLIAM' R. JONES, OF BRADDOGK, PENNSYLVANIA.

APPARATUS FOR REMOVING AND SETTING ROLLS.

SPECIfICfLTION forming part of Letters Patent No. 385,058, dated June 26, 1888.

Application filed Aprll -10,l888. ScrialNo.2l0,l38.

To all whom it may concern.-

Be it known that 1, WILLIAM R. J ones, of

the following to be a full, clear, and exact de scription thereof.

The object of my invention is to provide means for the easy removal of rolls from their housings and for resetting them or replacing them with a new set of rolls. This operation must be performed quite frequently in rollingmills, and hitherto it has been the practice to lift the rolls one by one from the housings and to reset themin the same manner. The amount of time necessarily spent in this operation is considerable, and of course until the rolls are altogether removed and the new set placed in position the mill must be stopped. It is to avoid this loss and to effect a direct saving to the owners of rolling-mills that I have designed my present improvement, which has been putin practical and successful use. Instead of removing the rolls singly from the housings, as hitherto, I lift all the rolls with their bearings at once by means of stirrups or frames, which [it underneath the necks of the lower rolls and are elevated by a crane or other suitable lifting device, and having thus raised all the rolls out of the housings I carry them by the crane to a stand or temporary housing, into which they are placed, and from which they may be afterward removed at the convenience of the workmen. Another set of rolls and bearings may then be lifted by stirrups from a second stand or housing in the same way, and having beenv conveyed to a point directly over the roll-housings are low cred into place therein. Insetting the rolls in place for use, instead of setting them one by one in the roll-housings, I first set them with their interposed bearings in the temporary stands or rests. Thcy can there be properly set and adj ustcd while the mill is in operation, so that no time is lost in adjusting the rolls after they are placed in the housings proper of the train. By thus handling the rolls time and labor are saved, to the advantage both of the mill-owner and of the workmen.

I will now describe my improvement with reference to the accompanying two sheets of are. designed to receive rolls together from the housings.

(No model.)

drawings, forming part of this specification, in which- Figure l is a plan view, in diagram, of the rolls, the lifting-crane, and the stands which the rolls temporarily after their removal from the housings or before they are set in place therein. Fig. 2 is a front elevatiouof a set of three rolls, shown as being supported by the stirrnps from the jib of a crane. Fig. 3 is a vertical sectional view thereof on the line a: as of Fig. 2. Fig. 4 is a front view of the stand or temporary housing for receiving the rolls. thereof.

Like symbols of reference indicate like parts in each.

In the drawings, "rolls, which are set in the housings 4 in the usual way, and 5 are the bearing blocks, which are interposed between the necks of the rolls.

The device which I employ for lifting the rolls consists of open frnmes or stirrups, composed of vertical side bars, 11, connected at their lower ends by removable cross-pieces7 and at their upper ends connected bycrosspieces 8. The side bars fit closely to theneeks of the rolls, so that when they are lifted there may not be any danger of their being displaced; and in order to prevent spreading of the side bars during lifting of the rolls I provide the cross-pieces 7 with proicctions orlugs b, which engage the sides of the slot in which the eross-piece fits. ever, be differently. constructed without involving a departure from my invention, the only essential being that they shall be lifting devices which are adapted to iit under the necks of the lowest roll, and thus tolift all the however, to cover specifically the form of stirrups which I show in thcdrawings, since these form convenient means for supporting one or more rolls when being shifted from one place to another.

The carrying device which I show in the drawings consists of a crane, 9, on the jib 10 of which is mounted a trolley, 1l, from which is suspended a horizontal bar, 12.

and support the cross-pieces S.

The mode of operation of my device is as Fig. 5 is an end view,

In liftingthe stirrups the ends of the bar 1.2 fit under The stirrups may, how- I desire,

ICO

are set in place, as shown in Fig. 1.

follows; In order to take a set of rolls from their housings, I first remove the housing-cap anddiseonnect the rolls from their drivinggear, and having drawn back the guide-rests out of the way of the rolls, and having removed the bearing-blocks on the top of the necks of the upper roll, I [it the stirrups to the rolls by adj usting, their lower cross-pieces, 7, to the underside of the necks of the bottom rolls, 3, as shown in Fig. 2. This can-easily be done, because the stirrups, being suspended from the bar 12, can be spread laterally,so that they may be placed on the sides .of the housings, and can then be swung inwardly, so as to fitunder the necks of the ro1ls,-as before explained. In thus adjusting them the crosspiece 7 of the stirrup at the outer end of the rolls need not be removed; but the cross-piece of the inner stirrup should beremoved, in order to clear the driving-connections of the rolls. The stirrups being suspended from the jib of the crane, a vertical motion of this crane will lift the lowest roll 3 from its bearings on the housings, thus raising all the rolls, together with their interposed bearings 5. the housings, the rolls are moved by the crane and deposited in some convenient place. I have provided a convenient and novel device for the reception of the rolls. (Illustrated in Figs. 1, 4, and, 5.) It consists of a stand or temporary housing, composed of separated uprights or end pieces, 13, the bases of which are bolted to the floor ofthc mill. These end pieces are set'at a convenient distance apart -to afford a rest or receptacle for the rolls, the

necks of which project therefrom when they The rolls, when held by the stirrups, are conveyed by the crane to a point directly above one of these stands, and are then lowered into place therein. The stirrups being then disengaged, a new set of rolls may be lifted thereby from another stand and carried to the housings of the rolls, wherein they may be set at once by lowering them v into place therein. By these means I am enabled to remove 'the rolls from the housings and'to replace them very rapidly and with lit'tlelabor. I thus secure the advantages which I have named above. In Fig. l I showthc preferable relative arrangement of the rolls, the crane, and the stands. The crane is rotary on its axis 9, and the roll housings and stands are placed relatively thereto so that the central points of the housings and of the stands shall be equh'listant from theaxis of thccrano. I shop two of the stands thus arranged; but more inay be usedif it is desirable. The advantages of having the housings and stands thus set in a circle ,whoise center is the axis of the crane is that the.

self thereto, since the stands may be otherwise Having been thus lifted entirely out of arranged and other forms of lifting and conveying apparatus may be used instead of the crane.

My invention is applicable both to two and three high sets of rolls and is susceptible of other modifications besides those which I have noted. In connection with the devices which I have described, I prefer to provide the housings with the arrangement of rest-bars and guides which I have described and claimed in a separate application for Letters Patent, filed April 10, 1888, Serial No. 270,239, since Iain thereby enabled without disturbing the rolls to draw the rest-bars out of the path of the rolls and to leave the rolls free to be removed from the housings.

I claim as my invention- 1. An improvement in apparatus'for removing or setting rolls from or in their housings, which consists in lift-ing-stirrupsadapted to engage the lower roll and to suspend the same together with-the roll or rolls above, substaxr. tially as and for the purposes described.

2. An improvementin apparatus for remov- 'ing or setting rolls from or in their housings,

which consists in liftingsti'rrups adapted to engage thcfnecks of the lower roll and to suspend the same together with the roll or rolls above, said stirrups having side bars which constitute a frame inclosing, the necks of the rolls, substantially as and for the purposes described. I

3. An improvement in apparatus for removing or setting rolls from or in their housings, which consists in lifting-stirrups adapted to engage the lower roll and to suspendthe same togethcrwith the roll o: la above, in combination with a stand or temporary housing for supporting the rolls tem mrarily, and a lifting.devicc, such as a crane, whereby the 'rolls are transferred from the housings to the stand or from the stand to the housings, sub stantially as and for the purposes described.

4:. The combination, with roll-housings, of a stand or temporary housing adapted to support the rolls and their bearings temporarily, and a lifting device, such as a crane, for removing the rolls from one to the other, substantially as and for the un-poses described.

5. The colnbinatitm, with roll-housings, of a stand or temporary housing for supporting the rolls temporarily, and a rotary crane for removing the rolls "from one to the other, said housings'and the stand being equidistant from the axis of the crane, substantially as and for the purposes described.

6. An improvement in apparatus for removing or setting rolls, which consists in stirrups composed of open frames'having side bars and cross-pieces at the bottom, said st-irrups being adapted to be suspendml from a crane or lifting device, substantially as and for the purposes described. 1 I

7. An improvement in apparatus for removing or setting rolls, which consists in stirrups composed of open frames having side bars and removable cross pi eccs at the bottom said stir- IOO rups being adapted to be suspended from a ing device, snchfas a ,oranefsnbsfant-lally as crane or lifting device, substantially as and for fand for the purposes described? a IO the purposes described. i I In testimony whereof I have hereunto set my 8. The combination with roll-housings, of hand this 9th day of April, A; D1888. a stand orrest for supporting tl1e,'rolls tempo- WILLIAM. R. JONES. rarily, said stand consisting of separated up- Witnesses: e rights 13, adapted to receive the necks of the THOMAS W. BAKEWELL,

rolls and their interposed bearings, and a lift- W. B. .CORWIN.

Images