US668688A - Rolling-mill housing. - Google Patents

Description

llo. 663,588. Patented m; 26, mm.

E. L. MOGKRY; ROLLING mu. "6115016.

(Application fllsd Dec. 18, 1900.)

(lo Iodol.)

ATTORNEY.

EUGENE L. MOGARY, OF PITTSBURG, PENNSYLVANIA.

ROLLING-MILL HOUSING.

SPECIFICATION forming part of Letters Patent N 0. 668,688, dated February 26, 1901.

Application filed December 13. 1900. $erial No. 39,802. (No model.)

To all whmn it may concern.-

Be it known that I, EUGENE L. MCGARY, a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Rolling-Mill Housings; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to housings for rolling-mills, an d has for its object a novel means for securing the housing to the bed-plate.

In the ordinary construction of rolling-mill housings and their supporting bed-plates it is customary to provide the bed-plate with a channel or'recess and to use two or more bolts, one end of which is provided with a hook or T-head which fits into the channel or recess in the bed-plate, and the other end of the bolt is provided with an ordinary threaded nut, the bolt passing from the bed-plate through the foot of the housing and having the nut screwed on the upper end thereof, whereby the housingis clamped firmly to the bed-plate. It is frequently necessary or desirable to remove the housings from the bed-plates and secure others thereto. When such change is necessary, it requires considerable time to remove the nuts from the foot-bolts, so that the housings can be lifted off the bed-plate. Moreover, as these foot-bolts are usually below the mill-floor level and in contact with Water-scale or other refuse the nuts soon become damaged, making it difficult to remove the same. Furthermore, when the nuts are removed they frequently become lost or misplaced,whereby a further loss of time results. Another objection to the present form of footbolts is that the slot, recess, or hole which is provided in the bed-plate to receive the bolt becomes clogged up with scale and dirt,which makes it extremely difficult to remove or replace these bolts.

It is the object of my invention to overcome these objections; and to this end I provide means for securing the housings to the bed-plate, which will permit the housing'to be quickly removed and another put in its place, which will eifectually secure the housing to the bed-plate, and in which the liability to misplace or lose any of the parts'is obviated. To this end I provide a swinging bolt, secured to the bed-plate, preferably by being pivoted to the same, said bolt having at its outer extremity a projection or enlargement, preferably a nut, between which projection or enlargement and the foot of the housings a suitable gib or washer is placed, the foot of the housing being provided with a slot, through which the foot-bolt passes. By merely removing the gib or washer sufficient clearance is secured to permit the bolt being swung outward to clear the housing, so that the latter can be readily removed and another one put in its place.

In the accompanying drawings, Figure 1 is a side elevation of a rolling-mill housing, showing my improved means for fastening the same to the bed-plate, the latter being shown in section. Fig. 2 is a sectional plan view of the same. Fig. 3 is adetail side view, on an enlarged scale, of a portion of the bedplate and the swinging bolt. Fig. 4 is a plan view, on an enlarged scale, of one form of removable washer or gib. Fig. 5 is a similar view of another form. Fig. 6 is a plan and side view of still another form of removable washer or gib, and Fig. 7 is a sectional view showing a wedge-shaped gib or washer.

The rolling-mill housing is shown at A, the same being provided with the feet or projections A, which rest upon the top of the bedplate B. The sides of the bed-plate are provided with the lugs or webs 0, between which are secured, as by means of the hinge-pin D, the lower ends of the foot-bolts E, which in the specific formillustrated are screw-threaded at their upper ends and have working thereon the nuts F, which are provided with the arm or projection F. F and the upper surface of the housing-feet A is the displaceable washer or gib G. This washer or gib in the form illustrated in Figs. 1 to 3 comprises a bar having the arms G G which straddle the bolt E and is provided at its outer end with a perforation, through which passes a suitable machine-screw H, whereby the gib or washer is pivoted to the foot of the housing. The feet of the housing are provided with the outwardly-opening slots I, through which pass the hinged bolts E.

In the use of my invention when it is desired to remove the housings it is merely nec- Between the nut essary to strike the arm or projection F of the nut F with any suitable instrument, thereby loosening the same slightly and permitting the gib or washer G to be displaced, as by swinging it about the pivot-screw H. This gib or washer is of such thickness that when itis removed ample clearance is afforded to permit the foot-bolt being swung outward out of the slot I clear of the housings, when the housing can be removed and replaced by another, when the hinged bolts are again swung into a vertical position into the slots 1, the gib or washer G swung into place, and the nut F given a partial turn to tighten the same. It therefore becomes unnecessary to remove the nut F from the bolt, thereby saving considerable time and inconvenience in making the change and also preventing the misplacement or loss of the nut. The gib or washer G being secured to the foot or housing cannot be misplaced or lost.

In Fig. 5 I have shown a gib or washer K, the same comprising a flat plate provided with the arms K K at one end, which straddle the bolt E, as will be readily understood, the washer being provided at its opposite end with the elongated opening L, through which passes the machine-screw H for securing the same to the foot of the housing. The slot L permits the gib or washer being moved toward and from the foot-bolt E in a longitudinal direction, as will be readily understood. The function and operation of this form of washer are exactly the same as of the washer G in Figs. 1 and 3, the only difference being that instead of swinging about the pivot-screw it slides longitudinally thereon.

In Fig. 6 is illustrated a further modified form of gib or washer, the same comprising an elongated washer M, having a slot or opening N therein, through which passes the footbolt E. The washer M at one end is of suitable thickness to provide ample clearance for the nut F when the washer is displaced, but at its opposite end it is formed thinner, as at M. In use this washer is placed over the foot-bolt E, the thickened portion of the same being interposed between the foot of the housing and the nut F. The washer is displaced by driving the same endwise, whereby the thick portion of the washer passes from in under the nut, but the washer is held from displacement or loss by the thin end portion M.

It is obvious that many other changes in the form and arrangement of the parts of the device may be made without departing from the scope of my invention, as stated in the claims. Thus it is possible to construct the washer or gib so that it is not attached to the housing, but can be entirely removed therefron1as, for instance, providing a flat plate with two arms or projections which straddle the foot-bolt in the same manner as the arms K K Fig. 5, straddle the bolt. In this case, however, there is always liability of misplacing or losing the gib or washer. Furthermore, all of the forms of washers may be made with tapered sides, so that they form, in etfect,a Wedge, as shown in Fig. 7. In that event the foot-bolts need not be provided with the nuts, but may have merely a head or enlargement on the end thereof, between which enlargement and the foot of the housings the gib would be driven as a wedge, thereby tightly holding the housing on the bed-plate. Also with such tapered gibs or washers, if the nut F is used, it would not necessarily need to be turned in removing or replacing the housings. Furthermore, if the washer is constructed wedge-shaped and the foot of the housing is provided with a corresponding ta per or wedge the washer would have the further advantage that in case of the slight loosening of the nut the washer would not have a tendency to drift from under the nut.

In most rolling-mill housings the upper portions or caps of the housings are made removable in order to permit the ready removal of the rolls therefrom and the placing of other rolls therein. In such forms of housings my improved swinging bolt, with the displaceable washer or gib, may be used to secure the cap to the housing. The swinging bolt will be hinged to the housing-frame and will extend up through slots in the ends of the cap, as will be readily understood by those skilled in the art, and the function and operation of the bolts and displaceable gibs or washers will be precisely the same as in the case of the bed-plate and housing-foot illustrated and described. Such use of the swinging bolts and displaceable gibs or washers isan obvious one, and I intend to include the same within the scope of the claims, as stated. In such application of the invention the housing-frame will be the base mentioned in the claims, while the cap will be the superstructure mentioned in the claims.

What I claim, and desire to secure by Letters Patent, is

1. In rolling-mill housings the combination with a base and a superstructure resting thereon, of a swinging bolt secu red to the base and projecting up through a slot in the superstructure, said bolt being provided at its upper end with an enlargement, and a washer or gib interposed between the superstructure and enlargement on the bolt, said washer being adapted to be displaced to give clearance to permit the bolt being swung away from the superstructure.

2. In rolling-mill housings the combination with a base and a superstructure resting thereon, of a bolt hinged to the base and projecting up through a slot in the superstructure, said bolt being provided at its upperend with a nut, and a washer or gib interposed between the superstructure and nut, said washer being adapted to be displaced to give clearance to permit the bolt being swung away from the superstructure.

3. In rolling-mill housings the combination with a base and a superstructure resting thereon, of a bolt hinged to the base and projecting up through a slot in the superstructure, said bolt being provided at its upper end with a nut provided with an arm or projection, anda removable washer or gib interposed between said not and the superstructure.

4. In rolling-mill housings the combination with the base and a superstructure resting thereon, of a swinging bolt secured to the base and projecting up through a slot in the superstructure, said bolt being provided at its upper end with an enlargement, and a tapered removable washer or gib interposed between the superstructure and bolt enlargement.

5. In rolling-mill housings the combination I with the base and a superstructure resting thereon, of a swinging bolt secured to the base and projecting up through a slot in the superstructure, said bolt being provided at its upper end with an enlargement, and a gib or washer interposed between the superstructure and bolt enlargement, said gib or washer being adapted to be displaced to give clearance to permit the bolt being swung away from the superstructure, and means for securing said gib or washer to the superstructure.

6. In rolling-mill housings the combination with the base and a superstructure resting thereon, of the bolt hinged to the base and projecting up through a slot in the superstructure, a nut on the upper end of said bolt, and a gib or washer removably interposed between said not and the superstructure, said washer being pivoted to the superstructure. V

7. In rolling-mill housings the combination with the base and a superstructure resting thereon, of a bolt hinged to the base and projecting up through a slot in the superstructure, said bolt being provided at its upper end with an enlargement, and a gib or washer pivoted to the superstructure and interposed therebetween and the bolt enlargement, said gib or washer being tapered or wedge-shaped.

In testimony whereof I, the said EUGENE L. MGGARY, have hereunto set my hand.

' EUGENE L. MOGARY.

Witnesses:

RoBT. D. TOTTEN, ROBERT C. TOTTEN.

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