Pinion-housing.

Application filed June 12,1902, Serial No. 111,246, (No. model.)

To all whom it may concern:

Be it known that I, Jerome R. George, a citizen of the United States, residing at Worcester, in the county of Worcester and Common5 wealth of Massachusetts, have invented a new and useful Improvement in Pinion-Housings, of which the following is a specification accompanied by drawings forming a part of the: same, in which— io Figure 1 represents a perspective view of a pinion-housing embodying my invention. Fig. 2 is a plan view of the same. Fig. 3 is: an end view. Fig. 4 is a front view with onehalf shown in central vertical sectional view,, 15 and Fig. 5 represents one-half of, the housingi with the pinions and pinion - shafts removed; and showing the inside or abutting edge of the' shell or case.

Similar reference letters and figures refer 20 to similar parts in the different views.

The object of my invention is to provide a pinion-housing for the pinion of rolling-mills,. in which the pinions are inclosed in an oiltight shell or case; and it consists in the con25 struction and arrangement of parts, as.hereinafter described, and set forth in the annexed claims.

Referring to the accompanying drawings, 1 and 2 denote the upper and lower pinion30 shafts of a rolling-mill carrying pinions 3 and 4 thereon. Each of the pinion-shafts 1 and 2 is journaled in my improved pinion - housing, which consists of two similar stands 5 and 6, the stand 5 being provided with journal-bearings 35 7 and 8 and with feet 9, by which the stand is supported with the feet 9, adapted to rest upon and be attached to a track 10. The stand 6 is provided with similar journal-bearings 11 and 12 and with feet 13, resting upon and attached 4° to the rail 14. The stands 5 and 6 are provided with similar inwardly-projecting oval flanges 15 and 16, forming a shell or case in two halves with the inner edges of said halves provided with radially-projecting flanges 17 45 and 18, which are attached by bolts 19 and are provided with abutting edges which form an oil-tight joint, and the oval flanges 15 and entirely surround the pinions 3 and 4 and inclose an oil-tight chamber 20.

. Each of the . flanges 15 and 16 is provided 50 on diametrically opposite sides with rectangular openings 23, which when the flanges are bolted together form a single opening in each side of the shell, which is closed by doors 21 22. The curvature of the radial flanges 17 55 and 18 at the top and bottom of the housings are concentric, with the journal-bearings of the shafts 1 and 2, the face or abutting surface of the upper part of the flange 17, for example, being included between the broken 60 lines A A, which are concentric with the. axis of the bearing 7, and the face of the lower part of the flange 17 being included between . the broken lines B, Fig. 5, and as the straight or tangential sides of the case joining the two 65 circles A and B are incline!I within openings 23, so that the shell can be rotated about the axis of the bearings 7, that part of the flange 17 included within the broken lines A can be finished by turning the tool running out in 7° the open space 23,.. and similarly that part of the flanged edge of the shell inclosed within the broken lines B can be turned when the shell is rotated about the axis of the bearing for the shaft 2, the cutting-tool running out 75 in the open space 23. The abutting flanges of the shell or case can therefore be readily finished by turning to form a tight joint when the flanges are bolted together by the bolts 19. The opening 23 in each side of the shell 80 is closed by doors 21 22 of any suitable construction adapted to close the opening and form an oil-tight joint, the doors in the present instance being attached to the shell by bolts 24. · - 85

Oil may be supplied'to^-the chamber 20 through an oil-hole 25 in sufficient quantity to enable the lower portion of the pinion 4 to dip into the oil as it revolves. Oil is also supplied to the bearings of the upper pinion-shaft 90 through oil-pipes 25, and the surplus or overflow of oil is transferred from the bearings of the upper shaft through pipes 26 to the bearings 8 and 12 of the. lower pinion-shaft.

768,041

The two halves of my improved pinionhousing are duplicates of each other, and there is but a single joint to be fitted.

The housing is mounted upon tracks 10, 5 placed transversely to the axes of the pinionshafts, in order to allow the housing to be moved out of alinement with the rolls of the mill and replaced when necessary.