Improvements in Spring Roller Bearings for Shaft Hangers.
Year: 1896

page_text: Date of Application, 3rd Mar., 1896-Accepted, 4th Apr., 1896
COMPLETE SPECIFICATION.
Improvements in Spring Roller Bearings for Shaft Hangers.
I, JOHN WESLEY HYATT, of 141 Commerce Street, in the City of Newark,
State of New Jersey, United States of America, Mechanical Engineer, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
The objects of this invention are to lighten the construction and to promote the
smooth and noiseless operation of spring roller bearings in shaft hangers. These
objects are accomplished by constructing the greater part of the box in which the
spring roller bearings are contained from a suitable thin sheet of material such as
sheet steel possessing the quality of flexibility or springiness and hence affording
a less rigid support for the spring rollers against which the shaft bears.
In the accompanying drawings I have illustrated a shaft hanger bearing
embodying the invention,
Figure 1 is a side elevation partly in section.
Figure 2 is a transverse section taken through the plane indicated by the dotted
line - of Figure 1.
Figure 3 is an end view of the bearing, upon a somewhat reduced scale, showing
in elevation the adjacent portions of the shaft-hanger.
Figure 4 is a section of one of the end guards, showing its shape prior to being
crimped in place upon the end of the box.
The drawings represent the lower part, A, of a shaft hanger of familiar
construction provided with the usual vertical screw bolts, B and C, for adjustably
securing the journal box at the desired elevation in the hanger. The lower vertical
screw bolt, B, bears at its upper end in a recess formed on the under side of the
saddle, D, adapted to slide vertically within the parallel legs of the hanger.
The box, E, is composed of the trough, e, made of any suitable flexible or
springy material, such as sheet steel and provided with the inwardly extending
end guards, el e, and with the cover F. The trough, e, the bottom and sides of
which are concentrically rounded, is seated in the saddle, D, to which it is secured
by the rivets d d. The inwardly extending end guards, el el, which of course
might be integral with the shell of the trough, e, are more conveniently made of
the horse-shoe shaped pieces, E' E', affixed to the ends of the trough, e, in any
convenient way, as, for example, in the manner illustrated in the drawings, in which
as will be seen each of the guard pieces, E', is provided near its edge with the
concentrically curved groove, E, for receiving the end of the trough e. The
exterior of the trough, e, near each end is provided with the circumferential
groove, e, into which the exterior lip or wall, E³, of the groove, E', is crimped, or
upset, as illustrated in section in Figure 1. The longitudinal opening between the
opposed edges of the trough, e, is sufficiently wide to permit of the introduction
into the box of the shaft.
The spring rollers are distributed within the trough e in an annular system, C,
arranged around the shaft in the usual manner. After all the rollers are inserted
in their appropriate positions the cover, F, is applied as shown.
It will be seen that the cover, F, is provided along its parallel edges with the
shoulders, ff, fitting within the parallel edges of the trough, e, and is provided
at its ends with downward projections, f, which it the opposed parallel

page_text: edges, et e, of the end guards, ele, and thus serve to complete the end guards
which confine the spring rollers within the box.
The cover, F, is provided on the top with a central recess, F1, for receiving the
lower end of the vertical bolt, C, by means of which the box is held down to its
proper position.
By this construction, not only is the box considerably lessened in weight as
compared with the cast-iron boxes heretofore used in shaft hangers, but the
smoothness and noiselessness of operation of the spring roller bearing is materially
promoted by the flexible or springy quality of the shell of the trough e.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The herein described improvement in spring roller bearings for shaft hangers,
which consists of a box for containing the annular system of spring rollers,
composed of a flexible or springy material, such as sheet steel, in the form of a
concentrically rounded trough open at its ends, but provided with inwardly
extending end guards, the said box being also provided with a removable cover,
and adapted to be seated and secured in the shaft hanger in the usual manner.
2. In a spring roller bearing for shaft hangers, the open ended trough, e, made
of a flexible or springy material, such as sheet steel, and having its bottom and
Bides concentrically rounded, horse-shoe shaped flange pieces, EE, fastened to
the ends of the trough, e, the removable cover, F, fitting within the parallel edges
of the trough, e, and provided at its ends with downward projections, fitting
within the opposed parallel edges, e' e', of the end guards, ee, the whole con-
stituting the journal box, E, the saddle, D, means for fastening the trough, e,
thereto, and the usual vertical adjusting bolts, B and C, for adjustably securing the
journal box in the shaft hanger.
Dated: 21 dan of Vaal 1900
HASELTINE, LAKE & Co.,
45 Southampton Buildings, Loudon, W.C., Agents for the Applicant.