IMPROVEMENTS IN ANTI-FRICTION ROLLER BEARINGS
Year: 1885

page_text: I, EZRA BLAKE LAKE of 909 South Fifth Street, in the City of Camden, in the
County of Camden, State of New Jersey, one of the United States of America,
minister, do hereby declare the nature of my invention for "IMPROVEMENTS IN
ANTI-FRICTION ROLLER BEARINGS" and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement reference being had to the annexed drawing, in which
Fig. 1 is an end view with head removed; Fig. 2 is a vertical section; Fig. 3 is
a perspective of head; Fig. 4 is a perspective of ring; Fig. 5 is a perspective of
bearing roller; Fig. 6 is a perspective of separator roller and Fig. 7 is an end view
of modification with head removed.
My invention relates to that class of anti-friction roller bearings in which are
employed two series of rollers, one series being the rollers that come in direct
contact with the shaft and the other series of rollers being those which form
dividers or separators for the other or shaft rollers.
My improvements have for their object to provide a construction which will
permit the separator rollers being made of larger diameter than heretofore, whereby
their speed of rotation will be diminished and the friction of the parts reduced.
My invention consists in the peculiar construction and combinations of parts
hereinafter fully set forth, having reference principally to the combination with a
box or case of two series of rollers, the rollers of one series having journals between
which the rollers of the other series are located, and rings which maintain the
several rollers in their relative positions, as hereinafter set forth.
Referring to the accompanying drawing, A indicates a cylindrical box or case
having two ends or heads B B, both of which may and one of which, at least, ought
to be detachable from the body.
Each of said heads has a central opening b for the passage of a shaft or
spindle C, and they each have also an annular flange b¹ surrounding said opening.
D D are rollers which fit in the case A and between the heads B B, their
diameters being such that their sides contact with the shaft C and with the inner
side of the wall a of the body A, forming a rolling bearing between said shaft and
body.
To prevent said rollers D D from crowding together or touching each other they
are formed with journals & d at both ends, and between these journals are located.

page_text: a series of separator or divider rollers E E, which are journaless and of a depth or
thickness equal to the height of the head flange 6¹.
F F represent rings which encircle the rollers E E and prevent them from
working our of their positions between the journals of the rollers D D and from
coming in contact with the wall of the case or box A.
The directions of revolutions of the various rollers, shaft and rings are shown by
the arrows, from which it will be seen that, assuming the box or casing to be
stationary with respect to the shaft, the shaft and rings travel in the same direc-
tion-though it should be here remarked that the speed of the rings is much less
than that of the shaft. The rollers D D travel around the shaft and in the saine
direction as the latter, rolling on their axes at the same time, their direction
of rotation on their axes being opposite of that of the shaft, which makes the
contacting sides of said shaft and rollers move together.
The separator rollers E E also travel with the rollers D D but have a contrary
axial rotation derived from contact with the journals d d, so that the contacting
sides of said rollers E E and journals d d move together,
The separator rollers E E contact with the rings F but the journals d d, which
are of less diameter than the rollers E E, do not, so that the sides of said separator
rollers which contact with said rings travel with the latter, said rings forming
rolling contacts between the separator rollers and the wall of the box or case. ·
If desired the shaft or spindle C, may be stationary and the box or case revolve,
the result, as regards the avoidance of friction, being the same in either event.
The construction shown in Fig. 7 may be adopted as a modification, in which the
.rollers D D are made without journals and of less length than the separator rollers,
the ends of the latter projecting beyond the ends of the former and fitting between
the flanges of the heads and the rings F F.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1st. In a roller bearing the combination of a box or casing, rolls which form the
bearings for a central shaft or spindle, separator rolls located between the bearing
rolls, and two rings, one at either end of the bearing rolls and between the latter
and the heads of the casing, substantially as shown and described.
2nd. An anti-friction roller bearing consisting of a box or case A having
heads B B with central flanged openings bb; rollers D D having journals & d;
separator rollers E E, occupying position between said journals, and rings F
encircling the separator rollers, maintaining the latter in position and forming
rolling dividers between said separator rollers and the wall of the box or casing,
substantially as shown and described and for the purpose set forth.
Dated this 11th day of November 1885.