Roller Bearings.
Year: 1897

page_text: Date of Application, 4th Jan., 1897-Accepted, 6th Feb., 1897
Roller Bearings.
I, HERBERT LOUD, of 162 Commercial Street, Boston U.S.A. Manufacturer,
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 :-
This invention relates to roller-bearings, and more particularly to that class of
roller bearings which are commonly used in the sheaves of blocks; and its object
is to provide a roller-bearing, of durable and simple_construction, capable of easy
adjustment-to-its-position, and which can be taken apart for repairing, without
defacing the bearing, in any way.
The accompanying drawing illustrates this invention, in which,
Fig. 1. is a plan view of a portion of a sheave, and showing the improved roller-
bearing, properly adjusted therein.
Fig. 2. is a sectional view of Fig. 1. through the dotted line x, x.
Fig. 3. is a side view of one of the series of rollers, which compose the bearing.
Fig. 4. is a plan view of one half of the box, or case which encloses the rollers.
Fig. 5. is a side view of the two halves of the box drawn slightly apart, and
showing the adaptation to interlock.
Fig. 6. is a plan view of the interior guide-bearing which holds the rollers from
contact with each other.
Similar letters refer to like parts in the several views.
The letter a, indicates the central portion of a sheave, and A, indicates the
roller-bearing, the box or case of which is divided laterally into two halves a¹,
and a², and provided with the interiorily projecting rib a³, and the exteriorily
projecting lugs, b.
The ends of the part a', are provided with the tongues b', adapted to enter the
grooves, in the part a², and thus interlock, when the two parts a', and a², are in
position, as shown in Fig. 1. constituting practically, a solid open ended case or
shell, on the interior surface of which the rollers bear. c, c, are the rollers, which,
when held in proper position with respect to each other constitute the bearing for
the shaft of the block.
These rollers have their ends, flush with the ends of the shell which encloses
them, and are each provided with an annular groove c', midway of its ende,
adapted to receive the rib a³.
d, indicates a flat disk of metal of equal thickness with the rib a³, having an
opening d', in its centre, somewhat larger than the shaft on which the rollers are
to bear, and having its outer edge provided with recesses d² adapted to receive the
smaller diameter c³ of the rollers. This disk, acts as a guide for the rollers, and
the recesses d³, serve to hold the rollers from contact with each other, and the
rib a³ serves to hold the rollers and disk in proper position within the box or
case A.
To adjust the roller-bearing in a sheave, an aperture of suitable size to receive
the box of the bearing, is made in the centre thereof, together with suitable
recesses to receive the lugs b. on the periphery of said box, and the bearing is
then driven or forced into said aperture, until its ends are flush with the sides of
the sheave.
The lugs b. prevent the box from turning in the sheave.
any time need repair, it is only necessary to remove the
гр
Should the bearing, at
same from the sheave,

page_text: when it will readily come apart, so as to allow the substitution of other parts, for
those worn or damaged.
The bearing might be made, with the box undivided, and the rib a³, made separately
therefrom, in halves. In such case, the disk d, roller c, and rib a³, would he
assembled as shown in Fig. 1. and the whole, would then be forced within the box,
and would retain its place there, by the friction of the rib, on the inside of the box,
but I prefer the construction shown.
The adjacent ends of the separate halves of the box, are made to interlock, in
order to hold said ends squarely upon each other, so there shall be no obstruction
to the free action of the rollers.
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-
-
In a roller-bearing for a sheave, in combination an open ended case or shell,
divided laterally into halves adapted to interlock; an annular rib, projecting from
the interior surface of said shell, midway of its ends; a series of rollers having
their ends flush with the ends of said shell, and each provided with an annular
groove, midway of their ends, adapted to receive said ribs; and an interior guide-
bearing, adapted to loosely engage said grooves in the rollers, and prevent the
rollers from contact with each other, substantially as shown and described.
2nd. In a roller-bearing for a sheave, in combination, an open ended case or
shell; an annular rib projecting from the interior surface of said shell midway of
its ends; a series of rollers each provided with an annular groove midway of their
ends, adapted to loosely engage said rib; and an interior guide-bearing, adapted
to loosely engage said grooves in the rollers and prevent the rollers from contact
with each other, substantially as shown and described.
Deted this 4th day of January 1897.
ALLISON BROS.,
Agents for the Applicant.