Improvements in Roller Bearings.
Year: 1897

page_text: Date of Application, 12th May, 1897-Accepted, 24th July, 1897
COMPLETE SPECIFICATION.
Improvements in Roller Bearings.
I, HARVEY HARVEY-GEORGE, Gentleman, of "The Tower" Gorleston, Great
Yarmouth, Norfolk, 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 object of this invention is to provide self-adjusting antifriction roller bear-
ings for Sheaves Pulley-Blocks Bearings for Shaftings, Thrust. Blocks for
Steamboats, Capstans, Fairleads, Hubs to Axles to all kinds of vehicles, Carriages,
Motor-Cars, and the like, where it is desirable to reduce friction-for which
purpose I employ Hard Steel Chilled Iron or Metal Rollers or in cases where
applicable rollers covered with a rim of india rubber or other soft material, or by
an inflated cover or india rubber so, as to render it more pliable, also by the use
of springs or other contrivances.
In practice I find that it is best to allow the rollers to revolve quite freely, for
which purpose I do not fix them with centre-pins or other contrivances but I
leave them loose and independent.
In order to more clearly explain my invention, reference is to be had to the
accompanying drawings, forming part of the specification in which:-
Figure I represents a block containing a sheave "A" which being recessed
on both sides contains loose rollers "B" which bear against and revolve on the
pin "C".
:
'
Figure II is a sectional view on the line "D" in Figure I, and it shows
how the sheave "A" is recessed on both sides and the rollers "B" placed in
position. The Shell or Case of the Block "E" can be made of Iron, Brass, or
other metal.
"
'G."
Figure III: represents a block in which the sheave "F" is not recessed like
the sheave "A " in Figure II but which has, and runs on. fixed centres
These centres work on rollers "H" arranged in a metal case "I";
or shell of the block "J" can be of wood.
:-
the outer part
Figure IV represents a Plummer Block to carry shafting. "A" is the
shaft running on the rollers "B" which rest in and rotate in the Plummer
Block "C." It will be noticed that the arrangement for holding the rollers in
position is not the same on both sides of the Plummer Block. This is to show that
they can be held in position in various ways so long as the shaft revolves on and is
held in position by the rollers only.
Figure Vis a sectional view of the Plummer Block. "A" is the shaft,
"B" the rollers, "C" the cap to the block the cap and the lower part of the
block are both cut away as far as the dotted line "D" so that the shaft "A" may
revolve and bear upon the rollers "B" only.
Figures VI, VII, VIII:-represent my invention as applied to Thrust
Journals of Propeller Shafts in Steam Vessels.
Figure VI is an end elevation; Figure VII is a top view, and Figure VIII a
side view. "A" is the Propeller Shaft on which is forged a collar "B":
against this collar around the shaft is fixed a Disc in two halves "C". Against

page_text: the face of this Disc revolve two wheels-D" which are held in position on the
bed-plate "E" and which revolve on rollers "F" taking the Thrust. The letters
referring to the various parts apply in all cases equally in Figures VI, VII, VIII.
Figure IX: represents a Capstan suitable for use on all kinds of vessels and
on shore. "A" is the stand or base on which the Capstan stands. This can be
constructed with either a square or round base and of any suitable height. "B"
is the Capstan in the top part of which are eight square holes “C” to receive the
Capstan Bars by which it worked.
*
Figure X is a half section of Figure IX. A" is the stand, "B" is the
Capstan, "C" the holes for Capstan Bars, "D" the spindle on which the Capstan.
revolves. On the top surface of the stand "A" a recess is cut "E" in which is
placed a ring of hard metal: A second recess "F" represents the teeth in which
the catches or pawls "G" fall and are held so that the Capstan may not rotate
backwards. In the bottom part of the Capstan "B" two recesses "H" and "I"
are cut opposite to and similar to "E" and "" in the stand" A. In "H"
is placed another ring of hard metal similar to the one placed in the recess
E":
In the recesss "E" and "H" are placed loose rollers "J" made of chilled iron,
metal, hard wood, or other suitable material on which the Capstan revolves.
Two other grooves are cut on the inner face of the Capstan "B" marked "K"
and "L" in which are placed loose rollers M" and N" which revolve
against the spindle "D". The Capstan is held down in its place by the cap "0"
fixed to the top of the spindle "D".
+
66
"
Figure XI represents a top sectional view of the stand "A" with the
rollers "N" also showing.
Figure XII
also showing.
is a top sectional view of the Capstan "B" with the rollers "M"
The letters in Figures IX, X, XI, and XII apply to the same parts
in each case.
The diameter, thickness, material, or number of rollers employed
in any of the before-mentioned cases is immaterial and can be arranged as is best
suited to the strength and wear required. I also claim that the arrangement of
rollers can be used in the hubs and for the bearings of carriage wheels, and all
kinds of vehicles, carts, trucks, or motor cars with or without an attachment
or padding of india rubber, or an inflated tyre fixed to the rollers or on which they
revolve.
.
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
First The application of loose rollers for all kinds of bearings arranged con-
structed and held.in position as I have herein described.
Second The combination of loose. rollers with soft or pliable material either
fixed to the rollers themselves or so arranged that the rollers work and
revolve thereon.
Third That the rollers themselves revolve quite freely and independently
without centre-pins or any other contrivance to keep them in a fixed position...
Dated this 12th day of May 1897.
H. HARVEY-GEORGE.