Improvements in Journal-bearing Lubricators.
Year: 1890

page_text: Date of Application, 25th Oct., 1890
Complete Specification Left, 25th July, 139'-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Journal-bearing Lubricators.
I, WALTER WILLIAM SMITH, of The Priory Works, High Road, Lower
Clapton, in the County of London, Railway Rug & Lubricator Manufacturer, do
hereby declare the nature of this invention to be as follows:-
This invention relates to that class of journal bearing lubricators wherein a pad
of cotton, hair, wool, or other absorbent material is held from below close up to
or against the rotating shaft. This pad is supplied with lubricant by wick
attached to the underside thereof, the other ends of said wicks dipping into an oil
box or other receptacle and the liquid lubricant thus supplied to the journal and
spread over its surface by capillary attraction.
Various means have been adopted for holding pads of this description in
position against the journal but all have been more or less defective either in
straining the pads or in holding them too tightly or too rigidly up to the shaft,
whereby the pad soon wears away and. becomes useless for its purpose resulting in a
heated journal.
The object of this invention is to hold a pad of this description in correct position
close up.to or against, the journal,, in such, a manner that while the pad is supported
from below, the support is of a sufficiently resilient nature, to give to the motion of
the shaft, instead of being rigidly or tightly held thereto as hitherto. The support
for my pad, consists of a metallic or other frame curved to the shape of the shaft,
the said frame being affixed to.or placed on a spiral or other spring. The metallic or
other frame is preferably provided with spring, actuated clips, for holding the pad
securely in position, and preventing it from being worked off the frame by the
rotating shaft.
...With the wool or other, material, of, which, the pad is made, and along, the outside
edge or edges thereof, either with the weft or warp, threads of wire may be
interwoven so as to make the pad stronger, and to dispense with the metallic or
other frame, the spring in this case bearing against the metal, threads in the pad.
Dated this:25th day of October 1890.
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in. Journal-bearing Lubricators.
I, WALTER WILLIAM SMITH, (of the Priory Works, High Road, Lower
Clapton in the County of London, Railway Rug and Lubricator Manufacturer, do
thereby 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 that class of journal-bearing lubricators wherein a pad
of cotton; hair, wool or other absorbent material is held from below close. up.to or
against the rotating shaft. These pads are supplied with lubricant by wicks or
"fibres of wool, cotton or other similar material attached to the undersides thereof,
the other ends of said wicks or fibres dipping into an oil box or other receptacle and
the liquid lubricant thus supplied to the journal and spread over its surface by
capillary attraction.
Various means have been adopted for holding pads of this description; in position
against the journal but all have been more or less defective either in straining the
or f
1.

page_text: pads or in holding them too tightly or too rigidly up to the shaft, whereby the pad
soon wears away and becomes useless for its purpose resulting in a heated journal.
The object of this invention is to hold a pad of this description in correct
position close up to or against the journal, in such a manner that while the pad is
supported from below, the support is of a sufficiently resilient nature to give to the
motion of the shaft, instead of being rigidly or tightly held thereto as hitherto.
In order that my invention and the manner in which it may be carried into
practice may be well understood I will describe the same with reference to the
accompanying drawings in which
Fig. 1 shews a longitudinal section of a car axle box with my invention applied
thereto,
Fig. 2 is a vertical section taken on the line a Fig. 1;
Figs. 3 & 4 are enlarged views shewing plan and edge view of the two parts of
the frame, and
Fig. 5 shews the spiral spring G;
Fig. 6 is a perspective view of a pad and frame made in conformity with this
invention.
According to this invention, the support for the pad consists of a metallic or
other frame curved to the shape of the shaft and made in two parts_shewn in
Figures 3 and 4 each part consisting of a side piece A, two end pieces B and C,
and a central transverse piece D. The two parts are held together so as to form
the frame by means of transverse helical springs E wound over the end pieces B.
and C of one part, the corresponding end pieces of the other part being placed
within said helical springs E. The end pieces B B and C C and the central
transverse pieces D D of the two parts of the frame will lie one on the top of the
other. The two sides A A of the frame are thus separated by the transverse spring
connections E, and may be closed up nearer to each other according to the power
of the springs E, and when in position will thus allow for any small horizontal
motion of the shaft out of its true plane of rotation. The springs E will return the
sides A A of the frame to their normal position when the pressure is removed.
The frame so made is supported on or attached to a vertical spiral or other spring G
resting on the base H of the axle box, thus affording a springy or resilient vertical
support for the frame. The pad J on such frame will therefore give to every
vertical or horizontal motion of the rotating shaft.
A convenient means of attaching the frame to the spring G is shewn in Figure 3.
On the underside of the central transverse piece D of one of the parts of the frame
are fixed or formed two loops or eyes F, through which one end of the spring G is
threaded, but I do not confine myself to this method of attachment.
On the longitudinal sides of the pad, I provide a selvedge K preferably woven in
one with the back on which the pile of pad is made. These selvedge edges K are
turned over the sides A A of the metal frame and impaled on the spikes, pins or
their equivalents L rigidly secured to or formed in one with the sides A A of the
frame and on the under surface thereof. By this means the pad is held firmly in
position on the frame and prevented from being worked off the frame by the rotating
shaft. At the same time metallic contact between the pad frame and the rotating
shaft is avoided as there is no metal on the upper part or face of the pad.
To attach the pad to the frame one selvedge edge K is impaled on the spikes L,
the sides A A of the frame are then pinched together so as to compress the transverse
springs E E thereon, the other selvedge edge K is then fixed on the other row of
spikes L, and the frame released. The springs E E then return the frame to its
original position thereby stretching the pad and holding it tightly in position on the
top of the frame.
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 :-

page_text: to a pad held up to the journal, a frame curved to the shape of the journal made in
two longitudinal parts loosely kept in their relative positions by means of helical
springs on their ends, the frame so made being supported on a vertical spiral or
other spring or springs resting on the base of the axle box, and being provided on
its underside with pins, spikes or their equivalents on to which the longitudinal
sides of the pad or selvedge edges thereon are impaled, substantially as hereinbefore
described and for the purposes stated.
2. In a journal lubricator wherein the lubricant is fed by capillary attraction to
a pad held up to the journal, the use of a frame for supporting the pad constructed
substantially in the manner and for the purpose hereinbefore set forth.
3. In a journal lubricator wherein the lubricant is fed by capillary attraction to
a pad on a frame held up to the journal the method of securing the pad to the
frame by means of pins, spikes or their equivalents on the underside of the frame
on to which the sides of the pad or selvedge edges thereon are impaled substantially
as and for the purposes herein before set forth.
4. My improved means for lubricating journals substantially as described and for
the purposes stated.
Dated this 6th day of July 1801
WALTER WILLIAM SMITH.