Improvements in Journal Boxes.
Year: 1892

page_text: Date of Application, 14th Apr., 1892
Complete Specification Left, 13th Jan., 1893-Accepted, 18th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in Journal Boxes.
We, ISAAC BRAITHWAITE and EDWARD O'BRIEN, of the firm of Isaac
Braithwaite & Son, Kendal, in the County of Westmoreland, Merchants and
Engineers, (a communication from abroad by The Dodge Manufacturing Co., of
Mishawaka, Indiana, United States, America,) do hereby declare the nature of this
invention to be as follows
This invention relates to that class of journal boxes known as self oiling journal
boxes, wherein there is, near each end, a pocket in the lower part and a groove in
the upper part to receive and hold a volume of oil, which is continuously raised and
distributed upon the shaft by a sinall chain or ring which hangs upon and runs with
the shaft, dipping into the oil in the pocket.
The groove in the box cap and the opening for the ring or chain in the lower part
of the boxes must be only wide enough to permit free motion to said ring or chain,
but to hold a useful quantity of oil it is necessary that the opening in the lower part
shall be enlarged below the bearing surface of the box.
Heretofore this enlarged pocket has been produced in casting the box, by means
of an enlarged sand-core, which method would be entirely satisfactory were it not
for the difficulty of removing from the inner surface of the pocket every particle of
sand or scale, which otherwise, would afterwards be liable to come up with the oil
and cut the shaft.
This invention obviates this difficulty which is almost insuperable in practice, by
casting the box with an open pocket, which is accessible and visible at every point
for thorough and effectual cleaning, and by closing over said pocket with a separate
plate. The joints being thoroughly covered and said plate being locked in place
by the lining of the box.
The lower part of the journal is formed with a recess or pocket preferably one
near each end, and the cap is provided with a groove corresponding with opening
into the pocket below. An endless chain or ring hangs upon the shaft resting
within the upper groove and extending down into the oil pocket below.
A plate is fitted within the lower part to cover the pocket except a space along
one margin where a slit opening into said pocket is left corresponding with the
upper groove.
Suitable supports may be arranged within the pocket integral with the box or
with the plate as preferred to prevent any elastic yielding of said plate under the
pressure of the shaft, and to support it from the bottom of the pocket.
A groove within each end of the box is provided to catch the oil which escupes
at the ends of the bearing box and a channel leading from said groove back, into
the pocket is provided to conduct said drip oil into the pocket and thus dispense
entirely with the use of hanging drip cups. The channel is cast'open and is covered
to the margin of the groove by an extension of the plate.
A discharge outlet is placed in the bottom of each pocket so that the spent oil
may be drawn off when ever necessary.
The lining covers the plate and locks it securely in place.

page_text: COMPLETE SPECIFICATION.
Improvements in Journal Boxes.
We, ISAAC BRAITHWAITE, and EDWARD O'BRIEN, of the firm of Isaac
Braithwaite & Son, Kendal, in the County of Westmoreland, Merchants and
Engineers (a communication from abroad by The Dodge Manufacturing Co., of
Mishawaka, Indiana, United States, America,) 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 that class of journal boxes, known as self oiling journal
boxes, wherein there is, near each end, a pocket in the lower part and a groove in
the upper part to receive and hold a volume of oil, which is continuously raised and
distributed upon the shaft by a small chain or ring which hangs upon and runs with
the shaft dipping into the oil in the pocket.
The groove in the box cap and the opening for the ring or chain in the lower part
of the boxes must be only wide enough to permit free motion to said ring or chain,
but to hold a useful quantity of oil it is necessary that the opening in the lower
part shall be enlarged below the bearing surface of the box.
Heretofore this enlarged pocket has been produced in casting the box, by means
of an enlarged sand-core, which method would be entirely satisfactory were it not
for the difficulty of removing from the inner surface of the pocket every particle of
sand or scale, which otherwise, would afterwards be liable to come up with the oil
and cut the shaft.
This invention obviates this difficulty, which is almost insuperable in practice, by.
casting the box with an open pocket, which is accessible and visible at every point
for thorough and effectual cleaning, and by closing over said pocket with a separate
plate. The joints between which are completely covered and said plate locked or
held in place by a lining of babbit or other antifriction metal.
The invention will be fully and particularly described with reference to the
accompanying drawings in which as an example it is shown as applied to a journal
box of ordinary form.
Fig. 1. transverse sectional elevation of journal box in position on pillow block on
line - Fig. 3.
Fig. 2. plan of lower part or half of the journal box.
•
Fig. 3. longitudinal section of a box complete with the shaft in place.
Fig. 4. perspective view of the box cap.
Fig. 5. perspective view of the lower part or half with pocket cover or plate
removed at one end.
Fig. 6. transverse section of the box through one of the oil pockets on line y-y
Fig. 3.
The
Referring to the drawings, A is the shaft which is supported in the journal box.
B is the cap of the box, and C is the lower or bearing part of the same.
part C is formed with recess or pocket d preferably one near each end, and the
cap B is provided with a groove e corresponding with the proposed slit, opening
into the pocket below. An endless chain or ring hangs upon the shaft resting
within the groove e and extending down into the oil pocket d.
A plate is fitted within the lower part C to cover the pocket d except a space
along one margin where a slit, opening into said pocket is left corresponding with
the groove e.
Suitable supports g g¹ are arranged within the pocket integral with the box or
with the plate as preferred to prevent any elastic yielding of said plate under the
pressure of the shaft, and to support it from the bottom of the pocket.
A groove within each end of the box is provided to catch the oil which escapes
at the ends of the bearing box and a channel i leading from said groove back, into
the pocket d is provided to conduct said drip oil into the pocket and thus dispense

page_text: entirely with the use of hanging drip cups. The channel i is cast open (as shown.
in Fig. 5.) and is covered to the margin of the groove / by an extension of the
plate (as is also shown in Fig. 5).
A discharge outlet k is placed in the bottom of each pocket so that the spent oil
may be drawn off when ever necessary.
A lining f¹ of babbit or other soft anti friction metal covers the plate f and the
joints between it and the part C and locks it securely in place.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we -
claim is :-
1. A lubricating journal box provided with an open recess or pocket for the-
lubricant and adapted to receive a lubricating device, and a separate cover plate to
partly close the same.
2. A journal box provided with an open recess or pocket d cast integral with said
box and adapted to receive the lubricant and a lubricating device, and a separate
cover plate adapted to rest in said box and partly close and cover said pocket,..
substantially as set forth.
3. A lubricating journal box half C provided with open pockets d near each end
for the lubricant and adapted to receive a lubricating device, and plates of adapted
to be supported within said box and partly cover and close said pockets, as set.
forth.
4. A lubricating journal box half C provided with an open pocket d for the
lubricant and adapted to receive a lubricating chain or ring, a separate plate ƒ to.
partly cover and close said pocket, and interior supports 9 to sustain said plate
upon the bottom of the pocket.
5. A lubricating journal box provided with a drip groove h within the box and
close to each end, open pockets d for the lubricant and adapted to receive a.
lubricating ring or chain, drip channels i and separate plates f having extensions to.
partly cover said pockets and channels, as set forth.
Dated this 19th day of January 1002
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.