IMPROVEMENTS IN BOXES FOR SHAFTING, AND IN HANGERS FOR THE SAME
Year: 1877

page_text: LETTERS PATENT to Joseph Tomlinson, of Black Hawk, in the State of
Colorado, United States of America, for the Invention of "IMPROVEMENTS IN
BOXES FOR SHAFTING, AND IN HANGERS FOR THE SAME."
Sealed the 16th November 1877, and dated the 17th August 1877.
PROVISIONAL SPECIFICATION left by the said Joseph Tomlinson at the Office
of the Commissioners of Patents on the 17th August 1877.
JOSEPH TOMLINSON, of Black Hawk, in the State of Colorado, United States of
America. "IMPROVEMENTS IN BOXES FOR SHAFTING, AND IN HANGERS FOR THE
SAME.'
"
The box is made in two parts; the lower half is made hollow to form an oil
chamber. The upper half of the box sets within flanges upon the lower half, and
the two shells are bolted together; the bolt holes form passage ways for introducing
the oil.
The bearing surfaces are preferably faced with Babbitt metal.
In the upper half of the box there is a channel for receiving a piece of felt or
similar material that forms an upper pad to aid in the lubrication of the shaft by
absorbing the superfluous oil, and returning it to the journal.
In the oil chamber there is a capillary pad that passes up between the bearing
surfaces of the lower half of the box, and this pad is kept to the journal by springs.
Said pad is in a perforated case that sustains the same, and allows free access of
the oil.
At the ends of the bearing surfaces there are cut-offs, preferably of wood, that are
introduced into chambers provided for them in the upper and lower portions of the
two shells, and springs serve to press the cut-offs towards each other; these cut-offs
exclude dust, and prevent oil passing off outside the bearings. The lower cut-offs
enter chambers at the end of the oil chamber, and ensure the return to said oil
chamber of any oil that passes off the ends of the journal. The hanger for supporting
Pains Ad1

page_text: the box and shaft is made as an open frame, with a top plate through which pass
the attaching bolts.
The box is within an opening in the lower part of the frame, and the sides of the
frame are slotted; and in these slots there are blocks, through which pass bolts that
enter opposite sides of the box; and these bolts support the box, and allow of its
being adjusted laterally. The box can be adjusted vertically by means of bolts
acting upon the lower part of the aforesaid block, and a bolt acting upon the top of
the box prevents the box rising after it has been adjusted.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Tomlinson in the Great Seal Patent Office on the 16th February
1878.
JOSEPH TOMLINSON, of Black Hawk, in the State of Colorado, United States of
America, "IMPROVEMENTS IN BOXES FOR SHAFTING, AND IN HANGERS FOR THE
SAME.
19
The box is made of two shells secured together by bolts; the upper half of the
box sets within flanges upon the lower half of the box, and these flanges prevent
the oil escaping at the joint between the two shells, and lessen strain on the bolts.
There is a pad of fibrous material in the upper half of the box to receive and
retain any surplus oil that would otherwise escape towards the ends of the
bearing.
An oil well and lubricating pad is provided in the lower half of the box, and at
the ends of the bearing there are segmental cuts-off pressed to the shaft by springs
that serve to exclude dust, and to retain within the box oil that might otherwise
escape, thus rendering the bearing as free from friction as possible, and lessening the
amount of attention required in keeping the box in order.
The hanger is made as an open skeleton frame, and it is provided with blocks and
bolts, so that the box can be adjusted vertically and horizontally.
In the Drawing Fig. 1 is an elevation of the box and hanger; Fig. 2 is a vertical
section of the same at the line x, x; Fig. 3 is a section of the box at the line y, y,;
Fig. 4 is a section on the line 2, 2; and Fig. 5 is a plan of the lower half of the
box.
The box is made of two shells a and d, and upon the upper part of the shell a
there are flanges e, e, that receive the lower part of the shell d; these flanges extend
the entire length of the box, and rise above the line of division between the two
shells, and they prevent the oil working out of the box at the joint between
the shells, and lessen the lateral strain upon the bolts f that secure the shells
together.
The shell a is made hollow, with an oil chamber 6 below the bearings c that are
preferably faced with Babbitt metal, and of a size to fit the journal.
.
The bearing surfaces 9 are preferably faced with Babbitt metal, and between
these there is a channel for receiving a piece of felt or similar material at h that
forms an upper pad that aids in the lubrication of the shaft, and should there be
any superfluous oil upon the journal it absorbs the same, and returns it gradually
to the journal.
"

page_text: In the oil chamber b there is a capillary pad k that passes up between the bearing
surfaces c, and it is kept up to the journal by a spring ; this pad is in a perforated
case that sustains the same, and allows free access of the oil. By this means a large
quantity of oil can be retained in the well, and supplied gradually and uniformly to
the journal.
The bolts pass through the top part of the shell a, so that oil can be introduced
into the chamber b by removing either of the screws.
At the ends of the bearing surfaces there are cut-offs m, n, that are preferably of
wood, and introduced into the chambers provided for them in the upper and lower
parts of the shells a and d, and there are springs o that serve to press the cut-offs
towards each other. These cut-offs serve to exclude dust, and also to prevent oil
passing off outside the bearings. The lower cut-offs entering chambers at the end
of the oil chamber 6 ensure the return to said oil chamber of any oil that passes off
the ends of the journal.
The hanger is made with the side frames p, p, cross pieces 2 and 3, and top plate
q, and through this latter pass the attaching bolts 4, 4. The journal box sets within
the opening formed by the side frames p, p, and cross pieces 2, 3, and it is supported
by the screw bolts t, t, that pass through the blocks v, v, and enter bosses 6, 6, upon
opposite sides of the lower half of the box, and said bolts t, t, also serve for adjusting
the box laterally.
The blocks v, v, are fitted to move in vertical slots q, q, in the frames p, p, and
they are supported by the screw bolts 8, 8, and by them the blocks are raised or
lowered to adjust the box and shaft vertically. The bolt w passes through the cross
piece 2, and presses upon the top of the box, and prevents the box rising. Clamping
nuts are provided for each of the bolts s, t, and w.
The lower half of the box is made with flanges, as shown by dotted lines in Fig. 4,
if the box is to be upon a pillow block or similar support.
I claim as my Invention,-
First. The combination in a box for shafting of the bearing surfaces g, g, with
the pad h between them, the bearing surfaces c, c, and spring pad k between them,
and the oil receptacle 6 in the lower part of the journal box, substantially as set
forth.
Second. The combination with the journal box, constructed substantially as
specified, of the dust plates m, n, at the respective ends of the box.
Third. The combination with the journal box, constructed as aforesaid, of the
hanger and adjusting screws, substantially as specified.
In witness whereof, I, the said Joseph Tomlinson, have hereunto set my hand
and seal, this Ninth (9th) day of January, A.D. 1878.