IMPROVEMENTS IN SPINNING MACHINE SPINDLES AND IN BOLSTERS FOR THE SAME.
Year: 1874

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
い
Office," Southampton Buildings, London, Doctor of Laws, for the
Invention of "IMPROVEMENTS IN SPINNING MACHINE SPINDLES AND IN
BOLSTERS FOR THE SAME. -A communication from abroad by Francis
J. Rabbeth, of Pawtucket, Rhode Island, United States of America.
COMPLETE SPECIFICATION filed by the said George Haseltine at
the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 16th July 1874, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office,' Southampton
Buildings, London, Doctor of Laws, send greeting.
WHEREAS am in possession of an Invention for "IMPROVEMENTS
IN SPINNING MACHINE SPINDLES AND IN BOLSTERS FOR THE SAME," and have
[Prise 8d.]

page_text: solemn Declaration that it has been communicated to me from abroad
by Francis J. Rabbeth, of Pawtucket, Rhode Island, United States of
America.
NOW KNOW YE, that I, the said George Haseltine, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the said Invention, and
in what manner the same is to be performed, in and by the following
statement, reference being had to the accompanying Drawing forming
a part of this Specification :—
The spindle to which my improvements relate is of the well know
class in which the upper and the lower bearings for the spindle are
placed in a continuous tube or bolster closed at the bottom below the
foot bearing or step of the spindle. It is desirable that there should be
provided an oil reservoir or chamber in combination with such bolster,
and an arrangement for such purpose consists of a chamber formed in
the upper head of the bolster, and connected with the tube which
contains the spindle.
The first part of the present improvements consists in an arrangement
for obtaining the necessary oil chamber or reservoir when the sleeve
portion of the compound spindle is made of a diameter small enough to
admit of being surrounded by a bobbin, and in consequence the diameter
of the head of the bolster becomes too much reduced to allow of the
formation of an oil chamber therein.
In the accompanying Drawing, Figure 1 is a vertical section of my
machine Figures 2, 3, 4, 5, show detached portions of the same.
A, Figure 5, represents an enlarged view of a portion of the tube
which contains the upper bearing a and the step b of the spindle. From
c to d, Figure 5, the outside diameter of the tube is reduced so as to
leave shoulders e and f on the tube. Around the tube A and concentric
with it is placed a tightly fitting thin sheet metal jacket g, which
extends from the top of the tube A, beyond the shoulder f, and sur-
rounding the portion of the boiler tube A of reduced diameter, forms an

page_text: oil chamber around the bolster which may be of any preferred length.
The interior of the said bolster tube is connected with the oil reservoir
by means of crifices or passages at the top and bottom. By this
contrivance an oil reservoir of sufficient capacity can be obtained
without increasing unduly the diameter of the sleeve portion of the
spindle upon which the bobbin is to be placed.
The next feature of my Invention consists in an improvement in the
bolster bearing for the upper journal of the spindle, and it resides in the
employment of a metal bushing B, Figures 3 and 4, of cylindrical form
but with an open seam m. I prefer to form this bolster from rolled
sheet metal, as thereby I can obtain metal, of any preferred degree of
density. This bolster so made is to be forced into the upper end of the
tube, and being elastic by reason of the open seam, and being contracted
in diameter when inserted in the tube it holds itself in position by
pressure against the inner wall of the tube. When worn it can be
removed without difficulty and its place easily supplied by another. It
is better that the open seam m should not be entirely closed after the
bolster has been inserted, for the reason that a small longitudinal
opening facilitates the circulation of the oil throughout the bearing.
In order that oil may be conveniently supplied to the spindle I make
a hole o longitudinally through the head of the spindle for a short
distance, and connect this hole with another hole drilled through the
side and which communicates with the tube wherein the spindle bearings
are located. By simply removing the bobbin C, oil can be poured into
the hole o and will flow into the tube containing the spindle bearings,
and after filling the latter flow into and fill the chamber h.
Having thus fully described the said Invention as communicated to
me by my foreign correspondent, and the manner of performing the
same, I wish it understood that I claim,—
First. The combination of the jacket and the recessed and perforated
portion of the spindle tube c, d, k, whereby an oil chamber h is forined
as above described.
Second. The combination as above described with a bolster support A,
for a spindle of a bolster or bearing for the spindle, constructed as herein
unified

page_text: Third. The combination of the oil duct o, n, in the head of the spindle
with the tube A, containing the upper and lower bearings of the spindle,
as herein described.
In witness whereof, I, the said George Haseltine, have hereunto
set my hand and seal, this Sixteenth day of July, in the year of 5
our Lord One thousand eight hundred and seventy-four.
GEORGE HASELTINE. (L.S.)
Witness,
H. J. NOONE,
8, Southampton Buildings,
London.