Improvements in Bearings for Lathes and other Machines.
Year: 1890

page_text: Date of Application, 7th Nov., 1890
Complete Specification Left, 24th July, 1891-Accepted 20th
100
PROVISIONAL SPECIFICATION.
Improvements in Bearings for Lathes and other Machines.
We CHARLES TAYLOR and GEORGE BENJAMIN TAYLOR both of Nos. 43
and 44 Bartholomew Street Birmingham in the County of Warwick Machine
Tool Makers do hereby declare the nature of this invention to be as follows:-
Our said invention consists of the improvements hereinafter described in the
bearings of lathes and other machinery by which said improvements the collars or
brasses are fixed in their seats and adjusted more readily and more effectually than
in bearings of the ordinary construction.
We will describe our invention in connection with a lathe head.
We make the collar or brasses in the usual way that is in two halves with or
without collars at their ends.
depression in the head stock and fix them in their place by screw pins as usual but
We enclose the collars between the gland and the
instead of making the division between the gland and the headstock in a plane
passing through the middle of the cylindrical hole in which the neck of the spindle
is inserted we make the said division in a higher or lower plane so that the central
line of the spindle is either higher or lower than the said division.
in that part of the bearing in which the larger part of the bore is situated in a line
We drill a hole
radial with the central line of the bore and at right angles thereto the said hole
opening into the bore. The outer half of this hole is of somewhat larger diameter
than the inner half. In the inner half of the said hole we insert a cylindrical pin
fitting loosely in the said hole. The inuer end of this pin is wedge shaped. The
opposed ends of the collar opposite the said pin are inclined at a similar angle to
the wedge shaped end of the pin and the said wedge shaped end of the pin enters
the wedge shaped space at the parting of the collar. By means of a screw pin
taking into a thread in the outer half of the hole the said wedge pin can be forced
forward to a greater or less degree and its wedge shaped end made to separate the
two parts of this collar at the parting. By means of the screw pins by which the
gland is secured to the headstock and the wedge shaped side pin the parts can be
djusted with a nicety unattainable by the ordinary method of construction.
Although we prefer to make the division between the gland and headstock as
escribed and to give the wedge ended pin motion in a line crossing the axis of the
ore; yet the said wedge shaped pin may be situated in a line parallel with
he bore and be forced into the parting of the collar by a motion parallel to the
ore.
Sometimes we make the headstock and gland cach to receive half the bore in
hich case we make their parting in a plane inclined to that in which the parting
the collar is situated.
The wedge ended pin described and the appliances connected with it may be used
one or both sides of the headstock.
The said wedge ended pin and appliances may be used in conjunction with collars
en at one side only cylindrical within and conical externally. On the conical
terior of the collars a series of equi-distant concave flutes or corrugations is made.
e said collar may be fixed by screwing it in a conical hole in the headstock and
wedge arrangement described be applied to the parting at its divided side. By
ustment of the conical collar in the hole in the headstock and the wedge arrange-
at the nicest adjustment of the parts may be secured.
Or the conical collar may have no division in its side. In this case we make a
es of radial slots in its interior the said slots being made in the ribs between the
[Price 8d.]

page_text: flutings. The forcing of this collar more or less into the conical hole in the head-
stock affords an accurate adjustment.
Dated the 7th day of November 1890.
W. T. WHITEMAN,
Agent for the Applicants.
improvements in Bearings for Lathes and other Machines.
We CHARLES TAYLOR and GEORGE BENJAMIN TAYLOR both of Bartholomew
Street Birmingham in the County of Warwick Machinists do hereby declare the
nature of our invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement
Our said invention consists of the improvements hereinafter described in the
bearings of lathes and other machinery, by which said improvements the collars or
brasses are fixed in their seats and adjusted more readily and more effectually than
in bearings of the ordinary construction.
We will describe our invention in connection with a lathe head.
We make the collar or brasses in the usual way, that is, in two halves with or
without collars at their ends. We enclose the collars between the gland and the
depression in the head stock and fix them in their place by screw pins as usual but
instead of making the division between the gland and the headstock in a plane
passing through the middle of the cylindrical hole in which the neck of the spindle
is inserted we make the said division in a higher or lower plane so that the central
line of the spindle is either higher or lower than the said division. We drill a hole
in that part of the bearing in which the larger part of the bore is situated in a line
radial with the central line of the bore and at right angles thereto the said hole
opening into the bore. The outer half of this hole is of somewhat larger diameter
than the inner half. In the inner half of the said hole we insert a cylindrical pin
fitting loosely in the said hole. The inner end of this pin is wedge shaped. The
opposed ends of the collar opposite the said pin are inclined at a similar angle to
the wedge shaped end of the pin and the said wedge shaped end of the pin enters
the wedge shaped space at the parting of the collar. By means of a screw pin
taking into a thread in the outer half of the hole the said wedge pin can be forced
forward to a greater or less degree and its wedge shaped end made to separate the
two parts of this collar at the parting. By means of the screw pins by which the
gland is secured to the headstock and the wedge shaped side pin, the parts can be
adjusted with a nicety unattainable by the ordinary method of construction.
The said wedge ended pin and appliances may be used in conjunction with collars
open at one side only cylindrical within and conical externally. On the conical
exterior of the collar a series of equidistant concave flutes or corrugations is made.
The said collar may be fixed by screwing it in a conical hole in the headstock and
the wedge arrangement described be applied to the parting at its divided side. By
adjustment of the conical collar in the hole in the headstock and the wedge arrange-
ment the nicest adjustment of the parts may be secured.
Or the conical collar may have no division in its side.
In this case we make a
series of radial slots in its interior the said slots being made in the ribs between the
flutings.
The forcing of this collar more or less into the conical hole in the headstock
affords an accurate adjustment.
We will now describe with reference to the accompanying drawings the manner
in which our invention is to be performed.
Figure represents in vertical longitudinal section and Figure 2 in cross section
the bearing of a lathe or other machine constructed according to the first described
arrangement of our invention.
A is the collar or brasses of the bearing the parting or division at one side being

page_text: ter described; B is the gland and C is the headstock of the lath
or machine. It will be seen that the collar or brasses is or are enclosed between th
said gland B and the depression in the headstock; P P are the ordinary set screw
for fixing the collar A in its place. The division between the gland B and th
5 headstock C is marked K K the said division being situated in a plane highe
than the central line of the bore J' in which the spindle works; N N' is the hole i
the headstock for receiving the wedge ended pin and set screw.
It will be seen by
5
an examination of the drawing that this hole is situated in a line radial with th
central line of the bore J and opens into the said bore, the outer half N of the
said hole being of larger diameter than the inner half N'. Inserted in the inner
half N' of the said radial hole is a loosely fitting cylindrical pin D with a wedge
shaped end E and in the screwed larger part N of the said hole a side screw pin F
works for acting upon the wedge ended pin D.
ends or sides of the parting of the collar A opposite the pin D are inclined at a at
It will be seen that the opposed
al similar angle to the wedge shaped end E of the pin D which end E enters the
wedge shaped space at a² at the parting of the collar so that by forcing forward
more or less the pin D by means of the screw pin
said pin D can be made to separate the two parts of the collar A at the parting
the wedge shaped end E of the
and lock the said collar in the bearing. Thus, by the use of the side pin F and the
screw pins P, P by which the gland is secured to the headstock, the parts can be
adjusted with great nicety.
In place of the wedge ended pin D E a wedge may be used the said wedge lying
in a groove formed for it within the parting of the collar A, or within a groove
made in the headstock or in both. The said wedge may be made of any convenient.
sectional figure, preferably oblong, and may be forced between the parting or division
of the collar by means of one or two set screws (see Figures 3 and 4).
Although we prefer to make the division between the gland and headstock as
described and represented and to give the wedge or wedge ended pin motion in a
line crossing the axis of the bore yet the said pin or wedge may be situated in a
line parallel with the bore J' and be forced into the parting of the collar by a motion
parallel to the bore; and the division between the gland and headstock may be
situated in a lower plane than the central line of the bore.
Sometimes we make the headstock and gland each to receive half the bore in
which case we make their parting inclined to that in which the parting of the collar
is situated.
The wedge ended pin described and represented and the appliances connected
with it may be used on one or both sides of the headstock.
Figure 3 represents in horizontal section and Figure 4 in cross section, taken on
the line A B Figure 3, the arrangement of our invention in which a wedge is used
in conjunction with a collar open at one side only. In this arrangement the single
side divided collar H is cylindrical within and conical externally and fits in a
correspondingly shaped hole in the headstock C one end of the said conical collar
being screwed; or the side divided collar may be cylindrical within and without.
The conical exterior of the collar H is provided with a series of equidistant flutes or
orrugations as represented in Figure 4 to enable it to contract uniformly through-
ut its length. The said collar H is adjusted in the hole in the headstock by
rawing it outwards by means of the screw nut I screwed on its end made to bear
gainst the headstock; or the collar may be fixed and adjusted by screwing it into
he headstock. In this arrangement we have represented an oblong wedge G
etween the single parting of the collar H for separating the two parts of the
llar at the parting the said wedge being forced between the said single side parting
the collar by the two set screws R R; or a single set screw may be used.
Figure 5 represents in horizontal section and Figure 6 in cross section our
rangement in which the collar or brass S has no division in its side but is
ovided in its interior with a series of radial slots J J made in the ribs between
e flutings as seen in Figure 6.
By means of the said slots at J J the conical collar is made elastic so that when

page_text: it is forced into the conical opening T T in the headstock C by means of the screw
ring at U (see Figure 5) it contracts on the spindle for adjusting its position thereon.
Thus the forcing of the collar S more or less into the conical hole in the headstock
affords an accurate adjustment.
Having now particularly described and ascertained the nature of our invention
and the manner in which the same is to be performed we declare that we claim as
our invention of "
Improvements in bearings for lathes and other machines"
First Making the parting or division of the collar or brasses of the bearing and
the parting or division of the gland and headstock of the bearing in different planes
for the purpose and substantially as hereinbefore described and illustrated in the
accompanying drawings.
Secondly: The combination in a bearing of the kind referred to in the first
claim of one or more wedges or wedge ended pins for separating the divided collar
at its parting or partings and locking it in the headstock and gland substantially as
hereinbefore described and illustrated in the accompanying drawings.
-
Thirdly: The use in bearings of a collar or brass divided on one side only and
the combination therewith of a wedge or of a wedge ended pin or pins for adjusting
the collar in the gland and headstock; whether the divided collar be cylindrical
within and conical externally or cylindrical within and without substantially as
herein before described and illustrated in the accompanying drawings.
Lastly: The use in bearings of an undivided collar conical externally and made
elastic so that its bore will contract when the said conical collar is forced into a
conical hole in the headstock substantially as herein before described and illustrated
in the accompanying drawings.
Dated the 20th day of July 1891.
CHARLES TAYLOR.
GEORGE BENJAMIN TAYLOR.