Improvements in Sliding, Surfacing, Screw-cutting, or other similar Lathes.
Year: 1890

page_text: COMPLETE SPECIFICATION.
Improvements in Sliding, Surfacing, Screw-cutting, or other
similar Lathes.
I WILLIAM BUCKLEY of Millsands, Sheffield in the County of York Engineer 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 in writing, and on reference to the accompanying sheets of drawings, that
is to say:
My Invention relates to and consists in new and useful improvements in the
construction of sliding surfacing, screw-cutting, or other similar lathes, excepting
those in which the purchase or part of the purchase is obtained by a wheel or pinion
fitted upon a counter spindle gearing either internally or externally with a wheel
upon the back of the face plate, the principal object of my invention being to
regulate the speed of the main spindle and the purchase of the lathes to be used
for turning articles and for cutting screws of different diameters in the most efficient
and economical way, which object I accomplish as follows:-
In carrying out my invention in practice, according to one modification thereof I
extend the end of the main spindle and also the end of the counter spindle of the
lathe beyond the back bearings which support or carry the main and counter
spindles. Upon the projecting ends I place change wheels which can be made to
gear into each other or into one or more compound change wheels and pinions which
I place in a suitable position upon one or more studs, and I vary the diameters of the
change wheels or the compound change wheels and pinions by taking them off
the spindles or off the studs and putting on change wheels of other suitable
diameters in the place of them according to the diameter of the article to be turned
or the screw it is required to cut; by these means the speed of the main spindle of
the lathe is adjusted so that the work can be done in the most efficient manner
and with great economy whether the article operated upon be large or small.
According to another modification of my improvements, in addition to the main
spindle and the counter spindle I apply and use one or more additional counter spindles
which can be made to consist of either solid bars or hollow shafts or tubes, and
it or they can be arranged either separately or one within the other, the hollow shaft
or tube forming an outer counter spindle to convey motion through the bearings
which support it or thein independently of the inner counter-spindle and which I fix in
any convenient position in the lathe, either parallel to or at an angle with the main
spindle for gearing with the first counter spindle placed at either side of the lathe,
and I extend the ends of these counter spindles beyond either their back or their
front bearings and I put change wheels upon the projecting ends or upon those
parts of the counter spindles within and between the bearings.
The change
wheels can be arranged to gear into each other or into one or more compound
change wheels and pinions placed upon one or more studs and I vary the diameters
of the change wheels or of the compound change wheels and pinions by taking them
off the counter spindles or off the studs and putting on change wheels of other
suitable diameters in the place of them according to the diameter of the article to
be turned or the screw to be cut, as described in the previous modification.
According to a further modification of my improvements I apply and use a loose
barrel or sleeve which can be made in two or more parts, I put this loose barrel or
sleeve upon the counter spindle or upon the main spindle as may be required, that is
to say when the cone pulley is upon the main spindle I put the loose barrel or
sleeve upon the counter spindle, but when the cone pulley is upon the counter spindle
I put the loose barrel or sleove upon the main spindle, one part of the loose barrel
or sleeve is connected to the spindle by means of one or more keys or studs fitted

page_text: into one or more grooves or recesses in the loose barrel or sleeve and in the spindle,
or by any other desirable means, the different parts of the loose barrel or sleeve
being connected together by bolts and flanges or in any suitable or practical way,
and by connecting or disconnecting the parts of the loose barrel or sleeve the lathe
can be driven either from the wheels upon the extended ends of the spindles or
from wheels placed within or between their bearings.
I wish it to be clearly understood that the change wheels alluded to in the foregoing
descriptions can be either cog wheels with teeth of any desired form such as parallel,
circular, helical, or bevel, or they can be friction wheels the frictional surfaces of
which can be either parallel, curved, angular, or of any other section.
In order that my invention may be fully understood 1 have annexed hereto ten
sheets of explanatory drawings, in describing which the letters used and marked
thereon are the same for corresponding parts in all the Figures of the drawings.
a, indicates the change wheels. b, the main spindle. c, the counter spindle. d, the
second counter spindle. e, the loose barrel or sleeve., the coupling flanges.
g, the (step) cone pulley. h, the worm and worm wheel. i, the intermediate
compound change wheels and pinions; and j, the stud bearing. c¹, is the solid bai,
and d', the hollow shaft (Figs. 17, and 18).
Figures 1, and 2, Sheet 1, represent and comprise a plan and an end elevation of
my improved lathe head geared with change wheels a, fixed upon the back onds of tho
main and counter spindle b, and c.
Figures 3, and 4, Sheet 2, represent and comprise a plan and end elevation of my
improved lathe head with two counter spindles c, and d, and geared with change
wheels a, placed upon
the back ends of the counter spindles c, d, and with a loose
barrel or sleeve e, in two parts, with coupling flanges f.
Figures 5, and 6, Sheet 3, represent and comprise a plan and end elevation of a
lathe head with a loose barrel or sleeve e, on the main spindle 6, and a step cone
pulley 9, on the counter spindle c, on the front side of the lathe, geared with
change wheels a, on the back ends of the main and counter spindles b, c.
Figures 7, and 8, Sheet 4, represent and comprise a plan and end elevation of a lathe
head with two counter spindles c, d, at the front side of the lathe, and a step cone
pulley g, on the first counter spindle c, geared with change wheels a, on the back ends
of the counter spindles c, d.
Figures 9, and 10, Sheet 5, represent and comprise a plan and end elevation of a
lathe bead with two counter spindles c, d, and geared with change wheels a, placed
upon the front ends of the counter spindles c, d, and with a loose barrel or sleeve e,
in two parts with coupling flanges f.
Figures 11, and 12, Sheet 6, represent and comprise a plan and end elevation of a
lathe head with a worm and worm wheel h, and with two counter spindles c, d, geared
with change wheels a, on the back ends of the counter spindles c, d.
Figures 13, and 14, Sheet 7, represent and comprise a plan and end elevation of a
lathe head geared with change wheels a, placed upon the back ends of the main and
counter spindles b, and c, and intermediate compound change wheel and pinion i, i,
on the stud bearing j. The intermediate compound change wheel and pinion i, i, can
be removed and the change wheels a, can be made to gear into each other.
Figures 15, and 16, Sheet 8, represent and comprise a plan and end elevation of a
lathe head with two counter spindles c, and d, and geared with change wheels a
placed upon the back ends of the counter spindles c, d, and intermediate compound
change wheel and pinion i, i, on the stud bearing j. The intermediate compound
change wheel and pinion i, i, can be removed and the change wheels a, can be made
to gear into each other.
Figures 17, and 18, Sheet 9, represent and comprise a plan and end elevation of a
lathe head with two counter spindles consisting of a solid bar c', and a hollow shaft d',
with a coupling flange f, forming the second counter spindle arranged one within or
through the other and geared with change wheels a, placed upon the back ends of the
counter spindles c, d, and intermediate compound change wheel and pinion i, i, on
the stud bearing j, and with a loose barrel or sleeve e, with coupling flange f.

page_text: Figure 19, represents a sectional side elevation of one end of the inner and outer
counter spindles c, d, with the change wheels a, and the intermediate compound
change wheel and pinion i, i, on the stud bearing j.
Figures 20, and 21, Sheet 10, represent and comprise a plan and end elevation of a
lathe head with two counter spindles c, and d, consisting of solid bars, the second
counter spindle d, placed above and between the main spindle b, and the counter
spindle e, and geared with change wheels a, placed upon the back ends of the counter
spindles c, d, and with a loose barrel or sleeve e, with a coupling flange f. The
change wheels a, can be employed to vary the speed and purchase of the lathe in con-
nection with wheels 1 and 2, and 6 and 7, with wheels 3, and 4 and 5, out of gear,.
or with wheels 1 and 2, 3 and 4, and 5 and 7, in gear and wheel 6 out of gear; or
the lathe can be driven by the ordinary double gear arrangement with wheels 1 and 2.
and 5 and 7, by coupling wheel 2 with the coupling flange f, and the change wheels a,.
and wheels 3 and 4 and 6 out of gear.
As illustrating the steps in the transmission of the driving motion in operating my
improved lathes I may here state that, as shown at Figure 1, Sheet 1, and Figure 13,
Sheet 7, there are three pairs of intermediate wheels marked 1 and 2, 3 and 4,
and 5 and 6, which are used to transmit the driving motion from the cone pulley g,
to the change wheels a; wheel 1, which is attached to the cone pulley g, revolving on
Wheel 3 gives
the main spindle b, gives motion to the loose barrel or sleeve e.
motion to the wheels 4 and 5, cast or placed together and which are free to revolve
on the main spindle b. Wheel 6, is keyed to the counter spindle c, and is driven by
the wheel 5. The change wheels a, convey motion from the counter spindle c, to the
main spindle b. The wheels 2 and 3, will slide out of gear and the cone pulley g,
can be attached to the wheels 4 and 5, and the lathe is worked with the wheels 5 and 6
and the change wheels a; and with or without the intermediate compound change
wheel and pinion i, i, in gear. And as seen at Figure 3, Sheet 2, and Figure 15,
Sheet 8, there are two pairs of wheels marked 1 and 2, and 3 and 4, which convey
motion from the cone pulley 9, to the second counter spindle d; the change wheels a,
transmit the driving motion from the second counter spindle d, to the first counter
spindle c. The wheel 5, driven by the first counter spindle c, gears with the wheel 6,
and actuates the main spindle b. By connecting the barrel or sleeve with the
coupling flanges f, the lathe can be worked with the ordinary back gear wheels 1
and 2, and 5 and 6, without the change wheels a, and without the intermediate
compound change wheel and pinion i, i, in gear.
e,
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed or carried into practical effect
I have to state in conclusion that my present invention does not apply to those lathes
in which purchase is obtained by means of a wheel or pinion gearing either
internally or externally with a wheel placed upon the back of the face plate, but
to those lathes in which the purchase is obtained and the speed and purchase are
regulated and varied by wheels placed within or between the bearings or upon the
ends or other parts of the different spindles or studs, and I declare that what I
claim is :-
1. The construction application and use of sliding, surfacing, screw-cutting, and
other similar lathes in which the end of the main spindle and the end of the
counter spindle project or extend beyond their back bearings and are fitted with
change cog or friction wheels of varying diameters gearing into each other or into
one or more compound change wheels and pinions placed on one or more studs
and which single or compound change wheels and pinions are so arranged as to
be changed by taking them off the spindles or studs upon which they are placed
and putting on change wheels of other suitable diameters which are put on in the
place of those taken off, for the purpose of regulating the speed of the main
spindle and the purchase of the lathes, substantially as hereinbefore described and
as illustrated on Sheets 1, 3, and 7, of the accompanying drawings, or any equivalent
modification thereof.

page_text: 2. The construction application and use of sliding, surfacing, screw-cutting and
other similar lathes in which two or more counter spindles, consisting of either
solid bars or hollow shafts or tubes, are placed and fixed in any convenient and
suitable position either parallel to or at an angle with the main spindle, and
arranged either separately or one within or through the other, fitted with single
or compound change cog or friction wheels of varying diameters placed either
upon the front or the back ends of the counter spindles extended beyond the
bearings which support and carry them at either end, or upon those parts of the
counter spindles within and between the said bearings or upon stud bearings,
which single or compound change wheels and pinions are so arranged as to he
changed by taking them off the counter spindles or studs upon which they are
placed and putting on change wheels of other suitable diameters which are put
on in the place of those taken off, for the purpose of regulating the speed of the
main spindle and the purchase of the lathes, substantially as herein before described
and as illustrated on Sheets 2, 4, 5, 6, 8, 9, and 10, of the accompanying drawing,
or any equivalent modification thereof.
3. The construction application and use of a loose barrel or sleeve in two or
more parts placed upon either the main spindle or upon the counter spindle of a
lathe, one part of which loose barrel or sleeve is connected to and driven by the
spindle upon which it is placed, and the different parts of the loose barrel or
sleeve can be connected or disconnected at will for the purpose of driving the
lathe from change wheels placed upon the projecting ends of the spindles or studs,
or from wheels placed within or between their bearings, substantially as herein-
before described, and as illustrated on Sheets 2, 5, and 8, of the accompanying
drawings, or any equivalent modification thereof.
Dated this 18th day of January 1890.
BRISTOW HUNT, R.P.A.,
Aldine Chambers, High Street, Sheffield, Agent for the Applicant.