Improvements in Machinery or Apparatus for Transmitting Motion from Electric Motors to other Machinery.
Year: 1897

page_text: Improvements in Machinery or Apparatus for Transmitting Motion
from Electric Motors to other Machinery.
I, JOSEPH WHITWORTH HULSE, of Ordsal Works, Salford, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
As the shaft or spindle of an electric motor usually runs at too high a speed for
driving some machine tools and other machinery direct, the speed of the motor
has to be reduced before reaching the machine to be driven.
Now, this invention has reference to an improved construction and arrangement
of apparatus for transmitting a constant or variable motion from an electric
motor to other machinery, such as machine tools, wherein the motion of the motor
shaft is transmitted to a driving shaft of the machine through helical or straight
toothed gearing and a subsidiary shaft carried by or placed conveniently near
the machine.
In the case of a machine tool such as a lathe, the electric motor may be placed
conveniently near to the fast headstock, or it can be mounted on a cross beam or
plate supported at its ends by the front and back bearings respectively of the
main spindle in the fast headstook.
Suitable helical or straight toothed gearing is provided between the subsidiary
shaft and the motor shaft and also between the subsidiary shaft and the lathe
spindle for rotating the lathe spindle at the desired speed and mechanism is pro-
vided for quickly and easily effecting the changes from one speed to another.
The motor used for driving the machine may also be used for producing the
various traverse motions that may be required, by providing suitable helical or
straight toothed gearing, clutches and the like between the subsidiary shaft and
the shafts which impart the said traverse motions.
In one arrangement of combined motor and lathe the subsidiary shaft is
arranged below and to one side of the motor shaft which is carried in bearings upon
a cross beam fixed to the top of the end brackets of the fast headstock. Below
the subsidiary shaft and geared thereto by one or more pairs of toothed wheels
is the first motion shaft of the lathe which is adapted to be geared by one or
other of two or more pairs of toothed wheels with a second motion shaft which
is arranged below the first motion shaft the several pairs of wheels being made
of different sizes and adapted to be thrown in or out of gear at will so that the
motion of the machine can be varied or arrested as may be desired. The first
motion shaft is geared to the face plate. Below the fast headstock and in the
D.. 017

page_text: bed of the machine is a longitudinal rotary shaft. A feed or slow traverse motion
can be imparted to it from the main spindle through change wheels carried by a
swing frame and driving a tube or sleeve keyed upon a short shaft arranged in line
with the longitudinal rotary shaft and adapted to be connected thereto by a clutch
arranged to slide endway upon and rotate with the said shaft. A quick traverse
motion can be imparted to longitudinal 10tary shaft from the first motion shaft
through toothed wheels of which there may conveniently be three one of which
is mounted on a short longitudinal or counter shaft so that it can be thrown in
and out of gear with a toothed wheel on the said first motion shaft and another
of which is mounted on the said longitudinal rotary shaft and is adapted to be
connected thereto by the said clutch. The arrangement is such that by operating
the clutch the said longitudinal shaft can be rotated at a slow speed from the main
spindle and from the first motion shaft for quick traverse, or can be brought to
rest, at will.
Improvements in Machinery or Apparatus for Transmitting Motion
from Electric Motors to other Machinery.
We, WILLIAM PERCY DRABULE, of 86, King Street, Manchester, in the County of
Lancaster, Merchant, and FREDERICK EDMUND BRACEWELL, of 144, Princess Street,
Manchester aforesaid, Hardware Merchant, Executors of the late Joseph Whit-
worth Hulse, of Ordsal Works, Salford, in the County of Lancaster, 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-
As the shaft or spindle of an electric motor usually runs at too high a speed for
driving some machine tools and other machinery direct, the speed of the motor
has to be reduced before reaching the machine to be driven.
Now this invention has reference to an improved construction and arrangement
of apparatus for transmitting a constant or variable motion from an electric
motor to other machinery, such as machine tools, wherein the motion of the motor
shaft is transmitted to a driving shaft of the machine through helical or straight
toothed gearing and a subsidiary shaft carried by or placed conveniently near
the machine.
In the case of a machine tool such as a lathe, the electric motor may be placed
conveniently near to the fast headstock, or it can be mounted on a cross beam
or plate supported at its ends by the front and back bearings respectively of the
main spindle in the fast headstock. Suitable helical or straight toothed gearing is pro-
vided between the subsidiary shaft and the motor shaft and also between the sub-
sidiary shaft and the lathe spindle for rotating the lathe spindle at the desired
speed and mechanism is provided for quickly and easily affecting the changes
from one speed to another. The motor used for driving the machine may also be
used for producing the various traverse motions that may be required, by pro-
viding suitable helical or straight toothed gearing, clutches and the like between
the subsidiary shaft and the shafts which impart the said traverse motions.

page_text: Figs. 1 and 2 of the accompanying illustrative drawings show in end and side
elevation respectively, one arrangement of combined motor and lathe according
to this invention. In this arrangement 1 is the subsidiary shäft arranged below
and to one side of the shaft 2 of the electric motor 2. The motor shaft 2 is
carried in bearings 3, 3, upon a cross beam 4 fixed to the top of the end brackets 5,
5 of the fast headstock 6. The motor shaft operates the subsidiary shaft through
the gear wheels 7, 8 and 9. Below the subsidiary shaft 1 and geared thereto by
one or more pairs of toothed wheels (two pairs 10, 11 and 12, 13 are shown) is the
first motion shaft 14 of the lathe which is adapted to be geared by one or other of
two or more pairs of toothed wheels, of which three pairs riz.: 15-16, 17-18
and 19-20 are shown, with a second motion shaft 21 which is arranged below the
first motion shaft 14, the several pairs of wheels being, as shown, made of different
sizes and adapted to be thrown in or out of gear at will so that the motion of the
machine can be varied or arrested as may be desired. For this purpose, in the
example shown, the wheels 12, 13, 15 and 17 are fixed upon a sleeve 14 mounted
to rotate on the first motion shaft 14 to which the wheel 19 is keyed, and the
wheels 10, 11, 16, 18 and 20 are feathered to but are movable endways upon their
respective shafts so that they can be readily thrown in and out of gear with the
adjacent wheels 12, 13, 15, 17 and 19 respectively. The said first motion shaft 14
is provided at its front end with a pinion 22 for driving the face plate 23 in a
manner well understood. The tubular shaft 14 has keyed to it a disc 14 by
which it can be directly connected with the toothed wheel 19 and thus with the
shaft 14,-When the shafts 14 and 14" are disconnected motion can be transmitted
from one to the other only indirectly, either through the wheels 15, 16 or the
wheels 17, 18 to the second motion shaft 21 and thence by the wheels 20, 19,
shaft 14 and pinion 22 to the face plate 23 in the ordinary way.
Below the fast headstock 6 and in the bed 24 of the machine is a longitudinal
rotary shaft 25. A feed or slow traverse motion can be imparted to it from
the main spindle 26 in the ordinary way through change wheels carried by a swing
frame and driving a tube or sleeve keyed upon a short shaft arranged in line
with the said longitudinal rotary shaft and adapted to be connected thereto by
a suitable clutch arranged to slide endway upon and rotate with the said shaft,
as for example in the manner described in the Specification of Letters Patent
No. 11088 of 1894 granted to W. W. Hulse. A quick motion for traverse can be
imparted to the longitudinal rotary shaft 25 from the first motion shaft 14 through
the said clutch and toothed wheels of which there may conveniently be three viz.;
27, 28 and 29, one of which (27) is mounted on a short longitudinal or counter
shaft 30 so that it can be thrown by means of a lever 30 and fork 30b in and out
of gear with the toothed wheel 13 on the sleeve 14ª of said first motion shaft 14
and with the wheel 29 which is mounted to turn on the said longitudinal rotary
shaft 25 and is adapted to be connected thereto by the said clutch. The arrange-
ment is such that by operating the clutch the said longitudinal shaft 25 can be
rotated from the main spindle 26 for slow speed, and from the sleeve 14ª on the
first motion shaft 14 for quick traverse, or can be brought to rest at will.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed we declare that what
we claim is:-
1. For transmitting a constant or variable motion from an electric motor to
another machine, the combination with the motor and the main driving shaft of
the machine, of a subsidiary shaft driven from the motor shaft, a first motion
shaft geared to the driving shaft or spindle of the machine to be driven, one or
more pairs of toothed wheels adapted to connect the said subsidiary shaft with the
scid first motion shaft, a second motion, and pairs of toothed wheels con-
necting the first motion shaft with the second motion shaft, the wheels of each of
the aforesaid pairs being capable of being put in or out of engagement with each
other for the purpose of effecting the changes from one speed to another, substan-
tially as hereinabove described with reference to the accompanying drawings.

page_text: 2. Apparatus for transmitting motion from electric motors to other machinery
such as lathes, constructed, arranged and operating as herein before described with
reference to and shown in the drawings annexed.
2. Apparatus for transmitting motion from electric motors to other machinery
such as lathes, constructed, arranged and operating as herein before described with
reference to and shown in the drawings annexed.
Dated this 23rd day of June 1898.
For the Applicant,
W LLOYD WISE