Improvements in Electric Motors for Driving Motor Carriages, Winches, and Stationary Machinery, also as a Portable Motor for Rotary Hair and Cleaning Brushes, for Drilling, Milling, and other purposes.
Year: 1897

page_text: Date of Application, 19th June, 1897
Complete Specification Left, 19th Apr., 1898-Accepted, 18th June, 1898
PROVISIONAL SPECIFICATION.
Improvements in Electric Motors for Driving Motor Carriages,
Winches, and Stationary Machinery, also as a Portable Motor
for Rotary Hair and Cleaning Brushes, for Drilling, Milling, and
other purposes.
I, HENRY WILLIAM HEADLAND, of The Firs, High Road, Leyton, in the County
of Essex, Electrical Engineer, do hereby declare the nature of this invention
to be as follows:-
These improvements apply to such electric motors in which the field magnets
and the armature rotate against each other both driving the same shaft.
The armature is fixed on the shaft and the field magnets are applied to a casing
or frame rotating freely on the shaft. On the casing is fixed a bevel or skew
wheel rim, and on the shaft is fixed a bevel or skew wheel; between the two I
provide a spindle fitted with two bevel or skew pinions which gear respectively
with the aforesaid wheel on the field magnet casing and with the whell on the motor
shaft; the inner end of this pinion spindle works in a bearing or standard wherein
the motor shaft turns. This bearing (and all the other bearings) is by preference a
ball bearing and is so arranged as to counteract the tendency of the spindle
moving endways either in or out. If the bevel wheel on the field magnet casing
is of the same diameter as the bevel wheel on the motor shaft or a continuation
of such wheel then one bevel pinion suffices for gearing with both. The other or
outer bearing of the pinion spindle is in or forming part of the aforesaid standard.
The motor shaft may be vertical, horizontal or slanting and the power may either
be taken off that shaft or off the pinion spindle. If I desire to drive two or
more machines from this motor I may employ two or more pinion spindles
passing off in different directions. And I may drive these spindles at different
speeds by providing bevel wheel rims of different diameters on the field magnet
casing and on the armature.
This motor is applicable to motor carriages, to the driving of stationary
machinery, winches and other machines, and as a portable motor to be held in
the hand by its casing, suitably adapted in shape for that purpose; in that form
it may for instance be used for drilling, milling, rock or blasting drills for rotary
hair brushes, cleaning brushes dentists tools and many other purposes. The
entire motor can be enclosed in a dust tight casing.
To vary the power, and especially for motor carriage work I may divide up
the field magnets for two or more circuits and provide suitable means for
connecting them variously.
Dated this Ninstmonth
T
100%

page_text: Improvements in Electric Motors for Driving Motor Carriages,
Winches, and Stationary Machinery, also as a Portable Motor
for Rotary Hair and Cleaning Brushes, for Drilling, Milling, and
other purposes.
I, HENRY WILLIAM HEADLAND, of The Firs, High Road, Leyton, in the County
of Essex, Electrical Engineer, do hereby declare the nature of this invention
and what manner the same is to be performed to be particularly described and
ascertained in and by the following statement: -
These improvements apply to such electric motors in which the field magnets
and the armature rotate against each other, both driving the same shaft.
The armature is fixed on the shaft and the field magnets are applied to a
casing or frame rotating freely on the shaft, bevel, skew, or worm wheel gearing
being arranged between the shaft and the field magnet casing or frame all as
hereinafter described.
In Fig. 1 which is a part sectional elevation supposing the motor shaft to be
vertical and Fig. 2 an end view without the framing, the armature A is fixed on
the shaft B and the field magnets are applied to a casing or frame C rotating
freely on the shaft. On the casing C is fixed a bevel wheel D, and on the
shaft B is fixed a bevel wheel E; between the two is provided a spindle F fitted
with two bevel pinions G and H which gear respectively with the aforesaid wheel D
on the field magnet casing and with the wheel E on the motor shaft B. The
inner end of this pinion spindle F works in a sleeve I (or standard) forming a
bearing for the spindle F which is thereby kept from moving endways either
in or out. The motor shaft B passes through this sleeve. The other or outer
bearing K of the pinion spindle F is in or forming part of the frame L wherein
the motor is held and the motor shaft B has its bearings at L1 and L2. The
bearings are all by preference ball bearings: the field magnet casing
has also by preference ball bearings where it works on the shaft B. One
shaft F is shown in full lines provided with a worm M which gears with a worm
wheel N on a spindle O, that inay be the axle of a motor car or one of the axles
of a tram car; and another spindle F1 shown in dotted lines similarly drives
a shaft O¹ by means of a worm M and worm wheel N¹. But obviously this arrange-
ment of gearing permits of driving a number of spindles like F radiating in
various directions. In the plan view Fig. 7 are as an example shown four such
spindles viz: FF1 F2 and F3; thus one motor may drive two or more machines
arranged around it. The brushes may be arranged as shown; the rings P and Q
serve for the current circuit.
In the side view Fig. 3 and plan view Fig. 4 is shown another arrangement in
which the motor frame L has pivots L³ and is suspended by the links R from say
the under side of a motor carriage frame.
In the arrangement shown in the end view Fig. 5 the motor shaft B is shown
horizontal and the spindle F fitted with a sprocket wheel S for chain driving
suitable for instance for a motor carriage.
Fig. 6 is a plan view of the motor with its shaft B vertical, suitable for working
a shaft F with a worm M for transmitting motion to a motor axle. When applied
to the driving of a tram car a spindle 1 shown in dotted lines is used, and the
framing L is continued as shown in dotted lines at LA.
In Fig. 7 as already referred to, four radiating spindles F F1 F2 and F3 are shown
for working a machine each.

page_text: Fig. 8 is a plan view, or it may be considered an elevation of a motor in which
the bevel wheel D on the field magnet casing gears with a bevel wheel G
on spindle F that by means of a spur wheel TT transmits motion to a spindle
F provided with a sprocket wheel S. On the armature shaft B is fixed a bevel
wheel E that gears with a bevel wheel H on a spindle provided with a
-sprocket wheel S. The bevel wheels D and-G and the bevel wheels E and H
are equally proportioned. It will thus be seen that the spindles F and F turn
in the same direction and at the same speed. This arrangement is for instance
applicable to motor carriages or tram cars.
The inner ends of the spindles F
and have their bearings in the sleeve I (or standard).
Fig. 9 is a sectional end elevation and Fig. 10 a part side elevation of another
arrangement in which the field magnet casing is continued into a sleeve upon
which is fixed or formed a worm D with a right handed thread, while upon the
armature spindle B is fixed or formed a worm E with left handed thread. These
worms gear with worm wheels G and H¹ respectively, on spindles F and F* and
upon the latter are mounted sprocket wheels S and S. These latter thus turn
in the same direction and at the same speed. Obviously skew wheel gear may be
substituted for worm and worm wheel gear.
In all the aforesaid cases the motor shaft B may be vertical, horizontal or
slanting, and the power may either be taken off that shaft or off one or more of
the spindles F. These spindles moreover may be driven at different speeds, by
providing bevel wheel rinis of different diameters on the field magnet casing and on
the armature; such an arrangement is indicated in Fig. 7.
This motor is applicable to motor carriages, to the driving of stationary
machinery, winches, and other machines, and as a portable motor to be held in
the hand by its casing, suitably adapted in shape for that purpose; in that form
(say for instance as shewn in Fig. 4) it may for instance be used for drilling,
milling, rock or blasting drills, for rotary hair brushes, cleaning brushes, dentists
tools, and many other purposes. The entire motor can be enclosed in a dust-
tight casing.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
In an electric motor in which the hub or nave of the field magnets runs loose on
the shaft and the armature is fixed on the shaft and both rotate in opposite
directions while driving the shaft.
1. The combination of a bevel wheel on the field magnet hub, a bevel wheel
on the armature shaft, a spindle arranged between the said two bevel wheels and
provided with bevel gearing engaging with the bevel wheel on the field magnet
hub and with the bevel wheel on the armature shaft, and suitable framing with
bearings for the armature shaft and the spindle substantially as set forth.
2. The combination of a bevel wheel on the field magnet hub, a bevel wheel
on the armature shaft, a plurality of spindles arranged radially between the said
two spindles and provided with bevel gearing engaging one or more of them with
the bevel wheel on the field magnet hub and one or more of them with the bevel
wheel on the armature shaft, and suitable framing with bearings for the armature
shaft and the radial spindles, substantially as set forth.
3. The combination of a bevel wheel on the field magnet hub, a bevel wheel on the
armature shaft, a spindle arranged between the said two bevel wheels and provided
with bevel gearing engaging with the bevel wheel on the field magnet hub and
the bevel wheel on the armature shaft, suitable framing with bearings for the
armature shaft and the spindle, said framing being pivotally suspended, so that
the motor can be oscillated, substantially as set forth.
4. The combination of a worm on the field magnet hub, a worm of opposite
pitch on the armature shaft a worm wheel on one spindle and a worm wheel on
another spindle gearing respectively with the said worms, and suitable framing

page_text: with bearings for the armature shaft and the worm spindles, substantially as
set forth.
5. The combination of a skew wheel on the field magnet hub, a skew wheel
of opposite pitch on the armature shaft, a skew wheel on one spindle and a skew
wheel on another spindle gearing respectively with the skew wheels on the field
magnet and on the armature shaft, and suitable framing with bearings for the
armature shaft and the spindles substantially as set forth.
6. The electric motor gearing arrangements shewn in the drawings.
1 1000
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.