An Improved Traverse Motion, applicable to the Commutator and Armature of Dynamos and Electric Motors.
Year: 1893

page_text: Date of Application, 5th July, 1893
Complete Specification Left, 21st Mar., 1894-Accepted, 5th July, 1894
PROVISIONAL SPECIFICATION.
An Improved Traverse Motion, applicable to the Commutator and
Armature of Dynamos and Electric Motors.
I, JOHN PEASE, of Valley Mills Apperley Bridge Yorkshire, Engineer do
hereby declare the nature of this invention to be as follows :-
There is a metal or wooden frame wherein revolves a worm-wheel that is driven
from the dynamo shaft, or by any available power. This worm-wheel is geared
into a suitable wheel with a crank, to which is attached a connecting-rod with an
oblong hole or slot in which the crank works. The connecting rod is then secured
to the shaft of the dynamo or electric motor, and can be arranged to cause the
armature and commutator to traverse any required distance backward and forward
as the shaft revolves.
This appliance can either be fixed upon the machine or in any convenient
position.
1000
COMPLETE SIECIFICATION.
An Improved Traverse Motion, applicable to the Commutator and
Armature of Dynamos and Electric Motors.
I, JOHN PEASE, of 6 Valley Terrace, Apperley Bridge, near Leeds, Yorkshire,
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 :-
This invention has reference to an improved traverse motion applicable to the
commutator and armature or to the brushes of dynamos and electric motors for
ensuring an equal action of the brushes over the surface of the commutator.
The improved traverse motion is represented on the accompanying drawings in
front elevation in Fig. 1,-in sectional elevation (through 1-1, Fig. 1,) in Fig. 2 ;-
in plan in Fig. 3; and in partial view in Fig. 4.
The improved traverse motion is constructed with a shaft a, supported by
bearings 6, carried by a frame c, which is preferably adapted to contain a supply
of oil d, (Fig. 2,) to lubricate the gearing.
On the shaft a, is keyed a pulley e, and a worm f, which latter gears with a worm
wheel g, loosely mounted on a shaft h, supported by the frame c.
To the worm
wheel is secured a toothed pinion i, which gears with a toothed wheel j, loosely
mounted on a shaft k, also supported by the frame c. To the wheel j, is secured a
toothed pinion, which gears with a toothed wheel m, loosely mounted on the shaft h.
The wheel m, is formed or fitted with slides n, in which a slotted crank-plate o, can
be adjusted and set by set-screws p, so as to regulate the throw of a crank pin q.
projecting from the plate o, according to the traverse desired to be imparted to the
armature and commutator or to the brushes of the dynamo, or electric motor. The
crank pin q, engages in a slot r, in a slide 3, which is supported by the frame c, and
is formed with an arm t, adapted for connection in any suitable manner with the
armature and commutator or with the brush-carrier.
for a
As represented in Figs. 1 to 3, the arm t, is formed with a bearing u,
spindle v, fitted with a pulley y, by which, and a connecting strap z, the pulley e,

page_text: may be driven from the dynamo shaft, into which the spindle v, may be screwed.
The pulley e, may, however, be driven from any other convenient shaft.
As represented in Fig. 4, the arm t, is connected to the brush carrier w, by a
-frame c.
The slides n, may be applied directly to the wheel g, so as to dispense with the
intermediate gearing i, j, l, m, according to the speed of traverse desired to be
obtained.
By the aforesaid means, the armature and commutator or the brushes may be
caused to traverse any required distance to-and-fro and at any required speed,
whereby an action of the brushes equally over the whole surface of the commutator
may be ensured, the traversing of the commutator and armature, if effected, also
-causing the journals of the shaft thereof to slide in their bearings, ensuring evenness
of wear.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
-claim is :-
The improved traverse motion herein before described, and the application thereof
to the commutator and armature or to the brushes of dynamos and electric motors.
Dated this 2nd day of June 1894.
DAY, DAVIES & HUNT,
Chartered Patent Agents,
London and Leeds, Agents for the Applicant.