Improvements in Electric Trolley Standards.
Year: 1899

page_text: Date of Application, 7th Sept., 1899
1000
PROVISIONAL SPECIFICATION.
Improvements in Electric Trolley Standards.
"
CHARLES WILLIAM GODSON LITTLE, Heckington, Lincolnshire, Electrical
Engineer, and ARTHUR JAMES IRELAND, "Glencoe," Mortlake Road, Kew,
Electrical Engineer, do hereby declare the nature of this invention to be as
follows:-
Our invention relates to an improved means of controlling the revolving cap
of an electric trolley standard. Our object is to provide means whereby the
revolving cap is free to make one complete or several revolutions round the trolley
standard in either direction and then to be prevented by means of stops from
turning any further in the same direction which will thereby admit of the employ-
ment of a continuous conducting cable within the standard and avoid the neces-
sity of a revolving electric contact while allowing the cap to make a sufficient
number of rotations for the convenient handling of the trolley pole.
We accomplish this by means of one or more loose collars according to the
number of rotations we wish the cap to be capable of making, which are placed
round the trolley standard.
These collars are provided with projecting stops. Suitable stops are also fixed
on the standard and on the revolving cap and so arranged that after one revolu-
tion of the cap its stop comes into contact with one of the stops on the first
moveable collar. The collar and cap are then free to turn together until a second
stop on the first collar comes into contact with a fixed stop on the standard which
will arrest further motion in that direction or with a stop on the second collar
whereupon the cap, first collar & second collar can all turn till a second stop on
second collar comes in contact with a fixed stop on the standard which will arrest
further motion in that direction or in contact with a stop on a third collar & so
on according to the number of rotations the cap is required to make.
L
1
11000
C. W. G. LITTLE.
A. J. IRELAND.
Improvements in Electric Trolley Standards.
CHARLES WILLIAM GODSON LATTLE, Heckington, Lincolnshire, Electrical
Engineer, and ARTHUR JAMES IRELAND, Glencoe, Mortlake Road, Kew,
Electrical 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:-
-
Our invention relates to an improved means of controlling the revolving cap
of an electric trolley standard. Our object is to provide means whereby the
revolving cap is free to make one complete or several revolutions round the trolley
standard in either direction and then to be prevented by means of stops from

page_text: turning any further in the same direction which will thereby admit of the employ-
ment of a continuous conducting cable within the standard and avoid the neces-
sity of a revolving electric. contact while allowing the cap to make a sufficient
number of rotations for the convenient handling of the trolley pole.
We accomplish this by means of one or more loose collars according to the
number of rotations we wish the cap to be capable of making, which are placed
round the trolley standard. These collars are provided with projecting stops.
Suitable stops are also fixed on the standard and on the revolving cap and so
arranged that after one revolution of the cap its stop comes into contact with one
of the stops on the first moveable collar, the collar and cap are then free to turn
together until a second stop on the first collar comes into contact with a fixed
stop on the standard which will arrest further motion in that direction, or with
a stop on the second collar whereupon the cap first collar and second collar can
all turn till a second stop on second collar comes in contact with a fixed stop on
the standard which will arrest further motion in that direction or in contact with
a stop on a third collar and so on according to the number of rotations the cap
is required to make.
To more clearly ascertain our invention we will describe the same with reference
to the attached drawings.
Fig. 1 shows a section of a part of a trolley standard in which the collar cr
collars may be fixed.
A & B represent two collars or rings which are fitted round the main standard L.
CEF & G are stops attached to these collars or rings.
D is a stop attached to the main standard L and H is a stop attached to the
revolving cap J.
K is one of the balls of the ball bearing on which the cap J may revolve.
Fig. 2 shows a sectional elevation & plan of the upper collar or ring and
Fig. 3 shows a sectional elevation & plan of the lower collar or ring.
If in Fig. 1 the revolving cap J be turned in the direction of the arrow it
will be able to make almost one revolution before the stop H comes in contact
with the collar stop G. The cap & collar A will then be able to together turn
until stop F comes in contact with stop E whereupon the cap J and both collars
can still revolve in same direction until stop C comes in contact with stop D
when further motion in that direction will be arrested. Thus it will be seen
that any number of revolutions of the cap can be obtained before being arrested by
inserting a sufficient number of collars or rings provided with stops similar to
Fig. 2.
We wish it to be understood that the method we have described is only one
way of carrying out our invention and that the same end may be achieved by
placing the collars or rings on the outside of the cap around the standard, or the
rings may be made narrower and fixed one within the other.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that what
we claim is:-
The combination with an electric trolley standard of one or more collars or
rings provided with stops which collars or rings are free to revolve until arrested
by a stop or stops fixed to the cap and main standard of the trolley standard.
For the purpose and substantially as described.
Dated this fith day of June 1900