Improvements in Starting Gear for Explosion Engines or Motors.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Starting Gear for Explosion Engines or Motors.
I, FREDERICK RICHARD SIMMS, of Amberley House, 12, Norfolk Street, Strand,
in the County of London, Engineer, do hereby declare the nature of this invention
to be as follows -
This invention relates to improvements in starting gear for explosion engines
or motore.
According to the invention I provide upon the crank-shaft or the half speed
or counter-shaft of the motor a clutch device so arranged that when the said'
clutch is operated by any suitable 'means the crank shaft is turned and the
motor is started, the clutch being automatically put out of gear when the motor
starts.
In carrying out the invention I advantageously key upon the crank-shaft or
counter-shaft of the explosion engine or motor a collar having a number of
notches or grooves so as to form a kind of ratchet and upon the outside of this
collar I loosely mount a second collar, a ball or roller is inserted in each notch
or groove between the two collais the arrangement being such that when the
outer sleeve is rotated by any suitable means the balls or rollers are caused to
grip between the two collars so as to turn the inner collar with the outer thereby.
rotating the crank-shaft and starting the engine.
To turn the outer collar I advantageously employ a cord or the like which is
coiled around a groove provided upon the outer collar to which it is secured at
one end, the said cord being preferably provided at the other end with a handle
whereby upon pulling the cord the outer collar 18 rotated thus causing it to
grip the inner collar through the medium of the rollers and turn the crank-
shaft.
It will be obvious that as soon as the engine starts running the inside collar
is turned by the crank-shaft so that it runs away from the outer collar.
I find it advantageous to provide a spring for returning the outer collar to
its normal position when the cord is released, the said spring being preferably
placed internally so as to be free from dirt and dust and to avoid the risk of
being caught in any other portion of the gear.
Dated the 23rd day of Dasambor 1900

page_text: I, FREDERICK RICHARD Snus, of Amberley House, 12, Norfolk Street, Strand,
in the County of London, 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 relates to improvements in starting gear for explosion engines
or motora.
According to the invention I provide upon the crank-shaft or the half speed
or counter-shaft of the motor a clutch device so arranged that when the said
olutch is operated by any suitable means the crank shaft is turned and the
motor is started, the clutch being automatically put out of gear when the motor
starts.
In carrying out the invention I advantageously key upon the crank-shaft or
counter-shaft of the explosion engine or motor a collar having a number of
notches or grooves so as to form a kind of ratchet and upon the outside of this
collar I loosely mount a second collar; a ball or roller is inserted in each notch
or groove between the two collars, the arrangement being such that when the
outer sleeve 18 rotated in one direction by any suitable means the balls or rollers
are caused to grip between the two collars so as to turn the inner collar with
the outer thereby rotating the crank-shaft and starting the engine.
To turn the outer collar I advantageously employ a cord or the like which is
coiled around a groove provided upon the outer collar to which it is secured at
one end, the said cord being preferably provided at the other end with a handle,
whereby upon pulling the cord the outer collar is rotated thus causing it to
grip the inner collar through the medium of the rollers and turn the crank-
shaft.
It will be obvious that as soon as the engine starts running the inside collar
is turned by the crank-shaft so that it runs away from the outer collar.
I find it advantageous to provide a spring for returning the outer collar to
its normal position when the cord is released, the said spring being preferably
placed internally so as to be free from dirt and dust and to avoid the risk of
being caught in any other portion of the gear.
In the accompanying drawing,-
Figure 1 is a longitudinal section of starting gear made according to the
invention, the said gear being shewn applied to an explosion engine; and
Figure 2 18 a section on the line 2-2 Figure 1
18 the collar which 18 keyed upon the shaft 6 of the motor, the said collar
being formed with teeth a', a, as clearly shewn in Figure 2, which thus form a
number of notches or grooves a³, a² c is the second collar which is loosely
mounted upon the shaft 6, the said collar being made with a flange d forming
upon its outer face or periphery a grooved pulley d and extending over the
fixed collar a as clearly shewn.
e, e are the rollers placed in the notches or grooves formed between the
teeth a', a of the collar a Instead of rollers, balls may be used.
fis the cord which is wound around the pulley groove d' upon the collar c,
the said cord f being secured at one end to the said collar and being preferably
provided at the other end with a handle not shewn in the drawing. g is a
spring which is connected to the collar e and to some fixed point in the motor,
the object of this spring being to return the said collar to its normal position
after the cord is released

page_text: With this arrangement to start a motor the cord is pulled in the direction
indicated by the arrow, Figure 2, so as to turn the collar idly upon the shaft b
until the rollers become moved into the position indicated in the said Figure 2,
in which position they are gripped between the grooves in the collar a and the
inner periphery of the flange d so that the said collar a and thereby the shaft b
of the motor are rotated with the loose collar c When the motor is started
the shaft b outruns the collar c and the clutch is thereby disengaged.
It will be obvious that although I have described and illustrated starting gear
having a roller and groove clutch I can employ any other kind of clutch suitable
for the purpose
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:-
1. Starting gear for explosion engines or motors comprising a clutch mounted
upon the crank shaft or counter shaft of the motor, the said clutch being so
arranged that when it is operated by suitable means the shaft is turned, the motor
started and the clutch automatically put out of gear, substantially as, and
for the purpose, hereinbefore described.
2. The combination with an explosion engine or motor of a clutch mounted
upon the crank or counter shaft of the said motor, of means for operating the
said clutch and of means for automatically disengaging the said clutch when the
motor is started, substantially as, and for the purpose, hereinbefore described
3. The manufacture and use of the improved starting gear for explosion
engines or motors constructed substantially as hereinbefore described and illus-
trated in the accompanying drawing.
Data L
ea
1
1000
G F. REDFERN & Co,
4, South Street, Finsbury, London, Agents for the Applicant.