AN IMPROVED SPRING MOTOR
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, HERBERT JOHN HADDAN, of the firm of Herbert and Company, Patent
Agents, of 67, Strand, in the City of Westminster, Civil Engineer, do hereby
declare the nature of said invention for "AN IMPROVED SPRING MOTOR," to be
as follows:-
The improved spring motor may be divided into a winding mechanism and the
motor proper.
In order to start the motor, it is necessary to turn a hand wheel on the axle of
which is keyed a pinion which transmits motion to another pinion mounted on a
shaft which passes across the casing enclosing the mechanism.
On this shaft is also mounted a small pinion, and on a shaft parallel thereto
is mounted loose a coupling wheel.
This coupling pinion is made to gear with the small pinion just mentioned, and
with a large tooth wheel fixed on a shaft passing through the spring casing.
The largo tooth wheel gears into a pinion mounted on a shaft carrying also a
ratchet wheel.
While the apparatus is being wound, the ratchet wheel made in one piece with
the pinion turns loosely on its shaft so as not to impart any motion to the rest of
the apparatus.
On the shaft of the ratchet wheel is also mounted a tooth wheel, which during
the working of the motor is coupled with the ratchet wheel by the pawls of the
same.
Tho large tooth wheel just mentioned imparts motion to a small pinion mounted
on a parallel shaft which also carries a tooth wheel gearing into a pinion.
On the shaft of this pinion is a tooth wheel gearing into another pinion fixed
on the shaft of a pulley placed outside the casing. .
The pinion on the pulley shaft is made in one piece with a drum over which
passes a metallic band, provided at one end with a handle and serving as a
brake. By placing the handle in different positions, the blade may be made tight
or loose, and thereby the speed of the motor regulated.
If used for driving a sewing machine, the motor is placed vertically under
the table of the same.

page_text: Where greater power is required, two motors of substantially the same con-
struction may be enclosed in the same casing and connected with each other.
On one of the shafts of the mechanism may be mounted a regulating fly wheel
made like an ordinary fly wheel surrounded at some dis: ance from the ring by a
second ring connected with the wheel by arms, so that movable weights may be
placed in the annular space left between the metal rings. Ench of these movable
weights is guided radially by a pair of rods surrounded by coiled springs adapted
to press on the weights from the outside. At the beginning of the motion the
weights are therefore placed near the inner ring, but as the speed increases, the
pressure of the springs is overcome by centrifugal force, so that the weights move
outwards towards these outer ring.
When the spring barrels and accessories are made in duplicate, they are made to
act alternately so that one is in full operation, while the other is being wound, in
order to secure a continuous motion.

page_text: I, HERBERT JOHN HADDAN, of the firm of Herbert and Company, Patent Agents,
67, Strand, in the City of Westminster, Civil Engineer, do hereby declare the
nature of my invention for AN IMPROVED SPRING MOTOR, and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
The improved spring motor may be divided into a winding mechanism and the
motor proper.
In order to start the motor, it is necessary to turn a hand wheel on the axle of
which is keyed a pinion which transmits motion to another pinion mounted on a
shaft which passes across the casing enclosing the mechanism.
On this shaft is also mounted a small pinion, and on a shaft parallel thereto is
mounted a loose coupling wheol.
This coupling pinion is made to gear first with the small pinion just mentioned,
and then with a large tooth wheel fixed on a shaft passing through the spring
casing. The large tooth wheel gears into a pinion mounted on a shaft carrying
also a ratchet wheel.
While the apparatus is being wound, the ratchet wheel made in one piece with
the pinion turns loosely on its shaft, so as not to impart any motion to the rest of
the apparatus.
On the shaft of the ratchet wheel is also mounted a tooth wheel, which during
the working of the motor is coupled with the ratchet wheel by the pawls of the
same.
The large tooth wheel just mentioned imparts motion to a small pinion mounted
on a parallel shaft which also carries a tooth wheel gearing into a pinion.
On the shaft of this pinion is a tooth wheel gearing into another pinion fixed on
the shaft of a pulley placed outside the casing.
The pinion on the pulley shaft is made in one piece with a drum over which
passes a metallic band, provided at one end with a handle and serving as a brako.
By placing the handle in different positions, the blade may be made tight or loose
and thereby the speed of the motor reguinted.
.
If used for driving a sewing machine, the motor is placed vertically under the
table of the same.
Where greater power is required, two motors of substantially the same con-
struction may be enclosed in the same casing and connected with each other.
On one of the shafts of the mechanism may be mounted a regulating fly wheel
made like an ordinary fly wheel surrounded at some distance from the ring by
a second ring connected with the wheel by arms, so that movable weights may be
placed in the annular space left between the metal rings. Each of these movable
weights is guided radially by a pair of rods surrounded by coiled springs, adapted
to press on the weights from the outside, at the beginning of the motion the
weights are therefore placed near the inner ring, but as the speed increases, the
pressure of the springs is overcome by centrifugal force, so that the weights move
outward towards the outer ring.
When the spring barrels and accessories are made in duplicate, they are made
to act alternately, so that one is in full operation, while the other is being wound,
in order to securo a continuous motion.
In the accompanying drawings which will serve to illustrate the mode of
performing this invention-Fig 1 is a front clevation, showing the interior of

page_text: the apparatus. Fig 2 is a side view. Fig 3 is a front view of the interior
showing the combination of the toothed wheel work serving to wind up the
apparatus. Fig 4 shows the new motor as applied to sewing machine. Fig 5
is a plan view of an arrangement of the motor adapted to give great power. Fig G
is a sectional plan view of the spring box showing the arrangement of the spring
and of the steel blades.
Fig 7 is a plan of the regulating fly.
The mechanism of this new system may be divided into two distinct parts viz:
Tho mechanism serving to wind up the said motor and the motor proper.
The motor is set in motion in the following manner.
By turning the fly wheel a provided with a handle and on the axle of which
is keyed a pinion b, motion is imparted to an intermediary pinion c which gears
into a small pinion & mounted on the axle e. On the axle e is also mounted
another small pinion f. g is a pinion loosely mounted on the axle h.
When the motor is wound up this pinion g is thrown in gear by means of the
small stud first with the small pinion f and then with a tooth wheel i mounted
on the arbor; the arbor passes through the casing m; the tooth wheel i
transmits its movement to the pinion n mounted on the arbor o; on the same
arbor o is also mounted a wheel p with pawls ?. During the winding up of the
apparatus, the wheel p which is rigidly connected with the pinion n runs loose
on the arbor o that is to say transmits no notion to the rest of the apparatus.
s is a tooth-wheel mounted on the arbor o; the moment the motor is set in
motion this wheels becomes rigidly connected with the wheel p by means of tho
'pawl r.
The tooth wheels transmits its motion by means of the intermediary pinion t to
the small pinion u mounted on the arbor u¹. On this arbor u is keyed a tooth
wheel v gearing into a pinion mounted on the arbor 21. y is a tooth wheel
mounted on the arbor 2', this wheel imparts its motion to the pinion a mounted on
the arbor x¹. a¹ is a transmission pulley mounted on the extension of the arbor x¹.
b' is a small drum made in one piece with the pinion ; over this drum passes a
blade c¹ connected with a rod d¹ terminating by a small knob e'. The blade c¹
serves as a brake, that is to say, by pressing or pulling more or loss the rod d¹ the
blade e more or less presses against the drum band in this manner increases or
diminishes the speed of the motor.
The whole of the mechanism is enclosed in a metal box, the sides of which are
connected by cross-bars.
This motor is placed vertically at the foot of a sewing machine fig 4 and may be
covered with a wooden casing.
Fig 5 represents an arrangement of two motors coupled with each other in case
it is necessary to produce more power.
It equally consists of a system for winding up consisting of a fly a and of a
train of gear wheels b imparting their motion by means of the pinion c and the
arbor d to a conical gearing c. This gearing transmits the motion by means of the
arbor fand a movable pinion g to the tooth-wheel mounted on the arbor k of
the casing i.
is a rod serving to throw the pinion g in or out of gear. The rest of the
mechanism consists in a combination of pinions and tooth wheels as represented in
the accompanying drawing fig 5. m brake drum, n knob of the brake. At the
end of the arbor d there is a regulating fly wheel o seen from the front in Fig 7;
this fly wheel consists of an ordinary fly wheel p cast in one piece with the pieces 1.
To these pieces is attached a metal ring 8; between this ring & and the Hy-
wheel are secured the rods t provided with helical springs; u are metal weights
freely sliding on the rods t.
At the beginning of the motion of the fly wheel p the weights u remain adhering
to the ring ? being maintained by the helical springs; when the speed of the
fly-wheel increases these weights tend to deviate from the centro owing to
centrifugal force; by deviating they increase the diameter of the fly-wheel p and

page_text: thereby regulate the motion of winding up and diminish the effort which would be
required for winding up if the fly-wheel were of ordinary construction.
By means of the arrangement represented by Fig 5 a continuous motion is
obtained. While the first spring casing which is wound up, produces the necessary
power, the other spring casing is at rest and may be wound up during the
working by means of the movement b itself for which purpose it is sufficient to
throw the pinion g' in gear with the wheel h¹.
This mechanism for winding up has no influence whatever on the working of
the motor, for it is entirely isolated from the compartment which works and
vicé-versa. The two apparatus can also be wound up together in the same
manner.
The arbors ff, k k', v vl, and s¹, are divided into two equal lengths and their
ends turn in the bearings y. This arrangement completely isolates the movement
of the two spring boxes i i¹.
The arbor is of one piece and its extension carries a fly-wheel and transmission
pulleys.
In this manner, when the first spring box i has supplied the necessary power it
is sufficient to throw the pinion g¹ out of gear whereupon the other spring-box i is
set immediately in operation. Fig C represents the construction of the blades of
the spring box.
On the arbor there is a core l¹ to which are secured the blades of the spring by
means of a bolt j. The number and the shape of these blades may vary according
to the power to be produced.
In the interior of the spring box m is situated a blade m³ which is thicker at
the joint n than at the stop j.
According to the power to be obtained auxiliary blades may be used in order to
give the spring the necessary strength to effect the uncoiling of the large blade m'.
In some cases the principal blade may be provided with longitudinal slots for the
purpose of increasing its elasticity see Fig 8.
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.
The combination in a mechanical motor of one or more spring boxes and a
system of gear wheels arranged so as to form a constant motor together with the
use of brakes or regulators substantially as described and illustrated and for the
purposes set forth.
H. J. HADDAN.
By Herbert & Co.,
Agents.