Improvements in Starting Apparatus for Vehicles.
Year: 1891

page_text: Date of Application, 4th Feb., 1891
Complete. Specification Left, 13th Sept., 1891-Accepted, 24th Oct., 1891.
PROVISIONAL SPECIFICATION.
Improvements in Starting Apparatus for Vehicles.
I, SAMUEL LEENDERT HUIZER, of The Hague, Holland, do hereby declare the
nature of this invention to be as follows:-
My invention relates to a starting device for road vehicles generally though it is
more particularly applicable to horse tram cars and as applied to such it is
described and illustrated in the accompanying drawings in which ;-
Figure 1 represents the apparatus when the car is at rest or in full motion.
Fig. 2 shows a portion of same when the car has just started.
Fig. 3 shows the apparatus when the car is fully started.
Fig. 4 is a section of the pedal arrangement by which the driver allows the
apparatus to be operated, and Figure 5 is a plan of same.
Upon the axle of the wheel is keyed a drum or pulley A. made in halves so that
it may be mounted on an ordinary axle. This pulley A is.encircled by a band or
ring B also in halves which are bolted together the ring being capable of free
movement on the drum or pulley. This ring B'has two ears o o' (one of which only
is shown) between which is pivoted on a pin aa lug K said lug having a heel
piece Kin which is fitted a block or shoe of wood or like material the surface of
which is somewhat roughened and in this. respect corresponds with the periphery of
the pulley A. The ring B has also another ear R on either side of which are
pivoted parallel bars D or links (one only of which is shown). The other
ends of said bars are pivoted to the short arm E of a bell crank lever E, to the
long arm G of which is connected the draw bar M. whose other end is furnished
with a yoke M' to which is attached by a pin the usual trace bar.
A spring His attached at one end to the point of the arm G of the lever F
and at the other end to the draw bar M at the point c by means of a screw threaded
nut to which it is hooked, said nut being capable of adjustment.on the bar. This
spring tends to keep the apparatus in the position shown in Figure 1 when the car
is at rest and to bring it back to that position as soon as the car has attained its
regular speed.
The lever F has an arm.L which holds up the lug K when the apparatus is not
at work. On the driver's platform. is arranged a pedal S which on being pressed
down operates on the short arm of the lever N, the long arm of which is connected
at the other end with a linch pin P, and serves to raise it out of a slot cut in the
draw bar M in which it engages when the car is at rest. The draw bar M is
supported and guided by, a friction roller Q. The apparatus operates as follows:-
As soon as the horse commences to pull the driver presses on the pedal. S and
withdraws the linch pin P so that the bar M is drawn out, the bell.crank lever F
being brought into the position shown in Figure 2 up to which moment the car has
not moved. The result of this motion is that the.lug K is no longer supported by
the arm L and tumbles over so that its shoe is brought into frictional contact with
the periphery of the pulley A. In continuing the forward movement the operations
of the draw bar M bell crank lever F and connecting rods or links D press the
shoe against the circumference of the pulley and draw the pulley A round and with
it the axle and wheels of the car.
According to the proportions given.to the two arms of the bell crank lever it
will be seen that the initial action of the horse is proportionately very sensibly
increased upon the axle so that the starting is effected with much, less effort by the
animal

page_text: This increase of the movement decreases with the advancement of the draw bar
until the wheels have a speed equal to that of the horse when the parts will be
brought into the position shown in Figure 3 when the heel plate K¹ and its shoc
having reached the bottom of the pulley cease to exert any pressure on the latter
and the axle and pulley turn freely in the ring B.
As soon as the traces are a little released or the horse slackens up the draw
bar M recedes beneath the car by the action of the spring I so that the parts are
brought back into the first position. When the draw bar has been completely
drawn back and the slot formed therein presents itself below the bolt or linch
pin P the latter drops therein and the car is thereafter drawn directly from
this pin.
It will be evident that for cars worked from both ends two of the above
arrangements of parts are required. The apparatus it will also be seen will also
act as a brake where the car is on a slope and commences to run backward..
Dated this 4th day of February 1891.
S. L. HUIZER,
By L. W., per F. B.
I, SAMUEL LEENDERT HUIZER of The Hague, Holland, 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:—
My invention relates to a starting device for road vehicles generally though it is
more particularly applicable to horse tram cars and as applied to such it is herein-
after described.
Referring to the drawings filed with my Provisional Specification
Fig. represents the apparatus when the car is at rest or in full motion.
Fig. 2 shows a portion of same when the car has just started.
Fig. 3 shows the apparatus when the car is fully started.
Fig. 4 is a section of the pedal arrangement by which the driver allows the
apparatus to be operated, and Fig. 5 is a plan of same.
Upon the axle of the wheel is keyed a drum or pulley A. made in halves so that
it may be mounted on an ordinary axle. This pulley A is encircled by a band or
ring B also in halves which are bolted together the ring being capable of free
movement on the drum or pulley. This ring B has two cars oo (one of which
only is shown) between which is pivoted on a pin aa lug K. said lug having a heel
piece K in which is fitted a block or shoe of wood or like material the surface of
which is somewhat roughened and in this respect corresponds with the periphery
of the pulley A. The ring B has also another ear R on either side of which are
pivoted parallel bars D or links (one only of which is shown). The other ends
of said bars are pivoted to the short arm E of a bell crank lever F, to the long
arm G of which is connected the draw bar M whose other end is furnished with a
yoke M to which is attached by a pin the usual trace bar.
A spring His attached at one end to the point of the arm G of the lever F
and at the other end to the draw bar M at the point by means of a screw threaded
nut to which it is hooked, said nut being capable of adjustment on the bar. This
spring tends to keep the apparatus in the position shown in Figure 1 when the car
is at rest and to bring it back to that position as soon as the car has attained its
regular speed.
The lever F has an arm L which holds up the lug K when the apparatus is not
at work. On the driver's platform is arranged a pedal S which on being pressed
down operates on the short arm of the lever N, the long arm of which is connected
at the other end with a linch pin P, and serves to raise it out of a slot cut in the

page_text: draw bar M in which it engages when the car is at rest. The draw bar Mis
supported and guided by a friction roller Q. The apparatus operates as follows:
As soon as the horse commences to pull the driver presses on the pedal S and
withdraws the linch pin P so that the bar M is drawn out, the bell crank lever F
being brought into the position shown in Fig. 2 up to which moment the car has
not moved. The result of this motion is that the lug K is no longer supported by
the arm L and tumbles over so that its shoe is brought into frictional contact with
the periphery of the pulley A. In continuing the forward movement the operations
of the draw bar M bell crank lever F and connecting rods or links D press the
shoe against the circumference of the pulley and draw the pulley A round and with
it the axle and wheels of the car.
According to the proportions given to the two arms of the bell crank lever it
will be seen that the initial action of the horse proportionately very sensibly
increased upon the axle so that the starting is effected with much less effort by the
animal.
This increase of the movement decreases with the advancement of the draw bar
until the wheels have a speed equal to that of the horse when the parts will be
brought into the position shown in Fig. 3 when the heel plate K¹ and its shoe
having reached the bottom of the pulley cease to exert any pressure on the latter
and the axle and pulley turn freely in the ring B.
As soon as the traces are a little released or the horse slackens up the draw
bar M recedes beneath the car by the action of the spring H so that the parts are
brought back into the first position. When the draw bar has been completely
drawn back and the slot formed therein presents itself below the bolt or linch
pin P the latter drops therein and the car is thereafter drawn directly from
this pin.
It will be evident that for cars worked from both ends two of the above arrange-
ments of parts are required. The apparatus it will also be seen will also act as a
brake where the car is on a slope and commences to run backward.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed declare that what I
claim is :-
1. In a starting apparatus for vehicles and in combination, a drum affixed to the
axle, a ring working on same, a shoe pivoted to the ring to act on said drum, an
unequal armed lever connected to the ring and adapted to operate the shoe, a draw
bar connected to the other arm of the lever, and means for retracting and for
securing the draw bar substantially as described.
2. In a starting apparatus and in combination, a drum affixed to the axle, a ring
working on same, a lug carrying a shoe pivoted to the ring, a bell crank lever F,
having an arm L adapted to operate the lug, links connecting the lever F and the
ring, a draw bar connected to the lever F, a spring for retracting said draw bar,
and a linch pin operated by the driver for releasing and securing the draw bar
substantially as described.
S. L. HUIZER,
By L. W., per F. B.