A. NEW OR IMPROVED APPARATUS FOR OBTAINING and APPLYING MOTIVE POWER
Year: 1876

page_text: LETTERS PATENT to Ernest de Pass, of Fleet Chambers, 68, Fleet Street, in
the City of London, Patent Agent, for the Invention of "A. NEW OR IMPROVED
APPARATUS FOR OBTAINING and APPLYING MOTIVE POWER." A communi-
cation from abroad by Gaston Eugène Elie Bozérian, of 17, Boulevart Saint
Martin, Paris, France.
Sealed the 6th April 1877, and dated the 23rd October 1876.
PROVISIONAL SPECIFICATION left by the said Ernest de Pass at the Office
of the Commissioners of Patents on the 23rd October 1876.
ERNEST DE PASS, of Fleet Chambers, 68, Fleet Street, in the City of London,
Patent Agent.
'A NEW OR IMPROVED APPARATUS FOR OBTAINING AND APPLYING
MOTIVE POWER." Communicated from abroad by Gaston Eugène Elie Bozérian, of
17, Boulevart Saint Martin, Paris, France.
This Invention relates to a new or improved apparatus for obtaining and applying
motive power, which I call "baro-motor," and it has for object the utilization of the
weight of the human body acting as the motive power. For this purpose I mount
two foot boads resting on a system of five levers (three upper and two lower) in
bearings which are secured to a base plate or platform, and four of these levers are
so arranged as to form two parallelograms in connection with upright supports to
which the footboards are secured. The fifth lever serves to transmit the movement
to the instrument or apparatus to be set in motion. The upper levers rest on an
axis held in the bearings, and are capable of pivoting freely; the lower ones are
pivoted at their centeres on gudgeons or axes in the bearings. The operator stands
with one foot on each footboard, and by raising successively each heel so that the
toe of the foot of which the heel is raised rests but slightly on its footboard, this
simple alternate movement displacing the weight of the body suffices to put the
apparatus in motion and thus obtain movement. The movement can be transmitted
by lengthening either one of the upper or one of the lower levers according to the
purpose for which this apparatus is to be employed.
When increased power is required cords or chains provided with handles are
attached to rings secured on each side of the platform, and on being drawn by the
operator a further muscular effect is produced and increased power obtained.
[Price 6d1

page_text: This apparatus instead of being a separate or independeant one may be attached
to or combined directly with the instrument or apparatus which it is to set in motion.
Amongst one of its applications it is useful for watering gardens, one person being
able to perform the work of three others, as by the movement of the feet as much
power is obtained as by the manual labour of two persons, and as the person working 5
this apparatus has both the hands free they can be employed to direct the nozzle of
the water pipe, and thus doing the work of the third person.
Instead of using five levers three may be employed.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Ernest de Pass in the Great Seal Patent Office on the 10th April
1877.
ERNEST DE PASS, of Fleet Chambers, 68, Fleet Street, in the City of London,
Patent Agent.
"A NEW OR IMPROVED APPARATUS FOR OBTAINING AND APPLYING
MOTIVE POWER." Communicated from abroad by Gaston Eugène Elie Bozérian, of
17, Boulevart Saint Martin, Paris, France.
This Invention relates to a new or improved apparatus for obtaining and applying
motive power, which I call "baromotor," and it has for object the utilization of the
weight of the human body as motor by displacing the centre of gravity.
The apparatus is composed of two footboards resting on three levers moveable at
the centre and forming treadles. The middle lever should be higher or lower than
the other two, so as to keep the footboards in an always horizontal position. The
operator places himself on top, having one foot on each footboard, and balances
himself before and behind, or from right to left, and reciprocally in such manner as
to bring the whole weight of his body on each footboard successively; a movement
is thus produced which can be utilized either direct or be converted into circular
movement.
The accompanying Drawings illustrate the mode of carrying the Invention into
practical effect.
Figures 1 and 2 represent the "baromotor" applied to a discharge pump.
86
A, B, are the treadles or footboards which are fixed to the levers C, D, E. The
operator places his feet on these footboards, the left foot being placed on the one
marked A, and the right foot on the one marked B, and in such way as to have
them at right angles, as shewn in plan Figure 2; then to support himself during
the rocking or swinging from before and behind he holds in the right hand the
upper end of the vertical bar a which is fixed at its lower part to the platform sup-
porting the
baromotor" and pump. When the operator feels fatigued from
working in this position he turns round, changes his feet on the footboards, and
then holds by the left hand the vertical rod α. The middle lever D works the con-
necting rod F which actuates the piston of the pump X. The lever G may be
brought forward or placed backward according to the height to which the water is
to be raised. The whole of the apparatus is mounted on a wheelbarrow or hand
cart for facility of transport. This system of treadles can be applied to any pump
by being fixed either at the side or above it.
Figures 3 and 4 represent a "baromotor" in which the movement of the treadles
is converted into continuous circular movement. To the middle lever two con-
necting rods A, B, are fixed and work two forks C, D, which by means of pawls
pressed by a spring turn the ratchet wheels E, F; the lower extremities of these
two connecting rods A, B, encounter at the lower points of their course sheets of
caoutchouc placed on the lower part of the framework to deaden the shocks, and to
send back by their elasticity these connecting rods just at the same moment they
begin to rise up. On the shaft of the ratchets are keyed two toothed wheels G, H,
in gear with each other (the ratchets being smaller than these wheels). A pinion J

page_text: is in gear with one of these toothed wheels. The shaft of this pinion has on one
side a fly wheel Z, and on the other a pulley Y which transmits power to the
machine to be set in movement.
In the example described it is seen that the footboards are arranged in the same
direction, also that the operator can place his feet thereon in the positions shewn in
plan, Figure 4, and work the apparatus by balancing himself from right to left, and
from left to right. A bar M terminating in a handle permits the operator to.
support himself.
When it is desired to increase the power the chains must be detached from the
handle N and fixed in the holes O, P, in the lever Q, and the operator then takes in
his hands the handles which are hooked on to the ends of these chains; or these
chains may be fixed to the ground or to the frame of the apparatus.
Instead of one bar there may be two fixed to the ground at B and y and ter-
minate in vertical handles, so that the operator by placing his feet at right angles
on the treadles can also work the apparatus by balancing himself from before to
behind, and from behind to before, as already explained, with respect to the pump
shewn at Figures 1 and 2.
When the operator brings forward the weight of his body towards the right he
turns the ratchet wheel E in the direction of the arrow K, and the wheel G will then
turn in the same direction, and will turn the wheel H and consequently the ratchet
wheel F in the direction of the arrow L, at the same time the fork D will be raised.
The operator then bringing forward his weight towards the left this same fork D
will continue to turn the ratchet wheel F in the direction of the arrow L, and the
movement will continue always in the same direction.
Figures 5 and 6 represent a "baromotor" for two operators, in which they place
their feet on the footboards in any of the ways already described, and converting
the movement communicated to the treadles into a reciprocating circular movement.
The operators act on the ratchet wheels, as herein-before described. It must be
remarked that they are independent of each other, and that the two forces are
added without their movements being in concert. The wheels A and B which are
in gear with each other turn the shafts C, D, always in the contrary direction. To
the shaft C is keyed a toothed wheel E in gear with a wheel G which is loose on
the shaft J, also with the part of the disengaging gear to which it is fixed. The
wheel F keyed on the shaft D is in gear with a wheel H also loose on the shaft J.
The wheels A and B always turning in the contrary direction the same will be the
case with the wheels E, F, and therefore with the wheels H and G. The truncated
disengaging gear slides in a groove fixed to the shaft J, and causes it to participato
in its movement; the pulley Y will then turn to the right or to the left according as
the disengaging gear itself will be on one side or the other.
Although I have shown the means to obtain with my "baromotor" all the move-
ments of which one may need in mechanics, they can thus be applied to any machine
according to its wants. This system being able to be utilized every where where
muscular force or power is employed, it is impossible to enumerate all its appli-
cations. In effect one can either have one "baromotor" isolated like those herein-
before described, and transmit power by means of a strap or band, or use the organs
or parts described and apply them direct to the machine to be set in motion.
From experience had in application of this system to different machines, it results
that for equal labour one man working a pump with this apparatus like the one
represented in Figures 1 and 2 does as much work as three men working with
their arms, and that one man working with this apparatus and converting the
movement of the treadles into continuous circular or reciprocating movement does
more work than 2 men working with their arms.
Having now described the nature of the said Invention, and in what manner the
same may be performed, I declare that I claim, the general arrangement and com-
bination of parts constituting the new or improved apparatus called "baromotor"
for obtaining and applying motive power, such power being obtained by utilizing

page_text: the displacement of the weight of the human body acting on treadles, as herein-
before described.
In witness whereof, I, the said Ernest de Pass, have hereunto set my hand
and seal, this Fifth day of April, in the year One thousand eight hundred
and seventy-seven.
Witness,
H. MAUTHÉ,
Patent Office,
68, Fleet Street,
London.
ERNEST DE PASS. (L.S.)