Improvements in or relating to Explosion Motors.
Year: 1898

page_text: Date of Application, 8th Dec., 1898-Accepted, 11th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in or relating to Explosion Motors.
I, PHILIPPE PICHARD, of 80, Rue Parmentier, St. Etienne, in the Republie
of France, 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 or relating to explosion motors with
the object of simplifying their construction and mounting and also for facilitating
their starting. These improvements consist in dispensing with the connecting
bolts of the cylinder cover and also those connecting the frame or carriage with
the cylinder; in the arrangement of the valves in a casing allowing of easy
access to them which casing carries the inlet pipe which can be adjusted in any
direction and finally in mechanism allowing the outlet valve to be kept open
when desired at the starting moment.
In the annexed drawing: Fig. 1 is a vertical section of a motor provided with
the above improvements. Fig. 2 is an enlarged view of the device for opening
the outlet valve.
The carriage of the motor consists of two supports a a' connected by bolts this
carriage which supports the cylinder is provided with an internal circular Hange b
engaging into a groove of the cylinder and by which the latter is supported.
Near the other extremity of the cylinder is an annular recess d in its interior and
also notches e of any convenient number arranged round the inner circumference
of the cylinder so that they lead from the cylinder end to the recess d. This
arrangement allows the mounting of the piece 9 and the introduction of its
projections f f (the number and arrangement of which are equal and correspond
to the notches e) in the recess d. The piece 9 carries at its centre a projection /
screw threaded at its upper extremity and housed in a central bore of the cylinder
cover i. The pressure of the screw j presses the circumference of the cover i
firmly on to the cylinder. In order that at the moment of starting the motor
by the hand or feet (the latter in the case of motor cycles) compression of the
burnt air does not take place, there is arranged at the upper extremity of the
rod k which raises the outlet valve a piece m provided at its lower part with a
helicoidal border, corresponding to that of the piece n on which it rests and
which is provided with fixed arm o and by means of which it can be turned.
By this means and by any arrangement for preventing the rod k from
turning on its axis and the lever or handle o being turned in the proper direction
the piece m can be raised and also the rod k and valve l. It is evident that the
valve will not be able to return to its seat until the lever o is returned to its
normal position and also that at this time the compression of the burnt air
will not be possible in the cylinder.
To facilitate the inspection of the valves the seat p and the valve 9 of the
air introduction are arranged opposite the valve and in order that it may be
possible to give the inlet pipe r any desired direction, the same is not made in
one with the valve seat or valve q, but is arranged so as to turn concentrically on

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the piece by means of its widened annular part s, the interior of the piece
is in communication with the interior of the parts of the pipe by means of
holes t provided in its periphery. A screw cap u provided on the top of the
piece fixes the piper in the desired. position. The valve box instead of
being fixed to the cylinder as shown can be equally well fixed to the cover i of
the cylinder.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed I declare that what
I claim is
1. An improved hydro carbon or explosion motor in which the connection of
the cylinder with the carriage or framing is effected by means of a flange b of
the one engaging into a suitable groove of the other the attachment of the
cylinder head being effected by means of the pressure of a single screw or the
like substantially as described and illustrated.
2. The arrangement of an admission valve in the interior of a piece forming
the valve seat and pierced with suitable holes said piece being enclosed in the
annular housings of the admission pipe which can be turned therewith and
secured in the desired position by a screw cap substantially as illustrated and
described.
3. The device for temporarily maintaining the outlet valve open consisting of
two sleeves with helicoidal surfaces in contact with one another the one being
fixed on the valve rod, the other provided with a lever arm, by means of which
the one sleeve can be turned round in such a manner as to raise the other
together with the valve rod and the valve.
4. An improved explosion motor as herein described and claimed and illustrated
in the annexed drawing.
HERBERT HADDAN & Co..
Agents to Applicant, 18, Buckingham Street, Strand, W.C.