Improvements in Gas and Petroleum Motors.
Year: 1893

page_text: Date of Application, 11th Jan., 1893—Accepted, 18th Feb., 1893
COMPLETE SPECIFICATION.
Improvements in Gas and Petroleum Motors.
We, LOUIS SABATIER, JOSEPH ROCHE, Engineers, and LOUIS RODIER, Priest,
all of Bagnot on Cèze (Gare), Republic of France, 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 motors actuated by gas, gasolin or
petroleum of horizontal or vertical type and has for its object, first, to prevent
injurious effects which result in economy; and second, to simplify the organs of
distribution, ignition and exhaust of the burnt gases; and third, substituting the
valves and firing slide actuated alternatively, by one disc only rotated intermittently
by a connecting rod.
And in order that my invention may be more fully understood we have caused to
be appended hereunto one sheet of drawings marked with letters of reference indi-
cating like parts in the various figures.
Fig. 1 is a plan partly in section and Fig. 2 a vertical section of our improved
motor.
Figs. 3, 4, 5, and 6 are views of details.
In carrying out our invention the cylinder A, Figs. 1 & 2, is supported horizontally
at its open end by the frame B, B. The piston a imparts motion to the crank
shaft by means of the connecting rod b. This shaft carrys at one end a fly
wheel d and driving pulley p and on the other end a helical wheel C gearing into
another similar wheel C of double diameter. The latter carrys a crank stud
serving to impart motion to the connecting rod 6 which carrys at its middle a pin
mounted in a blocks arranged to slide in the bed D. The latter is carried by the
arm D' forming part of the frame of the motor. The connecting rod b' serves to
impart the movement of the crank pin or a similar movement in a contrary sense to
the crank pin disc m¹ arranged under the influence of a spring which retains it in
contact with the face N. At the time of explosion the spring r is in torsion and
retains the distributor disc in position during two thirds of the forward stroke of the
piston. As soon as the compression decreases to three-five kilogrammes pressure,
compression which is equal to the tension of the spring, the disc resumes its primitive
position.
In the spindle of the disc, Fig. 3, is formed a hole t which receives an iron rod
which serves to regulate the sparks by the aid of a screw h, Fig. 1, which connects
it to the spindle of the distribution disc. A square is formed on the outer end of
the rod T which facilitates the turning and positioning of the same as desired for
the ignition.
The abutment piece V, Figs. 1 & 3, on being rotated determines the breaking of
the current obtained through its contact with the spring e of the insulated terminal 61
placed on the end of the cylinder; after which breaking a spark is thrown which
causes ignition.
The disc m' actuates the distribution, ignition, and governor mechanism. The
latter is composed of a rotary disc M, Fig. 3. The distribution cover n, Figs. 1
& 4, is furnished with four orifices, viz. E for the entrance of the air, F for the gas,
G for the exhaust of the burnt gases, H a hole for lubrication. The entrance for
the gas has at its upper end a valved tap L, Fig. 5, operated by means of the
governor, Fig. 6.
The part, Fig. 4, carrys a pipe abuting against the frame part B which serves
to cut off the air suction. At the orifice & is employed a tube abuting against the
frame part B which serves to cut off the exhaust. The motor is governed by
cutting off the supply of gas. To this end the tap L is furnished with a valve g

page_text: which lets pass only the gas when acted upon by the crank lever 1, the latter is con-
trolled by a cam c rotating with the governor, Fig. 6.
When the speed is very high the balls fly out and cause the boss k carrying the
cam c¹ to ascend in such a manner that the same inisses the lever and permits of
closing the tap, air then only enters the cylinder and the explosion always takes
place after the disc, the speed of which is diminished, causes the descent of the boss
carrying the cam c and the latter opens the gas valve g.
The lubrication of the distribution disc and cylinder is effected by means of drop
counter lubricators.
The ignition is electric and obtained by means of two wires or bichromite and an
induction bobbin or any other similar means in use. The outer end of the cylinder
is formed with a hole which receives a pin q insulated by a block of porcelain p¹
maintained in position by a screw i, joint being made between the pin 9 and the
cylinder by asbestos and the screwed terminal
The pin q carries a spring e on which strikes the abutment V which breaks the.
passage of the current. On breaking, the flash of a spark produces the explosion.
A terminal v is also placed on the cylinder end K.
The cooling of the cylinder is effected by circulation of water which enters at j
and leaves at or by a refrigeratory lining forming part of the cylinder.
The working of the motor is as follows:-
Presuming the disc, Fig. 3, rests on the face, Fig. 4, in such a manner, that the
line R is in K. Supposing the crank has arrived at the dead point,-Figs. 1 & 2,
and turning in the direction of the arrow just advancing from the dead point, the
disc having made a quarter of a revolution in the direction of the arrow and the
line R moved to P, the suction of air and gas, thus the first part of the cycle of
operation has been completed. Second part, on the piston returning the com-
pression is effected from P to Y. Third, after the explosion has taken place the
piston advances and the distribution disc rests in position two-thirds of its forward
course line P in Y enables afterwards, during firing to move in position R in X for
effecting the exhaust of X in R¹. Fourth, the piston returning again expels the
burnt gases and arrived at the dead point the exhaust is finished and the suction
recommenced through R and R¹. Thus is obtained
1) suction of the mixture
2) compression and ignition
3) work
4) exhaust of the burnt gases
=
forward stroke
backward stroke
= forward stroke
= backward stroke:
For petroleum motors a carburator is necessary which may be of any well known.
F. BOSSHARDT & Co.,
4. Corporation Street, Manchester, Agents to Applicants.