I find it fascinating how existing vehicles were converted to engine power once motorized conveyances caught on, and the following article explains the process of conversion very simply and adequately.

H. K. Clever of Omaha, Neb., has invented a gasoline motor which he claims will create a sensation in the wheeling world.  The design is a gasoline motor attachable to either bicycles or carriages, but perfected only as to the former.  Mr. Clever has been working upon his plans for the past seven years and now feels that his efforts have met with success.  As attached to a bicycle the motor consists of two cylinders fastened to the rear semi diamond by means of clips, the whole weighing fifteen pounds, or seven and one-half pounds on each side, making an even balance.  Each cylinder is two inches in width by nine in length and two in depth housed in forged steel of one-sixty-fourth of an inch in thickness, it being thin in order to afford a cooling surface greater than the heating surface.  The cylinders are fed by gasoline, for which the tubing of the bicycle is the reservoir.  The tubing of an ordinary wheel holds three and one-half pounds of gasoline, sufficient to last sixteen hours.  This, with the cylinders added to the weight of an ordinary road wheel would make the total weight about forty-two pounds.  The cylinders are connected with the rear wheel by means of a cut raw hide gear, the engine running three to one at the rear wheel.  The speed of the engine is 950 revolutions a minute, with a two by two stroke and will furnish about one and one-sixteenth horse power.  Running at the full speed of 950 revolutions per minute at a ratio of three to one of the rear wheel, that would mean about 320 revolutions of the bicycle wheels or a lineal distance of about 800 yards with twenty-eight inch wheels.  The fluid supplied through the tubing of the frame is drawn into a vaporizer by the suction of the piston through a small tube passing into the vaporizer, the latter being supplied with a needle valve to regulate the flow of the fluid, that being set before starting out so that the proper amount of gasoline and air is drawn in.  The pistol travels up and causes a vacuum in the crank by using, which draws the air and gasoline in; the housing and in the process mixes the air and gasoline sufficiently to develop the combination into gas.  When the piston starts down it compresses the gas slightly, until it passes into the corrugations below the cylinder and being released it rushes into the top of the cylinder and the piston rod starts its upward stroke, closing the corrugations.  The gas is compressed in the top of the cylinder, where it is exploded by an electric spark and the piston is driven downward until the exhaust valve opens and the burned mixture and dead gasoline are allowed to escape.  The corrugations again spark, or rather the current developer is fastened to the cross piece in the rear truss of the diamond just over the wheel, and is revolved by the revolving of the rear wheel.  One revolution of the wheel gives speed enough to produce three sparks upon contact with a mercury pan in the cylinder.  The double motor is operated and the speed is regulated by a throttle on the handle bar.  It is so arranged that when pressure is released on the throttle the machine stops.  When at full speed the revolutions of the crank shaft to the driving wheel of the bicycle is three to one, but it may be regulated to suit the rider.  While the plan provides for two engines, one on either side, sufficient power may be developed by one to run the wheel.  Source:  Brooklyn Eagle.  April 3, 1896    © Material from this website is the property of the author, and may not be reproduced without the consent of the author.  Thank you.