Greene Ketchum & Company Stock Certificate (New York Smokeless Furnace)

Description

Greene Ketchum & Company Stock Certificate
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Greene Ketchum & Company was incorporated in New York  and was involved with Sullivan Smokeless Furnace equipment.
A 1910 edition of
Practical Engineering
described the Sullivan Smokeless Furnace equipment as follows:
This equipment does not change the old furnace construction and can be installed in a few hours at a reasonable cost and without serious loss of time or interference with other furnaces. It is designed to furnish a maximum amount of heat with which to generate steam by the use of bituminous coal as fuel, but with the entire absence of smoke or soot.
It consists of a specially built bridge wall or baffle plate, a steam retort buried in the front wall directly over the fire door arches, and an automatic time regulator to control the steam. The bridge wall is supplied with a transverse air passage, which is carried back and forth across the furnace several times to heat the air thoroughly and then terminates in a series of outlet ports just over the top of the fire bed. This supplies the furnace with sufficient oxygen at an extremely high temperature which mixes with the distilled gases from the fire to provide complete combustion.
The natural vacuum on the fire which varics with the amount of air required, serves to pull the air through the air ducts and regulates the supply needed.
The air supply coming through the bridge wall cooperates with and balances the variable supply coming through the grate bars, and provides a perfect combustion at the proper places, directly over the grate bars.
The steam retort is especially designed for this purpose and is made of a composition which has great fire-resisting properties. It supplies the fire with dry steam, but only for a few seconds while stoking, when a temporary excess of hydrocarbons is thrown off, to hold them down and prevent their escape, so that the heated oxygen supplied through the bridge wall or baffle plate can control them.
Only a narrow face, 13% in., of the retort is exposed to the fire, and even this is not flush with the fire bricks, so that the heat has no effect upon it. The steam outlet ports in the retort will therefore not become obstructed by the heat and prevent the discharge of the steam, and the retort is so designed and set that the steam will not come into contact with the bricks and cause them to disintegrate, but will empty out through the 1-16-in. ports evenly over the fire bed.
Entering into the center of the retort is a 0.5-in. pipe brought down from the dome or dry pipe which is provided with a valve operated by the automatic time regulator. When the regulator is suitably mount, ed the dry steam valve will automatically be turned on full as soon as the door is opened to feed the furnace.
At this temperature the steam would not separate into oxygen and hydrogen except that it comes into contact with the heated coal and the gases from the coal. In these gases is an excess of carbon and both the oxygen and hydrogen have greater affinity for the carbon than for each other, so that the recombination is made and the water gas is formed. These gases are in condition, then, to burn readily on coming in contact with the heated air, which is supplied through -passages surrounding the steam dissociators.
Thorough mixture of air and gases is secured by the checker work above the bridge wall. It will be seen that the jets from the dissociator are pointed downward in such a way that the steam issuing from these will pass through the products of combustion from the fire, while the air currents which enter around the dissociators, not being directed in this manner, will spread all through the firebox and thus mingle with the products of combustion and with the water gas formed from the steam. Proof of the effectiveness of the device is the complete satisfaction with it expressed by users as to reducing smoke and increasing efficiency.
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