US643090A - Acetylene-gas generator. - Google Patents

Description

No. 643,090. Patented Feb. 6, mo. H. HAWKINS.

ACETYLENE GAS GENERATOR.

(Applicationfiled Sept. 12, 1899.

(No Model.)

O/WAZ INVEN UR.-

W1 NESSES wire STATES PATENT tricnl HENRY HAWKINS, OF LONDON, ENGLAND.

ACETYLENE-GAS GENERATOR.

SPECIFICATION forming part of Letters Patent No. 643,096, dated February 6, 1900.

Application filed september 12, 1899. $erial No. 730,277. (No model.)

To (tZZ whom it may concern:

Be it known that I, HENRY HAwKINs, a subject of the Queen of Great Britain and Ireland, and a resident of 258 Neville road, Forest Gate, London, in the county of Essex, England, have invented certain new and useful Improvements in Acetylene-Gas Generators, of which the following is a specification.

My invention is designed to provide an acetylene-gas generator possessing novel features by which gas from water and calcium carbid is produced in proportion to the consumption.

Referring to the drawings, which form part of this specification, Figure 1 is a vertical sectional view of an acetylene-gas generator made in accordance with my invention, and Fig. 2 is a front elevation of same on line 0000 of Fig. 1.

I employ two or more generating-chambers, such as J and J, to each of which the watersupply pipe B is connected by means of the cross-pipe K. Cocks K and K on said crosspipe are used to shut off the water-supply from either of the generators not required to be worked. Water for supplying chamber A is taken from an auxiliary tank L, which communicates therewith by the pipe L. l/Vhile being filled, the air in said chamber is allowed to escape through the pipe L to tank L. The auxiliary tank L extends around the upper edge of the compartment R, from one end of the water-chamber A to the other.

M is a gage-glass for ascertaining the height of the water in the tank.

N is a cross-pipe on the end of the watersupply pipe B in each generating-chamber. From this pipe are depended a suitable number of needle-tubes E. The water drips from these needle-tubes ontoa revolving cartridge, which consists of a centrally-pivoted drum 0 and a tubular perforated case 0, between which is alayer about 2. 5 centimeters in thickness of calcium carbid. The water dripping onto one side of the cartridge and saturating the carbid causes the same, through the extra weight of water, to slowly revolve. As the carbid becomes partially spent the outside portion squeezes through the perforated case 0 and falls onto the perforated plate 0 Thus a fresh surface of carbid is in due course presented to the water. After two complete revolutions the cartridge is considered spent and should be recharged, For this purpose it is necessary to shut off the now spent generator by closing the water-tap K and gas-outlet tap P on the pipes communicating therewith. Then remove the spent cartridge and after clearing out the residue recharge with calcium carbid and replace in position. In the meantime to avoid any stoppage in the production of gas the other generator should be started working by opening the water and gas taps in connection therewith.

As the gas is generated it passes through the pipes P into the receiver Q. This receiver at starting is filled with water, which as the pressure of gas increases is forced through the pipe Q into the compartment R above the receiver, so that a constant head of pressure is obtained. The pressure'in the compartment R corresponds with the pressure of the head of water in the pipe 13. Thus the level of water in the compartment and pipe are equal.

When the pressure of gas is excessive, the level of Water is above the hole D, and therefore no air can enter the chamber. Consequently no water can enter into the pipe through the hole. As soon, however, as the pressure becomes normal the level of water falls below the hole D in the pipe B and al lows air to enter through sameinto the cham her, the result being that a proportionate quantity of water enters the pipe and passes to the generating-chamber.

The height of water in the compartmentR is ascertained by means of the gage-glass R.

The gas-outlet pipe S preferably connects with the dome S, formed in the receiver Q.

For each generating-chamberl use a safetypipe, so that should a generator be started and the cock on the gas-outlet pipe be acci dentally closed the gas will escape through said safety-pipe. This consists of a pipe T, which leads from the generating-chamber to a suitable height above the top of the apparatus,where it dips into an outer tube T through a box T situated at the upper end thereof. The tube and also the portion of the pipe T dipping therein are filled with water up to the level of the said box T The gas under pressure when it has no other outlet forces the water out of the pipe into the tube and then forces the water out of the tube into the Having now described my invention, What I claim as new, and desire to 'secu re by Letters Patent, is-

1. In a device of the character described, a closed Water-chamber, a feed-pipe passing therethrough with an opening forming an outlet for the water-chamber, said feed-pipe being open to the atmosphere at its upper end and having a gooseneck formed at its lower end, a generator into which the feedpipe discharges, a receiver connected with the generator, a compartment above the receiver and connected therewith, awater-sealed safety-pipe leading from the generator to the compartment and a ven t-pipe to the compartment, substantially as described.

2. In a device of the character described, a

Water-chamber, an auxiliary water-tank coinmunicating therewith, a feed-pipe passing through the water-chamber and provided with an opening forming an outlet for said Waterchamber, said feed-pipe being open to the at-' mosphere at its upper end and having a gooseneck formed at its lower end, a generator into which the feed-pipe discharges, a receiver communicating with the generator, a coinpartmentlocated above the receiver and communicatin g therewith, said receiver and compartment containing water, a dome formed in the upper part of the receiver, a servicepipe leading from the dome, a safety-pipe connected to the generator at one end, a vertical tube containing water in which the other end of the safety-pipe is submerged, a box formed at the upper end of the tube, a pipe connecting the box with the compartment, a valved pipe connecting the safety-pipe with the compartment, and a suitable vent to the compartment, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

HENRY HAWKINS.

Witnesses:

SAMUEL HENRY HAWKINS, JAMES WYETH.

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