US637546A - Acetylene-gas generator. - Google Patents

Description

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ACETYLENE GAS' GENERTUR.

(Application led Jan. 1, 1899.)

2 Sheets-Sheet Udo4 Model.)

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ACETYLENE GAS GENERATUR.

(Application Bled Jan. 7, 1899.)

(No Model.) 2 Sheets-Sheet 2,

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GEORGE S. BENNETT, OF PORTLAND, OREGON.

ACETYLENE-'GAS GENERATOR.

SPECIFICATION forming part of Letters Patent No. 637,546, dated November 21, Application filed January 7,1899. Serial No. 701,474. (No model.) I

T0 @ZZ whom, t may Concern.-

Beit known that I, GEORGE S. BENNETT, residing atPortland, in the county of Multnomah and State of Oregon, have invented a new and Improved Acetylene-Gas-Generatin g Apparatus, of which the following is a specication.

This invention comprehends generally certain improvements in acetylene-gas-generating means whereby to provide a compact, stable, and easilymanipulated apparatus which is positively automatic in its action and which will eliiectivelyserve for its intended purposes.

One of the essential features of this invention lies in the peculiar construction of the combined gas settling, cooling, and storing tank, an eXteriorly-held generator, and awater-feed governed by Ithe consumption and the varying pressure of gas within the tank and without the use of valves or adjustable cut-offs. 4

This invention also comprehends a simple and novel construction of generator adapted to be held exteriorly of the main tank and including a carbid-holder detachably held within the generating-body by simple clamp devices readily manipulated, which will also serve to disconnect the generator from the main tank and water-feed and admit of the carbid-holder being removed from the generator-body proper.

In its subordinate features this invention embodies certain. combinations and novel fea-v tures of construction, which will be first described in detail and then specifically pointed out in the appended claims, reference being had to the accompanying drawings,in which- Figure l is aside elevation of myimproved gas-generating apparatus. Fig. 2 is an end elevation yof the same. Fig. 3 is a vertical longitudinal section thereof, taken practically on the line 3 3 of Fig. 4. Fig. lis a horizontal section taken substantially on the line 4 4 of Fig. 3. Fig. 5 is a detail view of the cappiece for the generator, and Fig. 6 is a detail view of the water-feed pipe and the generatorsupply.

My improved gas generating apparatus comprises a single tank of suitable proportons,which is provided at the upper end with a su pplem ent-al chamber which acts as a cushion or balancing chamber to receive the Water as it is forced up from the purifying-compartment by the pressure of gas collecting therein, said cushion-chamber serving, as it were, the function of the ordinary rising-and-falling section of the ordinary gasometer. The said tank is also provided with a duplex Water-holding compartment, with whichat a point below and above the main or normal Water-line connects a feed-pipe whichhpas a series of escape-orifices arranged in different horizontal planes and above'the -lowermost feed-lateral which connects with the main tank or holder, and which openings are adaptedto be brought in line with the varying Water-level Within the said main tank, stepby step in accordance with the varying pressure of gas upon the Water Within the tank and produced by the consumption thereof, whereby to create an automatically-regulated Water-supply for the generator.

In my construction of acetylene-gas-generating apparatus the generator is in the nature of a holder suitably supported exteriorly of the main tank and provided with a detachable cap adapted to be held gas-tight on the generating-body proper by suitable clamping mechanism, said generator also including a carbid-holder in the nature of a screen-pocket removably held within the generator-body, its upper end being open and adapted Vto be held in line with the spray of the feed-pipe which passes through the cap. The generatorcap is also provided with a gas-outlet, with which connects an otake-pipe having a suitable drip portion at the lower end for the collectiou of solids and adapted to communicate and discharge into a gas-settling chamber formed in the upper end of the main tank, from which chamber the gas is permitted to escape through a cooling-coil into the waterspace of the main tank and through whichfit percolates and collects in the collecting-chamber above it and from whence, after being purified, it passes back to the settling-chamber, from whence it is allowed to escape through a house-supply pipe, which connects with the upper end of said settling-chamber.

Having thus generally outlined the construction of my improved apparatus, I shall now describe the same in detail, referring to ,the accompanying drawings by letters and IOO numerals, in which like numerals and letters designate like parts in all of the figures of the drawings.

A designates the tank or cylinder, which is formed of suitable metal and of any desired size, it having a top or dome portion b and a bottom c, which are hermetically sealed or closed, with the exception that the top has a feed-opening 2, which receives a screw-cap 24, said opening being for the pouring of water into the tank. The upper portion of the tank terminates in an air-chamber 7c, the base of which is made conical, as at c, and terminates with a central downwardly-extending tube or cylinder d, the lower end of which is open, as at P, and ends near the bottom c, said cylinder being braced at the upper end by a conical diaphragm f, which has its inclination reversely to the base c of the chamber 7a, the said portions e and fserving to form an annular gas-settling chamber L, surrounding the pendent cylinder, the purpose of which will presently appear. The parts f, d, and c form the gas-circulating chamber o o, which communicates with the interior ofthe cylinder d through the opening P at the bottom.

In operation water is iilled into the tank A through the opening 2 at the top to the normal water-line, (indicated by on im) and the space within the cylinder d between the top of the water and the top of the tank A forms the air-chamber 7c, which chamber has a vent 1, which is always open.

4 indicates a horizontally-disposed pipe-l coil located near the lower end of the tank A and mounted in suitable brackets q. This coil is perforated and communicates, through the medium of the pipe 16, with the upper end of the gas collecting and settling chambel' IA. I

g indicates the generator or carbid-holder receptacle, which is provided with a top 7L, through which the pipe 12, hereinafter referred to, passes, and said top h is held airtight on the top of the holder g by a gasketjoint and yoke-clamp i', having claws to engage with an annular rim fr, forming a part of the holder g, and the clamping-screw j, that engages a threaded openingin the yoke and bears upon the cap 7L, as clearly shown in Fig. 3. This receptacle r/ contains a wire basket or cylinder open at the top and extending substantially froln the top to the bottom of the receptacle g, it being of such diameter as to be readily removable from the said receptacle. The object in making the carbid-holder of open wirework is to permit the ash as it accumulates falling from the holder, and thereby always presenting freshor unslaked carbid surfaces to the water-spray, it being obvious that by using this form of carbid-holder when the same is removed to be refilled should any unslaked carbid remain within the holder by gently tapping the sides of the said holder the remaining ash will discharge therefrom and the unslaked carbid remain.

The top or cap h of the generator has an offtake or discharge opening h', with which connects a gas-offtake pipe 9, and an opening h2, through which passes the feed-pipe 12, the lower end of which has aspray 12, adapted to discharge into the carbid basket or holder The gas-offtake pipe f) enters the highest point of the gas-settling chamber in the tank, as indicated at 18 in the drawings, and said pipe 9 extends below its point of connection with the generator-cap member 71, as indicated at 9, said portion forming a drip or collecting well, and is provided with an escape-valve 9", as clearly indicated in Fig. 1.

10 indicates a stand-pipe which enters the gas-purifying chamber o at two points, one, as indicated at 13, below the normal waterline m and the other, as indicated at 14, near the upper end of said chamber. The lower end of the stand-pipe is closed and has projected into 'it a vertical extension 12b of the water-feed pipe 12, which extends laterally and passes through the generator-cap h and terminates in a spray-nozzle, as before stated. The extension 12b of the pipe has a series of water-inlets 12c arranged one above the other, the purpose of which will presently appear.

S indicates a pipe located exteriorly of the tank A, the upper end of which passes at 5 into the upper chamber k, while the lower end enters the gas-purifying chamber 0 o at 8 at a point below the coil 42 7 indicates a pipe which enters the lowest point of the gas-settling chamber L, extends toward the exterior of the tank 0, and terminates atthe drip-cock 17, the purpose of said pipe being to lead off the collections within the settling-chamber L, which will readily, by reason of the iiaring chamber j', flow toward the mouth of the pipe 7.

6 indicates an olftake-pipe which enters the gaspurifying chamber o 0 at the highest point, and 11 indicates a clean-out which enters the gas-chamber o o at its lower end.

2G and 21 indicate stop-cocks by means of which the flow of gas and the waterfeed can be stopped and the communication between the tank A and the carbid-receptacle cut off at will.

The operation of my improved apparatus is best explained as follows: Assuming the water in both the chamber o and the cylinder CZ n to be at the normal water-line m m and the carbid placed within the holder g and properly sealed, the stop-cocks 26 and 21 are then opened, which allows the water in the pipe 10 to enter all the perforations in pipe 12 and pass down into the carbid-receptacle and, contacting with thecarbid therein, generates the gas within the holder g, which passes out through the pipe 9 into the gaschamber L, where it has an opportunity for settling, and from whence it passes from the IOO pipe 16 into the cooling-coil 4f, which is provided with suitable perforations, through which the gas passes into the chamber 0 o, through which it rises and collects in the upper part of the chambero ol and passes outinto the offtake 6, from which it can be drawn at will. By arranging the parts as described it will be readily seen that the gas-pressure which accumulates within the chamber 0 above the water will serve to force the water down in such chamber and correspondingly upward within the chamber n, such operation serving practically the same function of the vertically-movable member of the ordinary gasometer. As the Water recedes within the space o o by the gas-pressure its level will fall in the plane with the upper end of the pipe l2, and as the gas-pressure increases within the said chamber o o the water-level will fall step by step below the several inlets to the pipe 12, the reverse taking place as the pressure of the gas reduces, thereby gradually and intermittently cutting oftthe supply to the generator proportionate t0 the varying pressure of gas within the tank produced by the consumption of the gas taken therefrom, it being obvious that as soon as the water within the tank A recedes below the lowermost feed-lateral of the pipe 10 water-supply to the generator will cease, it being also understood that as the water within the chamber 0 recedes it correspondingly rises within the chamber fn k. Thus should the pressure of gas become sufficient to force the water within the chamber o o down below the end of pipe 8 the said pipe would then be freed of water and the gas allowed to pass out into the same until it was'closed again by the rising of the water within the chamber o o, said pipe 8 acting, as it were, as a blow-oft or safetyvalve, as the gas within the chamber o o, as soon as the lower end of the pipe 8 is opened, will pass out through the said pipe into the chamber lo at the top and out into atmosphere through the vent l until the pressure on the water is sufficiently reduced to bring its lever again to the point on the lower end of pipe 8.

By constructing the several parts in the manner shown and described the generation of gas can be effected automatically without the use of a shut-off cock to regulate the same. Furthermore,`it will be readily seen that supposing the water to be about in line with the lower feed-lateral of the pipe 10 the slight variation of gas-pressure within the chamber o o will permit the water to rise or fall and cut in 0r out the feed-orifices of the section 12a, one at a time, thereby positively regulating the lioW of the water to the carbid-holder proportionate to the pressure of gas contained within the tank A.

3 indicates a discharge for drawing 0E the water from the chamber o when necessary.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

l. An acetylellegas-generating apparatusV of the character described; comprising a tank having means for filling through the top, and an overflow-outlet in the said top, said tank having a central upvif'ardly-extending section closed at the top from the water-holding space of the tank, its lower end being open and communicating with the aforesaid water-space; a generator and feed-water supply therefor connected with the tank-water space, governed in its supply by the varying water-level in the tank; a gas collecting space within the said tank; a feed-pipe from the generator discharging into the said gascollecting space, and a feed-pipe from the said gas-collecting space projected and discharging into the waterspace-of the tank, all being arranged substantially as shown and described.

2. In an acetylene-gas-generating apparatus as described; the combination with the generator mechanism; said mechanism including a water-feed communicating with the main-tank water-chamber, governed by the rise and fall of the water-level therein; of a tank havinga chamber o o, serving as a water-holder and gascollecting space, said chamber having an oiftake-pipe 6, the upper end of said tank having an air-chamber terminating in a pendent cylindrical portion communicating with the chamber o o, said air-space having an open vent; and the blowott pipe connecting the air-chamber at the top with the compartment o o, substantially as shown and for the purposes described.

3. The combination in an apparatus of the character described; with the gas-generating means, the Water-supply of which connects with the main tank and is governed bythe rise and fall of water therein; of a main tank having a settling-chamber, a feed-pipe opening therein and communicating with the gascollecting space of the generator, said tank having an outer compartment o o; an inner compartment n, said compartment n, terminating in an air-space having an open vent and communicating with the compartment 0 o, and a pipe connection joining the settlingchamber of the tank with the water-space of the compartment 0, all being arranged substantially as shown and for the purposes described.r

4. In an acetylene-gas-generating apparatus of the character described; the combination with the tank having an air-space at the top provided with an open vent, and terminating in a central pendent cylinder opening at the bottom into the tank; an annular settling-'chamber near the upper end of the tank; said tank having an annular space o o, forming-a water-holder and a gas-collecting compartment, -the gas-collecting portion of which has an ofttake 6; a cooling or spray pipe located in the Water-compartment of the tank; a pipe connecting the cooling-coil with the settling-chamber of the tank; a generator comprising a carbid-holder; a valved spraypipe discharging onto the carbid held there- IOO ITO

Y anism including the Water-valved spray-pipe l2; the valved offtake-pipe 9, said offtakepipe having avalved drip portion; of a tank A, having an annular compartment o, forminga combined water and gas collecting space, the gas-collecting portion having an oitake G; an annular gas-settling compartment L, disposed over the top of the compartment 0, said compartment communicating with the gas-pipe 9 of the generator; an air-chamber formed in the upper end of the tank having an open vent, and terminating in a cylindrical pendent portion extending to near the bottom of the tank A, and communicating with the compartment o; a cooling-coil 1ocated in the lower end of the compartment o; a pipe connecting said coil with the settlingspace L; a pipe opening at the upper end of the upper space of the tank, its lower end communicating with the tank at a point below the perforated cooling-coil; a drip-pipe 7, connected with the lowermost portion of the settling-space, and a clean-out ll, all being arranged substantially' as shown and dei scribed.

GEORGE S. BENNETT.

Witnesses:

A. T. LEWIS, A. R. DEAPER.

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