US941393A - Carbureter. - Google Patents

Description

A. H. WARMSLEY.

GARBURET ER. APPLICATION FILED JULY 5, 1907. 941,393.

3 SHEET8-SHEBT 1.

Patented N0v.30,1909.

Witnesses a ANDREW. a. unnumca. PHOYO LITNGGRAPNEKS. wAsumamN. u. c.

A. H. W'ARMSLEY, GARBURETER.

APPLICATION FILED JULY 5. 1907.

Patentd Nov. 30, 1909.

3 SHEETS-SHEET 2.

' [fiflizior Witnesses j v y 7' ANDREW. a. GRAHAM co.v momunmsmmans. WA HJ ALFRED .HARRIS WARMSLEY, OF ILFORD, ENGLAND.

CARBURETER.

Specification of Letters Patent.

Patented Nov. 30, 1909.

Application filed July 5, 1907. Serial No. 382,383.

To all whom it may concern:

Be it known that I, ALFRED HARRIS VVAR'MsLEY, a subject of the King of Great Britain and Ireland, residing at Ilford, in the county of Essex, England, whose postoffice address is Avondale, Ilford Lane, Ilford, in the county of Essex, England,have invented certain new and useful Improvements in Carbureters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to apparatus for the production of combustible gas, for illuminating and heating purposes, from petrol or other spirit or oil, and has for its object to provide improved apparatus whereby gas is produced or generated more economically and efliciently than has been done with apparatus heretofore employed, the apparatus according to this invention being at the same time of simple construction and safer and more reliable in action.

Further features of the invention will appear from the following description with reference to the accompanying drawings of which,

Figure l is an elevation of the improved apparatus according to my invention. Fig. 2 is a plan View of Fig. 1. Fig. 3 is an elevation, partly in section and on an enlarged scale, of the carbureter according to my invention also showing on an enlarged scale the float valve. Fig. 4 is a side or end view of'Fig. 3 looking in the direction of the arrow. Fig. 5, Sheet 1, is a detail view further illustrating the safety valve and the method of operating same. Fig. 6 is a detail View of the vertical air pipes in the carbureter and the sleeve-valve in the main air pipe as hereinafter described. Fig. 7 illustrates a dry-gasometer as hereinafter described.

a box or chamber 3 (hereinafter called the drying box) on top of the blower casing. In the interior of the drying box 3 there is provided a diagonally arranged partition 4 of perforated zinc, wire gauze or other suitable material having sloping shelves 5 of similar material adapted to hold the necessary quantity of chlorid of calcium or other suitable material for ab: sorbing moisture from the air; the partition 4 and shelves 5 are preferably inclosed or supported by a rectangular frame-work 6, shown in dotted lines Fig. 1, so that the shelves or pockets containing the chlorid of calcium or absorbent material may be readily removed from the drying box. Opening into the top of the drying box 3 is a short pipe 7 whose upper end forms a valve seat on which the disk valve 8 is adapted to take its seat. Instead of a flat disk Valve any other suitably shaped valve might be employed, the valve seat being modified accordingly.

8 is a rod adjustably mounted in a guide in the projection 9 on top of the valve 8 the said rod 8 being for the purpose of adjusting the balance of the valve 8, which valve 8 may be called a balanced suctionvalve as hereinafter more fully explained. The valve 8 is, in the example shown, attached to the end of a lever 9 mounted on a pivot or spindle 10 in the outer end of an arm or bracket 11 (which may be forked at its end) projecting from the short pipe 7. The valve 8 is adapted to be automatically moved on to its seat as the gasometer bell 12 rises, the said valve being moved onto its seat as the bell approaches, or when it reaches, its uppermost working position, and to be held on its seat by the suction in the pipe 7 caused by the action of the blower 1, the valve 8 being thus held on its seat until the gasometer bell 12 falls to a predetermined position, or to its lowermost working position. The rod 8 is adjusted so that the valve is normally held in its raised position by gravity and without the use of any retaining catch, and so that it can be very easily depressed. The valve is moved downward for a short distance by the action of the movable part of the gas holder, and is then drawn onto its seat and is held there by the suction of the blower which causes the pressure of the atmosphere to be greater upon the upper side of the valve than on its under side. The valve and its seat are formed of solid material, and the employment of a liquid seal is not necessary. This valve is quick and sensitive in action, and as the bell has only to initiate its movements toward and away from its seat, very little force is required, and the movement of the bell is not checked and the pressure of its contents is not varied as would be the case if the bell had to exert considerable force on the valve to move it or to disengage it from some supporting catch. For the purpose of moving or initiating the movement of the valve 8 on to and off its seat the end of the lever 9 is in position to be engaged alternately by the stops or projections respectively 13 and lt on a rod 15 secured to the gasometer bell 12; the stop 13 is preferably made adjustable on the rod 15.

16 is a short rod or pin supported in the outer ends of the stops 13 and 14, the end of the lever 9 being between the rods 15 and 16.

17 is the pipe connecting the blower 1 with the carbureter 18 and through which aid is forced into the carbureter by the action of theblower; this pipe 17 extends or is connected to a pipe 17 extending horizontally across the interior of the carbureter, at about the middle thereof, and may project slightly outside the carbureter as shown at 19 Fig. 1.

20 are branch pipes which as shown extend vertically downward from the pipe 17 so that the lower ends of these branch pipes dip to the desired extent into the petrol in the well 21 of the carbureter. In that portion of the main air pipe, 17 within the carbureter 18 there is provided a rotary tubular or sleeve-valve whose outer end at 19 is suitably closed and has attached to it an arm or suitable operating connection 22 whose free end engages in the slotted end 23 of a rod 24; suitably attached to the gasomcter bell 12.

25 is a drain-cock preferably in the bottom of the petrol well 21.

26 is the float valve device, which is of the known or any suitable construction, through which the petrol from the reservoir or supply tank 27 is admitted to the petrol well 21 of the carbureter, 28 being the pipe through which the petrol flows from the float valve chamber 26 into the well 21.

29 is another pipe connecting the carbureter chamber with the upper side of the valve float so as to insure the proper working of the valve. Heretofore in float valves of the kind in question the upper side of the float in the valve chamber has been open to the atmosphere through a suitable aperture so as to prevent any cushion of air above the float stopping or retarding the proper working of the valve, but such an arrangement is unsuitable to a mixture producing plant in which air is forced into a carbureter which is in communication with the petrol in the float valve device as the air forced into the carbureter would blow some of the petrol out through the said opening to the atmosphere; I have therefore provided the pipe 29 (in lieu of the aforesaid opening to the atmosphere) connecting the upper end of the float valve chamber and consequently the upper side of the float with the carbureter chamber thus obviating any blowing of petrol out of the float valve chamber to the atmosphere.

In Fig. 3, which shows details of this float valve device, 30 indicates the float and 31 the usual needle valve controlling the inlet of petrol from the tank 27 through the pipe 32, Figs. 1 and 3, to the float chamber.

33 Fig. 3 are pawls or levers pivoted at 34: whose inner ends engage a groove in the collar 35 secured to the upper end of the inlet valve 31 the outer ends of the levers 33 being suitably weighted so that when the float falls, owing to a drop in the level of the petrol in the float chamber, the weighted ends of the levers 33 also fall whereby the needle valve 31 is lifted and admits a further supply of petrol from the tank 27 to the float chamber whereby the float 30 is raised and actuates the levers 33 so as to close the needle valve 31 and so stop the further admission of petrol from pipe 32 to the float chamber.

36, see Figs. 3 and (3, is the rotary tubularor sleeve-valve adapted to work in that portion of the main air supply pipe, 17, within the carburetor 18 the said sleeve-valve 36 having a longitudinal opening or slot 37 extending the full length of the said valve within the carbureter chamber 18 so that when the valve is in position with the slot 37 in line with the upper ends of the pipes 20 in the carbureter air can pass through said slot into the pipes 20 and into the petrol in the well 21, but when the valve 36 is retated (as hereinafter described) so as to move the said slot 37 out of registration with the pipes 20 air is shut off from, the said pipes and consequently from the petrol in the well 21.

38 is the hereinbefore mentioned safety valve in the main gas supply pipe 39 leading off from the gasometer and supplying to the piping and burners of the installation; this safety valve may be an ordinary plug valve and is normally held in the open position by means of a balancing device consisting, in the example shown, of a crossbar 10 pivoted at 41 on a suitable support or standard 42 and to one end of which is attached a suitable weight 4?), the other end of the said crossbar 40 projecting under a rod or extension 44. connected to the valve or valve handle at one end and having attached to its other end a suitable weight 45, the arrangement being such that in the normal working of the apparatus the weighted crossbar 40 holds the valve 38 in the open position. i

46 is a tappet or projection on a rod 47, suitably attached to the gasometer bell 12, adapted to come in contact with the crossbar 40 so as to depress the end thereof and move itaway from the rod 44 should the gasometer bell fall below its lowermostworking position whereupon the weight 45 will drop and thus actuate the safety valve 38 closing it and thus cutting off communication between the supply pipe 39 and the gasometer.

47* is the pipe connecting the carbureter chamber with the gasometer as usual and through whichthe gas or mixture passes from the carbureter to the gasometer bell.

48 is a branch. pipe or by-pass connecting the main air pipe 17 with the pipe 47, 49 being a cock or valve in the pipe 48, so that if desired more or less air may be supplied direct from the main pipe 17 to the mixture or gas in the pipe 47 on its way to the gasometer. The upper portion of the carbureter above the horizontal pipe 17 forms a mixing chamber and for this purpose may be provided with a series of perforated zinc or wire gauze shelves 50 as indicated in Figs. 1 and The partition 90 is provided in front of the open end of the outlet pipe 47*, and this partition extends nearly to the top of the chamber 18, so that a narrow passage 91 is formed at the top of the partition. The air passes upward through the screens, thence through the passage 91, and downward on the other side of the partition to the outlet pipe any other known or suitable arrangement may be provided for the mixing chamber.

It is well known that in a gasometer of the type shown wherein the gasometer bell works in a water seal in the outer or lower portion 12 of the gasometer that as the bell rises out of the water its effective weight increases and consequently the speed at which the bell will rise under a given pressure of gas admitted thereto will diminish as the bell rises which. may result in an unsteadiness of the lights at the burners.

In order to obviate this I may provide a counter-balancing device which in the example shown may consist of a lever or arm 51 pivoted at 52 on a suitable standard or support 53 which might be secured to the outer portion 12 of the gasometer. Connected to the upper end of the lever 51 is a wire, chain or other suitable flexible connection which passes over a pulley 54 at the top of the guide rod 55 of the gasometer bell the said flexible connection being also connected to the top of the gasometer bell 12; a flexible connection 56 which might be a continuation of the above mentioned flexible connection, is also secured to the upper end of the lever 51 and at the lower end of the connection 56 is a suitable weight 57. When the gasometer bell is at its lowermost working position indicated by dotted lines Fig. 1 the lever 51 will be in the position also shown in dotted lines Fig. 1. As the bell rises the weight 57 will move the lever 51 from the dotted position outward and as it moves out-ward owing to the arrangement of the lever and weight the mechanical advantage increases thus giving a gradually increasing pull on the flexible connection to the gasometer in order to counteract the increase in the effective weight of the bell 12 as it rises.

From the main gas supply pipe 39 the usual branch pipe 68 leads ofl for supplying gas to the burner of the hot air engine (not shown) which drives the blower 1 by means of a belt or chain from the driving wheel of the engine working the pulley or gear 69 fixed on the driving shaft of the blower, such arrangements being well known.

70 Fig. 1, is a flexible nozzle of indiarubber or other suitable material inserted in the short pipe 7 the said nozzle 70 being tapering as shown and provided with a comparatively small opening at its inner end. The object of providing this flexible nozzle is that when the valve is raised from its seat so that air may be again admitted to the carbureter as hereinafter described the air will be drawn in through the nozzle 70 and pipe 7 by the blower in a gradually increasing manner. If some such device were not employed, when the valve 8 is raised from its seat the engine and blower would at once attain their maximum working speeds which might cause an unevenness in the gas supply to the burners.

Referring to Fig. 7 which illustrates the hereinbefore mentioned dry gasometer adapted for use in cold climates the gasometer 71 is of known construction the body portion consisting as usual of leather or other suitable flexible material the lower end of which is secured to a cylinder or vessel into which the mixture or gas from the carbureter is admitted in the usual manner 72 being the pipe connecting the carbureter to the gasometer and provided at its upper end with the usual known check valve 7 3, 74 being the main gas pipe leading out of the gasometer and through which gas is supplied to the piping and burners of the systerm.

The working is as follows :-Assuming that the blower 1 is being driven at the required speed for supplying air to the carbureter 18 through the pipe 17 for efliciently producing gas and supplying it to the burners, the air being drawn into the pipe 7 and through the drying box 3, when the quantity and pressure of mixture or gas so produced or generated in the carbureter and supplied to the gasometer raises the gasometer bell 12 to a predetermined height or, as shown, nearly to its uppermost position the adjustable stop 13 comes in contact with the end of the lever 9 raising the long arm of the said lever and when the arm ofthe lever has moved a certain distance the suction at the inlet of the pipe 7, caused by the working of the blower, draws the disk valve 8 rapidly down onto its seat on the top of the pipe 7 thus shutting oi? the admission of further air to the blower and consequently through the pipe 17 and pipes 20 to the petrol in the well 21 of the carburetor, the blower however continuing to be driven by the hot air engine. Now assuming consumption of the mixture to be taking place at the burners of the system the bell 12 will drop more or less rapidly according to the number of burners in use and when the bell has fallen sufliciently for the stop 14 to come in contact with the long arm of the lever 9 the valve 8 will be moved ofi" its seat thus opening pipe 7 and permitting the blower to draw more air in through the pipe 7 and force it through pipe 17 and the pipes 20 into the petrol in the well 21 whereupon generation of the mixture or gas again commences. At the same time or about the same time that the valve 8 is moved on to its seat on pipe 7, so as to shut off the admission of further air as above described, the rotary tubular or sleeve valve 36 has also been actuated so as to move its slot or openings 37 out of registration with the upper ends of the pipes 20 so that this valve 36 closes the inlet openings of the pipes 20 so that the valve 36 also shuts off the admission of air to the petrol in the well 21; this sleeve valve 36 is actuated to shut off the inlet openings of the pipes 20, as the gasometer bell 12 rises, by means of the rod 24: attached to the bell 12 actuating the handle or connection 22 of the valve 36 so as to rotate the valve and thereby move the slot or opening 37 therein out of registration with the upper ends of the pipes 20. As the gasometer bell falls the valve 36 is again rotated so as to bring the slot 37 of the sleeve valve into registration with the upper ends of the pipes 20. The float valve device 26 supplies the oil well 21 with petrol automatically, and in sufficient quantity as it is needed, but it is not necessary that the oil should be maintained at all times at a uniform level in the oil well 21.

In the apparatus as illustrated in the accompanying drawings it will be seen that the balanced suction valve 8 is moved off its seat on pipe 7 when the gasometor bell 12 has moved downward through about one-third of its downward movement, but the bell 12 will continue to move down until the quantity and pressure of the new gas generated or produced by the readmission of air to the carburetor is suflicient to stop the downward movement of the bell 12 and to raise it again, and when the bell has been thus again raised to the predetermined height the valve 8 will be again actuated so as to shut oli the supply of air to the carburetor and so stop the production or generation of gas in the carburetor. By making the stop 13 adjustable on the rod 15 it is obvious that the valve 8 may be actu ated, so as to shut off air from the carburetor, sooner or later in the rise of the bell 12. Further the point in the downward movement of the bell 12 at which the valve 8 is actuated so as to open the air inlet of pipe 7 may obviously be varied if desired.

Further with this invention the same or substantially the same pressure of mixture is produced in the carburetor whether there is only one burner in use or whether a number of burners are in use, but as hereinbefore mentioned the production or generation of gas in the carburetor is not continuous.

\Vith reference to the hereinbefore described safety valve 38 and its purpose and method of operation hereinbefore described, when the said valve has been actuated so as to shut oif communication between the gasometer and the main supply pipe 39 the valve remains so shut off until the parts l0 and 44 are readjusted by hand and set in the position shown in Figs. 1 and 5 which is the normal position when mixture is being supplied from the gasometer through the pipe 39 to the burners of the system.

This adjustment, by hand, is necessary because in order that the valve may be closed suddenly and completely the weight l5 is arranged to carry the rod l-l downward clear of the bar 40, and to hold the valve lever in a vertical position under the pipe 39.

It is obvious that if desired the drying box 3 may be inserted in the main air pipe 17 between the blower and the carburetor, and in this case the short pipe 7, which is the main air intake of the blower, would be direct on the blower, taking the place of the opening 2. I

Further it will be seen that the length of time the valve 8 remains on its seat shutting off air from the blower 1 and consequently from the carburetor, depends upon the distance between the stops or projections 13 and 14 on the rod 15, and it is obvious that the stop ll may also be made adjustable 011 the rod 15. Likewise the time during which the sleeve-valve 36 remains in position shutting ofi the inlet of air to the pipes 20 depends on the length of the slot 23 in rod 24-, which may of course be varied as may be required, or instead of the slot 23 an arrangement similar to the stops 13 and 14 and rod or pin 16 might be substituted for the slot 23 of rod 24.

Instead of the pipe 47 connecting the earburetor with the gasometer being in the position shown, it may of course lead out of the carbureter from any other suitable point.

What I claim as my invention and desire to secure by Letters Patent is 1. The combination, with a gas-holder having a movable portion, a carbureter, and a blower for forcing air through the carbureter into the gas-holder, said blower being provided with an air-inlet having a valveseat; of a pivoted lever provided with a disk-valve for controlling the said air-inlet, means for balancing the said lever and Valve so that the valve is held up by gravity when moved to a prearranged distance from its seat and so that the valve is drawn against the valve-seat by the pressure of the atmosphere when moved to a prearranged extent toward. its seat, and operating devices c011- necting the said lever with the movable portion of the gas-holder so that the movements of the said valve are initiated by the gasholder.

2. The combination, with a gas-holder provided with a slidable portion, of a carbureting chamber connected to the said gas holder, an air-inlet pipe extending longitudinally in the said chamber and provided with a series of branch pipes which depend from it into the fluid in the lower part of the said chamber, a tubular valve mounted in the said inlet pipe and provided with a slot which controls the passage of air through the said branch pipes, and means for operating the said valve from the slidable portion of the said gas holder.

3. In apparatus of the kind set forth the combination of the balanced suction valve for opening and closing the inlet of air to the blower, the rotary valve in the main air pipe for opening and closing the main air supply pipe, and means for operating the said valves by the movements of the gas bell or holder, substantially as described and shown.

In testimony whereof I aifix my signature, in presence of two witnesses.

ALFRED HARRIS WARMSLEY.

\Vitnesses:

J. GRooM, EUSTACE H. BARKER.

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