US926628A - Means for controlling the feed of oil and steam in the manufacture of gas. - Google Patents

Description

F. H. WAGNER. MEANS FOR CONTROLLING THE FEED OF OIL AND STEAM IN THE MANUFACTURE 01? GAS. APPLICATION FILED DEO.21,1907.

926,628.. Patented June 29, 1909.

3 SHEETS-SHEET l.

Gnu-M I P. H. WAGNER.

MEANS FOR GONTROLLINGTHE FEED OF OIL AND STEAM IN THE MANUFACTURE OF GAS.

APPLICATION FILED DBO.21,1907.

926,628. Patented June 29,1909.

SSHEETS-SHEET 2.

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. F. H. WAGNER. MEANS FOR CONTROLLING THE FEED OFOIL AND STEAM IN THE MANUFACTURE OF GAS.

APPLICATION FILED DEO.21,1907.

Patented June 29, 1909.

a SHEETS-SHEET a UNITED sTAfrss PATENT crimes.

FREDERIGK H. WAGNER, OF BALTIMORE, MA RYTAND, ASSlUNOR TO THOMAS J. HAYWARD, OF BALTIMORE, MARYLAND, TRADING AS liAlilIjlllT, HAYWARD & CO.

-MEANS FOR CONTROLLING THE FEED OF OIL AND STEAM IN 'THE MANUFACTURE OF GAS.

Specification of Letters Patent.

Patented June 29, 1909.

Application ma December 21, 1907. Serial No. 407,566.

. manufacture of gas.

results in a considerable saving in the quan- In the manufacture of water gas the process is' divided into two periods, 1st, the blow,

during which period the tem erature or heat in the carburetor is raise cause a vaporization of the oil and a disintegration of steam, and 2nd, the run during which period the steamand oil are admitted to the carburetor and the generation of gas takes lace. These two periods are alternate at de nite intervals.

The present invention has particular reference to the devices for mechanically feeding the oil.

Heretofore variation in the feeding of steam and oil to the heated carbureter has been effected by hand, and has been largely a matter of guess work or mere judgment on the part of the operator who gradually cuts off the oil and steam supply as the temperature in the carbureter lowers during the run period. The result is a more or less waste of oil and an ununiform product. The desideratum is a mechanical oil-feeding device which at the beginning of the run period will admit or feed oil to the carbureter with'maxinium rapidity, and which, as the temperature in the carburetor gradually lowers during the run, will correspondingly gradually reduce the quantity of oil admitted until the com pletion of the run. In this way only as much oil will be admitted to the carbureter as can be into gas.

In order to economically reduce the quantity of oil that'is being fed but at the same time to supply as much as the temperature and heat conditions in the carburetor will convert, I have provided a device that upon being started will then automatically vary and reduce the quantity of oil from the beginning to the end of the run period, which sufficiently to properly vaporized and converted tity of oil used andin producing a uniform quality of gas.

- \Vith these and other objects in view, the invention is illustrated in the accompanying drawings, in which,

Figure 1, shows a diagrammatic view of a portion of the oil supply system. Fig.- 2, illustrates a side elevation of the cut-off valve and its operating devices. Fig. 3, illustrates on a larger scale a longitudinal section through the oil-feed valve. Fig. 4, shows a plan view of the oil and steam supply pipes; the valves controlling the same and the re ciprocating lever devices for operatin said valves. Fig. 5, shows a detail sectiona view through the needle valve,the section being taken on the line 5 5 of Fig. 3, and Figs. 6 and 7 illustrate a side elevation and plan view respectively of the connection between the rack bar and the rod that connects it with the valve stem.

WVhile the present invention has particular reference to the mechanically operated oilfeed cut-off valve, Iprefer to show the same in connection with a portion of a suitable oilfeed system.

By. reference to Fig 1 of the drawing it will be understood that the oil from asuitable source of supply or storage is forced by a pump, 1, of any suitable construction through a meter, 2, and from the latter to an oil heater, 3, which is interposed between the meter and the cut-off valve mechanism, and the latter is interposed between the oil heater, 3, and the carburetor, 5. The said cut-off valve mechanism is supported by a suitable base, 4; a housing, (3, is mounted on the base, and a valve casing, 7, having a suitable bracket, 8, is supported in a horizontal position on top of the housing. By reference to Fi 3 it will be seen that the casing is provided with an interior valve chamber, 9, into which an oilinlct pipe, 10, enters, and also has a tapered valve-seat, 11, at one. end beyond the inlet ipe. At the other end the casing is provi ed with a stulling box, 12, which may be of any desired or well known construction. A valve, 13, of the needle type having a tapered or conical end, 14, has its large end fitted snugly in the casing so as to move longitudinally therein and the point end, 15', when the valve is in the retracted or wide-open position, has position in or adjacent to the largest part of the tapered valve I nect'ed in any suitable manner to the valve;

the stuffing box maintains a tight joint around the stem. The outer end ofthe valve stem is provided with a circular head, 17, with a'n-annular groove, '18, extending circumferentially around and adjacent said head, for a purpose presently to be described.

A bracket, 19,is'secured.to the'housing, 6, andextends horizontally from one side thereof and a bracket bearing, 20, rests upon the bracket, 19, and is provided with a horizontal bearing,.21, and a vertical bearing, 22. A.

horizontal driving shaft, 23, extends through the bearing 21, and carries a pinion, 24, at its outer end while the inner end of said shaft enters the housing, 6, and is driven by any suitable power contained in said housing. In

the present instance I contemplate employing an electric motor to drive the horizontal shaft, and have shown the electrical switch,

27, on the exterior of the housing for this 5 purpose, it being deemed unnecessary to illustrate the motor in detail. At the outer end the bracket, 19, is provided with a st p bearing, 28, in which thelower end of a v rtical shaft, 29, rests. This vertical shaft carlies a bevel gear, 30, which meshes with and is driven by thepinion, 24-, on the horizontal drivin shaft, 23. The upper end of the vertical s aft, 29, carries apinion, 31,. which meshes with and drives a gear, 32, on a horizontal shaft, 33, which latter is sustained in bearings, 25, at the upper sideof the bracket, 20

The valve, 13, is to be moved longitudinally in the chamber, 9, through the operation of the valve-stem, 16, and inorder to efiect this operation, I rovide a movable rack-bar, 34, having teet at its lower side, and this rack-bar is pivotally connected to a rod, 38, which latter is provided with a central longitudinal slot, 35, into which a central tongue, 36, on the rack bar, 34, projects,the

' two parts bein pivotally connected by means of a horizonta pivot pin, 37.

The rod, 38, to one end of which the rack bar is pivotally connected has its other end connected with the valve stem, 16, by .means of a two-part sectional coupling, 40, which latter has a slot- .the end of the'valve stem.

a similar cavityin thehead, 17, and thus,

there is provided an anti-friction thrust bear- -in between the coupling and valve-stem. A co lar, 44, encircles the slotted portion of the sectional couplin to hold the head, 17, in

place in the coup ing recess. A

In order to support the rack-bar and the valve-stem I provide on top of the bracket, iv 20, a bearing- 45, through which the. rackbar and rod, 38, slides when-moved longitudinally, and a pinion, 46, is carried on a horizontal shaft, 33, and meshes with the teeth of the rackbar to move-the latter. A hand grasp, 47, is provided on the outer end of the rack-bar by means of which said bar may be presently be explained.

From the foregoing description it will be seen that as the vdriving shaft, 23, revolves it will operate the Vertical shaft, 29, and also the horizontal shaft, 33. the horizontal 'shaft will cause the rack-bar to move longitudinally and thus drive the chamber, 9, so as to efi'ect agradual closing chamber, 9. During this inward closing movement of the valve I prefer to impart a rotation to the needle valve, 13, in order that the latter may grind its way through the chamber and effect a tight closure against the seat, 11, by-slightly rotating as it contacts with said seat. To accomplish this roa spiral groove, 49, which extends circumferentially around the valve and in a longitudinal direction and 'a-stationary pin, 50, is rigidly secured in the wall of the valve groove so that as the valve is -moved longitudinally it will also turn. The turning of the valve with respect to the cou ling, 40, is facilitated by the interposition'o the-antifriction ball, 43.

By the construction herein described the quantity of oil admitted to the carbureter will automatically be gradually reduced from the. beginning to the end of the run period after the valve has been moved to the wide open position, but in addition to this general reduction in the quantity of oil, it is desirable that at the end of each run thesteam and oil shall b'oth'be entirely out ofi. The mechanism for accomplishing this will now be described. e w

A bracket, 51, projects above the valve casing and forms a support for a horizontal bar, 52. One end of thls bar is sustained or rests in a trip arm, 53, which is carried on and moves with the valve stem, 16, and collars, 54, and, 55, are provided on the horizontal bar, 52, at op osite sides of the trip arm. A suitable va ve, 56, is rovided in the oil pipe between the supp y and the valve chamber, 9, and the stem, 57, of this valve extends entirely through the valve casing and carries an o erating arm, 58, at one end while to the ot er end of said stem there is attached an arm, 59, carrying a weight, 60. A link-bar 61, has one end pivotally connected to the forward end of the horizontal bar, 52, so as to swing in a This revolution of tation of the valve I provide the latter with easing, 7, and projects'into the said spiral drawn backwardly by the operator, as will stem, 16,- and valve, 13, "through the valve' of the port, 48, at the oil-outlet end of. the

vertical plane while the other end of said link-bar is pivotally connected by means of a pin, 63, to the end of the operating arm, 58. It will thus be seen that as the link-bar-is moved longitudinally toward the oil valve the o'perating'arm, 58, will swing and close the valve and thus out off the supply of oil from the valve chamber. In a similar manner the steam is cut oil by valve, 64, which is also provided with an operating arm, 65, and a we1ghted arm, 66. The link-bar, 67, that connects the arm, 65, with the bar, 52, extends along the rear of the oil valve and is pivotally connected to the bar, 52, at the opposite side from the link-bar, 61, of the oil-valve. l/Vhen the oil and steam valves are open the cut-0E needle-valve must also be open, and the steam and oil Will pass through the pipe, 68, to the injector, 69,

which discharges it into the carbureter, 5. During the blow period the oil and steam valves are closed and 'it is desirable,- for the sake of economy, to automatically shutdown the motor so that aslong as the valves are closed the motor will remain at rest, but

willimmediately and automatically start upagain upon the opening of the valves. To efiect this I provide a switch, 70, in the circuit of the motor, said switch being of the ordinary knife-blade type, and an operating bar, 71, is-attached to and travels with the trip arm, 53, on the valve-stem. Collars, 72, and, 73, are bar, 71, at opposite sides of the switch handle, 74, so that when the valvestem reaches the limit of the inner stroke the collar, 72, will contact with the switch-handle and break the circuit, thereby bringing the motor to rest. valve-stem the collar, 73, will move the switch-handle, 74, to again effect a completion of the circuit and the motor will make another run.

In the operation of the device the heat in the carbureter is first raised in any suitable manner to the requiredor preferred temperature. During this period the need-levalve, 13, and oil and steam valves, 56, and, 64, are closed so that oil and steam cannot pass to the carbureter. When the heat in the carbureter reachesthe desired temperature the operator grasps the handle, 47, of the rack-bar, 34, and raises the free end of said bar so as to disengage the teeth from the pinion, 46, and after thus disengaging said rack-bar the operator draws the latter bar rearwardly so as to fully open the needlevalve and also the oil and steam valves. When these valves are opened wide the rackbar is then lowered to again engage the pinion, 46, and at this moment the greatest quantity of oil and steam will be admitted to the heated carbureter and immediately thereafter the rack-bar, 34, will be mechanically, gradually and continuously moved forward by the rovided on the operating Upon a reversal or return of the/ stroke the needle valve alone operates buttoward the final portion it effects the closing of the steam valve, 64, and the oil inlet valve, 56. This final portion of the stroke of the needle valve'also causes an actuation of the switch, 74, so as to cut-out the motor at the end of the run and throu bout the blow period, so that during the blow period the motor may be at rest. It will thus be seen that the valve operates so asto admit oil into the heated carbureter and to continuously vary or to reduce the quantity of oil as the tern: .perature in the carbureter falls so that the variation in the quantity of oil is mechanically effected from the beginning ofthe run reter, an oil-supply, a steam-supply, valves controlling said supplies, a valvefor radually reducing the quantity of oil su plied .to the carbureter, and 'means where y each time the valves are opened said means will gradually close the same. I

2. A gas apparatus comprising a carbureter, an oil-supply, a valve casing inter osed between the carbureter and 01 needle valve operatin lon itudinally 1n said casing, and means w ere y each time the needle valve is opened to admit oil said means will automatically operate the valve to gradually vary the quantity of oil supplied to the carbureter.

3. A gas apparatus comprising a carbureter, an oil-supply, a 'valve' for controllin said supply, means for moving said valve an means whereby the movement of the valve will cause the valve moving means to be brought to rest.

4. A gas apparatus comprising a carbureter, an oil-supply, a valve for controlling said supply, a power mechanism for gradually closing the valve, and means operated the closing of theing the valve, means operated by the movement of the valve in one direction to start the ower mechanism and means operated by the movement of the valve in the other direction to stop the power mechanism.

6. A gas apparatus comprising a carbureter, an oil-supply, a valve casing, a needlevalve in said casing, a rack-bar for operating the needle-valve and means for operating the valve toward the cut-ofi position, a' steam valve, and rneans coacting between the stem of the needle valve and the steam valve whereby to operate the latter.

8. A- gas apparatus comprising a carbureter, an oil-supply, a valve casing, a needle valve having a stem, a rack for operating the needle valve, motor mechanism for operating the rack,,a circuit breaker, and means coactbetween the clrcult and one of said mov- 1n afie parts to stop the motor when the valve has cut off the supply of oil.

9. A gas apparatus comprising a carbu- 'reter an oil supply, a needle valve interposed between the carbureter and oil supply,

means whereby the valve may be moved in one direction to open the same and means for gradually closing the valve by moving it in the opposite direction at a predetermined rate. v v

10. Agas apparatus comprising a carbureter, an oil supply, a needle valve between I the carbureter and oil supply, means whereby the valve may be moved in one direction to open the same, means for operating the valve in a reverse direction to close it at a predetermined rate, and means for rotating the valve as it is moving to the closed position.

In testimony whereof I affix my signature in presence of two Witnesses.

FREDERICK H. WAGNER.

Witnesses: CHAS. B. MANN, G. FERDINAND Voe'r.

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