US1433109A

US1433109A - Gas-producer feed

Info

Publication number: US1433109A
Application number: US309939A
Authority: US
Inventors: Oakley T Brown
Original assignee: US CAST IRON PIPE AND FOUNDRY
Current assignee: UNITED STATES CAST IRON PIPE AND FOUNDRY Co; US CAST IRON PIPE AND FOUNDRY
Priority date: 1919-07-10
Filing date: 1919-07-10
Publication date: 1922-10-24
Anticipated expiration: 1939-10-24

Description

0..T. BROWN.

GAS PRODUCER FEED. APPL|cAT|oN-F|LED 1uLY10.1919.

Ytllted 0013. 2li, 1922.

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0. T. BROWN.

GAS PRODUCER FEED.

APPLICATION FILED JuLY1o,1919.

Patented Oct. 24, E922.

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To e525' whom it may coa-cer 1 Ee known tl l, BROWN', a citizen of the U Litsd residing at 3&5 Barrett avenue, Audubon, in the county of Camdenand State of New Jersey, have invented a certain new and useful Gas-Producer Feed, of which the following isa specification.

My invention relates to feeding mechanisms for supplyin fuel, etc., to gas producers, irnaces, k1 nsand the like at intervals and at the same time sealing against gas discharge therefrom.

The purpose of my invention is to provide a small and eective automatic control for the fuel etc., located back of (generally above) the sealing mechanism.

A furthery purpose is to supply the fuel,

- etc., through a rotary sealing spider or drum to which the fuel is fed from above by means of an oscillatory scoop upon which the lcoal is'initially received and rests.

A further purpose is to utilize an oscillatory bottom for the chute and to feed the material therefrom through a seal by withdrawing the bottom.

A further purpose is to utilize 'a movable chute bottom abovea sealing rotem device and to feed the chute contents to t e rotor wholly by withdrau-'al movement of the bottom.

Further urposes will appear in the speciiicationand) in the claims l have preferred to illustrate myV invention by but one construction among thevarivous constructions in which it may be embodied, selecting a form which is extremely simple, practical' and inexpensive, but"`is reliable in use and which at the same time well illust-rates the principles ot my invention. x

Figure 1 is a section of. Figure 2 taken upon line 1-1 thereof.

Figures 2, 3 and 4 are sections corresponding to line 2-2 in Figure 1 but with some coal in the chute and a normal charge in each rotor compartment, and show dierent positions of the parts.

Similar numerals indicate like parts. In'the feedingof fuel and like materials into a gas producer, kiln or other like furdesirable that the feed shall he reasonably regular and that the amounts of f be cont-rolled wit-hout affecting the opening against discharge neces it is feed may the sealing of of gas.

In the form which l have illustrated ll have provided for adjustment of speed oi' the feeding rotor and adjustment of extent of feed to the rotor so `that in both respects variation of the quantity of feed may be had.

ln the drawings l have shoiwn a casing 5 adapted to rest upon the top of the producer or kiln and supporting an open-ended cylindrical shell 6 within which a rotor 7 is adapted to turn.

The endsl 8 of the rotor close and mal the ends of the shell andthe circumference of the rotor not only here seals against the interior of the shell duririg rotation but has bearincr therein.v l have preferred to illus trate this rotor as a spider vhaving

blades

9, 9', 9"', 93 terminating in slightl enlarged edges 10 grooved at l1 so that dlrt, tar and other mattei' which may accumulate in the grooves nmy assist in the sealing function.

The inner cylindrical shell surface 12 is interruptedv at the top to provide a filling opening 13, and at the bottom to provide a discharge opening la. Between these two it is suiiioiently extended on each side to span the distance between two adjoining ter=z minals l0 so that one atleast constantly maintains a seal with this surface.

The cylindrical lshell is preferably watercooled by compartments 15 having water inlet at 16 and water outlet at 17 connecting with any suitable water supply. This .oo-nstruction as so far described is my invention but is not claimed herein, being claimed by me in a copending application `for watercooled feeder for as producers and the like, Serial No. 289, l5, tiled April l2, 1919.

The'lling openi i 13 is shown as directly over the center of t e rotor though it may .be moved to either side of the center circumerentially without aectingvmy invention, which resides primarily in the mechanism Vfor delivering thefuel or other material from any suitable chute or supply to the maling discharge mechauismn The rotor is shown as carrying a shaft 18 terminating outside the rotor as at'19 and 20. Upon one end of this shaft is located a ratchet wheel 21 and upon the other a gear 22. Ifower may be applied to the ratchet wheels-inany of various well known ways, of which'one is shown by me ina copending application-Serial #234,400, filed May 14, 1918-providing an adjustable intermittent drive b-y a swinging latch engaging the ratchet teeth. The number' o f teeth exposed to the drive can be varied by a movable shield 23 carried by an arm 23, so as to vary the rate of delivery of the fuel. It is not my purpose to claimv this mechanism here but instead to point out that driving means as Well as control for the speed of drive of such a spider are known and may be used in connection with the delivery mechanism therefor forming the main subject of my invention.

'In 'the form herein illustrated I have intended to omit the bearings ordinarily used for sup-porting the shaft 18 and use the interior cylindrical surface of the casing to give bearing for the head of the spider, preventing undue end movement b-y any convenient devices conventionally shown as guides 24.

I supply the'fuel to the .rotor from above through a chute 25 connecting with any bin bottom or hopper 25 for storage or supply of coal 26. For clearness of illustration the coal-which will usually be soft coal, and

- often run-of-the-mine-is shown as but partly filling the chute but in use would fill it completely. The chute may be cut away as at 27', if desired upon the face 27 toward the inlet 13, here, for convenience of nomenclature considered the side face to increase the outlet provided by the slope of the b-ottom as hereinafter more fully pointed out. It has a swinging bottom or scoop 28 adapted to receive and retain the body of fuel etc., at this po-int except as the scoop bottom itself. acts to feed the fuel.

The portion 29 of the scoop or bottom is sloped to assistinfeeding the fuel out with movement of the. scoop in one direction. Though not needed for this purpose, the slope will also retard return movement of the fuel as thebottom swings back. 0n account of this slope in the bottom the swinging bottom is spaced considerably from the bottom of wall 27 even without cutting this wall away, giving a' side outlet here for fuel discharge which may be provided wholly by the spacing of the normaledge of side 27 of the chute at this point from the scoop bottom or partly by cutting away the side here to give additional outlet vas desired.

' The bottom is shown in Figure 2 in its farthest position to the right, at which it still extends at 28 beyond the side wall 27 of the chute. In this position it is preferred that the fuel slope shall be a safe one; i. e.,

one in which no fuel escapes, in order that with clockwise movement of the ro-tor, no material may be dropped into the rotor just as 'the blades are closing against the edge 30 ofthe limiting face 31.

Obviously with the position of the parts shown the mechanism could be timed to avoid dropping of fuel within any compartment which was just being closed withv an opposite direction of rotor movement in the same figure.

The swinging chute bottom 28 is supported by a shaft 32 having bearings lying upon the side toward the opening 13 of the center line of the lower p-art of the chute 25. They are formed in the sides 33 of the upper feed swinging movement ma readily. be made adjusta-ble by change in t e length of or point of attachment of the thrust rod 'to either crank arm. I have preferred toselect the upper crank arm, choosing two points of

attachment

40, 40 for the pin 41. The points at which the swinging bottom sto-ps and starts may also readily be adjusted, as by shifting the boss 42 'of the crank arm 39 about theshaft 32 and setting it in the ad-a justed position by set screw 43. The swinging bottom may be made to close the inlet opening 13 or not in the left hand position (Figure 3) as preferred.

or convenient access to the mechanism I provide an opening v44 closed by door 45 pivotedl at 46.

In operation the roto-r is turned constantly or intermittently as preferred and the swinging bottom is timed to oscillate once for each compartment of the rotor, i. e., once for each rotation of a drum and once for each compartment of a spider, accommodating the type of rotor which is used. Since the rotor in the illustration is a spider, no extended dwell or rest of the bottom is provided and the bottom canbe rocked conveniently by a gear-driven crank as shown. As there are fo-ur pockets, the gear 35 is one-quarter the size of the gear 21, giving a complete oscillation of the bottom for each opening of the rotor.

Though so little fuel would fall from the bottom when in the position shown in Figure 3 and fuel fall at this point would make so little difference with thedirection of rotation yindicated that closing of the linlet 13 by the bottom is not necessary, this opening may so easily be effectively closed by the nessuno i i Y bottom and amociated pam with this in view. Except as this closing` may be desired the exact point which the bottom stops closed by extension of t on its clockwi or forward movement'malres little diderenee.

't the right hand. end ofthe movement' of the bottom is desirabie to stop the edge 28" short of the tace 3l to avoid danger of fuel falling from the edge as one of the turn (fuel releasing or discharging) strolre of the bottom with theparts in some such position as seen 1n F1 lin operation: 'Starting with the parts in the position shown in Figure l, with thel fuel resting upon the bottom, the latter is swung forward (clockwise, in the figures) to the position shown in Figure 3, the rotor' meantime advancing the compartment last filled so that an empty compartment opens beneath the endof the bottom. Because of the pressure of the fuel in the chute and the slope of that portionof the bottom beneath it, the coal follows the bottom somewhat as shown'in Figure 3. On the return stroke of the bottom the fuel is dropped into the compartment as seen in Figure e. Since the bottom and the nearest blade or vane of the rotor are now movin in the same direction and may be given t e same or nearly the same peripheral speeds, the fuel may readily be dropped into the same part vof the compertinent opening or the discharging edge of the bottom may be made to gain upon or lose with respect to' theedge of the blade according to the radii given the parts 'and their timing with respect to each other.

The quantity of fuel fed depends upon the extent of outlet at 27' between the wall 27 and the bottom, the ex'tentof slope of the portion of the bottom beneath the chute, the character of the fuel, the pressure above the fuel outlet, the width of the'bottom, per'A pendicular to the paper and the length of stroke given the bottom. V The fuel feed may thus be nicely. suited to the. needs and practically all of it may be f fed while the rotor opening is wide open, at the same time that the 0 .ening 13 maybeq el bottom beyond face 3l for any desired dwell and an spacing of the edge of the bottom from t e face C?! es 3f may be maintained to' protect from danger of fuel being caught by dropping be# tween the forward edge of the easing inlet and the trailing edge of the rotor opening.

Having thus described my invention, what ciaim as new and desire to secure by Letters Patent is l. 'in a feed for gas producers and like coal using devices, a rotor having a corna casing having inlet and disopenings providing sealing enent with rotor and a supply chute om above the rotor providing a .v f being movable ithdraw to to-swing ,.L. n the rotor movement. f

2. ln the for pas producers and like o i. g

coal using devices, 'a casing haring cylindrical sealing surfaces, and inlet and 'discharge passages to and from' the cylindrical space thereof, a rotor therein a compartment provided with an opening adapted to move into registry with and past the inlet and discharge openings, in combination 'with a supply chute for fuel having an outlet and a swinging bottom for the supply chute adapted to carry fuel upon it out from the chute in one direction of movement and to drop the fuel so carried intothe inlet opening with a reverse direction of movement and timed operating connections between the rotor and the bottom.

3.` ln afeed for gas producers and like coal using devices, a casing having cylindrical sealing surfaces, and inlet and discharge passages to and from the cylindrical space' thereof, a rotor therein'having a compartment provided with an opening adapted to move into registry with land past the inlet and discharge'openings, in combination with a supply chute for fuel havingan outlet and a swinging bottom for the supply chute adapted to carry fuelupon it out from the chute in one direction ofmovement and effectively close the inlet opeing of the casing and to drop the fuel `so carried into the nlet'opening with a reverse direction of movement and-timed operating connecf tions between the rotor and the bottom` Il. Ina feed' for gas producers and like coal using devices. a casing having cylindrical sealing vsurfacesY and inlet and discharge passages to and from the cylindrical space thereof, arotor therein having a compartment provided with an opening adapted to move into registry with and past the inlet and discharge openings, a supply fuel chute,a bottom for the chute comprising the entire effec-tive support for the fuel in the chute and movable from beneath the fuel i3@ to drop the fuel into the rotor and timed operating connections between the rotor and bottom.

charge passages to and from the cylindricalspace thereof, a rotor therein having a compartment provided with an opening adapted to move into registry with and past the inlet and discharge openings, in combination with a chute and bottom for the chute movable to carry fuel therefrom out over the inlet opening in one direction of movement and to retract to drop the fuel into the inlet opening in the' opposite direction of movement. y

6. In a feed for gas producers and like coal using devices, a casing having cylindrical sealing surfaces and inlet and discharge passages to and from the cylindrical space thereof, a rotor therein having a compartment provided with an opening adapted to move into-registry with and past the inlet and discharge openings, in combination with a chute fuel supply open at the side and a fuel supporting movable bottom for the chute, the two affording a side opening and the bottom maintained at a slope down# wardly toward the open side and movable in a direction' across the said inlet opening to withdraw fuel from the chute and in a retracting direction to drop the 'fuel Withdrawn through the inlet opening.

7. In a feed for gas producers and like lcoal using devices, a casing having cylindrical sealing surfaces and inlet and discharge passages to and from the cylindrical space thereof, a rotor therein having a compartment provided with an opening adapted to move into registry with and past the inlet and discharge openings, and a feed therefor adapted to carry fuel over the inlet opening on its forward stroke `and to be withdrawn from under the fuel during the retractiveA movement to discharge the fuel through the opening of the 'rotor.

8. In a feed for gas producers and like coal using devices, acasing having `cylindrical sealing surfaces and inlet and discharge passages to and from the cylindrical space thereof, a rotor therein having a compartment provided with an opening adapted l to move into registry with and past the inlet drical sealing surfaces and inlet and discharge passages to and from the cylindrical space thereof, a rotor therein having a compartment provided with an opening adapted to move into registry with and past the inlet and discharge openings, in combination with a fuel delivery chute and an oscillatory curved bottom therefore timed in agreement with the rotor and so pivoted as to present a sloping surface -to the fuel in the chute. 10. In a feed for gas producers and like coal using devices, a casing having cylindrical sealing surfaces and inlet and discharge passages to and from-the cylindrical space thereof, a rotor therein having a compartment provided with an opening adapted to move into registry with and past the inlet and discharge openings, in combination with a chute at one side of the inlet opening and an oscillating bottom for the chute presenting a sloping surface to the fuel of the chute and spaced from the chute at one' sideto provide a passage, and a connection lwith the rotor to oscillate across the inlet opening to withdraw fuel through the side opening and back again to deposit this fuel through the inlet opening.

11. In a feed for gas producers and like coal using devices, a casing having cylindrical sealing surfaces and inlet and discharge passages to and from the cylindrical space thereof, a rotor| therein having a compartment provided with` openings adapted to move into registry with and past the inlet anddischarge openings, in combination with a delivery chute for the fuel an oscillatory bottom for said chute, pivoted at the side of the chute axis toward the inlet opening and spaced from the wall at one side to provide an outlet toward the inlet opening and operating connections between the rotor and the bottom adapted to move the bottoni across the inlet opening as a rotor opening passes the inlet opening, carrying fuel with the bottom and to retract the bottom as the with the inlet opening.

. l2. In a feed for gas producers and like coal using devices, a casing having cylindrical sealing surfaces anl inlet and discharge passages to and from the cylindrical space thereof, a rotor therein having a compartment provided with an opening adapted to move into registry with and past the inlet and discharge openings, in combination with a closure for the inlet opening operative to open and deposit fuel in the rotor during the earlier part of the movement of the rotor when its opening overlaps the inlet opening and to carry forward another charge for subsequent deposit during the latter part of the overlapping of the rotor opening and the inlet opening.

13. In a feed for gas producers and like passages to and from the cylindrical space thereof, a rotor therein having a compartment provided with openings adapted to move into registry with and past' the'inlet and discharge openings, in combination with a fuel supply chute and a fuel feeding bottom therefor movable across the inlet opening to close the same vand feed-fuel thereover and with return movement to deposit the fuel there-through and connections beltvveen the rotor and bottom timed to deposit vthe fuel Within the time when the rotor 'and inlet openings overlap.

14:. In a feed for gas 'producers and like coal using devices, a casing-.having cylindrical sealing surfaces and inlet and discharge passages to andv from the cylindrical space thereof, a rotor thereinhavi-ng'a compartment provided with an opening adapted to move into registry with and past the inlet and discharge openings, incombination with a fuel chute at one side of the inlet opening a bottom therefor comprising a portion of a cylinder pivoted out of line with the axis of the chute, and spaced from the chute wall to close and open the same, a crank 'arm' atone side to allow fuel outlet, a crank arm adapted to swing the bottom transversely of the chute to cfoss the inlet opening tending operatively connected with the rotor and a connection between the arms.

15. In a fuel feed for gas producers and llke coal using devlces, a sealing mechanism 'having a movable compartment provided with an opening for receipt and discharge of the fuel in combination with a fuel feeding mechanism therefor located over the compartment and having a vfuel discharging member movable during discharge in the same direction as that of the compartment opening.

fcated above said memberV and having swinging movement during delivery of fuel therefrom in the same direction as the adjoining surface of the rotary member.

17. A rotary feeding memberv adapted to receive and discharge fuel While sealing against gas leakage therethrough, in combination with an oscillatory scoop thereover, adapted to supply fuel thereto and carrying fuel into position for discharge thereinto during one portion of the movement of the rotary' member and in the reverse movement of the scoop moving in the same direction as the adjoining surface ofthe rotary member and dropping the fuel from the scoop which has been carried over the rotary member.

oAKLLEYVT. BROWN 16. In a fuel feed for gas producers and