US1573811A - Fuel feed for gas producers - Google Patents

Description

Feb. 23 1926. 1,573,811

R. DAAE Pult; FEED Fon GAS PRODUCERS Filed June '7. 1925 3 Sheets-Sheet 1 Feb. 23 1926. v 1,573,811

R. DAAE FUEL FEED FOR GAS PRODUCERS Filed June 7. 1923 3 Sheets-Sheet 2 INVENTOR Feb. 23 1926. 1,573,811

R. DAAE FUEL FEED FOR GAS PRODUCERS Filed June 7. 1923 3 Sheets-Sheet 3 T Lfv" 2 INVENTOR @wl ,ahJf-pawd'u. l

PATENT o Fica.

BEINHARDT DAAE, F YOUNGSTOWN, OHIO.

` FUEL FEED FOR GAS PRODUCERS.

Application led June 7, 1928.y Serial No. 648MB.

To all whom it may concern.' e

Be it known that I, REINHanm Daan, a citizen of the United States, residlng at Youngstown, in the county of Mahoning and State of Ohio, have invented a, new

and useful Improvement in Fuel Feeds for `Gas Producers, of which the following is a full, clear, and exact description.

The present invention lrelates broadly to fuel feeding mechanism, and more particularly to mechanism of this character especially adapted for feeding fuel to gas producers.

It has heretofore been proposed to pro vide rotary fuel feeding members for gas producers, which members receive their supply of fuel from reciprocating or frictional fuel feeding means. Such combinations have proven highly desirable for the reason that the rotary feeding members form artial seals for the producers, and the rictional fuel feedin means deliver fuel thereto under such conlitions that the possibility of breakage is minimized. It has been found, however, that considerable difficulty is encountered in the operation of such frictional fuel feeds due to the deposit thereon cfJf arry material which passes the rotary Further objections have arisen due to the passage of foreign material into the feeding pockets of the rotary feed and the rojection of such material be ond the disc arge end of the pockets where y damage to the enclosing casing has frequently resulted.

By the present invention there is provided a fue] feeding mechanism of this character, adapted to insure a more uniform" feed of fuel without danger of any breakage and without liability of clogging up by reason of the formation of tarry matter within the producer. Y

In the accompanying drawigsthereis shown, for pur oses of illustration only, a preferred emb iment of the present iifention, it being understood that the drawings do not define the limits of this invention, as chan es may be made in the construction andg operation herein disclosed without departing from the spirit vor scope of my broader claims.

In the drawings,-

Figure -1 is a vertical sectional view -through a fuel feed embodying the presenty invention, the section being taken n the line I-I of Figure 2;

by a cover 3 having Figure 2 is a, side elevation of the construction illustrated in Fi re 1;

Figure 3 is a vertica sectional view througlrthe fuel feed on the line III-III of Figure l;

Figure 4 is a detail view illustrating a portion of the actuating mechanism foi' the rictional fuel feed; an

Figure 5 is a detail view illustratin a slightly modified form of frictional el feeding mechanism.

YIn accordance with the present invention, there is rovided a producer body 2 of any standar construction, adapted to be closed means for insuring a water seal 4 between the body of the producer and the cover. A

Preferably the producer is of the type in which there is a rela-tive rotational movement between the body and the cover, such movement being obtained either by rotating the producer body or maintaining this body stationary and rotating the cover. In the illustrated embodiment of the invention the cover is adapted to`be rotated at any desired speed by means of a gear 5 driven from a suitable source of power, not shown. During this producer is adapted to have fuel fedthereto in measured quantities through a fuel feeding opening 6 Provided in the cover.

The mechanism or feedin the fuel may conveniently comprise a fue? chute 7 having its vertical axis substantially coincident with the axis of rotation of the cover, whereby coal may be continuously supplied thereto during the operation of the producer.

'Forming the bottom of the chute 7 is a slide Vplate 8 on which is adapted to reciprocate a frictional fuel feeding member 9. This frictional fuel feeding member is adapted to be reeiprocated by means of links 10 pivotally connected at one end to the member and at their opposite ends to the crank arm 11. This crank arm is carried by a transversely extending shaft 12 from which pro- ]ects a second crank 13 adapted to be o ated as hereinafter.- more fully descr-i d. During the movement of the fuelfeeding member 9 to the right 1, the effective area of its upper surface for the reception of fuel will be increased, whereby upon movement thereof in the opposits direction a certain definite uantity of the fuel carried thereby will be (frictionally fed forwardly by the inclined back wall relative rotational movement, the

loo'

as viewed in Figure an angle of repose.

14 of the feed chute. This inclination is highly desirable as it insures a passage of fuel to the frictional feeding member and more effectively assists in the pushing of the fuel from such member on its back stroke.

It will be apparent that the surfaces which support the frictional feeding member are in sliding engagement therewith, whereby reciprocation of the member 9 tends to prevent the accumulationV of any foreign material on the surfaces. To further assist in this respect, there are provided water connections 15 tending to continuously supply a predetermined amount of water to. these surfaces whereby the adherence of tar is prevented. In this tion of the frictional feeding member is 1nsured at all times.

The front end of the frictional feeding member preferably projects into a casing 16 into which the member discharges through the lateral opening 17 in the chute The amount of projection is determined generally by the dimensions of the opening 17 and the character of the material being handled, to insure that the material may always assume The extentof the opening 17 may be varied atl will by an adjustable gate 18. For receiving the fuel asdischarged by the frictional fuel feed, there is provided a rotary feeding member 19 having a series of pockets 20 therein. These pockets are so shaped that the area at the discharge portions thereof is as great as the greatest area at an point within the pocket, whereby the free ischarge of all of the fuel therefrom is insured. This feature is ofconsiderable importance, as it has been found that overhanging ledges and the like not only tend to collect tar but to prevent the free discharge of the fuel.

I have found that in order to 'secure efficient results, it is not practicablev to drop the fuel downwardly onto the rotary fuel feeding member, as lumps of the coal frequently assume such positions as to interfere with the rotation of the rotarymember in the casing 16. For this reason the frictional fuel feeding means is located entirely to one side of the rotary member and is preferably below such member, whereby the fuel is fed laterally into the successive pickets as they are brought into position.

uring rotation of the member 19 in the direction of the arrow a, the filled pockets are brought successively into cooperative position beneath a crushing, distributing and wiping roller 21, which roller `tends to remove any fuel or foreign material projecting beyond the openings of the pockets,

and to compact the material therein whereby the filled pockets may easily pass into such position as required within the casing. To prevent the accidental passage of any fuel means, said plunger having a central pasmanner uniform operavdish 39 formed with a diametricallv sage therethrough and lateral openings from tion of the rotary member, there is provided a transversely extending angle 1 late 22. Continued rotation brings the poc cts successively into position, discharge into the outlet 23 communicating with the opening 6 in the cover. In order to etfectively distribute the discharged fuel and feed itl uniformly over the fuel bed in the body ,of the producer, Vthere is provided a half-bell 24. This halfbell is preferably so carried that it may be. adjusted radially to vary the fuel feed to an extent determined by the length of the slotted opening 25.

The operation of the parts in timed relation to r,the relative rotational movement between the producer and cover may be obtained by mounting on the cover a shaft 26 extending radially or diametrically thereof and carrying at its outer end a-bevel gear 27 adapted to project through the cover and engage the gear teeth 28 carried by the upper end of the producer body. At an intermediate point, the shaft 26 carries a spur gear 29 meshing with a similar gear 30 on the shaft 31. This gear in turn drives a spur gear 32 meshing with an idler gear 33 for driving the gear 34 carried by the shaft 35 upon which is mounted the roller 21. At its opposite end the roller shaft is provided with a gear 36 meshing with a pinion 37 on a transversely extending shaft 38. At its opposite end this shaft carries a extending slot 40. Adjustably secured within this slot is one end of a pitman 41, the opposite end of which is adjustably connected to the crank arm 13, as clearly shown in Figure 1. By reason of this construction it will be apparent that the roller 21 is continuously rotated during the movement of the cover 3, at a speed higher than the speed of rotation of the rotary feeding member 19 and in the same direction, whereby the engaging surfaces move in opposite directions` thereby tending to effectively remove any projecting material. The shaft 38 is also o erated at a higher speed than the speed o rotation of the rotary feeding member, whereby the frictional feeding mechanism has imparted thereto a plurality of reciprocatory movements during such time as each of the pockets 2O is in fuel receiving position. This operation has been found highly desirable, as with a short stroke of the member 9 much more uniform fuel feeding is possible than with a longer stroke. This result is probably due to the vibratory movement imparted to the coal whereby a constant feed through the chute T is insured, thereby maintaining a more com act body of fuel in position to be discharge by the frictional fuel feed.

It will be apparent that by adjusting the whereby they may position of the pitman 41 with respect to the slot 40 in the actuating vdisk 39, the' length of stroke of the pitman may be varied at will. Also, by means of the adjusting mechanism 42 carried by the crank arm 13, the operation of the frictioiial feeding member 9may be further varied.

In Figure 5 there is illustrated a slightl modified form of the invention in wliicii parts corresponding to the parts already described have been designated by the saine reference characters as those heretofore used but having a prime affixed thereto. In this form of the invention the member 9 is slightly inclined downwardly toward its discharge end. This construction has been found desirable in certain gas producers, due to the character of the fuel being handled.

Considerable difficulty is experienced in the operation of gas producers having rotary fuel feeding means, due to the tendency of the same to expand under tlie influence of the heat and bind. In order to overcome this objection, the rotary meinber 19 is preferably provided with a series of chambers 43 which may be filled with asbestos or other material tending to iinpart the desired characteristics. The ends or heads 44 of the rotary member are preferably mounted to rotate on flat bearings in the sides of the casing 16, whereby in the event of any tar deposits on these surfaces it may work outwardly therethrough without interfering with the rotation of t-lie parts. .At the outside of the casing the tar is permitted to drop downwardly into the bearing brackets 45.

The advantages of the present invention arise from the provision of a frictioiial fuel feeding mechanism delivering to a rotary feeder and so located as to be laterally disposed with respect to the rotary feeder. Further advantages arise from the construction of the frictional feeding niechanisiii whereby the operation is not impaired by the action of the tar produced by the producer.

Still further advantages arise from the construction of the rotary feeding member and the roller cooperating therewith, together with the half-bell for effectively distributing the fuel.

I claim:

l. In a fuel feed for gas producers` a chute, a casing. fuel feeding means at the lower end of the chute for delivering fuel to one side of the casing, mechanism for operating said fuel feeding means to periodically deliver predetermined qualititirs of fuel thereby, :i rotary feeder in the casing having a pocket which is brought to filling position relative to the feeding means` the feeder being so positioned that. fuel which iii-jects beyond the pocket will fall back toward the feeding means, substantially as r:destsribed.

2; Ina fuel feed-for gas producers, a chute, a casing adapted to receive f-uel from the chute, means for-feeding fuelfrom the chuteto the casing, mechanism for voperating said fuel feeding means to periodically deliver predetermined quantities of fuel thereby, a rotarv 'feeding member in the casing liavinga feed pocket, a rotarywiper cti-acting with the feeding member, and means for causing the fuel feeding member and wiper to rotate in the same direction so that surplus fuel will be wiped from tlie pocket, substantially as described.

3. In a fuel feed for gas producers, a casing, a rota-ry feeding member in said casing provided with a fuel pocket, a chute, 4frictioniil fuel feeding means located in said chute laterally of said rotary feeding member and below the top thereof for feeding fuel thereto. and operating mechanism for said fuel feeding means, substantially as described.

4. In a fuel feed for gas producers, a casing, a rotary feeding member in said casingl provided with a pocket, a chute terminating at one side of the casing below the top of the rotary feeding member. a frictional fuel feeding means for transferring fuel from said chute to said member and operating mechanism for said fuel feeding means, substantially as described.

5. In ii fue] feed for gas producers, a 'casing, a rotary feeding member in said casing provided with a plurality of fuel receiving pockets. vibrating frictional fuel feeding ineans for delivering fuel to said pockets, and means for causing the frictional fue] feeding means to make a number of short and rapid vibrations while eachof said pockets is in fuel receiving position, substantially as described.

6. In a fuel feed for gas producers, a casing, a rotary feed-ing member in said casing provided with a plurality of fuel pockets` a. reciprocating fuel feeding member for delivering fuel to said pockets, and means for imparting a plurality of short and rapid eciprocations to said reciprocating means While each pocket is in fuel receiving position. substantially as described.

7. In a fuel feed for gas producers, a easing, a rotary feeding member in said casing provided with a plurality of fuel receiving pockets` vibrating frictional fuel feeding means for delivering fuel to said pockets through an opening in the casing. means for causing the fi'ictional fuel feeding means to iiialie a number of short and rapid vibrations `.vliilc euch of said pockets iS iii furl receiving position, and an adjustable gate for said opening for varying the amount of fuel fcd by the said fuel feeding means, sulis-intially as described.

8. In a fuel feed for gas producers, a cas ing, a rotary feeding member in said casing provided with a plurality of fuel pockets, a. reciprocating fuel feeding member for delivering fuel to said pockets through au opening in the casing. means for imparting a plurality of short and rapid reciprocations to said reciprocating means while each pocket is in fuel receiving position, and an adjustable gate for said opening for varying the amount of fuel fed by said reciproeating member, substantially as described.

9. In a fuel feed for gas producers. a fuel feed chute, a recprocatory member forming the bottom of said chute, and means for supplying a stream of water to the fuel feeding surface of said member during its reciprocation, substantially as described.

10. s, fuel feed for gas producers, a casing, a feeding member in the casing having a. fuel pocket therein, means for slowly moving the feeding member to shift the pocket `from receiving to delivering position1 there being an opening in the casing through which the fuel is fed to the feeding member, n vibrating feeder inthe opening, and means vibrating the feeder at a high speed when compared to the speed of the feeding member, substantially as described.

In testimony whereof I have hereunto set my hand.

REINHARDT DAE.

8. In a fuel feed for gas producers, a c asing, a rotary feeding member in said casing provided with a plurality of fuel pockets, a reciprocating fuel feeding` member for delivering fuel to said pockets through an opening in the casing. means for impart1ng a plurality of short and rapid reeiprocations te said reciprocating means while each pocket is in fuel receiving position, and an adjustable gate for said opening for varying the amount of fuel fed hy said reciproeating member, substantially as described.

9. In a fuel feed for gas producers, a fuel feed chute, a reciprocatory member forming the bottom of said chute, and means for supplying a stream of Water to the fuel feeding surface of said member during its reciprocation, substantially as described.

10. In a fuel feed for gas producers, a casing, a feeding member in the casing having a fuel pocket therein, means for slowly moving the feeding member to shift the pocket from receiving to delivering position, there beingr an opening in the casing through which the fuel is fed to the feeding member, a Vibrating feeder in the opening, and means vibrating the feeder at a high speed when compared to the speed of the feeding member. substantially as described.

In testimony whereof I have hereunto set my hand.

REINHARDT DAAE.

Certificate of Correction.

It is hereb certified that in Letters Patent No. 1 573 811 ranted F b 1926, upon t ea, plication of Reinhardt Daae, of foungstorgvn, Ohio, efolruilny 5113- provement in uel Feeds for Gas Producers, an error appears in the printed specification requiring correction as follows: Page 2, line 65, beginning with the means strike out all to and including the word from in line 66, and insert instead above and behind the roller 2J into al` position where it would t wat?! the rote; and that the said Letters Patent should be read with fiisrrli rectlon therein that the same may conform to the record of the case in the Patent Signed and sealed this 6th day of April, A. D. 1926.

J. MOORE, Actmg Uommzssoner of Patents.

Certificate of Correction.

It is hereb certified that in Letters Patent No. 1,573,811, granted February 23, 1926, upon t e application of Reinhardt Daae, of Youngstown, Ohio, .for an improvenient in Fuel Feeds for Gas Producers, an error appears in the printed spocication requiring correction as follows: Page 2, lino 65,`beginning with the word means strike ont all to and including the word from in line 66, and insert instead above ami behind the roller .9] into a position where it would interfere with the 'rota; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oice.

Signed and sealed this 6th dey of April, A. D. 1926.

[smh] M. J. MOORE,

Acting Commissz'om of Patents.

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