US2289347A

US2289347A - Gas producer

Info

Publication number: US2289347A
Application number: US253081A
Authority: US
Inventors: Daae Reinhardt
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-01-27
Filing date: 1939-01-27
Publication date: 1942-07-14
Anticipated expiration: 1959-07-14

Description

R.` DAAE GAS PRODUCER July 14, 1942.

Filed Jan. 27, 1939 3 sheets-sheet 2 111.11LMLI HIGH L11. H44

. INVENTOR Rezhadlaae R. DAAE f GAS PRODUCER Filed Jan. 27, '1939 July `14, 1942.

I l. o 72 3 Sheets-Sheet 1 Reinhardt 17am? Sm, MVM

July 14,` '1942. R. DAAE GAS PRODUCER Filed Jafn. 27, 1939 3 sheets-sheet 3 121 lNvEN-roR Re/zlnhardflaa'e Patented July 14, 1942 UNITED STATES PATENT OFFICE 2,289,347 GAs PRODUCER Reinhardt Daae, Youngstown, Ohio Application January 27, 1939, Serial No. 253,081

2 Claims.

Figure 1 is a vertical section of my gas producer;

Figure 2 is a plan View of the grate of my producer partially broken away to show a part of the grate in section.;

Figure 3 is a section along the lines III-III of Figure 2;

Figure 4 is a vertical section of the coal feeding opening in the cover of the producer;

Figure 5 is a section along the lines V-V of Figure 4;

Figure 6 is a partial plan view on an enlarged scale of the cover of my producer;

Figure 'l is a section along the lines VII-VII of Figure 6;

Figure 8 is an end viewof the poker reversing mechanism shown in Figures 6, 7 and 8; and

Figures 9 and. 10 are plan views of levers utilized in the poker reversing mechanism illustrated in -Figures 6,` '7 and 8.

As shown in Figure 1, my gas producer comprises a producer body l'I supported by standards l2 having a gas port I la and containing the fuel bed I3. The lower portion of the producer body II is surrounded by a water jacket I4 having a cold Water inlet pipe I5 and a steam outlet pipe I6. The steam outlet pipe I6 leads to a three-way valve 'Il by which steam maybe di.- rected to an air pipe I8 through the pipe I9 or may be utilized for some other purpose by passing through the pipe 2U. The air pipe I8 extends beneath the fuel bed I3 and supplies air necessary for combustion through a grate designated generally by the reference number 2I as will be hereinafter described. The producer body II is closed at the ktop by .a rotating cover 22 which rotates on and is supported by wheels 23 which revolve about horizontal axles 24 secured to the producer body. Wheels 23a, revolving about vertical aXles engage the periphery of the cover and keep it centered over the producer body II. `The top of the producer body II supports Aa trough 25 which with a flange 23 extending downwardly from the cover 22 forms a water seal between the producer body and the rotating cover. The outer edge of the trough 25 carries a beveled ring gear 2l which is used to drive various parts of Vmy producer as will be hereinafter described.

The cover 22 is rotated by any suitable source of power having a driving connection with a pinion v28. The pinion 28 meshes with a spur 'gear 29 which rotates about a horizontal axis and turns a worm 30 mounted on the same shaft. The worm 30 rotates a wormr wheel '3| mounted on a short vertical shaft 32. A spur gear 33 keyed to the shaft 32 meshes witha ring gear 34 which is fastened to the periphery of the cover 22.

The bottom of my gas producer likewise rotates relatively to the producer body. As shown in Figure l, the bottom of the producer comprises an annular trough 35 which forms an ash receptacle and also in cooperation with a flange 3'8 extending downwardly from the producer body a Water, seal for making the bottom of the producer air-tight. To enable the trough 35 to rotate, brackets 3l extend downwardly from the bottom of the trough 35 and support beveled wheels 38 which run on a track 39. A Water seal around the air pipe IIB is provided by an annular trough 40 and a ilange 4I extending downwardly from an extension 42 of the inner edge of the trough 35. I

Rotation of the trough 35 is obtained by eccentrically pivoting a p itman 43 on the spur "gear 29. Rotation of thegear 29 causes the pitman 43 to rise and fall which in turn raises and lowers a lever 44 to which the pitman is connected at its lower end. When the lever 44 rises, a pawl 45 pivoted on the jlever 44 engages a ratchet wheel 45 keyed on a horizontal shaft 4l and rotates the ratchet wheel. A worm 48 is alsoL keyed to the shaft 41 and upon rotation turns `a. worm wheel 49 mounted on a short vertical shaft 50. A spur gear 5I integral with the worm Wheel 49 meshes with a ring gear 5Ia secured to the bottom of the trough 35 and thus drives the trough.

Ashes are removed from the fuel bed I3 by rotation of the grate 2| which as shown in Figure 1 of the drawings is supported by a carrier 52 which rests on the extension 42 of the inner edge of the trough 35. As shown in Figures 2 and 3, the grate comprises a plurality of truncated sectors 53 which are bolted to each other along their radial edges to the carrier .52 and to anelliptically shaped top section 54. `The radial edges of each sector have

Vertical faces

55 and 56, the face 55 of each sector being substantially higher than the face 56. Each sector has a sloping top surface 51 which joins the top portions of the two

vertical faces

55 and 55.

The sectors 53 are bolted to each other by means of lugs 58 so that the higher vertical face 55 of one sector is neXt to the lower vertical face 56 of the adjacent sector. Thus, the top surfaces 51 form with the vertical edges 55 a series of radially extending troughs down which ashes may slide itno the annular trough 35. As shown in Figure 1 the ends of the sectors adjacent to the top section 56 are higher than the ends of the sectors supported by the carrier 52 so that the grate has the appearance of a cone with a plurality of radially extending ribs.

The sectors 53 are chambered so that air from the air pipe I8 may be blown through them into the fuel bed I3. The air is directed into the fuel bed by Ythe sectors 53 through air passages 59 positioned in the top of the vertical faces 55. By placing the air passages 59 near the top of the vertical faces 55 ashes sliding down the troughs formed by the top surfaces 51 and vertical faces 55 will .not clog the air passages. I havefound it preferable to .so rotate the complete grate that air is blown out over the top surfaces 51 in a direction opposite the direction of rotation of the grate.

To assist in the breaking up and removal of ashes from the fuel bed the top section 55 has an elliptically shaped bottom portion E! so that the bottom edge of thegrate 2l is elliptically shaped although the sectors for convenience in manufacture may all be made ofthe same length. Since the lower edge of the grate is elliptically shaped the distance between a point on the lower edge of the grate and a fixed point on the producer body II will vary upon rotation of thel grate. This change in the space down which the ashes fall to the trough 354 assists in the removal of the ashes by breaking up any clinkers which may be formed. The top section 54 has `a cylindrically shaped middle portion .6I Vand a conically shaped top portion .62. A scoop 63 is fastened to the cylindrical portion 6I of the top section and extends out overthe Vellipticallyshaped bottom portion 68. This scoop 63 .furtherassists inthe breaking up and removal of ashes from the fuel bed I3. The center section 54 ischam bered to permit passage of air therethrough to the fuel bed.

The ashes are removed from theA trough by a plow 65 which may be raised and lowered by turning a rod which is geared to a short threaded rod 65 which extends down theV center of the plow 55 and ycooperates. with a threaded nut 61 whereby rotation of the rod V66 raises and lowers the nut 61 and consequently the plow 64.

As shown in Figure 1 coal or other fuel which is to. be burned in the producer body lII is kept in a hopper 68 mounted above the producer so that fuel may be fed into the producer body by gravity. The rate at which fuel is vfed to the producer is controlled by a fuel feeding member 69 of the frictional type such as is shown for example in my Patent No. 1,D31,695,'granted August 6, 1912. The member 69 forms a movable bottom for the hopper and controls the amount -of fuel fed into the producer by reciprocating back and forth across the bottom of the hopper. Thus when the memberV 69 is moved totheright,

edge while upon movement in the opposite direction it forms a support for the descending body of fuel which builds up thereon as determined by the size of the opening 16 and the angle of repose of the material.

A reciprocating motion is imparted to the member 69 by a link 1I pivotally connected to a bell crank lever 12. The other arm of the bell crank 12 is connected to a pitman 13 which in turn is connected to one end of a lever 14. The lever 14 is secured to a horizontal shaft 15 which carries a second lever 16. A pitman 11 eccentrically pivoted on a gear 18 imparts a reciprocating motion to the lever 16 and to the member 69 because of the linkage above described between the link 1I, the bell crank lever 12, the pitman 13 and the lever 14. The driving pinion 28 meshes with a gear 19 which in turn meshes with the gear 18.

The fuel passes from the hopper 68 down a chute 8D to a rotary feeding and sealing means SI. The construction and operation of the rotary feeding and sealing means 8l and of the Scrapers 82 and 83 which are mounted on weighted levers 84 and 85 and which are designed to prevent damage to the feeding and sealing means in case large lumps of coal or foreign material are delivered to the pockets 85 of the rotary feeding and sealing means 8| are described in my Patent No. 1,819,836 granted August 18, 1931, and form no part of the present invention.

The rotary feeding and sealing means 3| is not perfectly gas-tight. Occasionally, therefore, combustible gas generated in the producer body II will escape through the sealing means and go up t-he chute 89 where it may ignite. I locate the hopper 68 above the chute 80 so that there is an opening to the left of the bottom of the hopper, viewing Figure 1, which will by-pass the open name to the atmosphere and prevent ignition of the fuel in the hopper 53. However, the hopper should be so located that the member 69 does not extend at the end of its movement to the right beyond the edge of the chute 8i) so that coal dust falling off the right-hand edge of the member 69 will fall down the chute.

The fuel is discharged from the pockets 66 into a fuel feeding opening 81 in the cover 22 of the producer. Upon leaving the pockets 86 the fuel falls on chutes 88 which are pivotally mounted in and extend across the fuel feeding opening. Figures 4 and 5 show the construction of the chutes 88. The chutes have flanges 89 which pivot about bolts 99 extending through the sides of the fuel feeding opening 81. Additional bolts 9| extend through the other'sides of the fuel feeding opening and the lower ends of the chutes 88 and hold the chutes in position. By turning nuts 92 on the Vbolts SI the slope of the chutes may be adjusted as desired for proper distribution of the fuel onto the fuel bed I3. As is shown in Figure 5 the chutes 93 do not extend completely across the fuel feeding opening 81 but leave a space betweenthem through which fuel may fall from the fuel feeding and sealing means 8| directly onto the fuel bed I3.

To stir the fuel bed and to distribute it evenly through the producer body II, I provide a hollow poker 93 which extends down through the cover 22 and which is connected to a water tank 94 supported by the' sides of the chute 86. The poker is held in proper position by a cylindrical holder 95 which rotates in a circular flange 96 seated` on the cover 22. `I provide for'rotation of the poker 93 so that all portions of the fuel bed may be reached thus insuring better stirring and distribution of the-fuel in the fuel bed I3. The drive for rotating the poker consists in a bevel gear 91 (Figure 6) which extends through a hole in the cover 22 and meshes with the ring gear 21 secured to the outer edge of the trough 25. Rotation ofthe cover 22, therefore, causes rotation of the gear 01. The gear S1 is keyed to a shaft 08 mounted in bearings 99 on the cover 22. Rotation of the shaft 98 drives two oppositely rotating gear trains |00. The end gears of the gear trains |00 rotate freely on a shaft |0| and are made integral with square-toothed gears |02 which likewise run freely on the shaft |0I. A double-faced gear |03 with teeth out to mesh with the gears |02 is splined to the shaft |0| so that by sliding the gear |03 into mesh with first one and then the other of the two gears |02, the direction of rotation of the shaft |0| may be changed. The mechanism for shifting the gear |03 will be hereinafter described. The shaft |0| carries a worm |04 which meshes with a toothed sector |05 secured to the periphery of the holder 05. The shaft 98 also drives a gear train |06 which drives the rotary feeding and sealing means 8| as described in my Patent No. 1,819,836, granted August 18, 1931.

Figures 6, '1, 8, 9 and 10 show the mechanism for shifting the gear |03. about a vertical shaft |08 and having two arms |09 and ||0 is used to shift the gear |03 in and out of mesh with the gears |02. The vertical shaft |08 is mounted in a base which is secured to the top of the cover 22. The arm |09 of the lever |01 is forked and the prongs of the fork are slotted to grip small studs ||2 which extend from a ring around the gear |03. A second lever ||3 having two arms ||4 and ||5 is mounted on and rotates about the shaft |08 above the lever |01. The arm 4 of the lever ||3 is forked to provide two horizontally spaced prongs ||0 and carries a U-shaped member ||1 having flanges ||3 which extend down beyond each side of the arm ||0 of the lever |01. The flanges H0 carry adjusting screws ||9 by which movement of the lever |01 by movement of the lever ||3 can be adjusted. A vertically extending lever |20 is pivoted about a horizontal shaft |2| mounted in the base The lower end of the lever |20 is shaped in the form of a spade with the upper portion of the spade cut out. The arm ||0 of the lever |01 extends through the cut-out portion of the spade. The upper end of the lever |20 carries a weight |22 which may be set in various positions along the lever |20 by means of the set screw |23.

The operation of the reversing mechanism is as follows. The poker holder 05 has two vertically extending pegs |24 near its periphery. Upon rotation of the poker the pegs 24 strike the arm ||5 of the lever ||3 and cause the lever to rotate about the vertical shaft |08. When the lever I3 rotates about the shaft |08 one of the adjusting screws I9 strikes the arm 0 of the lever |01 and causes the lever |01 to rotate. The arm |09 of the lever |01 will thus move the gear |03 partially out of mesh with one or the other of the gears |02. Upon further movement of the lever I3 one of the prongs ||6 of the lever ||3 strikes the lever |20. Continued movement of A lever |01 pivoted the lever 3 will cause the lever |20 to move past a vertical position and thus the weight |22 will overbalance. Under the action of gravity the overbalanced weight will move in a vertical arc until one edge of the spade-shaped end of the lever |20 strikes the arm ||0 of the lever |01. The momentum of the falling weight is transmitted to the arm |00 of the lever |01 and snaps the gear |03 completely out of mesh with one and into mesh with the other of the gears |02. The direction of rotation of the carrier 95 will thus be changed and the poker will revolve in this direction until the lever 5 is struck by another one of the pegs |24 in which case the levers |01 and ||3 will be moved in an opposite direction and the weight |22 will be swung to the opposite end of its arc of movement and the gear |03 will again be shifted from one to the other of the gears |02.

Because of the improvements above described, the coal is automatically fed in the right quantities to the combustion chamber and is evenly distributed therein. The revolving grate effectively removes the coal ashes and prevents them from clogging the air passages by which air necessary for combustion is supplied to the chamber. Reversing mechanism which controls the gears which drive the poker insures positive change of direction of rotation of the poker which in turn insures a thorough stirring and even distribution of the fuel throughout the fuel bed. By reason of these improvements my gas producer will operate automatically at a high rate of efciency and for long periods of time.

While I have shown certain present preferred embodiments of my invention, it is to be distinctly understood that they may be otherwise embodied within the scope of the following claims.

I claim:

1. In a gas producer, a rotary grate of generally conical shape comprising a plurality of sectors having vertical faces along their radial edges, one vertical face being substantially higher than the other, a top surface sloping from one vertical edge to the other, air outlets adjacent the top of the higher vertical face of each sector, the sectors being joined together along their radial edges so that the high vertical face of one sector is adjacent the low vertical face of the next sector thereby forming a passage down which ashes may pass for removal from the producer, the difference in height between the vertical faces being such that during operation of the producer the ashes may move down the passages below the air outlets.

2. In a gas producer, a rotary grate of general conical shape having a plurality of radially eX- tending ribs, each of said ribs having a substantially vertical face and a sloping face extending from a point adjacent the top of the'vertical face of the rib to a point adjacent the bottom of the vertical face of the succeeding rib, and a plurality of air passages positioned adjacent the top of the vertical face, thereby forming a series of troughs down which ashes may slide beneath the air passages for removal from the producer.

REINHARDT DAAE.