US1524092A - Conveyer fitting - Google Patents

Description

Jan. 2/7, 1925- 1,524,092

J. s. s. FuLToN convma FITTING Y Filed oct. s1. 1921 3 ysheetssheet 1 @756/55 65,' n (L7M l/juZZOm,

J. s. s, FULTON CONVEYER FITTING 2 Fild 061.. 31. 1921 3 Sheets-Sheet 2 ,iff/565565 l Patented Jan. 27, 1925.

, STATES 1,524,092 PATENT QFFICE.

JOHN s. s. FULTON, or CHICAGO, ILLINOIS, AssICNoR ro UNITED CoNvnYoia COR- PORATION, or CHICAGO, ILLINOIS, a CORPORATION or ILLINOIS.

CONVEYER FITTING.

Application filed rlictoloer 31, 1921. Serial No. 511,887.

To all wim/my it may concern.:

Be it known that I, JOHN S. S. FULTON, a citizen of the United States, residing at Chicago, in the county of Cook and State of lllinois, have invented certain new and useful Improvements in Conveyer Fittings, of which the :following is a description.

My invention relates to improvements in conveyer fittings, and more particularly it relates to such a pipe fitting used in connection with conveyers for ash or other similar material. One of the objects of my invention is to provide a fitting for such a conveyer in which the entering ash will impact or impinge on a flat surface provided in the fitting and thus eliminate grinding of the interior surface of the fitting by the ash impacting thereon. ,In the conveyer fittings, as heretofore constructed, the backing part of the fitting, that is, the. part receiving the impact of the entering ash or other material thereon due to its change of direction, is generally arcuate in crosssection so that the ash impacting therewith will be spread or directed over said arcuate surface in arcuate paths, while in my improved litting, the ash impacts against a surface perpendicular or at an angle to the direction of travel of the ash and changes its direction of travel, with a minimum of scouring action on the back of the fitting, it being understood that the entering ash is conducted through. the pipe section byv a suction or a jet of steam, air, or the like. Another object of my invention is to provide a sectional pipe fitting for a conveyer as above described in which the wearing part or wear back may be easily renewed without disassembling or removing any other part of the fitting. Another object of my invention is to provide an improved form of packing joint for a fitting as above .described and improved means for drawing and securing the parts together. Among other objects ofV my invention I have sought to providey a device as above described which shall be economical, efficient, convenient, durable, and `satisfactory for use wherever found applicable. Many .other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the disclosure herein given. v Y

To this end my invention consists in the novel construction, arrangement and combination of parts herein shown and described, and more particularly pointed ,out in the claims. l Y

In the drawings, wherein like reference characters indicate like or corresponding parts;

Figure l is a vertical elevation of my ash conveyer system as applied to a series of boiler furnaces, some of the parts being shown in section; y

Figure 2 is an end view of one of my improved conveyer fittings;

Figure 3 is a side elevation oit' the same;

Figure 4 is a sectional view takenisubstantially on Vthe line 4 4 of Figure 3; with the wear or wear back part removed;

Figure 5 is a section taken substantially on the lline 5 5 of Figure 2;

Figure 6 is a section taken substantially on the line 6 6 of Figure 3;

Figure 7 `is an enlarged detailed View of my improved `torm of joint; and

Figure 8 is a sectional view of another form of my conveyer fitting. i

In the drawings, wherein I have illustrated a preferred embodiment of my invention, l and 2 represent ash intake ttings having an intake con'imunicating with a point adjacent to the ash pit of the boilerl furnace and having their discharge'ends in communication with the bore of pipe sev, tions 3 of the conveyer section. The elbows 4 arc arranged at the top and bottom of the riser' pipe of the conveyer system, or other desired points, the entire system emptying into the ash container 5 or the equivalent, wherefrom the ashes may be discharged into any suitable means for removing them. Connected to said elbows 4 are steam or air jets 7, said jets being fed by a main steam or air pipe 6.

Each of the elbow littings 4 comprises a body part 8 and a renewable wear back part 9 adapted to be removably secured thereto. l0 indicates the intake end of the chamber through the fitting, and 1l indicates the discharge end thereof, there being ianges 12 and 13 at the intake and discharge ends of the fitting whereby said fitting may be connected to adjacent pipe sections, as shown in Figure 2. Bolt holes 14 are provided in oneV or both of said end flanges through which tightening bolts may be inserted to` secure the parts to the adjacent pipe fittings. The parts 8 and 9 are preferably made of a special hard metal, the renewable wearback being of a harder material than that of the body part if desired. As it would be extremely dilficult to provide a pipe tap in a hard metal for the entrance of the steam jet nozzle, I have found it highly desirable in many cases to provide a soft iron plug 15, which is set in place in the mold when the conveyer section is cast, sothat it is substantially integrally secured thereto. This feature however is not essential. The nozzle 16 isthreaded into said soft iron plug, said nozzle being adapted to be connected to the steam pipe 7.

As it is very'vital to the successful operation of the conveyerthat the large end of the steam jet nozzle is pointed inward, the threads at the inner and outer ends of the nozzle may be of different pitch, so that the nozzle may be placed in position on the fitting only in the correct manner. I, therefore, generally provide different threads for this purpose; Y

VThe wearback 9 has a flat inner surface 17 opposite the intake 10, said surface in the type of fitting shown lying substantially in a plane perpendicular to the direction of travel of the Vincoming ash, as indicated by the arrows in Figure 5, so that as the ash impinges or impacts on the flat surface 17 it will rebound and change its direction of travel and be carried through the dis charge end 11 by the steamI jet coming through the nozzle 16. Thus on account of the flat impact surface of the wear back the grinding or scouring action of the ash on thewear Aback is reduced to a minimum. It willbe noticed that the flattened part of the wearback is also thickened in cross-section so that the longevity of said part is greatly increased, the remaining portion of said wear back gradually decreasing in crosssection to the discharge end.

The meetingedges 18-19 of the body part `and wear back part respectively, are preferably flanged as at 20-21, and in each of these edges is formed a series, of stepped portions or shoulders, a packing material 22 being adapted to be inserted between saidV opposed edges when the two parts are assembled. I have found a mixture of cement andV asbestos highly satisfactory for such a packing material. As shown in Figure 7, the edge 18 ofthe body part 8 has two shoulders'23and 2 4 lying in planes parallel to and spaced apart transversely Aof the litting,VA there being parallel walls 25, 26, and 27 spaced apart ,and forming the bounding ywalls of each ofsaidfsteps Vor shoulders 23 and 24'.' The wear back 9 has formed in its edge'fl19, 'steps or shoulders 28 and 29 parallel to keach other but of a different Obliquity than the steps 23, 24, and lying in planes spaced lapart transversely of said Wear'back, said *planes being bounded by walls 30 and 31 corresponding to the walls 25 and 26 of the body member 8. When the parts are assembled the walls of the steps 23-28 and 24-29 respectively forni outwardly converging pockets or grooves 32 and 53 respectively, said pockets extending the entire perimeter of the meeting edges 18 and 19, whereby when said parts 8 and 9 are secured together in place the packing is pressed tightly in said grooves and can not be blown out, nor sucked out, as the outer ends of said pockets are smaller in crosssection than the inner ends.

.Near one end of the fitting, the flanges 18 and 19 have aligned lugs and 35 formcdthereon and projecting outwardly therefrom, said lugs having apertures or bores 36 therethrough, the aligned axes of said apertures being perpendicular to the plane of juncture of said parts 8 and 9. Near the other end of the parts S and 9 l have Yprovided outwardly extending apertured lugs 37 and 38, one on each flange 18 and 19frespectively, the aligned axes of said apertures extending obliquely to the plane of juncture of the parts 8 and 9. Through the aligned lugs 37 and 38 arr positioned attaching bolts or screws 4() and through the other aligned lugs are positioned attaching screws or bolts 41, whereby the parts 8 and 9 may be tifrhtly secured together. ln practice, the liolts 41 are first tightened` upand then the bolts 40 arc tightened, `thus moving the parts S and 9 past one another in opposite directions along their line of juncture, and spreading the sealing or packing material firmly into plafe and also tending to move the flange 13 of the part 9 into close engagement with the adjacent lange of the adjacent pipe section.

lVhenever it is desired to inspect the .fitting which is not essential .it is not necessary in the construction illustrated that all the parts be disconnected or disassembled, and whenever it is desired that anew wear back be put in place, the bolts 40 and 41 may be disconnected and the old Wear back 9 removed and a new one applied to the art t5, whereupon the bolts 41 and flange bo ts are lirst partially tightened u and the subsequent tightening up of tie bolts 40 will lll!) move the flange 13 of the wear back into lar to the direction of the movement of the incoming ash, as indicated by the arrow in Figure S. The steam jet is secured to the body part at l and directed through the outlet end 46 of the fitting, the inlet end of said fitting being designated as 47. The meeting flanges of the body part and Wear back are indicated as 48 and 49 respectively, there being aligned lugs 5i) projecting outwardly therefrom and secured together by bolts 5l or by any suitable or equivalent means. The fiat or straight inner face of the wear-back tends to prevent Wear and swirling of the material, and it will be noticed that the point of impact or stopping of the ash of the material is substantially adjacent to the steam jet, thus eliminating wear above the elbow, which is of great importance. `While l have shown a plane degrees and 90 degrees, it Will be obvious that the construction herein set forth may be employed With a 221/2 plane elbow, or with other styles,'including booster fittings and the like. I have not considered it necessary to illustrate all of these styles of fittings as it is believed that the embodiment herein set forth in various styles'of fittings will be obvious to those skilled in the art.

Having thus described my invention it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence l do not Wish to be understood as limiting myself to the exact form, arrangement', construction and combination of parts herein shown and described, or uses mentioned.

That I claim as new and desire to secure by Letters Patent is:

l. A split conveyer of the kind described, comprising a body part and a Wear back part, and means for securing said parts together at their plane of juncture, said means comprising a pair of aligned apertured lugs on the meeting edges of said parts, the axes of the apertures being perpendicular to said plane ot juncture and a second pair of aperturcd aligned meeting lugs on the meeting edges of said parts and spaced from said first named lugs, the axes of the apertures through said last named lugs being oblique to the plane of juncture of the parts, and means through each of said pair of registering lugs for securing said parts together.

2. A split conveyer of the kind described, comprising a body part and a Wear back part, and means for securing said parts together at their plane of juncture, said means comprising a pair of aligned apertured lugs on the meeting edges of said parts, the axes of the apertures being perpendicular to said plane of juncture, and a second pair of apertures aligned meeting lugs on the meeting edges of said parts and spaced from said first named lugs, the axes of the apertures through said last named lugs being oblique to the plane of juncture of the parts, and means through each of said pair of registering lugs for securing said parts together, and means for discharging a jet of impelling fluid substantially parallel With the face of the Wear back and into the passing material.

3. A split conveyer fitting of the kind described comprising a body part and a Wear part, and means for securing said parts together at their plane of uncture, said means comprising a pair of apertured aligned lugs on each of said parts near one end thereof, the axes f said aligned apertures of the lugs being perpendicular to said plane of juncture, and another pair of lugs on said members at their meeting edges near the opposite end thereof, the axes of the aligned apertures of said last mentioned pair of lugs being oblique to said plane of juncture of the parts, and means adapted to be positioned through each pair of registering lugs to secure said parts together.

ln testimony whereof, I have hereunto signed my name in the presence of two subscribing Witnesses.

JoHN s. s. rULToN. llVitnesses Ro-Y W. HILL, RUTH M. EPHRAIM.

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