US2370555A - Uptake construction - Google Patents

Description

Feb. 1945- E. JHMABRITO 2,370,555

UPTAKE CONSTRUCTION I Filed Dec. 26, 1942 2 Sheets-Sheet 1 Fig. .5.

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Feb. 27, 1945. E. J. MABRlTO 2,370,555

UPTAKE CONSTRUCTION Filed Dec. 26, 1942 2 Sheets-Sheet 2 INVENTOR. fbmm J. Mob/"#0.

Patented Feb. 27, 1945 UNITED. STATES PAT ENT OFFICE t -v 2, i i UPTAKE oons'rnucrron- 7 me J. Mabi-ito, Richmond; one- 1 Application December 26, 1942, Serial Nb. 470,296 'zciaims. (.01. ass-210) The invention relates to: the uptake or manie fold structure such as used in conveying the products of combustion from the boilers of a ship to the smoke stack. Usually one uptake is utilized to a pair of boilers, and in the conventional type of uptake, there are three contiguous sections, to-wit: a pair of transversely spaced lower sections which are arranged for attachment to the boilers, a single upper section which is designed for attachment to stack,'and a pair of intermediate sections which extend from the be economically produced, assembled and fitted together in a manner insuringeifective jointure of the parts and sections and without requiring highly skilled labor.

Another object of the invention is to provide an uptake construction in which all of the sections, including the intermediate sections, will be lower sections and lead into 'the'uppensection. All of the sections are substantially quadrangular in transverse cross-sections, the top section being square and having vertical sides, the bottom sections rectangular with long and narrow vertical sides, while the intermediatesecti-ons conform at one end with the lower sections, but converge and combine to conform at the other end with the upper section. The sections are formed of metal sheets arranged to be welded together at the edges so that the joints'will be at the corners. The lower sections are required to be in appre ciable ofiset relation to the front and sides of the upper section, and-principally by reason of this fact, difiiculty has previously been encountered in assembling and securingtogetherthe parts of the intermediate sections and securing same to the other sections without buckling or setting up severe strains inthe sheets comprising the'sections. In previousv constructions the sheets of the intermediate sections and the portions of the other sections to which such :sheets'were attached, were cut or formedin such manner that the corners of the sections 'changedfrom an obtuse angle at one end-to an acute angle at the other. Usually the corners of the sections aresupported by and seamed to angle iron bars, and in view of the variation in the angles, as aforesaid, the bars were bent to provide such an angle as will favor the corner joint nearest the lower section. Since it is not expedient to provide the angle iron bars with graduated angles or to wastefully' trim the sheet stock for form fitting, it will be readily evi dent that the joints at the corners and between in the form of truerectangles in transverse section, whereby the corners or joints maybe supported by stock right-angle iron bars and all of the sheets constituting the walls. of the sections may be laid and secured in position without any twisting or buckling.

The invention possesses other objeicts' and features of advantage, some of which with the foregoing, will be set forth in the following descrip the sections will, for the most part, be ill-fitting and difilcult' to weld together. Theedges will panyingpait of the specification. It is' to be understood, however, that variations .in the showing made by the said drawings and description may be adopted within the scope of'the invention as set forth in the claims.

Referring to said drawingsz' Figurel is an elevational view of the uptake as seen from the front.

' Figure 2 is an elevational'view uptake. I v I Fi'gureB is'a viewcorrespo'nding toFigure 1, but showing the uptake from the aft.

' Figured-15a top plan view of the uptake as shown in Figurel. Figure 5 is a vertical sectional view of the uptake structure. Figure 6 is a fragmentary view showing the same elevation as Figure l, but of a slightly modified' construction.

of a side of the Figures 7 and 8 are perspective views of the uptake, looking from the front end rear thereof, the embodiment illustrated being that shown in Figures lft'o 5. r

As illustrated in Figures 1 to 5, and 7 and 8, ofthe' drawings, the uptake follows in general the typicalarrangement wherein separate ducts are provided for'conve'ying the products or combustion from the combustion chambers of the boilers to a-header which connects with the smoke stack. In such arrangement, the uptake is formed of what may be considered three sections, 'to-wit: a lower section I which is arranged for positioning immediately over the combustion chambers, an upper'section 9 which is arranged to be positioned immediately under and operatively connected with the base of the smoke stack, and an intermediate section 8 interposed between and connecting the upper and lower sections 1 and 9. Further, in accordance with the conventional practice, the sections are all made quadrangular in transverse section, the walls of the sections being formed of metal sheets, joined at their side edges to form the corners of the sections. Both the upper and lower sections or boxes, as they are frequently termed, are made rectangular in cross-section, the upper section being square, whilethe lower sectionsare each formed with two of the sides considerably longer than the others. All sides of both sections 1 and 9 are vertical and with the corresponding sides parallel. The sections 1 are positioned at opposite sides of section 9 but in a lower plane, and in addition are ofiset rearwardly of the section 9 and with the longer transverse dimension of direction of the uptake.

The cross-sectional area of section 9 is less than twice the corresponding areas of sections I, and the intermediate sections 8 are made to con form with the bottom of the upper section 9. A division plate H] is provided in the section 9 to keep the ducts separate. In changing from'the lower to the upper form, the sections 8 are made to retain the width of the lower sections, but the fore and aft sidesofthe sections 8 are made to convergeupwardly. These characteristic features of the typical uptake have made the probutilize standard angle .iron bars for supporting the corners of the intermediate sections as well as the corners of the other sections. tion of the intermediate sections in the form stated obviously requires a type of jointure between, and a form of, the contiguous portions of the adjoining sections, entirely different from that employed in the old methods of connecting the sections. The change in the cross-sectional form of the intermediate sections and the change in the form of the contiguous portions of the different sections to be joined, constitutes a very important part of my invention.

Referring now more particularly to the construction of the uptake, as shown in the drawings, it will be seen that the intermediate sections 8 are provided with parallel sloping inner and outer side walls l6 and respectively, arranged to extend upwardly and inwardly from the corresponding side walls l8 and |9 of the lower sections 1. Included also as part of the sections 8 are the front and rear side walls 2| and 22 which extend between the corresponding walls 23 and 24 of the bottom sections and 26 and 21 of the upper section. The walls 2| and 22 besides slop ing inwardly and upwardly in conformity with the walls 18 and IT, as shown in Figure 1, and also upwardly and forwardly, as shown in Figure 2, converge toward one another as they extend from the lower to the upper section, as indicated in Figures 2 and 4. Y

The junctures of the .outer side walls I! and I9, and the inner side walls Hi and I8, are along This utilizahorizontal lines 28 and 29 respectively, as shown in Figures 2' and 5, the lines 28 being higher than the lines 29. Since the walls l6 and I! of intermediate sections 8 are parallel, and the walls 2| and 22 thereof are in angular relation to the walls 23 and 24 of lower section I, it will be evident that the juncture of these adjoining walls cannot be along straight lines intersecting the lines 28 and 29 unless, as is shown in the modified construction illustrated in Figure 6, one of the contiguous portions of adjacent walls is bent out of its normal plane and changed to that of the other wall. Where, asin the preferred embodiment, it is desired to avoid such bending and keep thewalls 2| and 22 flat, the meeting edges or lines 3| and 32 between walls 2| and 23 and walls 22 and 24 are arranged, as shown in Figure the sections I extending in the fore and aft,

1, to be at an angle to lines intersecting lines 28 and 29 In view of the fact that the lower extremity of the side edges of the walls l6 are designed to meet the upper extremity of the side edges of wall l8, it will be seen that in order to provide for the desired meeting of the adjoining edges of the walls 2| and 23 and of the walls 22 and 24, the lines 3| and 32 will be at a greater angle to the horizontal than would the lines described as intersecting the junctures of the inner and outer side Walls of the intermediate and lower sections. As the angular relationbetween walls 2| and 23 isthus made less than the portion 33 of the forward edge of walls I] between the lines 28 and 3| is extended for wardly to meet the wall 23, and correspondingly the equivalent portion 34 of the rear edge of the walls I! is cut or moved forwardly to meet the wall 24. It will thus be seen that while the side edges of the inner walls l6 continue in a straight line down to wall |8,the side edges of the wall |1 change to form angular parallel edge portions at the lower end thereof.

Both intermediate sections 8 are designed to lead into the bottom of section 9, and as will be clear from Figure 2, the outer walls H of sections 8 meet the corresponding walls 36 of section 9 in straight horizontal lines 31. Since the inner walls I6 are parallel to the outer walls ll, the former will likewise meet along a horizontal line 38 parallel to lines 31, the line 38 however, being at a lower level than line 31 by reason of the angular relation of the walls It and the distance between such, walls and the walls While the walls I6 and I! thus join together or to the walls of section 9. along horizontal lines, the walls 2| and 22 in view of their right angular relationship to walls l6 and I1, can meet the plane of the front" and rear walls of section 9 along a line inclined to the horizontal. In view of this and the fact thatthe walls I6 join at a lower level than the juncture of walls I! and 36, the walls 26 and 21 are, as shown in Figures 1 and 3, provided with planar extensions 4|) and 4| respectively, which depend sufficiently to reach the juncture of walls l6 and cover by means of tongues-42 the area between the lines 31 andthe portion 43 of the side edges of walls I6 between such lines and said juncture. It will be understood that both the extensions 48 and 4|,includingthe tongues 42, are coplanar with the respective walls 26 and 21 with which they are associated, and that except for the portions 43 the side edges of the walls l6 are retained straight throughout their length. In this manner a very simplified but effective construction for connection of such parts is vafiorded. As a modificationof the structure just described, the

tongue portions may be: readily formed" as integral parts. of walls 2| and 22,'as shown in Figure 6, instead of I parts of the walls. 36- of the upper section.- Of course,'in. this modified arrangement, the tongue portions indicated in Figure 6 by the numerals '42" are. bent. out of the normal planeof' the. integrally associated walls, and made so as to conform with the. plane of walls 26 when the walls. and 22 are in position. It will also be noted. thatin the embodi-' ment. illustrated in Figure 6, the portions of the fore and aft sidesof' the uptake between the line 31" (located in positionsimilar to line 31; or 32 of the. first embodiment) and the .line connecting the edges of lines'28 and 29, are also formed as integral parts. of thewalls 2i and 22 and bent so as to lie coplanar withthe sides 23 and 24 when in position.

In most of the constructions of the type oiuptake as involved'herein, the wall structure is arranged to be reenforced by means of angle iron bars such as here indicated by the referencetogether on initial assembly and readilytack welded or otherwise. secured, and, at the same time since theedges of the adjoining walls maybe readily held in desired close relation, the welding of the joints between the adjoining walls'can. be effectively accomplished in an economical manner.

As may be perceived, by comparing Figurel and 3, not only are the walls comprising the sides of the uptakeof corresponding form, but

the walls on the fore and aftsides of the uptake are for the most part identical in outline. This feature makespossible the manufacture of the parts at a relatively low cost, and in view of the many other economies afforded by the construction, hereinbefore pointed out, the uptake of my invention is not only much stronger than the constructions heretofore used, but a very appreciable reduction in cost is permitted.

I claim:

1. In an uptake construction, a pair of transversely-spaced lower sections and an upper section spaced vertically from and horizontally in advance of said lower sections, said sections'being each rectangular in horizontal cross-section and having corresponding side and fore and aft walls vertical and parallel, a pair of intermediate sections interposed between and connecting each of said lower sections to the upper secand with its walls joined to corresponding walls zontal cross-section and having corresponding side and? fore and aft walls vertical and parallel} a pair "of intermediate sections interposed between and connecting each'of said lower sections to the upper section and being rectangular in transverse section and with its walls joined to corresponding walls of the other. sections, the contiguous fore and: aft walls of adjoining sections being angularly related and the? intersection of' 'the fore and aft walls of adjoining sections defining a line.,of one side of a triangle-in which one of the sides thereof" intersects. the junctures ot the opposite side walls of adjoining sections and in which'another of the sides is.

defined by the outer of the side walls of the intermediate section.

3. In an uptake construction; a pair of transversely-spaced lower sections and anupper section spaced vertically from and horizontally in advance of said lower sections, said sections be.- ing eachrectangular in horizontal cross-sec tion and having corresponding side and; fore and aft walls vertical and parallel, a} pair. of inter-. mediate sections interposed between and. C011"! necting each of said lower sections. to. the upper section and being-rectangular in transverse section: and with its wallstjoined to correspondingwalls of the other sections, the contiguous fore and aft walls: of adjoining sectionsbeing angu larly-rel'ated and the intersection of the fore and aft walls of adjoiningsections defining a. line. of one side of a triangle. in. which one of the sides thereof intersects the junctures of the. opposite side walls. of "adjoining, sections andin which another of the sides is defined by one. of said angular related portions.

4. In an uptake construction, a pair of trans-. versely-spaced lower sections-with a vertical axis and an upper section positioned mediately and forwardly of and above the lower sections and having a corresponding axis, the lower sections being correspondingly positioned and rectangular in horizontal cross-section and havingadjacent. fore and aft walls shorter than the side walls, the upper section being rectangular in cross-section with its fore and aft walls wider than and parallel to the corresponding walls of r the lower sections and with its side walls narof the other sections, the wall'sof theintermerower than the side walls of the lower sections, a pair of intermediate sections interposed between and connecting said upper to each of 'said lower sections, and being rectangular in transverse cross-section and with its walls joined to the corresponding walls of the other sections, the outor side walls of the intermediate sections meet-' ing the corresponding walls of the other sections along parallel horizontal lines and the inner side walls of the intermediate sections substantially meeting atthe top and joining with the corresponding walls of the lower sections along horizontal parallel lines, the fore and aft walls of adjoining sections being angularly related and the intersection of the angularly related planes of the fore and aftw'alls of adjoining sections defining a line of one side-of a triangle in which one of the sides thereof intersects the junctures of the side walls of adjoining sections and in which another of the sides is defined by a side wall of the intermediate sections.

5. In an uptake construction, a pair oi transs. versely-spaced lower sections and an upper se tion positioned mediatelyand forwardly- 6f and above the lower sections, the lower secti f correspondingly positioned and rectang' horizontal cross-section and haying fore anda'it walls shorter than the side walls, the upper sec"- tion being rectangular in cross-section with the fore and aft wallswider than and parallel to the correspondingwalls of the lower sections and with its side walls narrower than the side walls of the lower sections, each'of said sections having its longitudinal axes extending vertically, a pair of intermediate sections interposed between and connecting said upper to each of said lower sections, and being rectangular in transverse cross-section and with its walls joined to the corresponding walls of theother sections, the outer side, walls of the intermediate sections meeting the corresponding walls of the other sections along parallel horizontal lines and the inner side walls of the intermediate sections substantially meeting at the top and joining with the corresponding walls of the lower sections along horizontal parallel lines, the side walls of the intermediate sections having their forward and rear edges provided with angular related 'portions corresponding with the planes of the fore and aft sides of the adjoining sections, the con-'- tiguous fore and aft walls of adjoining sections being angularly related and the intersection of the fore and aft walls of adjoining sections defining a line of one side of a triangle in which one of the sides thereof intersects the junctures of the opposite side walls of adjoining sections and in which another of the sides is defined by one of said angular related portions.

6. In an uptake construction, a pair of transversely-spaced lower sections and an upper section positioned mediately and forwardly of and above the lower sections, the lower sections being correspondingly positioned and rectangular in horizontal cross-section and having fore and aft walls shorter than the side walls, the upper section being rectangular in cross-section with the fore and aft walls wider than and parallel to the corresponding walls of the lower sections and with its side walls narrower than the side walls of the lower sections, a pair of intermediate sections interposed between and connecting said upper to each of said lower sections, and being rectangular in transverse cross-section and-with its walls joined to the corresponding walls of the other sections, the outer side walls of the intermediate sections meeting the corresponding wall of the other'sections along parallel horizontal lines and the inner side walls of the intermediate sections substantially meeting at the top and joining with the corresponding walls of the lower sections along horizontal parallel lines, the fore and aft walls of each of the upper and lower sections having extensions with angular related edges at least one which is at the juncture with the intermediate sections.

7. In an uptake construction, a pair of transversely-spaced lower sections and an upper sec tion positioned mediately and forwardly of and above the lower sections, the lower sections being correspondingly positioned and rectangular in horizontal cross-section and having fore and aft'walls shorter than the side walls, the upper section being rectangular in cross-section with the fore and aft 'walls wider than and parallel to the corresponding walls of the lower sections and with its side Walls narrower than the side walls of the lower sections, a pair of intermediate sections interposed between and connecting said upperto each of said lower sections, and being rectangular in transverse cross-section and with its walls joinedv to the corresponding walls of the other sections, the outer side walls of the inter mediate sections meeting the corresponding walls of'the other sections along parallel horizontal lines and the inner side Walls of the intermediate sections substantially meeting at the top and joining with the corresponding walls of the lower sections along horizontal parallel lines, the fore and aft walls of the intermediate sections having at least at one of the ends thereof a triangularshaped integral extension bent out of the normal plane of the wall and conforming to the plane of the wall of the adjoining section.

EDWARD J. MABRI'TO.

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