US2665798A - Trough - Google Patents

Description

L. D. HAG ENBOOK Jan. 12, 1954 TROUGH 3 Sheets-Sheet 1 Filed Dec. 5, 1950 jirvenzor .ZqyflffayenZook .izforney in I is E t)! ll Jan. 12, 1954 L. D. HAGENBOOK TROUGH 3 Sheets-Sheet 2 Filed Dec. 5, 1950 fnvenzor jqyfl jzigyenook 9W S SW NW m m RN Q Jan. 12, 1954 H HAGENBOQK THOUGH 3 Sheets-Sheet 3 Filed Dec. 5, 1950 In were Zoi" L y flffayenaO Patented Jan. 12, 1954 UNITED STATES PATENT OFFICE TRoUGH" my D. Hagenbook; Chicago, 111., assignor' to Goodman Manufacturing Company, Chicago, 111., a corporation of'Illino'is Application December 5, 1950; Serial No. 199,327"

"caused by wide variations temperatures of the material-being carried-in the-trough from" tim to time:

A further object is to provide an improved trough"structureforminimizing the effect of expansion and contraction upon the main loadcarryi'ng elements of" the trough under varying temperature conditions.

Other objects and advantages of theinvention will appear from timetb-time as the following de scription proceeds.

The inventionmay best be understood by reference'to the accompanying drawings; inwhich:

Figure 1 is a side view of a shaker conveyor pan line-employing one embodiment of the preseht invention;

Figure 2 is a plan-view-of Figure 1; t Figure 3" is a fragmentary enlarged View of Figure 1, partly in longitudinal section;

Figure 4*i's-a cross-sectional View of Figure-1 taken along lined-4 I M Figure '5" is'a' fragmentary plan View of Figure3 showing one means for sealing the jointsbetween adj oining section's;

Figure 6 is an enlarged cross secticnal view of Figure?) taken alongline 9-5;

Figure 7= is an enlarged. fragmentary perspective view ofone formofthe sealingmember;

Figure 8' is a perspective'view" of one trough section; v I

Figure Qis a cross=sectional view of Figure 3 taken along line 9 -9;

Figure 10 is a fragmentary longitudinal sec tional View of'Figu're" 9takenialong line Ni -HY;

Figure 11 is a section" of Figure 10 taken along linel|- II. I H Referring now to details ofthe embodiment of theinvention illustratedfin thedrawings; Figure 1 is a view in side elevation of a portion of 'a con veyor trough line, indicated generally at iii; and

with a shaker drivemechani'sm, inclicatedgener ally at H, -disposed'henath the trough positionltol'impart a shaking or vibratory feeding movement thereto, The general arrangeiiientof the trough and it'sshakih'g mechanism may he the same as has heretofore been viidlyusedin transporting loo'se materials with af so'fl-called" haker motion, Wh'erein'tiie shakermeehamsm' W 2 is connec'ted to the trough line in ash? pitmans l2",- |-2- so as to impart a reciprocal movement to the latter of variable acceleration in opposite (iirections, thereby causing the materialon; the" trough to be moved in one directiontherealon-g.

The trough line #0 consists essentiallyof a pair of laterally spaced side frame members 15; It

which extend the full length of the trough line and comprise a substantially rigid structural framefor the trough, and a plurality of indi vidual pan sections it; 6 which are mounted on and connected to the'side frame members I5 in such a manner as to permit eridwise expansion and contraction of said pa1isections-indepe11d ently of each other and of the side frame members.

In the form shown herein, the side frame meni bers l5, l5 consist ofi angle bars with upper" legs l1 and lower legs l8 disposed substantially at" right angles to each other'but with the two legs tending the full length of the conveyor 01'' they may be madeup of a pluralit'yo'f sectional lengths spliced or otherwise secured together at abutting ends in any suitable manner to provide ineffect continuous substantially rigid load-carrying ele'-- ments=extending the full length ofthe pan lirie along opposite sides thereof.

The side frame members are tied together transversely at suitably spaced intervals by tie bars 20, 2B1 Afsshov'vn herein, these tiebars' are fastened tothe' ends of the lower legs [8, [3 of said side frame members as by Welding. At tachjed to the under I faces "of each; of the tie"b'ars 2a: is longitudinally disposed C a nel; atter tr e full length of the pan line. Figure 1; s'oirie of the standards 25" may be mounted on extended frariiesflfi' and"zTconnected at o posite ends to the" shaker mechanism ll," Whileother standards 25 may be mounted eibii-- hon'zontan disposed haseniemhe r's 2t;

connection. In the form shown herein, the con-- necting means consists of a plurality of bolts 35, herein three in number, passing outwardly through the upper legs I? of the side frame members l5 and fitting snugly through bolt holes 36,

36 formed along the flanges 32, 32 of said pan section [6 adjacent the end of the latter that is fastened directly to the side frame members 15. The bolts 35 have heads 3'! engaging the outer faces of the proximate flanges 32 of the lower pan section l6. The heads 37 also have superimposed retaining plates MJ, 43 integral therewith for purposes to be hereinafter described. Nuts 38, threaded on the inner ends of the bolts 35, hold the proximate flanges 32 of the lower pan section I6 firmly against the upper faces of the legs ll of the side frame member i5, as shown in Figures 9 and 11.

The opposite or right-hand end of the pan section shown in Figure 8 is mounted in the pan line 10 so that it nests in longitudinally sliding relation within and above the proximate end of the next adjacent pan section it. For instance, by reference to Figure 3, it will be seen that the pan section l6, shown toward the left side of this figure, has its right end nested in and above the left end of the next or right-hand pan section 16 shown toward the right end of this figure. Holes 39, 39 are provided in the flanges 32 of the left pan considerably larger than the holes 33, 36 in the right-hand pan, and, which register with the heads 31 of the bolts 35 which secure the right-hand pan section to the side frame members [5. The holes 39, 39 just mentioned are sufficiently larger than the heads 3! to permit considerable flexibility of longitudinal movement between the lapped portions of the rightand left-hand pan sections. Retaining plates 48, @9, formed integral with the heads 3? and extending laterally above as previously mentioned, are substantially larger in diameter than the enlarged holes 39 of the overlapping pan section, so as to retain the end of the latter pan section against vertical displacement with respect to the side frame members.

It will now be understood that, by reason of the fastening means above described, each of the pan sections i6 is individually anchored at one end to the side frame members but has its opposite end nested in and above the end of the next adjacent pan section, with the fastening means for the next pan section also arranged to hold the relatively free end of the first pan section against vertical displacement in the pan line but permitting limited longitudinal sliding or telescoping adjustment between the lapped portions of the two pans, as may be required during excessive expansion and contraction of the several pan sections.

The lapped joints between adjoining pan sections l6 are preferably supported on the tie bars 20, to strengthen the pan line as a whole at these points.

It will also be observed from Figures 5, 6, '7 and 8 that each of the pan sections [6 is provided near its normally anchored end with a pair of transverse ridges 45, 45 formed transversely of the bottom plate 39 thereof, between which ridges is disposed a resilient or deformable sealing strip 46, herein consisting of a coil of wire screen, as shown in Figure 7. Other heat-resistant, de-' formable sealing material such as asbestos rope may be used for the sealing strip. Said sealing strip extends slightly above the level of the trans-- verse ridges 45, 45 in position to be engaged by the under face of the bottom plate 30 of the adjacent overlapping pan section, in all permissible positions of expansion and contraction of the two lapped ends of the adjacent pans. It will be observed that, when assembled, the side walls 31 of each pan overlapping portion are seated in material-sealing relationship upon the corresponding side walls of the adjoining, underlapping, pan portion. The only portions needing a sealing strip therefore, are the bottom, lapping portions of the pans.

The sealing strip 46 serves to minimize the escape of fine material which otherwise might find its way between the lapped joints of the pan sections.

Any suitable means may be provided for connecting the pitmans i2 of the shaker mechanism H to the trough line H). In the form shown in Figure 4, the ends 59 of the pitmans I2 are connected by ball-and-socket joints 5| at opposite sides of the pan line to a crosstree 52 which, in

turn, is pivotally mounted on an upright stud 53 forming part of an elongated drive bracket 54. Said drive bracket 54 may be longitudinally extended to connect With the side frame members 15 for a considerable length of the pan line; as for instance in Figure 1, said bracket extends about the length of two pan sections i6.

Although the novel form of trough structure has been described in connection with a shaker conveyor, for which it is particularly adapted, it will be understood that the same structure can also be employed in inclined chutes and the like.

The use and operation of the device may now be described as follows:

The pan line 19 is set up for reciprocal movement on the supporting rollers 22 and with the shaker mechanism i i operatively connected with the side frame members [5 of the trough line. The pan sections Hi, 16 are connected to the continuous side frame members IS with one end of each individual pan section positively secured or anchored to the side frame members, and with the opposite ends of each pan section having a lapped joint with the next section, so as to permit limited longitudinal sliding or telescoping movement between adjacent pan sections. The shaker motion is preferably imparted to the pan line in the direction to move the material along the pan line from left to right, so that the material will ride over the lapped joints without obstruction.

The pan sections are preferably made of relawithout causing any buckling or other distortion due to wide variations in temperature which occur from time to time and at different points along the pan line. Such temperature variations will usually affect the pan sections [6, is more than the side frame members I5, since said pan sections are made of lighter material, and also are brought into more direct contact with the material being transported along the conveyor. The pan sections are so arranged that they readily accommodate themselves to such expansion or contraction at various localized points along the pan line as may be required.

The pan sections are also connected along their flanged upper edges to the side frame members so that much of the heat efiective directly on the pan sections will tend to be dissipated before it reaches the side frame members by conduction. As a result, the side frame members are not ordinarily subjected to the same extremes of heat as the individual pan sections.

Although I have shown and described certain embodiments of my invention, it will beunderstood that Ido not wish to be limited to the exact construction shown and described, but that various changes and modifications may be made without department from the spirit and scope of the invention as defined in the appended claims.

I claim:

1. In a trough structure, an elongated substantially rigid supporting frame, and a plurality of pan sections mounted in load-carrying sequence along said frame, means for positively anchoring a relatively limited area of each of said pan sections in substantially rigid relation to said frame, with the remaining area of such pan section free for longitudinal expansion or contraction relative to said frame, and with a relatively free end of such pan section in lapped relation to an adjoining pan section.

2. A trough structure in accordance with claim 1, wherein successive pan sections are each anchored adjacent one end to the frame and with the opposite relatively free end in overlapping relation with the anchored end of the next pan section.

3. A trough structure in accordance with claim 1, wherein each pan section has generally upright side walls and the frame includes two laterally spaced side frame members disposed along opposite sides of a plurality of said pan sections and having the latter anchored thereto along the upper edges of their side walls.

4.. A trough structure in accordance with claim 3, wherein the frame also includes a plurality of longitudinally disposed cross members connecting said side frame members in supporting relation below the lapped joints between adjoining pan sections.

5. A trough structure in accordance with claim 3, wherein the side walls of the trough sections each have outwardly extending flanges along their upper edges which are anchored to the side frame members near one end of such trough section and are secured adjacent their opposite ends for limited longitudinal slidable movement rela tive to similar flanges on the adjoining pan section and to said side frame members.

LOY D. HAGENBOOK.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,268,638 Bigelow Jan. 6, 1942 2,299,005 Bigelow Oct. 13, 1942 2,333,338 Rapp Nov. 2, 1943 2,523,293 Hagenbook Sept. 26, 1950

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