US1783003A - Storage bin - Google Patents

Description

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Patented Nov. 25, 1930 E STATES PATENT owes" ARTHURP. SKAERQQF UFFALO, NEWYORK; hss-ienon To RIC 2. MUN'IZ, or

BUFFAIJO, NEW YORK QSTDORJAGEIIBIN Application filed April 15, This invention relates to a storagetrestle which. is. more particularly designed for shifting coal from railway cars to trucks or wagons,but the same is equally serviceable J for transferringother loose material of like character from'railway cars to transporting vehicles. a s i y In thehandlingof coal it is essential to save the same from degradation by reduction in size and generation of screening as much aspossible,;and:fo-r this reason the coal should drop a minimum distance when discharged into the bins from railway cars running over the top of the same. s

Inasmuch asthe cost of a trestle for carrying rail-ways is considerable and increases very rapidly as the height increases and also clueto the'longer approach which isnecessary in proportion to the increased height, it is desirable to keep the storagebins as low as possible, toprovide large capacity, and permit trucks to pass under, and along the. side for loading purposes and also enable means to be employed whereby the coal is dito screen the material duringsuch transfer.

It is, therefore, the object of this invention to provide a railway trestle for storing coal andthe like which is comparatively low and economical in cost ofconstruction, which has agreater'bincapacity for the amount expended in construction, and which provides adequate clearance for the trucks to beloaded and theusual equipment employed for transferring. the coal from the bin to the trucks. and screening the same in transit.

In the accompanying drawings -Figure1 is a fragmentary verticallongitudinal section of a. storage trestle for coal and the like embodying'one form of my in-f of the vention. 7 v

Figure 2 is a vertical cross section same taken on line 22 Fig. 1.

Figure 3 is a fragmentary side elevation of another form of storage trestle containing my improvements. a

Figure 4 is a vertical transversesection of the same taken on line 4- Fig. 3.

tionsshowing otherlforms of my invention.

,paratively high; by driving the same along rected from the bin outlets to the trucks and anddapproved 1113111161350 as to resist the 1 strains to-which the concrete is subjected and 1 thereby strengthen the same. H a The supports 12 may be of any suitable 1929. Serial No. 355,046. b

v In the followingdescription similar charactersof reference indicate like parts the several figures of the drawings.

I In its general organization a this trestle comprises a plurality of elevated bins or pockets 1.0 whichare open at the top soas to permit of dumping coal; or likematerialinto the upper ends of these bins, from railway carswhich run upon roadways or railway I tracks llarranged lengthwise over the bins, e0 andfa plurality of supports 12 mounted on the ground and carryingth e bins on the underside sons to permit of jdelivery trucksor Wagons 13 .to be either driven betweenlthe i supports 12 andu'nder the bins for loading the trucks, which are comparatively low, as shown in Figiql and also permitting the loading of larger trucks l t which are comthe sideFof the bins, as shown in Fig; 5, these methods of loading .beinggenerally referred to drive under-loading? and-side load 1ng., 5 I w Each. of the bins or pockets, as showmfor example, in Figs. 1 and 2, comprises two transverse walls 15 which serveas bents upon the upper edges of which the railway tracks '11 aremounted,two longitudinal side walls 16. connecting the corresponding edges of the transverse walls, and a bottom 17 which connects the lower ends of thetransverse and side walls and is curved upwardly on a transverse axis so .as to form an archwhich is depressed at "its opposite transverseends, and elevated centrally between these transverse ends. These transverse and. side wallsand the bottom of the bin are made of concrete which isreinforced by [metal bars 18 em bedded within the concrete inany suitable form, but inthe preferred construction the support for the underside of each transverse wall15 consists of two columns of concrete whichare spaced apart transversely so as i i s tosupportthis wall and the bin of whichit Figures 5 and 6 are vertical transverse secif orms a" part adjacent to opposite ends thereof. A

In actual practice a plurality of such bins are arranged to form a longitudinal row, and each of the transverse walls 15 serves as a partition between two adjacent bins in the usual and well-known manner of constructing trestles of this character.

In the preferred construction two railways are arranged side by side lengthwise over the series of bins and the bottom of each bin or hopper is provided with means for discharging the contents thereof at different points so as to permit of loading one or more trucks or wagons under the drive under system and also one or more trucks or wagons under the side loading system.

As shown in Figs. 1 and 2 the arch shaped bottom of each bin is provided at each of its depressed ends with two outlets 19 which are arranged transversely side by side, and each of these outlets being preferably arranged vertically in line with one of the railroad tracks 11 above the bin, as shown in Fig. 2.

In order to avoid making the trestle unduly high the arch forming the bottom 17 is made comparatively flat and the same is stiffened by means of reinforced longitudinal ribs or webs 20 extending downwardly at opposite longitudinal edges thereof, thereby forming a concave space on the under side of each bottom or floor of a bin which floor also forms the roof of the truck driveway extending transversely underneath each bin.

Inasmuch as a comparatively flat formation of the arch shaped bottom or floorof the bin would prevent emptying the bin completely, and instead permit some of the material to remain lying upon the top of the floor between the outlet openings at the depressed ends of the arched floor, means are provided which will prevent the coal or other material from lodging upon the central elevated part of the floor and compel the same to flow toward said outlets when the latter are opened. These means preferably consist of an upwardly projecting longitudinal defiector 21 mounted upon the upper side of the elevated central part of the fioor and preferably constructed of concrete of upwardly tapering form so as to produce two longitudinal inclines 22 which slope lengthwise in opposite directions from the highest central part of this deflector toward the outlets 19 in the depressed ends of the floor, as shown in Fig. 1.

This deflector 21 is preferably formed on the upper side of the floor after the latter has been finished, and in order to form a good joint between opposite transverse edges of this deflector 21 and the floor of the respective bin the latter is provided on opposite sides of the elevated central part with transverse shoulders 23 which face each other and which are engaged by the opposite transverse edges of the deflector, as shown in Fig. 1, thereby holding the latter against lengthwise movement on the floor of the bin.

This deflector and the floor are united so that they practically form an integral structure by means of cement applied to the opposing surfaces thereof.

In order to prevent the coal or other material from lodging upon the upper side of the floor between the adjacent pair of outlets 19 at the same depressed end of the floor, a central transverse deflector 24, which is also made of concrete and of upwardly tapering form, is mounted on the respective part of the floor so as to produce two oppositely inclined surfaces 25 which slope from the high central part of this deflector transversely in opposite directions toward the outlets 19, as shown in Fig. 2.

Similar deflectors 26 made of concrete are arranged upon the opposite side ends of the bin floor so that each of these deflectors is arranged between one of the side walls 16 of the bin and the adjacent outlet 19, and is provided with an inclined upper surface 17 which slopes from the respective side wall to the adjacent outlet and thereby causes any coal or other material in the respective part of thebin to be directed toward this outlet when the latter is opened.

It will be apparent from the foregoing that by the addition of these deflectors any material within the bin will be directed to-"es ward the outlets in the floor whenthe latter are opened and thereby permit of completely emptying the bin when this is required.

Any suitable means may be provided for A controlling the outlets of the bin but it is pref 1 erable to employ for this purpose a curved gate 28 in this outlet which is pivotally mounted in the side walls thereof so as to be capable of being turned about a horizontal transverse axis by means of a handle 29 con nected with this gate. As shown at the right hand side of Fig. 1 the gate 28 is turned into its open position so as to permit the flow of coal or other material through the respective outlet from the bin, while the gate 28 of the 1 outlet on the left hand side of this bin is closed and therefore cuts off the escape of this material.

When delivering coal from the bins into trucks or wagons it is the usual practice to separate the dust or fine particles from the coal before delivering it into the trucks. In the present case similar means are provided which preferably comprise means for guiding the coal from the outlet to the truck and com- 1110 prise an upper screen section 30 which is pivoted at its upper end to the outlet 19 of the bin, and a lower chute section 31 which is pivoted at its upper end to the lower end of the screen section.

In the unfolded or operative position of these guiding means thescreen section 30 is lowered so as to be inclined from the outlet 19 over the top of the boX or receptacle of the truck or wagon 13, and the chute 31 inclines laterally in the opposite directionfrom the 7 lower end of the screen toward the outer side of the truck.

may beprovided for this *purpose.

l Vhenthese guiding and screening devices are notin use, the same are folded upwardly into the space formed by the concave-under side of the floor, as shown at the left hand a side of Fig. 1, thereby leaving the transverse driveway under the bin clear for the entrance and exit of the drive under wagon which is adapted to receive the load of coal.

In order to permit of conveniently moving each of these coal guidlng means upwardly into their inoperative position and downsection 29 andthe chute section 31, while the wardly into their operative position, counterbalancing means are provlded wh1ch preferably consist oftwo liftingcords 32, 83, one of the corresponding ends of which arecon nected with the'lowered ends of the screen opposite ends thereof are 'connectedwith counterbalancing weights 34 and the intermediate parts of these cords pass around guide rollers 35 which are mounted onthe adjacent stationary parts of the trestle, as shown in Fig. 1.

By thus utilizing the cavity or pocket formed on the underside of the upwardly arched floor in which to store the coal guid ing and screening means whenthe sameare.

not in use, the trestle can be made of considerably less height and still provide the neces-.

sary clearance for the entrance and exit of the drive undertruck, and thereby reduce the cost of erecting the trestle without sacribeing any operating facilities or conveniences.

When it is desired to load coal into trucks or wagons which are of such height that they cannot pass transversely under the bottom of the bin, such trucks can be loaded by driving the same lengthwise along one side or the other of the bin and delivering the coal into the same from one end of the bin or the other by means of a chute 36 extending from a side outlet 37 of therespective binlaterallvto the .side loading truck. The side outlet 37 in this case is formed in the side deflector 27, as shown by dotted lines in Figs. 1 and 2, and by full lines in Figs. 3 and gand the flow of materialthrough this-outlet and overv the respective chute is controlled by means of a rocking gate valve 38 whichis constructed and operated substantially like that employed for controlling the outlets 19 at opposite depressed transverseends of the floor of the bin.

By thus providing a plurality of outlets at oppositedepressed ends of the arch shaped floor of the? bin and also the oppositealateral ends. of the bin, it is possible to simultaneously load coal or similarmateri'al into a plurality of individualtrucksyor wagons, thereby pe-rmitting of discharging 1 the. coalfrcm the bin 1- to suit difierent.circumstances.

: .Insteadoflfoimingfthe lateral outletof the" binxin the-inclined surface 27 of thelateral rdefi-ec tor26 whichdirects the coal or other. materialtowardthe end outlets ,19, thesevlateral outletst39 may be formed in the sidewalls Y 16. of: thebina't the foot of outwardly inclined surfaces lOYvvhich areformed on theside defiectorstland slope from the'topof the latter downwardly to the side outlets 39, as shown- ,in; Fig; 5;: The material is; directed from each ofjthese side outletsby, means ofa chute 42 to aftsideloadingl truck l l and the escape of material through these side outlets is con- NJ trolled by a gate valve4i3; 1

If desired, the coal may be delivered from the outlets, [19 at? the {depressed ends of they bottom to the trucks or wagons bymeans of use plainspouts orchutes, as shown at 301 in Figs. 3, 4, 5 and 6.

bin of concrete, asshownin Figs. 2, iand.5, the side walls 44 and the adjacent inwardly inclined deflector45 may be mounted on'fabricated metal brackets 46 which are hung on v r 5.17.90 n'steadof forming the side wallslof the the opposite ends of theftransverse partition walls or bents 47 which carry the overhead railway tracks 11, as shown in Fig. 6.

These brackets can be readily removed at anytime if desired, to change the form 015 the storage trestle or for enlarging thecapacity or adding furthertracks, or for any other purpose. l 1 a From the foregoing :it will be apparent that this trestle forstoringcoal or other ma: terial provides the requisite transfer facility from rails to trucksand also provides sulficient capacity, to meet unusual demands of trucks in case of interruption in the supply ofmaterial to the bins by the rail services This construction also permits of giving adequate truck clearance below the bins so as to permit the trucks to be operated with facility and to accomplish this by making the trestle as a whole, considerably lowerthah has been possible heretofore, thereby reducing the cost ofinstallation accordingly. V It isto be understood that the interior of these'bins may be covered with a wearing surface of concrete or other suitable mate I llO rial so as to avoid undue 'wearof the same. By means of this invention unduly high expense in construction and loss of capacity is avoided and as the main elements of this construe- L 'tion are all made of concrete depreciation of the structure and expense of upkeep are f avoided,inasmuch as repeated cleaning and painting of the structure is not necessary to I z preserve the trestle as is the case when steel or a similar material is used for this purpose.

I claim as my invention A storage bin having transverse walls, longitudinal side walls connecting said transverse walls, and a bottom connecting the lower ends of said walls and including a longitudinal arch connecting at its opposite depressed ends with the lower ends of-the transverse walls, and provided adjacent to its depressed end with outlets for the material stored in the bin, said arch being provided on its upper side on opposite sides of its elevated central part with shoulders which face each other, and a deflector arranged above the central part of said arch and engaging its opposite ends against said shoulders and having opposite inclines which slope toward said outlets.

In testimony whereof I hereby aflix my signature.

ARTHUR P. SKAER.

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