US1733572A - Hopper construction - Google Patents

Description

Oct. 29, 1929. F. B. ALLEN 1 ,733,572

HOPPER CONSTRUCTION Filed Aug. 7, 1924 fir INVENTOR \57 w AT ORNEY matted a. 2a, 1929 UNITED STATES PATENT oFFicsn. ALLEN, or Lownn, immoN TOWNSHIP, moN'roomanY, COUNTY, rnN sYL- VANIA, ASSIGNOB, BY MESNE ASSIGNMENTS, ro 'rnn ALLnN-snnamA aorr courm, or rnmnnnrnm, PENNSYLVANIA, A CORPORATION or rnN sYLvnNn norrna coNszrnucnoNf Application and august 7, 1924. Serial No. 730,611.

This invention relates to hopper construe tion and particularly to agate for a hopper hai'ingsa bottom discharge opening.

ing applications, Serial Nos. 571,404, filed July 28, 1922,,and 683,7 92, filed December 31,

1923 now Patent No. 1,547,284, issued July 28, 1925. In the drawings accompanying and formin a part of this specification.

igure 1 is a vertical section taken along the line 1-1 of Fig.2 of a hopper havin abottom discharge opening an provide with a gate embodying certain features of my present invention.

Figure 2 is a longitudinal vertical section %f the door and frame taken on line 2-2 of i 1. 2o iig. 3 is a top plan view of the door and stationary trough taken upon the line 33 -0fFig.1'. 1

Figure 4 is a vertical sectional view taken on line 44 of Fig. 3, and V Figures 5 and 6 are, respectively, sectional views taken on lines 5-5 and 6-.6 of Fig. 2 on a reduced scale.

, Referring to the drawings, in which I have illustrated one form of gate, 1 designates as so an entirety a'fragmentary portion of a hopper provided with a bottom discharge opening and equipped with a gate consisting of a frame 26 and a door27 connected to the hopper and adapted. to control the discharge 85 of h uid and solid material throu h the hopper. ischar e openin The fraiieas consists of a phate 28 su stantially ectangular in plan viewto correspond with the shape of the hopper and provided with a cntral opening coinciding withthe discharge qpen mg of the ho per. From the inner edges of the plate.28 provide depending flanges 29 of substantially the same de' th. The frame 26 may be connected to the opper by various means but in this instance it is connected thereto by being secured. to side members 30,

and cross members '31 which are connected to theside members 30.

Door 27 consists of a body portion 32 and 59 flanges and associated body parts now to be I v a o-relates to certain improvements or the gate structures disclosed in my copendbeing observed from Fig. 1 that these flang to cooperate with the frame 26, in this instance by engagement with flanges 36 on or connected to the side members 30. A rear end liquid intercepting flange 37 preferably formed integral with the body portion 32 of the door extends upwardly/well above the top of the body portion and has a top sur-.

face which is inclined rearwardly and upwardly to sucha level above the body ortion as will prevent passage of liquid rom the bod of the oor 27 I provide an open topped, straight, liquid carrying trough 38 prefer,-

ably disposed in t 1 e horizontal plane of the door and each pro ided with a rear end wall' 39 having a rearwa rdly and upwardly in} clined top surface, the walls 39, as'herein illustrated, being integral with flange 37; These troughs 38 are located outwardly'of the dependmgflanges 29 on the frame 26, it

cs 29 are in substantial alignment vertica 1y with the upstanding flanges 40 constituting a part of thebod portion 32 of the door 27 For a purpose w ich will presently appear,

the outer walls 41' of the troughs 38 extend an above the top of the bottom portion 32 of the door and above the bottom of the adjacent depending flanges 29 on the frame 26. At the front end of the door is provided aforwardly projecting horizontal liquiddischar e'flange I 42 adapted to discharge liquid there rom into a suitable stationary trough 43.

When the gate is in operation, solid material is retained in the hopper by the dodr 27 'when itis in closed position with; respect on to the bottom opening of the hopper but liquid may pass freely through the hopper opening and be collected and discharged by the door into a drainage. system. The liquid intercepting flange 37 extending along the 95 rear end of the door 27 being sufliciently high to prevent escape of liquid thereover, intercepts liquid flowing to that end of the door and directs it into the troughs 38 ,or back toward the front e'nd of the door. Means are portion'thereoven- On each side 65 end walls 39 of the troughs 38 and may gradually diminish in height toward the front end of the door as shown. Water flowing toward the troughs 38 will be-intercepted by the arrangement of overlapping walls comprising depending flanges 29 on the frame 7 and the outer walls 41 of the troughs 38 on the door and diverted into troughs 38 where it will be collected and conducted to the forinto the stationary trough 43.

It will be observed that the door illustrated is. provided with a fluid directing flange along the rear end of the door to turn all liquid therefrom toward the side or stationary troughs. This flange as well as the inclined rear end wall of the side troughs has a rearwardly and upwardly inclined top surface over which ashes or solid material may be forced by depending parts when the door is moved into closed position. It will be understood that the normal'cleara-nce between the door and depending frame parts, such ,as flange 29, is always 'filled with ashes, some of which may be scraped toward the rear of the door as it closes. Unless some means is provided, such as the inclination of the top surface of the flange 39, these ashes would tend eventually to pack in the space between flanges 37 and 29 and prevent com-, plete closing of the door. j

It has been found that the rear end trough of doors of this general type tended to become filled with ashes scraped from the top of the .door by the depending rear end flange of the frame and that it was diflicult to remove such accumulations of ashes from the trough manually and nearly impossible to do so mechanically. By my present 'construction, however, I completely avoid the [previous difliculties and provide a door em bodyin the desirable features as set forth hereina ove.

Solid material, such as ashes, accumulatward end of the door and there discharged 7 ing in the side troughs may be removed by any suitable positive fluid, mechanical or" manual means as desired. Little or no atten- Having thus described my invention so that those skilled in the art may practice the same, what I desire to secure by Letters Patent is defined in what is claimed.

lVhat is claimed is:

1. In combination with a hopper having a bottom discharge opening, a frame surrounding the opening and connected to the hopper and provided with depending flanges adjacent to the inner edges thereof, and a movable door cooperating when in closed position with the frame to prevent the discharge of solid material through the opening while providing for the free escape of liquid thereth-rough, the door having a flange across its rear end inclined rearwardly and extending well above the top of the body portion of the door, anda trough on each side of the doorlocated approximately in the horizontal plane of the door-and extending from adjacent to the rear end of the door to the front end thereof, the said troughs cooperatingwith the said flange to receive liquid intercepted by the flange, and a trough adjacent to the front end of the door adapted to re ceive liquid from the door.

2. A'door for a hopper having a bottom opening comprising a body portion, a rearwardly inclined liquid intercepting flange extending upwardly well above the body portion from adjacent to the topof the body portion and a liquid collecting and conducting trough extending lengthwise of the door at each side thereof and adapted to receive liquid intercepted by the said flange, the rear 100 end Wall of each said side trough being inclined rearwardly and upwardly to a height substantially equal to said flange.

3. A door for a hopper having a bottom opening comprising a body portion, a rear- 105 wardly inclined liquid intercepting flangeextending upwardly well above the body portion from adjacent to the top of the body portion, troughs extending along the sides of the door and adapted to collect liquid from 11 the top of said door, liquid intercepting and directing flanges extending forwardly from the rear flange to points in front of the rear ends of the said troughs to direct liquid into the troughs, the rear ends of the said troughs 115 being inclined upwardly and rearwardly.

4. A door for a hopper having a bottom opening comprising a body portion a rearwardly inclined flange extending upwardly well above the body'portion from adjacent to the top of the body portion, open topped mechanically cleanable liquid collecting and conducting side troughs adapted to receive liquid from the top of the said door andcon 125 duct it to the front end of'the door, and liquid intercepting and directing side flanges extending forwardly from the ends of the rear flange to a point in front of the rear ends of the side troughs, the rear end wall of 130 each said side trough being inclined rearwardly and upwardly.

5. A gate for a hopper having a bottom opening comprising a frame surrounding the opening and having flanges depending therefrom adjacent to the several sides of the said opening; and a door cooperating with the frame and having a body portion, a liquid intercepting end flange at the rear end of the door extending well above the top of the body portion and having an upwardly and outwardly inclined top surface, open topped liquid collecting and conducting side troughs on opposite sides of the door disposed outside the adjacent depending flanges of the frame and having upwardly and outwardly inclined rear end walls adjacent to the said end flange, means on the door for intercepting liquid passing through the hopper discharge opening and directing it into the said troughs, a horizontal forwardly extending liquid discharge flange at the front end of the door and a stationary liquid receiving trough adapted to receive liquid from the troughs and horizontal flange.

6. A door for a hopEer having a bottom opening comprising a ody portion, a rear end liquid intercepting flange extending well above the top of the said body portion and having a rearwardly inclined top surface, open topped troughs on opposite sides of the door, the rear end wall of each trough having a rearwardly and upwardly inclined top surface, and a horizontal forwardly extending liquid discharging flange at the front end of the door.

7. A door for a hopper having a bottom opening comprising a body portion, a rear end liquid intercepting flange extending well above the top of the said body portion and having a rearwardly inclined top surface, open topped troughs on opposite sides of the door, the rearend wall of each trough merging into and being integral with the said rear end flange and having a rearwardly and upwardly inclined top surface, and a horizontal forwardly extending liquid discharging flange at the front end of the door.

.In testimony whereof I hereunto aflix my signature this twenty-eighth day of July,

FRANK B. ALLEN.

Images