US3273755A

US3273755A - Self-dumping bucket with brake

Info

Publication number: US3273755A
Application number: US356547A
Authority: US
Inventors: Robert D Shomo
Original assignee: Individual
Current assignee: Individual
Priority date: 1964-04-01
Filing date: 1964-04-01
Publication date: 1966-09-20
Anticipated expiration: 1983-09-20

Description

Sept' 20, 1966 R. D. SHOM@ 3,273,755

SELF-DUMPNG BUCKET WITH BRAKE i L nl h| zl i E l 34 E '9 2O-`Ir 56 2| l l l 1 2" n 3| I6 25 L J 'f' P f INVENTOR.

l *l 30 '1' J/JROBERT D. sHoMo 2?/ E- @.WLW

ATTORNEYS Sept. 20, 1966 R, D, sHoMO 3,273,755

SELF-DUMPING BUCKET WITH BRAKE Filed April l, 1964 4 Sheets-Sheet 2 30 29 23 INVENTOR.

- 4 ROBERT am@ MIWSLW ATTORME YS Sept. 20, 1966 R. D. sHoMo SELF-DUMPING BUCKET WITH BRAKE 4 Sheets-Sheet S5 Filed April l, 1964 INVENTOR.

ROBERT D. SHO MO A TTC RNE YS Sept. 20, 1966 R. D. SHOM@ SELF-DUMPING BUCKET WITH BRAKE 4 Sheets-Sheet 4 Filed April l, 1964 INVE/T.

ROBERT D. SHiOMO ATTORNEYS United States Patent O 3,273,755 SELF-DUMPING BUCKET WITH BRAKE Robert D. Shomo, Taylor, Mich., assigner of thirty-three and one-third percent to Ernest S. Shomo, Taylor,

Mich., and thirty-three and one-third percent to Claude R. Boyd, Dearborn, Mich.

Filed Apr. 1, 1964, Ser. No. 356,547 19 Claims. (Cl. 222-166) This invention relates to a self-dumping bucket or hopper device and, more particularly, to an improved selfdumping hopper device in which the dumping rate is safely and accurately controlled.

Dumping hopper devices are well known in the art. These known devices, however, exhibit numerous disadvantages. For example, these devices do not employ any mechanism for closely controlling the entire dumping operation but usually depend on the weight of the hopper and load to complete the dumping operation, which operation is usually uncontrolled and terminated with considerable impact. Further, because of this impact, the types of goods and materials which can be handled are limited. Still further, few of these devices include structure for closely controlling the dumping rate and safety features f-or preventing accidental dumping.

Accordingly, it is an object of this invention to provide an improved dumping hopper device.

Another object of this invention is to provide an improved self-dumping hopper device.

It is another object of this invention to provide a selfdumping hopper device with a braking system for accurately controlling the dumping operation of the hopper throughout the dumping thereof.

Still another object of this invention is to provide a self-dumping hopper with safety means for preventing accidental dumping of the hopper.

Briefly, in accordance with aspects of this invention, I provide a self-dumping hopper with a platform, or frame, and a handle pivotally mounted on the platform for controlling the entire dumping operation, which handle includes a locking latch for engaging a stationary portion of the platform to prevent accidental movement of the locking handle. Advantageously, the control handle is linked to a pair of brake arms for closely controlling the movement, or pivoting, of the hopper throughout its pivoting operation. In accordance with another feature of this invention, I employ a self-dumping hopper having a pair of opposed slide pins, or shafts7 projecting from the sides thereof at points between the hopper center of gravity and a side of the hopper. These slide pins are each mounted in pairs of sliding blocks, which pairs of blocks slide relative to the frame between a xed brake member and a pivotally mounted brake member. Advantageously, the pivoting ends of the pivotally mounted members are each connected by links to the handle so that the handle may be manually moved to move the pivotally mounted brake members and thus apply a braking force to the sliding blocks to closely control the rotation of the hopper throughout the dumping operation. In accordance with another aspect of this invention, a braking assistance means such as a pair of helical springs or hydraulic cylinders is connected to corner posts of the .platform and each spring or hydraulic cylinder is connected to one of the slide pins to oppose the dumping motion of the hopper and to assist in restoring the hopper to its upright position.

In accordance with yet another aspect of this invention, safety features are provided to prevent accidental dumping. One of these safety features is the previously mentioned latch on the handle which prevents the handle from being raised unless the latch is rotated. Another safety feature is the connection between the handle and Patented Sept. 20, 1956 frame for rotation of the handle about horizontal pivot pins so that the handle, which is linked to the brake arms, normally maintains a locking engagement with each of the brake arms and thus the normal weight of the handle locks the hopper in an upright position. In accordance with a further safety feature of this invention, a wedge device is located on each side of the hopper and attached to the handle to engage the slide pins and thereby prevent sliding of the slide pins and thus lock the hopper in an upright position. Advantageously, these wedge devices, or slide pin stop members,l serve to bring the hopper in an upright position when the handle is pivoted downwardly and the hopper is nearly upright. In accordance with still other aspects of this invention, a self-dumping hopper device is -provided with a control handle which controls the initiation of the dumping operation and also accurately controls the braking of the hopper throughout the dumping operation. Advantageously, by the use of this control and braking handle, the hopper can be stopped in any position during the dumping and held in that position by the application of a force to the handle. Because the brake mechanism and the associated mechanism is completely inclosed to thereby prevent accidents, the operator cannot injure himself. In accordance with still further aspects of this invention, I provide a rocker-mounted, self-dumping hopper which dumps itself even when substantially empty because one of the sides slopes inwardly to the bottom and a vertical projection of the center of gravity passes through this side. Stated in another manner, the hopper is formed with an inclined side which joins the bottom to define a line so that a vertical projection of the hopper center of gravity extends through the inclined side, causing the weight of the hopper to aid the dumping of the hopper even when the hopper is in an upright position.

These and various -other objects and features of the invention will be more clearly understood .from a reading of the detailed description of the invention in conjunction with the drawings in which:

FIG. 1 is a side view, in elevation, of the illustrative embodiment of this invention;

FIG. 2 is a view of the invention of FIG. 1 taken along the lines 2-2 and looking in the direction of the arrows;

FIG. 3 is a plan view of the embodiment of FIG. 1 taken along the lines 3-3 and looking in the direction of the arrows;

FIG. 4 is a side elevational view similar to FIG. 1 and showing the hopper partially rotated and the control handle in an elevated position;

FIG. 5 is a detail, to an enlarged scale, of a portion of the embodiment of FIG. 1;

FIG. 6 is a view, in section, taken along the lines 6-6 of FIG. 5 and looking in the direction of the arrows;

FIG. 7 is a fragmentary view, in elevation and partly in section, of the embodiment of FIG. 1 taken along the lines '7-7 thereof to an enlarged scale;

FIG. 8 is a fragmentary view to an enlarged scale of the control handle;

FIG. 9 is a view, in elevation and partly in section, to an enlarged scale taken along the lines 9 9 of FIG. 2; and

FIG. 10 is a fragmentary elevational view of a modification of the invention showing the use of hydraulic cylinders in the braking system.

FIGS. 1 and 2 are views, in elevation, taken at right angles relative to each other of one illustrative embodiment of this invention `and show a hopper 10 mounted on a supporting framework, or frame, 12 so that the hopper 10 -may be rotated or rocked relative to the. framework, or platform, 12 to dump the hopper contents. The hopper lll includes ra vertical side 13 which terminates at the top in a lip 14 which serves as a reinforcing member for the hopper 18. The hopper also includes an inclined or sloping side 15 which slopes downwardly toward the vertical side 13 and terminates in an integrally formed bottom portion 16. The hopper 18 further includes a pair of opposing, substantially vertical,

sides

17, 18, as best seen in FIGS. 2 and 3. A pair of

rockers

19, 20 is secured in spacial relationship to the

sides

17, 18, respectively, by means of blocks 21 which are welded, or otherwise secured, to the sides .17, 18 and to the rockers .19, 28. These

rockers

19, 28 preferably define sectors of circles `and support the hopper 10 on frame 12 for rocking movement in a manner which will be subsequently described.

The framework 12 includes a pair of

longitudinal base members

23, 24 which support the

rockers

19, 20. Each of the

rockers

19, 28 has a plurality of equally spaced studs, or pins, 25 on the periphery thereof which engage correspondingly spaced holes 26 on

base members

23, 24 to prevent relative sliding movement between rockers 19, and

base members

23, 24. These

base members

23, 24 are connected by a group of six

cross members

28, 29, 30, 31, 32 and 33, three of which define the floor engaging portion of the framework. Preferably, but not necessarily, the cross members 2S through 33 are formed from bar channel, i.e., U-shaped in cross section and have the arms, or anges, of the Us directed downwardly.

Members

28, 29 and 30 provide `a substantially wide surface portion in the form of the cross bar of the Us to support the

base members

23, 24 of the

framework

1,2. A group of

cross members

31, 32 and 33 connects the

longitudinal members

23, 24 and is aligned and mounted above the

door engaging members

30, 29 and 28, respectively. The framework 12 includes a group of four

corner posts

34, 35, 36 and 37. These corner posts are vertically mounted in pairs on the

longitudinal members

23, 24 and are secured thereto by suitable means, such as by welding.

The braking means includes a pair of intermediate upright members 39, 4t) secured to the

longitudinal members

23, 24, respectively. A pair of short sections of

bar channel

41, 42 is mounted lunder the ends of the

base members

23, 24, respectively, and completes the Hoor engaging portion of the platform 12. The intermediate upright member 39 is connected to the corner post 35 by means of a bar channel member 43, which member acts as the stationary lower brake yarm, or member, in a manner which will be subsequently described. Similarly, on the opposite side of the yframe 12 from the member 43, a similar bar channel member 44 connects the vertical member 40 with corner post 37 and denes a similar stationary lower brake member. A pair of upper brake members, or arms, 45, 46 are each pivotally connected to an

extension

47, 48 of the respective

upright members

39, 48 by means of a pair of

pins

49, 50 so that the upper brake arm 45 pivots in a vertical plane which includes the stationary brake member 43 and the upper brake arm 46 pivots in a vertical plane including the stationary brake member 44. These

brake members

43, 44, 45 and 46 are employed to control the dumping, or pouring, rate, that is, the rate at which the hopper y10 pivots, or rocks, relative to the frame 12 in a manner which will be subsequently described. The frame 12 includes a brace 52 between corner posts 34, 36. The frame 12 also includes a reinforcing brace 53 between the corner post 34 and the intermediate member 39 and a similar reinforcing brace 54 between the corner post 36 and the intermediate upright member 40.

The braking means lalso includes a pair of shafts, or slide pins 55, 56, one of which is secured to each of the

sides

17, 18, respectively, of the hopper 18 at points dening the center of curvature of

rockers

19, 20, respectively. Rocking movement of the hopper 10 is controlled by controlling the translation of these

shafts

55, 56 relative to the frame 12. The slide pins 55, 56 are each rotatably mounted in a pair of spaced apart bronze bearing or brake blocks 57, which may be of other suitable bearing material, each of which defines a portion of a cylindrical surface to receive the slide pins, or shafts, 55, 56 and which blocks slide in pairs relative to the respective stationary `

arms

43, 44 and the respective pivotally mounted

brake arms

45, 46. A pair of

helical springs

58, 59 are each connected between one of the slide pins 56, 55 and one of the corner posts 34, 36. These springs oppose the dumping motion of the hopper and aid the operator in restoring the hopper to its vertical, or upright, position. A control and braking handle 60 is pivotally mounted on the corner posts 35, 37 by means of a pair of apertured extension members 61, 62 which are welded, -or otherwise secured, to the corner posts 35, 37, respectively. These apertured extension members engage a pair of outwardly projecting

pins

63, 64 on the handle 60 to support the handle in pivotal relationship.

The handle 60 includes a pair of safety stop blocks 68 which blocks depend from intermediate portions of the handle 60 on opposite sides of the hopper 10. These safety stop blocks 68 each includes a surface 69 which is substantially perpendicular to the handle 60. These surfaces 69 terminate in tapered or inclined surfaces 70. The inclined surfaces 70 engage the

shafts

55, 56 when the handle is approaching its lowermost position, as viewed in FIGS. l and 2, to 'bring the hopper 10 to its terminal vertical position. From this position, the hopper 10 cannot begin to pivot, or rock, until the handle 60 is raised to a point where the inclined surf-aces 70 no lon-ger engage the slide pins 55, 56 and thus permit the

pins

55, 56 to be translated relative to the frame 12.

The brake handle 60 `is linked to the two

upper brake members

45, 46 so that the handle acts as a manually operable brake control member by means of which the brake members may lbe pivoted in their respective vertical planes to apply increased or decreased frictional pressure to the bearing blocks, or brake blocks, 57. Link 72 connects the handle 60 to the upper brake member 45 while link 73 connects the handle 60 to the upper brake member 46. Link 72 is connected to the handle 60 and to the upper brake member 45 by means of a pair of

pins

74, 75. Similarly, link 73 is connected to the handle 60 and to the upper brake member 46 by means of -a pair of

pins

76, 77. When the handle 60 is moved upwardly, the

upper brake arms

45, 46 will be pivoted upwardly and the pressure on the brake blocks 57 will be decreased. Conversely, when the handle 60 is moved downwardly, the

upper brake members

45, 46 will be moved downwardly and the pressure -on the brake blocks 57 will be increased thus decreasing the rate at which the hopper shafts, vor pins, 55, 56 are translated relative to the frame 12.

FIG. 4 shows the beginning of the tipping operation in which the handle 60 has been raised to disengage the safety stop blocks 68 from the sliding pins, or shafts, 55, 56 and the pull of the center of .gravity of the loaded hopper 10 through the inclined side, or sloping side, 15 has caused the tipping action to begin. The hopper 10 has rotated on its

rockers

19, 20 While the slide pins, such as pin 55, have been translated relative to the platform, or framework, 12 and have elongated the respective helical springs, such as the spring 58 shown in FIG. 4. At any time during the continued tipping of the hopper 10, i.e., the rotation of the hopper relative to the frame 12, the operator may apply a downward pressure to the handle 10 to force downwardly on the

upper brake members

45, 46 through the

respective links

72, 73 to thereby increase the frictional pressure on the brake blocks 57.

FIG. 5 shows the details of slide pin 55 and the sliding brake blocks 57 as well as the engagement of the safety block 68 with the pin 55, all of which are shown to an enlarged scale relative to the scale of FIGS. l

through 4. With the handle 60 in the horizontal position, the inclined surface 70 of block 68 engages the slide pin 55 to thus preclude transverse movement of the pin 55. As previously explained, however, when the handle 60 is raised, the safety blocks 68 will be moved to a position in which surfaces 70 no longer engage slide pins 55, 56.

FIGURE 6 is a view of the structure of FIG. 5 taken along the lines 6 6 and looking in the direction of the arrows. FIG. 6 shows the shaft, or slide pin 55, secured to the hopper 10 by means of an annular cylindrical sleeve 79 which is welded, or otherwise secured, to the hopper 10 as indicated at 80. FIGS. 5 and 6 show that the bearing blocks 57 are generally rectangular in configuration and include opposing arcuate surfaces which engage the shaft, or slide pin, 55. The bearing blocks 57 slide in channel members on the respective upper and lower brake arms. For example, the lower bearing block 57, as viewed in FIG. 6, is slidably mounted in a channel member 81 which is generally U-shaped in cross section. Channel member 81 is secured to the lower brake arm 43 as by welding at spaced

points

82, 83 along the respective edges of the lower brake arm and the upper bearing block 57 is slidably mounted in an inverted U- shaped cross section member 84 which is secured to the upper brake arm 45 by means of welding, such as welds 85, 06. As previously mentioned, the handle 60 is connected to the upper brake arm 45 by means of a link 72 which is connected to the upper brake arm by means of a pin75. As also previously mentioned, the upper brake arm 45 is pivotally mounted on the intermediate upright member 39 by means of the extension 47 and the pivot pin 49 so that downward pressure applied to the upper brake arm through the manual operation of the handle 60 increases the friction applied to the bearing blocks 57 to thus control the translatory movement of the shaft, or slide pin, 55. It will be seen that the braking of the bearing blocks is effected by both a friction means and a positive, and mechanical scissors type action between the upper and lower brake means. A great extent of the said braking is accomplished by the scissors action alone.

The cooperation -between the rocker 19 and the longitudinal base member 23 is shown in FIG. 7, which is an enlarged view taken along the lines 7-7 of FIG. 4 and looking in the direction of the arrows. A similar cooperation takes place between the opposite rocker and the longitudinal base member 24. The pins 25 on the periphery of the rocker 19 engage the holes, or apertures, 26 in the longitudinal member 2.3 to act as a gear like arrangement to assure smooth rolling of rocker 19 without slipping on the longitudinal member 23.

FIG. 8 shows a detail to an enlarged scale of the connection between the handle 60 and one of the upper brake members 45. A similar structure is employed to connect the handle 60 to the other Iupper brake member 46, accordingly, only one will be described in detail. The handle 60 is connected to the upper brake by means of a link 72 which is connected to the handle 60 by means of a pin 74. The link 72 is connected to the upper brake arm 45 by means of pin 75 which has a rectangular portion secured to the upper brake arm 45 by means of welding, as indicated at 83, 89, or by any other suitable means. It is understood that the link 72 is retained on

pins

74, 75 by means of suitable keys, not shown, which are inserted through suitable apertures in the respective pins. Advantageously, the corner post has a stop plate 94 secured to the top thereof as by welding as indicated at 95 and the plate 94 has a portion 96 which projects into the path of the upper brake arm 45. This projection 96 acts as a positive stop for the upper brake arm 45 to limit the pivotal motion of arm 45. Thus, the projection or stop 96 prevents the handle 60 from being raised too high to permit the upper bearing block 57 to be dislodge from its position in the inverted U-shaped track 84.

Another of the safety features is shown. in detail, to an enlarged scale, in FIG. 9 which is a view taken alongthe lines 9 9 of FIG. 2 and looking in the direction of the arrows. The purpose of this safety device is to prevent accidental lifting of the handle 60 and the resulting accidental dumping of the hopper |10. This safety device includes a lock latch which is pivotally mounted on the handle 60 -by means of an arm 102 welded, or otherwise secured, to the handle as indicated at 103 and connected to the latch 100 by means of a suitable pin 105. The locking latch 100 includes a catch portion 107 which is substantially perpendicular to the body 108 of latch 100 and engages the lower surface of the horizontal brace 52 connecting

corner members

34, 36. Latch 100 is retained in this locked position by means of a spring 110. Latch `100 includes an upper end 112 which may be rotated in the direction of the handle 60 so that the catch 107 will swing leftwardly as viewed in FIG. 9 and will disengage the brace member 52. This unlocking operation must be done with sufficient force to overcome the force of the spring 110. Each time the handle 60 is lowered into its horizontal position, a diagonal edge 115 of the latch member 100 will engage the top portion of the brace member 52 causing the lower end of the latch 100 to swing outwardly until the catch 107 can engage the lower surface of the transverse member 52 under the force of the spring and thus act as a safety catch for the handle.

FIG. l0 illustrates a modification of the invention wherein a hydraulic braking cylinder indicated by the numeral 116 may be substituted and used instead of the spring 53 on each side of the hopper. It will be understood that the hydraulic cylinder 116 would be mounted on each side of the hopper in the same location as the springs 55. The hydraulic braking cylinder 116 would preferably be used on large hoppers. The braking effect is accomplished by restricting the flow of hydraulic fluid between the opposite ends of the cylinder.

As shown in FIG. 10, the hydraulic cylinder 116 is hingedly mounted at the rear end thereof to the vertical corner post 34 by means of a suitable hinge pin 117. The hydraulic cylinder 116 is provided with a piston 118 to which is fixed a cylinder rod 119 that extends outwardly toward the slide pin and shaft 55. The outer end of cylinder rod 119 is journaled on the adjacent slide pin and shaft 55 by any suitable means as by the jiournal member generally indicated by the numeral 120.

The cylinder 116 is provided with a

fluid conduit

121 and 122 at each end thereof which are adapted to admit and exhaust hydraulic fluid from the opposite ends of the cylinder 116. The outer ends of the

conduits

121 and 122 are connected to a suitable flow control valve 123 which is manually adjustable to control the rate of ow between the opposite ends of the hydraulic cylinder 116. It will be understood that the cylinder is lled with hy draulic fluid `whereby when the control valve 123 is completely closed, there will be no flow between the

conduits

121 and 122 and the piston 118 will be held in whatever position it may be in at that instant. If the flow control valve 123 is opened a desired amount, and the hopper 10 is dumped, the piston 118 would be moved to the left and the fluid would ow from the left end of the cylinder and through the

conduits

121 and 122 and the valve 123 to the right end of the cylinder. When the hopper is 'brought back to the upright position, the iiow of fiuid would be reversed in the aforedescribed circuit. It will be seen that the amount of opening of the valve 123 will control the rate of exchange of the hydraulic fluid between the opposite ends -of the hydraulic cylinder 116 and provide an assisting braking means for a hopper provided with a pair of hydraulic cylinders 116.

While I have shown and described a preferred embodiment of this invention, it is understood that the concepts thereof can be applied to other embodiments without de- `parting from the spiritand scope of this invention.

What is claimed is:

1. A dumping hopper device including:

a frame;

hopper means mounted on said frame for rotation relative thereto, said hopper means including a pair of rocker members each having a surface defining a sector of a circle, each of said surfaces engaging said frame for rotation relative thereto; and

braking means for closely controlling the rotation of said hopper means relative to said frame, said braking means including pin means mounted on said hopper means at points concentric with said rocker member surfaces, friction means for controlling the translation of said pin means relative to said frame, a stationary brake member for each pin means, a movably mounted brake member for each pin means, a pair of bearing blocks engaging each of said pin means, said bearing `blocks being slidably mounted between a stationary and a movably mounted brake member, and handle means for controlling the friction between said brake members and said blocks.

2. The combination according to claim 1, further including: lock means on said handle means for engaging said pin means and preventing the translation of said pin means relative to said frame means until said handle means is moved from a terminal position.

3. The combination according to claim 1, further comprising: a locking latch pivotally mounted on said handle means and positioned to engage a portion of said frame when said handle means is in -a released terminal position.

4. A selfdumping hopper device inclu-ding:

a hopper having side means and a bottom, at least one of said side means tapering inwardly to join said bottom along a line so that the center of gravity of said hopper lies in a vertical plane which passes through said one side means;

frame means including a pair of elongated members for supporting said hopper;

rocker means on said hopper for engaging said elongated members;

shaft means on said side means;

a pair of bearing means engaging each of said shaft means;

brake means on said frame means and including a xed member and a pivotally mounted member for each pair of bearing means, each pair of said bearing means being slidably mounted between a xed and a pivotally mounted member; and

handle means pivotally mounted on said frame means `and connected to each pivotally mounted member for controlling the frictional engagement between said pivotally mounted member and said bearing means.

5. The combination according to claim 4, further comprising: a stop member mounted on said frame means and positioned in the path of one of said pivotally mounted members to limit the movement of said one pivotally mounted member in response to the operation of said handle means.

6. The combination according to claim 4, further comprising: latch means mounted on said handle means for coupling said handle means to said frame means.

7. The combination according to claim 4, further comprising: stop means mounted intermediate said handle means and positioned to engage said shaft means when :said handle means is in a released position to prevent movement of said shaft means relative to said fraile means until said handle means -is moved from said released position.

8. The combination according to claim 4, further comprising: spring means connected to said frame means and to said shaft means for assisting in the return of said hopper to an upright position.

9. A self-dumping hopper device including:

a hopper having side means and a bottom, one of said side means tapering inwardly to join said bottom ti such that the center of gravity of said hopper lies in a vertical plane which passes through said one side means;

frame means including a pair of elongated members for supporting said hopper;

rocker means on said hopper for engaging said elongated members;

a pair of shaft means on said side means;

a pair of spaced apart bearing blocks engaging opposite sides of each of said shaft means;

stationary brake means mounted on said frame means and engaging one of each of said pairs of bearing blocks;

pivotally mounted brake means mounted for pivotal movement on said frame for engaging the other of each of said pairs of spaced apart bearing blocks; and,

handle means pivotally mounted on said frame means and connected to said pivotally mounted brake means, said pivotally mounted brake means and said stationary brake means defining transverse passages for each of said pairs of bearing blocks.

10. The combination according to claim 9, further comprising: stop means on said handle means for engaging said shaft means when said handle means is in a released position for preventing the tipping of said hopper until said handle means is moved.

11. The combination according to claim 9, further comprising: latch means mounted on said handle means for locking said handle means to said frame means.

12. A self-dumping hopper device including:

a hopper having side wall means and a bottom, at least `one of said side wall means tapering inwardly to join the bottom along a line such that the center of gravity of said hopper lies in a vertical plane which passes through said one side wall means;

frame means including a pair of elongated members for supporting said hopper;

rocker means on said hopper for engaging said elon- -gated members in rocking relationship;

shaft means on opposite ones of said side means;

stationary brake means engaging one of said bearing blocks of each of said pairs of bearing blocks;

pivotally mounted brake means engaging the other bearing block of each of said pairs of bearing blocks; and,

handle means pivotally mounted Ion said frame means and including linking means connecting said handle means to said pivotally mounted brake means.

13. The combination according to claim 12, further comprising: stop means connected to said handle means `and positioned in the path of each of said shaft means for preventing translation of said shaft means until said handle means is pivoted relative to said frame means.

14. The combination according to claim 12, further comprising: stop means on said frame means positioned in the path of each of said pivotally mounted brake means to limit the pivotal movement of said last-mentioned brake means.

15. The combination according to claim 12, further comprising: latch means on said handle means for engaging said frame means to prevent the accidental movement of said handle means relative to said frame means.

16. The combination according to claim 15, wherein: each of said brake means has opposed flanges projecting toward another of said brake means.

17. A dumping hopper device including:

a frame;

hopper means mounted on said frame for rotation relative thereto;

braking means for closely controlling the rotation of said hopper; and,

means including shaft means mounted on said hopper means;

means mounting said shaft means for rotation and translation relative to said frame; and, means mounted on said frame for controlling the transla: tion of said shaft means relative to said frame.

18. A dumping hopper device including:

a frame;

hopper means mounted on said frame for rotation relative thereto;

braking means for `closely controlling the rotation of said hopper; and,

said braking means including a stationary brake member, a pivotally mounted brake member and pin means connected to said hopper means and slidably mounted between said brake members, and handle means connected to said pivotally mounted brake member.

19. A dumping hopper device including:

a frame;

hopper means mounted on said frame for rotation relative thereto;

braking means for closely controlling the rotation of said hopper;

said hopper means including a pair of rocker memmers, each having a surface defining a sector of a circle, and each of said surfaces engaging said frame for rotation relative thereto; and,

said braking means including pin means mounted on said hopper means at points concentric with said surfaces of said rocker members; means mounting said pin means for rotation and translation relative to said frame; and, friction means for controlling the translation of said pin means relative to said frame.

References Cited by the Examiner UNITED STATES PATENTS 1,038,318 9/1912 Doud 298-178 X 1,225,517 5/1917 Smith 188-83 1,635,954 7/1927 Poth 298-38 X 1,739,376 12/1929 Sherwood 298-38 2,190,869 2/ 1940 Frentzel et al. 298-14 2,591,785 4/ 1952 Crawford et al.

3,141,576 7/1964 Heise 222-160 ROBERT B. REEVES, Primary Examiner.

LOUIS l. DEMBO, Examiner.

25 N. L. STACK, Assistant Examiner.

Claims

17. A DUMPING HOPPER DEVICE INCLUDING: A FRAME; HOPPER MEANS MOUNTED ON SAID FRAME FOR ROTATION RELATIVE THERETO; BRAKING MEANS FOR CLOSELY CONTROLLING THE ROTATION OF SAID HOPPER; AND, MEANS INCLUDING SHAFT MEANS MOUNTED ON SAID HOPPER MEANS; MEANS MOUNTING SAID SHAFT MEANS FOR ROTATION AND TRANSLATION RELATIVE TO SAID FRAME; AND, MEANS MOUNTED ON SAID FRAME FOR CONTROLLING THE TRANSLATION OF SAID SHAFT MEANS RELATIVE TO SAID FRAME.