US2700574A - Cable operated bottom gate for a hopper - Google Patents
Cable operated bottom gate for a hopper Download PDFInfo
- Publication number
- US2700574A US2700574A US273575A US27357552A US2700574A US 2700574 A US2700574 A US 2700574A US 273575 A US273575 A US 273575A US 27357552 A US27357552 A US 27357552A US 2700574 A US2700574 A US 2700574A
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- hopper
- cable
- gates
- drum
- sheaves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/56—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load-transporting element having bottom discharging openings
Definitions
- This invention relates. to hopper type trailers, semitrailers, wagons and similar material handling apparatus of that type adapted for transporting bulkymaterials such as earth, coal, gravel, etc), and havinga hopper bottom through which the. entire loadmaybe discharged.
- One of the objects of my invention is,'therefore, to provide a cable. operated system for supplying a power open and power close "to the bottom gates of a hopper.
- Another objectof myinvention is .to provide power closed gates which will overcome resistance ofiered to their closing'by stones, gravel or other heavy objects;
- Another object of my' invention isto. provide :anieconomical yet fast acting cable powersystem for opening and closing 'bottom' gates:
- Another-object-of -my-invention istoprovide such a system in which the maintenance of the components is simple and economical.
- Another object of my invention is to provide a dump gate opening and closing system which does not require latches or closure devices to keep the gates in a closed position.
- Fig. 1 is a side elevation of a tractor and hopper type semi-trailer embodying my invention.
- Fig. 2 is an enlarged view of the rear end of the hopper body with the bottom gates closed. For purposes of clarity Figs. 2 and 3 are shown without the wheels and frame support members.
- Fig. 3 is an enlarged view of the front end of the hopper body with the bottom gates closed.
- Fig. 4 is an enlarged fragmentary view of a double s sheave housing.
- Fig. 5 is an elevation of the same double sheave housmg.
- Fig. 6 is an enlarged view of the double drum showing cables wound thereon.
- Fig. 7 is an end view of the same drum.
- Fig. 8 is a diagrammatic view on a reduced scale of the rear end of the hopper body, illustrating the bottom gates in the open position.
- the letter A designates a hopper type semi-trailer constructed in accordance "ice with this invention, and B is a two-wheel tractor to which it is coupled.
- the trailer'A comprises a hopper 1 welded at its -rear to frame members 2, 3, 4 and-5 which. are in turn supported by a pair of rear wheels 6 (only one appears in the drawings), the hopper being welded at its front to'yoke 7 and struts 8' and-8b which are in turn pivotally connected'by. steering assembly 9 to tractor B.
- Hopper 1 which isopen at the top, and bottom, is provided with vertical end walls 10 and'll, and downwardly converging side walls 12 and 13 which haveverti'cal' portions 14 and 15.
- Weldedalong sidewalls 12 and .13 are longitudinal channels 16 and '17.
- Channel 16 has mounted at its rear sheave housings and sheaves 18 and 19, and atits forward end sheave housings and sheaves 20' and 21;
- channel 17 has sheave housings andsheaves 22 and 23 mounted at its rear and sheave housings and sheaves 24 and 25 mounted at its forward end. 7
- Reanwall 10 has welded thereto brackets 26, 27 and 28 and gate hinge ear 293
- Reversible motor 30 (capable of delivering "horsepower) and gearbox 31 are se cured between brackets 27 and 28 and over hinge ear 29 by welding.
- Rotatably attached to gear box 31 is a double Winding drum'32 (shown enlarged in Fig; 6) having smooth' winding surfaces" 33'and 34 separated by flange 35.
- Also welded to rear wall 10 is a group of sheave housings designated by reference numerals 36, 37, 38, 39, 40, Hand 42, each housing having rotatably mounted therein one or more sheaves, part of which are referred to in detail hereinafter.
- Pivotally-supported by pins '43 and 44 arepivot arms 45 and 46 to which are welded oppositely swinging bottom gates 47 and 481
- Welded to arms 45"and 46 are channels 49 and 50, on each of which is secured a double sheave-housing.
- An enlarged view-of one such double housing 51 is 'shown in Figs. 4 and 5 wherein numerals 52 represent bolts securingthe housing to channel 65.”
- Front wall'11 has welded thereto-yoke'7 and-gate hinge ear'53. Cable tightening mechanisms "54 and 55 and cable deadend pipes 56 and 57 are also secured to wall 11 by Welding.
- Sheave housings 58 and 59 are welded to wall 11 below hinge ear 53.
- Front pivot arms 60 and 61 are pivotally mounted by pins 62 and 63 in the hinge ear and have welded thereto gates 48 and 47 respectively.
- Welded to front arms 60 and 61 are channels 64 and 65, each of which serves as a mounting for a double sheave housing identical with that shown in Figs. 4 and 5.
- Cable reeving Wound on double drum 32 are four cables 66, 67, 68 and 69.
- Cable 66 is dead-ended near one end of the drum by set screw 70 bearing against bracket 71, and thence extends in a clockwise direction (looking at Fig. 7) around the drum for a plurality of turns, thence off the drum.
- Cable 67 is dead-ended on the drum near flange 35 by set screw 72 bearing against bracket 73 and thence extends around the drum in a counterclockwise direction for a plurality of turns until drum surface 33 is substantially full of one layer of cable (consisting of cables 66 and 67), thence off the drum.
- cable 67 extends to and around sheaves 74, the inner sheave of channel 49, and sheave 76, thence to and around sheaves 18 and 20 along side wall 12, thence to the first wall 11 to and around sheave 77, to and around inner sheave 78 of channel 65, thence to dead-end on pipe 57.
- Cable 66 after leaving drum surface 33, extends to and around sheaves 79, 80 and 81, thence to and around sheaves 19 and 21 along side wall 12, thence around outer sheave 82 of channel 65 to dead-end on rod 83 of cable tightening mechanism 55.
- Cable tightening mechanism 55 comprises handle 84, worm 85 and ratchet 86 which engages rod 83. Upon rotation of handle 84, cable 66 may be tightened.
- Cables 68 and 69 are dead-ended on drum 32, wound in opposite directions on drum surface 34 until the surface is substantially full of a single layer of cable, and are thence reeved through a system of sheaves and dead ends in a manned identical with that described for cables 66 and 67 but on the opposite side of the longitudinal center line of the hopper. Just as 66 and 67 cooperate with channels 49 and 65 to control gate 47, so cables 68 and 69 cooperate with channels 50 and 64 to control gate 48.
- a bottom opening hopper having side walls, a front wall and a rear wall, a pair of oppositely swinging gates comprising the bottom of said hopper, said gates being attached to a pair of arms pivotally mounted on said front wall and a pair of arms pivotally mounted on said rear wall, a double sheave housing having a pair of sheaves mounted therein and fixed on each of said arms, a plurality of fixed sheaves mounted in spaced relation on the walls of said hopper, reversible power means having a double surface winding drum attached thereto mounted on said rear wall, a first pair of cables each dead-ended on one of said surfaces and oppositely wound thereon and thence reeved through certain of said fixed sheaves and certain of said arm sheaves to dead-end on said front wall, and a second pair of cables each deadended on the other of said surfaces and oppositely wound thereon and thence reeved through certain other fixed sheaves and certain other of said arm sheaves to deadend in a cable tightening mechanism mounted on said front wall, thereby
- a main frame having a hopper mounted thereon, oppositely swinging bottom opening gates pivotally connected to said hopper, and a constant tension cable winding system for power opening and power closing said gates, said system comprising a double surface drum adapted for reversible rotation, a first pair of cables each dead-ended on one of said surfaces and oppositely wound thereon and thence associated with one of said gates, a second pair of cables each dead-ended on the other of said surfaces and oppositely wound thereon and thence associated with the other of said gates, and cable tightening means for maintaining said cables substantially taut at all times.
- a main frame having a hopper mounted thereon, oppositely swinging bottom opening gates pivotally connected to said hopper, and a constant tension cable winding system for power opening and power closing said gates
- said cable winding system comprising reversible power means mounted on said hopper, a double winding drum driven by said power means and having two pairs of cables wound thereon, pivot arms secured to said gates and pivotally mounted on said hopper, sheave housings having sheaves mounted therein fixed on said hopper, and sheave housings having sheaves mounted therein fixed on said pivot arms, said cables being reeved between said drum and said sheaves so that upon rotation of said drum in one direction, said gates are opened and upon rotation of said drum in the opposite direction, said gates are closed.
Description
Jan. 25, 1955 R. G. LE TOURNEAU 2,700,574
CABLE OPERATED BOTTOM GATE FOR A HOPPER Filed Feb. 27, 1952 2 Sheets-Sheet 1 1805597 6'. 6 TOUQA/EHU,
I N V EN TOR.
Jan. 25, 1955 R. G. LE TOURNEAU CABLE OPERATED BOTTOM GATE FOR A HOPPER 2 Sheets-Sheet 2 Filed Feb. 27, 1952 205587 6'. Lam/ens IN V EN TOR. 6;
AVTUIQA/EVS United States Patent CABLE OPERATED BOTTOM GATE FOR A HOPPER Robert G. Le Tourneau, Longview, Tex.
Application February. 27, 1952, Serial No. 273,575
3' Claims. (Cl; 298 -35) This invention relates. to hopper type trailers, semitrailers, wagons and similar material handling apparatus of that type adapted for transporting bulkymaterials such as earth, coal, gravel, etc), and havinga hopper bottom through which the. entire loadmaybe discharged.
Heretofore it has been the practice to relayon gravity for either opening orclosing the bottom gates. Various types of hydraulic systems have also been used for controlling the opening or closing of the bottom gates. In those systems which relyon gravity to close the gates, one ofthe difficulties encountered is that gravel, ,stones and other heavyobjects become lodged between the "gates and keep; them 'from' closingsecurely. Another-problem is that some type oflatch or closure deviceis required to keep the gates closed'during the loading operation.
In those systems whichrely, on hydraulic means for opening or closing the gates,.one of the problems has been the impracticabilityof designing an. economical system capable-of delivering to the gates the high power desired for operating them at a'fast rate of speed. Another problem found .in hydraulic systems is the high cost of maintenance of hose and" pumping mechanisms.
One of the objects of my invention is,'therefore, to provide a cable. operated system for supplying a power open and power close "to the bottom gates of a hopper.
Another objectof myinvention is .to provide power closed gates which will overcome resistance ofiered to their closing'by stones, gravel or other heavy objects;
Another object of my' invention isto. provide :anieconomical yet fast acting cable powersystem for opening and closing 'bottom' gates:
Another-object-of -my-invention istoprovide such a system in which the maintenance of the components is simple and economical.
Another object of my invention is to provide a dump gate opening and closing system which does not require latches or closure devices to keep the gates in a closed position.
Other objects and advantages of the invention will become apparent upon perusal of the following detailed description taken in connection with the accompanying drawings. While I have shown and described herein a preferred embodiment, it is to be understood that the same is susceptible of modification and change without departing from the scope and spirit of my invention.
In the drawings,
Fig. 1 is a side elevation of a tractor and hopper type semi-trailer embodying my invention.
Fig. 2 is an enlarged view of the rear end of the hopper body with the bottom gates closed. For purposes of clarity Figs. 2 and 3 are shown without the wheels and frame support members.
Fig. 3 is an enlarged view of the front end of the hopper body with the bottom gates closed.
Fig. 4 is an enlarged fragmentary view of a double s sheave housing.
Fig. 5 is an elevation of the same double sheave housmg.
Fig. 6 is an enlarged view of the double drum showing cables wound thereon.
Fig. 7 is an end view of the same drum.
Fig. 8 is a diagrammatic view on a reduced scale of the rear end of the hopper body, illustrating the bottom gates in the open position.
Referring to the drawings in detail, the letter A designates a hopper type semi-trailer constructed in accordance "ice with this invention, and B is a two-wheel tractor to which it is coupled.
While my invention has been shown by way of example, embodied in a semi-trailer, it is to be understood that the invention may be equally well embodied in various other vehicle constructions, such for instance as full or four wheel trailers, railway cars, etc.
In the example shown, the trailer'A comprises a hopper 1 welded at its -rear to frame members 2, 3, 4 and-5 which. are in turn supported by a pair of rear wheels 6 (only one appears in the drawings), the hopper being welded at its front to'yoke 7 and struts 8' and-8b which are in turn pivotally connected'by. steering assembly 9 to tractor B.
Hopper 1, which isopen at the top, and bottom, is provided with vertical end walls 10 and'll, and downwardly converging side walls 12 and 13 which haveverti'cal' portions 14 and 15. Weldedalong sidewalls 12 and .13 are longitudinal channels 16 and '17. Channel 16 has mounted at its rear sheave housings and sheaves 18 and 19, and atits forward end sheave housings and sheaves 20' and 21; In like manner channel 17 has sheave housings andsheaves 22 and 23 mounted at its rear and sheave housings and sheaves 24 and 25 mounted at its forward end. 7
Reanwall 10 has welded thereto brackets 26, 27 and 28 and gate hinge ear 293 Reversible motor 30 (capable of delivering "horsepower) and gearbox 31 are se cured between brackets 27 and 28 and over hinge ear 29 by welding. Rotatably attached to gear box 31 is a double Winding drum'32 (shown enlarged in Fig; 6) having smooth' winding surfaces" 33'and 34 separated by flange 35. Also welded to rear wall 10 is a group of sheave housings designated by reference numerals 36, 37, 38, 39, 40, Hand 42, each housing having rotatably mounted therein one or more sheaves, part of which are referred to in detail hereinafter. Pivotally-supported by pins '43 and 44 arepivot arms 45 and 46 to which are welded oppositely swinging bottom gates 47 and 481 Welded to arms 45"and 46 are channels 49 and 50, on each of which is secured a double sheave-housing. An enlarged view-of one such double housing 51 is 'shown in Figs. 4 and 5 wherein numerals 52 represent bolts securingthe housing to channel 65."
Front wall'11 has welded thereto-yoke'7 and-gate hinge ear'53. Cable tightening mechanisms "54 and 55 and cable deadend pipes 56 and 57 are also secured to wall 11 by Welding. Sheave housings 58 and 59 are welded to wall 11 below hinge ear 53. Front pivot arms 60 and 61 are pivotally mounted by pins 62 and 63 in the hinge ear and have welded thereto gates 48 and 47 respectively. Welded to front arms 60 and 61 are channels 64 and 65, each of which serves as a mounting for a double sheave housing identical with that shown in Figs. 4 and 5.
Cable reeving Wound on double drum 32 are four cables 66, 67, 68 and 69. Cable 66 is dead-ended near one end of the drum by set screw 70 bearing against bracket 71, and thence extends in a clockwise direction (looking at Fig. 7) around the drum for a plurality of turns, thence off the drum. Cable 67 is dead-ended on the drum near flange 35 by set screw 72 bearing against bracket 73 and thence extends around the drum in a counterclockwise direction for a plurality of turns until drum surface 33 is substantially full of one layer of cable (consisting of cables 66 and 67), thence off the drum. After leaving the drum surface, cable 67 extends to and around sheaves 74, the inner sheave of channel 49, and sheave 76, thence to and around sheaves 18 and 20 along side wall 12, thence to the first wall 11 to and around sheave 77, to and around inner sheave 78 of channel 65, thence to dead-end on pipe 57.
Cable 66, after leaving drum surface 33, extends to and around sheaves 79, 80 and 81, thence to and around sheaves 19 and 21 along side wall 12, thence around outer sheave 82 of channel 65 to dead-end on rod 83 of cable tightening mechanism 55. Cable tightening mechanism 55 comprises handle 84, worm 85 and ratchet 86 which engages rod 83. Upon rotation of handle 84, cable 66 may be tightened.
Operation Upon rotation of drum 32 in a counterclockwise direction (looking at Fig. l or Fig. 7), cable 67 will wind off of drum surface 33 and cable 66 will wind onto the drum surface occupying the same space vacated by the unwinding cable. As cable 66 reels in and cable 67 pays out, channels 49 and 65 and pivot arms 46 and 61 will be moved outwardly from the longitudinal center line of the hopper and will open bottom gate 47. The open position of gate 47 is shown in Fig. 8.
Rotation of drum 32 in the direction indicated above will at the same time cause cable 69 to wind off of drum surface 34 and cable 68 to wind on in the same space vacated by the unwinding cable. As cable 68 reels in and cable 69 pays out, channels 50 and 64 and pivot arms 45 and 60 will move outwardly from the longitudinal center line of the hopper and will open bottom gate 48. The open position of gate 48 is shown in Fig. 8. Thus, it may be readily observed that gates 47 and 48 are power opened by cable means.
Upon rotation of drum 32 in the opposite direction (clockwise looking at Fig. 7) each cable winds on the drum in a direction opposite to that describe above, and gates 47 and 48 will be positively moved to a closed position. Thus, it may readily be observed that gates 47 and 48 are power closed by cable means.
From the description of my invention it may readily be seen that the objects set forth have been fulfilled.
What I claim and desire to secure by Letters Patent is:
1. In a bottom opening hopper having side walls, a front wall and a rear wall, a pair of oppositely swinging gates comprising the bottom of said hopper, said gates being attached to a pair of arms pivotally mounted on said front wall and a pair of arms pivotally mounted on said rear wall, a double sheave housing having a pair of sheaves mounted therein and fixed on each of said arms, a plurality of fixed sheaves mounted in spaced relation on the walls of said hopper, reversible power means having a double surface winding drum attached thereto mounted on said rear wall, a first pair of cables each dead-ended on one of said surfaces and oppositely wound thereon and thence reeved through certain of said fixed sheaves and certain of said arm sheaves to dead-end on said front wall, and a second pair of cables each deadended on the other of said surfaces and oppositely wound thereon and thence reeved through certain other fixed sheaves and certain other of said arm sheaves to deadend in a cable tightening mechanism mounted on said front wall, thereby upon rotation of said power means in one direction said gates will open and upon rotation of said power means in the opposite direction said gates will close.
2. In a wheeled vehicle, a main frame having a hopper mounted thereon, oppositely swinging bottom opening gates pivotally connected to said hopper, and a constant tension cable winding system for power opening and power closing said gates, said system comprising a double surface drum adapted for reversible rotation, a first pair of cables each dead-ended on one of said surfaces and oppositely wound thereon and thence associated with one of said gates, a second pair of cables each dead-ended on the other of said surfaces and oppositely wound thereon and thence associated with the other of said gates, and cable tightening means for maintaining said cables substantially taut at all times.
3. In a wheeled vehicle, a main frame having a hopper mounted thereon, oppositely swinging bottom opening gates pivotally connected to said hopper, and a constant tension cable winding system for power opening and power closing said gates, said cable winding system comprising reversible power means mounted on said hopper, a double winding drum driven by said power means and having two pairs of cables wound thereon, pivot arms secured to said gates and pivotally mounted on said hopper, sheave housings having sheaves mounted therein fixed on said hopper, and sheave housings having sheaves mounted therein fixed on said pivot arms, said cables being reeved between said drum and said sheaves so that upon rotation of said drum in one direction, said gates are opened and upon rotation of said drum in the opposite direction, said gates are closed.
References Cited in the file of this patent UNITED STATES PATENTS 118,557 Rousculp et a1. Aug. 29, 1871 865,708 Johnson Sept. 10, 1907 971,603 Goodwin Oct. 4, 1910 2,335,851 Fox et a1. Dec. 7, 1943 2,401,407 Benbow et a1. June 4, 1946
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Application Number | Priority Date | Filing Date | Title |
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US273575A US2700574A (en) | 1952-02-27 | 1952-02-27 | Cable operated bottom gate for a hopper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US273575A US2700574A (en) | 1952-02-27 | 1952-02-27 | Cable operated bottom gate for a hopper |
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US2700574A true US2700574A (en) | 1955-01-25 |
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US273575A Expired - Lifetime US2700574A (en) | 1952-02-27 | 1952-02-27 | Cable operated bottom gate for a hopper |
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Publication number | Priority date | Publication date | Assignee | Title |
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US2821433A (en) * | 1955-07-08 | 1958-01-28 | Cook Bros Equipment Co | Hopper dumping closure |
US9511929B2 (en) | 2011-12-21 | 2016-12-06 | Oren Technologies, Llc | Proppant storage vessel and assembly thereof |
USRE46334E1 (en) | 2012-07-23 | 2017-03-07 | Oren Technologies, Llc | Proppant discharge system and a container for use in such a proppant discharge system |
US9617066B2 (en) | 2011-12-21 | 2017-04-11 | Oren Technologies, Llc | Method of delivering, transporting, and storing proppant for delivery and use at a well site |
US9624030B2 (en) | 2014-06-13 | 2017-04-18 | Oren Technologies, Llc | Cradle for proppant container having tapered box guides |
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US9670752B2 (en) | 2014-09-15 | 2017-06-06 | Oren Technologies, Llc | System and method for delivering proppant to a blender |
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