|Publication number||US2869708 A|
|Publication date||Jan 20, 1959|
|Filing date||Aug 18, 1955|
|Priority date||Aug 18, 1955|
|Publication number||US 2869708 A, US 2869708A, US-A-2869708, US2869708 A, US2869708A|
|Inventors||Nesseth Clifford A|
|Original Assignee||Nesseth Clifford A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (27), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Jan. 20,1959 7 c. A. NESSETH 2,869,708
BALE CONVEYER Filed Aug. 18, 1955 4 Sheets-Sheet l INVENGGET %%WM ZZ' ATTORNEY Jan. 20, 1959 c. A. NESSETH 2,869,708
BALE CONVEYER Filed Aug. 18, 1955 4 Sheets-Sheet 2 INVENTOR.
We/4W ATTORNEY Jan. 20, 1959 c. A. NESSETH 2,869,708
BALE CONVEYER Filed Aug. 18, 1955 4 Shets-Sheet 3 EL: 5' E INVENTOR.
MTORNE Jan. 20, 1959 c. A. NESSETH 2,369,708
BALE CONVEYER Filed Aug. 18, 1955 4 Sheets-Sheet 4 l4: F -l5 INVENTOR.
ATTDRNEY United States Patent 2,869,708 BALE CONVEYER Clifford A. Nesseth, Brimley, Mich. Application August 18, 1955, Serial No. 529,291
2 Claims. (Cl. 198-158 This invention relates to a new and useful improvement in a portable conveyor for conveying various articles such as bales and the like. It is particularly useful in conveying baled hay from the ground to a hay mow or loft.
It is an object of the present invention to provide a conveyor of this class which will be simple in structure, economical in manufacture, durable, compact, light, easily transported from place to place, and highly eflicient in use.
Another object of the invention is the provision, in a conveyor of this class, of conveying arms which are automatically moved to conveying position when travelling upwardly and which, when reaching the top of the upper travel, are moved to non-conveying position.
Other objects will appear hereinafter.
It is recognized that various modifications and changes may be made in the detail or structure illustrated without departing from theinvention, and it is intended that the present disclosure shall be considered to be but the end thereof. 1
Fig. 4 is a perspective view of the elevating arm construction used in the inveniton.
Fig. 5 is a fragmentary perspective view of the lower end thereof.
Fig. 6 is a view similar to Fig. 5 showing the elevating arms in a different position.
Fig. 7 is a fragmentary perspective view illustrating one of the cross bars used in the structure.
Fig. 8 is a fragmentary perspective view of a cross bar of the invention.
Fig. 9 is an elevational view, in fragment, with parts broken away and shown in section, of the elevator arm trip.
Fig. 10 is a sectional view taken on line 10-10 of Fig. 1 or Fig. 11.
Fig. 11 is an elevational view of a wheel used in the invention.
Fig. 12 is a fragmentary sectional view taken on line 12-12 of Fig. l0.
Fig. 13 is a sectional view through one of the nodes mounted on the conveyor belt.
Fig. 14 is an elevational view of the trip arm used in the invention.
Fig. 15 is a view similar to Fig. 14 taken at right angles thereto.
Fig. 16 is an elevational view of the conveyor arm used in the invention.
In the drawings there is shown an illustrative embodiment which comprises a pair of vertically disposed, inwarclly faced, spaced apart channels 16 and 11 which ICC form the front of the main structure for the elevator. As shown in Fig. 2 these channels 10 and 11 are rearwardly turned at their lower ends and form the angularly extended portions 14 which engage and are secured to the uprights or supports 12 and 13 respectively. Cross bars 15 (Fig. 6) serve to connect the members 1t) and 11 to the aligning members 12 and 13.
One side of the members 10 and 11 is extended in curve formation to provide the cam portion 16 as shown in Fig. 2. The members 10 and 13 are secured together at their upper ends by the plate 26. The members 11 and 12 are secured together at their upper ends bythe means of plate 27.
The lower end of the elevator construction is provided with a pair of plates 17 and 18 which are fixedly secured to the outer sides of each pair of channels and angle irons 10 and 12 and 11 and 13 respectively.
An idler shaft 19 is rotatively mounted on the inner sides of the plates 17 and 18 and carries, fixedly mounted thereon, a pair of spaced idler wheels 2d and 21. Journalled on the plates 26 and 27 and extended in alignment with the axle or shaft 19, is a drive shaft 25 on which is fixedly mounted the wheels or pulleys 29 and 30 each of which is provided with a plurality of notches or pockets 22 in the periphery 31 thereof, these pockets being circumferentially spaced. As shown in Fig. 2, there is a pulley 32 fixedly mounted on the shaft 28 which is driven by the belt 33 passing around the pulley 34 fixedly mounted on the shaft 35 of a motor 36. This motor 36 is mounted on the support 37 which is fixed in any suitable manner to the elevator main frame construction.
As shown in Fig. 3 an abutment in the form of a crossbar 33 extends transversely from side to side. This crossbar is secured to the plates 26 and 27 as well as to the camforming portions 16 adjacent to the ends of these cam which are rotatably mounted the novel lifting arms d1,
which extend outwardly and forwardly of the elevator when moving upwardly. Mounted on the stub shafts 4%, against the outer face of each of the lifting arms 41, is a roller 42 which is adapted to roll inside the channels In and 11. Each of the lifting arms 41 is provided .with an upwardly directed extension or yoke 43, on the upper end of which is rotatably mounted a roller 44, adapted to engage inside the channels 10 and 11. As shown in Fig. 2, the lifting arms 41 are arranged in aligned pairs, each pair of spaced apart lifting arms being adapted, while traveling upwardly, to engage the lower side of a bale of hay 45, or the like, and lift it upwardly.
Connecting the standards 10 and 13 and the standards 11 and 12 respectively are angle irons 46, Fig. 7, having the doubled-over tongue 46a at each of their ends. Resting upon these angle irons 46, and engaging at the under faces by the doubled-over tongue 46a, are supporting arms 47 and 48, Figs. 1 and 2, which extend forwardly from the standards It and 11 and serve as a supporting platform for a bale 45 or the like.
An angle iron 49, Figs. 6 and 8, is secured to the standards 12 and 13 and the lower plate 4% of this angle iron engages the upper face of the rear ends of the supporting arms 47 and 48, and the downwardly projecting lip 49a, as shown in Fig. 8, engages the end. face of each of the arms 47 and 43.
Each of the endless cables 23 and 24, is provided with a button or knob 50 which engages or rides in the pockets or recesses 51 formed in the pulleys 29 and 39. Conse- U quently, as these pulleys 29 and 30 are rotated by means of the shaft 28 these endless cables 23 and 24 are caused to travel upwardly at the forward end.
In the use of the invention, the bale 45, which is to be lifted upwardly to a raised stored position, would first be placed on the loading arms 5! and 4S, and, as the drive motor 36 drives the endless conveyor by means of the drive pulley 34, belt 33, drive pulley 32-and drive spools 29 and Bil, a pair of the lifting arms 41 will engage the lower side of the bale 45 and lift it upwardly When L that portion of the endless conveyor carrying the bale reaches the top of the elevator, the bale 45 will be discharged at the desired level. It will be noted that, as the lifting arms advance up the front of the elevator, they will be held in an outwardly extended position by means of the rollers and M engaging in the inwardly facing flanges of the channels lid and 11.
When the lifting arms reach the top of the elevator, the rollers 44 will ride out of the curved angle guides 16, as shown in Fig. 3, and the lifting arm portion 41 will engage the front side of the cross-bar 33, and be deflected downwardly and will rotate by gravity and assume a position as shown in Fig. 2 The lifting arms will remain in the position shown in Fig. 2 until they reach the bottom of the elevator, at which point the rollers 44 engage the lower curved angle guides 15 which action causes the lifting arms to rotate into an outwardly extended position, ready for engaging another bale 45.
What is claimed is:
l. A vertical device for elevating hay bales or the like comprising a lower pulley, an upper pulley disposed over said lower pulley, means mounting said pulleys for rotation on spaced parallel axes and in substantially the same vertical plane, an endless member trained around said pulleys and having a forward outer reach and a rearward inner reach, a lifting'arrn, means pivotally connecting said lifting arm to said endless member, means for driving one of said pulleys and said endless member whereby said lifting arm moves upwardly on said outer reach and downwardly on said inner reach, means for constraining said lifting arm to extend generally perpendicular to said endless number when the arm is moving upwardly, and until it passes beyond a given point of said upper pulley, an abutment suppo-rted'adjacent said uper pulley for engagement by said lifting arm after it has passed said given point for deflecting said lifting arm forwardly and downwardly as it travels around said upper inner and outer reaches, and means adjacent thefbottom pulley from said outer to said inner reach, said lifting arm hanging downwardly and generally parallel to said inner reach as it moves downwardly on the inner reach, and means adjacent the bottom of the conveyor to swing said lifting arm forwardly and upwardly from said parallel extension to said perpendicular extension as the lifting arm moves from said inner to said outer reach.
2. A vertical device for elevating hay bales or the like comprising a lower pulley, an upper pulley disposed directly over said lower pulley, means mounting said pulleys for rotation on spaced parallel axes and in substantially the same vertical plane, an endless member trained around said pulleys and having a forward outer reach and a rearward inner reach,-a lifting arm, means pivotally connecting one end of said lifting arm to said endlessmember, means for driving one of said pulleys and said endless member whereby said lifting arm moves upwardly on said outer reach and downwardly on said innerrreach, means for constraining said lifting arm to extend generally perpendicular to said endless member when the arm is moving upwardly and until it passes over said upper pulleyto a point rearwardly of a vertical plane including the rotational axis of the upper pulley, afixed abutment supported adjacent 'said upper pulley to be en? gaged by said lifting arm after it has passed said point, said lifting arm engaging said abutment as it travels around said upper pulley from said outer to said inner reach and being deflected forwardly and downwardly thereby, said lifting arm hanging downwardly and generally parallel to said inner reach as it moves downwardly on the inner reach, the end of said lifting arm remote from said one end being disposed between said of the conveyor to swing saidlifting arm forwardly and upwardly from said parallel extension to said per-pen: dicular extension as the lifting arm moves from said in? ner to said outer reach.
References Cited in the file of this patent UNITED STATES PATENTS t 214,233 Bates Apr. 15, 1879 661,136 Ardell 'Nov. 6,1900 826,702 Younkman July 24; 1906 946,232 Snyder Jan. 11, 1910 1,506,843 Kornarnisky Sept. 2, 1924 2,747,724 Kornylak May 29, 1956
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|U.S. Classification||198/802, 198/801|
|International Classification||A01D87/00, A01D87/12|