US3847073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hay roll forming machine
Assignee: Unisys Corp
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Filing: 1973-04-24
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Granted: 1974-11-12
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Expires: 1993-04-24
Abstract
Abstract A machine to form compact rolls of hay of substantial size by picking up a swath or windrow of hay and the like from a field, engage it by cooperating upper and lower endless flexible aprons driven in suitable directions to coil the hay into a compact roll while supported upon floor means mounted stationarily in the bottom of the machine to effect baling of all the hay without loss upon the ground. When the roll type bale of hay reaches a predetermined diameter, the upper apron raises to stop driving the same and provide an exit and the lower apron assists in ejecting the bale onto the ground, or the machine can transport it to a desired location for discharge. The lower apron in particular has aggressive type lugs to insure positive engagement with the roll to rotate it relative to the floor means, and the discharge end of the floor means is arranged to positively withdraw the lugs from the roll except when discharge is to occur. When discharge is to occur the discharge end of the floor means is depressed to permit the lugs to continue to engage the roll to remove it from the machine.
Inventors
- 👤 M Hyman
- 👤 A Mast
- 👤 E Eggers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:24
CPC Classifications
A; A01; A01F; A01F15/00; A01F15/07; A01F2015/078; A01F2015/0795; A01F15/08; A01F15/18; A01F2015/183; A01F2015/186
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
315 words
A mobile hay roll-forming machine comprising in combination, a mobile frame, an endless apron in the lower portion of said frame having an upper course extending substantially horizontally, floor means supported beneath said upper course of said apron to support the same for movement thereover, means operable to move said upper course rearwardly in said machine, means to deliver a swath of agricultural product to the forward end of said upper course of said apron, upper roll-forming means in said machine operable to cooperate with said endless apron to form said swath of product into a roll, said endless apron comprising a plurality of endless flexible members spaced from each other transversely across said machine and the upper courses of said members being movable within a plane extending longitudinally of said machine relative to the direction of movement thereof along a field, upstanding lugs on said flexible members engageable with the lower surface of a roll of said product and operable to move the same rearwardly while said upper roll-forming means engages and moves the upper surface of said roll forwardly and thus revolves said roll about its axis while supported in said machine, a terminal supporting means extending rearwardly from the rearward end of said floor means, said means having slots therebetween through which said flexible members and the lugs thereon passes to disengage said roll, and means engaging said terminal supporting means and normally urging the same in a position to cause said flexible means and lugs thereon to pass through said slots therein as aforesaid but said means also being operable to depress said terminal supporting means when a roll is to be discharged therefrom and thereby cause said lugs on said flexible members to continue to be exposed and engage said roll substantially to the end of said terminal supporting means and thereby facilitate discharge of said roll from said machine.
Claim 2
Dependent Claim
315 words
A mobile hay roll-forming machine comprising in combination, a mobile frame, an endless apron in the lower portion of said frame having an upper course extending substantially horizontally, floor means supported beneath said upper course of said apron to support the same for movement thereover, means operable to move said upper course rearwardly in said machine, means to deliver a swath of agricultural product to the forward end of said upper course of said apron, upper roll-forming means in said machine operable to cooperate with said endless apron to form said swath of product into a roll, said endless apron comprising a plurality of endless flexible members spaced from each other transversely across said machine and the upper courses of said members being movable within a plane extending longitudinally of said machine relative to the direction of movement thereof along a field, upstanding lugs on said flexible members engageable with the lower surface of a roll of said product and operable to move the same rearwardly while said upper roll-forming means engages and moves the upper surface of said roll forwardly and thus revolves said roll about its axis while supported in said machine, a terminal supporting means extending rearwardly from the rearward end of said floor means, said means having slots therebetween through which said flexible members and the lugs thereon passes to disengage said roll, and means engaging said terminal supporting means and normally urging the same in a position to cause said flexible means and lugs thereon to pass through said slots therein as aforesaid but said means also being operable to depress said terminal supporting means when a roll is to be discharged therefrom and thereby cause said lugs on said flexible members to continue to be exposed and engage said roll substantially to the end of said terminal supporting means and thereby facilitate discharge of said roll from said machine.
Claim 3
Dependent Claim
149 words
The machine according to claim 1 in which said slotted terminal supporting means comprise a plurality of plates spaced apart in a direction transversely across the lower portion of said mobile frame, the spaces between said plates comprising said slots through which said flexible members and lugs thereon of said endless apron pass as aforesaid, said means engaging said terminal supporting means comprising spring means and the weight of a roll of said agriculture product of maximum size being adequate to overcome the tension of said springs and depress said plates incident to said rolls being discharged from the rearward end of said terminal supporting means to effect said exposure of said lugs on said flexibLe members for continued engagement with the lower surface of a roll of said agriculture product and thereby insure movement of the same rearwardly for discharge from the rearward end of said endless apron.
Claim 4
Dependent Claim
50 words
The machine according to claim 2 in which said flexible members comprise chains and said machine further including a floor panel fixedly positioned below said upper courses of said chains to support the same slideably, and said yieldably supported plates extending rearward from the rear end of said floor panel.
Claim 5
Dependent Claim
52 words
The machine according to claim 2 further including means extending commonly beneath all of said plates and connecting the same to cause movement thereof in unison when moved to depress the same and said spring means simultaneously restoring all of said plates to normal position after a roll has been discharged therefrom.
Claim 6
Dependent Claim
23 words
The machine according to claim 4 further including stop means engageable by said connecting means and operable to limit the depressing movement thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |