US3848526A
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: 1974-11-19
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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, an upper frame which supports the upper apron raises to carry the upper apron with it and cause clutch means to function and stop driving the upper apron and provide an exit for the formed roll at the rear end of the machine, whereby the lower apron continues to move rearwardly to assist in ejecting the bale onto the ground, or the machine can transport it to a desired location for discharge, if desired.
Inventors
- 👤 A Mast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:17
CPC Classifications
A; A01; A01F; A01F15/00; A01F15/07; A01F15/08; A01F15/0875; A01F15/0883; A01F2015/078; A01F2015/0795
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
196 words
A mobile hay roll-forming machine comprising in combination, a base frame having wheels for mobility, lower flexible propelling means extending transversely across said base frame, means to drive said propelling means to move the upper course across said base frame, upper endless flexible apron means, upper frame means supporting said upper apron means to position the lower course thereof above said lower propelling means and spaced therefrom, means to drive said upper apron to move the lower course thereof in opposition to said lower propelling means to form a coiled roll of hay and the like therebetween by engagement with said opposing movable means, means adapted to elevate the rearward portion of said upper frame means relative to said base frame to permit discharge of a formed roll of hay and the like from the rearward end of said machine, and means interconnected to said drive means for said upper apron and said frame to automatically discontinue the driving of said upper apron when said rearward portion has been elevated while the driving means for said lower propelling means continues to move the same rearwardly to effect discharge of said roll of hay and the like.
Claim 2
Dependent Claim
196 words
A mobile hay roll-forming machine comprising in combination, a base frame having wheels for mobility, lower flexible propelling means extending transversely across said base frame, means to drive said propelling means to move the upper course across said base frame, upper endless flexible apron means, upper frame means supporting said upper apron means to position the lower course thereof above said lower propelling means and spaced therefrom, means to drive said upper apron to move the lower course thereof in opposition to said lower propelling means to form a coiled roll of hay and the like therebetween by engagement with said opposing movable means, means adapted to elevate the rearward portion of said upper frame means relative to said base frame to permit discharge of a formed roll of hay and the like from the rearward end of said machine, and means interconnected to said drive means for said upper apron and said frame to automatically discontinue the driving of said upper apron when said rearward portion has been elevated while the driving means for said lower propelling means continues to move the same rearwardly to effect discharge of said roll of hay and the like.
Claim 3
Dependent Claim
132 words
The machine according to claim 1 in which said means to drive said upper apron comprises driving and driven sheave means, belt means extending around said sheaves loosely, belt tightening means movable relative to said belt means in opposite directions respectively to effect driving relationship between the sheaves and interrupt said driving relationship, and means interconnected to and between said belt tightening means and said upper frame means and adapted to move said belt tightening means in a direction to tighten said belt means when said upper frame means is in operative position with respect to said base frame and relax said belt tightening means when said upper frame means is raised to discharge a roll of hay and the like from the machine and thereby stop movement of said upper apron.
Claim 4
Dependent Claim
78 words
The machine according to claim 2 further including means to pivotally connect one end of said upper frame means to a portion of said base frame, and said means interconnected to said belt tightening means and said upper frame comprising a cable extending between means on said upper frame means and said belt tightening means, said means on said upper frame means being arranged to move said cable incident to said upper frame means being raised and lowered.
Claim 5
Dependent Claim
140 words
The machine according to claim 3 in which said means on said upper frame arranged to move said cable comprising an arm projecting upwardly when said upper frame is in operative position and one end of said cable being interconnected to the outer end thereof, and said belt tightening means comprising a pivoted lever having tightening sheave means on one end engageable with said belt means to depress a portion of one course thereof to tighten the same around said driving and driven sheave means, the other end of said lever having the other end of said cable connected thereto, whereby when said upper frame is moved to roll discharging position, the outer end of said arm is lowered and thereby relaxes tension upon said pivoted lever to disrupt tensioning engagement of said tightening sheave means upon said belt means.
Claim 6
Dependent Claim
32 words
The machine according to claim 4 further including a tension spring connected between said arm and the end of said cable interconnected thereto to provide limited yieldability in said belt tightening mechanism.
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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |