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US3850419A Expired / Lapsed US ⏱️ 0.0 years remaining

Tractor splitter

Assignee: Individual
•
Filing: 1973-04-05
•
Granted: 1974-11-26
•
Expires: 1993-04-05
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Abstract

Abstract For supporting a tractor when it is split at its midsection, a first jack having at least a tricycle-wheeled base is provided with a vertically adjustable support that can be elevated by the jack to take the weight of the forward part of said midsection, and a similar, second jack can take the weight of the rearward part of said midsection. To ensure that the first jack will roll stably with the front wheels of the tractor, the base of the jack is connected, through a hinge having a horizontal axis, to a forwardly extending arm along which a transverse yoke is adjustably positioned, the yoke carrying at opposite sides of the arm a pair of uprights that are adjustably positioned along the yoke and are connectable at their upper ends to the frame of the tractor between its front wheels. To ensure similar stability of the second jack, its base is connected, through a hinge having a horizontal axis, to a rearwardly extending arm along which a coupler is adjustably positioned, the coupler extending upwardly for connection to the tractor drawbar.

Inventors

  • 👤 G Craig

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:08
CPC Classifications
B; B66; B66F; B66F5/00

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 190 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor, the first and second jacks being independently adjustable to hold the forward and rearward parts of said midsection at exactly the same elevation ensuring perfect alignment of said forward and rearward parts, and means extending between the bases of the jacks and the supports to lock the supports in positions to which they have been elevated by the jacks.
Claim 2
Dependent Claim 190 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor, the first and second jacks being independently adjustable to hold the forward and rearward parts of said midsection at exactly the same elevation ensuring perfect alignment of said forward and rearward parts, and means extending between the bases of the jacks and the supports to lock the supports in positions to which they have been elevated by the jacks.
Claim 3
Dependent Claim 226 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, and second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor, the first and second jacks being independently adjustable to hold the forward and rearward parts of said midsection at exactly the same elevation ensuring perfect alignment of said forward and rearward parts, the base of each jack having wheels at either side of and forwardly and rearwardly of the vertical axis of the jack to stably support the jack, and the connecting means extending from the jack being connected to and transmitting forces to the base of the jack close to its wheel axes so as to impart little toppling moment to the jack.
Claim 4
Dependent Claim 226 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, and second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor, the first and second jacks being independently adjustable to hold the forward and rearward parts of said midsection at exactly the same elevation ensuring perfect alignment of said forward and rearward parts, the base of each jack having wheels at either side of and forwardly and rearwardly of the vertical axis of the jack to stably support the jack, and the connecting means extending from the jack being connected to and transmitting forces to the base of the jack close to its wheel axes so as to impart little toppling moment to the jack.
Claim 5
Dependent Claim 76 words
Apparatus as claimed in claim 1, wherein the first connecting means comprises an arm extending forwardly from the wheeled base of the first jack to transmit forces close to the wheel axes of the base so as to exert little toppling moment to the first jack, and a yoke transverse to the arm and having uprights at opposite sides of the arm and connectable to transversely spaced apart points of said front part of the tractor.
Claim 6
Dependent Claim 34 words
Apparatus as claimed in claim 3, wherein the arm is hinged about a horizontal axis to the wheeled base of the first jack and is swingable in a vertical plane clear of the ground.
Claim 7
Dependent Claim 28 words
Apparatus as claimed in claim 4, wherein the position of the yoke along the arm is adjustable and the positions of the uprights along the yoke are adjustable.
Claim 8
Dependent Claim 252 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, and second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor; the first connecting meaNs comprising an arm extending forwardly from the wheeled base of the first jack so as to exert little toppling moment thereon, and a yoke transverse to the arm and having uprights at opposite sides of the arm and connectable to transversely spaced apart points of said front part of the tractor; the arm being hinged about a horizontal axis to the base of the first jack; the position of the yoke along the arm being adjustable and the positions of the uprights along the yoke being adjustable; the uprights being concave at their upper ends for engaging the tractor frame, and including flexible means that can be looped over the frame to fasten the uprights thereto.
Claim 9
Dependent Claim 252 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, and second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor; the first connecting meaNs comprising an arm extending forwardly from the wheeled base of the first jack so as to exert little toppling moment thereon, and a yoke transverse to the arm and having uprights at opposite sides of the arm and connectable to transversely spaced apart points of said front part of the tractor; the arm being hinged about a horizontal axis to the base of the first jack; the position of the yoke along the arm being adjustable and the positions of the uprights along the yoke being adjustable; the uprights being concave at their upper ends for engaging the tractor frame, and including flexible means that can be looped over the frame to fasten the uprights thereto.
Claim 10
Dependent Claim 75 words
Apparatus as claimed in claim 1, wherein the second connecting means comprises an arm hinged to and extending rearwardly from the wheeled base of the second jack to transmit forces close to the wheel axes of the base so as to exert little toppling moment to the second jack, the arm being swingable in a vertical plane clear of the ground, and a coupler extending upwardly from the arm and connectable to the tractor drawbar.
Claim 11
Dependent Claim 208 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, and second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor; the second connecting means comprising an arm extending rearwardly from the base of the second jack so as to exert little toppling moment thereon, and a coupler extending upwardly from the arm and connectable to the tractor drawbar; the arm being hinged about a horizontal axis to the base of the second jack; the coupler comprising a stud hinged to the arm and a brace adjustable to fix the angle of the stud to the arm.
Claim 12
Dependent Claim 208 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, and second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor; the second connecting means comprising an arm extending rearwardly from the base of the second jack so as to exert little toppling moment thereon, and a coupler extending upwardly from the arm and connectable to the tractor drawbar; the arm being hinged about a horizontal axis to the base of the second jack; the coupler comprising a stud hinged to the arm and a brace adjustable to fix the angle of the stud to the arm.
Claim 13
Dependent Claim 17 words
Apparatus as claimed in claim 7, wherein the position of the coupler along the arm is adjustable.
Claim 14
Dependent Claim 58 words
Apparatus as claimed in claim 1, wherein each support is adjustable in height relative to the jack in addition to being elevatable by the jack, each support comprising a generally horizontal plate substantially centered above the jack and adapted to contact the underside of and to receive the weight of one of said parts of the tractor midsection.
Claim 15
Dependent Claim 238 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having at least a tricycle-wheeled base with wheels located around the first jack and having a support elevatable to take the weight of the forward part of said midsection, a second jack having at least a tricycle-wheeled base with wheels located around the second jack and having a support elevatable to take the weight of the rearward part of said midsection, the supports being adjustable in height in addition to being elevatable by the jacks, a first arm hinged about a horizontal axis to the base of the first jack and extending forwardly from the first jack, a yoke transverse to the first arm and adjustable therealong, uprights on the yoke at opposite sides of the arm and adjustable along the yoke and connectable at their upper ends to the tractor between its front wheels, a second arm hinged about a horizontal axis to the base of the second jack and extending rearwardly from the second jack, and a coupler extending upwardly from the second arm, the position of the coupler along the second arm being adjustable and the coupler being connectable to the tractor drawbar, the jacks and their supports being independently adjustable to hold the forward and rEarward parts of said midsection at exactly the same elevation ensuring perfect alignment of said forward and rearward parts.
Claim 16
Dependent Claim 238 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having at least a tricycle-wheeled base with wheels located around the first jack and having a support elevatable to take the weight of the forward part of said midsection, a second jack having at least a tricycle-wheeled base with wheels located around the second jack and having a support elevatable to take the weight of the rearward part of said midsection, the supports being adjustable in height in addition to being elevatable by the jacks, a first arm hinged about a horizontal axis to the base of the first jack and extending forwardly from the first jack, a yoke transverse to the first arm and adjustable therealong, uprights on the yoke at opposite sides of the arm and adjustable along the yoke and connectable at their upper ends to the tractor between its front wheels, a second arm hinged about a horizontal axis to the base of the second jack and extending rearwardly from the second jack, and a coupler extending upwardly from the second arm, the position of the coupler along the second arm being adjustable and the coupler being connectable to the tractor drawbar, the jacks and their supports being independently adjustable to hold the forward and rEarward parts of said midsection at exactly the same elevation ensuring perfect alignment of said forward and rearward parts.
Claim 17
Dependent Claim 238 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor, the first and second jacks being independently adjustable to hold the forward and rearward parts of said midsection at exactly the same elevation ensuring perfect alignment of said forward and rearward parts, each support being adjustable in height relative to the jack in addition to being elevatable by the jack, each support comprising a generally horizontal plate substantially centered above the jack and adapted to contact the underside of and to receive the weight of one of said parts of the tractor midsection, and guides extending between the bases of the jacks and the supports to restrain the supports including said plates against other than vertical movement.
Claim 18
Dependent Claim 238 words
Apparatus for supporting a tractor when split at its midsection between its front and rear wheels, comprising a first jack having a wheeled base and having a support elevatable to take the weight of the forward part of said midsection, a second jack having a wheeled base and having a support elevatable to take the weight of the rearward part of said midsection, first connecting means extending forwardly from the first jack and firmly connectable to a front part of the tractor to ensure that the first jack stably rolls with the front wheels of the tractor, second connecting means extending rearwardly from the second jack and firmly connectable to a rear part of the tractor to ensure that the second jack stably rolls with the rear wheels of the tractor, the first and second jacks being independently adjustable to hold the forward and rearward parts of said midsection at exactly the same elevation ensuring perfect alignment of said forward and rearward parts, each support being adjustable in height relative to the jack in addition to being elevatable by the jack, each support comprising a generally horizontal plate substantially centered above the jack and adapted to contact the underside of and to receive the weight of one of said parts of the tractor midsection, and guides extending between the bases of the jacks and the supports to restrain the supports including said plates against other than vertical movement.

References Cited (Backward Citations)

US1211373A Cited
US1241418A Cited
US1611366A Cited
US2058691A Cited
US2904308A Cited
US3433447A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-25 1978-05-27 1978-11-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-25 1982-05-27 1982-11-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-25 1986-05-27 1986-11-26 $7700.00 Window Closed / Lapsed

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