Patent US3590927A successfully refreshed from Google Patents.
US3590927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting for sod-cutting machine
Assignee: Brouwer Turf Equipment Ltd
•
Filing: 1969-09-29
•
Granted: 1971-07-06
•
Expires: 1989-09-29
Abstract
Abstract A sod cutter having a vibrating sod undercutting blade. Several thin, flat guide strips, connected to the rear of the blade, extend rearwardly to the front end of a conveyor mounted behind the blade, to guide cut sod from the blade onto the conveyor. A cutoff blade, to cut sod to length, is periodically driven into the ground by springs. A tiltable mounting permits the cutoff blade, as it is slowly raised between strokes by a spiral cam, to tilt rearwardly during times when it drags along the ground. The sod cutter is guided over the ground by a roller and is mounted on a support vehicle at two pivot points spaced lengthwise along and centrally located widthwise of the cutter. This allows the cutter to rock laterally with its roller independently of the support vehicle, to adjust to local variations in the surface traversed.
Inventors
- 👤 Gerardus Johannes Brouwer
- 👤 John Van Dyken
- 👤 Klaas Oussoren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:07
CPC Classifications
A; A01; A01G; A01G20/00; A01G20/10; A01G20/12; A01G20/15
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
355 words
A sod-cutting machine adapted for travel forwardly along a path of travel and for cooperation with a support and propulsion vehicle, said sod-cutting machine comprising: a frame; a cutting blade; means mounting said blade to said frame in an orientation across said path of travel for said cutting blade to undercut a strip of sod mounting said frame on said support vehicle; means for cutting the edges of said strip of sod; a conveyor mounted on said frame for receiving cut sod and conveying the same upwardly and away from said cutting blade; and mounting means for mounting said frame on said support vehicle, said mounting means comprising a. first joint means mounted adjacent the rear of said frame and for connection to said support vehicle, for supporting the rear of said frame on said vehicle, b. second joint means mounted forwardly of said first joint means and also for connection to said support vehicle, for restricting lateral movement of the front of said frame relative to said vehicle, c. said first and second joint means including means enabling tilting of said frame from side to side about a vertical plane extending parallel to said path of travel and substantially through the center of said cutting blade, thereby causing sideto-side tilting of said cutting blade, d. said first and Second joint means further including means enabling pivoting of said frame about a horizontal axis through said first joint means and transverse to said path of travel; and guide means mounted on said frame forwardly of said cutting blade for normally supporting the forward end of said frame and for guiding said frame and said cutting blade over the contours of the ground over which said machine travels, said guide means extending on either side of said vertical plane and being substantially centered about said vertical plane, so that when one side of said guide means is lifted by the ground over which said machine is travelling, the corresponding side of said frame and hence of said cutting blade will also lift, thus to improve the uniformity of thickness of sod cut by said cutting blade.
Claim 2
Dependent Claim
355 words
A sod-cutting machine adapted for travel forwardly along a path of travel and for cooperation with a support and propulsion vehicle, said sod-cutting machine comprising: a frame; a cutting blade; means mounting said blade to said frame in an orientation across said path of travel for said cutting blade to undercut a strip of sod mounting said frame on said support vehicle; means for cutting the edges of said strip of sod; a conveyor mounted on said frame for receiving cut sod and conveying the same upwardly and away from said cutting blade; and mounting means for mounting said frame on said support vehicle, said mounting means comprising a. first joint means mounted adjacent the rear of said frame and for connection to said support vehicle, for supporting the rear of said frame on said vehicle, b. second joint means mounted forwardly of said first joint means and also for connection to said support vehicle, for restricting lateral movement of the front of said frame relative to said vehicle, c. said first and second joint means including means enabling tilting of said frame from side to side about a vertical plane extending parallel to said path of travel and substantially through the center of said cutting blade, thereby causing sideto-side tilting of said cutting blade, d. said first and Second joint means further including means enabling pivoting of said frame about a horizontal axis through said first joint means and transverse to said path of travel; and guide means mounted on said frame forwardly of said cutting blade for normally supporting the forward end of said frame and for guiding said frame and said cutting blade over the contours of the ground over which said machine travels, said guide means extending on either side of said vertical plane and being substantially centered about said vertical plane, so that when one side of said guide means is lifted by the ground over which said machine is travelling, the corresponding side of said frame and hence of said cutting blade will also lift, thus to improve the uniformity of thickness of sod cut by said cutting blade.
Claim 3
Dependent Claim
42 words
A sod-cutting machine according to claim 1 wherein said conveyor extends upwardly and rearwardly from said cutting blade and said mounting means includes means for adjusting the height of the rear of said frame thus to adjust the slope of said conveyor.
Claim 4
Dependent Claim
34 words
A sod-cutting machine according to claim 1 wherein said guide means comprises a roller mounted on said frame rearwardly of said second joint means, said cutting blade being mounted substantially immediately behind said roller.
Claim 5
Dependent Claim
144 words
said mounting means comprising a. first joint means located adjacent the rear of said frame and connecting said frame with said support vehicle, for supporting the rear of said frame on said vehicle, b. second joint means located forwardly of said first joint means and also connecting said frame with said support vehicle, for restricting lateral movement of the front of said frame relative to said vehicle, c. said first and second joint means including means enabling tilting of said frame from side to side about a vertical plane extending parallel to said path of travel and substantially through the center of said cutting knife, thereby causing side-to-side tilting of said cutting blade d. said first and second joint means further including means enabling pivoting of said frame about a horizontal axis through said first joint means and transverse to said path of travel;
Claim 6
Dependent Claim
144 words
said mounting means comprising a. first joint means located adjacent the rear of said frame and connecting said frame with said support vehicle, for supporting the rear of said frame on said vehicle, b. second joint means located forwardly of said first joint means and also connecting said frame with said support vehicle, for restricting lateral movement of the front of said frame relative to said vehicle, c. said first and second joint means including means enabling tilting of said frame from side to side about a vertical plane extending parallel to said path of travel and substantially through the center of said cutting knife, thereby causing side-to-side tilting of said cutting blade d. said first and second joint means further including means enabling pivoting of said frame about a horizontal axis through said first joint means and transverse to said path of travel;
Claim 7
Dependent Claim
140 words
Sod-harvesting apparatus comprising A support and propulsion vehicle for supporting a sod-cutting machine and for propelling the latter along a path of travel 1.said sod-cutting machine adapted for travel forwardly along said path of travel and comprising: a frame, a cutting blade, means mounting said blade to said frame in an orientation across said path of travel for said cutting blade to undercut a strip of sod mounting means for mounting said sod-cutting machine on said support vehicle, means for cutting the edges of said strip of sod, a conveyor mounted on said frame for receiving cut sod and conveying the same upwardly and away from said cutting blade, 2.A support and propulsion vehicle for supporting said sod-cutting machine and for propelling the latter along said path of travel, and mounting means for mounting said frame on said support vehicle,
Claim 8
Dependent Claim
140 words
Sod-harvesting apparatus comprising A support and propulsion vehicle for supporting a sod-cutting machine and for propelling the latter along a path of travel 1.said sod-cutting machine adapted for travel forwardly along said path of travel and comprising: a frame, a cutting blade, means mounting said blade to said frame in an orientation across said path of travel for said cutting blade to undercut a strip of sod mounting means for mounting said sod-cutting machine on said support vehicle, means for cutting the edges of said strip of sod, a conveyor mounted on said frame for receiving cut sod and conveying the same upwardly and away from said cutting blade, 2.A support and propulsion vehicle for supporting said sod-cutting machine and for propelling the latter along said path of travel, and mounting means for mounting said frame on said support vehicle,
Claim 9
Dependent Claim
52 words
said sod-cutting machine further including a guide roller, and means rotatably mounting said roller on said frame substantially immediately forwardly of said cutting blade with said roller oriented transverse to said path of travel and substantially centered about said vertical plane, said roller extending substantially across the width of said cutting blade,
Claim 10
Dependent Claim
52 words
said sod-cutting machine further including a guide roller, and means rotatably mounting said roller on said frame substantially immediately forwardly of said cutting blade with said roller oriented transverse to said path of travel and substantially centered about said vertical plane, said roller extending substantially across the width of said cutting blade,
Claim 11
Dependent Claim
157 words
A sod-cutting machine according to claim 4 wherein said support and propulsion vehicle is a tractor having front and rear wheels, said first joint means is a Universal joint located adjacent a said rear wheel, and said second joint means comprises a rod extending transversely of said path of travel between said frame and said vehicle, first pivot means connecting one end of said rod to the front of said frame for pivotal movement of said rod in a vertical plane transverse to said path of travel, second pivot means pivotally connecting the other end of said rod to said tractor adjacent a said front wheel of said tractor to permit said movement of said rod in said vertical plane transverse to said path of travel, said first and second pivot means permitting limited movement of said rod in a direction parallel to said path of travel to allow vertical movement of the front of said frame.
Claim 12
Dependent Claim
68 words
said machine and said vehicle together including lifting means connected between said vehicle and said frame at a position on said frame forwardly of said first joint means, for raising the front end of said frame to lift said guide roller and said cutting blade from the ground, whereby said sod-cutting machine may be moved by said vehicle without said cutting blade or guide roller contacting the ground.
Claim 13
Dependent Claim
68 words
said machine and said vehicle together including lifting means connected between said vehicle and said frame at a position on said frame forwardly of said first joint means, for raising the front end of said frame to lift said guide roller and said cutting blade from the ground, whereby said sod-cutting machine may be moved by said vehicle without said cutting blade or guide roller contacting the ground.
Claim 14
Dependent Claim
68 words
A sod-cutting machine according to claim 4 wherein said conveyor extends upwardly and rearwardly from said cutting blade, and said first joint means comprises a bracket connected to said frame adjacent the rear of said conveyor, said bracket extending across said conveyor at a position above sod travelling up said conveyor, and connecting means including a universal joint adapted to be connected between said bracket and said vehicle.
Claim 15
Dependent Claim
56 words
A sod-harvesting apparatus according to claim 4 wherein said means for cutting the edges of said sod is constituted by a pair of vertically oriented side cutting knives, one fixed to each side of said cutting blade, said side cutting knives extending forwardly from said cutting blade, said roller being located between said side cutting knives.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |