US2450905A - Bulldozer attachment for jeeps - Google Patents
Bulldozer attachment for jeeps Download PDFInfo
- Publication number
- US2450905A US2450905A US621703A US62170345A US2450905A US 2450905 A US2450905 A US 2450905A US 621703 A US621703 A US 621703A US 62170345 A US62170345 A US 62170345A US 2450905 A US2450905 A US 2450905A
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- instrumentality
- vehicle
- attachment
- carried
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-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/7622—Scraper equipment with the scraper blade mounted on a frame to be hitched to the tractor by bars, arms, chains or the like, the frame having no ground supporting means of its own, e.g. drag scrapers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S56/00—Harvesters
- Y10S56/11—Hydraulic
Definitions
- My invention relates to new and useful improvements in bulldozer attachments for jeeps and other similar wheeled vehicles.
- a further object of my invention is to design a self-contained bulldozer-attachment, which re- I quires no additionof any special cooperative flttings to the jeep.
- a still further object is to design a bulldozer, the blade of which slides up and'down, as contrasted with the conventional mounting of the blade on two pivoted push-arms.
- Figure 1 is a plan view of a jeep with my attachment attached.
- Figure 2 is a side elevation of the same, partly in section, taken along the lines 2-2 of Figure 1.
- Figure 3 is a slightly enlarged front elevation of the same, taken along the lines 3-3 of Figure 2.
- Figure '4 is a slightly enlarged rear elevation of the locking device of my attachment, taken along.
- FIG. 5 is a side elevation of my attachment
- Figure 6 is-a considerably enlarged side elevation of a second variant of my elevating mechanism, with the blade in section.
- Figure 7 is a plan view of this elevating mechanism, with part of the blade and jeep showing, all taken along the lines 1-1 of Figure 6.
- Figure 8 is a front elevationof this elevating taken along thelines 88 of Figure 6.
- 11 is a conventional jeep, or other vehicle, having a front bumper l2, and a rear traction coupling l3.
- the frame of my bulldozer-attachment comprises a beam of two parts, I4 and I5. These two parts are secured together by ears l6, II,
- This pump 22- communicates by a pipemwhich for the sake of simplicity I have omitted to show, with cylinder-piston 24, pivoted on beam-part [4, which cylinder-piston actuates bell-crank 25; also pivoted on beam-part it.
- the downwardly curved forward portion of beam-part l4 carries a transverse horizontal channel 26, open to the rear, for engaging the bumper I! of the jeep or other vehicle. This channel must fit loosely enough over the bumper,
- brackets 21 and 28 Supported by brackets 21 and 28 on the front of beam-part it, there is a vertical column 29,011 which'slide two horizontal rings 30 and 3
- a chain 33 connects the bell-crank 25 with the blade 32, for lifting the latter.
- the lower portion 34 of the blade 32 may be hinged, as at 35,.so that it will tip up out of the way when meeting an obstruction during backing.
- a channel 31 Pivoted on the rear end of rear beam-part l5, as at 36, is a channel 31.
- This channel has, at its lower end, holes 38 for the insertion of a pin 39 to engage the rear traction coupling I3 of the jeep or other vehicle.
- Braces 48 project rearwardly from blade 32.
- the rear portion of each of these two braces is sufllciently high so that it bears against the front face of channel 26 in all positions of the blade.
- expansible coupling 42-43 When dismounted, expansible coupling 42-43 is loosened, pin 39 is removed, and channel 81 is folded under beam-part l5, and is securedto it by reinserting pin 39 through holes 38, l and 38. See Figure 5.
- the expansible coupling is secured by inserting pins 45 in notches 41 of brackets 48, and then tightening the coupling.
- Pin 20 is then removed, and rear beam-part l5 and its associated mechanisms is folded under front beampart I, by rotation about pin 2.
- the blade 32 had best be in its raised position, as shown in Figure 5.
- This cylinder-piston assembly may be actuated by any appropriate fluid pressure means (not shown).
- the advantage of my second variant over my first, is that my second permits downpressure on the blade.
- an attachment for use on a vehicle which has a front bumper and a. rear traction coupling, the combination of a beam to extend from front to rear of the vehicle above the vehicle, said beam having a downwardly projecting portion at each end; a rearwardly opening transverse horizontal channel, carried by the front downwardly projecting portion of the beam, to engage the front bumper of the vehicle; means to lock the rear downwardly projecting portion of the beam to the rear traction coupling of the vehicle; a bulldozer blade, carried by said front downwardly projecting portion, and vertically slidable with respect thereto; and means carried by the beam to raise and lower said blade.
- a beam to extend from front to rear of the'vehicle, said beam having a substantially vertical portion at its front end; means carried by the substantially vertical portion of the beam, to engage the front bumperof the vehicle; meansto lock the beam to the rear of the vehicle; a material-handling instrumentality, carried by the substantially vertical portion, and vertically slidable with respect thereto; and means to raise and lower said instrumentality.
- An attachment according to claim 2 further characterized by the fact that the bumperengaging means is a rearwardly opening transverse channel, and that there are means to secure this channel against vertical movement with respect to the front bumper of the vehicle.
- An attachment according to claim 2 further characterized by having, rearwardly projecting from the instrumentality, two braces, which slidably engage the bumper-engaging means at all heights of the instrumentality.
- An attachment according to claim 2 further characterized by the fact that thebeam carries a vertical column, and the instrumentality carries guide meansslidable on said column.
- the raising and lowering means comprises a fluid-pressure cy1inder-piston assembly carried by the beam, and a hand pump carried by the beam, and capable of pumping pressure into the assembly to raise the instrumentality, and of releasing said pressure to enable the instrumentality to lower under the influence of gravity.
- the raising and lowering means comprises a fluid-pressure cylinder-piston assembly carried by the beam, and a hand pump carried by the beam, and capable of pumping pressure into the assembly to raise the instrumentality, and of releasing said pres- 'sure to enable the instrumentality to lower under the influence of gravity, and a bell-crank pivoted on the beam and connected by the assembly to be rocked thereby, and tension means connecting the bell-crank and the instrumentality.
- raising and lowering means comprises a vertical cylinder carried by the instrumentality, and a piston therein, and two piston-rods to the piston, both rods being connected to the beam.
- An attachmentaccording to claim 2 further characterized by the fact that the beam is hinged in the middle.
- An attachment according to claim 2 further characterized by the fact that the beam has a rear downwardly projecting portion, pivoted to the beam, and has extensible means extending between it and the horizontal portion of the beam.
- An attachment according to claim 2 further characterized by the fact that the beam has a rear downwardly projecting portion, pivoted to the beam, and has extensible means extending between it and the horizontal portion of the beam, and by the fact that the beam is hinged in the middle.
- a beam to extend from front to rear of the vehicleabove the vehicle, said beam having a substantially vertical portion at its forward end; means forsecuring this beam to the vehicle, said means comprising means removably engaging one end of the vehicle and means releasably clampable to the other end of the vehicle; a material-handling instrumentality, carried by said substantially vertical portion, and vertically slidable with respect thereto; and means to raise and lower said instrumentality.
- a beam to extend from front to rear of the vehicle above the vehicle, said beam having a substantially vertical portion at its forward end; means for securing this beam to the vehicle; a material-handling instrumentality, carried by said substantially vertical portion, and vertically slidable with respect thereto; means to raise and lower said instrumentality; and, rearwardly projecting from the instrumentality, two
- the raising and lowering means comprises a fluid-pressure cylinder-piston assembly carried by the beam, and a hand pump carried by the beam, and capabie of pumping pressure into the assembly to raise the instrumentality, and of releasing said pressure to enable the instrumentality to lower under the influence of gravity.
- the raising and lowering means comprises a fluid-pressure cylinder-piston assembly carried by the beam, and a hand pump carried by the beam, and capable of pumping pressure into the assembly to raise the instrumentality, and of releasing said pressure to enable the instrumentality 'to lower under the influence of gravity, and a bell-crank pivoted on the beam and connected by the as,- sembly to be rocked thereby, and tension means connecting the bell-crank and the instrumem tality.
- an attachment for use on a vehicle, the combination of: a beam to extend from front to rear of the vehicle above thevehicle, said beam having a substantially vertical portion at its forward end; mean for securing this beam to the vehicle; a material-handling instrumentality, carried by said substantially vertical portion, and vertically slidable with respect thereto; and means to raise and lower said instrumentality, said means comprising a vertical cylinder carried by the instrumentality, and a piston therein, and two piston-rods to the piston, both rods being connected to the beam.
Description
Oct. 12, 1,948. w, MORK 2,450,905
.BULLDOZER ATTACHMENT FOR JEEPS Filed Oct. 11, 1945 2 Shets-Sheet 1 '29 5/ n, "a; ll
INVENTOR,
N I BY.
ATTORNEK a G. w. MORK BULLDOZER ATTACHMENT FOR JEEPS Oct; 12, 194
- the description progresses.
Patented Oct 12, 1948 UNITED STATES PATENT OFFICE George W. Moi-k,
South Milwaukee, Wis., assignor to Bucyrus-Erle Company, South Milwaukee, Wis., a corporation of Delaware Application October 11, 1945, Serial No. 621,703
'19 Claims.
My invention relates to new and useful improvements in bulldozer attachments for jeeps and other similar wheeled vehicles.
The jeeps developed during World War II are sturdy vehicles with considerable tractive power. During the war, bulldozers have been found to be as important-as artillery.
Bulldozers had already established themselves economy before the war; and
in the peacetime great demand for civilian postjeeps are nowin war use.
Accordingly it is the principal object of my invention to design a readily mountable and demountable bulldozer-attachment for jeeps, so as to produce an efilcient bulldozer for light work.
A further object of my invention is to design a self-contained bulldozer-attachment, which re- I quires no additionof any special cooperative flttings to the jeep. y
A still further object is to design a bulldozer, the blade of which slides up and'down, as contrasted with the conventional mounting of the blade on two pivoted push-arms.
In addition to my principal objects, abovestated, I have worked out a number of novel and useful details, which will be readily evident as My invention consists in the novel parts and in the combination and arrangement thereof, which are defined in the appended claims, and of which one embodiment is exemplified in the accompanying drawings, which are hereinafter particularly described and explained.
Throughout the description the same reference number is applied to the same member or to similar members.
Figure 1 is a plan view of a jeep with my attachment attached.
Figure 2 is a side elevation of the same, partly in section, taken along the lines 2-2 of Figure 1. Figure 3 is a slightly enlarged front elevation of the same, taken along the lines 3-3 of Figure 2.
Figure '4 is a slightly enlarged rear elevation of the locking device of my attachment, taken along.
.the lines 4-4 of Figure 2.
' Figure 5 is a side elevation of my attachment,
folded up for shipment.
Figure 6 is-a considerably enlarged side elevation of a second variant of my elevating mechanism, with the blade in section.
Figure 7 is a plan view of this elevating mechanism, with part of the blade and jeep showing, all taken along the lines 1-1 of Figure 6.
Figure 8 is a front elevationof this elevating taken along thelines 88 of Figure 6.
Referring now more particularly to Figures 1, 2 and 3, we see that 11 is a conventional jeep, or other vehicle, having a front bumper l2, and a rear traction coupling l3.
The frame of my bulldozer-attachment comprises a beam of two parts, I4 and I5. These two parts are secured together by ears l6, II, |8, l9; and pins 20,2I.
0n beam-part I4, there is mounteda conventional hand-pump 22, such that oscillation of pump-handle 23 builds up fluid pressure, and extreme positioning of thisv handle in one direction opens a valve in the pumpto release this pressure.
This pump 22- communicates by a pipemwhich for the sake of simplicity I have omitted to show, with cylinder-piston 24, pivoted on beam-part [4, which cylinder-piston actuates bell-crank 25; also pivoted on beam-part it.
The downwardly curved forward portion of beam-part l4 carries a transverse horizontal channel 26, open to the rear, for engaging the bumper I! of the jeep or other vehicle. This channel must fit loosely enough over the bumper,
so as to be readily mountable thereon, and removeably therefrom. Accordingly I provide the against vertical movement with respect to the bumper l2.
Supported by brackets 21 and 28 on the front of beam-part it, there is a vertical column 29,011 which'slide two horizontal rings 30 and 3|. These rings carry the bulldozer-blade32.
A chain 33 connects the bell-crank 25 with the blade 32, for lifting the latter.
The lower portion 34 of the blade 32 may be hinged, as at 35,.so that it will tip up out of the way when meeting an obstruction during backing.
Pivoted on the rear end of rear beam-part l5, as at 36, is a channel 31. This channel has, at its lower end, holes 38 for the insertion of a pin 39 to engage the rear traction coupling I3 of the jeep or other vehicle.
On rear beam-part l5 there is a hole 40, the
object of which will be stated later herein. Also, pivoted to beam-part l5, as at 4|, there is the female member 42 of an expansible coupling. The male member 43 has a handle 44 with which to screw it in or out. This male member also carries rotatable but not slidable sidewardly-projecting pins 45, to engage the hooked portion of channel 31; or, selectively, the notches 41 of the two brackets 48 on beam-part l5.
Braces 48 project rearwardly from blade 32. The rear portion of each of these two braces is sufllciently high so that it bears against the front face of channel 26 in all positions of the blade.
When dismounted, expansible coupling 42-43 is loosened, pin 39 is removed, and channel 81 is folded under beam-part l5, and is securedto it by reinserting pin 39 through holes 38, l and 38. See Figure 5. The expansible coupling is secured by inserting pins 45 in notches 41 of brackets 48, and then tightening the coupling. Pin 20 is then removed, and rear beam-part l5 and its associated mechanisms is folded under front beampart I, by rotation about pin 2. The blade 32 had best be in its raised position, as shown in Figure 5.
Turning now to Figures 6, 7 and 8, we see the second variant of my invention, which differs from my first variant merely by having a cylinder 50 to carry the blade 32. Within this cylinder there is a piston 6|, with two piston rods 52 and 53, which take the place of the column 29 of the first variant.
This cylinder-piston assembly may be actuated by any appropriate fluid pressure means (not shown). The advantage of my second variant over my first, is that my second permits downpressure on the blade.
Having now described and illustrated two forms of my invention, I wish it to be understood that my invention is not to be limited to the specific forms or arrangements of parts herein described and shown.
I claim:
1. In an attachment, for use on a vehicle which has a front bumper and a. rear traction coupling, the combination of a beam to extend from front to rear of the vehicle above the vehicle, said beam having a downwardly projecting portion at each end; a rearwardly opening transverse horizontal channel, carried by the front downwardly projecting portion of the beam, to engage the front bumper of the vehicle; means to lock the rear downwardly projecting portion of the beam to the rear traction coupling of the vehicle; a bulldozer blade, carried by said front downwardly projecting portion, and vertically slidable with respect thereto; and means carried by the beam to raise and lower said blade.
2. In an attachment, for use on a vehicle which has a front bumper and a rear traction coupling, the combination of: a beam to extend from front to rear of the'vehicle, said beam having a substantially vertical portion at its front end; means carried by the substantially vertical portion of the beam, to engage the front bumperof the vehicle; meansto lock the beam to the rear of the vehicle; a material-handling instrumentality, carried by the substantially vertical portion, and vertically slidable with respect thereto; and means to raise and lower said instrumentality.
3. An attachment according to claim 2, further characterized by the fact that the bumperengaging means is a rearwardly opening transverse channel, and that there are means to secure this channel against vertical movement with respect to the front bumper of the vehicle.
-4. An attachment according to claim 2, further characterized by having, rearwardly projecting from the instrumentality, two braces, which slidably engage the bumper-engaging means at all heights of the instrumentality.
5. An attachment according to claim 2, further characterized by the fact that thebeam carries a vertical column, and the instrumentality carries guide meansslidable on said column.
6. An attachment according to claim 2, further characterized by the fact that the raising and lowering means comprises a fluid-pressure cylinder-piston assembly.
7. An attachment according to claim 2,'iurther characterized by the fact that the raising and lowering means comprises a fluid-pressure cy1inder-piston assembly carried by the beam, and a hand pump carried by the beam, and capable of pumping pressure into the assembly to raise the instrumentality, and of releasing said pressure to enable the instrumentality to lower under the influence of gravity.
8. An attachment according to claim 2, further characterized by the fact that the raising and lowering means comprises a fluid-pressure cylinder-piston assembly carried by the beam, and a hand pump carried by the beam, and capable of pumping pressure into the assembly to raise the instrumentality, and of releasing said pres- 'sure to enable the instrumentality to lower under the influence of gravity, and a bell-crank pivoted on the beam and connected by the assembly to be rocked thereby, and tension means connecting the bell-crank and the instrumentality.
9. An attachment according to claim 2, further characterized by the fact that the raising and lowering means comprises a vertical cylinder carried by the instrumentality, and a piston therein, and two piston-rods to the piston, both rods being connected to the beam.
10. An attachmentaccording to claim 2, further characterized by the fact that the beam is hinged in the middle.
11. An attachment according to claim 2, further characterized by the fact that the beam has a rear downwardly projecting portion, pivoted to the beam, and has extensible means extending between it and the horizontal portion of the beam.
12. An attachment according to claim 2, further characterized by the fact that the beam has a rear downwardly projecting portion, pivoted to the beam, and has extensible means extending between it and the horizontal portion of the beam, and by the fact that the beam is hinged in the middle.
13. In anattachment, for use on a vehicle, the combination of: a beam to extend from front to rear of the vehicleabove the vehicle, said beam having a substantially vertical portion at its forward end; means forsecuring this beam to the vehicle, said means comprising means removably engaging one end of the vehicle and means releasably clampable to the other end of the vehicle; a material-handling instrumentality, carried by said substantially vertical portion, and vertically slidable with respect thereto; and means to raise and lower said instrumentality.
14. In an attachment, for use' on a vehicle, the combination of: a beam to extend from front to rear of the vehicle above the vehicle, said beam having a substantially vertical portion at its forward end; means for securing this beam to the vehicle; a material-handling instrumentality, carried by said substantially vertical portion, and vertically slidable with respect thereto; means to raise and lower said instrumentality; and, rearwardly projecting from the instrumentality, two
15. 'An attachment accordlng'to claim 13, further characterized by the fact that the beam carries a vertical column, and the instrumentality carries guide mean slidable on said column.
16. An attachment according to claim 13, further characterized by the fact that the raising and lowering means comprises a fluid-pressure cylinder-piston assembly.
17. An attachment according to claim 13, fur-t ther characterized by the fact that the raising and lowering means comprises a fluid-pressure cylinder-piston assembly carried by the beam, and a hand pump carried by the beam, and capabie of pumping pressure into the assembly to raise the instrumentality, and of releasing said pressure to enable the instrumentality to lower under the influence of gravity. 1 v
18. An attachment according to claim 13, further characterized by the fact that the raising and lowering means comprises a fluid-pressure cylinder-piston assembly carried by the beam, and a hand pump carried by the beam, and capable of pumping pressure into the assembly to raise the instrumentality, and of releasing said pressure to enable the instrumentality 'to lower under the influence of gravity, and a bell-crank pivoted on the beam and connected by the as,- sembly to be rocked thereby, and tension means connecting the bell-crank and the instrumem tality.
19. vIn an attachment, for use on a vehicle, the combination of: a beam to extend from front to rear of the vehicle above thevehicle, said beam having a substantially vertical portion at its forward end; mean for securing this beam to the vehicle; a material-handling instrumentality, carried by said substantially vertical portion, and vertically slidable with respect thereto; and means to raise and lower said instrumentality, said means comprising a vertical cylinder carried by the instrumentality, and a piston therein, and two piston-rods to the piston, both rods being connected to the beam.
GEORGE W. MORK.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,403,969 Linek Jan. 17, 1922 1,788,698 Wooldridge Jan. 13, 1931 2,044,044 Anthony June 16, 1936
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US621703A US2450905A (en) | 1945-10-11 | 1945-10-11 | Bulldozer attachment for jeeps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US621703A US2450905A (en) | 1945-10-11 | 1945-10-11 | Bulldozer attachment for jeeps |
Publications (1)
Publication Number | Publication Date |
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US2450905A true US2450905A (en) | 1948-10-12 |
Family
ID=24491273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US621703A Expired - Lifetime US2450905A (en) | 1945-10-11 | 1945-10-11 | Bulldozer attachment for jeeps |
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Country | Link |
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US (1) | US2450905A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2529208A (en) * | 1946-02-20 | 1950-11-07 | Certified Equipment Corp | Bulldozer attachment |
US2604708A (en) * | 1946-07-13 | 1952-07-29 | Baker Mfg Co | Raising and lowering mechanism for bulldozers |
US2611598A (en) * | 1949-06-01 | 1952-09-23 | Loyd H Adams | Road maintenance machine |
US2629495A (en) * | 1950-01-10 | 1953-02-24 | Stanley W Smale | Magnetic sweeper |
US2735197A (en) * | 1956-02-21 | struemph | ||
US2762283A (en) * | 1953-12-02 | 1956-09-11 | Int Harvester Co | Front mounted carry-all |
US2841894A (en) * | 1956-02-10 | 1958-07-08 | Charles M Valois | Combination bumper and bulldozer attachment |
US3976146A (en) * | 1975-03-13 | 1976-08-24 | Bernard Desourdy | Grader |
US4665636A (en) * | 1985-11-21 | 1987-05-19 | John Borras | Auto wheel snow scraper |
EP1061181A1 (en) * | 1999-06-15 | 2000-12-20 | Rammax Maschinenbau GmbH | Soil compacting wheeled vehicle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1403969A (en) * | 1920-12-08 | 1922-01-17 | Anton G Linek | Universal hitch for garden tractors |
US1788698A (en) * | 1928-03-03 | 1931-01-13 | Wooldridge Mack | Earth-moving implement |
US2044044A (en) * | 1932-12-10 | 1936-06-16 | Anthony Dev Company | Pump |
-
1945
- 1945-10-11 US US621703A patent/US2450905A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1403969A (en) * | 1920-12-08 | 1922-01-17 | Anton G Linek | Universal hitch for garden tractors |
US1788698A (en) * | 1928-03-03 | 1931-01-13 | Wooldridge Mack | Earth-moving implement |
US2044044A (en) * | 1932-12-10 | 1936-06-16 | Anthony Dev Company | Pump |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735197A (en) * | 1956-02-21 | struemph | ||
US2529208A (en) * | 1946-02-20 | 1950-11-07 | Certified Equipment Corp | Bulldozer attachment |
US2604708A (en) * | 1946-07-13 | 1952-07-29 | Baker Mfg Co | Raising and lowering mechanism for bulldozers |
US2611598A (en) * | 1949-06-01 | 1952-09-23 | Loyd H Adams | Road maintenance machine |
US2629495A (en) * | 1950-01-10 | 1953-02-24 | Stanley W Smale | Magnetic sweeper |
US2762283A (en) * | 1953-12-02 | 1956-09-11 | Int Harvester Co | Front mounted carry-all |
US2841894A (en) * | 1956-02-10 | 1958-07-08 | Charles M Valois | Combination bumper and bulldozer attachment |
US3976146A (en) * | 1975-03-13 | 1976-08-24 | Bernard Desourdy | Grader |
US4665636A (en) * | 1985-11-21 | 1987-05-19 | John Borras | Auto wheel snow scraper |
EP1061181A1 (en) * | 1999-06-15 | 2000-12-20 | Rammax Maschinenbau GmbH | Soil compacting wheeled vehicle |
US6499542B1 (en) | 1999-06-15 | 2002-12-31 | Rammax Maschinenbau Gmbh | Roller vehicle for ground compaction |
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