US2907319A - Road paving machine - Google Patents

Description

Oct. 6, 1959 Filed March 25. 1952 R. R. LOVE ROAD PAVING MACHINE 2 Sheets-Sheet 1 INVENTOR Elk/22rd H 1,01%"

ATTORNEYS t 1 R. R. LOVE 2,907,319

- ROAD PAVING MACHINE Filed March 25, 1952 2 Sheets-Sheet 2 INVENT OR ATTORNEYS ROAD PAVING MACHINE Richard R. Love, Buhl, Idaho Application March 25, 1952, Serial No. 278,350 7 Claims. ((31. 126-3435) This invention relates to improvements in road paving machines, and in particular to a machine for patching roads or streets, in cold and Wet Weather.

It is an object of this invention to provide a means for repairing holes and breaks in roads which makes it possible to undertake repairing during cold or otherwise inclement weather.

It is a further object of this invention to devise a simple inexpensive device which is of light weight and can be easily moved from place to place.

Another object of this invention is to devise a machine having self-contained heating equipment for heating road surfaces having holes therein so as to prepare said surfaces for patching and similar repairing.

A still further object of this invention is to provide a machine having means for simultaneously heating road surfaces and material to be deposited in holes, crevices or other faults prior to the placing of said material into said faults, coupled with means for conveniently depositing said material into the faults immediately after heating.

Yet another object of my invention is to provide a readily portable paving machine having a means for conveniently raising and lowering heating means over road areas being repaired.

These and other objects and advantages will become apparent from the following description and the accompanying drawings, in which:

Figure 1 is a side elevational view of machine.

Figure 2. is a plan View.

Figure 3 is a rear elevational view partly in section and with some parts being removed for clarity of showing.

Figure 4 is a plan View of another form of my invention.

Figure 5 is a fragmentary elevational view of the device of Figure 4.

Similar reference characters indicate similar parts in the several figures.

It is particularly difiicult to accomplish repairs on oiled and similarly paved roads and streets during the winter or in wet weather. This is primarily due to the poor bond obtained between a patching mixture and a wet or cold hole. It is common knowledge that patching work done under such conditions does not last. In fact, the usual practice is to defer repairing of such roads until better weather. This of course results in holes becoming bigger, more diificult to fix and more dangerous.

It has long been deemed desirable to have a means of thoroughly and adequately conditioning holes, etc. and mixes used in patching them, so that a secure bond of the hole and mix will result. During warm and dry Weather it is ordinarily not necessary to heat the holes, etc. But particularly during the weather it is necessary to thoroughly heat the hole and surrounding area of the road to drive out moisture and raise the temperature. If such is not done the patchwork soon crumbles.

the road paving atet fice ure 1.

the furnace. When the mix container is in its normal? winter and during Wet It will be apparent from the following description that I I have devised paving equipment which is adapted for use in patching, etc. during inclement weather. The

device comprisesin general a cart or wagon which can be readily moved about having a self-contained heating unit for heating simultaneously the roadway and-patching materials.

The wagon is adapted to be moved over a hole to be lowered over a hole so as to insure proper heating, and the machines for towthe wheels can be pivoted to adapt ing by a truck or similar vehicle.

Referring now in particular to the drawings, 10 indicates a generally rectangular shaped heat container'or furnace having a front 11, a rear 12 and two sides 13. Mix container 14 is pivotally connected as by hinge 15 to the upper portion of front 11. Container 14 comprises a pan 16, two diverging side panels 17 and a back 18. Handle 19 is securely fastened to back 18. Furnace 10 is open at its top and bottom, and pan 16 is so formed that it closes the top opening when the pan is in its normal position, as shown in full lines in Fig- The pan-like mix container closes the top of position it closes the top of the furnace and is heated by the heat introduced 7 time as the mix container is heated it deflects a considerable portion of the heat downwardly toward the open bottom end of the furnace. Stated in another way, the invention comprises a furnace. at its upper end and at its sides, with the exception of suitable ports for introducing heat and venting the furnace. The bottom end of the furnace is open and adapted to be brought in close proximity with a road surface. A portion of the furnace is formed by or delineated by a pan-like container. and contain a quantity of material to be heated. This material is heated by the same heat that is used to heat the roadway, and the container functions as a part of the furnace during the heating of the roadway. The container, however, is movably connected to the other portions of the furnace and can be moved to dump the material which is contained therein during the heating of the roadway. As shown in the preferred embodiment, the container is pivotally mounted and can be swung upwardly about its pivotal connection to dump the materials that have been heated therein.

V-shaped handle 20 is attached to the furnace 10 by any suitable means, such as nuts and bolts 21. Brackets 22 diverge downwardly from the handle and engage shaft 23. Wheels 24 are rotatably mountedon,

the shaft in any suitable manner. I

As shown in'Figure 3, back 12 of furnace 10 has two) openings 25 and 26. Opening 25 is a burner opening through which heat from burner 27 enters. Opening 26; prevents the build-up of dangerous pressures within the; furnace. Shield 28 is provided to reduce heat loss and; protect operators of the equipment.

A slide 29 is alfixed to back or rear 12 in any con venient manner. Burner 27 is slidably mounted on the slide. Four V-shaped members 30 are attached to the; burner and clampingly engage the slide. Burner 27..,, is connected to fuel tank 31 by pipe 32 and hose 33.

Patented Oct, 6,

into the furnace. At the same The furnace is closed The container is adapted to receive"v valve 34- maybe provided. Tank 31 may be of the pres sure type shown and is supported on handle 20 in any convenient fashion. The burner may be provided with the usual-flame. adjusting means. Through means of $1116 slide ;the.:burner cans-be. adjusted longitudinally: for propg 5 er.entrance' of; the flame into the. furnace: Clamppon; other. types .ofqlock means may be provided. for. securing; the. burner rina selected position-.on the slide.

In'operation the furnace. is placed over a-hole' tosber: filled and the burner adjusted to give the proper heat for. warming-and drying the roadway in a .reasonable time; Thevpatching; mixture is placed in container 14.-prior.'to heating. the road, andwhile. the hole is being; prepared, the. mixture. .is swarmed to -theproper temperature for patching work and/ or maintained at such temperature.

After. sufficient heating has been. accomplished the vehicle. is ,drawn :backasoasto uncover a the .hole. Container 14 can then be tilted to deposit the mix in the hole.

Theformof my device illustrated in Figures 4-and 5 comprises a furnace or heat container 40- of the same general shape. and construction-as the furnace of the firstdescribed modification. Mix container, 41 is constructedlalong. the lines of container 14-. Container 41 is pivotally connected to thefurnace by hinge 42 and :is provided with a handle 43. A burner.44 which may=use liquid.gas,. is supported inproper position for entrance of the flamethrough an opening in the furnace similar to opening 25. The burner may be fed from-a tank mounted-on .a highway truck through a hose 45. The exact method of supporting the burner is not shown since such depends on the type and make of burner. Blast shield .46 prevents blow backthrough an opening similar to opening 26.

A heat deflector 47 is fastened to mix-container: 41 directly infront of the burner and diverts part of the. heat more directly to the center of the hole to be. patched. Handle 48is connected to the heat container byanysuitable. means, such as nuts and bolts.

The-supporting wheels 54) are mounted on brackets 51 by stub.shafts 52. Brackets 51 are secured to shaft. 53 at their upper ends-in any convenient manner. Shaftv 53 extends-across handle 48 and is pivotally mountedthereon by trunnion cap 54. Shaft 53 is provided with an overcenter device comprising a rod 55 having U- shaped .portions 56 and 57. The upper end of the rod is pivotally secured to shaft 53 at 58 by a bolt, pin .or similarmeans mounted in suitable. brackets notshown. U-shaped bracket 59 is mounted on furnace 49. 7 Spring 69 isattached. to bracket 59 and the lower end 57 of rod.55.'

In transporting from one place to another, the wheels are in the dotted line position shown in Fig. 5. When the deviceis in the vicinity of the holeto be patched, the vehicle is tilted and the wheels arernoved to the. full line position of .Fig. 5 through rotation ,of shaft 53. A stop. 61 is attached toeach ofthe brackets 51. The stops engage handle 48 in both extreme pivoted positions of the wheels. Rod 55. assumes .the positions shown" when the wheels are in their respective extreme positions.. Movement of the'rodfrom one position to the other iseffected by rotation of shaft 53 as the wheels are. moved.

The heating of the road and patching mix is accom.. plished. in the same manner with both modifications of my device. The'furnaces of my road machines cancbe. raised from the roadway by simply pushing down on the 65 ends of the handles. When thehandles are pushed down at their rearmost endsthe. furnaces will pivot aboutthe wheels. Thus the furnaces can be readily-moved from one hole in a roadway to another.

The simple devices described above will make it possi-. ble to properly repair. roads during thezmost inclementweather, at a reasonable: cost. Because ofthein light. construction and. comparatively small .size... they can be easilylmovedfrorn placeto placebytruckor other con venient means. This makes it. possible .to .quicklyrepairbad spots, holes, breaks,v etc. .in. roadways. no.. matter. where they may be. As a result such road faults can be repaired before they spread and cause greater deterioration to the roadway.

The previous practice of deferring repairing of oiled or similar roads until spring, which results in greater expense in repairing, increaseddamage to the road and inconvenience to users of the road can be changed through use of my inventionz While I have shown and described. a preferred form of my invention, it will be understood that variations in details of form rmaya beemade; without: departure. from the invention as defined in the appended claims.

I claim:

1. A road patching machine comprising a furnace, said furnace having means forming a side, said means defining an open bottom and an open top, the perimeter of the bottom opening. being engageable with a roadway, a panlike mix container, said mix containerhaving a bottom member and means forming theside of said container, the side of said mix container beingformed generally complementary to the side. of said furnace, said-mix". container resting-on saidside of said furnace andsub'-- stantially completely closing the open top thereof, said mix container beingpivotally connected to said furnace by pivot means connected to said side of said-furnace and said side of said mix-container, means for directing: a heated medium laterally of the side of:said furnace within said furnace, a baffieattached to the bottom of said container and extendingdownwardly into said furnace when said container rests on said furnaces side, said. bafile being positioned to intercept the heated medium received from the last named means and. extending downwardly toward thebottom end of said furnaceto direct? saidheated medium downwardly beneath said furnace.

2. .A road paving machine comprising, in combination, a wheeled combined road heating furnace and patch mix heating container, said machine including side members, a top member bridging said side members, said side and said top members forming said furnace, said top. member being vertically supported by said side members and: completely closing the top of said furnace, saidside. members defining an. open bottom of saidfurnace, the

interior of saidfurnace comprising a hollow chamber extending from said top member to said open bottom, means for introducing a heated medium into:said hollow. chamber, said top member forming a deflector forforca ing said heated medium downwardly through said open bottom, said patch mix heating'container havinga bottom, said top member forming said bottom ofsaid con-.- tainer, said'container having side means extending..up-.

wardly from said top member and forming the side of said container, said container beingpivotally attached. to said furnace by means pivotally connecting said. con-- tainer to one side of said furnace.

3. The apparatus of claim 2 in which the means-pivotally connecting said mix container to-said furnacecorna prises a hinge connected to one side of said furnace and. to one side of said mix container.

4. A road paving machine comprising, in combination, a road heating furnace having a means forming; sides thereof and a patch mix heatingcontainer, said furnace being positioned beneath and in part formed by said mix container with said mix container forming the top part of; said furnace, said furnace being designed to heat. aroad: area beneath said furnace, said furnace having an open. bottom and constituting a hollow chamber open at'its bottom but closed at its top by said mix container,'means for introducing a heated medium into said furnace, said container and said sides being constructed to confine'said heated medium within said furnace, prevent upward .es-. cape of said heated medium and force said medium out-L wardly of said furnacethrough the open bottom of said"; furnace.

5. A road patching machine comprising in,combinaa tion, a furnace, wheels, said wheels having a normally horizontally disposed axis of rotation, means movably connecting said wheels to said machine comprising a shaft rotatably connected to said machine, said shaft having an axis, brackets connected to said shaft, said wheels being pivotally connected to said brackets, said brackets being movable through rotatable movement of said shaft with respect to said machine to move said axis of said wheels from a first position in which said axis of said wheels is at one side of said furnace and at one side of a vertical plane through said axis of said shaft to a second position in which said axis of said wheels is beneath said furnace and at an opposite side of said vertical plane, a rod having a first portion formed complementan'ly to the circumference of said shaft, means pivotally connecting said rod to said shaft adjacent said first portion of said rod at a point spaced laterally from the axis of said shaft, said rod being pivotal with respect to said shaft about an axis parallel to the axis of said shaft, said shaft being received in said rod first portion when said wheels are in said first position, said rod having a second portion extending from said rod first portion laterally of said shaft axis, resilient means connected to said rod second portion, said resilient means being connected to said machine at a point spaced laterally of said shaft axis, the latter point being diagonally opposite said first portion with respect to said shaft when said axis of said wheels is in said first position, said resilient means normally tensioning said rod to move laterally of said shaft axis, said means pivotally connecting said rod to said shaft being movable in an arc during rotation of said shaft, said point of connection of said resilient means to said machine lying in a plane extending through said axis of said shaft, said means pivotally connecting said rod to said shaft lying on one side of the latter plane when said wheel axis is in said first position and being movable with said shaft, laterally across the latter plane when said shaft is rotated to move said wheel axis from said first position to said second postion.

6. A road patching machine comprising, in combination, a furnace, wheels, said wheels having a normally horizontally disposed axis of rotation, means movably connecting said wheels to said machine comprising a shaft rotatably connected to said machine, said shaft having an axis, brackets connected to said shaft, said wheels being pivotally connected to said brackets, said brackets being movable through rotatable movement of said shaft with respect to said machine to move said axis of said wheels from a first position in which said axis of said wheels is at one side of said furnace and at one side of a vertical plane through said axis of said shaft to a second position in which said axis of said wheels is beneath said furnace and at an opposite side of said vertical plane, a rod, means pivotally connecting said rod to said shaft, resilient means connected to said rod, said resilient means being connected to said machine at a point spaced laterally of said shaft axis, said point being laterally opposite said means pivotally connecting said rod to said shaft, with respect to said axis of said shaft, when said axis of said wheels is in said first position, said resilient means normally tensioning said rod to move laterally of said shaft, said means pivotally connecting said rod to said shaft being movable in an arc during rotation of said shaft, said point of connection of said resilient means to said machine lying in a plane extending through said axis of said shaft, said means pivotally connecting said rod to said shaft lying on one side of the latter plane when said wheel axis is in said first position and being movable with said shaft laterally across the latter plane when said shaft is rotated to move said wheel axis from said first position to said second position.

7. The combination of claim 6 including means connected to said brackets adapted to supportingly bear again said machine when said wheel axis is moved to said first position, and means connected to said brackets adapted to supportingly bear against said machine when said wheel axis is moved to said second position for supporting said machine on said wheels when said axis is in either of said positions.

References Cited in the file of this patent UNITED STATES PATENTS 183,331 Ruliffson Oct. 17, 1876 485,399 Ventzki Nov. 1, 1892 535,778 Welch Mar. 12, 1895 542,349 Perkins July 9, 1895 616,001 MacKendriok Dec. 13, 1898 732,610 Wyatt June 30, 1903 1,062,655 Macleod May 27, 1913 1,849,581 Littleford Mar. 15, 1932 1,957,144 Littleford May 1, 1934 2,417,553 Jensen Mar. 18, 1947 FOREIGN PATENTS 1,704 Great Britain of 1912

Images