US628421A - Apparatus for resurfacing asphalt pavements. - Google Patents

Description

No. 628,421. Patented July 4-, I899.

- w. A. TIDE. APPARATUS FORBESURFACING AsPHALT PAVEMENTS. (Application fllgd Apr. 17, 1899.) (Na Model.) I 2 Sheets-Sheet l.

WITNESSES: INVENTOR:

No. '628,42l. Patented My 4, I899.

w. A. TIDE. APPARATUS FOR RESURFACING ASPHALT PAVEMENTS.

(Application filed Apr. 17, 1899.) 2 Sheets-Sheet 2.

WITNESSES: INVENTOR:

TNE Nonms PETERS w. wormumo" WASNJNGTDN n c UNITED STATES PATENT OFFICE.

WVILLIAM-A. TICE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE- l-IALF TO DAVID B. OWEN, OF CAMDEN, NEIV JERSEY APPARATUS FOR RESURFACING ASPHALT PAV EMENTS.

SPECIFICATION forming part of Letters Patent No. 628,421, dated July 4, 1899.

Application filed April 17, 1899- Serial No. 713,293. (No m d m To all whomit .may concern;

Be it known that I, WILLIAM A. TIoE, a citizen of the United States, residing in the city and county OfPhiIadeIphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Resurfacing Asphalt Pavements, of which the following is a specification.

Hitherto when asphalt pavements have become worn or otherwise rendered imperfect, and it has been desired to resurface them, the practice has frequently been first to soften the surface by the application of heat, then to cut out or otherwise treat the defective portions in whole or in part, then, if necessary, to cover the treated surface with fresh asphalt, and finally to run a heavy steam roller over the region under treatment.

The operation of applying heat has frequently been performed by burning beneath a portable hood or shell placed in position over the pavement to be treated, and provided on its under surface with suitable burners, gasolene, supplied to said burners from a portable reservoir carried to the place of treatment and supplied to the burners through suitable tubes or pipes.

After the heating has been accomplished and the pavement treated by cutting out portions of it or by supplying fresh asphalt to it, or both, an independent apparatus, namely, a steam-operated road roller, has been usually driven backward and forward over the mended pavement to solidify it and reduce it to the appropriate grade or level.

My invention aims to provide an apparatus I which will unite the functions of a hood and of a steam roller and thereby diminish the labor of transportation,-in which in the heating operation the use of gasolene will bedispens'ed with and the employment of an inexpensive grade of fuel oil in connection with the steam from the boiler resorted to, thereby in employing said steam, making use of the heat generated in the boiler during the time the roller itself is out of operation, and by thus employing the steam rendering possible the use of said fueloil instead of gasolene and saving the difference in cost of the two articles.

In the accompanying drawings I show, and

apparatus embodying a goodform of my invention.

Figure 2 is a view in end elevation, looking toward the rear of the hood.

Figure 3 is a view in perspective of the hood, the hood attaching devices, and the pipes leading toitsinterior, shown as removed from the body of the structure.

Figure 4 is a longitudinal, vertical, sectional, elevational view, and Figure 5 is a transverse, vertical, sectional, elevational, fragmentary view of the hood,

Similar letters of reference indicate corresponding parts.

In the accompanying drawings,

'A represents a steam roller of any ordinary or usual type supposed provided with a furnace and a steam boiler and other usual appurtenances.

B is a reservoir for fuel oil, conveniently mounted within the bodyof the structure at any desired point.

D is a concavo-convex shell or hood, as I prefer to term it, of any desired proportions,

curvature and material, connected with and carried by the steam roller in the travel of thelatter.

The body of the hood is shown as formed of a sheet of metal (I bent to a form which may be described as being approximately the segment of a conical cylinder, its respective side edges being parallel, and adapted when the hood is'down in the position shown in Figure 1 to rest upon and in close contact with the ground.

The rear end of the hood D is closed by'a transversely extending web (1 the upper edge of which follows the curvature of the body of the dome, and the lower edge of which is in the same plane as the side edges of said hood.

One or more draft doors 0 are formed in the end web, as shown particularly in Figure 2. The front end of the hood is preferably open as illustrated.

The inner. face of the dome is covered or provided with a wearing face d of iron, connec'ted to the body of the hood,-in any preferred manner, as for instance by rivets, as

shown in Figures 4 and 5, said rivets being preferably so arranged as to hold said wearing face in such a position as -to provide a small interspace between said face and the I body of the hood.

In practice I fill this interspace with a packing d of asbestos or kindred material.

The hood serves to confine against escape and reflect strongly downward upon the ground beneath, the heat resulting from'the -fuel combustion, and the wearing face serves to protect the body of the hood from the destructive contact of the flames, with the result that said facing may when worn be removed and a new facing substituted at little expense, the. body of the hood remaining uninjured and serviceable for a long period of time.

Any convenient means of attaching the hood to the body of the roller may, of course, be resorted to.

In' the form of myapparatus illustrated in the drawings, I. show said hood as provided with a pair of rearwardly projecting hooks E E the free downwardly extending extremities of which are engaged in corresponding eyes or keepers e e, on the body of the roller. I furthermore show, a pair or tie-rods F F the front extremities of which are attached to the forward portion of the hood, and the rear portions or ends of which are provided with hooks f f, pivotally connected to them which hooks are engaged with any convenient upwardly projecting portion of the framework.

Each tie bar is as a matter of convenience formed of two rods f f the adjacent extremities of which are entered in a suitable turn buckle f so that by the manipulation of said turnbuckles the length of thetie rods may be it which are in communication with said burners.

J is a pipe leading from the reservoir B, and provided with branches j which respectively connect with said burners.

Each of the pipes, and branch pipes is, of COIiII'SG, provided with the usual controlling Va ve.

In the practical construction of apparatus embodying my invention, the hood may of course be applied to the body of the apparatus in any desired manner.

The operation of the apparatus will be readily understood. v

When. it is desired to repair a street, a fire is started in the grate of the apparatus, and steam is generated and utilized in the propulsion of the structure to the place of repair.

On arrival at the desired point, the structure is brought to rest with the hood in position over the defective pavement, the valves controlling the outlet pipes are set to give the lead to the steam and oil to the burner nozzles, and the vapors issuing from said nozzles are ignited. The peculiar form and arrangement described and illustrated provides a very fierce heat beneath the hood and one which is-very efficacious in. the softening of the asphalt. By opening and closing the draft doors 0 at the inner end-of the hood, the draft is very easily regulated.

In the operation described, steam generated in the steam chest is as hereinbefore stated utilized by being combined with any suitable oil to form combustible vapor, and the combustible vapor thus formed by steam and oil, takes the place of the high pricedgasolenc, whichhas heretofore some times been employed.

As soon as the asphalt has been heated and the necessary repairs made to the pavement, the apparatus, still, if desired, carrying the hood, is caused to travel backward and forward over the repaired pavement to reduce it to the desired grade.

The apparatus devised by me, a typical embodiment of which is herein illustrated and described, constitues a very great practical improvement in the art of making street repairs, and by its means are attained the advantages of convenience, the saving-of labor and time, and saving in cost of the burning fluid.

Having thus described my invention, I

my invention I have hereunto signed my nam e this 12th day of April, A. D. 1899.

' WM. A.- Tron.

In presence of Tnos. K. LANCASTER, F. NORMAN DIXON.

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