US1113139A - Machine for applying bituminous materials and the like to roads. - Google Patents

Description

` E. o. &,P. D. PERRY. APPLYING BITUMINOUS MATERIALS AND THB LIKE TO RO'ADS.

APPLICATION FILED JULY 3.1912.

Patented Oct. 6, 1914.

MACHINE FOR o o o n n Q n o n o o n o c o o0 'lowing is a specification.

ffor this purpose involving a road roller -in ordinary roadwaysand which cannot Iwork to advantage on anything except the 4essary in' order to keep the material in proper condition for "these heavy oils by improved apparatus UNITED` STATES PATENT OFFICE..

EDWARD C. PERRY .AND FRANK D. PERRY, OF ORS T0 AMERICANl CAR SPIRINKLER CO.,

PORATION OF MASSACHUSETTS.

WORCESTER, MASSACHUSETTS, ASSIGN- OF WORCESTER, MASSACHUSETTS, A COR- MACHINE FOR APPLYING BITUMINOUS MATERIALS AND THE LIKE TO ROADS.

Specification of Letters Patent.

Patented Oct. 6, 1914.

Application filed July 3, 1912. Serial 110.707,509.

TaaZZ whom it may concern:

Be it known that we, EDWARD C. PERRY and FRANK D.-PERRY, citizens of the United States, both residing at Torcesten in the county of Worcester and State of Massachusetts, have invented a new and useful Machine for Applying Bituininous Materials and the like to Roads, of which the fol- This invention relates to a' machine for distributing bituminous or other roadsurfacing material, particularly heavy asphalt oils. Oils of this character are those containingpabove or 65% asphalt. It is so difficult to melt these oils and reduce them to such a condition of fluidity as to make them fiow easily for the purpose of applying them to roadways that heretofore, so far as We are aware, in the practical manipulation of this class of road-surfacing materials, it has been considered necessary to use a very cumbrous and expensive device capable .of producing steam in large amounts, a tank vehicle trailing behind it, and a third vehicle constituting a trailer for distributing the oil from the tank vehicle. This-forms a long train which cannot turn longest stretches of,roads. In addition to this even with that apparatus, it has not been found an easy matter to spray the road-surfacing material under all conditions,4v and constant vigilance has been necapplication to the roads. e

,The principal objects of this invention are to provide for melting and distributing mounted on a single vehicle so as to avoid Icondition for spraying on the roadway in a. minimum of time and kept in that conditionias long as may be desired.

Further objects of the invention are to provi-de -a machine of this character' of the gether; to

sure of the material at self-propelled type in which all the elements are conveniently assembled on a single frameso as vto move along the road toprovide power operated means adapted to be operated by the motor which drives the machine for drawing the road surfacing material from a tank and supplying it directly to spraying nozzles; to pro` vide regulatable means whereby the presthe nozzles can be varied to suit different conditions Without changing the speed of the motor or the pump which forces the materia'fl through the nozzles and at the same time to provide for the filling of the tank by the use of the same connections in part at least.v

The invention also involves the combination with these elements of a steam-making device carried by the truck and adapted to heat the material in the tank to a high temperature and withv such eiliciency that the spray pipe will not have to be heated, and means whereby the exhaust steam can be used for reheating the material that is forced past the nozzles and back into the tank.

The invention also involves other features of construction as will appear hereinafter. i

Reference is to be had to the accompanying drawings in whichi Figure 1 is a side elevation of a machine constructed in accordance with this invention; Fig. 2 is a rear elevation of the tank thereof and pump with the connections between them; Fig. 3 is a sectionalplan near the bottom of thetank showing the heating coil; `and F ig. 4 is a plan of certain por tions of the mechanism for connecting the motor with the pump.

The invention is shown as applied to a truck or vehicle 10 provided with a motor' located in a casing 11 near the front and having also an auxiliary engine or motor 1Q. On the frame just behind the auxiliary motor is a. tank 13 for the road surfacing material adjacent to which Vis aI water tank 1i. The driving shaft 15 of the main motor is provided with a longitudinally slidable pinion 16 adapted when in one position to mesh with a gear 17 on a shaft 1S which by means of gearing 19 drives a.`

shaft 20 which is connected with and operates thepump 21. On the shaft 18 also 1S a sprocket wheel 2Q adapted to `be driven by a chain 23 from the shaft 24' ofthe auxil-' iary engine 12. The pinion. 16 on the main and vice versa.

. discharged through pire driving shaft of the motor is operated by a link 26 connected with lan operating lever' 27. In ordinary operation the lever 27 is moved to the position shovvniiiv the drawings, which brings the pinion 16 out of mesh with the gear 17` Thesllaft 15 drives the `driving Wheels in any of .the Ordinary Ways. vWhen it is desired to operate the pump 21, this can be done either 'by shifting the pinion 16 into mesh with the gear 17 by means of the lever 27, or by starting up the auxiliary engine l2.

The tank 13 for the road surfacing material is connected with, and supports, the pump 21 by means of a short pipe 30 having a valve 31 yby which it can be closed. The outlet 32 from the pump is connected directly with a horizontal pipe 33 which is provided with spray' nozzles 34 of any desired character. Tt will be seen, therefore, that with the valve 31 open and the pump in operation the material Will be positively forced into the spray pipe 33. The pump preferably is designed to vbe capable of a higher duty than that for which it is usually required, and it is designed to serve another purpose besides that of supplying the spray pipe, that is, it is provided with a by-pass 35 from its outlet back into the tank through a pipe 36. .This results in the circulation of the liquid and also permits the regulation of the pressure at the nozzles. This regulation is secured by means of a regulating valve 37. When it is desired to increase the pressure at .thhe nozzles, this valve is adjusted to reduce the opening therethrough,

Another by-pass 33 is provided having a cut out 39 therein so that fresh liquid .can be introduced from the by pass 35 through a connection 40 simply by opening the valve 39 Without disturbing any adjustment of the valve 37.

At the -rear of the tank 10 is shown a gas furnace 42 supplied with gas from a tank 43 and Wit-h Water from the tank 14 by connections not shown herein. This furnace is of a type capableof generating a high teinperature and producing superheated steam consequently at a high-pressure. The steam is discharged through a pipe 44 into a coil'or series of pipes 45 in the bottom of the tank 13. 'The exhaust is taken out through a pipe 46 which is connected by a pipe 47 with a 48 inside the by-pass 35 and extendingy from end to end thereof practically for the purpose of heating the liquid which circulates therethrough. This exhaust steam 1s can be used a cock 49. The exhaust pipe' 46 is also connected With a pipe (50 which passes into 'the spray fpipe 33. That portion of the pipe 50 lying Within the pipe 33 is provided With perforations and that portion vexterior to the pipe-.233 is proyided with a valve 51, this construction permitting the spray pipe 33 and also the by-pass 35 to be cleaned out by the force of the exhauststcam. lt will be understood, of course, that the coils 45 are located withinthe tank Where they come into Contact With the inaterial to be kept in molten condition, and that any desired kind of Asplaslfi-plat'es 53 can be employed in the receptacle. WVhen the steam, Whether exhaust or live, is turned into the pipe 48, it keeps the oil in the pipe 35 in' a thoroughly molten condition, and the steam passing down through the pipe 50 is forced into the pipe 33 and clears it out. But if 'the valves49 and 51 are closed, all the steam has to pass up through the valve 37. Then' part of it passes through the valve 39 and pipe 38X and into the pipe 35. This will assist in clearing out the spray pipe.

But ,if the nozzles and vtalves 49 and 51 aref' closed in the rst place, this steam has to pass into the steam exhaust of the pump and it turns the rotary pump backward and draws the molten material out of the spray pipe back into the tank. This tank is shown as provided with an inlgt tube 54 having a cap `for lclosing the vsanie and Vwith a tube 55 provided also with a cap and used for inspection only. g

lVith this construction it has been found in practice that the range and efficiency of the road surfacing machine are very ma. terially increased. 'Vhile the `machine is on the way to the place at -which it is Ito be used, steam can bein the process of lbeing generated so that itcan start out on a job Without any material preparations and it for long stretches of road, its period of usefulness being limited only by ioo the capacity of the tank and by the distan away of the source of siipply ofthe ro4 d surfacing material.

lvVhile/ive have illustrated and described a preferred embodiment of the invention, we are aware of the fact that modifications can be made therein, and he principles of the invention carried out in other forms Without departing from the scope of the invention as expressed in the claims. Therefore We do not Wish to details of construction herein shown and described, but

7What We do claim is 1. An apparatus heavy oils having, truck, a tank mounted thereon having a bottoni slanting from the v having a steam coil located therein, means mounted on the truck for producing superheated steam, means for lconducting the for heating and spraying I in combination, a Wheel front tothe rear and-- superheated steam" di ectly to said steam coil,

a pump located directly under the rear end of the tank, a short pipe for conducting oil from the lowest point of the tank directly to said pump, a spray pipe below and closely `adjacent to said pump,'and a connection for conducting the oil under vpressure from the

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