US1090206A - Drier for portable asphalt-machines. - Google Patents

Description

C. E. GUBLIGH.

DRIER FOR PORTABLE ASPHALT MACHINES. APPLICATION mum 00111, 1912.

1,090,206. Patented Mar. 17, 1914.

SSHBETB-SHBET 1.

m ma-L ez'c ml co..wAsmNaToN n C C. E. GUELICH.

DRIER FOR PORTABLE ASPHALT MACHINES.

APPLICATION FILED 0012.17, 1912.

1,090,206. wPatented Mar. 17, 1914.

3 SHEETS-BHBET 2.

COLUMBIA i'LAuocuum COqWASlHNflTON. u. c.

C. E. GUELICH.

DRIER FOR PORTABLE ASPHALT MACHINES.

APPLICATION FILED 00T.17, 1912.

' 1,090,206. Patented Mar. 17, 1914.

3 SHEETS-SHEET 3.

COLUMIIIA PLANDIJRAPH c0., WASIXIN nnnnnn CHARLES E. GUELICH, OF KINGSTON, PENNSYLVANIA.

DRIER FOR PORTABLE ASPHALT-MACHINES.

Specification of Letters Patent.

Patented Mar. 17, 191 1.

Original application filed September 23, 1908, Serial No. 454,364. Divided and this application filed October To all whom it may concern:

Be it known that I, CHARLES E. Gunmen, a citizen of the United States, and a resident of the city of Kingston, Luzernc county, Pennsylvania, have invented ccrtain new and useful Improvements in Driers for Portable Aspl1alt-Machines; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numbers of reference marked thereon, which form a part of this specification.

This invention constitutes a division of my prior application for patent for improvements in portable machines for treating asphalt, mastic and related materials, filed Sept. 23, 1908, Serial No. 154:36 1, and relates to that class of asphalt machines embraced in the patent issued to me on the 7th day of NOVOIl'llJGI, 1911, No. 1,007,689, in which a portable machine was provided with rotative cooking and mixing cylinders receiving the supply of asphalt cement from a suitable feeder, and receiving simultaneously therewith and partly mixed therewith, sand and granular material such as crushed rock or gravel from a suitable drying compartment within the furnace, which is also mounted as a part of the machine. In said prior invention the machine was mainly intended for treatment of fresh or new materials of suitable fineness or graduatcd as to coarseness, the grading of which was controlled wholly or largely before the same was delivered into the machine.

The present invention relates to the agitating and drying receptacle, and has for its object to provide certain improvements in the construction of the same, as will be hereinafter more particularly described and claimed, reference being had to the accompanying drawings, in which Figure 1 is a central vertical longitudinal sectional view of a machine embodying my improved agitating and drying receptacle. Fig. 2 is a transverse sectional view of the apparatus. Fig. 3 is a top plan view, with parts omitted, of the driving end of the machine. Fig. 4: is a detail section taken on the line 1 (L, Fig. 1.

Said machine is constructed on a frame consisting of suitable structural bars forming side sills 1, end sills 2 and 3, and transverse sills 1 to 11 inclusive, of which the Serial No. 726,266.

transverse sills 5, 6, 9, and 10 are disposed suitably to afford the bolster sills above any suitable truck on which the frame may be supported. The transverse sills 7 and 8 are channels having their flanges turned away from each other, and are a suitable distance apart to afford a part of the side walls of the furnace, the grate bars 12, of which are supported on inclined plates 13, riveted or otherwise secured to the backs of the channels. The sills 8 to 11 inclusive are covered on the upper side with plates of metal 15, as shown in Fig. 1, to afiord a floor for the furnace, and supported upon the sills 7 and 11, are the end walls of the machine, which serve also for the end walls of the furnace, and which, as shown, are composed of suitable cast iron plates, which may be ar'angcd scctionally or otherwise and in any suitable form for use in association with the parts hereinafter described. As shown also, side plates 16, are provided supported upon the side sills and also constructed of suitably shaped cast sections adapted to afford a closed wall and which may be constructed in any desired form or configuration to adapt the same to the'other parts or mechanisn'is which afford a part of the machine. lotatabl y engaged on each side of the middle of the furnace thus formed, are rotatable gyrating cooking cylinders indicated by 17 and 18.

\Vithin the cylinders 17 and 18, as shown, are provided boaters, which are rigidly fixed on the heads, and as shown, comprise longitudinal rods 29, four in number, as shown in Fig. 2, and extending diametrically across the cylinder and engaged on 0ppositcl y disposed rods, are paddles or beat ers 30, the ends of which extend to near the periphery of the cylinder. Any desired nun'lbcr of such boaters may be used.

.As shown, the top of the furnace is covered with metal plates 33, and fixed to the underside thereof are two melting caldrons, each comprising, as shown, a trough 3 1, constructed of sheet metal and inclined toward, the forward end of the machine, and as shown, jacketed by an outer shell 35, spaced from the inner troughs. Each caldron is adapted to discharge into a suitable fccder from whence the melted material in plastic form is fed into the cylinder.

Journalcd centrally in the top of the furnace between the melting caldrons and the cooking cylinders is the drying receptacle, in this instance shown as a rotatable cylinder 39, and which, as shown, is provided at its front end with a rotative head 40, having a central aperture therethrough to receive the discharge chute 41, and provided within the head with integral radial blades 42, corresponding with the radial plates 32, beforedescribed in the mixing cylinder and useful for the same purpose. The cylinder 39, is connected with said head by riveting or otherwise. Said cylinder, as shown, at its rear end is secured upon an annular band or rim 43, affording an open end therefor and into which projects breeching 44. On the front head of the cylinder is provided a spur gear 4-5, whereby the cylinder may be rotated and as shown, said cylinder may be supported at both ends as heretofore described with reference to the rear end of the heating cylinders, that is to say, suitable rollers or casters may be provided. at each end to take the weight of the cyl nder as the same rotates. Supported on each side of the machine, as shown in Fig. 2,'are elevators 46, in this instance, shown as bucket elevators, though, of course, other types may be used if preferred. Said elevators are adapted to receive the material. such as macadam or any granular material adapted for use in the preparation of a road, floor or pavement it is purposed to construct, and serve to elevate the same and empty the contents of the buckets into the hopper 17, the lower end 48, of which is directed clownwardly through the breeching and inwardly to the cylinder, as shown in Fig. 1, so that the material from said conve ers is discharged directly into the drying cylinder. As shown, said cylinder is provided within the same with longitudinal ribs consisting of Z bars 49, riveted to the shell 39, and projecting inwardly with the inner flanges directed toward the direction of rotation of the cylinder. As shown also, bands or rims 50, are riveted or otherwise secured on the inner flanges of the 2 bars, as shown in Figs. 2 and 1, and serve to brace the same on the rim, and extending through the cylinder shell 39, diametrically are flucs 51, each of which, as shown, is formed of sheet metal and is cut away on the rear side thereof afiording a relatively large opening extending longitudinally of the pipe or flue, and partly closed by means of wire gauze 52, about which, and secured to the fine, is a deflector plate or rib 53, which projects outwardly from the flue and serves to prevent the material within the cylinder from falling against the gauze.

Mounted upon the rear end of the machine, and opening into a suitable chamber connected with the breeching 4 1, is a stack 54:, and means are provided for affording a draft through the stack comprising a positively driven fan 54, the shaft of which eX- tends through the breeching 44, and is pro-- vided with a sprocket wheel 100.

Journaled on the forward end of the machine is a screen, as shown consisting of a drum of suitable length divided longitudinally into a plurality of sections graduated in fineness from the comparatively fine rear end of the drum into which the material from the drier is delivered to the comparatively coarse screen at the forward endof the drum, said drum being inclined forwardly and downwardly so that the material moves by gravity to ard the front or coarser screen, and as shown, the spout or chute 41, whereby the material is delivered from the drying cylinder, projects into position to discharge 1nto the screen.

As shown in Fig. 1, a hopper affording compartments 57, 58, 59 and 60, each below the corresponding screen sections 61, 62, 63, and 6 1 of the drum receives the material from the various sections and delivers the same graduated as to fineness into said re spective compartments grading the same so that the compartment 57, contains the finest material and the compartment 60, the coarsest. Delivering downwardly from said hopper, the material falls into the feeder proper, which consists of the casing 28, before mentioned, containing a worm conveyer. This worm conveyor projects through the tubular axial bearing for the forward head of the corresponding cooking and mixing drum 17 or 18 and projects inwardly beyond the head sufficiently to deliver the material well into the drum. 1 rd vision (not shown) is also made for controllably delivering the contents of the melting caldron into said worm conveyor so that the materials are delivered. and partly miXed in the feeder and then delivered into the heating drum in a homogeneous mass.

The various mechanisms hereinbefore described, may, of course, be driven simultaneously from any suitable source ofpower, and either one or more motors may be employed for the purpose. However, as shown, a single motor (and that an internal combustion engine 68) is supported on the forward end of the frame and drives a main shaft 69, adapted to receive the sprocket chain 70, trained over the sprocket wheel on the screen shaft before described. As shown in Fig. 1, a shifting clutch 71, is provided, operated by a lever 7 2, whereby the screens may be thrown out of action by the shifting of the clutch.

At the rear of the engine and on the motor shaft, is provided a spur gear 73, which acts in lieu of a balance wheel and which drives two corresponding gears 7 on shafts 75, one of which is located on each side of the main shaft 69, and as shown, is also provided at its forward end with a sprocket wheel 76, adapted to receive a sprocket chain which is trained over a sprocket wheel on the shaft of the worm conveyor. As shown also, a clutch 79, operated by a suitable lever, is provided on each of said shafts whereby either of the conveyer shafts may be thrown out of action and its driving shaft permitted to rotate freely.

Rotatably secured on each of the shafts 75, at the rear end thereof and controlled by a clutch 81, operated by a lever 82, is a gear 88. These gears mesh respectively with the gear 84:, on the forward end or head of rach of the mixing and cooking cylinders, thereby rotating the cooking cylinders from the motor and rotating either both simultaneously or rotating them selectively, it being possible to operate either independently of the other or both simultaneously, as preferred. Also rotatably secured on the driving shaft 69, is a pinion 85, which drives a gear 86, 'journaled upon a stud shaft 87, in the main frame of the furnace and rigidly secured on said gear 86, is a pinion 88, which meshes with the gear 41-5, on the forward end of the drying cylinder. Said shaft is provided with a clutch 81, and lever 82, as before described adapting the drying cylinder being actuated either independently of, or simultaneously with the mixing and cooking cylinders and the screen. At the rear end of the drying cylinder is rigidly secured a geared ring 85), whereby the power of the motor is transferred through the medium of said rotating and drying cylinder to the rear end of the machine.

Of course, the drive from the forward to the rear end of the machine may be arranged in numerous ways and both said eonveyers may, if preferred, be driven direct from a sprocket wheel on the shaft.

The operation is as follows: The machine is, of course, mounted upon any suitable trucks, of which the front truck Y is provided with any suitable fifth wheel to enable the machine to be readily steered or the direction changed when drawing the same from place to place. In operation, the heat from the fire pot passes upwardly through the furnace and around the mixing and cooking drums or cylinders and thence around the drying cylinder and the caldrons, and thence its heat having been utilized to the maximum degree the products of combustion are delivered outwardly through the sta ck. The asphaltic cement or like material is delivered into the caldrons in any suitable manner. The heat applied in the caldrons may he graduated by removing one or more cover plates, which vent the air space between the outer and inner walls of the cal,- dron and thus, by permitting a greater or less amount of circulation between the walls enables the heat transmitted to the caldron to be easily graduated. W'hile so treating the asphaltic materials to be melted, the granular material, which may be, of course, fresh and new material or if preferred, when the machine is used for road repair the worn out. roadbed of macadam or like material is delivered into the bucket conveyors 4th, at the rear end of the machine, and is carried upwardly and dumped into the hopper from whence it is delivered into the drying cylinder, mainly by gravity, and owing to the for-- ward inclination of the drying cylinder and the rotation thereof, said material is carried therethrough each rotation thereof, carrying the material upward on the Z bars, or in wardly directed, longitudinal webs in the cylinder from whence the material falls past the screen flue pipes, being thus constantly thrown into the hot current of air passing from the fines and falling from the top to the bottom of the cylinder, effectually breaking up any of the unbroken lumps of the material while the same exposed to a high de gree of heat, thereby thoroughly separating and breaking up the materials and effectually drying the same, and thence delivering the material through the various divisions of the screen into the hopper compartments effectually graded as to fineness. The material is now adi'nitted into the feeders by means of the rotative valves, the bottoms in which in the various compartments are graduated to deliver of each grade of materials the proper proportion to insure the most satisfactory results, and this material mixed with the melted asphalt or similar material is delivered in a partly mixed con dition into the appropriate cooking and mixing cylinder. Here, owing to the eccentric journaling of said cylinders, which causes the ends each to havx a slight orbital movement each eccentric to the other, the material is thrown back and forth from end to end of the cylinder as the cylinder rotates and is dashed in contact with the mixing blades supported in the respective cylinders with the effect that all portions of the contents of the cylinders are equally heated and equally mixed, and inasmuch as the rotation of the cylinder constantly brings a surface of higher temperature into contact with the material being treated, it follows that the material is very quickly raised to maximum heat or cooked, and that without danger of burning. llaving completed the ctmking operation, the material may be delivered from the machine in any suitable manner.

(it course, T. am aware that in my prior application for patent the drying means, the ealdron and the cooking and mixing means were wholly within the furnace. In that construction, however, the drying means were stationary and for that reason were not well suited to break up and thoroughly grade the materials designed for rc-use.

I have embodied in this invention mechanism for automatically drying and separating the constituents into their parts and grading the granular constituents in accordance with the iinest preparatory to recombinin the materials for re-layin (if course, very nun'ierous details of the construction may be varied. I therefore do not purpose limiting myself otherwise than necessitated by the prior art.

I claim as my invention:

1. In a machine of the class described an agitating and drying receptacle, fire flues extending transversely through the receptacle and opening thereinto intermediate the ends thereof, and means delivering the material to be dried past the openings in said lines.

2. In a machine of the class described a disintegrating and drying receptacle, lire fines openn through opposlte sides of the receptacle, a. d flues opening through their sides into the receptacle, and means deliver ing the material to be dried transversely the receptacle and past the lateral openings in said lines.

3. In a machine of the class described a disintegrating and drying cylinder, fire tlues extending transversely therethrongh and opening laterally thereinto and means de livering the material to be heated transversely past the openings in said flues.

4;. In a machine of the class described a furnace, a drying and disintegrating cylindcr adapted to'rotate thereover and tire fines extending transversely therethrough and opening thereinto.

In a machine of the class described a furnace, a cylinder rotatable therein, tire fines extending diametrically therethrough and opening thereinto, longitudinal Webs therein adapted to carry the material partly around the cylinder during the rotation thereof, and means for delivering the ma terial from the cylinder through the axis thereof.

(3. In machine of the class described a furnace, a rotatable disintegrating and drying cylinder therein, fire flucs extending transversely therethrough and opening thereinto, and means Within the cylinder for delivering the material to be dried trans versely the cylinder and past the openings in said fines during the rotation.

7. In a machine of the class described, rotative disintegrat ng and drying cylinder, lire fines extending diametrically therethrough and opening thereinto, longitudinal Webs secured on th shell Within the same, a flange on the inner edge of each directed toward the rotation of the cylinder acting to carry the material from the bottom to the top of the cylinder and to discharge the same by gravity across the cylinder and 'means for discharging the material through the axis of the cylinder.

8. in a machine of the class described a furnace, an inclined drying and disintegrating cylinder supported to rotate thereover, lire tlues extending diametrically therethrough and opening centrally thereinto, and longitudinal radial Webs acting to deliver the material to be dried past the openings in said lines by gravity.

9. in a machine of the class described a furnace, a disintegrating and drying cylinder supported therein, means rotating the same, fire llues extending diametrically through the cylinder and opening thereinto, and longitudinal carriers acting to deliver the material to be dried past the openings in said flues by gravity.

10. In a machine of the class described the combination With a furnace of a rotative drying cylinder, inwardly directed longitudinal radial ribs therein adapted to carry material upwardly to near the top of the cylinder, lire flees opening into the cylinder and adapted to deliver a hot blast to the material when falling from the top to the bottom of the cylinder, a screen covering the opening in the tire tlues andrdellectors for preventing the falling material striking the screens.

11. In a machine of the class described a rotative drying cylinder, fire tlues extending transversely therethrough and opening thereinto and deflector surrounding said opening.

12. In a machine of the class described a rotative cylinder, fire flues extending therethrough diametrically, and provided with screened apertures opening into the cylinder and deflector surrounding each aperture.

13. A machine of the class described embracing a furnace, an inclined drying cylinder, inwardly directed longitudinal radial ribs therein flanged forwardly at the inner edge and adapted to carry material upwardly to near the top of the cylinder, and discharge the same by gravity herefrom, fire fines extending transversely through the cylinder and having openings adapted to deliver a hot blast to the material When falling from the top to the bottom of the cylinder, and a tan drawing the hot gas through the material in the cylinder.

14. In a machine of the class described the combination. With a furnace of a rotative drying cylinder therein, inwardly directed longitudinal radial ribs carried on the inner wall thereof adapted to carry material upwardly to near the top of the cylinder and to l the same transversely the cylinder by gravity, lire fiues extending transversely tln'ough and opening into the cylinder and adapted to deliver a hot blast to the material W161] falling from the top to the bottom of the cylinder, screens covering the openings in said Hues, and guards surrounding the screened discharge openings 01'' the lines.

15. In a machine of the class described the combination With a furnace of a drying cylinder Wholly inelosed Within the furnace means rotating the cylinder means operated by the rotation 01 the cylinder for delivering the material to be dried thereinto, fire Hues extending diametrically through the cylinders and opening thereinto to assist in drying the material.

16. In a machine of the class described the combination With a furnace of a drying cylinder Wholly inelosed Within the furnace,

fire flues opening into said drying cylinder, a screen covering the opening in the fire lines, niians rotating the cylinder, a hopper at one end the cylinder, an elevator delivering the material to be dried thcrcinto and operative connections for actuating the elevator by the rotation of the cylinder.

in testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

CHARLES E. GUELICH.

Witnesses MURRAY C. Boron, HOWARD A. MINER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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