US1074519A

US1074519A - Drying and heating apparatus.

Info

Publication number: US1074519A
Application number: US56978310A
Authority: US
Inventors: Charles A Mullen
Original assignee: RUTH DAVIS MULLEN
Current assignee: RUTH DAVIS MULLEN
Priority date: 1910-06-30
Filing date: 1910-06-30
Publication date: 1913-09-30
Anticipated expiration: 1930-09-30

Description

MULLEN 'DRYING'AND HEATING APPARATUS.

APPLIGATION FILED JUNE 30, 1910.

Patented Sept. 30, 1913.

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O. A. MULLBN. DRYING AND HEATING APPARATUS APPLICATION FILED JUNE 30, 1910.

Patented Sept. 30, 1913.

3 SHEETS-SHEET 2.

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0. A. MULLEN. DRYING AND HEATING APPARATUS.

APPLICATION FILED JUNE 30, 1910.

Patented Sept. 30, 1913.

3 SHEETS-SHEET 3.

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CHARLES a. nutter; oar-new roan. n. Y.

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" specification of Letters Patent;

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, ASSIGNUR serene Ann sesame Arreeams,

Patented Sept; 30, 1913.

Application filed .l'une 2c, 1910. semi N6. 569,783.-

T0611 16. 6am it may concern! Be itflfiiown that I, Gremlins A, MULLEN,

ing and Heating Apparatus, of which the following is a specification, reference being had-therein to the accompanying drawing a This invention relates to improvements in drying andheating apparatus for treating "gravel, sand,- g'rit, broken stone, or other llke granular substances, the principal object be ing' to provide an apparatus which will effectually remove the .moisture froln and sufficiently heat the material by a continuous process for its utilization in constructing, renovating or repairing roadways, roofs, composition pavements, as a filler in joints of block pavements,- and in all industries requiring the ganular material in a. heated and dried-condition. T

In constructing all of the drying and heating apparatus of the general type of this ,mvcntion, they have ignored either theadvantage and necessity of gravitating the material to bedried and heated. di ectly over the side of the furnace, or the advantage and necessity of gravitating said material n a thinand approximately even layer through which thelueat or products of combustion may readily penetrate. It is therefore proposed in the present invention to provide a 'gravitating, drying and heating apparatus which includes a furnace, and a drying and heatin compartment having sides so arrapg as to contain a thin and approximate y even layer of the material to be dried and'lheated, said compartment arranged about said furnace so that the innerside of the compartment is the side of the furnace.

The invention furtherconsistsof certain novel details of construction and combinations and arrangement of parts, all as will be now described and the particu ar, featnres of novelty pointed out in the a pended J I V i In the drawings :Figure 1 is a perspective view of my improved drying and heat ing apparatus,- a-portion of 'one of the end plates-being broken away, Fig.- 2 is an end of the same shown partlyin. section,

. of the material to be drie Fig.- 3 is a side elevation of the drying and heating apparatus.

In carrying this invention into practice, and having particular reference in this 'instance to Figs. 1, 2 and 3 ofthe drawings,-

make use of a furnace, having two sides a,-a preferably perforated, and so arranged roofwise as to resemble in cross section, an inverted letter V, and two end plates 6,- b a fire door 0 being. provided inone of the end plates, and a flue d with a damper e,extending from the other end plate for carrying oil products of combustion. It'will be noted that the end plates hand 6 extend some distance beyond the perforated sides of the furnace, and thus serve as end plates for the heating and drying compartments, which compartments are arranged at the sides of said furnace. The end plates are secured in proper position r'elative'to the sides of the furnace by meansof angle irons 7 to which the said sides and en plates are securely bolted or riveted.

As has heretofore been pointed drying and heating compartments as to acc'ommodate'therein out, .the aresuch a verythin layer and the sides of the furnace form the inner sides of said compartments, the outer side of each compartment being made up of a series of downwardly and inwardly deflecting flights g, which are preferably perforated, and which are arranged in a line slightly separated from the sides of the furnace and approximately parallel thereto, extending from the top to a point sli htly above the, base of the furnace. These flights are of approximately the same length as the furnace sides, and are secured at their ends to the extensions of the end lates by means of an is irons h, which a-nglie irons are also bolte' or otherwise secured to the top edges of said flights.

As a further support for these flights, one or more are or stripsin the form of inverted T ironsz are bolted or riveted to the sides-of the furnace, which irons" are-provided with vertical slots j within which the flights are su' ported A'suitable opper 7a is arranged above the apex of the furnace structure, a-nd is' secured in lace by bolts or rivets to the uppermost dighton each side of the furnace, and to the end plates of said furnace, said I on each side of the furnace.

hopper adapted to receive the material which it is' desired to dry andheat-,and feed the same into the two compartments through the openings formed at the upper edges of the furnace sides and the uppermost flight As has been stated, the lower flight on each side of the furnace is-arranged aslight distance from.

the base of said furnace, and in this .way an exit for the material being dried and heated, isformed, so that the material is discharged, if it be desired, in a pile on the ground at the base of the furnace sides, from whence it may be taken in a dried and been treated, allowing the heated and dried material to fall in its place and be removed for use, when, asfastas it is removed, an

equal quantity from the untreated supplymu'stbe added at the hopper, thus creating a continuous gravitating process during which the desired result is accomplished.

The grate of the furnace is illustrated at Z and said grate is supported on angle irons m, one on each side of the furnace, which are secured attheir ends to the end plates 6 and Z). Cast-er wheels 02 are'provided at the four corners of the furnace structure, and

are preferably secured to the end pla'tes asshown, and in this mann'er the heating and drying apparatus is madeportable'and can be easily carried along as the, work progresses, a handle obeing provided for movmg said apparatus when desired.

In using my improved drying and heat I ing apparatus, and after the fire in the furnace is well started, I close the damper in the flue, thus requiring the products of combustion and heat to be forced out through the perforations in the through the gravel, and then through the perforations in and the spaces between the downwardly and inwardly deflecting flights.

By thus using the apparatus, a more,com-' plete utilization of all the heat and products of combustion can be had, for the reason that they cannot escape doing their work ofdrying 'and heating on their way out through the perforated sides, and through the'gravel, they having no means of escape except by these passages.

The hopper may be of any convenient shape that will discharge the material to be dried and heated through an opening in its bottom into the openings at the top of the furnace sides,

desired, a storage bin p, such as shown in drying and heating compartments, and if Fig. 2 of the drawings, may be placed below i the exit at the bottom of said drying and Y heating compartment or compartments to until the same is needed for use.

.Having' thus fully described my invention, 'What I claim and desire'to protect by Letters Patent, is 2- V 1. In a gravitating drying and heating. apparatus, the combination of a furnace apparatus, the combination of a furnace having sides and end plates, metal bars or strips secured upon the exterior of'the sides of said furnace, and a series of flights arrelation therewith and being supported by with said furnace sides a compartment through which the material to be dried and heated may pass in a thin and approximately even layer. I p

3. In a gravitating drying and heating apparatus, the combination of a furnace having sides and end plates, metal bars or strips secured upon the exterior of said furnace sides and having slots formed therein, and a series of flights arranged adjacent said furnace sides in spaced relatiomtherewith and engaging within said slots, whereby they are supported and held in position, said flights forming with said furnace sides acompartment through which the material to be dried and heated may passin a thin and approximately even layer.

apparatus a furnace consisting of a perforated sheet of'metal bent over roofwise to form two heating sides arranged directly above the floor of said furnace, end plates secured to the edges of-said sides, said end plates having extensions which project-beyond the sides of the furnace, and a series of flights arranged lengthwise of the furflights being secured and supported by the said extensions of the end plates, and said flights and the sides of the furnace forming a drying and heating compartment for containing a thin approximately even layer of the material to be treated.

5. In a gravitating drying and heating neceive and contain thedischarged material having sides and end plates, metal bars or" said bars or strips, said flights forming.

nace at spaced intervals therefrom, said.

bars or strips, said flights forming with Y v2. In a gravitating drying and heating i ranged adjacent said furnace sides in spaced 4. In a gravitating drying and heating 1 apparatus, the combination of a furnace having sides and end platesarranged above the fire of said furnace, said end plates having extensions which project beyond the 'sides of the furnace, downwardly and inwardly directed flights arranged lengthwise of the furnace and approximately parallel 1 to its sides, said flights bein secured to the said extensions of the end p ates, which extensions serve as the end Walls of acornpartment which is formed between the sides of the furnace and the flights, and a hopper arranged above the furnace and adapted to feed the material to betreated to the drying flights being secured to the said extensions of the end plates of the furnace, which extensions serve as the end walls of a compartment which. is formed between the sides of the furnace and the. flights, and partitions arranged within the compartments and serving to suppor the flights.

7. In a gravitating drying and heating apparatus, the combination of a furnace having sides and end'plates, a drying and heating compartment arranged about the furnace, angle irons arranged lengthwise of the furnace along the sides thereof and se cured at their ends to the end plates, and a furnace grate supported on said angle irons.

8. In a gravitating drying and heating 'apparatus,'a drying and heating compartment constructed to contain a thln approximately even layer of the material to be dried, said compartment having perforated sides and being so arranged in relation to the furnace or fire box that the direct heat and products of combustion-from 'said fire box will be drawn through the gravel by the draft passing out through the perforations .in the sides of the heating and drying compartment, thus taking off-the moisture and heating the material.

9. In a gravitating drying and heating apparatus, the combinatlon of a furnace having sides and end plates, metal bars or strips'secu'red upon the exterior of the sides of said furnace and transversely arranged thereon at intervals throughout the length of the sides, and a series of flights arranged lengthwise of the furnace and forming with said furnace sides a compartment through which the material to be dried and heated may pass in a thin and approximately even layer.

in presence oftwo witnesses.

CHARLES A. MULLEN. Witnesses:

' H. GERALD CHAPIN,

GEoReIANA M. WALTER.

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

In testimony-whereof I affix my signature