US2001345A - Drier - Google Patents

Description

A. 5. FORTY DRIER Filed Jan. 18, 19:54

May 14, 4

2 sheets-sheet "Patented May 1935 UNITED STATES DRIER Albert G. Forty, Graniteville, Mass., assig'nor to C. G. Sargents Sons Corporation, Granitevllle,

Masa, a corporation of Massachusetts Application January 18, 1934, Serial No. '107,184

1 Claim.

lengths,'such as worsted top which is in rope form or various materials made in web form such as cloth, etc.

It is also an object of the invention to provide a machine of this kind wherein the material to be treated is caused 'to traverse a tortuous path through the drying chamber and wherein the conveyor for ca y ng the material is of a type to effectively hold the material while passing through the drying chamber.

An additional object of the invention is toprovide an apparatus'of this kind wherein the material to be treated is carried through the drying chamber in what may be termed up and down paths, together with means for effectively subjecting said material as it travels up and down within the drying chamber to the action of the drying medium.

The invention consists in the details of construction and in the combination and arrangement of the severalparts of my improved drier whereby certain important advantages'are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will herein- 5 after he definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a vertical sectional view taken through a drying apparatus constructed in accordance with an embodiment of my invention and of a somewhat diagrammatic character;

Figure 2 is a transverse sectional view taken substantially on the line 2-2 of Figure l and also of a somewhat diagrammatic character;

Figure 3 is a fragmentary view in plan of the top conveyor;

Figure 4 is a fragmentary view in plan of the bottom conveyor;

Figure 5 is a diagrammatic view in elevation illustrating a further embodiment of my invention;

Figure 6 is a diagrammatic view in elevation illustrating another embodiment of the invention.

As disclosed in the accompanying drawings, H denotes a housing of desired dimensions and configuration and which is divided by the vertically disposed partition I into a dryin'g'chahiber D at one side thereof and at the opposite side to provide a. fan chamber F and the heating chamber C. These chambers F and Q are separated one from the other by the partition 2 extending from the lower portion of the adjacent side wall 3 to the upper portion of the partition I at .a desired point below the top wall 4 of the housing. The upper edge of the partition I also terminates below the top wall 4 of the housing 10 to provide therealong an opening 5 co-extensive with the length of chamber D affording communication between the upper portions of the chambers D and C. The lower portion of the partition 2 is provided with horizontally spaced open- 15 ings 6 and rearwardly of each opening and within the chamber F is arranged a power operated fan P which operates to draw air downward through the chamber D and through the material or stock passing through said chamberD and 20 back into the upper portion of the chamber, D through the opening 5.

Positioned within the upper portion of the chamber C and below the opening 5 are the heating pipes 1 extending lengthwise of the chamber 25 C whereby the air just before it passes through the opening 5 into the upper portion of the chamber D is heated to the desired temperature. Steam is preferably coursed through the pipes l to attain the desired heating action although, of 30 course, any other medium may be employed as may be effectively used.

Disposed transversely of the lower portion of the chamber D and preferably equidistantly' spaced are the parallel shafts 8 substantially 00- '35 planar and uneven in number. Disposed transversely of the upper portion of the chamber D and substantially medially positioned with respect to adjacent shafts 8 are. shafts 9. The

4 shafts 9 are even in number thus assuring the 40 proper positioning of a shaft 9 with respect to each two adjacent shafts 8.

Exteriorly of the housing H and inflclose proximity to the lower portion thereof are rotatably supported the shafts Ill and II, the shaft. con- 45 stituting the operating shaft and being in driven connection with a source of power herein generally indicated as the motor M of an electric type. However, any means may be employed toreifect the desired rotation of the shaft II. The shafts 50 8 adjacent the ends thereof carry the sprocket wheels 8' while the extremities of the shafts 9 carry the sprockets 9 and operatively engaged successively with the sprockets 8' and 9' are the side chains 12 of an endless conveyor. Each of 55 these chains I2 is extended outwardly of the .housing H through the suitably formed openings I4 provided in the end walls of the housing or more particularly the chamber D so that each of said side chains I2 may be operatively engaged with the sprockets I and I I" carried respectively by the shafts I0 and II.

As the sprockets II' are mounted for rotation with the shaft II as this shaft is rotated the chains I2 will be drawn through the chamber D at desired speed with the upper stretches of the chains I2 preferably traveling in the direction of the shaft II so that the conveyor in which the chains are comprised together with the material on such conveyor will be pulled through the chamber.

The links of the chains I2 are connected by the cross rods I5 and which provide supports for the material to be treated and which material may be worsted top which is in rope form or kin l2 of the conveyor hereinbefore referred to.-

Each of these chains I'I passes around the sprocket wheels I8 loosely mounted on the shafts 9 to the outer side of the sprocket wheels 9' at saidend portions of the shafts 9. Each of the chains I! also passes around the sprockets I8 mounted on the shafts I9 positioned in close proximity to but above the lower sprocket wheels 8' on the shafts 8. Each of the chains I'I also passes over the guide sprockets 2| carried by theshafts 2I.

arranged within the upper portion of the chamber D adjacent to the ends thereof so that an upper stretch of each of the chains I! will travel above the top sprockets 9'.

In order that each of the fans I shall have desired effective action within the drying chamber the lower portion of the partition I in horizontal alignment with each of the openings 6 in the partition 2 is provided with an opening 22, and the effective circulation of the air through the drying chamber is further assured by the stationary deflector 23 and the movable or adjustable deflector 24 mounted within the top portion of the chamber D in a position with respect to theeduction opening 5 as will secure an even distribution of the heated air upon the stock carried through the drying chamber by the conveyor.

Aside from the general use in connection with the improved conveying mechanism the'deflectors 23 and '24 form no part of the present invention.

The wall 3 of the housing H at a point substantially midway of the fans P and between said fans and the heating pipes I is provided with an opening 25 affording communication between the chamber C and an upstanding flue 26. This flue 26 is of desired height and allows for an air exhaust for the chamber C and the flowthrough the flue 26 is under control of a valve 21.

In the embodiment of the invention as diagrammatically illustrated in Figure 5, the first rising portion and the last descending portion of the conveyor 28 have associated therewith the endless holding chains 29 each being of a structure substantially similar to the chains I1 and cross rods I6 hereinbefore referred to, while the adjacent descending and ascending portions of the conveyor 28 have associated therewith an endless holding chain 30 travelling in what might be termed a V path so that portions of the chain 30 will provide proper stretches for effective coaction with said adjacent descending and ascending portions,

In the embodiment of the invention as diagrammatically illustrated in Figure 6, the rising portions 28 of the stock carrying conveyor each has associated therewith an endless travelling holding chain 29' preferably of a structure such as hereinbefo e described with respect to the chains I! an connecting rods I6.

It will be noted from Figure 1 that the air inlet opening 5 extends the full length of the drying chamber H so that the air passes downward on both sides of each pair of upwardly converging chain flights and that the eduction openings, with the eduction fans are disposed adjacent the lower ends of these flights and between the lower ends of the upwardly converging flights so that the air is drawn downward through the material is held upon these conveyor chains by the outer chain II but even if this outer chain I! were not used, the air moving downward will act to hold the material against the upper faces of the conveyor chain I2.

Attention is also called to the particular manner in which I train the chain II. It is impossible 'to carry the chain II down around the sprockets 8' ordown around sprockets mounted upon the wheel shafts 8 of the sprocket wheels 8 because if this were attempted the sprocket chain or, conveyor I! would have to pass through the inner chain IS, the conveyor 'II having to pass over the upper sprocket wheels and under the lower sprocket wheels. If it was attempted to From the foregoing description it is thought.

to be obvious that a drier constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:--

In a drier, a drying chamber, a chain conveyor entering the lower portion of the chamber through one end wall thereof and leaving through the lower portion ofthe opposite end wall, a series of sprocket wheels disposed at spaced points at the lower end of the chamber between the entrance and exit opening, a series of sprocket wheels adjacent the upper portion of the chamber, the chain conveyor being trained beneath the first named sprocket wheels and over the second named sprocket wheels to'provide a series of ascending and descending flights, sprocket wheels concentric to but larger than the upper sprocket wheels, sprocket wheels disposed above but in line with 5 the first named sprocket wheels and an endless chain conveyor travelling around the third and fourth named sprocket wheels and bearing against the material on the upper surface of the first named conveyor and travelling therewith.

. ALBERT G. FOR'I'Y.

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