US836325A - Discharging device for driers. - Google Patents

Description

PATENTED NOV. 20, 1906.

M. F. KBVLIN. DISOHARGING DEVICE FOR DRIERS.

APPLIOATION FILED 1030.26, 1905.

0000000oooooooooooooooo./ ooooooooooooooooocoooooooooo.

jnvenzorn witnesses.-

MM WWW,

1n: NORRIS PETERS COJWASHHIGTGN, n. c.

UNITED STATES MATHEW F. KEVLIN,

THE JAMES HUNTER CHUSE' TS. A CORPORATION OF PATENT OFFICE.

MASSA- DISCHARGING DEVICE FOR DRIERS.

Specification of Letters Patent Patented Nov. 20, 1906.

Application filed December 26,1905. Serial No. 293,190-

1'0 all w/un'rt it may cwccern- Be it known that I, MATHEW F. KEVLIN, a citizen of the United States, residing at North Adams, in the county of Berkshire, State of Massachusetts, have invented a certain new and useful Improvement in Discharging Devices for following is a specification, reference being bad therein to the accompanying drawings.

A well-known type of drier for wool. and other substances in use at the present time comprises, essentially, a moving carrier in the shape of a horizontal annular perforated table, upon which is spread the wool or other stock to be dried, the said annular table being located within an annular chamber'of an inclosing casing and having given thereto a slow revolving motion. Devices are pro vided for producing a circulation of heated air within the casing and through the table and the stock resting thereon. The stock to be dried is supplied to the table at one point in the circuit of the drier and the dried stock is discharged from the table at another point in the said circuit, usually closely adjacent the first point, after having been carried around within the annular chamber aforesaid. Heretofore in practice the discharge of the dried stock from the'table has been effected by a transversely-directed blast of air operating to blow the said stock outward from the surface of the table at the place of discharge. In some cases the results of the employment of this blast have been unsatisfactory on account of the dust and the small particles of wool with which the atmosphere becomes filled through the action of the blast. Various constructions and arrangements of discharging devices have been contrived to take the place of the air-blast device, but none thereof has given entire satisfaction in practice.

My invention has for its object to provide a discharger of novel and improved character and construction, which shall be free from the drawbacks and disadvantages that are incident to the employment of the blast of air, as well as superior to the other devices heretofore proposed for the purpose.

The inventlon is illustrated in the drawings, in which Flgure 1 shows in plan a portion of a drier of the type before mentioned with an em- Driers, of which. the

I bodiment of the invention applied thereto. 1 Fig. 2 is a detail view, partly in vertical sec- 1 tion and partly in elevation, showing the means for reciprocating the discharger. Fig. 3 is a sectional detail of the grooved and slotted crank-arm.

Having reference to the drawings, at 1 is l shown a portion of the annular perforated table to which reference has been made. At 1 2 3, respectively, are represented the outer and inner casing-shells, inclosing between them the annular chamber within which the said table is located and wherein it is slowly 1 revolved by driving connections. (Not herein shown.) At 4 is one of the runs'which are affixed to the said shells, upon which runs the marginal portions of the table rest and on which the said portions slide during the revolving movement of the table. The parts thus referred to are or may be as usual.

In Fig. l the radial line on which the stock is fed to the table is indicated at 5.

The hole which is formed in the exterior of 5 the casing to permit of the discharge of the dried stock fromthe surface of the table is indicated at 6 in Fig. 1. 1 My discharger 7 consists of a plate or strip extending across the table I from the inner shell 3 to and somewhat beyond the outer edge of the table. Its outer end projects I through the hole 6 in the outer portion of the 1 casing. The said discharger occupies an oblique position with respect to the table, it being inclined in the direction in which the table revolves from ner end is connected with the said inner shell This inclination I l l to the discharging-point.

of the discharger enables the stock upon the table to be carried by the revolution of the table against the outer or acting face of the discharger into position at the outer side of the discharger for being caused to discharge through hole 6. The said inclination defleets the stock outwardly through the said.

hole as the stock is pressed against the said acting face by the revolving movement of the table.

For some kinds of stock a fixed deflector may be employed. With the other kinds of stock, however, there is'a tendency on the part of the stock to pass under the deflector and to remain i table continues to rotate, the portion or porthe point at which its inheld by the latter while the J to the discharger.

tions thus held wedging under the deflector, so as to force it upward and to raise its lower edge from proper working position at the surface of the table. To overcome this tendency and facilitate the delivery of the stock from the table, I make provision for communicating a reciprocating movement This movement is provided for by constructing the discharger to swing with relation to the point of attachment 71, Fig. 1, of its inner end to the inner shell 3, and by the employment in connec tion with the discharger of operating meanssuch, for instance, as that which is represented in the drawingscomprising, essentially,'a rotating crank which is operatively connected to the discharger.

In the drawings, 72 is a connecting-link, which at one end thereof is joined to the outer end of the discharger and at the other end thereof to the crank-pin 73, carried by the crank-arm 74, the said crank-arm being fast upon the upper end of the short vertical shaft 75, which is supported in the bearings 76 76, forming part of a bracket or stand 77, attached to the outer shell 2 of the casing. Crank-arm 7 4 is longitudinally grooved and slotted, as shown in Figs; 2 and 3, to permit the crank-pin 73 to be radially adjusted in Well-known manner to vary the length of stroke of the deflector. The shaft 75 is rotated through the engagement of a bevelpinion 78, which is fast thereon, with a bevelgear 79, which is fast upon the outer end of a short horizontal shaft 80, the latter being mounted in a bearing 81, with which bracket or stand 77 is formed, and being furnished at its inner end with a spur-pinion 82, meshing with the teeth 83, which are provided upon the under side of the table for engagement with the rotating gear-wheel (not shown) by means of which the table is revolved. As the table revolves it transmits rotary motion through the connections which have been described to the upright shaft 75 and its crank. Each swing of the discharger in the direction opposite that in which the table is moving pushes the stock which is adjacent the discharger backward and outward upon the table, thereby'facilitating the movement of the stock transversely toward and through the discharge-opening 6. The reciprocating movement of the discharger operates to prevent tendency ofthe stock to unduly mass up against the acting face of the discharger and overcomes the tendeno T of portions of the stock to be carried under the lower edge of the discharger by the action of the moving table.

What is claimed is 1. The combination, in a drier, with an advancing carrier, of an obliquely-disposed discharger extending across the said carrier, and means to reciprocate the said discharger.

2. The combination, in a drier, with the revolving table, of the obliquely-disposed discharger extending across the said table, and the rotating crank operatively connected with the said discharger and operating to reciprocate the latter.

In testimony whereof I afliX my signature in presence of two witnesses.

MATHEW F. KEVLIN.

Witnesses:

O. D. CADY, GEO. C. HADLEY.

Images