US664187A - Rotary drier. - Google Patents

Description

No. 664,187. Patented nec. la, |900.l

J. TAYLon & .1. E. KoHN.

RUTARY DRIER.

(Applicmon med may 22, 1899.)

2 Sheets-Sheet l,

(un Modal.)

A TTOHNE YJ TNE ohms PETERS ca. mom-nwo.. wAsHmGToN, D. c;

No. 664,ia7.

Patented Dec. I8, |900.v J. TAYLOR& J. E. KUHN.

ROTARY .DRIER.

(Application led May 22, 1899.)

heats-Sheet 2.

MQMNS (No Model.)

SES

UNITED STATESV PATENT EETICE.

JOI-IN TAYLOR AND JOSEPH E. KOHN, LOE CLEVELAND, OHIO, AssIeNOHs To THE KILBY MANUFACTURING COMPANY, OF SAME PLACE.

ROTARY DRn-2R.

SPECIFICATION forming part of Letters Patent No. 664,187, dated December 18, 1960;

Application filed May Z2, 1899. Serial No. 717,812. (No model.)

To @ZZ w/tom it may concern: sequently rotates with the cylinder a upon Be it known that we, JOHN TAYLOR and the rotation of the latter. Cylinder b is ar- JOSEPH E. KOHN, residents of Oleveland,Ohio,` ranged in line with and consequently declines have invented certain new andV useful Imtoward the cylinder a and is open at its rear .55 5 provementsin RotaryDriers; and we dohereend and there communicates with the forby declare the following to be a full, clear, ward end of the chamber of the cylinder 0,. and exact description of the invention, such The cylinder b is provided at its forward end as will enable others skilled in the art to which with a head d', (see Figs. VII and VIII,) that it pertains to make and use the same. has an induction-aperture cl2, adapted to re- 6o ro Our invention relates to improvements in` Ceive the sugar that requires drying from a steam-driers, and more especially to a mascrew conveyer c, that is arranged horizonchine for drying sugar. tally within a stationary case d, that is open The primary object of our invention is to at the top. The head l is rigid with the case provide a sugar-drier that is simple and ineX- d, and consequently stationary, and the cyl- 65 I pensive in construction, durable, and conveninder b rotates upon the head d. The latter ient. is provided also with a spout d3, that is in With this object in View the invention conopen relation with the chamber of the case d sists in certain features of construction and at the aperture d2. The head d is provided combinations of parts hereinafter described, also with a manhole d4 for affording access to 7o zo and pointed out in the claims. the cylinder b and has another hole or aper- In the accompanying drawings, Figure I is ture d5 for affording escape of currents of hot a side elevation, mostly in central section, of air that may be forced or introduced into the a sugar-drier embodyingourinvention. Fig. cylinder ct at the latters rear end. II is a forward end elevation, mostly in trans- The shaft c of the screw conveyer is opera- 75 verse vertical section,taken centrally through tively provided forward of the conveyer-case the forward head g of the cylinder a.. Fig. with a sprocket-Wheel c2, that is operatively III isaforward end elevation, mostlyin transconnected, by means of a chain c3, with a verse vertical section, taken through the cylsprocket-wheel e', operatively mounted upon inder d and the internal tubes Z of the said a driving-shaft e, to which power is applied 8o 3o cylinder at the inner side of the tu be-connect-` in any approved manner. The shaft e is roing head lo. Fig. IV is an enlarged section tated in the direction of the arrow and is arin detail on line IV IV, Fig. III. Fig. V is ranged horizontally and longitudinally of and an enlarged section in detail on line V V, Fig.' below the Cylinder b. The shaft e below the III. Fig. VI is a section in detail on line VI rear end of the cylinder b is operatively pro- 85 VI, Fig. V. Fig. VII is a side elevation, vided with a pinion e2, that meshes with a mostly in central longitudinal section, ofc-.the spur-gear f, formed upon the exterior of an machine, and in this figure the parts are annular casting g, that has bearing upon sevshown on a larger scale than in Figs. I, Il, eral rollers a'. Preferably the forward end and III and portions are broken away to reof the cylinderovand the rear end of the cyl- 9o 4o duce the size of the drawings. Fig. VIII is inder b are secured to the said casting g, so

a forward end elevation of a portion of the that the latter forms the connection between machinein section on line VIII VIII, Fig. VII. the cylinders b and ct. ,1

Referring to the drawings, d designatesv a The casting g is hollow and has an annurotary drying-cylinder declining somewhat lar internal chamber g. The axes of the cyl- 95 toward its rear or discharging end. The cylinders a and b are coincident.- The casting g inder a is mounted upon any suitable nurncloses the forward end of the 'cylinderdaround ber of suitably-supported and suitably-arthefrear end of the cylinder b, and conseranged rollers Ct. The cylinder d at its forquently forms a hollow annular head for the Ward or receiving end is provided with a cylforward end of the cylinder a. Ico 5o inder b, that is diametrically smaller than The annular chamber g within the head g cylinder o. and suitably attached to and conis a steam-chamber. A steam-pipe hextends within the said head. The pipes 7L' 7L are con nected and in open relation at their inner ends by a T h2 with the pipe 7L. Cylinder b has two internal transversely-arranged braces b2 b2, arranged a suitable distance apart longitudinally of the cylinder and provided at the axis of the cylinder with boxes b3, affording bearing for the pipe 7L.

In the case illustrated the conveyer-case d and the connected spout d3 are arranged at one side of the pipe 7L.

The pipe h is in open relation at its outer or receiving end with the steam-supply pipe L', that is held stationary in any approved manner. ders, and to prevent leakage between the said pipe and the steam-supply pipe a stuit ing-boxjl is provided at the joint between the said pipes, which box embraces the steamsupply pipe and is supported from and rotates with the pipe 7L.

An annular head-forming casting 71: is supported centrally of and within the rear end of the cylinder ot. The said casting is hollow and provided internally with a chamber 75, that is arranged concentrically or circumferentially of the axis of the cylinder and has its ends separated by a diaphragm or partition 7&2, that extends transversely of the casting and interrupts communication between opposite ends of the chamber 7s. The chamber of the head 7c is placed in open relation with the chamber of the head g by a series of tubes 7, extending longitudinally of the cylinder a between the said heads.

The series of tubes Z in the case illustrated comprises twentyfour tubes that are arranged at equal intervals circumferentially of the cylinder. The said tubes are secured to the heads in any approved manner. The tubes are. parallel with the cylinder a, and hence decline in a rearward direction. The rear tube-connecting head 7c is provided with several radial arms 7a3, arranged at equal intervals and suitably connected together at their inner ends by a web 7a4, and the said head is suspended at the aforesaid arms from the head-surrounding portion of the cylinder a. In the case illustrated the rear head has The pipe 7L rotates with the cylin-I lany approved manner.

The forward side of the diaphragm or par! tition 702 is that side which faces in the direction in which the head 7c and the cylinder a rotate during the operation of the machine. The double-headed arrow in Fig. III indicates the direction in which the said head rotates. The chamber 7c of the head 7c next forward of the diaphragm or partition 7a2 and at the inner side of the chamber is connected in any approved manner with a system of drainpipes, which system comprises a pipe m, that extends rearwardly from the axis or central portion of the head 7c. A revolving screens, that is preferably somewhat larger diametrically than the cylinder a, surrounds the pipe m and is suitably secured to the rear end of the cylinder. Some of the sugar that is being dried in its passage through the screens is too coarse or lumpy for the mesh of the screen and is discharged at the screens rear end, whereas the liner sugar passes through the mesh of the screen into a hopper or receptacle r, provided below the screen.

The pipe m is provided at its inner end with an external annular flange m', that is suitably secured to the arm-connecting web 7a4 of the head 7e, and is in open relation with an aperture 707, formed within and centrally of the said web. The web is provided upon its inner side with a boss 708, that projects laterally or radially of the cylinder a, and has the hole 7c9,that is formed therein, open at the outer end of the boss and in open relation at its inner end with the aperture k7, formed in the web. The said boss is provided at its outer end with an external annular flange 7310. A boss 7t11 is formed upon the inner periphery of the head 7a, adjacent to the diaphragm or partition 7a2, and has its hole k12 in open relation with the chamber 7a' next forward of the said diaphragm or partition. A curved pipe 7c13 extends between the said boss 7s11 and the aforesaid boss 708 and is arranged approximately radially of the head 7a. The pipe 7013 is provided at its inner end with an external annular flange 7614, that is secured to the flange 7c10, and the pipe 7013 at its opposite or outer end is provided with an external annular flange 701', that is secured to the outer end of the boss 7511. The curved pipe 7613, together with the connections between it and the head 7c and the pipe m, forms a passage-way between the discharging end of the chamber of the head 7c and the pipe m.

The pipe m rotates, of course, with the cyl inder. The said pipe at the rear end of the screen is in open relation and connects with the drain-pipe m2, that is held stationary in To prevent leakage between the pipe m2 and the connected pipe m, a stuffing-box m3 is provided, which box embraces the pipe m2 and is supported from the pipe m.

The operation of the machine will be readily undel'stood. The cylinderaand the parts that rotate or revolve with the cylinder are actuated by motion transmitted from the driv- IOO IIO

ing-shaft e through the intergearing between the said shaft and the cylinder. The screw conveyer c discharges sugar into the cylinder b, wherein the sugar is dried in a measure. The sugar passes from the cylinder b into and through the steam-heated chamber of the cylinder a into the screen. Too much moisture with the sugar upon the latters passing into the cylinder d would result in the adhesion or sticking of sugar upon the tubes, and hence partially drying the sugar before the introduction of the sugar into the cylinder ct is desirable. The steam passes from the steam-supply pipe t' into lthe pipe h, thence is conducted by the branch pipes h h' into the forward head g of the cylinder, and thence the steam passes into the rearwardly-extending tubes Z. A large portion of the steam will have condensed before reaching the rear head k, and some will condense within the said head, and the water resulting from the condensation of the steam is discharged into the drain-pipe system at the discharge opening or outlet k12 next forward of the diaphragm or partition of the said head k.

Our improved machine is more especially distinguished from sugar-driers heretofore made by the simplicity, convenience, efficiency, and durability of its peculiar construction that forms the subject-matter of this application.

What we claim is- 1. A drier of the character indicated, comprising a rotary cylinder declining in a rearward direction; a series of declining tubes arranged 'longitudinally within, and at suitable intervals circumferentially of, the cylinder; means for supplying steam to the forward ends of the said tubes; means for draining the tubes at their rear ends; another rotary cylinder connected with the forward end of and arranged in line with the first-mentioned cylinder and provided, at its forward end, with a stationary head having an inlet for the material requiring drying, a steam-pipe eX- tending centrally through and arranged axially of the forward cylinder, and terminating, at the rear end of the said forward cylinder, in branch pipes connected and in open relation with the forward ends of the aforesaid tubes.

2. A drier of the character indicated, comprising a rotary cylinder declining in a rearward direction; a series of declining tubes arranged longitudinally within and at suit-able intervals circumfereutially of the cylinder; another rotary cylinder connected with the forward end of, and arranged in line with? and diametrically smaller than, the first-mentioned cylinder; a hollow head surrounding the rear end of the forward cylinder and closing the rear and tube-containing cylinder at the latters forward end around the forward cylinder,which head is suitably secured to and forms the connection between the cylinders; a steam-pipe extending centrally through and axially of the forward cylinder and connected and in open relation, at the rear end of the said cylinder, with the chamber of the aforesaid head, and the braces b2 internally of the said forward cylinder and provided with boxes b3 affording bearing for the said steam-pipe, substantially as and for the purpose specified.

3. In a drier of the character indicated, the combination, with a rotary cylinder; a system of tubes arranged longitudinally within and at suitable intervals circumferentially of the cylinder, and means for supplying steam to the forward ends of the said tubes; of an annular head supported within the rear end of the cylinder and having a continuous chamber extending circumferentially of and around the cylinder and in open relation with the rear ends of the aforesaid tubes; a partition or diaphragm arranged transversely of and within the head and interrupting endless continuity in the said chamber circumferentially of the cylinder, and a drain-pipe system comprising a passage-way that is in open relation with the said chamber adjacent to that side of the aforesaid diaphragm or partition that faces in the direction in which the cylinder and the aforesaid head rotate during the operation of the machine.

4E. In a drier of the character indicated, the combination with a rotary cylinder; a series of tubes arranged longitudinally within and at suitable intervals circumferentially of the cylinder, and means for supplying steam to the forward ends of the said tubes; of an annular chambered head supported Within the rear end of the cylinder and having radial arms extending from the heads inner periphery inwardly, which head has its chamber in open relation with the aforesaid tubes; a drain-pipe system connected with the said chamber; means instrumental in conducting Water accumulating within the said chamber into the drain-pipe system, and rods arranged radially of the outer side of the aforesaid head, which rods are connected, at their inner ends, to the arms, and have their other ends connected to the cylinder.

5. In adrier of the character indicated, the combination, with a rotary cylinder, a series of tubes arranged within and longitudinally of the cylinder, and means for supplying steam to the forward end of the said tubes, of a'u annular head 7a supported centrally of the rear end of the cylinder and having a chamber extending circumferentially of the said cylinder and in open relation with the rear ends of the aforesaid tubes, which head is provided with the internal diaphragm or partition 7a2 interrupting continuity in the aforesaid chamber circumferentially of the cylinder, a boss ku formed upon the inner periphery of the said head adjacent to the diaphragm or partition and having the hole therethrough in open relation with the chamber of the head next forward of the said diaphragm or partition, and a system of drain-pipes connected IOO IOS

IIO

and in open relation with the interior of the said boss, substantially as and for the purpose Set forth.

6. In a drier of the character indicated, the combination with a rotary cylinder, a series of tubes arranged Within and longitudinally of the cylinder, and means for supplying steam to the forward ends of the said tubes; of an annular head 7c supported centrally of the rear end of the cylinder, and having a chamber extending circumferentially of the cylinder and in open relation With the rear ends of the aforesaid tubes, which head is provided with the diaphragm or partition 7a2, the boss k, the radial arms k3, the web lo,

JOHN TAYLOR. JOSEPH E. KOHN.

Witnessesz' C. H. DORER, A. H. PARRATT.

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