US1470703A

US1470703A - Coffee-drying machine

Info

Publication number: US1470703A
Application number: US565468A
Authority: US
Inventors: Villavicencio Miguel Angel
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-06-02
Filing date: 1922-06-02
Publication date: 1923-10-16
Anticipated expiration: 1940-10-16

Description

Oct. 16 1923. 1,470,703 M. A. VILLAVICENCIO COFFEE DRYING MACHINE 7 Filed June 2, 1922 I 3 Sheets-Sheet 2 JZQQ. 722M560 ewe 0,

WITNESSES A'TI'ORNEY Get. 16, 1923. 1,470,703

M. A. VILLAVICENCIO COFFEE DRYING MACHINE Filed June 2, 1922 3 Sheets-Sheet 3 H o 1: I .4. as 2 g! 25 ll II flag. WZanwen/cw,

NW" W 4 6 I NEY WITNESSE S ATTOR Patented Get. 16, 1923.

arise starts a aite MIGUEL ANGEL VILLAVICENCIO, on CARACAS, VENEZUELA.

COFFEE-DRYING MACHINE.

Application filed June 2, 1922. Serial No. 565,468. 1

To aZZ whom it mag concern. 7

Be it known that I, Mrennr. A. VILLAVI- onNoro, a citizen of Venezuela,residing at Caracas, Venezuela, South America, have invented new and useful Improvements in Coffee-Drying Machines, of which the following is a specification.

This invention relates to apparatus for treating coffee to render it fit for. use and has for its object the provision of a novel power driven roaster ordryer equipped with means for forcing heatedvair through the coffee as it is agitated during turning movement of a containing drum.

An important object is the provision of a device of this character which is provided with novel bearing means for supporting the drum during its rotary movement, whereby to take the weight off of the bearings and off of the hot air conducting pipe through whichpasses the air used, for effecting the drying or roasting.

Another object is the provision of a device of this character which includes only a few parts which are moreover s0 connected and arranged that they maybe disassembled to permit transportation of the device in knocked-down. condition in a very simple manner and even upon horse back or a mule pack, the device being thus advantageous for use on plantations and other places where the ordinary cumbersome roasting machines would be inconvenient.

An additional object is the provision of a device of this character which will be simple and inexpensive in manufacture, highly eflicient in use, cheap to'operate, durable in service and a generalimprovement in the art.

With the above and other objects and advantages in view, the invention consists in the details of construction to be hereinafter more fully described and claimed, and illustrated in the accompanying drawings, in which: v a

Figure 1 is a side elevation of the device withparts broken away and in section,

Figure 2 is an elevation taken at right angles to Figure 1 partsbroken away and in section, i a

Figure 3 is a detail sectional view through a portion of the drum showing the baffle arrangement therein, i i i 1 x Figure 4 is a detail j sectional view taken vertically at the axisof'the drum,

Referring more particularly to the drawings the numeral 10 designates the support ing base of the machine from which rise a plurality of uprights ll upon which are mounted bearings 12 for a shaft 13 carrying a drivenpulley 15 and a drive pulley 14:. This shaft also carries a worm 16for a purpose to be described' The frame of the de vice further includes a cradle formedof downwardly extending semicircular bars 17 i which are secured to the upper ends of certain of the uprights 11 and which are braced by inclined bars 18 connected as shown.

The numeral 19 designates cross bars-which areconnected with the upper ends of all but one end most upright 11 and which are also connected with the upper ends of the cradle bars 17. Mounted upon these bars 19 are bearings 20. Journaled upon the bars 17 portion 25 constituting the outer portionof the drum. This drum bears upon the rollers 21 so that the eight is borne. entirely thereby instead of coming upon the bearings 20. The outside wall 25 of the drum is provided are rollers 21 which may be of any desired 24; to which is secured the cylindrical shell with openings 26 for theinlet of the coffee beans to be roasted or dried and associated with these openings are slidingcover plates 27 suitably mounted. The shelly25 is also provided with outletopenings 28 adapted to be covered and uncovered bysliding doors or plates 29 similarly mounted. The openings 28 and platess29 are similar to the openings 26 and plates 27 and either may be used fonplacing coffee beans within the device before roasting and for removing,

them after the roasting is completed. The drum may be divided rintoiany 'numberof compartments as may be preferred so that different grades of coffee may be roasted at have shown two compartments. It should 30 for the escape of moisture and air from the same time and in the present instance I 1 also be stated that the outer periphery ofthe drum is provided with perforated portions the coffee while it is being ,dried orv roasted. i

The means for effecting the heating or roasting constists of a small furnace structure 31 having an outlet stack 32 within which is located a serpentine flue 33 into one end of which leads a pipe leading from a centrifugal blower 35 which has its shaft provided with a pulley 36 about which is trained a belt 37 which is, in turn, trained about the drive pulley 14. Leading from the upper end of the flue 33 is a pipe 38 which connects with the center of a horizontally disposed U-shaped distributor pipe 39 which straddles the drum 22 and which has its ends leading into the, center of the drum at opposite sides. The numeral 40 designates a thermometer which is located in one of the arms of this distributor pipe near the point of entrance into the drum.

Each drum compartment may be subdivided by radial partitions '41 which terminate short of the distributor pipe and which have their inner ends connected by curved wire screens 42 which will permit the passage of the hot air while preventing the coffee beans from engaging the outlet ends of the distributor pipe. The numeral 43 designates arcuate concentric baflles of different lengths and the numeral 44 designates a compound curved baflie which is located inwardly of the baffles 43.

In the operation of the device it will be seen that coffee beans to. beroa ted or dried are placed within the drum compartments through the respective feed openings 26. When the furnace is in operation and the shaft 13 is driven by power applied to the puley'15, the blower 35 will be operated and the drum will be rotated owing to the engagement of the worm 16 with a worm wheel 45 mounted upon one side of the drum. As the drum rotates the coifee beans will be shaken about and throughly agitated by 'means of the bafiles 43 and 44 so that all the beans will be properly sub jected to the action of the hot air which enters the drum through the distributor pipe 39. The air is of course forced by the blower into and through the serpentine fine 33 located within the stack, the air being subsequently forced through the pipe 38 and into the U-shaped distributor pipe 39'which discharges into the drum. After circulating through the coffee the air passes out through the perforated portions 30 of the drums carrying with it whatever moisture is removed from the coffee beans.

From the foregoing description and a study of the drawings it will be apparent that have thus provided a simply constructed and consequently inexpensive machine for drying coffee in a very rapid and effective manner, very little power being necessary owing to the lightness of construction and'the peculiar mounting of the drum which reduces friction to the 'miniwill be noted that the parts, are

easily capable of separation so that the entire machine may be disassembled and transported from place to place wherever the use is desired, the device being thus of great utility on coffee plantations where the usual cumbersome machinery would be unsatisfactory.

lVhi-le I have shown and described the preferred embodiment of the invention, it is of course to be understood that I reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention I claim:

1. A machine of the character described comprising a supporting frame including a cradle provided with rollers, a drum rotatably supportedwithin said cradle and provided with inlet and outlet openings, means for rotating the drum, an means for forcing a blast of hot air into the drum at the center thereof, consisting of a furnace having a stack, a blower, a Serpentine. flue within the furnace stack connected with the blower and a distributorpipe leading from the flue into the drum.

2. A machine of the character described comprising a supporting frame including a cradle provided with rollers, a drum rotatably supported within said cradle and provided with inlet and outlet openings, means for rotating the drum, and means for forcing a blast of hot air into the drum at the center thereof, consisting of a furnace having a stack, a blower, a, serpentine flue Within the furnace stack connected with the blower and a distributor pipe leading from the flue into the drum, said distributor being of U-shaped and arranged in straddling relation to the drum with the ends of its arms directed toward each other and lead ing into the drum at its axis.

3. A'machine of the character described comprising a supporting frame, arcuate bar carried by the frame, and constituting a cradle, a series of rollers journaled on said arcuate bars, a drum rQt'atably mounted within the cradle and resting upon said rollers, a worm wheel carried by the drum,

a shaft journaled in said frame and provided with driving means, a, worm on said shaft meshing with said worm wheel, and means for forcing a blast of hot air into the drum at the center thereof,

4. In a coffee drying machine a rotary drum of cylindrical'form divided into. separate compartments, radially extending. partitions subdividing each compartment, curved screens connecting the inner ends of the partitions, means for rotating. the drum, means for forcing, a blast of heated air into. the; drum within said] screens,

5'. In a cofiee drying machine a; rotary drum of cylindrical form divided into sep-' arate compartments, radially extending partitions subdividing each compartment, curved screens connecting the inner ends of a the partitions, means for rotating the drum, means for forcing a blast of heated air into the drum Within said screens, a pair of concentric baffles of unequal lengths Wit/hi1) each compartment of the drum, and a compound curved bafile located inwardly of the pair of baflies.

In testimony whereof I affix my signature.

MIGUEL ANGEL VILLAVIGENCIO.