DE35632C - Dryer for coffee and other tropical products - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 82: Drying devices.

(Holland).

Dryer for coffee and other tropical products.

Patented in the German Empire on August 25, 1885.

Drying the meaty casing using a jet of water Freed coffee beans are done in such a way that they are converted into stone, sloping ones Bins with an area of several hundred square meters were brought and here under exclusion any other artificial heating solely to the effect of the sun's rays to be left. In the nights that always come through in the tropical highlands Damp precipitation is characterized, as well as when it rains, the coffee beans are in piles brought together and covered with canvas or leaves, and then later in a sunny Heaven to be spread out again. This type of drying does not require alone a lot of time and work, but also costs a lot of material and also has the Disadvantage that, depending entirely on the weather, one is very often prevented to perceive favorable conjunctures, as well as the correct time of shipment. Since now in The coffee harvest is usually most extensive in the wet years, so you can rest assured here drying counteracts most of the difficulties, so that this is often insufficient Mafse happens, as a result of which the coffee is musty and therefore of inferior quality will.

To remedy these evils, as well as the costly masonry work of several To make a hundred square meters unnecessary, the applicant has constructed an apparatus who work continuously, d. H. drying the coffee day and night, in rain and sunshine, makes possible. It consists essentially of two Divide, namely:

ι. ■ a car and

2. a room, lockable by means of doors and windows, in which the carriage can be driven in.

The carriage A running on rails is constructed entirely of iron and, apart from the proportions of size, has a box-shaped construction similar to the open freight wagons used in railroad operations. The bottom C of the box intended to hold the coffee consists of perforated sheet iron or wire mesh. The same can be fixed or, if the latter is used, also movably attached. In the latter case, the wire mesh runs like an endless belt over two rotatable rollers attached to the head ends of the carriage. As it rotates, the fabric moves in the known manner, and the former can be regulated by any known mechanical device so that the wet coffee heaped on the floor at one end of the cart when it arrives at the other end of the cart, completely dry and suitable for shipping.

The room, which is used to accommodate the car just described during the nights and in the rainy season, consists of a roof-shaped building B, the gable ends of which C with doors for extending and retracting the car.

gens, as well as are provided with windows. Fans Y are installed on the ridge of the building. Two ovens O are prepared from iron or Champtte on the rear side of the building in the ground which are approximately io cm surrounded by an iron shell at the distance of up 20th For the purpose of smoke extraction, pipes a from each stove go through the interior of the building to the chimney D and thus contribute to the warming of the entire room. The roof surfaces are constructed of iron and can be single or double-walled. Even if the latter construction is not absolutely necessary, it is nevertheless recommendable, since the double walls, which are arranged at a distance of about 20 to 25 cm, can be used for good air circulation, which has a very favorable effect on the drying of the coffee.

The air in the carriage house is in the Heated so that it is passed between the mantle and furnace before it enters the room. However, the warming of the air can also be known to some other Wise brought forth.

The warm air now passes through the coffee lying on the perforated floor, which is stirred by a worker and pushed towards the rear of the car. If, as already noted, the floor is arranged to be movable, this work can be carried out mechanically. When the dry, warm air is passed through, the water particles attached to the coffee are transformed into steam, which rises and flows through the openings e in the top of the roof into the space formed by the two double walls and between the two walls, going down again steps between the jacket and the stove, heats up again and takes the same path all over again. On the way between the two double walls, the air cools down a lot and the water is deposited on the outer wall, from where it is then drained outwards through channels k, running down this wall.

In case you want to work with fresh air, there are doors under the stoves attached, through which, as soon as they are opened, fresh air between the mantle and the stove occurs, which, heated here, continues its way into the room and, with water vapor saturated, is extracted by the fans mounted on the roof. The latter can be placed in and on our activity from below.

. The wet coffee is brought from the chimney side by ordinary dump trucks onto the car A located in the building C , while the dried coffee is taken away by a second car h set up on the other side of the building.

The building or carriage house B is listed as a continuous roof of simple construction and of wood, stone, masonry or iron.

When the sun is shining, the wagon with the dry material is driven by horses or a winch pulled out of the building, and now the dry business is left to the sun alone; at night or when it rains, on the other hand, the car is pushed into the closed room and can now be used as required the drying process can be accelerated by heating.

After the harvest or. once the drying process is complete, the building can be used as a storage facility or in any other way during the rest of the year. For this purpose I have to remove the car and the tubes a lying on the floor of the room from the building.

With this device, which is just as simple as it is practical, coffee and others become tropical Producte not alone like in less time. previously made marketable, but through the same determined dry process, as this is not interrupted by anything, also, better quality of goods.

Claims (1)

Patent claim: A drying apparatus for coffee, consisting of the tent-like building B with movable end walls and a double roof, in the interstices of which the air heated by ovens ο ο , after it has permeated the coffee on the rail car A , enters through the openings ee , where the air that is carried Water vapor condenses and returns to the ovens ο ο , while the condensation water is discharged through the channels k . For this purpose Ί sheet of drawings.