DE244041C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 244041 CLASS 29 «. GROUP

JOHN DOWNHAM in BURY, Engl.

Drums running conveyor. Patented in the German Empire on July 26, 1910.

For this registration, the examination according to the Union Treaty of

March 20, 1883

December 14, 1900
recognized on the basis of registration in Great Britain on October 20, 1909.

the priority

In the known defibering machines, the plant parts are fed to the defibering drums by conveyor belts. The defibering drums revolve either in troughs with a completely concave surface or with a diagonally protruding stripping surface. In the latter arrangement, the blade is gradually subjected to the action of the defibering drum as it passes through in the transverse direction, so that initially a small part, for example the tip, of the blade is subjected to the combined action of the blades and the diagonal drum surface. Then the sheet is stripped further and further as it moves along the projecting surface of the defibering drum, until finally all the fibers are processed by the blades of the drum.
The present invention relates to a Ma-

ao machine in which the sheet is first fed to squeegee rollers in the transverse direction, whereupon it goes into a defibering drum which removes the meat from one end of the Sheet removed. Then the sheet is fed through conveyor belts to a second defibering drum fed, which strips the remaining meat from the other end. The troughs of The defibering drums used now have a projecting diagonal in a new way An area of consistently the same width, so a gradually progressing stripping of the meat is made possible by the fibers without damaging them.

As a result, only a small part of the blade length is always a wiping effect at the same time subject. As soon as this part is stripped off, the effect of the rotating blades ceases on the fibers so that the quality of the fibers obtained is better. Furthermore is the loss of fiber material and the required driving force are significantly lower than with the known ones Machinery.

Fig. Ι is a side view.

Figure 2 is a top plan view of the complete machine with the improvements.

3 and 4 show the device for transfer in enlarged individual representations of the sheets from the first defibering drum to the second in side view or top view.

Figures 5 and 6 show details of the improved stripping trough in front and side views, respectively represent.

In the figures denote:

α the wheels or pulleys that support the endless conveyor belts or belts b , c a pair of corrugated nip rollers that rest in adjustable spring-loaded bearings, d a stand or frame that supports the roller bearings, e the usual pair of endless conveyor belts, f the wheels or guide disks over which the conveyor belts run, g the support arms, h the frames on which the

Claims (1)

are seated, i the stripping trough resting on the base plate, / the usual defibering drum, k the pipe which supplies water to the trough and the drum during stripping, I the tensioning rollers, which rest on the conveyor belts e and by means of spiral or other suitable springs be pressed downwards, m the endless transmission chain or belt, which runs over wheels or guide pulleys η and is pressed by them onto the endless chain or belt ο, which runs over wheels p supported in stands q and is driven by them, r the Guide in which the endless chain or belt ο works, s a guide for holding the stripped part of the sheet between the conveyor belts β ² , which feed the sheet to a second trough i ² and a second defibering drum / ² , between which the rest Part of the sheet is stripped. The members e ² , f ² , g ² , h ² , i ² , / ² , k ² and I ² correspond to the mentioned members e, f, g, h, i, J, k and I of the first part of the machine . The trough i (and i ² ) is equipped according to the present invention with a diagonal rail or rails t , so that when the leaves χ pass through the trough in the direction of the arrow in FIG is effected completely by the drum / (or J ² ) on the diagonal rail t placed in the trough when the sheets pass between this diagonal rail and the blades of the defibering drum. Only a small length of each sheet is subjected to the wiping action at any moment, instead of the whole sheet or a large part of it being subjected, as occurs in the known machines, to the action of the blades of the defibering drum, which rotates at high speed. The improved design of the trough and the resulting diagonal or gradual wiping action prevent the individual leaf fibers from breaking and consequently excessive waste. The machine works in the following way. The leaves are conveyed on the endless tables 5, which they feed to the gripping point of the revolving nip rollers c, by means of which the meat or the fruit pulp and the skin of the leaves are completely broken up. From the nip rollers c, the crushed sheets are fed through the endless belts b to the endless conveyor belts e , by which they are conveyed in the usual manner into the specially designed trough i. You step between this and the blades of the rotating drum / through and are stripped on the 'diagonal rail t in the manner described. This design of the trough is the essential characteristic of the present invention. During the stripping of the meat or pulp from the first parts of the leaves, water is passed on them through the pipe k in the usual manner. The partially stripped sheets emerge from the space between the trough i and the drum /, the stripped portion of the sheets being grasped by the endless chains or belts 0 and m before leaving the conveyor belts e and through them to the second set of endless conveyor belts e ² , which carry the unstripped part of the leaves forward and cause it to be stripped in the manner already described between the special trough i ² and the blades of the rotating defibering drum / ² , with water being fed from the pipe k ^2. The sheets, which are finally fed out by the conveyor belts e ² are completely stripped, while the fibers are in completely unbroken state exposed from the meat or pulp and can be ^[packaged dried and baled. It will be readily understood that it is most advantageous to use double defibering drums and troughs and to strip off one end of the sheet first and then the other in one continuous operation and in the manner described. If necessary, however, the machine can only be equipped with a single defibering drum and a single trough with no transfer device, in which case the sheet must pass through the drum and trough twice to be completely stripped from one end to the other. Godfather ν τ-An SPRU CH: Machine for the extraction of web fibers from plants with two revolving, Deflecting drums offset from one another, past which the plants with the fibers are guided across the drum axis and a conveyor device running between the two drums, thereby characterized in that diagonally to each drum surface or to the beater bars of the drums a relatively immovable one Bar of continuous equal width 'is arranged between the and the drum strips the fiber material is carried across to both. 1 sheet of drawings.