US1451164A - Cane-crushing apparatus - Google Patents

Description

Patented Apr. 10, 1923.

HENRY HURTER, OF ST. LOUIS, MISSORI, ASSIGNOR T0 FULTOIJ IRON WOIR'KS COM- IPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF DELAWARE. v i' CANE-CRUSHIG APPARATUS.

Application filed 'May 10,

T0 aZZ 'whom it may concem:

Be it known that I, HENRY HURTER, a citizen of the United States of America, a resident of the city of St. Louis, in the State of Misso-uri, have invented certain new and useful Improvements in Cane- Crushing Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in cane crushing apparatus, such as cane mills or crushers having rolls provided with peripheral ribs adapted to act upon the cane to express the juice therefrom. Rolls of this general type, provided with peripheral ribs and grooves, are old and well known in the art, the present invention being limited to certain elements, or combinations of elements, located at the ends of the rolls to obstruct and retard juice and cane tending to escape at the ends of the rolls. rllhe side margins of the moving mass of cane lie at the end portions of the rolls, where they are subjected to pressure tend'ing to spread the mass of cane, thereby tending to force some of the cane and juice onto the extreme end faces of the rolls. My object is to confine the traveling web of cane between the end portions of the rolls in such a manner that the pressure of the rolls will not result in free escape of cane and juice at the ends of the rolls. Heretofore, the grooves and ribs at the extreme ends of the rolls have been identical with all of the other grooves 'and ribs, each rib being usually V-shaped in cross section, and as a result of the pressure on the cane passing between end portions of the rolls, juice and trash were forced outwardly and permitted to escape along the inclined faces of the ribs and grooves at the extreme ends of the rolls. These undesirable results were partly due to the pressure tending to spread the mass of cane or bagasse, and partly to the end inclines allowing crushed cane and juice to be forced from the ends of the rolls.

The preferred form of this invention includes rolls having end ribs and end grooves tending to preventfree escape of cane and juice, the end grooves being provided with walls forming abrupt Shoulders tending to prevent lateral displacement of the material, as will be hereinafter pointed out.

1920. seriarrro. 380,381.

of a cane crusher, or cane mill, embodying the features of this invention.

Fig. IT is a transverse Vertical section taken approximately on the line II-II, F ig. I.

Fig. HI is an enlarged Vertical section illustrating the ribs and grooves at the end portions of the rolls.

To illustrate the preferred form of the invention, I have shown side frames or housings 1 provided with suitable bearings for the shafts 2 of crushing rolls and B. Each of these rolls is provided with peripheral crushing ribs 3, preferably V- shaped in cross section. The ribs of each roll extend into corresponding circumferential grooves in the other roll.

The top roll A is provided with end' ribs 4 of less depth than the intermediate ribs 3, and these end ribs extend into correspondingly formed end grooves 5 in the lower roll B. The end ribs 6, on' the lower'i roll B, are of less depth than the intermediate ribs. The lower roll is also provided with end flanges 7 overlapping the ends of the upper' roll. vAs shown most clearly in Fig. III, each end] groove 5 is provided with a base wall 8 parallel with the aXis of the roll, an outer side wall 9 at approximately a right angle to the base wall 8, and an inner side wall 10 at an obtuse angle to the base wall 8. The abrupt Shoulders formed by the walls 9 tend to prevent lateral displacement of the material which may be forced into the end grooves 5, and the end ribs 4 conform to the Shape of said end grooves so as to confine the'material in the Corners formed by the abrupt Shoulders 9 and' the base walls 8. As a consequence, the material under pressure tendingto spread in the end grooves 5 cannot freely escape at the ends of the rolls, lateral displacement of the material being limited by the abrupt Shoulders 9.

I will now describe additional structural details tending to prevent excess packing of material in the end grooves 5. :All of the intermediate ribs 3 may be notched, as shown at 11, to provide 'gripping elements lUO in the form of hooks Whefeby the cane is eaught Vand pulled into the epaces between the intermediate Yibs, but the end rihs 4 are comparatively smooth, so as to avoid any undue tendenoy to drag the material into the end grooves 5. Figs. II and III show that the peripheral faces of end ribs 4: are smooth and deVoid of notohes or the like.

As a furthei' precaution, to ininimize the delivery of cane to the end grooves 5, baffles 12 are located at the intake sides of the rolls, as shown in Figs. and II, and these baflies lie in the course of the incoming cane,

i' Where they form obstl'uotions tending to prevent delivery of cane to the extreme ends' of the i'olls'. Each bafle 12 has an' arcuate lower edge located in an end' groove 5 and contaetiiflg` With the base Wall 8 of the groove. Each baffie also has an upper alfeuate edge conforming to` and eontacting with the smooth pelfiphery of an end rib 4:.

I elaim:

In an apparatus for` expressing juice from cane, a pair of cooperatng rolls each having 'ie'riph'ei'al i'ibs and grooves adapted to receive the cane, the pei'ipheral grooves at the ends of one roll being of les's depth' than the intermediate groovee, and the end I'ibs of thev other roll being of lese de'pth' than the intermediate i'ibs'.

n testimony that I olaini the foreg'oin'g I hereunto afi'ix niy signature.

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