US2690752A - Husking roll - Google Patents

Description

O.- LAKIN HUSKING ROLL Oct. 5, 1954 Filed Dec. 29. 1950 IN V EN TOR. 06cm" ai in Patented Oct. 5, 1954 HUSKING yROLL Oscar Lakin, Chicago, Ill., assgnor to A. Lakin & Sons, Inc., Chicago, Ill., a corporation of Illinois Application December 29, 1950, Serial No. 203,520

1 Claim. l

This invention relates to improvements in corn vhusking rolls and refers Iparticularly to a corn husking roll constructed of relatively flexible resilient material, said roll having a working surface of either continuous helices or discontinuous helices.

One of the features of my invention relates to corn husking rolls which may be constructed vof waste material, such as, automobile tire casings, the rolls comprising a plurality of superimposed discs cut from said casings and carried upon a rigid core.

Another feature of my invention relates to an improved corn husking roll of the character described comprising discs whose peripheries are scalloped and whose centers are vso related to a core of angular section that a helix, continuous or discontinuous, is formed by said scallops upon the surface of the roll.

A further important feature of my invention relates to a roll of the character described Whose discs have chamfered or frustro-conical peripheral defining surfaces whereby a better purchase may be had upon the husks being passed in contact with a juxtaposed pair of said rolls.

Other objects, advantages and features of my invention will be apparent from the accompanying drawing and following detailed description.

In the drawing,

Fig. 1 is a transverse sectional view of my improved corn husking roll.

Fig. 2 is a fragmentary side elevational view of the roll, parts being broken away and parts being shown in section.

Fig. 3 is a fragmentary side elevational view of a modified form of corn husking roll.

Figs. 4, 5 and 6, are sequential sectional views illustrating adjacent discs of the roll shown in Fig. 3, the central apertures of said'adjacent discs being angularly oifset with respect to each other.

Fig. 7 is a fragmentary side elevational view of another modified form of corn husking roll.

Referring in detail to the drawing, I indicates a disc which comprises a component of corn husking roll 2. The disc I is constructed from a flexible, resilient material such as rubber or the like, said disc preferably being constructed of automobile tire casings or carcasses. The periphery of the disc I is provided with a plurality of scallops 3 Which may be shaped, as shown, or may be made to conform to substantially any pattern which preferably repeats itself one or more times throughout the 360 angle of the disc.

The roll 2 is constructed from a rigid core preferably metal of angular cross-section, upon which are mounted a plurality of discs I. Each disc I is provided with a central aperture 5 which conforms with the transverse section of the core II whereby the discs may be disposed in planeparallel, face-abutting relationship upon the core.

' As a feature of the present form of my invention, the discs I Lupon the core are all identical with respect to the position of the central aperture 5 and the scallops 3, that is, the relationship between the position of the scallops and .the sides and corners of .the central aperture V5 are the same in all discs. Employing the discs I the core 4 is first twisted to permanently dispose the original angular section at increments in angularly offset relationship to form a plurality of parallel helices upon the core surface. The discs I are then threaded upon the core to be disposed in plane-parallel, face-abutting relationship. In view of the fact that the discs are all identical, a plurality of helices are formed by the scallops 3 upon the outer surface of the roll 2. O-f course, suitable end-securing means are provided to clamp the endmost discs adjacent the ends of the core, such as, for instance the clamping means shown in Siemen Patent 2,416,124, issued February 18, 1947, to maintain the discs I in pressure contact with one another.

Referring particularly to Fig. '7, a core 6 similar to core 4 is employed andupon said core a plurality of discs 'I are mounted, discs I being identical with the previously described discs I In this form of my invention, an alternate relationship between a group 8 of discs I is spaced from the next group 8 by a group 9 of dises I0. The discs I0 are of circular contour and are provided with central apertures similar to apertures 5. The discs IIB may be of smaller diameter than discs I or may be substantially the .same in diameter. Of course, it is to be understood that the alternate arrangement of groups 8 and 9 proceeds throughout the length of the roll thus formed and suitable end-clamping means (not shown) is also contemplated.

In the form of roll illustrated in Fig. '7, when a pair of rolls are employed in juxtaposed relationship, as is usual in conventional corn husking machines, the groups 8 upon one roll may be staggered with respect to a similar group upon the opposed roll so as to bring the peripheries of discs 'I on one roll adjacent the peripheries of the discs IQ upon the opposed roll. Of course, the manner in which the corn husking rolls herein are employed is not intended to linut my invention, since the invention is directed to the rolls per se regardless of the manner in which the rolls may be used or the purpose of use of the rolls.

Referring in detail to Figs. 3, 4, 5 and 6 another modification of my invention is shown. In this form of my invention thel surface of the roll may be similar to the roll shown in Fig. 7, but the relationship of the core thereof to the discs carried by the core is dierent than the relationship of the core 5 to the discs l and I0, as will be hereinafter more fully described.

In the form of my invention shown in the gures herenbefore noted, a rigid core II preferably of metal is formed with an angular section, but unlike cores 4 and t the corresponding sides of the incremental sections throughout the length of the core remain parallel, that is, the core II is untwisted. Discs I2, I3 and I4 are mounted upon the core II, said discs having peripheral scallops I5, similar to the scallops 3 hereinbefore described. However, it will be noted that the discs I2, I3 and I4 differ from one another` in that the central apertures IS, I'I and I8 respectively provided in discs I2, I3 and I4 are angularly displaced relative to each other and relative to the scallops I5. Consequently, when the discs I2, I3 and I4 are threaded upon core I I the scallops dei-lne a plurality of partial helices, or complete helices depending upon the number of discs employed.

The discs I2, I3 and I4 may be arranged in groups I9 interposed with groups 20 of discs ZI having circular peripheries, such as described in the form of my invention shown in Fig. 7 or the entire roll may comprise discs I2, I3 and I4 in which case the periphery of the roll will resemble the roll 2.

It is to be understood that in all forms of my invention the surface helices may be continuous or discontinuous. Also the pitch of the helices may be changed to suit the purpose for which the roll is to be used. In the form of my invention shown in Figs. 1, 2 and 7, the pitch of the surface helices may be changed by the number of complete twists which may be imparted to the cores 4 and 6. The number of helices formed upon the surface of the rolls will depend primarily upon the number of scallops 3 provided upon the periphery of the individual discs I and 1. This latter condition is also true with respect to the form of my invention illustrated in Figs. 3, 4, 5 and 6.

The pitch of the continuous or discontinuous surface helices in a roll constructed after the teaching of Figs. 3, 4, 5 and 6, will depend upon the angular displacement of the apertures I6, I1 and I8 with respect to each other. Of course, if the scallops I5 repeat themselves in symmetrical fashion throughout the circumference of the discs I2, I3 and I4, the angular relationship between the apertures I6, I'I and I8 changes only throughout the arc included between an adjacent pair of scallops. Thereafter, the design repeats itself.

In illustrating and describing the discontinuous helical surfaced roll, three scalloped discs constitute the groups 8 and I9 interposed with three circular discs constituting the groups 9 and 20. Of course, the respective groups 8, 9, I9 and 29 may be formed of any number of discs, and further the relative thicknesses of the various discs constituting the respective groups may be the same or different, as desired.

Another important feature of my invention resides in the peripheral surface formation of all of the scalloped discs herein described. It will be noted that in all cases, the diameter of the discs at one face thereof is greater than the diameter of said disc at the other face thereof, that is, the peripheral surfaces of the discs are chamfered or of generally frusto-conical shape. Also, it will be noted that when the discs are assembled upon the core, the smaller diameter face of each disc abuts against the larger diameter face of its neighboring disc. Accordingly, when axial pressure is applied to the stack of discs carried upon a core, and said discs are locked under the applied pressure, radial expansion of the discs takes place, but such expansion occurs to a greater degree along the greater diameter face than along the face of lesser diameter of each disc; as a result, the roll surface is characterized by having a plurality of circumferentially aligned, axially spaced relatively soft resilient tongues which greatly increase the effective purchase which the rolls obtain upon the corn husk.

A diiculty which is frequently encountered in corn husking machines of this general type wherein two juxtaposed rotating husking rolls form a nip through which the corn to be husked moves axially parallel to the rolls during the husking operation, resides in the phenomena that many of the ears of corn move through the nip without rotating and, hence, only the husk on one side of the ear is removed. By the provision of the soft, resilient tongues carried by the rolls, as hereinbefore described, this difliculty is eliminated and the ears are caused to rotate in the nip as they progress axially therethrough. Hence, the entire husk is removed from all of the ears.

It is apparent that herein is provided a roll which is particularly adapted for the husking oi corn, but it is not to be limited to this specific use, since, it may be used for other purposes. It is intended that the present invention be directed to a roll construction broadly wherever, and in whatever environment said roll may find advantageous use.

I claim as my invention:

A corn husking roll comprising a rigid, elongated central core of angular cross-section, a plurality of relatively flexible, resilient discs carried by said core in face to face relationship, each of said discs being provided with a central aperture conforming in shape and substantially in size to the cross-section of said core, said discs being disposed upon said core in alternate groups, the discs comprising one group being substantially circular and being provided with a plurality of substantially equally spaced peripheral scallops, the diameter across one face of each of said scalloped discs being greater than the diameter across the opposite face of said disc, said discs being mounted upon said core with the larger diameter face of each disc in pressure contact with the smaller diameter face of an adjacent disc, corresponding scallops upon adjacent discs comprising said group being angularly offset progressively different degrees with respect to a predetermined defining side of the angular central aperture whereby the scallops von adjacent discs of said group define a portion of a helix on the roll periphery and the discs act successively in engaging and pulling husks from an ear oi' corn and in moving the ear axially of the roll, and the peripheries of the discs comprising the remaining group being substantially circular and of a diameter less than the diameter o1 the discs comprising the first-mentioned group.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 133,270 Taylor Nov. 19, 1872 258,176 Webber May 16, 1882 308,760 Fairman Dec. 2, 1884 779,625 Scheetz Jan. 10, 1905 1,552,872 Oppenheim et al. Sept. 8, 1925 2,149,193 Stock Feb. 28, 1939 2,226,506 Morse Dec. 16, 1941 2,416,124 Siemen Feb. 18, 1947 2,509,343 Henderson May 30, '1950 2,579,906 Cook Dec. 25, 1951

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