US1256921A - Husking-rolls. - Google Patents

Description

W. W. MORRAL.

HUSKING ROLLS.

APPLICATION FILED SEPT. 18, 1913.

1,86 9% Emma Feb. 19,1918.

wwwoz' WMWM WILLIAMWAYNE 'MORBAL,

OT'MORRAL, OHIO, ASSIGNOR 0F ZINE-HALF T0 SAIIIZTEL E.

MORRAL, OF MORBAL, OHIO.

HUSKING-ROLLS.

Specification of Letters Patent.

Patented Feb. 19, 1918.

Application filed September 18, 1913. Serial No. 790,428.

To all whom it may concern:

Be it known that I, WILLIAM W. MoRRAL, a citizen of the United States, residing at Morral, in the county of Marion and State of Ohio, have invented a certain new and useful Improvement in Husking-Rolls, of which the following is a specification.

This invention relates more particularly to husking devices in which a pair of rapidly and oppositely rotating rolls having resilient frictional surfaces is employed to act on the husks to detach them from the-ear proper.

I have found that rubber constitutes the best material to provide such a surface but the experience has been that if rubber alone be used small cars and pieces become lodged at points between the rolls thereby generating heat in the rolls permitting their rapid destruction by the lodged pieces.

The object of this invention is to protect the rubber from any protracted action of this kind; and the invention consists in the provision of a hard rib in each of the rolls of the pair and so arranging the rolls that they cooperate to break down and discharge the offending part.

Examples of the invention are shown in the accompanying drawings, set forth in the following description and then pointed out in the claims.

In the said drawings Figure 1 is a cross section on the line mm Fig. 2.

Fig. 2 is a plan view of one of the rolls viewing that side containing a row of pins.

Fig. 3 is a view like Fig. 2 showing the pins in staggered arrangement.

Fig. 4 is an end view of a pair of rolls, such as shown in Fig. 1, illustrating how they operate on an ear of corn.

Fig. 5 is a cross section of a roll illustrating a pin before it is riveted or secured in a cored roll, such as shown in Fig. 1.

Fig. 6 is a cross section illustrating how a pin can be riveted or secured to an uncored roll.

The metallic portion or core 10 of the roll can be made in the form of a tube with inwardly extending end flanges 10 as best shown in Figs. 1 and 5 or they can be made without such flanges as shown in Fig. 6. When the roll is made with the flanges it is said to be cored because a core of sand is specially supported in the mold. to form the peculiar cavity in the casting. In constructing the roll, as shown in Fig. 1, the outer surface of the metallic cylindrical core 10 is provided with a layer of strong canvas or the core of the roll has no end flanges, can be countersunk as shown at 15 to provide room for spreading the inner end of the pin if the mandrel employed closely fits the bore or opening of the core. In either case the heads of the pins are left exposed so as to form practically a hard rib.

In Fig. 2 the roll is shown as provided with a single row of pins in a straight line with the heads close together. In Fig. 3 the roll is shown as provided with two rows in straight lines, the pins being in alternating or staggered arrangement and with the pins of one line standing across circumferential paths around the roll between the pins of the other line. In each illustration the arrangement of the rows of pin heads is shown as lying in a line or lines substantially parallel to the axis of the roll or substantially at right angles to the direction of rotation of the roll. Such an arrangement more effectively operates to cut or crush refractory husks or pieces and therefore prevent heating and wear of the rubber envelop by continuous friction at a given point. But the pins are not necessarily arranged in exactly straight lines. In Fig. 4 the action of the two hard lines of pins on a husk is attempted to be depicted.

Where the hard rib is formed of pins the rubber envelop is easily first applied. And where the pins are in staggered arrangement as shown in Fig. 3 the envelop is not so liable to be torn from the core as where they are placed in contiguity as shown in Fig. 2.

In practice the rolls are secured in pairs on spindles rotated in opposite directions (see'arrows) and the ears of corn are fed into the space between the uppermost s1de of the pair as well understood. The func- 1. A husking roll consisting of a metallic core provided with 'aresilient envelop, and

a series of non-resilient pins secured in the core and arranged in a line substantially at right angles to the direction of rotation of the core and having their ends exposed at the outer surface of the envelop.

2, A husking roll consisting of a metallic core having a completely enveloping elastic cover and non-resilient pins rigidly connected with the core having their ends projecting through said cover and terminating substantially at the surface thereof.

3. A husking roll consisting of a metallic core having a completely enveloping elastic cover and non-resilient pins spaced from each other and rigidly connectedwith the core having their ends projecting through said cover in position to intersect all circumferential lines around the cover.

4. A husking rollconsisting of a metallic core having a completely enveloping elastic cover and non-resilient headed pins rigidly connected with the core and having the ends of their heads substantially coinciding with the surface of the elastic cover, said pins 7 located to intersect all circumferential lines around the working surface of the cover.

WVILLIAM WAYNE MORRAL. Witnesses: C. J. SCHULTZ,

JESSIE SCHULTZ.

Copies of this patent may be obtained for five cents each, by addressing the "Gbmmissioner of Patents,

Washington, D. 0. l c

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