US1251025A - Sugar-cane-mill housing. - Google Patents

Description

R. R. HIND.

SUGAR CANE MILL HOUSING.

APPLICATION FILED DEC. 2. I916.

Patented Dec. 25, 1917.

2 SHEETS-SHEET 1-.

jwenzr R. R. HIND.

SUGAR CANE MILL HOUSING.

APPLICATION FILED DEC. 2. 1916.

1,251,025. Patented m2 17.

UNITED STATES FATET TT F TQFt ROBERT BENTON KIND, O1? HONOLULU, TEE/BITCH! OF HAWAII.

SUGAB-CANE-MILL HOUSING.

Application filed December 2, 1916.

To all whom it may concern:

Be it known that I, ROBERT BENTON HIND, a citizen of the United States of America, and a resident of Honolulu, Territory of Hawaii, have invented certain new and useful Improvements in Sugar-Cane-Mill Housings; and I dohereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to.

make and use the same.

This invention relates to sugar-cane mill housings.

Mills of the three-roller type have been generally improved by the placing of hydraulic jacks at the tops of the housings which operate in various manners to overcome the uneven thrust acting along lines drawn through the centers of the top and front rollers and the top and back rollers. lVhile this has done much to advance the usefulness of the mill, there still remains in the commercial mills, a detrimental feature, and that is the binding of the top roller brasses in the housing gaps. This binding is not altogether due to differences in thrusts above referred to, but to a limited extent to the top roller getting out of horizontal alinement axially and causing a twisting of the top roller brasses and a second binding of the same in the housing gaps, so that the roller is not free to move upwardly and downwardly.

It is, therefore, an object of my invention to provide a housing by means of which the detrimental feature referred to is eliminated.

In the drawings Figure 1 is a side elevation of a mill constructed in accordance with my invention, the cap and ram-carrying links being shown in dotted lines in their inoperative positions;

Fig. 2 is a fragmental plan view; and

Fig. 3 is a side elevation.

The embodiment of the invention illustrated in the drawings includes a cap A, which is pivoted on a pin B carried by the housing, and of suflicient size to resist any shearing strains which are incident to the placing of the top roller under hydraulic pressure. A pair of links C are pivoted to a pin D, which latter is carried by the housing and are located on the opposite sides of the housing. These links are connected together at their upper ends by a rod E, to which the hydraulic ram F is secured by means of a suitable strap I. This ram F op- Specification of Letters Patent.

Patented Dec. 25, 191 *7.

sci-i511 No. 134,709.

erates in a suitable cylinder G and is prevented from being displaced from the cylinder by a tap bolt J. Thus the links C, the ram F and the cylinder G may be swung to the dotted line position illustrated in Fig. 1, when the cap A is swung to the dotted line position, or the cylinder G may be permitted to rest upon the surface L of the cap A when the latter is in the full line or operative position. In order that the cap A, which is prevented from having side thrust at one end by the pin B, may be prevented from having such thrust, at the other end, a lug K is cast upon the housing and is received in a recess M in the cap when the latter is swung to its operative position. The upper roller brass H is semi-cylindrical and fits into the can A and may be cooled by any suitable water-cooling arrangement.

When the mill is in operation, the cap A is free to rise and fall about the pivot B, so as to accommodate itself to the movement of the top roller, the hydraulic pressure being applied in the usual manner with the ram F remaining stationary and the cylinder G, which bears directly upon the cap A, moving.

It will be obvious that the objectionable binding of the brasses, as referred to in the fore-part of this specification, is overcome by my invention, and there will be little mechanical resistance to the free movement of the top roller, so that it will be permitted to float upon the bagasse feed. The hinging of the cap A will permit of a slightly greater relative opening between the to roller and the feed roller than between the top roller and the discharge roller, which is a considerable advantage.

While I have illustrated and described a particular embodiment of my invention, it has merely been for the sake of convenience, and I do not wish to be limited to that particular embodiment, as it is obvious that numerous changes may be made within the scope of the claims.

What I claim is 1. In a sugar-cane mill of the three-roller type, the combination with a housing body, of a cap pivoted at one end to the body and carrying a roller brass, and means for yieldingly holding the other end of the cap to the body.

2. In a sugar-cane mill of the three-roller type, the combination with a housing body, of a. cap mounted thereon for movement in an arcuate path, and a roller brass carried by the cap.

3. In a sugar-cane mill, the combination with a housing body, of a cap pivoted at one end to the body, and hydraulic pressure-applying means for yieldingly holding the 0pposite end of the cap to the body.

4. In a sugar-cane mill, the combination with a housing body, of a cap pivoted at one end to the body, and hydraulic pressureapplying means operable on the opposite end of the cap, said means being movable out of the line of movement of the cap about its pivot.

5. In a sugar-cane mill, the combination with a housing body, of a cap pivoted at one end to the body, means for yieldingly holding the opposite end of the cap to the body, and means for preventing the lateral movement of the cap With relation to the body.

6. In a sugar-cane mill of the three-roller type, the combination with a housing body, of means for yieldingly holding the top roller in position and arranged to permit the movement of the roller in such a direction that the distance between the upper roller and the feed roller will be increased to a greater extent than the distance between the upper roller and the discharge roller.

In testimony whereof I afiix my signature.

ROBERT BENTON HIND.

copies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patents,

Washington, D. G.

Images