US71606A - Improvement in gbinding-mills - Google Patents

Description

@uiten faire atut @ffina- THOMAS GREY, OF CLARENCE, NEW YORK, ASSIGNOR TO HIMSELF AND HENRY LAPI, OF THE SAME PLACE.

Letters .Patent No. 71,606, dated December 3, 1867.

IMPROVEMENT IN GRIN DING-MILLS. y

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TO ALL WHOM` IT MAY CONCERN:

Be it known that I, THOMAS GREY, of Clarence, in the county of Erie, and State of New York, (assigner to himself and Henry Lapp, of the same placc,) have invented certain new and useful Improvements in Grinding- Mills; and do hereby de clare that the following is a full and exact description thereof', reference being had to the accompanying drawings, making a part of this specification, in which-` Figure I is a longitudinal vertibal section.

Figure His an end elevation.

Figure III is a top plan View.

The nature of this invention consists in the construction and use of a corrugated curved plato, supported in heads or blocks which slide and are adjustable within slots in the main frame, and upon which the said plate is allowed to swing, the lower end ofthe plate being also made adjustable by means of a set-screw.

Letters of like name and kind refer to like parts in each of the figures.

A represents a corrugated roller, of cast or wrought iron, which revolves in bearings a formed in the veri tical side plates B. A crank, b1, and a fly-wheel, b2, are placed upon the shaft on opposite sides ofthe roller. C represents a. curved plate, one side of which, being that which is contiguous to the rollerA, is alsol corrugated. The upper edge of the plate is extended laterally in a manner to form journals upon each side thereof, which journals are supported in movable lbearings c. These bearings consist of two sliding heads, which may be adjusted in any desired position within the horizontal slots c2 formed in theside plates B, by means of thesetscrews d d. One of these set-screws bears against each side of the bearing el in a manner to hold the same firmly in any desired position. The lower end of the plate C being allowed to swing upon the journals above mentioned, is also made adjustable independent of the top edge thereof. VE represents a cross-brace, interposed transverselyrbetween the side plates B in a position opposite the lower end of the plate C, and connected firmly to 'said side plates. F represents a set-screw, passing through the centre of said bracc'E, and bearing against the back ofthe plate C. It will readily Abe seen that the top end of the plate C may be adjusted in any desired proximity to the periphery ofthe roller A,independent ofthe lower end of the plate; the former being supported in its journal-bearings al, and held in place by the set-screws d d', and the latter swinging in said bearings, and

being held in place by means ofthe set-screw F. G represents a hopper, located above the roller and plate in a mannerito guide the corn, wheat, or other article to be ground between the two.

The construction and adjustability of the plate, as hereinabove described, enable the operator to set or arrange Vthe mill for grinding di`erentsized articles, and reducing them to any desired ineness with the greatest ense and dispatch.

What I vclaim as my inventon,'and desire to secure by Letters,` Patent, is

The corrugated plate C, attached to the sliding journal-bearings c1, and adjusted by means of the set-screws d, d', and F, for the purpose and substantially as herein described.

THOMAS GREY.

Witnesses:

B. H. MUEBLE, Enw. WILHELM.

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