US149526A - Improvement in fluting-rollers - Google Patents

Description

Y T. Bosman.

Fluting-Bollers.

PaltehtedAprilmsM.

TATES 'r FFICE,

THOMAS RoRJonN,-OE NEw YORK, N. Y., AsSreNoR To GEORGE e. RATES,

OE SAME PLAGE. I

vINIPROVENIENT IN FLUTlNG-ROLLERS.

Speciication forming part of Letters Patent No, 149,526, dated April '7, 1874; application filed February 3, 1874.

To all whom 'it may concern:

Be it known that I, THOMAS ROEJOHN, of the city, county, and State of New York, have invented an Improvement in Flirting-Rollers, of which the following is a specification:

rlhis invention consists in a pair or combination ofiiuting-rollers for making vV-shaped iluting, the one of which rollers has its ridges and grooves of approximately equal triangular shape or construction, while the ridges of the other roller are of narrower angular construction, or of Strip-like form, and its grooves of a U Shape or with broad open inner bases, and of greater depth than the ridges of the irst-named roller, and so that the pitch-line oi the two rollers is at the outer edges of the ridges of the narrow ridged roller and the inner bases of the triangular grooves of the other roller, whereby the material to be operated upon, as it passes in between the rollers, is transformed into V-Shaped iiuting, and the sides of the iiutes pressed or ironed into shape by the rubbing or pressing action of the sides of the ridges and their outer edges on the maferial throughout the whole length and depth of the iutes, or thereabout, substantially as hereinafter described.

In the drawing, Figure l represents a vertical transverse section on the line as x of a pair of iiuting-rollers constructed in accordance with my improvement: Fig. 2, a Side or edge view of the same; Fig. 3, a view, in profile, of the flirting produced; and Fig. 4, a diagram, on an enlarged scale, in illustration of the grooved and ridged Surfaces of the rollers.

A is the one, and B the other, of a pair of luting rollers, either of which may be the driver o the other. The one, A, of these rollers has its flutes formed by ridges a and grooves b of triangular shape, forming a sharp or close junction at the base of the contiguous ridges, and so that the ridges a, at their base, are of a thickness which approximates the cross-dimensions of the grooves b, between the outer edges of the ridges. The other roller, B, has its iiutes formed by narrower or Strip-like ridges c and grooves d, of somewhat greater depth than the ridges and grooves ot' the roller A, so that the one set of ridges o approximates an equilateral triangle, While the other ridges c 'approximate an isosceles triangle, and the grooves d of the roller B are of a U shape, or with broad open inner bases.

By this construction of the rollers, the pitchlines e f or" them are at the outer extremities or edges of the ridges c and inner edges or bases of the grooves I), and a free space is left between the outer edges lof the ridges a and the inner surfaces or bases of the grooves r'ly for the material tobe fluted to freely pass, as required, between the rollers while it is iiuted by the ridges, in connection with the grooves of the rollers, the outer edges of the ridges c bearing the material close within the sharp or narrow inner edges or bases of the grooves b, andthe sides of the ridges a c workin g in nearly straight or close contiguity with each other, thereby exerting a rubbing or ironing action, as it were, upon opposite sides of the flutes, and making the latter of a sharp or V-shaped form.

I claim- The iiuting-roller A, having its ridges ct and `the outer edges of the ridges c and inner edges of the grooves b, or thereabont, as specified. THOS. BOBJOHN.

Viitiiesses HENRY T. BROWN, FRED. HAYNES.

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