US426258A - Spirally-crimped hoop - Google Patents

Description

(No Model.)

L. L. FROST.

SPIRALLY GRIMPED HOOP.

No. 426,258. Patented Apr. 22, 1890.

A TTORNEYS.

UNITE STATES PATENT OFFICE.

LEONARD L. FROST, OF BARADA, NEBRASKA.

SPlRALLY-CRIMPED HOOP.

SPECIFICATION forming part of Letters Patent No. 426,258, dated April 22, 1890.

Application filed September 16, 1889. serial No. 323,986. (No model.)

To aZZ whom it may concern.-

Be it known that I, LEONARD L. Fnosr, of Barada, in the county of Richardson and State of l\ ebraska-, have invented a new and 1111- proved Hoop, of which the following is a full, clear, and exact description.

This invention relates to hoops of the class employed in coopers ware, the object of the invention being to prevent the displacement of the hoop in case of the shrinkage of the staves; and to the end named the invention consists, essentially, of a hoop formed with a spiral groove, which extends in an unbroken or in broken sections from end to end of the band from which the hoop is formed, the crimp by preference commencing above the vertical center of such band and ending by preference below such center.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure 1 is a perspective View of a pail provided with hoops which embody my invention. Fig. 2 isa perspective view of a hoop formed with a continuous spiral crimp. Fig. 3 is a perspective view of a portion of a hoop wherein the spiral crimp is formed in sections. Fig. 4 is a cross-sectional view on line 4 4 of Figs. 2 and 3, and Fig. 5 is a cross-sectional view on line 5 5 of Fig. 2.

In the drawings, represents a band or strip of metal, in the outer face of which there is formed a spiral crimp or groove 11, the metal being bodily pressed inward, thus making an internal bead. After the crimp has been formed as above described, the ends of the band are united in any proper manner to form a hoop. In Figs. 1 and 2 the crimp 11 is continuous from end to end of the band, but in Fig. 3 the crimp is formed in broken sections 2, the ends of said sections being open and the sections being arranged spi rally. In practice I prefer that the leading end of the continuous spiral crimp shown in Figs. 1 and 2 should be open, as by so forming the crimp the surface of the staves of the pail or other article of coopers ware in connection with which the hoop is to be employed will be cut away thereby as the hoop is advanced upon the pail or other article, thus leaving a spirally-inclined groove 3, as shown in Fig. 1.

The open-ended spiral crimp is especially adapted for hard woods that require cutting; but with soft woods the wood fiber would be compressed and there would be no necessity for opening the ends of the crimp.

The construction of hoop shown in Fig. 3 is best adapted for use in connection with hard woods. I have shown only one line of crimps in the drawings but I might have other lines of crimps formed in the hoops. By means of such a hoop I form a groove by simply turning onthe wood, whereas in other constructions known to me the groove is first formed and then the hoop is placed in the groove, this being the case with wire hoops or band-hoops in which there is a straight crimp.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. Ahoop formed with an inwardly-projecting spiral crimp, substantially as described.

2. A hoop formed with an inwardly-projecting spiral crimp leading from a point above the vertical. center of the hoop to a point below such center.

3. A hoop formed with an inwardly-projecting spiral crimp, the leading end of which is open.

4. A hoop formed With an inwardly-projecting spiral crimp, such crimp being formed in sections.

LEONARD L. FROST.

\Vitnesses:

CHARLES DOCKHORP, JOACHIM' EoKLoFF.

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