US487554A

US487554A - S late-frame

Info

Publication number: US487554A
Authority: US
Publication date: 1892-12-06
Anticipated expiration: 1909-12-06

Description

(NoModeL) I 5. no. DANIELS.

SLATE FRAME.

No. 487,554. Patented Dec.'6,'1'892;

Tm: oams PErERs 00.; yucn'oumofl WASHINGTON. D c.

NrTED STATES ATENT Prion.

SLATE-,FRAM E.

SPECIFICATION forming part of Letters Patent No. 487,554, dated December 6, 1892.

Application filed September 11 1891. Serial No. 405,418. (No model.)

To all whom it may concern.-

Be it known that I, HENRY E. O. DANIELS, of Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvement in Slate-Frames, of which the following is a specification.

The object of my invention is to provide a noiseless frame for slates which will be simple in construction and the production of which will be attended with little expense.

To this end the invention consists of a slate-frame composed of independent sections applied to opposite sides of the slate and secured together by means of a cord or equivalent device so arranged that it acts not only as a means of securing the parts of the frame together, but also as a muflier for the slate.

The invention also consists in the details of construction and combination of parts hereinafter described and claimed.

Referring to the accompanying drawings, Figure 1 is a perspective view of the slate with the frame thereon embodying my invention. Fig. 2 is a vertical transverse section of the same on the line 00 at of Fig. 1. Fig. 3 is a perspective view of one of the sections of the frame. Figs. 4:, 5 and6 are views of modifications.

Referring to the drawings, in carrying out my invention I provide two frame-

sections

1 and 2, which may be formed of wood or other suitable material or molded from paper-pulp. These frames are of rectangular form, corresponding to the form of the slate, and are provided on their inner edges with grooves3 and 4, so that when placed together the walls of the grooves will embrace the edges of the slate, as shown. These two sections are secured together by means of a cord or equiva lent device 5, which is extended through perforations in the two sections. This cord is so applied that it not only serves as a means for holding the two sections together, but also as a mufller for the slate, rendering it noiseless. I prefer to apply the cord by passing it through the sections and around the outer edges of the same, as shown in Fig. 1; but it is to be understood that it may be applied in other ways-such, for instance, as shown in Fig. 5, in which it will be seen that it extends alternately along the frame on op posite sides thereof and through the same.

In Fig. 6 a machine form of stitch is shown. Here the cord passes through and around the outer edge of the two frames in a manner practiced in an application filed by me on the 31st day of December, 1890, Serial No. 376,370.

In order that the sections may be the more securely held together and prevented from moving with relation to each other laterally, I provide one of the sections with a rib 6, adapted to enter a groove 7, formed in the opposite section.

As shown in Fig. 4, an additional mufflingstrip 8, of felt or other suitable material, may be applied to the outer edge of the two sections and bound thereon by means of the muffling-cord.

While I have shown and described the sections composing the frame as being continuous and in one piece, it is to be understood that they may be otherwise formed without departing from the limits of my invention, the essence of which resides in the slate-frame composed of sections applied to opposite sides of the slate and secured together by means of a cord or equivalent device, whichin addition serves as a muffler.

In view of the liability of slates to be broken it is not desirable to secure the sections together inseparably, as it is often desirable when a slate becomes broken to replace it with another. In such case the cord is simply taken out, when the frame-sections readily separate, permitting a new slate to be inserted in place of the broken one. Manifestly this is an important advantage, which would be lost if the sections were permanently or inseparably secured together, as by gluing or riveting.

Having thus described my invention, what I claim is 1. The combination, with a slate, of two frame-sections applied to opposite sides thereof and secured together by a cord which passes back-and forth from one section to the other, the exposed portions of the cord lying upon the surfaces of the frame sections, whereby the cord su-bserves the double purpose of a muffler and a means for securing the parts together.

2. The combination, with the slate, of the two frame-sections applied to opposite sides thereof and secured together byacord passed two frame-sections applied face to face to opposite sides of the same, one of said sections provided on its inner face with a groove and the other provided 011 its inner face with a rib adapted to enter the groove, and means for securing said parts together.

In testimony whereof I hereunto set my hand, this 24th day of August, 1801, in the presence of two attesting witnesses.

HENRY E. C. DANIELS.

Witnesses:

HENRY I-I. MoReAN, EDWARD HOWARD.