US294397A - Carpet-fastener - Google Patents

Description

(Model.) Y Y J. A. MARKOE.

CARPET FASTBNER. A Y No. 294,397. Patnted Mar. 4, 1884. A

UNITED STATES PATENT OFFICE.

JOHN A. MARKOE, OE sT. PAUL, MINNESOTA.

CARPET- FAS'l-'EN ER.

SPECIFICATION forming part of Letters Patent No. 294,397, dated. March 4, 1884.

Application filed August 4l?, 1883. (Model.) u y To all wiz/0.1% it may concern.-

Beit known that I', JOHN A. MARKoE, a

citizen of the United States, and a resident of St. Paul, county of Ramsey, and State of Minnesota, have invented certain new and useful Improvements in VCarpet- Clamps, of which the following specification is a full, clear, and exact description, reference being also had to the accompanying drawings, in Which- Figure 1 is a perspective View of a section of a base board' and floor of a house, showing the manner of setting the clamps. Fig. 2 is an enlarged sectional side View, and Fig. 3 is an enlarged front elevation of one of the clamps. Fig. 4 is an enlarged perspective View ofthe pointed bar and head. Fig. 5 is a similar view of the gripping-jaw disconnected.

A is the iioor, and B the base-board, of a room; and C G are a number of small metal bars, provided. on their lower ends with points a, by which they are driven into the floor A at regular intervals, as shown, close up to the base B. In Fig. l one of these barsl is shown with its jaw attached and the other one shown with its jawreinoved. The upper ends of these bars are enlarged into heads b, provided with upwardly and backwa'rdlyinclining slots c eut through them, and teeth d on the lower faces, as shown.

D is a flat jaw, provided with teeth e on its lower edge, and having large fiat ears or wings E E2, projecting from its upper edge', and adapted to be held upon either side of the head b by a pivot, g, passing through the ears E E2, and also through thel slot c, while the upper edge, h, of thejaw is adapted to catch into the teeth d onthe head b. The upper ends ofthe ears F. E2 project above the head b a short distance, as shown, so that the ears and the jaw may be driven downward by a blow from above when the jaws areto be released, as hereinafter eX- plained. These clamps will be arranged at suitable intervals around the room, usually everysix or eight'inches, and after the carpet has been tted to the. room the jaws D are turned upward and the edges of the carpet placed beneath the heads b, and the jaws forced down beneath the heads b, causing vthe teeth e to catch into the carpet and the edges h to catch beneath the teeth e, as shown in Fig. 2, thereby iirmly clamping and holding the carpet down upon the floor. The slots c are of a length sufficient to permit the points ofthe 'teeth e to touch 4the floor A'before the pivot greaches the lower end of the slot c. By this simple arrangement the carpet is firmly held, and cannot be withdrawn from the clamps unless the ears E Ez be forced down from above to cause the teeth e to sink into the carpet and release the edge h from the teeth e, the projecting upper end of the ears E E2 permitting this driving of the jaw downward.A The forcing of the jaw D backward after the carpet is beneath the head causes its teeth e to sink into the material of the carpet, but not to a depth sufficient to injure it, but leaving some space still between the points of the teeth e and the floor A, so that the jaw can be released as above described. As before stated, the upper ends of the ears E' E2 project above the head b when the jaws D are downward, to enable the latter to be driven "downward to release the carpet; but the diametersof the ears'at right angles to the jaws are less than their diametersparallel with the jaws, so that when the pointsa are driven into thefloor A t-he ears and jaw may be turned outward to leave the upper end of the head b projecting above the ears, so that the blows used in driving the points into the `wood will not strike the ears. ,l

The points e may be arranged as screws to hold the bars C in the wood 5 or the point or screw may be arranged to beffastened into the base-board instead of the floor, as shown by dotted lines in Fig. 2.

Having described my invention and set forth its merits, what I claim is l A carpet-fastener composedl of a xed bar, C, provided with means a for attaching it to the floor or base-board, and with a forwardlyprojecting head, b, having a slot, c, therein and teeth d on its under edge, and a movable jaw, D, having ears E E2 pivoted to the bar G in the said slot c, and clamp-teeth e e on its lower edge, operating substantially as and for the purpose herein specified.

In testimony whereof I have hereunto set my handin presence of two subscribing witnesses.

. .TOI-IN A. MARKOE.

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