US507722A

US507722A - Carpet-tack

Info

Publication number: US507722A
Authority: US
Publication date: 1893-10-31
Anticipated expiration: 1910-10-31

Description

(N0 Modeli) E. SIBLEY. CARPET TACK.

No. 507,722. I. I I Patented Oct. 31,1893.

E STATES EDWARD L. SIBLEY, OF BENNINGTON, VERMONT.

CARPET-TACK.

SPECIFICATION forming part of Letters Patent No. 507,722, dated October 31, 1893.

Application fled November 30,1892. Serial No. 453,652. (No model.)

To all whom. it may concern.-

Be itknown that I, EDWARD L. SIBLEY, a citizen of the United States,residing at Bennington, in the county of Ben'nington and State of Vermont, have invented certain new and useful Improvements in Carpet-Tacks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accourpanying drawings, which form part of this specification.

This invention relates to an improvement in double pointed or staple tacks and has for its object to produce a tack having a head constructed in such a manner that when the tack is driven to place through the meeting edges of a carpet or matting, the head of the tack will be prevented from being driven entirely to the floor, wherebybreaking or shearing of either the warp or the filling is avoided, and a further object is to produce a double pointed tack having its tangs formed with their outer sides beveled from the head to the point, and theirinner sides straight from the head to the point, the tangs being bent so as to bring their points substantially opposite to each other and on a line drawn longitudinally through the center of the head, and having its head formed with shoulders arranged on diagonally opposed ends whereby a binding surface is formed on one side of the base of each of the tangs and a final object is to produce a double pointed tack having diagonally opposite shoulders. that will permit of its being struck from a blank plate without waste of material, and the invention consists in the novel construction and arrangements of parts as'will be hereinafter fully described, and more particularly pointed out in the claims.

Referring to the drawings: Figure 1,-is a plan view of a plate on which the contour ofthe blanks to be stamped out are shown in dotted lines. Fig. 2, is a like view of a tack blank previous to being bent into shape. Fig. 3, 1s a perspective view of the completed tack with its tangs bent inward, or at right angles with the head. Fig. 4, is an edge view of the completed tack. Fig. 5, is a like view of Fig. 2, showing in dotted lines a slightly modified form in the angle at which the tangs may be bent upon the head, and, Fig. 6, is a perspective view of the same of a completed tack, and, Fig. 7, is a plan view showing a portion of two pieces of matting or carpet with the completed tack driven over their meeting edges.

Like letters of reference refer to corresponding parts in each figure of the drawings.

A rectangular metal plate A. is formed of any convenient length, and of a suitable thickness from which the blanks for the tacks are struck. The plates A are of such a width, and the tack blanks are of such a form, that in stamping the blanks out of the plate in a diagonal direction across the plate two series of cuts are made parallel to each other, one series extending inwardly from one edge of the blank and the other series from the oppoposite edge, and a series of parallel cuts are made at right angles to and joining the adjacent inner ends of the first named cuts, and in this operation no material is wasted, and the desired taper is given to that portion, which is to form the tangs that is most useful in the completed tack, without cutting the edges of the blank forming the sides.

The tack is made of any suitable material, and is formed with a rectangular head or body portion B and tangs C. The inner faces 0, of the tangs when stamped out of the blank are straight and occupy a position on each side of a straight line drawn longitudinally through the head B. and the outer sides a, of the tangs are tapered from the sides of the head outward to the points 61, whereby the said tangs are caused to assume an approximately wedge shape form. In constructing the tangs in this manner there is an offset forming the shoulder or bearing surface b on one side of the base of the tang at each end of the head of the tack. These two shoulders are on 0pposite sides of the head and bear upon and firmly hold both the warp D and filling E securely in place, as clearly shown in Fig. 7.

When the tangs O are bent at right angles with the head B. upon substantially thesame line with the shoulders I), the entering points (1, of the tangs are not in alignment with a line drawn longitudinally through the center of the head B. as they would be found to be on each side of the line; but in finishing the tack, if desired the tangs may be bent inward in order to bring the points to alignment, or if preferred the tangs may be bent upon the head B. on a line at an obtuse angle to a the ends of the shoulders I), to bring the points in alignment as shown in dotted lines in Fig. 5, to form the completed tack shown in Fig. 6. In the use of the ordinary double point-ed tack for fastening the edges of breadths of carpet or matting to the floor, the tangs of the tack spread the woof or filling to the extent of the width of the tack head, leaving a hold upon the fabric of only the tang over the thread of the warp. As these threads are usually few in number in the more ordinary grades of fabric, the strain of the tangs often breaks the warp and the carpet is released. Q

From the formation of my improyed tack it will be seen that rit o vercomesthe objection, heretofore experienced in fasteningcarpetsf w he do b e po nted ;[asf i 3 ;Bj is formed with'shoulders b, which are diago nally opposite to each other, and'theirjends preferably on about the same line with the bend of the tangs G. which stands at right 2 5 angles with the head.

As this tack is driven through the fabric into the floor and thetangs spread the woof or filling E. the shoulders 1), extending ont'on a plane, with the head to afpoint about on'aj linewithtthe bend of the tangs are'drawn downupon the surface of the oof or filling:

by the side of thetangspand thusilo in'd the fabric tothe floor and relieve the strainbf the tangs upon the oth er frail threads of the 3 5 warp.

what I claim as new and desire to secure by Letters Patent of the United States, is-

l. A double pointed tack having a Wedge Having thus fully described my invention,

shoulder or bearing surface on one side and opposite the bend of the tang, said shoulders being in diagonal'relation to eachother and adapted to be drawn down upon the surface as the tang at the side is driven into the fabric, as set forth.

2. A double pointed tack having its tangs tapered from theouter side of the head and arranged on opposite sides of and adjacentto a line drawn longitudinally through the center of the head and a shoulder on each end of the head on one side of the base of the tangs, as set forth.

3. A double pointed taok having its tangs arranged on opposite. sides of a line drawn longitudinally thro'nghthe center of its head portion, and a shonlder on each end of the ghead on the opposi 'te side of'theline from the ease f h ease??? lt'e ff fi e' bf i mu l l l -ap r dnb n 's les r h he the inner std 3 straight s'stfort 1.; F

nouns pointed maenatviii mfigssha lshoulders'on the ends of the head on opposite Esides of a line drawn longitu d inallythifohgh l the center of the head, said fangs beinglbent hinges se forth."

{presence of two witnesses. l eh L; S'IBLEY.

1 Witnesses? k EDWVA'RD J. HALL, l Armin PATCHEN.

4, A dou'ljlepointed tack and shoulders on oppbsite sides "of and "adjacent to a line drawn lbhgitudinally' through" the fa t ns n e tson s' a iddfinaas